Refine
Year of publication
- 2012 (292) (remove)
Document Type
- Doctoral Thesis (292) (remove)
Language
- English (158)
- German (129)
- Spanish (3)
- Italian (1)
- Multiple languages (1)
Keywords
- Korrosion (3)
- Nanopartikel (3)
- corrosion (3)
- Blickbewegungen (2)
- Computationale Modellierung (2)
- Evaluation (2)
- Fernerkundung (2)
- Fluoreszenzmikroskopie (2)
- Klimawandel (2)
- Lake sediments (2)
- Machine Learning (2)
- Magnetismus (2)
- Maschinelles Lernen (2)
- Mikrotubuli (2)
- Organisationstheorie (2)
- Parasit (2)
- Quantenpunkte (2)
- climate change (2)
- computational modeling (2)
- evaluation (2)
- fluorescence microscopy (2)
- nanoparticles (2)
- quantum dots (2)
- remote sensing (2)
- stochastic processes (2)
- stochastische Prozesse (2)
- AC -Impedance (1)
- AC Impedanz (1)
- ATP hydrolysis (1)
- ATP-Hydrolyse (1)
- ATRP (1)
- Abbau (1)
- Abbau von Boten-RNS (1)
- Abstandsverteilungen (1)
- Active Evaluation (1)
- Adhesion (1)
- Adhäsion (1)
- Adsorption (1)
- Adversarial Learning (1)
- Aerogele (1)
- Aerogels (1)
- Africa (1)
- Afrika (1)
- Agglomerate (1)
- Aggregates (1)
- Aggressivität (1)
- Agonisteninteraktion (1)
- Aktinfilamente (1)
- Aktionsraum (1)
- Aktive Evaluierung (1)
- Allometrie (1)
- Aluminiumlegierung (1)
- Amphiphile Polymere (1)
- Angewandte Spieltheorie (1)
- Anisotrope Inversion (1)
- Anisotropie der Leitfähigkeit (1)
- Anpassung (1)
- Anrege-Abtast Spektroskopie (1)
- Antireduktionismus (1)
- Apodemus (1)
- Apollo (1)
- Applied Game Theory (1)
- Aquifer (1)
- Arbuskuläre Mykorrhiza (1)
- Arctic (1)
- Arktis (1)
- Artengemeinschaft (1)
- Assoziative Verdicker (1)
- Athlet (1)
- Atom Transfer Radical Polymerization (1)
- Atom-Chips (1)
- Atom-Oberflächenwechselwirkung (1)
- Atrophin-1 (1)
- Aufstiegsmobilität (1)
- Augmented Reality (1)
- BLUF (1)
- Bayes-Entscheidungstheorie (1)
- Bayesian inference (1)
- Bayesian statistical decision theory (1)
- Bayessche Statistik (1)
- Behavior (1)
- Berlin (1)
- Beschichtungen (1)
- Beta-Zelle (1)
- Betulin (1)
- Bewegung (1)
- Bi2Se3 (1)
- Bi2Te3 (1)
- Bioconjugation (1)
- Biofilme (1)
- Bioinformatik (1)
- Biokonjugation (1)
- Biomass (1)
- Biomasse (1)
- Biosensor (1)
- Bittergeschmack (1)
- Blattalterung (1)
- Blockcopolymere (1)
- Bodenfeuchte (1)
- CESA Komplex (1)
- CXCL10 (1)
- Calliphora (1)
- Carbon materials (1)
- Case study (1)
- Centrosom (1)
- Centrosome (1)
- Channel Transmission Losses (1)
- Channeling (1)
- Chaos (1)
- Chelate (1)
- Chiroptera (1)
- Chlamydomonas (1)
- Chloroplast (1)
- Click Chemistry (1)
- Click chemistry (1)
- Climate change (1)
- Climate reconstruction (1)
- Cluster Entwicklung (1)
- Cluster expansion (1)
- Co-Evolution (1)
- Cokultur (1)
- Collagenase (1)
- Composition (1)
- Copolymere (1)
- Copper Phthalocyanine (1)
- DDR (1)
- DNA (1)
- DNA Ejektion (1)
- DNA ejection (1)
- DRB Evolution (1)
- DRB evolution (1)
- Datenanalyse (1)
- Datenverwendung (1)
- Degradation (1)
- Degradation of messenger RNA (1)
- Degradom (1)
- Delomys (1)
- Depolymerisation (1)
- Determinantal point processes (1)
- Deutschland (1)
- Diabetes (1)
- Dictyostelium (1)
- Dielektrische Funktion (1)
- Diffusion (1)
- Dionysos (1)
- Dirac-harmonic maps (1)
