Refine
Has Fulltext
- yes (720) (remove)
Year of publication
- 2024 (16)
- 2023 (29)
- 2022 (33)
- 2021 (34)
- 2020 (60)
- 2019 (29)
- 2018 (33)
- 2017 (30)
- 2016 (31)
- 2015 (108)
- 2014 (26)
- 2013 (17)
- 2012 (20)
- 2011 (23)
- 2010 (13)
- 2009 (14)
- 2008 (12)
- 2007 (37)
- 2006 (21)
- 2005 (27)
- 2004 (30)
- 2003 (13)
- 2002 (8)
- 2001 (8)
- 2000 (5)
- 1999 (5)
- 1998 (6)
- 1997 (7)
- 1996 (7)
- 1995 (8)
- 1994 (8)
- 1989 (1)
- 1972 (1)
Document Type
- Doctoral Thesis (411)
- Postprint (136)
- Article (88)
- Preprint (35)
- Habilitation Thesis (22)
- Conference Proceeding (11)
- Master's Thesis (11)
- Monograph/Edited Volume (3)
- Course Material (2)
- Bachelor Thesis (1)
Keywords
- Synchronisation (20)
- diffusion (19)
- synchronization (14)
- data analysis (13)
- Datenanalyse (12)
- Klimawandel (10)
- Nichtlineare Dynamik (10)
- anomalous diffusion (10)
- Spektroskopie (9)
- Synchronization (9)
- Astrophysik (8)
- Chaos (8)
- Galaxien (8)
- Gravitationswellen (8)
- atmosphere (8)
- climate change (8)
- stochastic processes (8)
- Arktis (7)
- Atmosphäre (7)
- Magnetismus (7)
- astrophysics (7)
- spectroscopy (7)
- thin films (7)
- Biophysik (6)
- Kosmologie (6)
- Magnetohydrodynamik (6)
- Polymere (6)
- Quasare (6)
- Reflexion (6)
- Sternentwicklung (6)
- chaos (6)
- complex networks (6)
- galaxies (6)
- gravitational waves (6)
- magnetism (6)
- molecular motors (6)
- nonlinear dynamics (6)
- organic solar cells (6)
- stellar evolution (6)
- Arctic (5)
- Exoplaneten (5)
- Gammastrahlungsastronomie (5)
- Lidar (5)
- Oberfläche (5)
- Stochastische Prozesse (5)
- Strahlungstransport (5)
- Turbulenz (5)
- azobenzene (5)
- black holes (5)
- cosmic rays (5)
- dynamics (5)
- exoplanets (5)
- galaxy evolution (5)
- gamma-ray astronomy (5)
- integral field spectroscopy (5)
- komplexe Netzwerke (5)
- kosmische Strahlung (5)
- massive stars (5)
- molecular dynamics (5)
- molekulare Motoren (5)
- numerical relativity (5)
- polymers (5)
- radiative transfer (5)
- simulation (5)
- star formation (5)
- stellar activity (5)
- turbulence (5)
- ultrafast (5)
- Astronomie (4)
- Astroteilchenphysik (4)
- Ellipsometrie (4)
- Ferroelektrete (4)
- Fluoreszenz (4)
- Gitterdynamik (4)
- Kuramoto model (4)
- Nanopartikel (4)
- Nanostruktur (4)
- Oberflächengitter (4)
- Phase (4)
- Physik (4)
- Physikdidaktik (4)
- Polyelektrolyt (4)
- Rauschen (4)
- Röntgenspektroskopie (4)
- Simulation (4)
- Simulationen (4)
- Sterne (4)
- Sternentstehung (4)
- Teilchenbeschleunigung (4)
- Zeitreihenanalyse (4)
- biophysics (4)
- cosmology (4)
- dünne Schichten (4)
- fluorescence (4)
- general relativity (4)
- machine learning (4)
- microlensing (4)
- noise (4)
- particle acceleration (4)
- perovskite solar cells (4)
- physics (4)
- stars (4)
- stellar physics (4)
- stellar winds (4)
- supernova remnants (4)
- surface (4)
- transport (4)
- ultrafast dynamics (4)
- 2D (3)
- Adhäsion (3)
- Adsorption (3)
- Aerosol (3)
- Antarktis (3)
- Datenassimilation (3)
- Diffusion (3)
- Dynamik (3)
- Galaxienentwicklung (3)
- Gammastrahlung (3)
- H.E.S.S. (3)
- Hydrodynamik (3)
- Integrated Assessment (3)
- Klimatologie (3)
- Ladungstransport (3)
- Lehrkräftebildung (3)
- MHD (3)
- Magnetisierungsdynamik (3)
- Molekulardynamik (3)
- Motilität (3)
- Netzwerke (3)
- Nicht-Fulleren-Akzeptoren (3)
- Nonlinear Dynamics (3)
- Organische Solarzellen (3)
- Oszillatoren (3)
- Ozon (3)
- Perowskit (3)
- Phasenübergang (3)
- Photoelektronenspektroskopie (3)
- Photovoltaik (3)
- Physics Education (3)
- Plasmaphysik (3)
- Polyelektrolyte (3)
- Quantengravitation (3)
- Quantenoptik (3)
- Quasar (3)
- Rashba effect (3)
- Rashba-Effekt (3)
- Reflexivität (3)
- Rekurrenzanalyse (3)
- Resonanzenergietransfer (3)
- Röntgenbeugung (3)
- Saturn (3)
- Schwarze Löcher (3)
- Sonnenkorona (3)
- Sternaktivität (3)
- Sternwinde (3)
- Strahlungsgürtel (3)
- Supernovaüberreste (3)
- Synchrotronstrahlung (3)
- Theorie (3)
- Unsicherheitsanalyse (3)
- Wellenleiter (3)
- X-ray diffraction (3)
- Zelladhäsion (3)
- adsorption (3)
- astroparticle physics (3)
- bacteria (3)
- cell adhesion (3)
- complex systems (3)
- dynamical systems (3)
- ferroelectrets (3)
- ferroelectric polymers (3)
- filaments (3)
- fractional Brownian motion (3)
- galaxy structure (3)
- graphene (3)
- hydrodynamics (3)
- hypersound (3)
- hysteresis (3)
- intergalactic medium (3)
- intergalaktisches Medium (3)
- lattice dynamics (3)
- magnetic fields (3)
- magnetohydrodynamics (3)
- massereiche Sterne (3)
- model (3)
- models (3)
- nanoparticles (3)
- nanostructure (3)
- networks (3)
- nonergodicity (3)
- organische Halbleiter (3)
- organische Solarzellen (3)
- perovskite (3)
- phase oscillators (3)
- phase transition (3)
- phase transitions (3)
- physics education (3)
- plasma physics (3)
- prediction (3)
- quantum gravity (3)
- quasar (3)
- quasars (3)
- radiation belts (3)
- random diffusivity (3)
- resonant energy transfer (3)
- schwarze Löcher (3)
- statistical models (3)
- statistische Modelle (3)
- stellar populations (3)
- stochastische Prozesse (3)
- surface relief grating (3)
- synchrotron radiation (3)
- thiouracil (3)
- ultrafast x-ray diffraction (3)
- ultraschnell (3)
- uncertainty analysis (3)
- 1D (2)
- 3D (2)
- AGN (2)
- ARPES (2)
- Aerosole (2)
- Akkretion (2)
- Allgemeine Relativitätstheorie (2)
- Anfangsdaten (2)
- Anisotropie (2)
- Antarctica (2)
- Anthropogene Klimaänderung (2)
- Astrophotonik (2)
- Astrophysics (2)
- Atmosphärenmodellierung (2)
- Bakterien (2)
- Benetzung (2)
- Blazar (2)
- Bose-Einstein condensation (2)
- Brillouin scattering (2)
- Casimir-Polder interaction (2)
- Climate Change (2)
- Computertomographie (2)
- Crab Nebula (2)
- Dark Matter (2)
- Displays (2)
- Dunkle Materie (2)
- Dynamische Systeme (2)
- Dynamo (2)
- Eigenspannung (2)
- Elektret (2)
- Elektronenbeschleunigung (2)
- Entscheidung bei Unsicherheit (2)
- Entstehung der Milchstraße (2)
- Erdbeben (2)
- Extremereignisse (2)
- FLASH (2)
- Fernerkundung (2)
- Ferroelektret (2)
- Ferroelektrika (2)
- Filament (2)
- Filamente (2)
- Freie-Elektronen-Laser (2)
- Frequenzkonversion (2)
- Galactic center (2)
- Galaktische Archäologie (2)
- Galaxie (2)
- Galaxienhaufen (2)
- Gammaastronomie (2)
- Graphen (2)
- Gravitationslinsen (2)
- Gravitationslinseneffekt (2)
- Greenland (2)
- Grenzschicht (2)
- Gyrochronologie (2)
- H.E.S.S (2)
- Hochdruck (2)
- Hysterese (2)
- In-situ Experimente (2)
- Indian Monsoon (2)
- Indischer Monsun (2)
- Integral field spectroscopy (2)
- Integralfieldspektroskopie (2)
- Integrierte Bewertung (2)
- Intergalactic Medium (2)
- Intergalaktisches Medium (2)
- Jets (2)
- Kalman filter (2)
- Keimbildung (2)
- Klima (2)
- Kolloides System (2)
- Kompensatoren (2)
- Komplexe Systeme (2)
- Kopplung (2)
- Krebsnebel (2)
- Kuramoto-Modell (2)
- Laserstrahlschmelzen (2)
- Lattice dynamics (2)
- Lokalisierung (2)
- Löschkurve (2)
- Magellanic Clouds (2)
- Magellansche Wolken (2)
- Magnetfelder (2)
- Maschinelles Lernen (2)
- Meereis (2)
- Membran (2)
- Meteorologie (2)
- Microlensing (2)
- Mikrolinsen (2)
- Milchstraße (2)
- Milky Way (2)
- Milky Way evolution (2)
- Modellierung (2)
- Molekularer Motor (2)
- Monsun (2)
- Morphogenese (2)
- Morphologie (2)
- NEXAFS (2)
- NLO (2)
- Nichtgleichgewicht (2)
- Noise-induced phenomena (2)
- OLED (2)
- Orgelpfeife (2)
- P(VDF-TrFE) (2)
- PDLC (2)
- Paläoklimatologie (2)
- Perowskit Solarzellen (2)
- Phasenübergänge (2)
- Phononen (2)
- Photoalignment (2)
- Photochemie (2)
- Photometrie (2)
- Photoorientierung (2)
- Physik Lehramt (2)
- Piezoelektrizität (2)
- Polyelectrolyte (2)
- Polypropylen (2)
- Prognose (2)
- Quantendraht (2)
- Quantenfeldtheorie (2)
- Quasars (2)
- RIXS (2)
- Raumzeitgeometrie (2)
- Rauschinduzierte Phänomene (2)
- Rekonstruktionsmethoden (2)
- SHG (2)
- Selbstorganisation (2)
- Silizium (2)
- Solar corona (2)
- Solarzellen (2)
- Sonne (2)
- Spectroscopy (2)
- Statistik (2)
- Sternatmosphären (2)
- Sternphysik (2)
- Stochastische Resonanz (2)
- Stochastischer Prozess (2)
- Substrat (2)
- Supernovaüberrest (2)
- Supraleiter (2)
- Surrogate Data (2)
- Synchronisierung (2)
- Theorie von Förster (2)
- Thiouracil (2)
- Ultrafast X-ray diffraction (2)
- Vesikel (2)
- Wechselwirkungsabstand (2)
- Wellenausbreitung (2)
- Wiederkehrdiagramme (2)
- Wissenschaftstheorie (2)
- Wolf-Rayet stars (2)
- X-ray (2)
- active galactic nuclei (2)
- additive Fertigung (2)
- additive manufacturing (2)
- adhesion (2)
- aerosol (2)
- allgemeine Relativitätstheorie (2)
- anisotropy (2)
- arctic (2)
- astronomy (2)
- astrophotonics (2)
- atmospheric modelling (2)
- atom chip (2)
- azobenzene surfactant (2)
- binary black holes (2)
- binary stars (2)
- boundary layer (2)
- brushes (2)
- cavity quantum electrodynamics (2)
- charge storage (2)
- charge transport (2)
- chemotaxis (2)
- chimera states (2)
- climate (2)
- compensation films (2)
- computed tomography (2)
- cooperative phenomena (2)
- cosmological simulations (2)
- cytoskeleton (2)
- dark matter (2)
- data assimilation (2)
- displays (2)
- dunkle Materie (2)
- dynamische Systeme (2)
- dynamo (2)
- efficiency (2)
- electret (2)
- electronic structure (2)
- elektronische Struktur (2)
- ellipsometry (2)
- energy (2)
- experiment (2)
- extrasolar planets (2)
- extreme events (2)
- eye movements (2)
- ferroelectret (2)
- ferroelectrics (2)
- films (2)
- first passage time (2)
- first-passage time (2)
- fluctuations (2)
- fluorescence microscopy (2)
- galactic astronomy (2)
- galaktisches Zentrum (2)
- galaxy formation (2)
- gamma rays (2)
- gamma-rays (2)
- geladene Systeme (2)
- globular clusters (2)
- gravitational lensing (2)
- gravity (2)
- gyrochronology (2)
- holography (2)
- impact (2)
- in-situ testing (2)
- initial data (2)
- instability (2)
- integrated optics (2)
- interaction distance (2)
- interface engineering (2)
- interfaces (2)
- kooperative Phänomene (2)
- laser powder bed fusion (2)
- lidar (2)
- magnetization dynamics (2)
- magnetostriction (2)
- mathematical modeling (2)
- mathematische Modellierung (2)
- membrane (2)
- meteorology (2)
- microscopy (2)
- mid-temperature transition (2)
- mode stability (2)
- modeling (2)
- molecular doping (2)
- morphology (2)
- motility (2)
- nanoscale heat transfer (2)
- nichtlineare Datenanalyse (2)
- nichtlineare Dynamik (2)
- nichtlineare Optik (2)
- non-fullerene acceptors (2)
- nonlinear time series analysis (2)
- nucleobases (2)
- numerical simulations (2)
- optical spectroscopy (2)
- optische Spektroskopie (2)
- organic semiconductor (2)
- organic semiconductors (2)
- organic solar cell (2)
- organische Elektronik (2)
- oscillations (2)
- ozone (2)
- particle-in-cell simulations (2)
- particles (2)
- pattern formation (2)
- phase (2)
- phase synchronization (2)
- photo-orientation (2)
- photoalignment (2)
- photochemistry (2)
- photoelectron spectroscopy (2)
- photoluminescence (2)
- photometry (2)
- photovoltaics (2)
- piezoelectric sensors (2)
- piezoelectricity (2)
- plasmonics (2)
- polyelectrolytes (2)
- polypropylene (2)
- power spectral analysis (2)
- power spectrum (2)
- projections (2)
- protein folding (2)
- pump-probe spectroscopy (2)
- quantum field theory (2)
- quantum optics (2)
- quenching curve (2)
- random walk (2)
- rare-earth metals (2)
- recombination (2)
- reconstruction methods (2)
- recurrence (2)
- recurrence analysis (2)
- recurrence plot (2)
- recurrence plots (2)
- recurrence quantification analysis (2)
- reduced dimensionality (2)
- reduzierte Dimensionalität (2)
- regional climate model (2)
- reionization (2)
- residual stress (2)
- rolling adhesion (2)
- roughness (2)
- sea ice (2)
- silicon (2)
- simulations (2)
- solar cells (2)
- stability (2)
- stars: abundances (2)
- statistical physics (2)
- statistics (2)
- statistische Physik (2)
- stellar atmospheres (2)
- stellar dynamics (2)
- stochastic resonance (2)
- substrate (2)
- supermassereiche Schwarze Löcher (2)
- supermassive black holes (2)
- supernova remnant (2)
- superstatistics (2)
- surface-relief gratings (2)
- swelling (2)
- theory (2)
- theory of Förster (2)
- time series analysis (2)
- transmission spectroscopy (2)
- trapping (2)
- ultraschnelle Dynamik (2)
- ultraschnelle Röntgendiffraktion (2)
- vesicle (2)
- waveguides (2)
- wetting (2)
- x-ray diffraction (2)
- x-ray spectroscopy (2)
- 'Reduced-Form' Modellierung (1)
- 'coupling sensitivity' (1)
- 1 (1)
- 2D Systeme (1)
- 2D Transport (1)
- 2D perovskites (1)
- 2D transport (1)
- 2d systems (1)
- 3 (1)
- 3 body recombination (1)
- 3D Modellierung (1)
- 3D Systeme (1)
- 3D field calculations (1)
- 3D-Feldsimulationen (1)
- 3D-modeling (1)
- 3d systems (1)
- 4-nitrobenzenethiol (1)
- 4-oxadiazol (1)
- 4-oxadiazole (1)
- 4T (1)
- AFM (1)
- AG (1)
- AMALi (1)
- ATP hydrolysis (1)
- ATP-Hydrolyse (1)
- AU (1)
- Abbau von Boten-RNS (1)
- Absorptionsspektroskopie (1)
- Abwärme (1)
- Accretion (1)
- Active Galactic Nuclei (1)
- Adhesion (1)
- Adhäsionscluster (1)
- Adsorptionsschichten (1)
- Aerosol und Wolken Lidar (1)
- Aerosols (1)
- Agglomerate (1)
- Agglomeration (1)
- Aggregates (1)
- Airborne Aerosol and Cloud Lidar (1)
- Akkretionsscheiben (1)
- Aktin (1)
- Aktinfilamente (1)
- Aktive Galaxie (1)
- Aktive Galaxienkerne (1)
- Aktiven Galaxienkerne (1)
- Aktivität (1)
- Aktomyosin (1)
- Aktuation (1)
- Aktuatoren (1)
- Akustik (1)
- Alfv´en mode MHD turbulence (1)
- Alfv´en-Modus MHD-Turbulenz (1)
- Alignment (1)
- Alkane (1)
- Allgemeine Zirkulation (1)
- Allgemeine atmosphärische Zirkulation (1)
- Alpha-Effekt (1)
- Alternative Akzeptorpolymere (1)
- Amazon rainforest (1)
- Amphiphile Verbindungen (1)
- Anderson (1)
- Angle- and spin-resolved photoemission spectroscopy (1)
- Anharmonizität (1)
- Anisotropy (1)
- Anomal (1)
- Anomalous (1)
- Anrege-Abtast Spektroskopie (1)
- Anregungs-Abfrage-Experiment (1)
- Anregungs-Abfrage-Spektroskopie (1)
- Antarctic (1)
- Antibiotics (1)
- Antibiotika-Toleranz (1)
- Antibiotikaresistenz (1)
- Antiferromagnetisch (1)
- Antiferromagnetismus (1)
- Antimikrobielle Peptide (1)
- Antrieb (1)
- Arctic Haze (1)
- Arctic Oscillation (1)
- Arctic aerosol (1)
- Arctic atmosphere (1)
- Arctic boundary layer (1)
- Arctic haze (1)
- Arctic-midlatitude linkages (1)
- Arktische Nebel (1)
- Arktische Oszillation (1)
- Aromaticity (1)
- Aromatizität (1)
- Assemblierung (1)
- Asteroiden (1)
- Asteroseismologie (1)
- Astrobiologie (1)
- Astrometrie (1)
- Astronomical instrumentation (1)
- Astronomy (1)
- Astroteilchen (1)
- Atlantic Thermohaline Circulation (1)
- Atlantic meridional overturning circulation (1)
- Atlantischer Ozean (1)
- Atmosphärendynamik (1)
- Atmosphärenforschung (1)
- Atom chip (1)
- Atom-Chips (1)
- Atom-Oberflächenwechselwirkung (1)
- Atomchip (1)
- Atomic Force Microscope (1)
- Atomoptik (1)
- Attraktorrekonstruktion (1)
- Au(111) (1)
- Augenbewegungen (1)
- Auger electron spectroscopy (1)
- Auger-Meitner electron spectroscopy (1)
- Auger–Meitner (1)
- Ausbreitung (1)
- Ausbreitung der kosmischen Strahlung (1)
- Ausbreitung planetarer Wellen (1)
- Austausch zwischen zwei Spezies (1)
- Autokorrelation (1)
- Azobenenzen (1)
- Azobenzen (1)
- Azobenzene (1)
- Azobenzene containing surfactant (1)
- Azobenzol enthaltende Moleküle (1)
- Azobenzol enthaltendes Tensid (1)
- Azobenzol-haltiges Tensid (1)
- Azobenzolhaltige Polymerfilme (1)
- BESSY II. (1)
- BL Lacertae objects: individual (1)
- Bacterial biofilms (1)
- Bandenenergien (1)
- Bandenprofil (1)
- Barokline Instabilität (1)
- Bayesian estimation (1)
- Bayesian inference (1)
- Bayessche Schätzer (1)
- Bayessche Statistik (1)
- Begleitgalaxien (1)
- Bemessungshochwasser (1)
- Bending energy (1)
- Benetzungsübergang (1)
- Beobachtungen (1)
- Beobachtungen mit TESS (1)
- Beugung niederenergetischer Elektronen (1)
- Beugungseffizienz (1)
- Bi2Se3 (1)
- Bi2Te3 (1)
- Biegeenergie (1)
- Bifurkationsanalyse (1)
- Bilanz (1)
- Bilddatenanalyse (1)
- Bilirubin oxidase (1)
- Bindungsinteraktion (1)
- Bio-Hybrid (1)
- Bio-Hybridsystem (1)
- Biofilme (1)
- Biofilms (1)
- Biological defense mechanisms (1)
- Biomechanik (1)
- Biomembranen (1)
- Biomoleküle (1)
- Biopolymere (1)
- Bistability (1)
- Bistabilität (1)
- Blasendomänen (1)
- Blickbewegungen (1)
- Blockcopolymere (1)
- Bogoliubov theory (1)
- Bogoliubov-Theorie (1)
- Bose-Einstein Kondensation (1)
- Bose-Einstein condensates (BECs) (1)
- Bose-Einstein-Kondensation (1)
- Bosegas (1)
- Bragg peak (1)
- Brain Code (1)
- Brechungsindex von Azobenzol-haltigen Tensiden (1)
- Brillouin Streuung (1)
- Brownian motion (1)
- Brownian yet non-Gaussian diffusion (1)
- Budgetstudie (1)
- Budgetstudien (1)
- Bugwellenschocks (1)
- Bulge (1)
- C-Fluss (1)
- C-Senke (1)
- CALIPSO (1)
- CLSM (1)
- CM(-1) (1)
- CT Komplex (1)
- CT complex (1)
- CVD (1)
- Capella (1)
- Capsule (1)
- Carbonfaser Herstellung (1)
- Cascading (1)
- Casimir effect (1)
- Casimir-Effekt (1)
- Casimir-Polder Wechselwirkung (1)
- Casimir-Polder-Interaktion (1)
- Cassini<Raumsonde> (1)
- Cassiopeia A (1)
- Cell-cell adhesion (1)
- Cepstrum (1)
- Chalcopyrite (1)
- Chalkopyrit (1)
- Chaostheorie (1)
- Chaotic dynamics (1)
- Chaotische Dynamik (1)
- Chaotische Oszillationen (1)
- Chaotische Sattel (1)
- Charakterisierung Planetenatmosphären (1)
- Charge Transport (1)
- Charge recombination (1)
- Charge-Storage (1)
- Charged Systems (1)
- Chebyshev inequality (1)
- Chemical Abundances (1)