- Dirac-harmonische Abbildungen (1)
- Dryland Rivers (1)
- Dualitätsformeln (1)
- Effektheterogenität (1)
- Einkapselung (1)
- Einkommen (1)
- Elastizitätsmodul (1)
- Electric power production (1)
- Electrocatalysis (1)
- Elektrizitätsmarkt (1)
- Elektrokatalyse (1)
- Emissionshandel (1)
- Enegieanwendungen (1)
- Energieausbreitung (1)
- Energy Applications (1)
- Entwicklungsländer (1)
- Entzündung (1)
- Erbschaft (1)
- Error Estimation (1)
- Erweiterte Realität (1)
- Erziehung (1)
- Erziehungsheim (1)
- Essstörung (1)
- Evaluationsfunktion (1)
- Excellence (1)
- Eye movements (1)
- Eyring-Kramers Formel (1)
- FRET (1)
- Fallstudie (1)
- Fehlerschätzung (1)
- Fest-Flüssig-Extraktion (1)
- Festelektrolyten (1)
- Festkörperphysik (1)
- Fibroblasten (1)
- Finsler geometry (1)
- Fixationdauern (1)
- Fixationspositionen (1)
- Fixationssequenzen (1)
- Fledermäuse (1)
- Flood Forecasting (1)
- Flüssig-Flüssig-Extraktion (1)
- Folgenabschätzung (1)
- Formgedächtnispolymere (1)
- Forschungsdatenzentrum (1)
- Fortpflanzung (1)
- Frequenz (1)
- Functionalization (1)
- Funktionalisierung (1)
- Fusarium (1)
- Fußgängernavigation (1)
- G-protein-coupled receptors (1)
- GDR (1)
- GIS (1)
- GPCR (1)
- Gaspermeation (1)
- Gaylussite (1)
- Gebäudemodelle (1)
- Gedankenschweifen (1)
- Gedankenverlorenes Lesen (1)
- Gelatin (1)
- Gelatine (1)
- Geländemodelle (1)
- Generalisierung (1)
- Genexpression (1)
- Germany (1)
- Geschmack (1)
- Gesundheitswesen (1)
- Gibbs point processes (1)
- Gibbssche Punktprozesse (1)
- Glucolipotoxizität (1)
- Gold (1)
- Gradient flow (1)
- Gradientenfluss (1)
- Gravitationswellen (1)
- Green Chemistry (1)
- Grüne Chemie (1)
- Gute-Gene (1)
- HHH Theorien (1)
- Hanoi (1)
- Harnstoff-Glas-Route (1)
- Haushalt (1)
- Health Care (1)
- Heat Flow (1)
- Hemisphärenunterschiede (1)
- Hermeneutik (1)
- Heteroatom Doping (1)
- Heteroatom-Dotierung (1)
- Heteroatom-dotierte Kohlenstoffe (1)
- Higher education (1)
- Hochleistungssport (1)
- Hochschulbildung (1)
- Hochwasservorhersage (1)
- Hohlkugeln (1)
- Hollow Spheres (1)
- Homologiemodellierung (1)
- Household (1)
- Hurst exponent (1)
- Hurst-Exponent (1)
- Hyaluronic acid (1)
- Hyaluronsäure (1)
- Hydrodynamik (1)
- Hydrological Modelling (1)
- Hydrological extremes (1)
- Hydrophilie (1)
- Hydrothermal Carbonization (1)
- Hydrothermale Karbonisierung (1)
- Identifizierung berühmter Personen (1)
- Indian summer monsoon (1)
- Indische Sommer Monsun (1)
- Individuen (1)
- Inflammation (1)
- Institution (1)
- Inszenierung (1)
- Intergalaktisches Medium (1)
- Intimahyperplasie (1)
- Intimal Hyperplasia (1)
- Investments environmental aspects (1)
- Jahresabschlussanalyse (1)
- Jugend (1)
- Jugendalter (1)
- Keimbildung und Wachstum (1)
- Keratinozyten (1)
- Kerndynamik (1)
- Klick-Chemie (1)
- Klickchemie (1)
- Klimarekonstruktion (1)
- Kohlenhydrat Erkennung (1)
- Kohlenmaterialien (1)
- Kollagenase (1)
- Kommunikation (1)
- Kompetenzentwicklung (1)
- Komposition (1)
- Konfliktgeschichte (1)
- Korruption (1)
- Kosmologie (1)
- Kultur (1)
- Kupferphthalocyanin (1)
- LCST (1)
- Ladungstransport (1)
- Land Reform (1)
- Land use change (1)
- Landmarken (1)
- Landnutzung (1)
- Landwirtschaft (1)
- Lanthanoidkomplexe (1)
- Leaf senescence (1)
- Learning interaction (1)
- Lehrergesundheit (1)
- Lehrertraining (1)
- Lern-Interaktion (1)
- Levels-of-inattention Hypothese (1)
- Levy Maß (1)
- Levy measure (1)
- Li-Batterien (1)
- Li-batteries (1)
- Liberalisierung (1)
- Ligandendesign (1)
- Lithium ion battery (1)
- Lithium-Ionen-Batterie (1)
- Lonar lake (1)
- Lonarsee (1)
- MHC (1)
- MHC Klasse II (1)
- MHC polymorphism (1)
- Machtkampf (1)
- Magnetisierungsdynamik (1)
- Magnetotellurik (1)
- Management (1)
- Medicago truncatula (1)
- Megamodel (1)
- Megamodell (1)
- Metabolische Netzwerke (1)
- Metacognitive strategies (1)
- Metakognitionsstrategien (1)
- Metallnitrid-Kohlenstoff Komposite (1)
- Metastabilität (1)
- Microorganisms (1)
- Microtubules (1)
- Mikroorganismen (1)
- Mikroökonometrie (1)
- Ministerial bureaucracy (1)
- Ministerialverwaltung (1)
- Mitose (1)
- Mitosis (1)
- Model Management (1)
- Model-Driven Engineering (1)
- Modeling (1)
- Modell (1)
- Modell Management (1)
- Modellgetriebene Entwicklung (1)
- Modellierung (1)
- Modifizierung von Polymeren (1)
- Molecular Aging (1)
- Molekulares Altern (1)
- Mondsee (1)
- Morphologie von Kapseln (1)
- Musikinstrumente (1)
- Mycorrhiza (1)
- Mycorrhizal symbiosis (1)
- Mykorrhiza (1)
- Mykorrhizasymbiose (1)
- Mykotoxine (1)
- Mythos (1)
- NZO (1)
- Nachhaltigkeit (1)
- Nano (1)
- Nanostruktur (1)
- Nanostäbchen (1)
- Nanotechnologie (1)
- Narziss (1)
- Naturstoff (1)
- Navigation (1)
- Neointima (1)
- Netzwerke (1)
- Neue Kulturgeographie (1)
- Neuoffenbarungen (1)
- New Revelations (1)
- Nichtexponentieller Zerfall von mRNA (1)
- Nitride (1)
- Nitrides (1)
- Noctilio albiventris (1)
- Non-exponential mRNA decay (1)
- Nucleus (1)
- Nullmodell (1)
- Numerische Relativitätstheorie (1)
- OFET (1)
- Oberflächen (1)
- Oberflächenfunktionalisierung (1)
- Oberflächenladung (1)
- Oberflächenplasmonenlasmonen (1)
- Oberflächenzustände (1)
- Organic Solar Cell (1)
- Organisationslernen (1)
- Organische Solarzellen (1)
- Organization theory (1)
- Oxinitride (1)
- Oxynitrides (1)
- Paleofloods (1)
- Palladium (1)
- Paläohochwasser (1)
- Parasite (1)
- Parasiten (1)
- Parasites (1)
- Partei (1)
- Partizipation (1)
- Performance (1)
- Performance Management (1)
- Performance-Informationen (1)
- Persönlichkeit (1)
- Pflanzenwachstum (1)
- Phage HK620 (1)
- Phagen Infektion (1)
- Phononen (1)
- Phonotaktik (1)
- Phosphat (1)
- Photoanregung (1)
- Photoexcitation (1)
- Plastome-evolution (1)
- Plastomevolution (1)
- Platzierung (1)
- Polarimetrie (1)
- Polarimetry (1)
- Policy advice (1)
- Politikberatung (1)
- Polyelektrolyte (1)
- Polyeste r (1)
- Polymer Modification (1)
- Polysaccharide (1)
- Poröse Materialien (1)
- Post-Newton (1)
- Post-transcriptional gene regulation (1)
- Posttranskriptionale Genregulation (1)
- Prediction Game (1)
- Predictive Models (1)
- Prime Minister's Office (1)
- Private Revelations (1)
- Privatoffenbarungen (1)
- Process (1)
- Promotor (1)
- Prophecy (1)
- Prophetie (1)
- Prostatakrebs (1)
- Protein Spektroelektrochemie (1)
- Protein spectroelectrochemistry (1)
- Protein-Kohlenhydrat-Interaktion (1)
- Proteinaggregation (1)
- Proteinmissfaltung (1)
- Prozesse (1)
- Prädiktionsspiel (1)