- Chemical Vapour Deposition (1)
- Chemical physics (1)
- Chemically patterned surfaces (1)
- Chemie-Transport-Modell (1)
- Chemodynamik der Milchstraße (1)
- Chemokinematik der Milchstraße (1)
- Chemotaxis (1)
- Chemotaxsis (1)
- Cherenkov showers (1)
- Cherenkov telescopes (1)
- Cherenkov-Schauern (1)
- Cherenkov-Teleskope (1)
- Chimäre-Zustände (1)
- Chromatin (1)
- Chromhexacarbonyl (1)
- Chromosphere (1)
- Chromosphäre (1)
- Circumgalactic Medium (1)
- Climate (1)
- Climate change (1)
- Climatology (1)
- Cloze predictability (1)
- Cloze-Vorhersagbarkeit (1)
- Clustering (1)
- Cobalt thin film (1)
- Coherence (1)
- Compacton (1)
- Complementarity (1)
- Complex (1)
- Complex Network (1)
- Complex networks (1)
- Computed Tomography (1)
- Computer simulation (1)
- Computertomography (1)
- Condensation (1)
- Conic compartments (1)
- Content Knowledge (1)
- Continuous Wavelet Spectral Analysis (1)
- Convection (1)
- Copper Phthalocyanine (1)
- Core-Collapse Supernovae (1)
- Coriolis Effekt (1)
- Coriolis effect (1)
- Correlation Analysis (1)
- Cosmic Dust (1)
- Cosmology (1)
- Coster–Kronig (1)
- Coupled Systems (1)
- Cross-Recurrence-Plot (1)
- Crystallization (1)
- CuInS2 (1)
- Cystic fibrosis (1)
- Cytochrome c (1)
- DFB laser (1)
- DFB-Laser (1)
- DNA damage (1)
- DNA-Schädigung (1)
- DNS (1)
- DNS-Bindungsproteine (1)
- Damped Lyman alpha (1)
- Data Analysis (1)
- Data assimilation (1)
- Daten Analyse (1)
- Datenanalyse der Galaktischen Ebene (1)
- Dawn mission (1)
- Dawn-Mission (1)
- Debye screening (1)
- Decision Making under Ambiguity (1)
- Deep Learning (1)
- Deeper School Knowledge (1)
- Degradation of messenger RNA (1)
- Dehnung (1)
- Demografie des Schwarzen Lochs (1)
- Depolymerisation (1)
- Development of Content Knowledge (1)
- Dictyostelium (1)
- Dictyostelium cells (1)
- Dicytostelium (1)
- Dielectric Relaxation Spectroscopy (DRS) (1)
- Dielektrikum (1)
- Dielektrische Elastomeraktoren (1)
- Dielektrische Funktion (1)
- Dielektrische Nichtlinearitäten (1)
- Dielektrische Spektroskopie (1)
- Dielektrophorese (1)
- Differential Scanning Calorimetry (DSC) (1)
- Differentielle Rotation (1)
- Diffraktion (1)
- Diffuse Radiation (1)
- Diffuse Strahlung (1)
- Diffusion kosmischer Strahlung (1)
- Diffusioosmose (1)
- Diffusioosmosis (1)
- Diodenlaser (1)
- Dip-Dotierung (1)
- Disorder (1)
- Dispersion (1)
- Dispersionsrelationen (1)
- Dissertation (1)
- Domänen (1)
- Domänenwandbewegung (1)
- Donator-Akzeptor-Copolymere (1)
- Donor-Acceptor (DA) interface (1)
- Donor-acceptor copolymers (1)
- Doppelstern (1)
- Doppelsterne (1)
- Doppler Imaging (1)
- Doppler imaging (1)
- Dosimetrie (1)
- Dotierung (1)
- Drehimpulsverlust (1)
- Dronning Maud Land (1)
- Druckgradient (1)
- Dunkler Materie (1)
- Durchmusterung (1)
- Dwarf galaxies (1)
- Dynamical Systems (1)
- Dynamics (1)
- Dynamik der Atmosphäre (1)
- Dynamik in Netzwerken (1)
- Dynamische Modellierung (1)
- Dynamoeffekt (1)
- Dysprosium (1)
- Dünn film (1)
- Dünnschichten (1)
- Dünnung (1)
- ECIS (1)
- EDXRD (1)
- EEG (1)
- EOF (1)
- EULAG Model (1)
- Echo-State Netzwerk (1)
- Edit-Distanz (1)
- Effekt (1)
- Effizienz (1)
- Einbettung (1)
- Eindimensionaler Festkörper (1)
- Einfluß des Sonnenwindes und des interplanetaren magnetischen Feldes (1)
- Einschlagskrater (1)
- Einschlagssimulation (1)
- Einstein's field equations (1)
- Einsteins Feldgleichungen (1)
- Einzel-Objekt-Nachweis (1)
- Einzelmolekül-Biosensor (1)
- Einzelmolekülspektroskopie (1)
- Einzelzellanalyse (1)
- Eisbergkalbung (1)
- Eisbohrkern (1)
- Eisen (1)
- Eisenpentacarbonyl (1)
- Eisrinne (1)
- Eisschildmodellierung (1)
- El Niño (1)
- El Niño Phänomen (1)
- El Niño-Southern Oscillation (ENSO) (1)
- El Niño-Südliche Oszillation (1)
- El-Niño-Phänomen (1)
- Elastizität (1)
- Elastizitätstheorie (1)
- Electroactive material (1)
- Electromagnetic Theory (1)
- Electron acceleration (1)
- Electron transfer (1)
- Electronic and spintronic devices (1)
- Elektretfolie (1)
- Elektroaktive Materialien (1)
- Elektrolyte (1)
- Elektronen (1)
- Elektronen-Geschwindigkeitsverteilungen (1)
- Elektronenrückstreubeugung (1)
- Elektronische Eigenschaft (1)
- Elementarteilchen (1)
- Eliassen Palm Flux (1)
- Eliassen-Palm-Fluss (1)
- Emissionslinien-Galaxie (1)
- Emissionslinienklassifikation (1)
- Energie (1)
- Energieausbreitung (1)
- Energiebilanzmodell (1)
- Energiehaushalt (1)
- Energieschätzung (1)
- Ensemble-Simulation (1)
- Ensemblesimulationen (1)
- Entfernungen (1)
- Entstehung von Galaxien (1)
- Entwicklung von Galaxien (1)
- Epidemien (1)
- Erdbebenvorhersage (1)
- Erdsystem Modellierung (1)
- Escherichia-coli (1)
- Eta Carinae (1)
- European Arctic (1)
- Europäische Arktis (1)
- Evolution der Milchstraße (1)
- Evolutionen (1)
- Exoplanetenatmosphären (1)
- Experiment (1)
- Experimental Physics (1)
- Experimentalphysik (1)
- Experimente (1)
- Experimentierkompetenz (1)
- Experimentierzyklus (1)
- Extrasolare Planeten (1)
- Extremniederschläge (1)
- Exziton-Dissoziation (1)
- FARIMA (1)
- FELS (1)
- Fachwissen (1)
- Fachwissensentwicklung (1)
- Faltung von Proteinen (1)
- Faltungsdynamik (1)
- Faserkopplung (1)
- Feedback (1)
- Feedback control (1)
- Feld (1)
- Feld-Effekt-Transistoren (1)
- Femtosekundenlaser-Bearbeitungsmethode (1)
- Fensteransatz (1)
- Fermi (1)
- Fermi-LAT (1)
- Ferroelectrets (1)
- Ferroelectrics (1)
- Ferroelektrik (1)
- Ferroelektrische Polymere (1)
- Ferroelektrizität (1)
- Ferromagnetismus (1)
- Festkörperlaser (1)
- Festkörperphysik (1)
- Feuchtesensor (1)
- Fibre-fed spectroscopy (1)
- Filament-Bündel (1)
- Filaments (1)
- Finite Differenzen (1)
- Finsler geometry (1)
- Fixation (1)
- Flagellenbewegung (1)
- Flarephysik (1)
- Flares (1)
- Flooding probability (1)
- Flow (1)
- Flugzeug Lidar (1)
- Fluktuationen (1)
- Fluktuations-Dissipations-Theorem (1)
- Fluorescence fluctuation spectroscopy (1)
- Fluoreszenz-Mikroskopie (1)
- Fluoreszenzfluktuationsspektroskopie (1)
- Fluoreszenzmikroskopie (1)
- Fluoreszenzproteine (1)
- Fluorpolymere (1)
- Flüssigkristall (1)
- Flüssigkristalle (1)
- Fokalkontakt (1)
- Force Field Optimization (1)
- Forecasting (1)
- Formgleichungen von Vesikeln (1)
- Forschend Entdeckendes Lernen (1)
- Fortbildung (1)
- Fouriertransformation (1)
- Fractals (1)
- Fraktale (1)
- Free Electron Laser (1)
- Freie Elektronen Laser (1)
- Frequenzanalyse (1)
- Frequenzstabilisierung (1)
- Gadolinium (1)
- Galactic Archaeology (1)
- Galactic archaeology (1)
- Galactic plane data analysis (1)
- Galaktisches Zentrum (1)
- Galaxie: allgemein (1)
- Galaxien bei hoher Rotverschiebung (1)
- Galaxien: Evolution (1)
- Galaxien: Kinematik und Dynamik (1)
- Galaxien: Statistiken (1)
- Galaxienbalken (1)
- Galaxienbulges (1)
- Galaxiendynamik (1)
- Galaxienentstehung (1)
- Galaxienmorphologie (1)
- Galaxienphysik (1)
- Galaxienstruktur (1)
- Galaxienwechselwirkungen (1)
- Galaxies (1)
- Galaxy (1)
- Galaxy Interactions (1)
- Galaxy Morphology (1)
- Galaxy Struktur (1)
- Gamma-Strahlen (1)
- GammaLib/ctools (1)
- Gammastrahlen: allgemein (1)
- Geige (1)
- General Relativity (1)
- Generierung freier Ladungsträger (1)
- Genetik (1)
- Genetisches Programmieren (1)
- Genregulation (1)
- Geodynamo (1)
- Geomagnetic activity (1)
- Geomagnetische Aktivität (1)
- Gewebewachstum (1)
- Gezeitenwechselwirkungen (1)
- Gitter (1)
- Gittermodelle (1)
- Gitterstreuung (1)
- Global coupling (1)
- Gold-Nanopartikel (1)
- Goldsubstrat (1)
- Gradient Boosting (1)
- Grain-size distributions (1)
- Granular chain (1)
- Graphene (1)
- Graphentheorie (1)
- Gratings (1)
- Gravitation (1)
- Gravitational Wave (1)
- Gravitational Waves (1)
- Gravitationskollaps (1)
- Gravitationswellenastronomie (1)
- Grenzflächen (1)
- Grenzflächenrekombination (1)
- Gruppenfeldtheorie (1)
- Grönland (1)
- Habitabilität (1)
- Halbleiter / Kristallgitter / Verzerrung / Röntgenbeugung / Synchrotronstrahlung (1)
- Halo (1)
- Halo der Milchstraße (1)
- Halogenbindung (1)
- Halophile Proteine (1)
- Halophilic proteins (1)
- Hamilton (1)
- Hamiltonian (1)
- Helizität (1)
- Heterogenität (1)
- Heusler-Legierung (1)
- Heusler-alloy (1)
- Hilbert transform (1)
- Hilbert-Transformation (1)
- Histon-DNS-Komplex (1)
- Histone-DNA Complexes (1)
- Hochenergiephysik (1)
- Hochgeschwindigkeitswolken (1)
- Hochleistungscomputer (1)
- Hochvakuum (1)
- Hofmeister (1)
- Hohlraum-Quantenelektrodynamik (1)
- Hohlraumeffekte (1)
- Holocene (1)
- Holografie (1)
- Holographie (1)
- Holozän (1)
- Hong-Ou-Mandel effect (1)
- Hurst exponent (1)
- Hurst-Exponent (1)
- Hydrodynamischer Fluss (1)
- Hydrodynamisches Modell (1)
- Hydrolyse (1)
- Hydrophobic and hydrophillic interactions (1)
- Hyperschall (1)
- Hyperschall Propagation (1)
- Hyperschnellläufersterne (1)
- Hypothesis Test (1)
- ICLIPS (1)
- ICON (1)
- IGM (1)
- IMAGE EUV (1)
- ISM: Turbulence (1)
- ISM: Turbulenz (1)
- ISOS-L-1I protocol (1)
- Identifikation (1)
- Imprecise Probability (1)
- In-situ Rasterkraftmikroskopie (1)
- Inconel 718 (1)
- Indian summer monsoon (1)
- Indien (1)
- Indischer Sommer-Monsun (1)
- Information (1)
- Infrared spectroscopy (1)
- Infrarot (1)
- Infrarot Spektroskopie (1)
- Inlandeis (1)
- Inner magnetosphere (1)
- Innere Magnetosphäre (1)
- Instabilität (1)
- Instabilitäten (1)
- Instabiltät (1)
- Instrumente: Polarimeter (1)
- Instrumente: Spektrographen (1)
- Instrumentierung (1)
- Integrale Feldspektroskopie (1)
- Integralfeld-Spectroskopie (1)
- Integralfeld-Spektroskopie (1)
- Integralfeldspektroskopie (1)
- Interaktion (1)
- Interface-Engineering (1)
- Interferometer (1)
- Intermolecular deactivation (1)
- Intermolekulare Desaktivierung (1)
- Interstellar medium (1)
- Interstellare Materie (1)
- Interstellares Medium (1)
- Intervallwahrscheinlichkeit (1)
- Invariance (1)
- Invarianz (1)
- Inversanalyse (1)
- Ionenspezifisch (1)
- Ionenverteilungen (1)
- Ionic Self-Assembly (1)
- Ionisches Tensid (1)
- Ionosphere (1)
- Ionosphäre (1)
- Isomerisierung Kinetik (1)
- Isotroper schneller Modus Turbulenzen (1)
- Iterative Airborne Lidar Inversion (1)
- Iterative reconstruction (1)
- Jahreszeitenvorhersage (1)
- Janus Partikel (1)
- Janus colloids (1)
- Janus particle (1)
- Janus-Kolloid (1)
- Kalibrierung von Spektrografen (1)
- Kalman Filter (1)
- Kalman-Filter (1)
- Kapella (1)
- Kaskade (1)
- Kaskadenrate (1)
- Kegelförmige Geometrien (1)
- Keimbildung und Wachstum (1)
- Kern-Kollaps-Supernovae (1)
- Kinematik (1)
- Kinetics of photoisomerization (1)
- Kinetik (1)
- Kippelement (1)
- Kippkaskade (1)
- Kleine Magellansche Wolke (1)
- Kleinwinkelröntgenstreuung (1)
- Klima / Umweltschutz (1)
- Klimadaten (1)
- Klimafolgen (1)
- Klimafolgenforschung (1)
- Klimamodell (1)
- Klimamodell mittlerer Komplexität (1)
- Klimanetzwerke (1)
- Klimaphysik (1)
- Klimaprognose (1)
- Klimasensitivität (1)
- Klimavariabilität (1)
- Klimawirkungsfunktionen (1)
- Knickinstabilität (1)
- Knochen (1)
- Knospung (1)
- Kobalt (1)
- Kobalt-Dünnfilm (1)
- Kohlenstoff-Isotopen-Verhältnis (1)
- Kohlenstoffzyklus (1)
- Kohnen (1)
- Kohärenz (1)
- Kohärenz-Analyse (1)
- Kohärenztheorie (1)
- Kollisionsdynamik (1)
- Kolloid / Lösung (1)
- Kolloidphysik (1)
- Komplex (1)
- Komplexe Netzwerke (1)
- Komplexes Netzwerk (1)
- Kondensation (1)
- Konformationsselektion (1)
- Konjugierte Polymere (1)
- Konjugierten polyelektrolyt (1)
- Kontaktschichten (1)
- Kontrastwerte (1)
- Kontrolltheorie (1)
- Konvektion (1)
- Kopplung zwischen Magnetosphäre, Ionosphäre und Thermosphäre (1)
- Kopplungs-Analyse (1)
- Korngrößenverteilungen (1)
- Kosmischer Staub (1)
- Kosmologie: Beobachtungen (1)
- Kp index (1)
- Kp-Index (1)
- Kraftdipol (1)
- Kraftdipole (1)
- Kraftfeld Optimierung (1)
- Kraftmikroskopie (1)
- Kristallisation (1)
- Kristallstruktur (1)
- Kugelsternhaufen (1)
- Kupferphthalocyanin (1)
- Kuramoto Modell (1)
- Kuramoto Oscillators (1)
- Kuramoto-Oszillatore (1)
- Körperschall (1)
- Künstliche Intelligenz (1)
- L-Asterisk (1)
- LAEs (1)
- LDDO (1)
- LEED (1)
- LIGO (1)
- LLS (1)
- LOFAR (1)
- LSTM (1)
- Labialpfeife (1)
- Labradorsee ; Thermohaline Konvektion ; Stochastisches Modell (1)
- Ladungsgenerierung (1)
- Ladungsrekombination (1)
- Ladungsspeicherung (1)
- Ladungsspeicherung und -transport (1)
- Ladungsträger (1)
- Ladungsträgerdynamik (1)
- Ladungsträgerrekombination (1)
- Lakunen (1)
- Langevin equation (1)
- Langmuir (1)
- Langmuir monolayer (1)
- Large-scale Structure (1)
- Laser (1)
- Lasers (1)
- Last Glacial Maximum (1)
- Latent Semantic Analysis (1)
- Latente-Semantische-Analyse (1)
- Leerlaufspannung (1)
- Legierung (1)
- Lehrerfortbildung (1)
- Leistungsspektrum (1)
- Leitfähigkeit (1)
- Leitplankenansatz (1)
- Leitungsbandstruktur (1)
- Lernumgebung (1)
- Letztes Glaziales Maximum (1)
- Levy walks (1)
- Lewis acid doping (1)
- Lewis-Säure Dotierung (1)
- Licht-Materie-Wechselwirkung (1)
- Light-Matter Coupling (1)
- Line Suche (1)
- Lipide (1)
- Lipidmembran (1)
- Liquid crystal (1)
- Localization (1)
- Loop-Quantengravitation (1)
- Low Energy Electron Diffraction (1)
- Luftmassentransport (1)
- Lyapunov exponents (1)
- Lyapunov-Exponenten (1)
- Lyman Kontinuum (1)
- Lyman alpha (1)
- Lyman continuum (1)
- Lyman-Alpha-Emitter (1)
- Lyman-alpha emitters (1)
- Längschnitt (1)
- Lévy flights (1)
- Lévy walks (1)
- Lösung (1)
- Lösungsassemblierung (1)
- Lösungsmittelabhängigkeit (1)
- MBE (1)
- MHD ; Röntgenstrahlung ; Jets ; AGN ; Mikro-Quasare (1)
- MHD ; X-rays ; Jets ; AGN ; Microquasars (1)
- MHD-Simulationen (1)
- MHD-Simulations (1)
- MHD-equations (1)
- MOPA (1)
- MRI (1)
- Machine learning (1)
- Magnesiumoxid (1)
- Magnetfeld-Satellit (1)
- Magnetfelderzeugung (1)
- Magnetic field measurements (1)
- Magnetische Felder (1)
- Magnetische Feldmessungen (1)
- Magnetism (1)
- Magneto-Optik (1)
- Magnetoelastizität (1)
- Magnetohydrodynamics (1)
- Magnetokonvektion (1)
- Magnetometer-Kalibrierung (1)
- Magnetosomen-Ketten (1)
- Magnetostriktion (1)
- Major mergers (1)
- Makroökonomische Modellierung (1)
- Mannigfaltigkeiten (1)
- Markov process (1)
- Markov state models (1)
- Markov-Prozess (1)
- Markov-Prozesse (1)
- Markowketten (1)
- Mars (1)
- Massenaussterben (1)
- Massenbewegungen (1)
- Massenbewegungsgeschwindigkeiten (1)
- Massenverlust (1)
- Massereiche Sterne (1)
- Master-Gleichungen (1)
- Mastergleichung (1)
- Material (1)
- Materialeigenschaften (1)
- Materialeinflüsse (1)
- Mathematikdidaktik (1)
- Mathematisches Modell (1)
- Mean-field Theorie (1)
- Mechanische Eigenschaft (1)
- Mechanosensor (1)
- Mechanotransduktion (1)
- Meeresspiegel (1)
- Mehrfachstreuung (1)
- Mehrschichtsystem (1)
- Mehrschichtsysteme (1)
- Mehrstoffsystem (1)
- Membran-Adhäsionskräfte (1)
- Membranadhäsion (1)
- Membrane Fusion (1)
- Membrane fusion (1)
- Membranen (1)
- Membranröhrchen (1)
- Metal (1)
- Metal Halide Perovskites (1)
- Metal Halogenid Perowskiten (1)
- Metal-poor stars (1)
- Metall (1)
- Metall-Isolator-Halbleiter (1)
- Metall/Graphen/Polymer Grenzfläch (1)
- Metallarme Sterne (1)
- Metalle der seltenen Erden (1)
- Methoden: Datenauswertung (1)
- Methoden: analytisch (1)
- Methoden: numerisch (1)
- Methoden: statistisch (1)
- Meyer-Neldel-Regel (1)
- Meyer-Neldel-rule (1)
- Micelle (1)
- Micropipetten (1)
- Microschwimmer (1)
- Mikrogravitationslinseneffekt (1)
- Mikrokapsel (1)
- Mikrolensing (1)
- Mikrometeorologie (1)
- Mikrosakkaden (1)
- Mikroschwimmer (1)
- Mikroskopie (1)
- Milchstrasse (1)
- Milchstrassenmasse (1)
- Milky Way Halo (1)
- Milky Way chemo-kinematics (1)
- Milky Way chemodynamics (1)
- Milky Way formation (1)
- Min-Proteine (1)
- Min-proteins (1)
- Mineralisierung (1)
- Mischphasenwolken (1)
- Mischung (1)
- Mitteltemperaturübergang (1)
- Mixing (1)
- MoS₂ (1)
- Modal expansion method (1)
- Mode function (1)
- Modelierung (1)
- Modeling (1)
- Modell (1)
- Modellieren (1)
- Modellierung der internationalen Migration (1)
- Modellkopplung (1)
- Modellvalidierung (1)
- Moden Stabilität (1)
- Modenkopplung (1)
- Modenstabilität (1)
- Modifikationsphase (1)
- Molecular Aging (1)
- Molecular Beam Epitaxy (1)
- Molecular Dynamics Simulation (1)
- Molecular crowding (1)
- Molecular motors (1)
- Molekulardynamische Simulation (1)
- Molekulare Motoren (1)
- Molekulares Altern (1)
- Molekularstrahlepitaxie (1)
- Moleküldynamik (1)
- Molybdenum sulfide monolayer (1)
- Molybdänsulfid Monolagen (1)
- Monolage (1)
- Monoschichten (1)
- Monsun-Unterbrechungen (1)
- Monte Carlo (1)
- Monte Carlo simulation (1)
- Monte Carlo simulations (1)
- Monte-Carlo-Simulationen (1)
- Moran effect (1)
- Moran-Effekt (1)
- Morawetz estimate (1)
- Morawetz-Schätzung (1)
- Motility-Assay (1)
- Motorgeschwindigkeit (1)
- Motorik (1)
- Motorzyklus (1)
- Multi-Botenteilchen Astronomie (1)
- Multi-Spektrum-Regularisierung (1)
- Multi-object spectroscopy (1)
- Multilayers (1)
- Multimode fibres (1)
- Multiple Scattering (1)
- Multipolare Gravitationswellenformen (1)
- Multiproteinkomplexbildung (1)
- Multiskale (1)
- Multistability (1)
- Multistabilität (1)
- Multivariate Analyse (1)
- Multivariate Statistics (1)
- Multivariate Statistik (1)
- Musikinstrumente (1)
- Musterbildung (1)
- Musterskalierung (1)
- Muttergalaxien (1)
- N400 (1)
- NGC 2516 (1)
- NGC 3532 (1)
- NM (1)
- NMR (1)
- Nahfeldkosmologie (1)
- Nano-Elektroden (1)
- Nanofluid (1)
- Nanokomposite (1)
- Nanomaterialien (1)
- Nanoparticles (1)
- Nanofluid (1)