- Quality (1)
- Qualität (1)
- Quanten Optomechanik (1)
- Quantencomputer (1)
- Quantenfluktuationen (1)
- Quantenoptik (1)
- Quantum Optomechanics (1)
- Quantum dynamics (1)
- RAFT (1)
- RAFT polymerisation (1)
- RAFT-Polymerisation (1)
- RNAi (1)
- Randomisierung (1)
- Rasterkraftmikroskop (1)
- Reactive Oxygen Species (1)
- Reaktive Sauerstoffspezies (1)
- Rechenschaftspflicht (1)
- Rechtsstaatlichkeit (1)
- Regierungszentrale (1)
- Regularisierung (1)
- Regulationsweg (1)
- Reichtum (1)
- Rekonfiguration (1)
- Relativismus (1)
- Resistenzmechanismen (1)
- Resonator Quantenelektrodynamik (1)
- Rezeptor (1)
- Riboflavin (1)
- Ring (1)
- Ringe (1)
- Rotationsbeschichtung (1)
- Röntgenspektroskopie (1)
- SAR (1)
- STM (1)
- Salmonella (1)
- Salts (1)
- Salze (1)
- Saturn (1)
- Savanna (1)
- Savanne (1)
- Schul- und Unterrichtsentwicklung (1)
- Schwarze Löcher (1)
- Schwefel-Ligand (1)
- Seesediment (1)
- Seesedimente (1)
- Sektor Staat (1)
- Selbst- und Fremdeinschätzung (1)
- Selbstheilende Beschichtungen (1)
- Selbstorganisation (1)
- Selbstregulation (1)
- Semiklassische Spektralasymptotik (1)
- Sequenzierung (1)
- Serotonin (1)
- Signifikanz (1)
- Silika (1)
- Social Structure (1)
- Social Unequality (1)
- Social networking software (1)
- Sozial Vernetzung Software (1)
- Soziale Ungleichheit (1)
- Sozialstruktur (1)
- Spam Filtering (1)
- Spam-Filter (1)
- Spin Geometrie (1)
- Spin Geometry (1)
- Spin casting (1)
- Spinpolarisation (1)
- Spiritism (1)
- Spiritismus (1)
- Spiti valley (1)
- Spity Valley (1)
- Sportler (1)
- Sprache (1)
- Spracherwerb (1)
- Spracherwerbsstörung (1)
- Sprachphilosophie (1)
- Statistical Tests (1)
- Statistik öffentlicher Unternehmen (1)
- Statistische Tests (1)
- Sternpolymere (1)
- Stimmenverarbeitung (1)
- Stochastic gene expression (1)
- Stochastische Genexpression (1)
- Strahlenbiologie (1)
- Streuung von Schallwellen (1)
- Structuring (1)
- Strukturelle Thermodynamik (1)
- Strukturierung (1)
- Städtebauförderung (1)
- Subsilbe (1)
- Sulfitoxidase (1)
- Superkondensator (1)
- Sustainability (1)
- Synthese (1)
- Systemtheorie (1)
- Tailspike (1)
- Tailspike Protein (1)
- Teilhabe der BürgerInnen (1)
- Thermalisierung (1)
- Thiophen und Benzodithiophen Copolymere (1)
- Thiophene and Benzodithiophene copolymers (1)
- Traceability (1)
- Trainingsevaluation (1)
- Transferverluste in Flüssen (1)
- Transkriptionsfaktor (1)
- Transkriptom (1)
- Transparenz (1)
- Trockenflüsse (1)
- Tunneleffekt (1)
- Ultraschnelle Dynamik (1)
- Uncertainty Analysis (1)
- Unsicherheitsanalyse (1)
- Upward Mobility (1)
- Urea-Glas-Route (1)
- Van der Waals Kräfte (1)
- Van der Waals forces (1)
- Verbflexion (1)
- Verhalten (1)
- Vermögen (1)
- Verschränkung (1)
- Vibronik (1)
- Vielteilchentheorie (1)
- Vorhersagemodelle (1)
- Warven (1)
- Warves (1)
- Water resources (1)
- Web 2.0 (1)
- Weizen (1)
- Well-structuredness (1)
- Wigner Funktion (1)
- Wigner negativity (1)
- Wiki (1)
- Wohlstrukturiertheit (1)
- Wärmefluss (1)
- Xanthindehydrogenase (1)
- Zellkern (1)
- Zellwand (1)
- Zieleffektivitätstraining (1)
- Zirkulardichroismus (1)
- Zytoskelett (1)
- Zählprozesse (1)
- [2+2]-Cycloaddition (1)
- [2+2]-cycloaddition (1)
- ab-initio Dynamik (1)