- Natural Language Processing (1)
- Near-field Cosmology (1)
- Neigungswinkel (1)
- Networks (1)
- Netzwerk (1)
- Netzwerk Inferenz (1)
- Netzwerk Rekonstruktion (1)
- Netzwerktheorie (1)
- Neural networks (1)
- Neuronal synchrony (1)
- Neuronale Netze (1)
- Neuronale Synchronisation (1)
- Neuronsreliabilität (1)
- Neutronendiffraktion (1)
- Neutronensterne (1)
- Neutronreflektometrie (1)
- Nicht-Isochronizität (1)
- Nicht-Langevin-Systeme (1)
- Nichtexponentieller Zerfall von mRNA (1)
- Nichtgleichgewichts-Phasenübergang (1)
- Nichtlinear angeregte Fluoreszenz (1)
- Nichtlineare Mikroskopie (1)
- Nichtlineare Optik (1)
- Nichtlineare Systeme (1)
- Nichtlineare Wellen (1)
- Nichtlineare Zeitreihenanalyse ; Signalanalyse - Polbewegung ; Chandler-Periode ; Nichtlineares Phänomen (1)
- Nichtlineares dynamisches System / Harmonische Analyse / Fraktal (1)
- Noise (1)
- Noisy oscillators (1)
- Non-Langevin systems (1)
- Non-exponential mRNA decay (1)
- Non-fullerene acceptors (1)
- Non-thermal radiation sources (1)
- Nonisochronicity (1)
- Nonlinear dynamics (1)
- Nonlinear waves (1)
- Nordatlantik (1)
- North Atlantic (1)
- Nucleation (1)
- Nukleobasen (1)
- Numerische Relativitätstheorie (1)
- Numerisches Verfahren (1)
- OB-Sterne (1)
- OB-type stars (1)
- OGLE (1)
- OLEDs (1)
- Oberflächenassemblierung (1)
- Oberflächenemissivität (1)
- Oberflächenfluss (1)
- Oberflächenphysik (1)
- Oberflächenstrukturen (1)
- Oberflächenzustände (1)
- On-Sky-Tests (1)
- Optimierung (1)
- Opto-mechanische Spannungen (1)
- Orbitalanalyse (1)
- Organic Semiconductors (1)
- Organic Solar Cell (1)
- Organic solar cells (1)
- Organische Halbleiter (1)
- Orgelpfeifen (1)
- Orion A giant molecular cloud (1)
- Ornstein-Uhlenbeck Process (1)
- Ornstein-Uhlenbeck Prozess (1)
- Ornstein–Uhlenbeck process (1)
- Ortsauflösende Spektrofotometrie (1)
- Oscillation (1)
- Oscillators (1)
- Ott–Antonsen equation (1)
- Oxadiazolderivate ; Kristallstruktur ; Hochdruck ; UV-VIS-Spektroskopie ; Raman-Spektroskopie (1)
- Ozeanmodell (1)
- Ozonzabbau (1)
- P (1)
- P hasensynchronisierung (1)
- P300 (1)
- PAN (1)
- PBH (1)
- PBP10 (1)
- PEDOT (1)
- PIC simulation (1)
- PIP3 waves (1)
- PLANET (1)
- PPV (1)
- PSF Analyse (1)
- PSF fitting (1)
- PVDF-based polymers (1)
- Palaeoclimatology (1)
- Paleoclimatology (1)
- Paleoklimatologie (1)
- Paläoklima (1)
- Parametrisierung (1)
- Particle-in-Cell Simulationen (1)
- Partikel (1)
- Partikeltransport (1)
- Pekuliargeschwindigkeiten (1)
- Peptid-Membran-Wechselwirkung (1)
- Perceived Relevance (1)
- Percolation (1)
- Perkolation (1)
- Perovskite solar cell (1)
- Perovskites (1)
- Perowskit-Oxide (1)
- Persistenzlänge (1)
- Pflanzenwachstum (1)
- Phase Diffusion (1)
- Phase Synchronization (1)
- Phase transitions (1)
- Phase-Analysis (1)
- Phasen Oszillatoren (1)
- Phasen-Amplituden Trennung (1)
- Phasen-Analyse (1)
- Phasen-Gleichungen (1)
- Phasen-Oszillatoren (1)
- Phasendemodulation (1)
- Phasendiffusion (1)
- Phasendynamik (1)
- Phasengleichverteilung (1)
- Phasenkopplung (1)
- Phasenkopplungen höherer Ordnung (1)
- Phasenoszillatoren (1)
- Phasenraumdichte (1)
- Phasenregel (1)
- Phasenspektrum (1)
- Phasentrennung (1)
- Phenomenology (1)
- Philosophy of Science (1)
- Phonon-Polariton (1)
- Phononen Dynamik (1)
- Phononen Dämpfung (1)
- Phononen Rückfaltung (1)
- Phononenstreuung (1)
- Phonons (1)
- Photochemistry (1)
- Photodissoziation (1)
- Photoelektronen (1)
- Photoelektronenmikroskopie (1)
- Photoelektronenmikroskopie (PEEM) (1)
- Photogeneration (1)
- Photonic Crystals (1)
- Photonische Kristalle (1)
- Photonischer Kristall (1)
- Photophysik (1)
- Photopolymer (1)
- Photorefractive polymers (1)
- Photorefraktive Polymere (1)
- Photostrukturierung von Polymerfilmen (1)
- Photovoltaics (1)
- Physics Problems (1)
- Physik der Musikinstrumente (1)
- Physik der weichen Materie (1)
- Physik schwarzer Löcher (1)
- Physikaufgaben (1)
- Phänomenologie (1)
- Phänotypische Heterogenität (1)
- Piezo-, Pyro-und Ferroelektrizität (1)
- Piezoelektrische Sensoren (1)
- Pikosekundenakustik (1)
- Planetare Ringe (1)
- Planetarische Nebel (1)
- Planetary Rings (1)
- Planeten (1)
- Plasma instability (1)
- Plasmainstabilität (1)
- Plasmasphere (1)
- Plasmasphäre (1)
- Plasmonen (1)
- Plasmonics (1)
- Plasmonik (1)
- Plasmons (1)
- Point Process (1)
- Polar 5 (1)
- Polar ozone (1)
- Polar vortex (1)
- Polarforschung (1)
- Polarisation (1)
- Polarisationsverteilung (1)
- Polarization distribution (1)
- Polartief (1)
- Polarwirbel (1)
- Polbewegung (1)
- Poly(vinylidenfluorid) (1)
- Poly-DADMAC (1)
- Polydispersität (1)
- Polyelectrolyte Complexes (1)
- Polyelektrolytkomplexe (1)
- Polyethylen-Nanokomposite (1)
- Polymer (1)
- Polymer Electronics (1)
- Polymer solar cells (1)
- Polymer-Halbleiter (1)
- Polymer-Kristalle (1)
- Polymer-Plastik (1)
- Polymer-Solarzelle (1)
- Polymeraggregation (1)
- Polymerbürsten (1)
- Polymere / Physik (1)
- Polymere auf PVDF-Basis (1)
- Polymerelektrete (1)
- Polymerelektronik (1)
- Polymerfilm (1)
- Polymerphysik (1)
- Polymers (1)
- Polymerschaum (1)
- Polypyrrol (1)
- Polyrhythmen (1)
- Polystyrol Nano-Sphären (1)
- Polysulfobetain (1)
- Polythiophen (1)
- Populationen (1)
- Populations (1)
- Populationsdynamik (1)
- Porositätsanalyse (1)
- Porous silica particles (1)
- Porphyrine (1)
- Porphyrins (1)
- Post-AGB-Sterne (1)
- Post-Newton (1)
- Post-transcriptional gene regulation (1)
- Posttranskriptionale Genregulation (1)
- Potsdam / Potsdam-Institut für Klimafolgenforschung (1)
- Pre-Service (1)
- Precursor (1)
- Primordiale Schwarzen Löchern (1)
- Probabilistic Seismic Hazard and Risk Assessment (1)
- Professionalisierung (1)
- Projektionen (1)
- Propeller (1)
- Protein Multilayer (1)
- Protein-Protein-Interaktion (1)
- Proteine (1)
- Proteinfaltung (1)
- Proteinkinetik (1)
- Protonierung (1)
- Protophase (1)
- Protostellar Jets and outflows (1)
- Proximity-Effekt (1)
- Proxyunsicherheit (1)
- Proxyverständnis (1)
- Präkonzepte (1)
- Präparation fester Komplexe (1)
- Prästabilisierung (1)
- Pseudobeobachtungen (1)
- Pseudodatensätze (1)
- Pseudomonas aeruginosa (1)
- Pseudomonas putida (1)
- Pulszugformung (1)
- Pulverpartikelanalyse (1)
- Pump-Probe Spektroskopie (1)
- Punktdefekt (1)
- Pupil Remapper (1)
- Pyridone (1)
- Pyridones (1)
- QPM (1)
- QtClassify (1)
- Quanten Optomechanik (1)
- Quanten-Elektrodynamik (QED) (1)
- Quantencomputer (1)
- Quantendegeneriert BEK FDS ultrakalte Atome (1)
- Quantenelektrodynamik (1)
- Quantenfluktuationen (1)
- Quantenwell (1)
- Quantum (1)
- Quantum Optics (1)
- Quantum Optomechanics (1)
- Quantum optics (1)
- Quasare: Absorptionslinien (1)
- Quasi-Kondensat (1)
- Quellen nichtthermischer Strahlung (1)
- Quintuplet cluster (1)
- R-PE (1)
- RAMAN spectroscopy (1)
- RAMAN-Spektroskopie (1)
- RAVE (1)
- RAVE Beobachtungskampagne (1)
- RAVE survey (1)
- REM (1)
- RIXS (resonant inelastic X-ray scattering) (1)
- RIXS (resonante inelastische Röntgenstreuung) (1)
- Radiation protection (1)
- Radiation transfer model (1)
- Radioburst (1)
- Radiosensitization (1)
- Raman (1)
- Raman Streuung (1)
- Raman scattering (1)
- Random Environments (1)
- Random Walk (1)
- Random Walks (1)
- Random-Walk-Theorie (1)
- Rapid thinning (1)
- Rasterkraftmikroskopie (1)
- Rauheit (1)
- Raumladungsfeld (1)
- Rauschinduzierte Anregbarkeit (1)
- Rauschinduzierte Oszillatonsunte (1)
- Recurrence Plot (1)
- Recurrence Plots (1)
- Recurrence-Plot (1)
- Reduced-Form Modeling (1)
- Referendariat (1)
- Reflection (1)
- Reflection Skills (1)
- Reflexionskompetenz (1)
- Reflexivity (1)
- Regelung (1)
- Regge Kalkül (1)
- Regularisierung (1)
- Reibungskoeffizient (1)
- Reionisation (1)
- Reionisierung (1)
- Rekombination (1)
- Rekurrenz (1)
- Rekurrenzdarstellung (1)
- Rekurrenzen (1)
- Rekurrenzplot (1)
- Relativistische Astrophysik (1)
- Relaxor-ferroelektrische Polymere (1)
- Reliability of Neurons (1)
- Remagnetisierung (1)
- Remote Sensing (1)
- Renormierung (1)
- Repertory Grid (1)
- Residual circulation (1)
- Resolved and unresolved sources as a function of wavelength (1)
- Resonanzfluoreszenz (1)
- Resonator (1)
- Resonator Quantenelektrodynamik (1)
- Responsive Polymere (1)
- Retrieval (1)
- Reversal (1)
- Rezeptor (1)
- Rheasilvia (1)
- Richardson Superdiffusion (1)
- Richardson-Superdiffusion (1)
- Ring (1)
- Ringe (1)
- Ringstrom (1)
- Ringstromelektronen (1)
- Risserkennung (1)
- Roberts flow (1)
- Roberts-Strömung (1)
- Robotik (1)
- Roche (1)
- Roche Limit (1)
- Rohr (1)
- Rohrresonator (1)
- Rollende Adhäsion (1)
- Rotation (1)
- Rotationsbeschichtung (1)
- Rotationskurven (1)
- Röntgen-Refraktions Bildgebung (1)
- Röntgenastronomie (1)
- Röntgenhintergrund (1)
- Röntgenstrahlen (1)
- Röntgenstrahlung (1)
- Rückkopplungskontrolle (1)
- SAXS (1)
- SEGUE Beobachtungskampagne (1)
- SEGUE survey (1)
- SEM (1)
- SFG (1)
- SN 1572 (1)
- SPMs (1)
- Sakkadendetektion (1)
- Sammelband (1)
- Saturn<Planet> (1)
- Schadstofftransport (1)
- Schallabstrahlung (1)
- Schatten eines Schwarzen Lochs (1)
- Schaum (1)
- Schaumbildung (1)
- Schaumstabilität (1)
- Scheibe (1)
- Scheibengalaxien (1)
- Schlecht gestelltes Problem (1)
- Schleifenschließung (1)
- Schnellläufersterne (1)
- Schwarzes Loch (1)
- Schwimmende Mikroorganismen (1)
- Schwingungsspektroskopie (1)
- Schwingungstilger (1)
- Schäume (1)
- Schülervorstellungen (1)
- Science Curriculum (1)
- Seasonal prediction (1)
- Seismizität (1)
- Selbstorganisierte Kritizität (1)
- Selbstähnlichkeit (1)
- Selection-Linked Integration (1)
- Selektiver Bindungsbruch (1)
- Semiconductors (1)
- Sensor (1)
- Shape equations of vesicles (1)
- Shock waves (1)
- Shockley-Queisser model (1)
- Signal transfer chain (1)
- Significance Testing (1)
- Signifikanztests (1)
- Simulations (1)
- Single-mode-Faser (1)
- Sintern (1)
- Skalengesetze (1)
- Skyrmionen (1)
- Skyrmions (1)
- Slums (1)
- Small Magellanic Cloud (1)
- Smartphone (1)
- Soft condensed matter (1)
- Solar Physics (1)
- Soliton (1)
- Sonne: Oszillationen (1)
- Sonne: Sonnenflecken (1)
- Sonnenaktivität (1)
- Sonnenphysik (1)
- Sorption (1)
- South Asian summer monsoon (1)
- Speicheranwendungen (1)
- Spektralanalyse (1)
- Spektralanalyse <Stochastik> (1)
- Spektrographen (1)
- Spin Textur (1)
- Spin casting (1)
- Spin- und winkelaufgelöste Photoemission (1)
- Spin-Schaum-Modelle (1)
- Spinpolarisation (1)
- Spinstruktur (1)
- Spinwellen (1)
- Spiralgalaxien (1)
- Spiralgalaxien: Magnetfelder (1)
- Sprachverarbeitung (1)
- Spreading (1)
- Sputum (1)
- Späte Sterne (1)
- Stabilität (1)
- Star formation (1)
- Staus (1)
- Stellar Populations (1)
- Stellar evolution (1)
- Stellar physics (1)
- Stellardynamik (1)
- Stellare Aktivität (1)
- Stellare Populationen (1)
- Stellarphysik (1)
- Stern-Brauner Zwerg Systeme (1)
- Stern-Planet Systeme (1)
- Stern-Planeten-Wechselwirkung (1)
- Sterndynamik (1)
- Sterne: Entfernungen (1)
- Sternenentwicklung (1)
- Sternenpopulationen (1)
- Sternfeedback (1)
- Sternflecken (1)
- Sternhaufen (1)
- Sternoberfläche (1)
- Sternpopulationen (1)
- Sternwind (1)
- Stickstoff (1)
- Stimulierte Brillouin Streuung (1)
- Stochastic dynamical systems (1)
- Stochastic gene expression (1)
- Stochastics (1)
- Stochastik (1)
- Stochastische Differentialgleichung (1)
- Stochastische Genexpression (1)
- Stochastische Gross-Pitaevskii Gleichung (1)
- Stochastische Oszillationen (1)
- Stochastische dynamische Systeme (1)
- Stochastisches Bursting (1)
- Stochastisches dynamisches System (1)
- Stokesion Dynamics (1)
- Stokessche Dynamik (1)
- Stoßwellen (1)
- Strahlenarten (1)
- Strahlenbelastung (1)
- Strahlenbiologie (1)
- Strahlenschutz (1)
- Strahlung Mechanismen (1)
- Strahlungstransportmodell (1)
- Strahlungtransportmodellierung (1)
- Stratosphere-troposphere coupling (1)
- Stratospheric polar vortex (1)
- Stratosphäre (1)
- Stratosphären-Troposphären-Kopplung (1)
- Stratosphärenchemie (1)
- Stratosphärendynamik (1)
- Stratosphärischer Polarwirbel (1)
- Streuresonanzen (1)
- Streuung von Schallwellen (1)
- Structural and energetic disorder (1)
- Struktur-Eigenschafts-Beziehungen (1)
- Strukturdynamik (1)
- Strukturelle und energetische Unordnung (1)
- Stäbchen (1)
- Städte (1)
- Stärkemetabolismus (1)
- Summenfrequenzspektroskopie (1)
- Sun (1)
- Sun: oszillations (1)
- Sun: sunspots (1)
- Supernova-Überrest (1)
- Supernovae (1)
- Surface Relief Grating (SRG) (1)
- Surface characterization (1)
- Surrogates (1)
- Surrogatmethode (1)
- Svalbard (1)
- Symbolische Regression (1)
- Synchronisationsanalyse (1)
- Synchrony (1)
- Synthese (1)
- System (1)
- Südasiatischen Sommermonsun (1)
- THz Spectroscopy (1)
- THz Spektroskopie (1)
- TSL (1)
- Tachocline (1)
- Tachokline (1)
- Tagung (1)
- Tandem-Solarzelle (1)
- Tau-Protein (1)
- Tauziehen (1)
- Taylor-Couette (1)
- Teacher Education (1)
- Techniken der optischen Spektroskopie: IR-Absorption (1)
- Teilchenphysik (1)
- Telekonnexionsmuster (1)
- Teleskop (1)
- Temperaturproxy (1)
- Tensid (1)
- Tensidlösung (1)
- Tensidschaum (1)
- Tensor-Zerlegungen (1)
- Terrasse ... (1)
- Testentwicklung (1)
- Teukolsky Gleichung (1)
- Teukolsky equations (1)
- Teukolsky master equation (1)
- Teukolsky-Gleichungen (1)
- Textur (1)
- Theiler surrogates (1)
- Theiler-Surrogate (1)
- Themisch-Stimulierte Lumineszenz (1)
- Theoretical ecology (1)
- Theoretische Ökologie (1)
- Thermal effects (1)
- Thermal-Pulse Tomography (1)
- Thermalisierung (1)
- Thermally stimulated luminescence (1)
- Thermoakustik (1)
- Thermodynamic properties (1)
- Thermoelektrizität (1)
- Thermohaline Atlantikzirkulation (1)
- Thermohaline Circulation (1)
- Thermohaline Zi (1)
- Thermohaline Zirkulation (1)
- Thermophon (1)
- Thermosphäre hoher Breiten (1)
- Thin Film (1)
- Thin film (1)
- Thin films (1)
- Time Series Analysis (1)
- Titandioxid (1)
- Tomographie (1)
- Topological Crystalline Insulator (1)
- Topological Insulator (1)
- Topologischer Isolator (1)
- Topologischer kristalliner Isolator (1)
- Trajectory model (1)
- Trajektorien (1)
- Trajektorienmodell (1)
- Transiente Absorption (1)
- Transmissionselektronenmikroskopie (1)
- Transmissionsspektroskopie (1)
- Transport (1)
- Transport- und Wechselwirkungsphase (1)
- Trapping (1)
- Turbulenzmessung (1)
- Turbulenzparametrisierungen (1)
- Two-stream Lidar Inversion (1)
- Typ III (1)
- Type I AGN (1)
- Type II AGN (1)
- UV-Vis Spektroskopie (1)
- UV-Vis spectroscopy (1)
- Ultrafast (1)
- Ultraschnell (1)
- Ultraschnelle Dynamik (1)
- Ultraschnelle Röntgenbeugung (1)
- Umweltsysteme (1)
- Uncertainty (1)
- Understanding (1)
- Unordnung (1)
- Unruh effect (1)
- Unruh-Effekt (1)
- Unschärfe (1)
- Unsicherheit (1)
- Unstetiges Galerkin-Verfahren (1)
- Unterkühlung (1)
- Unterrichtsanalyse (1)
- Unterrichtsvorschläge (1)
- Upper Atmosphere Model (UAM) (1)
- Upper Limit (1)
- Urbanisierung (1)
- VERITAS (1)
- VIRTIS (1)
- VLT/MUSE (1)
- Vacuum fields (1)
- Vacuum interaction (1)
- Vakuumschwankungen (1)
- Vakuumwechselwirkung (1)
- Validation (1)
- Validierung (1)
- Van der Waals Kräfte (1)
- Van der Waals forces (1)
- Vapour Deposition (1)
- Variabilität (1)
- Vegetation (1)
- Veneneia (1)
- Venus Express (1)
- Verbindungspfade zwischen der Arktis und den mittleren Breiten (1)
- Verfeinerungslimes (1)
- Verhältnis der Struktur und Funktion (1)
- Vermischung (1)
- Verschränkung (1)
- Verstehen (1)
- Verständnisentwicklungsmodell (1)
- Verteilung (1)
- Verteilungen von lokalisierten Zustände (1)
- Vesikeln (1)
- Vesiklen (1)
- Vesta (1)
- Vielteilchentheorie (1)
- Vier-Wellen-Mischung (1)
- Virgo (1)
- Virus (1)
- Viskosität (1)
- Vorhersagbarkeit (1)
- Vorhersage (1)
- Vorstellungen (1)
- Wachstum (1)
- Wasserstoffionenkonzentration (1)
- Wavelet Coherence (1)
- Wavelet-Analyse (1)
- Wechselwirkung (1)
- Weichröntgenbeugung (1)
- Weißlichterzeugung (1)
- Wellen (1)
- Wellen-Teilchen Wechselwirkungen (1)
- Wellengleichung (1)
- Wellenlängenverschiebung (1)
- Weltraumphysik (1)
- Wetterextreme (1)
- Whistler-Wellen (1)
- Wiederkehrdarstellung (1)
- Wiederkehrverhalten (1)
- Wigner Funktion (1)
- Wigner negativity (1)
- William Herschel Teleskop (1)
- William Herschel telescope (1)
- Windblase (1)
- Wiskostatin (1)
- Wismut (1)
- Wolf-Rayet (1)
- Wolf-Rayet Sterne (1)
- Wolf-Rayet-Sterne (1)
- Wolken (1)
- Wort-n-Gramme-Wahrscheinlichkeit (1)
- Wärmefluss (1)
- Wärmeinsel (1)
- Wärmekapazität (1)
- Wärmeleitfähigkeit von Schnee (1)
- Wärmepuls-Tomographie (1)
- Wärmetransport (1)
- X-ray absorption (1)
- X-ray astronomy (1)
- X-ray background (1)
- X-ray emission (1)
- X-ray magnetic circular dichroism (XMCD) (1)
- X-ray photoelectron spectroscopy (1)
- X-ray probe (1)
- X-ray refraction imaging (1)
- X-ray spectroscopy (1)
- X-rays (1)
- X-rays Photoemission Spectroscopy (1)
- XMCD (1)
- XPS (1)
- Zeitwahrnehmung (1)
- Zell Bewegung (1)
- Zell-substrat Adhäsion (1)
- Zell-zell Adhäsion (1)
- Zellimmobilisierung (1)
- Zellmembranen (1)
- Zellmotilität (1)
- Zellorganisation (1)
- Zellulärmaterialien (1)
- Zentralsterne (1)
- Zirkulardichroismus (1)
- Zirkulationsregime (1)
- Zirruswolken (1)
- Zufällige Stochastische Irrfahrt (1)
- Zufällige Umgebungen (1)
- Zustandsgleichung (1)
- Zustandsmodell (1)
- Zustandsraumrekonstruktion/Phasenraumrekonstruktion (1)
- Zwangsgleichungen (1)
- Zwerg Galaxien (1)
- Zyklone (1)
- Zyklus (1)
- Zytoskelett (1)
- abrupte Übergänge (1)