- ab-initio dynamics (1)
- actin filaments (1)
- active labor market policy (1)
- active polymers (1)
- adapation (1)
- adolescent (1)
- aggregation (1)
- aggressiveness (1)
- agonists interaction (1)
- agriculture (1)
- aktive Arbeitsmarktpolitik (1)
- aktive Polymere (1)
- allometry (1)
- aluminum alloy (1)
- amphiphilic polymers (1)
- angle resolved photoelectron spectroscopy (1)
- anisotropic inversion (1)
- anterior temporal lobes (1)
- anteriorer Temporallappen (1)
- antireductionism (1)
- arbuscular mycorrhiza (1)
- associative thickeners (1)
- atom chips (1)
- atom-surface interaction (1)
- atomic force microscope (1)
- atrophin-1 (1)
- augmented reality (1)
- bacterial O-antigen (1)
- bakterielles O-Antigen (1)
- beta-cell (1)
- biofilm (1)
- biosensor (1)
- bitter taste (1)
- black holes (1)
- block copolymers (1)
- building models (1)
- capsule morphology (1)
- carbohydrate interaction (1)
- carbohydrate recognition (1)
- cavity quantum electrodynamics (1)
- cell wall (1)
- cellular signalling (1)
- cesa complex (1)
- chaos (1)
- charge transfer (1)
- chelates (1)
- circular dichroism (1)
- climate dynamics (1)
- coating (1)
- coculture (1)
- communication (1)
- community (1)
- competence development (1)
- computational biology (1)
- conductivity anisotropy (1)
- conflict (1)
- conjugated small molecules (1)
- continental philosophy (1)
- cooperative transport (1)
- copolymers (1)
- cosmology (1)
- counting process (1)
- crop modeling (1)
- curriculum and lesson plan develop (1)
- cytoskeleton (1)
- data analysis (1)
- data use (1)
- degradome (1)
- depolymerization (1)
- determinantische Punktprozesse (1)
- developing countries (1)
- diabetes (1)
- dielectric function (1)
- diffusion (1)
- discrete Witten complex (1)
- diskreter Witten-Laplace-Operator (1)
- disordered eating (1)
- distance distribution (1)
- duality formulae (1)
- eating disorder (1)
- eco-hydrological modelling (1)
- ectoparasites (1)
- education (1)
- effect heterogeneity (1)
- elastic coupling (1)
- elastic modulus (1)
- elastische Kopplung (1)
- elite athlete (1)
- encapsulation (1)
- energy spreading (1)
- epitaktisch (1)
- epitaxial (1)
- eye movements (1)
- famous speaker recognition (1)
- fibroblasts (1)
- financial statement analysis (1)
- fixation durations (1)
- fixation positions (1)
- fixation sequences (1)
- fixational eye movements (1)
- fixierte Augenbewegungen (1)
- flüssigkristalline Netzwerke (1)
- formale Institution (1)
- fractional Brownian motion (1)
- fractional Gaussian noise (1)
- fraktionale Brown'schen Bewegung (1)
- fraktionales Gauß'sches Rauschen (1)
- frequency (1)
- function of evaluation (1)
- gas permeation (1)
- gene expression (1)
- generalization (1)
- genetic fingerprinting (1)
- genetisches Fingerprinting (1)
- geothermal aquifer (1)
- gequetschte Zustände (1)
- gestörtes Essverhalten (1)
- glucolipotoxicity (1)
- goal effectiveness training (1)
- gold (1)
- good governance (1)
- good-genes-model (1)
- gravitational waves (1)
- gute Regierungsführung (1)
- hTAS2R10 (1)
- hemispheric differences (1)
- hermeneutics (1)
- heteroatom-doped carbons (1)
- home range (1)
- homology modelling (1)
- human geography (1)
- hydrodynamics (1)