- accretion (1)
- accretion disks (1)
- acoustic fluidization (1)
- acoustic waveguide (1)
- acoustic waves (1)
- acoustics (1)
- actin (1)
- actin cytoskeleton (1)
- actin filaments (1)
- actin polymerization (1)
- activator–inhibitor models (1)
- active processes (1)
- active transport (1)
- activity (1)
- actomyosin (1)
- actuating materials (1)
- actuation (1)
- adaptive Optik (1)
- adaptive optics (1)
- adhesion cluster (1)
- aerosol: hygroscopic growth (1)
- aerosol: hygroskopisches Wachstum (1)
- aerosol: optical properties (1)
- aerosol: optische Eigenschaften (1)
- aerosols (1)
- ageing (1)
- air mass transport (1)
- aktive Galaxienkerne (1)
- aktive Prozesse (1)
- aktive galaktische Kerne (1)
- aktiven Transport (1)
- akustische Fluidisierung (1)
- akustische Wellen (1)
- algorithms (1)
- all-optical helicity dependent switching (1)
- alloy (1)
- alpha (1)
- alpha-effect (1)
- alternative electron acceptors (1)
- aminothiophenol (1)
- amoeboid motion (1)
- amp (1)
- amphiphiles (1)
- amöboide Bewegung (1)
- anchored polymer (1)
- angle resolved photoelectron spectroscopy (1)
- angular momentum loss (1)
- anomale Diffusion (1)
- anthropogener Meeresspiegel (1)
- anthropogenic sea level (1)
- antibiotic resistance (1)
- antiferromagnetic (1)
- antiferromagnetism (1)
- antimicrobial peptides (1)
- approximate inertial manifolds (1)
- approximate methods (1)
- architectured materials (1)
- arktische Atmosphäre (1)
- arktische Grenzschicht (1)
- arktischer Dunst (1)
- arktisches Aerosol (1)
- artificial intelligence (1)
- aspect ratio (1)
- assembly (1)
- asteroids (1)
- asteroseismology (1)
- astro-particle physics (1)
- astrobiology (1)
- astrometry (1)
- astronomical instrumentation (1)
- astronomische Instrumente (1)
- astroparticle (1)
- astrophysical plasmas (1)
- astrophysical shocks (1)
- astrophysikalische Schocks (1)
- atmospheric boundary layer (1)
- atmospheric characterization (1)
- atmospheric dynamics (1)
- atmospheric effects (1)
- atmospheric science (1)
- atmosphärische Effekte (1)
- atmosphärische Grenzschicht (1)
- atom chips (1)
- atom optics (1)
- atom-surface interaction (1)
- atomic force microscopy (1)
- atomic force microscopy (AFM) (1)
- atomic-force; nano-objects (1)
- attractive interaction (1)
- attraktive Wechselwirkung (1)
- attribution (1)
- autocorrelation (1)
- autoregressive models (1)
- avidin (1)
- azobenzene containing molecules (1)
- azobenzene containing polymer films (1)
- azobenzene elastomers (1)
- azobenzene polymer (1)
- azobenzene polymer films (1)
- azobenzene refractive index (1)
- azobenzenhaltige Polymere (1)
- azobenzolhaltige Tenside (1)
- band profile (1)
- bandgap (1)
- baroclinic instability (1)
- bedeuten freie Bahn (1)
- behavior (1)
- bidirectional intracellular transport (1)
- bidirektionaler intrazellulärer Transport (1)
- bifurcation analysis (1)
- bifurcation theory (1)
- binaries (1)
- binaries: spectroscopic (1)
- binding interactions (1)
- binäre Schwarze Löcher (1)
- binäre schwarze Löcher (1)
- bio-hybrid (1)
- bio-hybrid system (1)
- biofilms (1)
- biological physics (1)
- biomechanics (1)
- biomolecule (1)
- birefringence (1)
- bismuth (1)
- black hole (1)
- black hole demographics (1)
- black hole physics (1)
- black hole shadows (1)
- black-holes (1)
- blazar (1)
- blended learning (1)
- block copolymers (1)
- bond (1)
- bone (1)
- bose gas (1)
- bow shocks (1)
- breitbandige Lichtquelle (1)
- broadband light source (1)
- bubble domains (1)
- buckling (1)
- budding (1)
- budget study (1)
- bulge (1)
- cGMP (1)
- cambridge cb4 0wf (1)
- cambs (1)
- carbon (1)
- carbon fiber manufacture (1)
- carbon-dioxide emissions (1)
- carbon-isotope-ratio (1)
- carrier dynamic (1)
- cascade (1)
- cascade rate (1)
- catalysis (1)
- catalytic azobenzene isomerization (1)
- cavity effects (1)
- cell immobilization (1)
- cell motility (1)
- cell movement (1)
- cell organization (1)
- cell tracking (1)
- cell-substrate adhesion (1)
- cellular materials (1)
- central stars (1)
- cepstrum (1)
- cesium lead halides (1)
- chains (1)
- channel (1)
- chaotic (1)
- chaotic neural dynamics (1)
- chaotic oscillations (1)
- chaotic saddle (1)
- chaotisch (1)
- charge carrier recombination (1)
- charge generation (1)
- charge profiling (1)
- charge storage and transport (1)
- charge trap (1)
- charge-dipole interaction (1)
- charge-transfer (1)
- charged systems (1)
- chemically induced dislocation (1)
- chemisch-induzierte Dislokation (1)
- chemische Gasphasenabscheidung (1)
- chemische Häufigkeiten (1)
- chemische Oberflächen-Modifikationen (1)
- chemistry (1)
- chemistry-transport-model (1)
- chemoattractant (1)
- chemotaxsis (1)
- chimera (1)
- chimera Zustände (1)
- chimera state (1)
- chromium hexacarbonyl (1)
- chromophore orientations (1)
- chromospheric activity (1)
- chromospherische Aktivität (1)
- circular dichroism (1)
- circulation (1)
- circulation regimes (1)
- circumgalactic medium (1)
- cirrus clouds (1)
- cities (1)
- climate data (1)
- climate impact research (1)
- climate impact response func (1)
- climate impacts (1)
- climate model (1)
- climate model of intermediate complexity (1)
- climate networks (1)
- climate physics (1)
- climate projection (1)
- climate sensitivity (1)
- climate trends (1)
- climate variability (1)
- climatology (1)
- clouds (1)
- cluster analysis (1)
- cluster-analysis (1)
- clustering (1)
- clusters of galaxies (1)
- co-monomer content (1)
- co-translational (1)
- co-translationale Assemblierung (1)
- co2 emissions (1)
- cobalt (1)
- codifference (1)
- coefficient (1)
- coefficient of friction (1)
- coefficients (1)
- coherence (1)
- coherence theory (1)
- coherent phonons (1)
- collapse (1)
- collimation (1)
- collision dynamics (1)
- colloids (1)
- color change (1)
- combustion (1)
- complementarity (1)
- complex (1)
- complex brain networks (1)
- complex network (1)
- complexity (1)
- compression (1)
- conceptions (1)
- condensed matter (1)
- conductivity (1)
- confinement (1)
- conformational selection (1)
- conical intersection (1)
- conjugated polyelectrolyte (1)
- conjugated polymers (1)
- consequences (1)
- constraint equations (1)
- construct map (1)
- contact layers (1)
- contaminant transport (1)
- content analysis (1)
- continuation (1)
- continuous time random walk (1)
- control (1)
- cool stars (1)
- cooperative transport (1)
- coronal currents (1)
- cortical network models (1)
- cortical networks (1)
- cortical oscillations (1)
- cosmic ray diffusion (1)
- cosmic ray dynamo (1)
- cosmic ray propagation (1)
- cosmic-rays (1)
- cosmology: observations (1)
- costs (1)
- coupled (1)
- coupled rotators (1)
- coupling sensitivity (1)
- crack detection (1)
- critical avalanche dynamics (1)
- critical collapse (1)
- critical exponent (1)
- critical fluctuations (1)
- critical phenomena (1)
- cross recurrence plot (1)
- cryptography (1)
- crystal orientation (1)
- crystal structure (1)
- curved radial ridges (1)
- cycle (1)
- cycle-averaged tilt angle (1)
- cyclic-gmp (1)
- cyclic-olefin copolymer (1)
- cyclones (1)
- cylindrical geometry (1)
- dark exciton (1)
- decadal climate variability (1)
- deep learning (1)
- dekadische Klimavariabilität (1)
- delayed random walks (1)
- density (1)
- depolymerization (1)
- design concepts (1)
- development of test instrument (1)
- dictyostelium-discoideum (1)
- dicytostelium (1)
- dielectric elastomers (1)
- dielectric function (1)
- dielectric non-linearities (1)
- dielectric spectroskopie (1)
- dielectrics (1)
- dielectrophoresis (1)
- dielektrische Elastomere (1)
- differential rotation (1)
- diffraction (1)
- diffraction efficiency (1)
- diffraction elastic constants (1)
- diffraktionselastische Konstanten (1)
- diffusing diffusivity (1)
- diffusioosmotic flow (1)
- diffusioosmotischer Fluss (1)
- diode-laser-arrays (1)
- diode-lasers (1)
- dip doping (1)
- disc (1)
- discontinuous Galerkin method (1)
- discontinuous Galerkin methods (1)
- discrete beam cominer (1)
- diselenide (1)
- diskreter Strahlkombinierer (1)
- disordered systems (1)
- dispersion (1)
- dispersion relations (1)
- dissertation (1)
- dissociative electron attachment (1)
- dissoziative Elektronen Anlagerung (1)
- distances (1)
- distribution (1)
- distributions of localised states (1)
- domain wall motion (1)
- domains (1)
- donor (1)
- dosis measurement (1)
- driving mechanism (1)
- droughts (1)
- drug tolerance (1)
- drug-delivery (1)
- dunkles Exziton (1)
- dustdynamic (1)
- dwarf spheroidal galaxies (1)
- dyna (1)
- dynamic and static quenching (1)
- dynamic forc (1)
- dynamic force spectroscopy (1)
- dynamic of the atmosphere (1)
- dynamic vibration absorber (1)
- dynamical patterns (1)
- dynamics on networks (1)
- dynamics simulation (1)
- dynamik (1)
- dynamische Klimatologie (1)
- dynamische Kraftspektroskopie (1)
- dynamische Muster (1)
- dynamische und statische Löschung (1)
- dynamo effect (1)
- dynamo theory (1)
- dysprosium (1)
- dünne Filme (1)
- dünne organische Schichten (1)
- dünne, flexible und formbare Schichten (1)
- earth system modeling (1)
- earthquake prediction (1)
- echo state network (1)
- ecology (1)
- economic network (1)
- edit distance (1)
- efficient scattering (1)
- effiziente Streuung (1)
- elastic coupling (1)
- elastic substrates (1)
- elasticity (1)
- elasticity theory (1)
- elastische Kopplung (1)
- elastische Substrate (1)
- elastomers (1)
- electric double layer (1)
- electrical chemotaxis assay (1)
- electrical insulation (1)
- electro-acoustic electric-charge and polarization profiling (1)
- electro-optical (1)
- electrolytes (1)
- electromagnetic counterparts (1)
- electromagnetic radiation (1)
- electromechanical response (1)
- electromechanical transducers (sensors and actuators) (1)
- electron acceleration (1)
- electron backscatter diffraction (1)
- electron velocity distributions (1)
- electron-transfer (1)
- electronic properties (1)
- electrons (1)
- electrostatic energy density (1)
- electrostatic interactions (1)
- elektrische Doppelschicht (1)
- elektrische Isolierung (1)
- elektrische Raumladung (1)
- elektrischer Chemotaxis Assy (1)
- elektro-optisch (1)
- elektroakustische Abtastung elektrischer Ladungen und Dipolpolarisationen (1)
- elektromagnetische Strahlung (1)
- elektromechanische Reaktion (1)
- elektromechanische Wandler (Sensoren und Aktoren) (1)
- elektronische Eigenschaften (1)
- elektrostatische Energiedichte (1)
- elemental sulphur (1)
- elementarer Schwefel (1)
- elementary particles (1)
- elliptic partial differential equations (1)
- elliptic systems (1)
- elliptische partielle Differentialgleichungen (1)
- elliptisches Gleichungssystem (1)
- embedding (1)
- emission line classification (1)
- emissions (1)
- empirical modeling (1)
- empirische Modellierung (1)
- ena/vasp proteins (1)
- encke (1)
- endliche Ensembles (1)
- energetic disorder (1)
- energetische Unordnung (1)
- energy balance model (1)
- energy budget (1)
- energy estimate (1)
- energy levels (1)
- energy spreading (1)
- energy use (1)
- england (1)
- enhanced raman-scattering (1)
- ensemble and time averaged mean squared displacement (1)
- ensemble simulation (1)
- ensemble simulations (1)
- entanglement (1)
- entropy production (1)
- environmental systems (1)
- enzymatic activity (1)
- enzymatische Reaktionen (1)
- epidemics (1)
- epitaktisch (1)
- epitaxial (1)
- equation approach (1)
- equation of state (1)
- erasure (1)
- eukaryotic chemotaxis (1)
- evolutions (1)
- excitable networks (1)
- excited-state chemical shift (1)
- exciton dissociation (1)
- excitonic materials (1)
- exoplanet atmospheres (1)
- expanding medium (1)
- experimental competencies (1)
- experimental model (1)
- exploit (1)
- external cavities (1)
- externe Resonatoren (1)
- extra-cellul (1)
- extragalactic physics (1)
- extragalactic stellar astronomy (1)
- extragalaktische Stellarastronomie (1)
- extrasolare Planeten (1)
- extrazelluläre Matr (1)
- extremal values (1)
- extreme precipitation (1)
- fastest first-passage time of N walkers (1)
- favela (1)
- feldlinengerichtete Ströme (1)
- ferroelectric polarization (1)
- ferroelectricity (1)
- ferroelektrische Polarisation (1)
- ferroelektrische Polymere (1)
- ferromagnetism (1)
- fest-flüssig Grenzfläche (1)
- fiber coupling (1)
- field (1)
- field aligned currents (1)
- filament bundles (1)
- fill factor losses (1)
- financial time series (1)
- finite differences (1)
- finite element method (1)
- finite size (1)
- finite-size effects (1)
- fired power plants (1)
- firn (1)
- first passage (1)
- first-hitting time (1)
- first-passage (1)
- first-passage time distribution (1)
- first-reaction time (1)
- fixational eye movements (1)
- fixierte Augenbewegungen (1)
- flagellar filaments (1)
- flagellum (1)
- flares (1)
- flexible (1)
- floods (1)
- fluctuating surfaces (1)
- fluctuation dissipation theorem (1)
- flue organ pipe (1)
- fluorescent proteins (1)
- fluorinated organic spacer (1)
- flussunterbrechende Analyse (1)
- flux (1)
- foam (1)
- foams (1)
- focal adhesion (1)
- folding dynamics (1)
- force dipole (1)
- force dipoles (1)
- forced symmetry breaking (1)
- four-wave mixing (1)
- fourier transformation (1)
- fractional Gaussian noise (1)
- fractional dynamics (1)
- fraktionale Brown'schen Bewegung (1)
- fraktionales Gauß'sches Rauschen (1)
- free charge generation (1)
- free charge recombination (1)
- free electron laser (1)
- free-electron laser (1)
- freie Ladungsträger Rekombination (1)
- frequency analysis (1)
- frequency conversion (1)
- frequency stabilisation (1)
- fundamental parameters (1)
- fundamentale Parameter (1)
- gadolinium (1)
- galactic centre (1)
- galactic magnetic fields (1)
- galactic population (1)
- galactic structure (1)
- galaktische Astronomie (1)
- galaktische Astrophysik (1)
- galaktische Magnetfelder (1)
- galaktische Population (1)
- galaxies: evolution (1)
- galaxies: high-redshift (1)
- galaxies: kinematics and dynamics (1)
- galaxies: statistics (1)
- galaxy (1)
- galaxy bars (1)
- galaxy bulges (1)
- galaxy clusters (1)
- galaxy dynamics (1)
- galaxy: general (1)
- gamma astronomy (1)
- gamma rays: general (1)
- gamma-ray (1)
- gamma-rays: general (1)
- gammalib/ctools (1)
- gas (1)
- gas phase electron spectroscopy (1)
- gefangene lichtartige Kurven (1)
- gekoppelt (1)
- gekoppelte System (1)
- gekrümmte radiale Bergrücken (1)
- gene expression (1)
- gene regulatory networks (1)
- general circulation (1)
- generalised langevin equation (1)
- generalised nonlinear Schrödinger equation (1)
- genetic programming (1)
- genetics (1)
- genomic DNA conformation (1)
- geodynamo (1)
- geometric Brownian motion (1)
- gequetschte Zustände (1)
- gestufte Oberfläche (1)
- giant planets (1)
- giant vesicle (1)
- global description (1)
- global jets (1)
- global surface warming (1)
- globale Kupplung (1)
- gold substrate (1)
- gradient boosting (1)
- gradients (1)
- grafted polymers (1)
- granulare Kette (1)
- graph theory (1)
- grating (1)
- gravitational-wave astronomy (1)
- ground based gamma ray astronomy (1)
- ground-motion variability (1)
- group field theory (1)
- growth (1)
- großräumige Struktur (1)
- großräumige Struktur des Universums (1)
- großräumige Strukturen (1)
- guardrail approach (1)
- habitability (1)
- halbleitendes Polymer (1)
- halo (1)
- halogen bonding (1)
- harmonic traps (1)
- heat capacity (1)
- heat flux (1)
- heat island (1)
- heat transport (1)
- helical magnetic fields (1)
- helicity (1)
- heliotropic (1)
- heliotropisch (1)
- heterojunction silicon solar cells (1)
- hierarchical model (1)
- hierarchical modular networks (1)
- hierarchisches Model (1)
- high energy astrophysics (1)
- high energy physics (1)
- high harmonic (1)
- high harmonic generation (1)
- high permittivity (1)
- high pressure (1)
- high redshift galaxies (1)
- high resolution (1)
- high resolution x-ray diffraction (1)
- high vacuum (1)
- high-latitudinal thermosphere (1)
- high-order phase coupling (1)
- high-performance computing (1)
- high-redshift (1)
- high-redshift galaxies (1)
- high-school education (1)
- high-velocity-clouds (1)
- history and philosophy of astronomy (1)
- hoch rotverschobene Galaxien (1)
- hochauflösende Röntgenstreuung (1)
- hochenergetische Astrophysik (1)
- hohe Auflösung (1)
- hohe Permittivität (1)
- hoher Rotverschiebung (1)
- host galaxies (1)
- human dynamics (1)
- humidity sensor (1)
- hybrid multi-junction solar cell (1)
- hybrid thin solar cells (1)
- hybride Mehrschichtsolarzellen (1)
- hybride Solarzellen (1)
- hydrodynamic flow (1)
- hydrodynamic modeling (1)
- hydrodynamical model (1)
- hydrodynamische Modellierung (1)
- hydrogels (1)
- hydrolysis (1)
- hydrophoben und hydrophile Wechselwirkungen (1)
- hypersound propagation (1)
- hypervelocity stars (1)
- ice core (1)
- ice sheet (1)
- ice sheet modelling (1)
- iceberg calving (1)
- identification (1)
- ill-posed problem (1)
- image data analysis (1)
- impact cratering (1)
- impact simulation (1)
- importance sampling (1)
- impulsive stimulated Raman scattering (1)
- impulsive stimulierte Raman Streuung (1)
- in-situ atomic force microscopy (1)
- individual molecules spectroscopy (1)
- induced deformation (1)
- induced fit (1)
- induzierte Passform (1)
- inference (1)
- infrared (1)
- inorganic perovskites (1)
- inquiry based learning (1)
- instabilities (1)
- instrumentation (1)
- instrumentation: polarimeters (1)
- instrumentation: spectrographs (1)
- integrated assessment (1)
- integrierte Optik (1)
- integrierten Optik (1)
- interaction (1)
- interfacial recombination (1)
- interferometers (1)
- intergalaktisches Medium (IGM) (1)
- intermolecular interaction (1)
- intermolekülare Wechselwirkung (1)
- internal variability (1)
- international migration (1)
- international migration modeling (1)
- internationale Migration (1)
- interspecies interchange (1)
- interstellar matter (1)
- interstellar medium (1)
- interstellare Materie (1)
- intracellular transport (1)
- intracluster medium (1)
- intrazellulärer Transport (1)
- intrinsic neuronal diversity (1)
- inventory (1)
- inverse analysis (1)
- ionischer Self-Assembly (1)
- ions (1)
- iron (1)
- iron pentacarbonyl (1)
- irregular firing activity (1)
- isotope variations (1)
- isotropic fast mode turbulence (1)
- iterative Methoden zur Lösung linearer Systeme (1)
- iterative Rekonstruktion (1)
- iterative methods for sparse linear systems (1)
- jets (1)
- katalytische Isomerisation von Azobenzolen (1)
- kind of radiation (1)
- kinematics (1)
- kinetic (1)
- kinetic instabilities (1)
- kinetic theory (1)
- kinetics (1)
- kinetik (1)
- kinetische Theorie (1)
- kink instability (1)
- kognitive Prozesse (1)
- kohärente Phononen (1)
- kollimation (1)
- komplex (1)
- komplexe Hirnnetzwerke (1)
- komplexe Systeme (1)
- komplexes Netzwerk (1)
- kompression (1)
- kondensierte Materie (1)
- konfokales Laser-Scanning-Mikroskop (1)
- konische Kreuzung (1)
- kooperativer Transport (1)
- koronale Stromsysteme (1)
- kortikale Netzwerke (1)
- kosmische Strahlung Dynamo (1)
- kosmologische Computersimulationen (1)
- kosmologische Simulationen (1)
- kritische Fluktuationen (1)
- kritischer Exponent (1)
- kritischer Kollaps (1)
- kryptografie (1)
- kühle Sterne (1)
- lacunae (1)
- lacuno-canalicular network (1)
- lakuno-kanaliculäres Netzwerk (1)
- land conversion (1)
- langreichweitig (1)
- langreichweitige Korrelationen (1)
- langsam rotierende Kerr-Raumzeiten (1)
- language processing (1)
- large-deviation statistic (1)
- large-scale structure (1)
- large-scale structure formation (1)
- laser pulses (1)
- late-type (1)
- late-type stars (1)
- lattice distortion (1)
- lattice models (1)
- lead (1)
- learning environment (1)
- leitfähige Polymere (1)
- licht-getrieben (1)
- ligand (1)
- light-driven (1)
- light-induced deformation (1)
- line search (1)
- linearized gravity (1)
- lipid membranes (1)
- lipid-anchored saccharide (1)
- lipid-verankerte Saccharide (1)
- lipids (1)
- literature review (1)
- living cells (1)
- local density approximation (1)
- local group (1)
- localization (1)
- lokale Dichte-Näherung (1)
- lokalen Gruppe (1)
- long range (1)
- long-chain alkane (1)
- long-memory (1)
- long-range dependence (1)
- loop closure (1)
- loop quantum gravity (1)
- macro-economic modelling (1)
- macroeconomic impacts (1)
- magnesium oxide (1)
- magnetic and phononic system (1)
- magnetic field generation (1)
- magnetic field satellites (1)
- magnetic flux tubes (1)
- magnetic noise (1)
- magnetic proximity effect (1)
- magnetische resonante Beugung (1)
- magnetischem Röntgendichroismus (XMCD) (1)
- magnetischer Näherungseffekt (1)
- magnetischer Zirkulardichroismus (1)
- magnetisches Rauschen (1)
- magnetisches und phononisches System (1)
- magnetizationdynamic (1)
- magneto-optics (1)
- magnetoconvection (1)
- magnetoelasticity (1)
- magnetohydrodynamic (1)
- magnetohydrodynamics (MHD) (1)
- magnetometer calibration (1)
- magnetosome chains (1)
- magnetosphere (1)
- magnetosphere-ionosphere-thermosphere coupling (1)
- magnetospheric physics (1)
- magnetospheric waves (1)
- magnetosphärischen Wellen (1)
- magnetotactic bacteria (1)
- magnetotaktische Bakterien (1)
- major mergers (1)
- makroökonomische Folgen (1)
- manifold detection (1)
- markov processes (1)
- maschinelles Lernen (1)
- mass conservation (1)
- mass extinctions (1)
- mass loss (1)
- mass wasting (1)
- mass-transport (1)
- mass-wasting velocities (1)
- massive Schwarze Löcher (1)
- massive Sterne (1)
- massive black holes (1)
- master equation (1)
- master equations (1)
- material (1)
- material properties (1)
- mathematics education (1)
- maximum and range (1)
- mean first passage times (1)
- mean free path (1)
- mean versus most probable reaction times (1)
- mean-field theory (1)
- meanfield (1)
- mechanical and acoustical properties (1)
- mechanical behavior (1)
- mechanical properties (1)
- mechanische und akustische Eigenschaften (1)
- mechanisches Verhalten (1)
- mechanisms (1)
- mechanosensor (1)
- mechanotransduction (1)
- membrane adhesion (1)
- membrane adhesion forces (1)
- membrane channel (1)
- membrane curvature (1)
- membrane tube (1)
- membranes (1)
- memory and delay (1)
- memory applications (1)
- menschliche Dynamik (1)
- mesoporous (1)
- mesoporös (1)
- metal (1)
- metal carbonyls (1)
- metal halide perovskites (1)
- metal nanoparticles (1)
- metal/polymer interfaces (1)
- methodology (1)
- methods: analytical (1)
- methods: data analysis (1)
- methods: numerical (1)
- methods: statistical (1)
- mhd turbulence (1)
- micelles (1)
- micro swimmer (1)
- micro- and nanotechnologies (1)
- micrometeorology (1)
- micropipetten (1)
- microsaccades (1)
- microstructured fiber (1)
- microstructured surface (1)
- microstrukturierte Oberfläche (1)
- microswimmers (1)
- migration (1)
- mikrostrukturierte Faser (1)
- milton rd (1)
- mineralization (1)
- mixed boundary conditions (1)
- mixed-effect analysis (1)
- mixed-phase clouds (1)
- mixing parameterization (1)
- mobile-immobile model (MIM) (1)
- mock data catalogues (1)
- mock observations (1)
- mode-locking (1)
- model coupling (1)
- model tuning (1)
- model validation (1)
- modellinterne Variabilitaet (1)
- modification stage (1)
- modified dispersion relations (1)
- modified gravitational dynamics (1)
- moist static energy (1)
- molecular bottle brushes (1)
- molecular crowding (1)
- molecular motor (1)
- molecule (1)
- molekulare Dotierung (1)
- molekulares Dotieren (1)
- monolayer (1)
- monsoon breaks (1)
- monte-carlo (1)
- morphogenesis (1)
- motility assay (1)
- motion (1)
- motion of adsorbed nano-particles (1)
- motivation (1)
- motor cycle (1)
- motor velocity (1)
- multi protein complex formation (1)
- multi-messenger astronomy (1)
- multi-scale (1)
- multi-spectrum regularization (1)
- multicomponent system (1)
- multiferroic heterostructure (1)
- multiferroischen Heterostruktur (1)
- multipolar gravitational waves (1)
- multivariate analysis (1)
- music instruments (1)
- musical acoustics (1)
- musikalische Akustik (1)
- mutual information (1)
- nano-electrodes (1)
- nanocomposites (1)
- nanomaterials (1)
- nanoparticle (1)
- nanoskaliger Wärmetransport (1)
- narrow escape problem (1)
- natural language processing (1)
- negative thermal expansion (1)
- nematic LC (1)
- network (1)
- network inference (1)
- network reconstruction (1)
- network theory (1)
- neural networks (1)
- neuronal networks (1)
- neuronale Netze (1)
- neutron diffraction (1)
- neutron reflectometry (1)
- neutron stars (1)
- next generation Cherenkov telescopes (1)
- nichlineare Phononik (1)
- nicht klassische Zustände (1)
- nicht-Markovsche Dynamik (1)
- nicht-thermische Emission (1)
- nicht-thermische Strahlung (1)
- nichtgenestete Modellselektion (1)
- nichtgleichgewichts Dynamik (1)
- nichtlinear (1)
- nichtlineare Dynamiken (1)
- nichtlineare Dynamo (1)
- nichtlineare Oszillationen (1)
- nichtlineare Wellenmischung (1)
- nichtlineare Zeitreihenanalyse (1)
- nichtstrahlende Verluste (1)
- nitrogen (1)
- noise-induced excitability (1)
- noise-induced oscillation suppression (1)
- noisy systems (1)
- non-Gaussian diffusion (1)
- non-Gaussianity (1)
- non-Markovian dynamics (1)
- non-classicality (1)
- non-destructive evaluation (1)
- non-equilibrium (1)
- non-equilibrium dynamics (1)
- non-gaussianity (1)
- non-linear microscopy (1)
- non-linear optics (1)
- non-linear oscillators (1)
- non-nested model selection (1)
- non-radiative interface recombination (1)
- non-radiative recombination (1)
- non-thermal emission (1)
- non-thermal radiation (1)
- non-volatile memory (1)
- nonfullerene acceptors (1)
- nonliear dynamo (1)
- nonlinear (1)
- nonlinear Dynamics (1)
- nonlinear acoustics (1)
- nonlinear data analysis (1)
- nonlinear excited fluorescence (1)
- nonlinear optics (1)
- nonlinear systems (1)
- nonlinear waves (1)
- nonlocally coupled phase oscillators (1)
- nonradiative losses (1)
- nonradiative voltage losses (1)
- northern (1)
- nucleation (1)
- nucleation and growth (1)
- nudging (1)
- numeric device simulations (1)
- numerical astrophysics (1)
- numerical experiments (1)
- numerical simulation (1)
- numerical techniques (1)
- numerische Astrophysik (1)
- numerische Bauteilsimulationen (1)
- numerische Methoden (1)
- numerische Relativität (1)
- numerische Relativitätstheorie (1)
- numerische Relativiät (1)
- numerischen Relativitätstheorie (1)
- o (1)
- observations (1)
- observations with TESS (1)
- ocean heat uptake (1)
- ocean model (1)
- offene Sternhaufen und stellare Assoziationen (1)
- offener Sternhaufen (1)
- offenes Quantensystem (1)
- on-sky tests (1)
- one-dimensional Bose gas (1)
- open circuit voltage (1)
- open cluster (1)
- open clusters and stellar associations (1)
- open quantum system (1)
- optical fibers (1)
- optical frequency combs (1)
- optical manipulation (1)
- optical near-field (1)
- optical solitons (1)
- optically induced dynamics (1)
- optically thin clouds (1)
- optisch dünne Wolken (1)
- optisch induzierte Dynamik (1)
- optische Anregung (1)
- optische Fasern (1)
- optische Frequenzkämme (1)
- optische Solitonen (1)
- opto-mechanical stresses (1)
- optoelectronic measurements (1)
- optoelektronische Messungen (1)
- orbital analysis (1)
- organ pipe (1)
- organ pipes (1)
- organic crystal (1)
- organic electronic (1)
- organic electronics (1)
- organic-inorganic hybrids (1)
- organisch-anorganische Hybride (1)
- organische Bodensubstanz (1)
- organische Kristalle (1)
- organische Solarzelle (1)
- organischer Halbleiter (1)
- origins (1)
- oscillation (1)
- oscillators (1)
- osmotic-pressure (1)
- osmotic-stress (1)
- overheating (1)
- ozone loss (1)
- palaeoclimate (1)
- paleoclimatology (1)
- parallel immobilization of biomolecules (1)
- parallele Immobilisierung von Biomolekülen (1)
- parametrically excited oscillator (1)
- parametrisch erregter Oszillator (1)
- particle physics (1)
- particle transport (1)
- pause hiatus (1)
- peculiar velocities (1)
- pedagogical content knowledge (1)
- pedagogical content knowledge (PCK) (1)
- pedagogical reasoning (1)
- peptide-membrane-interaction (1)
- perovskite oxides (1)
- persistence length (1)
- ph-responsive microgels (1)
- phase coupling (1)
- phase demodulation (1)
- phase dynamics (1)
- phase equations (1)
- phase purity (1)
- phase rule (1)
- phase separation (1)
- phase space density (1)
- phase space reconstruction (1)
- phase spectrum (1)
- phase-amplitude mixing (1)
- phenotypic heterogeneity (1)
- philosophy of science (1)
- phonon backfolding (1)
- phonon damping (1)
- phonon dynamics (1)
- phonon modes (1)
- phonon polariton (1)
- phonons (1)
- phosphorylation (1)
- photo electron spectroscopy (1)
- photo physics (1)
- photo-emission electron microscopy (PEEM) (1)
- photo-isomerization kinetics (1)
- photo-sensitive surfactant (1)
- photo-stimulated discharge (1)
- photo-structuring of polymer films (1)
- photoacoustic effect (1)
- photoakustischer Effekt (1)
- photocatalysis (1)
- photocontrol (1)
- photodissociation (1)
- photoelectron (1)
- photoelectron microscopy (1)
- photoexcitation (1)
- photofragmentation (1)
- photogeneration (1)
- photoinduced dynamics (1)
- photon recycling (1)
- photonic crystal (1)
- photonic lanterns (1)
- photonische Laternen (1)
- photoresponsive surfactants (1)
- photosensitive Polymer (1)
- photosensitive surfactants (1)
- photostability (1)
- photovoltaic (1)
- physical chemistry (1)
- physics of flares (1)
- physics of musical instruments (1)
- picosecond acoustics (1)
- picosecond ultrasonics (1)
- piezo-, pyro- and ferroelectricity (1)
- piezo-optical (1)
- piezo-optisch (1)
- piezoelectric polymers (1)
- piezoelektrische Sensoren (1)
- pitch angle (1)
- planet (1)
- planetary nebulae (1)
- planetary rings (1)
- planetary wave propagation (1)
- planetary wave resonance (1)
- plant growth (1)
- plasma (1)
- plasma-membrane (1)
- plasmon nano-particles (1)
- plasmonic catalysis (1)
- plasmonische Katalyse (1)
- plasmonische Nanopartikeln (1)
- point defect (1)
- polar (1)
- polar motion (1)
- polar research (1)
- polar vortex (1)
- polarization (1)
- poly (acrylic acid, sodium salt) (1)
- poly(vinylidene fluoride) (1)
- poly-DADMAC (1)
- polydispersity (1)
- polyelectrolyte (1)
- polyelectrolyte adsorption (1)
- polyelectrolyte brushes (1)
- polyelectrolyte multilayer (1)
- polyethylene nanocomposites (1)
- polyethylene terephthalate (1)
- polymer (1)
- polymer aggregation (1)
- polymer crystal orientation (1)
- polymer electrets (1)
- polymer film (1)
- polymer foam (1)
- polymer physics (1)
- polymer-electret (1)
- polystyrene nano-spheres (1)
- polysulfobetaine (1)
- polythiohene (1)
- population (1)
- population dynamics (1)
- porosity analysis (1)
- poröse Siliciumdioxidpartikel (1)
- post-AGB stars (1)
- post-Newton (1)
- post-depositional (1)
- post-translational (1)
- post-translationale Assemblierung (1)
- posttranslational protein translocation (1)
- potential-energy surface (1)
- powder particle analysis (1)
- pp-wave solutions (1)
- pre-service teachers (1)
- preconceptions (1)
- precursor (1)
- predictive modeling (1)
- pressure gradient (1)
- prestabilization (1)
- primordial black holes (1)
- professionalization (1)
- propellers (1)
- protein kinetics (1)
- protein search (1)
- protein-protein interaction (1)
- proteins (1)
- protonation (1)
- proximity effect (1)
- proxy uncertainty (1)
- proxy understanding (1)
- pseudomonas putida (1)
- pump-probe experiment (1)
- pupil remappers (1)
- pyroelectric polymers (1)
- quanteninformation (1)
- quantenkanal (1)
- quantenkodierung (1)
- quantifizierende Rekurrenzanalyse (1)
- quantitative Inhaltsanalyse (1)
- quantization of field theories (1)
- quantum channel (1)
- quantum computer (1)
- quantum degenerate BEC FDS ultacold atoms (1)
- quantum electrodynamics (QED) (1)
- quantum fluctuations (1)
- quantum information (1)
- quantum many-body theory (1)
- quantum mechanics (1)
- quantum wire (1)
- quasars: absorption lines (1)
- quasi-Fermi level (1)
- quasi-Fermi level splitting (1)
- quasi-condensate (1)
- quasi-geostrophic model (1)
- quasi-geostropisches Modell (1)
- quasi-steady-state photoinduced absorptions (1)
- quasiparticle interactions (1)
- quasiperiodic dynamical systems (1)
- quasiperiodisches dynamisches System (1)
- radiation load (1)
- radiation mechanisms (1)
- radiative limit (1)
- radiative transfer modeling (1)
- radio (1)
- radio burst (1)
- radiobiology (1)
- raman (1)
- raman-scattering (1)
- random walks (1)
- random-walk (1)
- random-walks (1)
- rate equation (1)
- raumartige Unendliche (1)
- reaction cascade (1)
- reactive annealing (1)
- reaktives Anlassen (1)
- receptor (1)
- recognition (1)
- recombinations (1)
- reconfigurable matter (1)
- rectification (1)
- recurrences (1)
- red giant stars (1)
- refined consensus model (1)
- refined consensus model (RCM) (1)
- refined spacetime geometries (1)
- reflecting boundary conditions (1)
- reflection (1)
- reflexion (1)
- regge calculus (1)
- regime shifts (1)
- region (1)
- regional (1)
- regional climate modelling (1)
- regional climate simulations (1)
- regional modeling (1)
- regionale Klimamodellierung (1)
- regionale Klimasimulationen (1)
- regionales Klimamodell (1)
- regionales Modell (1)
- regularization (1)
- rein optisches helizitätsabhängiges Schalten (AO-HDS) (1)
- relativistic hydrodynamics (1)
- relativistic jets (1)
- relativistic processes (1)
- relativistische Hydrodynamik (1)
- relativistische Prozesse (1)
- relaxor-ferroelectric polymers (1)
- remagnetization (1)
- remote sensing (1)
- renormalization and refinement limit (1)
- repertory grid (1)
- resonance fluorescence (1)
- resonant inelastic X-ray scattering; (1)
- resonant soft x-ray diffraction (1)
- resonante inelastische Röntgenstreuung (1)
- resonante weiche Röntgenbeugung (1)
- responsive polymer (1)
- retrieval (1)
- return level estimation (1)
- reversal (1)
- ring current (1)
- ring current electrons (1)
- ringe (1)
- rings (1)
- robotic (1)
- rods (1)
- rollende Adhäsion (1)
- rotation (1)
- rotation curves (1)
- rote Riesensterne (1)
- royal soc chemistry (1)
- runaway stars (1)
- rückgekoppelte Zufallsprozesse (1)
- saccade detection (1)
- satellite galaxies (1)
- saturn (1)
- scattering (1)
- scattering resonances (1)
- science education (1)
- science park (1)
- science teaching (1)
- sea level (1)
- seasonality (1)
- second-harmonic generation (1)
- secure communication (1)
- sehr hohe Energien (1)
- seismicity (1)
- selbst-getriebene Partikel (1)
- selbsterhaltende Oszillatoren (1)
- selection-linked integration (1)
- selective bond cleavage (1)
- self-assembly (1)
- self-gravity (1)
- self-organization (1)
- self-propelled particle (1)
- self-similarity (1)
- self-steepening (1)
- self-sustained Oscillators (1)
- self-sustained activity (1)
- seltene Erden (1)
- semantic incongruity (1)
- semi-empirical models (1)
- semiclassical states (1)
- semiconducting polymer (1)
- semiconductor gratings (1)
- semiempirische Modelle (1)
- semiklassische Zustände (1)
- sensor (1)
- seperation (1)
- sequence-controlled polymers (1)
- series (1)
- shell-like geometries (1)
- sichere Übertragung (1)
- signaling system (1)
- similarity measures (1)
- simulation of reciprocal space maps (1)
- single cell analysis (1)
- single chain folding (1)
- single trajectories (1)
- single trajectory analysis (1)
- single-mode fiber (1)
- single-molecule biosensor (1)
- single-object detection (1)
- single-particle tracking (1)
- single-stranded-dna (1)
- sink (1)
- slowly rotating Kerr spacetimes (1)
- snow thermal conductivity (1)
- soft X-ray beamline (1)
- soft X-ray spectroscopy (1)
- soft matter physics (1)
- soft x-ray diffraction (1)
- soil organic matter (1)
- solar activity (1)
- solar corona (1)
- solar coronal mass ejections (1)
- solar eruption (1)
- solar storm (1)
- solar wind and interplanetary magnetic field influence (1)
- solare Eruption (1)
- solid complex preparation (1)
- solid state Laser (1)
- solid state physics (1)
- solid-liquid interface (1)
- solid-state nanopores (1)
- soliton (1)
- solvent dependence (1)
- sound radiation (1)
- space charge (1)
- space charge field (1)
- space physics (1)
- space-dependent diffusivity (1)
- space-like infinity (1)
- space-time geometry (1)
- spacetime geometry (1)
- spatial localization (1)
- spectral analysis (1)
- spectrograph calibration (1)
- spectrographs (1)
- spectrum (1)
- spektrale Leistungsdichte (1)
- sphäroidische Zwerggalaxien (1)
- spin foams (1)
- spin resolved photoelectron spectroscopy (1)
- spin structure (1)
- spin texture (1)
- spin waves (1)
- spin- and angle-resolved photoemission (1)
- spin-orbit coupling (1)
- spinaufgelöste Photoelektronenspektroskopie (1)
- spindown (1)
- spiral galaxies (1)
- spiral galaxies: magnetic fields (1)
- splitting (1)
- spontaneous parametric down-conversion (1)
- spots (1)
- squeezing entanglement (1)
- stabile Isotope (1)
- stabile Schichtung (1)
- stable isotopes (1)
- stable stratification (1)
- star clusters (1)
- star-brown dwarf systems (1)
- star-planet interaction (1)
- star-planet systems (1)
- starch metabolism (1)
- stars: AGB and post-AGB (1)
- stars: Wolf-Rayet (1)
- stars: atmospheres (1)
- stars: distances (1)
- state model (1)
- state space reconstruction (1)
- states (1)
- stationary stochastic process (1)
- statistical methods (1)
- statistische Methoden (1)
- staub (1)
- stellar content (1)
- stellar coronal mass ejections (1)
- stellar feedback (1)
- stellar interferometry (1)
- stellar kinematics (1)
- stellar population (1)
- stellar rotation (1)
- stellar surface (1)
- stellar variability (1)
- stellare Aktivität (1)
- stellare Interferometrie (1)
- stellare Kinematik (1)
- stellare Physik (1)
- stellare Population (1)
- stellare Populationen (1)
- stellare Rotation (1)
- stellarer Inhalt (1)
- stepped surface (1)
- stimulated Brillouin scattering (1)
- stochastic Gross-Pitaevskii equation (1)
- stochastic bursting (1)
- stochastic differential equation (1)
- stochastic dynamics (1)
- stochastic models (1)
- stochastic network (1)
- stochastic oscillations (1)
- stochastic process (1)
- stochastic ratchet (1)
- stochastic resetting (1)
- stochastic systems (1)
- stochastische Dynamik (1)
- stochastische Ratsche (1)
- stochastische Systeme (1)
- stochastisches Netzwerk (1)
- stopped-flow (1)
- strain (1)
- strain fields (1)
- stratosphere (1)
- stratospheric chemistry (1)
- stratospheric circulation (1)
- structur-function relationship (1)
- structural dynamics (1)
- structural properties (1)
- structure-property relationships (1)
- structured polynucleotides (1)
- structured substrates (1)
- strukturelle Eigenschaften (1)
- strukturierte Substrate (1)
- students' conceptions (1)
- sub-diffraction gratings (1)
- subdiffusion (1)
- sulfur (1)
- sun (1)
- sunspot group tilt angle (1)
- superconductor (1)
- superconductors (1)
- superlattice dispersion (1)
- surf (1)
- surface chemical treatment (1)
- surface emissivity (1)
- surface features (1)
- surface flow (1)
- surface states (1)
- surrogate method (1)
- surrogates (1)
- survey (1)
- swelling behavior (1)
- switchSENSE (1)
- switchSENSE Technologie (1)
- symbolic regression (1)
- synchronisation (1)
- synchronization transition (1)
- synoptic cyclones (1)
- synoptische Zyklone (1)
- synthesis (1)
- synthetic eumelanin (1)
- synthetische Beobachtungen (1)
- synthetisches Eumelanin (1)
- system (1)
- tailored pulse trains (1)
- tandem solar cell (1)
- tandem solar cells (1)
- task-based parallelism (1)
- tau proteins (1)
- teacher education (1)
- teacher professional development (1)
- teaching practice (1)
- techniques of optical spectroscopy: IR absorption (1)
- teleconnection patterns (1)
- telescope (1)
- temperature (1)
- temperature dependence (1)
- temperature fluctuation (1)
- temperature proxy (1)
- temperature variability (1)
- tensor decompositions (1)
- terrace ... (1)
- texture (1)
- thermal evolution (1)
- thermal noise in mirror coatings (1)
- thermal treatment (1)
- thermal wind equation (1)
- thermalization (1)
- thermally activated dynamics (1)
- thermisch aktivierte Dynamik (1)
- thermische Evolution (1)
- thermische Windgleichung (1)
- thermisches Rauschen in Spiegelbeschichtungen (1)
- thermo-luminescence (1)
- thermo-stimulated discharge (1)
- thermoacoustic effect (1)
- thermoacoustics (1)
- thermoakustischer Effekt (1)
- thermodynamic structure (1)
- thermodynamics (1)
- thermodynamische Struktur (1)
- thermoelectricity (1)
- thermophone (1)
- theta (1)
- thin flexible and conformable films (1)
- thin organic layers (1)
- thin-films (1)
- thomas graham house (1)
- tidal interactions (1)
- time (1)
- time averaging (1)
- time perception (1)
- time resolved (1)
- time resolved pump probe spectroscopy (1)
- time resolved spectroskopy (1)
- time reversal symmetry (1)
- time-averaged mean squared displacement (1)
- time-resolved x-ray diffraction (1)
- tipping cascade (1)
- tipping element (1)
- tissue growth (1)
- titanium dioxide (1)
- tolerable windows approach (1)
- tomography (1)
- topological insulators (1)
- topologische Isolatoren (1)
- tracking (1)
- traffic jams (1)
- trajectories (1)
- transcrystalline polypropylene (1)
- transduction (1)
- transfer dynamics (1)
- transient absorption (1)
- transient grating (1)
- transient methods (1)
- transiente Messmethoden (1)
- transientes Gitter (1)
- transition (1)
- transition metal systems (1)
- transition metals (1)
- transition moment (1)
- transition state (1)
- transkristallines Polypropylen (1)
- transport and interaction phase (1)
- trap-depth (1)
- travelling waves (1)
- tug-of-war (1)
- turbulence measurement (1)
- turbulence parameterizations (1)
- two-dimensional (1)
- type I AGN (1)
- type II AGN (1)
- type III (1)
- ultra-fast laser inscription technology (1)
- ultra-high energy cosmic rays (1)
- ultrafast X-ray diffraction (1)
- ultrafast magnetism (1)
- ultrafast molecular dynamics (1)
- ultrafast phenomena (1)
- ultrafast photoacoustics (1)
- ultrafast spectroscopy (1)
- ultrahochenergetische kosmische Strahlung (1)
- ultraschnelle Moleküldynamik (1)
- ultraschnelle Phänomene (1)
- ultraschnelle Röntgenbeugung (1)
- ultraschneller Magnetimus (1)
- uncertainties (1)
- undercooling (1)
- unferring cellular networks (1)
- ungeordnete Systeme (1)
- up-down states (1)
- upper atmosphere model (1)
- urban (1)
- urbanisation (1)
- urbanization (1)
- vacuum fields (1)
- vacuum fluctuations (1)
- valence band structure (1)
- van der Waals forces (1)
- van der Waals-Kräfte (1)
- vapour deposition (1)
- variability (1)
- variables (1)
- vegetation (1)
- verallgemeinerte nichlineare Schrödinger Gleichung (1)
- verrauschte Oszillatoren (1)
- vertieftes Schulwissen (1)
- very-high energy (1)
- vesicles (1)
- vinylidenefluoride (VDF)-based polymers (1)
- violin (1)
- virus (1)
- viscoplastic theory (1)
- viscosity (1)
- visibility (1)
- viskoplastische Theorie (1)
- visual fixation (1)
- voltage losses (1)
- wafers (1)
- waste heat (1)
- water-vapor (1)
- wave equation (1)
- wave propagation (1)
- wave scattering (1)
- wave-particle interactions (1)
- wavelength (1)
- wavelength shift (1)
- waves (1)
- weather extremes (1)
- wetting transition (1)
- whistler waves (1)
- white-light generation (1)
- wind bubble (1)
- winkelaufgelöste Photoelektronenspektroskopie (1)
- word n-gram probability (1)
- wässrige Filme (1)
- x-ray (1)
- x-ray magnetic circular dichroism (XMCD) (1)
- x-ray magnetic resonant diffraction (XMRD) (1)
- x-rays (1)
- zeitaufgelöst (1)
- zeitaufgelöste Röntgenbeugung (1)
- zeitaufgelöste Spektroskopie (1)
- zeitverzögerte Selbstkopplung (1)
- zerstörungfreie Prüfung (1)
- zirkumgalaktischen Medium (1)
- zirkumgalaktisches Medium (1)
- zufälligen Diffusivität (1)
- zweite Harmonische (1)
- µCT (1)
- Ähnlichkeit-Masse (1)
- Æ Recurrence Plots (1)
- Ökologie (1)
- Ökonomisches Netzwerk (1)
- Überflutung (1)
- Übergang (1)
- Übergangsmetall - Komplexe (1)
- Übergangsmetalle (1)
- Übergangsmoment (1)
- Übergangszustand (1)
- Übergitter Dispersion (1)
- Überhitzung (1)
- Überschwemmungen (1)
- азобензолсодержащие ПАВ (1)
- каталитическая изомеризация азобензолов (1)
- плазмонные наночастицы (1)
- показатель преломления азобензолов (1)
- wahrgenommene Relevanz (1)
Institute
- Institut für Physik und Astronomie (720) (remove)
Additive manufacturing (AM) processes enable the production of metal structures with exceptional design freedom, of which laser powder bed fusion (PBF-LB) is one of the most common. In this process, a laser melts a bed of loose feedstock powder particles layer-by-layer to build a structure with the desired geometry. During fabrication, the repeated melting and rapid, directional solidification create large temperature gradients that generate large thermal stress. This thermal stress can itself lead to cracking or delamination during fabrication. More often, large residual stresses remain in the final part as a footprint of the thermal stress. This residual stress can cause premature distortion or even failure of the part in service. Hence, knowledge of the residual stress field is critical for both process optimization and structural integrity.
Diffraction-based techniques allow the non-destructive characterization of the residual stress fields. However, such methods require a good knowledge of the material of interest, as certain assumptions must be made to accurately determine residual stress. First, the measured lattice plane spacings must be converted to lattice strains with the knowledge of a strain-free material state. Second, the measured lattice strains must be related to the macroscopic stress using Hooke's law, which requires knowledge of the stiffness of the material. Since most crystal structures exhibit anisotropic material behavior, the elastic behavior is specific to each lattice plane of the single crystal. Thus, the use of individual lattice planes in monochromatic diffraction residual stress analysis requires knowledge of the lattice plane-specific elastic properties. In addition, knowledge of the microstructure of the material is required for a reliable assessment of residual stress.
This work presents a toolbox for reliable diffraction-based residual stress analysis. This is presented for a nickel-based superalloy produced by PBF-LB. First, this work reviews the existing literature in the field of residual stress analysis of laser-based AM using diffraction-based techniques. Second, the elastic and plastic anisotropy of the nickel-based superalloy Inconel 718 produced by PBF-LB is studied using in situ energy dispersive synchrotron X-ray and neutron diffraction techniques. These experiments are complemented by ex situ material characterization techniques. These methods establish the relationship between the microstructure and texture of the material and its elastic and plastic anisotropy. Finally, surface, sub-surface, and bulk residual stress are determined using a texture-based approach. Uncertainties of different methods for obtaining stress-free reference values are discussed.
The tensile behavior in the as-built condition is shown to be controlled by texture and cellular sub-grain structure, while in the heat-treated condition the precipitation of strengthening phases and grain morphology dictate the behavior. In fact, the results of this thesis show that the diffraction elastic constants depend on the underlying microstructure, including texture and grain morphology. For columnar microstructures in both as-built and heat-treated conditions, the diffraction elastic constants are best described by the Reuss iso-stress model. Furthermore, the low accumulation of intergranular strains during deformation demonstrates the robustness of using the 311 reflection for the diffraction-based residual stress analysis with columnar textured microstructures. The differences between texture-based and quasi-isotropic approaches for the residual stress analysis are shown to be insignificant in the observed case. However, the analysis of the sub-surface residual stress distributions show, that different scanning strategies result in a change in the orientation of the residual stress tensor. Furthermore, the location of the critical sub-surface tensile residual stress is related to the surface roughness and the microstructure. Finally, recommendations are given for the diffraction-based determination and evaluation of residual stress in textured additively manufactured alloys.
Organic-inorganic hybrids based on P3HT and mesoporous silicon for thermoelectric applications
(2024)
This thesis presents a comprehensive study on synthesis, structure and thermoelectric transport properties of organic-inorganic hybrids based on P3HT and porous silicon. The effect of embedding polymer in silicon pores on the electrical and thermal transport is studied. Morphological studies confirm successful polymer infiltration and diffusion doping with roughly 50% of the pore space occupied by conjugated polymer. Synchrotron diffraction experiments reveal no specific ordering of the polymer inside the pores. P3HT-pSi hybrids show improved electrical transport by five orders of magnitude compared to porous silicon and power factor values comparable or exceeding other P3HT-inorganic hybrids. The analysis suggests different transport mechanisms in both materials. In pSi, the transport mechanism relates to a Meyer-Neldel compansation rule. The analysis of hybrids' data using the power law in Kang-Snyder model suggests that a doped polymer mainly provides charge carriers to the pSi matrix, similar to the behavior of a doped semiconductor. Heavily suppressed thermal transport in porous silicon is treated with a modified Landauer/Lundstrom model and effective medium theories, which reveal that pSi agrees well with the Kirkpatrick model with a 68% percolation threshold. Thermal conductivities of hybrids show an increase compared to the empty pSi but the overall thermoelectric figure of merit ZT of P3HT-pSi hybrid exceeds both pSi and P3HT as well as bulk Si.
Actin is one of the most highly conserved proteins in eukaryotes and distinct actin-related proteins with filament-forming properties are even found in prokaryotes. Due to these commonalities, actin-modulating proteins of many species share similar structural properties and proposed functions. The polymerization and depolymerization of actin are critical processes for a cell as they can contribute to shape changes to adapt to its environment and to move and distribute nutrients and cellular components within the cell. However, to what extent functions of actin-binding proteins are conserved between distantly related species, has only been addressed in a few cases. In this work, functions of Coronin-A (CorA) and Actin-interacting protein 1 (Aip1), two proteins involved in actin dynamics, were characterized. In addition, the interchangeability and function of Aip1 were investigated in two phylogenetically distant model organisms. The flowering plant Arabidopsis thaliana (encoding two homologs, AIP1-1 and AIP1-2) and in the amoeba Dictyostelium discoideum (encoding one homolog, DdAip1) were chosen because the functions of their actin cytoskeletons may differ in many aspects. Functional analyses between species were conducted for AIP1 homologs as flowering plants do not harbor a CorA gene.
In the first part of the study, the effect of four different mutation methods on the function of Coronin-A protein and the resulting phenotype in D. discoideum was revealed in two genetic knockouts, one RNAi knockdown and a sudden loss-of-function mutant created by chemical-induced dislocation (CID). The advantages and disadvantages of the different mutation methods on the motility, appearance and development of the amoebae were investigated, and the results showed that not all observed properties were affected with the same intensity. Remarkably, a new combination of Selection-Linked Integration and CID could be established.
In the second and third parts of the thesis, the exchange of Aip1 between plant and amoeba was carried out. For A. thaliana, the two homologs (AIP1-1 and AIP1-2) were analyzed for functionality as well as in D. discoideum. In the Aip1-deficient amoeba, rescue with AIP1-1 was more effective than with AIP1-2. The main results in the plant showed that in the aip1-2 mutant background, reintroduced AIP1-2 displayed the most efficient rescue and A. thaliana AIP1-1 rescued better than DdAip1. The choice of the tagging site was important for the function of Aip1 as steric hindrance is a problem. The DdAip1 was less effective when tagged at the C-terminus, while the plant AIP1s showed mixed results depending on the tag position. In conclusion, the foreign proteins partially rescued phenotypes of mutant plants and mutant amoebae, despite the organisms only being very distantly related in evolutionary terms.
The icosahedral non-hydrostatic large eddy model (ICON-LEM) was applied around the drift track of the Multidisciplinary Observatory Study of the Arctic (MOSAiC) in 2019 and 2020. The model was set up with horizontal grid-scales between 100m and 800m on areas with radii of 17.5km and 140 km. At its lateral boundaries, the model was driven by analysis data from the German Weather Service (DWD), downscaled by ICON in limited area mode (ICON-LAM) with horizontal grid-scale of 3 km.
The aim of this thesis was the investigation of the atmospheric boundary layer near the surface in the central Arctic during polar winter with a high-resolution mesoscale model. The default settings in ICON-LEM prevent the model from representing the exchange processes in the Arctic boundary layer in accordance to the MOSAiC observations. The implemented sea-ice scheme in ICON does not include a snow layer on sea-ice, which causes a too slow response of the sea-ice surface temperature to atmospheric changes. To allow the sea-ice surface to respond faster to changes in the atmosphere, the implemented sea-ice parameterization in ICON was extended with an adapted heat capacity term.
The adapted sea-ice parameterization resulted in better agreement with the MOSAiC observations. However, the sea-ice surface temperature in the model is generally lower than observed due to biases in the downwelling long-wave radiation and the lack of complex surface structures, like leads. The large eddy resolving turbulence closure yielded a better representation of the lower boundary layer under strongly stable stratification than the non-eddy-resolving turbulence closure. Furthermore, the integration of leads into the sea-ice surface reduced the overestimation of the sensible heat flux for different weather conditions.
The results of this work help to better understand boundary layer processes in the central Arctic during the polar night. High-resolving mesoscale simulations are able to represent temporally and spatially small interactions and help to further develop parameterizations also for the application in regional and global models.
The origin and structure of magnetic fields in the Galaxy are largely unknown. What is known is that they are essential for several astrophysical processes, in particular the propagation of cosmic rays. Our ability to describe the propagation of cosmic rays through the Galaxy is severely limited by the lack of observational data needed to probe the structure of the Galactic magnetic field on many different length scales. This is particularly true for modelling the propagation of cosmic rays into the Galactic halo, where our knowledge of the magnetic field is particularly poor.
In the last decade, observations of the Galactic halo in different frequency regimes have revealed the existence of out-of-plane bubble emission in the Galactic halo. In gamma rays these bubbles have been termed Fermi bubbles with a radial extent of ≈ 3 kpc and an azimuthal height of ≈ 6 kpc. The radio counterparts of the Fermi bubbles were seen by both the S-PASS telescopes and the Planck satellite, and showed a clear spatial overlap. The X-ray counterparts of the Fermi bubbles were named eROSITA bubbles after the eROSITA satellite, with a radial width of ≈ 7 kpc and an azimuthal height of ≈ 14 kpc. Taken together, these observations suggest the presence of large extended Galactic Halo Bubbles (GHB) and have stimulated interest in exploring the less explored Galactic halo.
In this thesis, a new toy model (GHB model) for the magnetic field and non-thermal electron distribution in the Galactic halo has been proposed. The new toy model has been used to produce polarised synchrotron emission sky maps. Chi-square analysis was used to compare the synthetic skymaps with the Planck 30 GHz polarised skymaps. The obtained constraints on the strength and azimuthal height were found to be in agreement with the S-PASS radio observations.
The upper, lower and best-fit values obtained from the above chi-squared analysis were used to generate three separate toy models. These three models were used to propagate ultra-high energy cosmic rays. This study was carried out for two potential sources, Centaurus A and NGC 253, to produce magnification maps and arrival direction skymaps. The simulated arrival direction skymaps were found to be consistent with the hotspots of Centaurus A and NGC 253 as seen in the observed arrival direction skymaps provided by the Pierre Auger Observatory (PAO).
The turbulent magnetic field component of the GHB model was also used to investigate the extragalactic dipole suppression seen by PAO. UHECRs with an extragalactic dipole were forward-tracked through the turbulent GHB model at different field strengths. The suppression in the dipole due to the varying diffusion coefficient from the simulations was noted. The results could also be compared with an analytical analogy of electrostatics. The simulations of the extragalactic dipole suppression were in agreement with similar studies carried out for galactic cosmic rays.
Relativistic pair beams produced in the cosmic voids by TeV gamma rays from blazars are expected to produce a detectable GeV-scale cascade emission missing in the observations. The suppression of this secondary cascade implies either the deflection of the pair beam by intergalactic magnetic fields (IGMFs) or an energy loss of the beam due to the electrostatic beam-plasma instability. IGMF of femto-Gauss strength is sufficient to significantly deflect the pair beams reducing the flux of secondary cascade below the observational limits. A similar flux reduction may result in the absence of the IGMF from the beam energy loss by the instability before the inverse Compton cooling. This dissertation consists of two studies about the instability role in the evolution of blazar-induced beams.
Firstly, we investigated the effect of sub-fG level IGMF on the beam energy loss by the instability. Considering IGMF with correlation lengths smaller than a few kpc, we found that such fields increase the transverse momentum of the pair beam particles, dramatically reducing the linear growth rate of the electrostatic instability and hence the energy-loss rate of the pair beam. Our results show that the IGMF eliminates beam plasma instability as an effective energy-loss agent at a field strength three orders of magnitude below that needed to suppress the secondary cascade emission by magnetic deflection. For intermediate-strength IGMF, we do not know a viable process to explain the observed absence of GeV-scale cascade emission and hence can be excluded.
Secondly, we probed how the beam-plasma instability feeds back on the beam, using a realistic two-dimensional beam distribution. We found that the instability broadens the beam opening angles significantly without any significant energy loss, thus confirming a recent feedback study on a simplified one-dimensional beam distribution. However, narrowing diffusion feedback of the beam particles with Lorentz factors less than 1e6 might become relevant even though initially it is negligible. Finally, when considering the continuous creation of TeV pairs, we found that the beam distribution and the wave spectrum reach a new quasi-steady state, in which the scattering of beam particles persists and the beam opening angle may increase by a factor of hundreds. This new intrinsic scattering of the cascade can result in time delays of around ten years, thus potentially mimicking the IGMF deflection. Understanding the implications on the GeV cascade emission requires accounting for inverse Compton cooling and simulating the beam-plasma system at different points in the IGM.
The mobile-immobile model (MIM) has been established in geoscience in the context of contaminant transport in groundwater. Here the tracer particles effectively immobilise, e.g., due to diffusion into dead-end pores or sorption. The main idea of the MIM is to split the total particle density into a mobile and an immobile density. Individual tracers switch between the mobile and immobile state following a two-state telegraph process, i.e., the residence times in each state are distributed exponentially. In geoscience the focus lies on the breakthrough curve (BTC), which is the concentration at a fixed location over time. We apply the MIM to biological experiments with a special focus on anomalous scaling regimes of the mean squared displacement (MSD) and non-Gaussian displacement distributions. As an exemplary system, we have analysed the motion of tau proteins, that diffuse freely inside axons of neurons. Their free diffusion thereby corresponds to the mobile state of the MIM. Tau proteins stochastically bind to microtubules, which effectively immobilises the tau proteins until they unbind and continue diffusing. Long immobilisation durations compared to the mobile durations give rise to distinct non-Gaussian Laplace shaped distributions. It is accompanied by a plateau in the MSD for initially mobile tracer particles at relevant intermediate timescales. An equilibrium fraction of initially mobile tracers gives rise to non-Gaussian displacements at intermediate timescales, while the MSD remains linear at all times. In another setting bio molecules diffuse in a biosensor and transiently bind to specific receptors, where advection becomes relevant in the mobile state. The plateau in the MSD observed for the advection-free setting and long immobilisation durations persists also for the case with advection. We find a new clear regime of anomalous diffusion with non-Gaussian distributions and a cubic scaling of the MSD. This regime emerges for initially mobile and for initially immobile tracers. For an equilibrium fraction of initially mobile tracers we observe an intermittent ballistic scaling of the MSD. The long-time effective diffusion coefficient is enhanced by advection, which we physically explain with the variance of mobile durations. Finally, we generalize the MIM to incorporate arbitrary immobilisation time distributions and focus on a Mittag-Leffler immobilisation time distribution with power-law tail ~ t^(-1-mu) with 0<mu<1 and diverging mean immobilisation durations. A fit of our model to the BTC of experimental data from tracer particles in aquifers matches the BTC including the power-law tail. We use the fit parameters for plotting the displacement distributions and the MSD. We find Gaussian normal diffusion at short times and long-time power-law decay of mobile mass accompanied by anomalous diffusion at long times. The long-time diffusion is subdiffusive in the advection-free setting, while it is either subdiffusive for 0<mu<1/2 or superdiffusive for 1/2<mu<1 when advection is present. In the long-time limit we show equivalence of our model to a bi-fractional diffusion equation.
The Arctic is the hot spot of the ongoing, global climate change. Over the last decades, near-surface temperatures in the Arctic have been rising almost four times faster than on global average. This amplified warming of the Arctic and the associated rapid changes of its environment are largely influenced by interactions between individual components of the Arctic climate system. On daily to weekly time scales, storms can have major impacts on the Arctic sea-ice cover and are thus an important part of these interactions within the Arctic climate. The sea-ice impacts of storms are related to high wind speeds, which enhance the drift and deformation of sea ice, as well as to changes in the surface energy budget in association with air mass advection, which impact the seasonal sea-ice growth and melt.
The occurrence of storms in the Arctic is typically associated with the passage of transient cyclones. Even though the above described mechanisms how storms/cyclones impact the Arctic sea ice are in principal known, there is a lack of statistical quantification of these effects. In accordance with that, the overarching objective of this thesis is to statistically quantify cyclone impacts on sea-ice concentration (SIC) in the Atlantic Arctic Ocean over the last four decades. In order to further advance the understanding of the related mechanisms, an additional objective is to separate dynamic and thermodynamic cyclone impacts on sea ice and assess their relative importance. Finally, this thesis aims to quantify recent changes in cyclone impacts on SIC. These research objectives are tackled utilizing various data sets, including atmospheric and oceanic reanalysis data as well as a coupled model simulation and a cyclone tracking algorithm.
Results from this thesis demonstrate that cyclones are significantly impacting SIC in the Atlantic Arctic Ocean from autumn to spring, while there are mostly no significant impacts in summer. The strength and the sign (SIC decreasing or SIC increasing) of the cyclone impacts strongly depends on the considered daily time scale and the region of the Atlantic Arctic Ocean. Specifically, an initial decrease in SIC (day -3 to day 0 relative to the cyclone) is found in the Greenland, Barents and Kara Seas, while SIC increases following cyclones (day 0 to day 5 relative to the cyclone) are mostly limited to the Barents and Kara Seas.
For the cold season, this results in a pronounced regional difference between overall (day -3 to day 5 relative to the cyclone) SIC-decreasing cyclone impacts in the Greenland Sea and overall SIC-increasing cyclone impacts in the Barents and Kara Seas. A cyclone case study based on a coupled model simulation indicates that both dynamic and thermodynamic mechanisms contribute to cyclone impacts on sea ice in winter. A typical pattern consisting of an initial dominance of dynamic sea-ice changes followed by enhanced thermodynamic ice growth after the cyclone passage was found. This enhanced ice growth after the cyclone passage most likely also explains the (statistical) overall SIC-increasing effects of cyclones in the Barents and Kara Seas in the cold season.
Significant changes in cyclone impacts on SIC over the last four decades have emerged throughout the year. These recent changes are strongly varying from region to region and month to month. The strongest trends in cyclone impacts on SIC are found in autumn in the Barents and Kara Seas. Here, the magnitude of destructive cyclone impacts on SIC has approximately doubled over the last four decades. The SIC-increasing effects following the cyclone passage have particularly weakened in the Barents Sea in autumn. As a consequence, previously existing overall SIC-increasing cyclone impacts in this region in autumn have recently disappeared. Generally, results from this thesis show that changes in the state of the sea-ice cover (decrease in mean sea-ice concentration and thickness) and near-surface air temperature are most important for changed cyclone impacts on SIC, while changes in cyclone properties (i.e. intensity) do not play a significant role.
The increasing number of known exoplanets raises questions about their demographics and the mechanisms that shape planets into how we observe them today. Young planets in close-in orbits are exposed to harsh environments due to the host star being magnetically highly active, which results in high X-ray and extreme UV fluxes impinging on the planet. Prolonged exposure to this intense photoionizing radiation can cause planetary atmospheres to heat up, expand and escape into space via a hydrodynamic escape process known as photoevaporation. For super-Earth and sub-Neptune-type planets, this can even lead to the complete erosion of their primordial gaseous atmospheres. A factor of interest for this particular mass-loss process is the activity evolution of the host star. Stellar rotation, which drives the dynamo and with it the magnetic activity of a star, changes significantly over the stellar lifetime. This strongly affects the amount of high-energy radiation received by a planet as stars age. At a young age, planets still host warm and extended envelopes, making them particularly susceptible to atmospheric evaporation. Especially in the first gigayear, when X-ray and UV levels can be 100 - 10,000 times higher than for the present-day sun, the characteristics of the host star and the detailed evolution of its high-energy emission are of importance.
In this thesis, I study the impact of stellar activity evolution on the high-energy-induced atmospheric mass loss of young exoplanets. The PLATYPOS code was developed as part of this thesis to calculate photoevaporative mass-loss rates over time. The code, which couples parameterized planetary mass-radius relations with an analytical hydrodynamic escape model, was used, together with Chandra and eROSITA X-ray observations, to investigate the future mass loss of the two young multiplanet systems V1298 Tau and K2-198. Further, in a numerical ensemble study, the effect of a realistic spread of activity tracks on the small-planet radius gap was investigated for the first time. The works in this thesis show that for individual systems, in particular if planetary masses are unconstrained, the difference between a young host star following a low-activity track vs. a high-activity one can have major implications: the exact shape of the activity evolution can determine whether a planet can hold on to some of its atmosphere, or completely loses its envelope, leaving only the bare rocky core behind. For an ensemble of simulated planets, an observationally-motivated distribution of activity tracks does not substantially change the final radius distribution at ages of several gigayears. My simulations indicate that the overall shape and slope of the resulting small-planet radius gap is not significantly affected by the spread in stellar activity tracks. However, it can account for a certain scattering or fuzziness observed in and around the radius gap of the observed exoplanet population.
Organic solar cells (OSCs) represent a new generation of solar cells with a range of captivating attributes including low-cost, light-weight, aesthetically pleasing appearance, and flexibility. Different from traditional silicon solar cells, the photon-electron conversion in OSCs is usually accomplished in an active layer formed by blending two kinds of organic molecules (donor and acceptor) with different energy levels together.
The first part of this thesis focuses on a better understanding of the role of the energetic offset and each recombination channel on the performance of these low-offset OSCs. By combining advanced experimental techniques with optical and electrical simulation, the energetic offsets between CT and excitons, several important insights were achieved: 1. The short circuit current density and fill-factor of low-offset systems are largely determined by field-dependent charge generation in such low-offset OSCs. Interestingly, it is strongly evident that such field-dependent charge generation originates from a field-dependent exciton dissociation yield. 2. The reduced energetic offset was found to be accompanied by strongly enhanced bimolecular recombination coefficient, which cannot be explained solely by exciton repopulation from CT states. This implies the existence of another dark decay channel apart from CT.
The second focus of the thesis was on the technical perspective. In this thesis, the influence of optical artifacts in differential absorption spectroscopy upon the change of sample configuration and active layer thickness was studied. It is exemplified and discussed thoroughly and systematically in terms of optical simulations and experiments, how optical artifacts originated from non-uniform carrier profile and interference can manipulate not only the measured spectra, but also the decay dynamics in various measurement conditions. In the end of this study, a generalized methodology based on an inverse optical transfer matrix formalism was provided to correct the spectra and decay dynamics manipulated by optical artifacts.
Overall, this thesis paves the way for a deeper understanding of the keys toward higher PCEs in low-offset OSC devices, from the perspectives of both device physics and characterization techniques.
Astrophysical shocks, driven by explosive events such as supernovae, efficiently accelerate charged particles to relativistic energies. The majority of these shocks occur in collisionless plasmas where the energy transfer is dominated by particle-wave interactions.Strong nonrelativistic shocks found in supernova remnants are plausible sites of galactic cosmic ray production, and the observed emission indicates the presence of nonthermal electrons. To participate in the primary mechanism of energy gain - Diffusive Shock Acceleration - electrons must have a highly suprathermal energy, implying a need for very efficient pre-acceleration. This poorly understood aspect of the shock acceleration theory is known as the electron injection problem. Studying electron-scale phenomena requires the use of fully kinetic particle-in-cell (PIC) simulations, which describe collisionless plasma from first principles.
Most published studies consider a homogenous upstream medium, but turbulence is ubiquitous in astrophysical environments and is typically driven at magnetohydrodynamic scales, cascading down to kinetic scales. For the first time, I investigate how preexisting turbulence affects electron acceleration at nonrelativistic shocks using the fully kinetic approach. To accomplish this, I developed a novel simulation framework that allows the study of shocks propagating in turbulent media. It involves simulating slabs of turbulent plasma separately, which are further continuously inserted into a shock simulation. This demands matching of the plasma slabs at the interface. A new procedure of matching electromagnetic fields and currents prevents numerical transients, and the plasma evolves self-consistently. The versatility of this framework has the potential to render simulations more consistent with turbulent systems in various astrophysical environments.
In this Thesis, I present the results of 2D3V PIC simulations of high-Mach-number nonrelativistic shocks with preexisting compressive turbulence in an electron-ion plasma. The chosen amplitudes of the density fluctuations ($\lesssim15\%$) concord with \textit{in situ} measurements in the heliosphere and the local interstellar medium. I explored how these fluctuations impact the dynamics of upstream electrons, the driving of the plasma instabilities, electron heating and acceleration. My results indicate that while the presence of the turbulence enhances variations in the upstream magnetic field, their levels remain too low to influence the behavior of electrons at perpendicular shocks significantly. However, the situation is different at oblique shocks. The external magnetic field inclined at an angle between $50^\circ \lesssim \theta_\text{Bn} \lesssim 75^\circ$ relative to the shock normal allows the escape of fast electrons toward the upstream region. An extended electron foreshock region is formed, where these particles drive various instabilities. Results of an oblique shock with $\theta_\text{Bn}=60^\circ$ propagating in preexisting compressive turbulence show that the foreshock becomes significantly shorter, and the shock-reflected electrons have higher temperatures. Furthermore, the energy spectrum of downstream electrons shows a well-pronounced nonthermal tail that follows a power law with an index up to -2.3.
The methods and results presented in this Thesis could serve as a starting point for more realistic modeling of interactions between shocks and turbulence in plasmas from first principles.
Massive stars (Mini > 8 Msol) are the key feedback agents within galaxies, as they shape their surroundings via their powerful winds, ionizing radiation, and explosive supernovae. Most massive stars are born in binary systems, where interactions with their companions significantly alter their evolution and the feedback they deposit in their host galaxy. Understanding binary evolution, particularly in the low-metallicity environments as proxies for the Early Universe, is crucial for interpreting the rest-frame ultraviolet spectra observed in high-redshift galaxies by telescopes like Hubble and James Webb.
This thesis aims to tackle this challenge by investigating in detail massive binaries within the low-metallicity environment of the Small Magellanic Cloud galaxy. From ultraviolet and multi-epoch optical spectroscopic data, we uncovered post-interaction binaries. To comprehensively characterize these binary systems, their stellar winds, and orbital parameters, we use a multifaceted approach. The Potsdam Wolf-Rayet stellar atmosphere code is employed to obtain the stellar and wind parameters of the stars. Additionally, we perform consistent light and radial velocity fitting with the Physics of Eclipsing Binaries software, allowing for the independent determination of orbital parameters and component masses. Finally, we utilize these results to challenge the standard picture of stellar evolution and improve our understanding of low-metallicity stellar populations by calculating our binary evolution models with the Modules for Experiments in Stellar Astrophysics code.
We discovered the first four O-type post-interaction binaries in the SMC (Chapters 2, 5, and 6). Their primary stars have temperatures similar to other OB stars and reside far from the helium zero-age main sequence, challenging the traditional view of binary evolution. Our stellar evolution models suggest this may be due to enhanced mixing after core-hydrogen burning. Furthermore, we discovered the so-far most massive binary system undergoing mass transfer (Chapter 3), offering a unique opportunity to test mass-transfer efficiency in extreme conditions. Our binary evolution calculations revealed unexpected evolutionary pathways for accreting stars in binaries, potentially providing the missing link to understanding the observed Wolf-Rayet population within the SMC (Chapter 4). The results presented in this thesis unveiled the properties of massive binaries at low-metallicity which challenge the way the spectra of high-redshift galaxies are currently being analyzed as well as our understanding of massive-star feedback within galaxies.
On the effects of disorder on the ability of oscillatory or directional dynamics to synchronize
(2024)
In this thesis I present a collection of publications of my work, containing analytic results and observations in numerical experiments on the effects of various inhomogeneities, on the ability of coupled oscillators to synchronize their collective dynamics. Most of these works are concerned with the effects of Gaussian and non-Gaussian noise acting on the phase of autonomous oscillators (Secs. 2.1-2.4) or on the direction of higher dimensional state vectors (Secs. 2.5,2.6). I obtain exact and approximate solutions to the non-linear equations governing the distributions of phases, or perform linear stability analysis of the uniform distribution to obtain the transition point from a completely disordered state to partial order or more complicated collective behavior. Other inhomogeneities, that can affect synchronization of coupled oscillators, are irregular, chaotic oscillations or a complex, and possibly random structure in the coupling network. In Section 2.9 I present a new method to define the phase- and frequency linear response function for chaotic oscillators. In Sections 2.4, 2.7 and 2.8 I study synchronization in complex networks of coupled oscillators. Each section in Chapter 2 - Manuscripts, is devoted to one research paper and begins with a list of the main results, a description of my contributions to the work and a short account of the scientific context, i.e. the questions and challenges which started the research and the relation of the work to my other research projects. The manuscripts in this thesis are reproductions of the arXiv versions, i.e. preprints under the creative commons licence.
Laser induced switching offers an attractive possibility to manipulate small magnetic domains for prospective memory and logic devices on ultrashort time scales. Moreover, optical control of magnetization without high applied magnetic fields allows manipulation of magnetic domains individually and locally, without expensive heat dissipation. One of the major challenges for developing novel optically controlled magnetic memory and logic devices is reliable formation and annihilation of non-volatile magnetic domains that can serve as memory bits in ambient conditions. Magnetic skyrmions, topologically nontrivial spin textures, have been studied intensively since their discovery due to their stability and scalability in potential spintronic devices. However, skyrmion formation and, especially, annihilation processes are still not completely understood and further investigation on such mechanisms are needed. The aim of this thesis is to contribute to better understanding of the physical processes behind the optical control of magnetism in thin films, with the goal of optimizing material parameters and methods for their potential use in next generation memory and logic devices.
First part of the thesis is dedicated to investigation of all-optical helicity-dependent switching (AO-HDS) as a method for magnetization manipulation. AO-HDS in Co/Pt multilayer and CoFeB alloys with and without the presence of Dzyaloshinskii-Moriya interaction (DMI), which is a type of exchange interaction, have been investigated by magnetic imaging using photo-emission electron microscopy (PEEM) in combination with X-ray magnetic circular dichroism (XMCD). The results show that in a narrow range of the laser fluence, circularly polarized laser light induces a drag on domain walls. This enables a local deterministic transformation of the magnetic domain pattern from stripes to bubbles in out-of-plane magnetized Co/Pt multilayers, only controlled by the helicity of ultrashort laser pulses. The temperature and characteristic fields at which the stripe-bubble transformation occurs has been calculated using theory for isolated magnetic bubbles, using as parameters experimentally determined average size of stripe domains and the magnetic layer thickness.
The second part of the work aims at purely optical formation and annihilation of magnetic skyrmions by a single laser pulse. The presence of a skyrmion phase in the investigated CoFeB alloys was first confirmed using a Kerr microscope. Then the helicity-dependent skyrmion manipulation was studied using AO-HDS at different laser fluences. It was found that formation or annihilation individual skyrmions using AO-HDS is possible, but not always reliable, as fluctuations in the laser fluence or position can easily overwrite the helicity-dependent effect of AO-HDS. However, the experimental results and magnetic simulations showed that the threshold values for the laser fluence for the formation and annihilation of skyrmions are different. A higher fluence is required for skyrmion formation, and existing skyrmions can be annihilated by pulses with a slightly lower fluence. This provides a further option for controlling formation and annihilation of skyrmions using the laser fluence. Micromagnetic simulations provide additional insights into the formation and annihilation mechanism.
The ability to manipulate the magnetic state of individual skyrmions is of fundamental importance for magnetic data storage technologies. Our results show for the first time that the optical formation and annihilation of skyrmions is possible without changing the external field. These results enable further investigations to optimise the magnetic layer to maximise the energy gap between the formation and annihilation barrier. As a result, unwanted switching due to small laser fluctuations can be avoided and fully deterministic optical switching can be achieved.
Galaxy morphology is a fossil record of how galaxies formed and evolved and can be regarded as a function of the dynamical state of a galaxy. It encodes the physical processes that dominate its evolutionary history, and is strongly aligned with physical properties like stellar mass, star formation rate and local environment. At a distance of ∼50 and 60 kpc, the Magellanic Clouds represent the nearest interacting pair of dwarf irregular galaxies to the Milky Way, rendering them an important test bed for galaxy morphology in the context of galaxy interactions and the effect of the local environment in which they reside. The Large Magellanic Cloud is classified as the prototype for Magellanic Spiral galaxies, with one prominent spiral arm, an offset bar and an inclined rotating disc while the Small Magellanic Cloud is classified as a dwarf Irregular galaxy and is known for its unstructured shape and large depth across the line–of–sight. Resolved stellar populations are powerful probes of a wide range of astrophysical phenomena, the proximity of the Magellanic Clouds allows us to resolve their stellar populations to individual stars that share coherent chemical and age distributions. The coherent properties of resolved stellar populations enable us to analyse them as a function of position within the Magellanic Clouds, offering a picture of the growth of the galaxies’ substructures over time and yielding a comprehensive view of their morphology. Furthermore, investigating the kinematics of the Magellanic Clouds offers valuable insights into their dynamics and evolutionary history. By studying the motions and velocities of stars within these galaxies, we can trace their past interactions, with the Milky Way or with each other and unravel the complex interplay of forces that have influenced the Magellanic Clouds’ formation and evolution.
In Chapter 2, the VISTA survey of the Magellanic Clouds was employed to generate unprecedented high-resolution morphological maps of the Magellanic Clouds in the near-infrared. Utilising colour-magnitude diagrams and theoretical evolutionary models to segregate stellar populations, this approach enabled a comprehensive age tomography of the galaxies. It revealed previously uncharacterised features in their central regions at spatial resolutions of 0.13 kpc (Large Magellanic Cloud) and 0.16 kpc (Small Magellanic Cloud), the findings showcased the impact of tidal interactions on their inner regions. Notably, the study highlighted the enhanced coherent structures in the Large Magellanic Cloud, shedding light on the significant role of the recent Magellanic Clouds’ interaction 200 Myr ago in shaping many of the fine structures. The Small Magellanic Cloud revealed asymmetry in younger populations and irregularities in intermediate-age ones, pointing towards the influence of past tidal interactions.
In Chapter 3, an examination of the outskirts of the Magellanic Clouds led to the identification of new substructures through the use of near-infrared photometry from the VISTA Hemisphere Survey and multi-dimensional phase-space information from Gaia. The distances and proper motions of these substructures were investigated. This analysis revealed the impact of past Magellanic Clouds’ interactions and the influence of the Milky Way’s tidal field on the morphology and kinematics of the Magellanic Clouds. A bi-modal distance distribution was identified within the luminosity function of the red clump stars in the Small Magellanic Cloud, notably in its eastern regions, with the foreground substructure being attributed to the Magellanic Clouds’ interaction around 200 Myr ago. Furthermore, associations with the Counter Bridge and Old Bridge were uncovered through the detection of background and foreground structures in various regions of the SMC.
In chapter 4, a detailed kinematic analysis of the Small Magellanic Cloud was conducted using spectra from the European Southern Observatory Science Archive Facility. The study reveals distinct kinematics in the Wing and bar regions, attributed to interactions with the Large Magellanic Cloud and variations in star formation history. Notably, velocity disparities are observed in the bar’s young main sequence stars, aligning with specific star-forming episodes, and suggesting potential galactic stretching or tidal stripping, as corroborated by proper motion studies.
Improving permafrost dynamics in land surface models: insights from dual sensitivity experiments
(2024)
The thawing of permafrost and the subsequent release of greenhouse gases constitute one of the most significant and uncertain positive feedback loops in the context of climate change, making predictions regarding changes in permafrost coverage of paramount importance. To address these critical questions, climate scientists have developed Land Surface Models (LSMs) that encompass a multitude of physical soil processes. This thesis is committed to advancing our understanding and refining precise representations of permafrost dynamics within LSMs, with a specific focus on the accurate modeling of heat fluxes, an essential component for simulating permafrost physics.
The first research question overviews fundamental model prerequisites for the representation of permafrost soils within land surface modeling. It includes a first-of-its-kind comparison between LSMs in CMIP6 to reveal their differences and shortcomings in key permafrost physics parameters. Overall, each of these LSMs represents a unique approach to simulating soil processes and their interactions with the climate system. Choosing the most appropriate model for a particular application depends on factors such as the spatial and temporal scale of the simulation, the specific research question, and available computational resources.
The second research question evaluates the performance of the state-of-the-art Community Land Model (CLM5) in simulating Arctic permafrost regions. Our approach overcomes traditional evaluation limitations by individually addressing depth, seasonality, and regional variations, providing a comprehensive assessment of permafrost and soil temperature dynamics. I compare CLM5's results with three extensive datasets: (1) soil temperatures from 295 borehole stations, (2) active layer thickness (ALT) data from the Circumpolar Active Layer Monitoring Network (CALM), and (3) soil temperatures, ALT, and permafrost extent from the ESA Climate Change Initiative (ESA-CCI). The results show that CLM5 aligns well with ESA-CCI and CALM for permafrost extent and ALT but reveals a significant global cold temperature bias, notably over Siberia. These results echo a persistent challenge identified in numerous studies: the existence of a systematic 'cold bias' in soil temperature over permafrost regions. To address this challenge, the following research questions propose dual sensitivity experiments.
The third research question represents the first study to apply a Plant Functional Type (PFT)-based approach to derive soil texture and soil organic matter (SOM), departing from the conventional use of coarse-resolution global data in LSMs. This novel method results in a more uniform distribution of soil organic matter density (OMD) across the domain, characterized by reduced OMD values in most regions. However, changes in soil texture exhibit a more intricate spatial pattern. Comparing the results to observations reveals a significant reduction in the cold bias observed in the control run. This method shows noticeable improvements in permafrost extent, but at the cost of an overestimation in ALT. These findings emphasize the model's high sensitivity to variations in soil texture and SOM content, highlighting the crucial role of soil composition in governing heat transfer processes and shaping the seasonal variation of soil temperatures in permafrost regions.
Expanding upon a site experiment conducted in Trail Valley Creek by \citet{dutch_impact_2022}, the fourth research question extends the application of the snow scheme proposed by \citet{sturm_thermal_1997} to cover the entire Arctic domain. By employing a snow scheme better suited to the snow density profile observed over permafrost regions, this thesis seeks to assess its influence on simulated soil temperatures. Comparing this method to observational datasets reveals a significant reduction in the cold bias that was present in the control run. In most regions, the Sturm run exhibits a substantial decrease in the cold bias. However, there is a distinctive overshoot with a warm bias observed in mountainous areas. The Sturm experiment effectively addressed the overestimation of permafrost extent in the control run, albeit resulting in a substantial reduction in permafrost extent over mountainous areas. ALT results remain relatively consistent compared to the control run. These outcomes align with our initial hypothesis, which anticipated that the reduced snow insulation in the Sturm run would lead to higher winter soil temperatures and a more accurate representation of permafrost physics.
In summary, this thesis demonstrates significant advancements in understanding permafrost dynamics and its integration into LSMs. It has meticulously unraveled the intricacies involved in the interplay between heat transfer, soil properties, and snow dynamics in permafrost regions. These insights offer novel perspectives on model representation and performance.
The central gas in half of all galaxy clusters shows short cooling times. Assuming unimpeded cooling, this should lead to high star formation and mass cooling rates, which are not observed. Instead, it is believed that condensing gas is accreted by the central black hole that powers an active galactic nuclei jet, which heats the cluster. The detailed heating mechanism remains uncertain. A promising mechanism invokes cosmic ray protons that scatter on self-generated magnetic fluctuations, i.e. Alfvén waves. Continuous damping of Alfvén waves provides heat to the intracluster medium. Previous work has found steady state solutions for a large sample of clusters where cooling is balanced by Alfvénic wave heating. To verify modeling assumptions, we set out to study cosmic ray injection in three-dimensional magnetohydrodynamical simulations of jet feedback in an idealized cluster with the moving-mesh code arepo. We analyze the interaction of jet-inflated bubbles with the turbulent magnetized intracluster medium.
Furthermore, jet dynamics and heating are closely linked to the largely unconstrained jet composition. Interactions of electrons with photons of the cosmic microwave background result in observational signatures that depend on the bubble content. Those recent observations provided evidence for underdense bubbles with a relativistic filling while adopting simplifying modeling assumptions for the bubbles. By reproducing the observations with our simulations, we confirm the validity of their modeling assumptions and as such, confirm the important finding of low-(momentum) density jets.
In addition, the velocity and magnetic field structure of the intracluster medium have profound consequences for bubble evolution and heating processes. As velocity and magnetic fields are physically coupled, we demonstrate that numerical simulations can help link and thereby constrain their respective observables. Finally, we implement the currently preferred accretion model, cold accretion, into the moving-mesh code arepo and study feedback by light jets in a radiatively cooling magnetized cluster. While self-regulation is attained independently of accretion model, jet density and feedback efficiencies, we find that in order to reproduce observed cold gas morphology light jets are preferred.
In recent decades, astronomy has seen a boom in large-scale stellar surveys of the Galaxy. The detailed information obtained about millions of individual stars in the Milky Way is bringing us a step closer to answering one of the most outstanding questions in astrophysics: how do galaxies form and evolve? The Milky Way is the only galaxy where we can dissect many stars into their high-dimensional chemical composition and complete phase space, which analogously as fossil records can unveil the past history of the genesis of the Galaxy. The processes that lead to large structure formation, such as the Milky Way, are critical for constraining cosmological models; we call this line of study Galactic archaeology or near-field cosmology.
At the core of this work, we present a collection of efforts to chemically and dynamically characterise the disks and bulge of our Galaxy. The results we present in this thesis have only been possible thanks to the advent of the Gaia astrometric satellite, which has revolutionised the field of Galactic archaeology by precisely measuring the positions, parallax distances and motions of more than a billion stars. Another, though not less important, breakthrough is the APOGEE survey, which has observed spectra in the near-infrared peering into the dusty regions of the Galaxy, allowing us to determine detailed chemical abundance patterns in hundreds of thousands of stars. To accurately depict the Milky Way structure, we use and develop the Bayesian isochrone fitting tool/code called StarHorse; this software can predict stellar distances, extinctions and ages by combining astrometry, photometry and spectroscopy based on stellar evolutionary models. The StarHorse code is pivotal to calculating distances where Gaia parallaxes alone cannot allow accurate estimates.
We show that by combining Gaia, APOGEE, photometric surveys and using StarHorse, we can produce a chemical cartography of the Milky way disks from their outermost to innermost parts. Such a map is unprecedented in the inner Galaxy. It reveals a continuity of the bimodal chemical pattern previously detected in the solar neighbourhood, indicating two populations with distinct formation histories. Furthermore, the data reveals a chemical gradient within the thin disk where the content of 𝛼-process elements and metals is higher towards the centre. Focusing on a sample in the inner MW we confirm the extension of the chemical duality to the innermost regions of the Galaxy. We find stars with bar shape orbits to show both high- and low-𝛼 abundances, suggesting the bar formed by secular evolution trapping stars that already existed. By analysing the chemical orbital space of the inner Galactic regions, we disentangle the multiple populations that inhabit this complex region. We reveal the presence of the thin disk, thick disk, bar, and a counter-rotating population, which resembles the outcome of a perturbed proto-Galactic disk. Our study also finds that the inner Galaxy holds a high quantity of super metal-rich stars up to three times solar suggesting it is a possible repository of old super-metal-rich stars found in the solar neighbourhood.
We also enter into the complicated task of deriving individual stellar ages. With StarHorse, we calculate the ages of main-sequence turn-off and sub-giant stars for several public spectroscopic surveys. We validate our results by investigating linear relations between chemical abundances and time since the 𝛼 and neutron capture elements are sensitive to age as a reflection of the different enrichment timescales of these elements. For further study of the disks in the solar neighbourhood, we use an unsupervised machine learning algorithm to delineate a multidimensional separation of chrono-chemical stellar groups revealing the chemical thick disk, the thin disk, and young 𝛼-rich stars. The thick disk is shown to have a small age dispersion indicating its fast formation contrary to the thin disk that spans a wide range of ages.
With groundbreaking data, this thesis encloses a detailed chemo-dynamical view of the disk and bulge of our Galaxy. Our findings on the Milky Way can be linked to the evolution of high redshift disk galaxies, helping to solve the conundrum of galaxy formation.
Cosmic rays (CRs) constitute an important component of the interstellar medium (ISM) of galaxies and are thought to play an essential role in governing their evolution. In particular, they are able to impact the dynamics of a galaxy by driving galactic outflows or heating the ISM and thereby affecting the efficiency of star-formation. Hence, in order to understand galaxy formation and evolution, we need to accurately model this non-thermal constituent of the ISM. But except in our local environment within the Milky Way, we do not have the ability to measure CRs directly in other galaxies. However, there are many ways to indirectly observe CRs via the radiation they emit due to their interaction with magnetic and interstellar radiation fields as well as with the ISM.
In this work, I develop a numerical framework to calculate the spectral distribution of CRs in simulations of isolated galaxies where a steady-state between injection and cooling is assumed. Furthermore, I calculate the non-thermal emission processes arising from the modelled CR proton and electron spectra ranging from radio wavelengths up to the very high-energy gamma-ray regime.
I apply this code to a number of high-resolution magneto-hydrodynamical (MHD) simulations of isolated galaxies, where CRs are included. This allows me to study their CR spectra and compare them to observations of the CR proton and electron spectra by the Voyager-1 satellite and the AMS-02 instrument in order to reveal the origin of the measured spectral features.
Furthermore, I provide detailed emission maps, luminosities and spectra of the non-thermal emission from our simulated galaxies that range from dwarfs to Milk-Way analogues to starburst galaxies at different evolutionary stages. I successfully reproduce the observed relations between the radio and gamma-ray luminosities with the far-infrared (FIR) emission of star-forming (SF) galaxies, respectively, where the latter is a good tracer of the star-formation rate. I find that highly SF galaxies are close to the limit where their CR population would lose all of their energy due to the emission of radiation, whereas CRs tend to escape low SF galaxies more quickly. On top of that, I investigate the properties of CR transport that are needed in order to match the observed gamma-ray spectra.
Furthermore, I uncover the underlying processes that enable the FIR-radio correlation (FRC) to be maintained even in starburst galaxies and find that thermal free-free-emission naturally explains the observed radio spectra in SF galaxies like M82 and NGC 253 thus solving the riddle of flat radio spectra that have been proposed to contradict the observed tight FRC.
Lastly, I scrutinise the steady-state modelling of the CR proton component by investigating for the first time the influence of spectrally resolved CR transport in MHD simulations on the hadronic gamma-ray emission of SF galaxies revealing new insights into the observational signatures of CR transport both spectrally and spatially.
In this work, binding interactions between biomolecules were analyzed by a technique that is based on electrically controllable DNA nanolevers. The technique was applied to virus-receptor interactions for the first time. As receptors, primarily peptides on DNA nanostructures and antibodies were utilized. The DNA nanostructures were integrated into the measurement technique and enabled the presentation of the peptides in a controllable geometrical order. The number of peptides could be varied to be compatible to the binding sites of the viral surface proteins.
Influenza A virus served as a model system, on which the general measurability was demonstrated. Variations of the receptor peptide, the surface ligand density, the measurement temperature and the virus subtypes showed the sensitivity and applicability of the technology. Additionally, the immobilization of virus particles enabled the measurement of differences in oligovalent binding of DNA-peptide nanostructures to the viral proteins in their native environment.
When the coronavirus pandemic broke out in 2020, work on binding interactions of a peptide from the hACE2 receptor and the spike protein of the SARS-CoV-2 virus revealed that oligovalent binding can be quantified in the switchSENSE technology. It could also be shown that small changes in the amino acid sequence of the spike protein resulted in complete loss of binding. Interactions of the peptide and inactivated virus material as well as pseudo virus particles could be measured. Additionally, the switchSENSE technology was utilized to rank six antibodies for their binding affinity towards the nucleocapsid protein of SARS-CoV-2 for the development of a rapid antigen test device.
The technique was furthermore employed to show binding of a non-enveloped virus (adenovirus) and a virus-like particle (norovirus-like particle) to antibodies. Apart from binding interactions, the use of DNA origami levers with a length of around 50 nm enabled the switching of virus material. This proved that the technology is also able to size objects with a hydrodynamic diameter larger than 14 nm.
A theoretical work on diffusion and reaction-limited binding interactions revealed that the technique and the chosen parameters enable the determination of binding rate constants in the reaction-limited regime.
Overall, the applicability of the switchSENSE technique to virus-receptor binding interactions could be demonstrated on multiple examples. While there are challenges that remain, the setup enables the determination of affinities between viruses and receptors in their native environment. Especially the possibilities regarding the quantification of oligo- and multivalent binding interactions could be presented.