- hydrologische Modellierung (1)
- hydrophilicity (1)
- impact assessment (1)
- individual-based model (1)
- infinite divisibility (1)
- infinitely divisible point processes (1)
- informelle Institution (1)
- inscenation (1)
- intergalactic medium (1)
- intracellular transport (1)
- intrazellulärer Transport (1)
- ionic liquids (1)
- ionische Flüssigkeiten (1)
- keratinocytes (1)
- konjugierte kleine Moleküle (1)
- kontinentale Philosophie (1)
- kooperativer Transport (1)
- kulturell-kognitive Institution (1)
- lake sediments (1)
- land reform (1)
- land use (1)
- landmarks (1)
- langfristige Effekte (1)
- language acquisition (1)
- lanthanide complexes (1)
- learning organization (1)
- levels-of-inattention hypothesis (1)
- life history (1)
- ligand design (1)
- liquid-crystalline elastomers (1)
- local governance (1)
- long-term effects (1)
- low-lying eignvalues (1)
- magnetism (1)
- magnetization dynamics (1)
- magnetotelluric (1)
- mesoporous (1)
- mesoporös (1)
- metabolic networks (1)
- metal nitride carbon composites (1)
- metastability (1)
- miRNA (1)
- miRNAs (1)
- microRNA399 (1)
- microeconometrics (1)
- microporous polymers (1)
- microtubules (1)
- mikroRNA399 (1)
- mikroporöse Polymere (1)
- mind wandering (1)
- mindless reading (1)
- misfolding (1)
- modified dispersion relations (1)
- modified gravitational dynamics (1)
- molecular motors (1)
- molecular switches (1)
- molekulare Motoren (1)
- molekulare Schalter (1)
- multi-stimuli sensitiv materials (1)
- multi-stimuli sensitive Materialien (1)
- music instruments (1)
- mycotoxins (1)
- myth (1)
- nachhaltige Entwicklung (1)
- nachhaltige Landnutzung (1)
- nanorods (1)
- nanostructure (1)
- nanostructured materials (1)
- nanostrukturierte Materialien (1)
- nanotechnology (1)
- navigation (1)
- networks-on-chip (1)
- neuer Institutionalismus (1)
- next generation sequencing (1)
- nicht klassische Zustände (1)
- nichtlineare partielle Differentialgleichung (1)
- non-classicality (1)
- nonlinear partial differential equations (1)
- nucleation and growth (1)
- null model (1)
- numerical relativity (1)
- ob/ob (1)
- organic semiconductors (1)
- organische Halbleiter (1)
- organizational theory (1)
- paleofloods (1)
- palladium (1)
- pedestrian navigation (1)
- performance (1)
- performance information (1)
- performance management (1)
- periglacial landscapes (1)
- periglaziale Landschaften (1)
- phage HK620 (1)
- phage infection (1)
- philosophy of language (1)
- phonons (1)
- phonotactics (1)
- phosphate (1)
- piezoelectric sensors (1)
- piezoelektrische Sensoren (1)
- placement (1)
- polarimetric decompositions (1)
- polarimetrische Dekompositionen (1)
- political parties (1)
- political sociology (1)
- politische Soziologie (1)
- polyQ (1)
- polyelectrolytes (1)
- polyesters (1)
- polysaccharides (1)
- porous materials (1)
- post-Newton (1)
- power struggles (1)
- prostate cancer (1)
- public sector (1)
- pump-probe spectroscopy (1)
- quantization of field theories (1)
- quantum computer (1)
- quantum fluctuations (1)
- quantum many-body theory (1)
- quantum optics (1)
- quasiparticle interactions (1)
- radiation biology (1)
- randomization (1)
- reciprocal class (1)
- reconfiguration (1)
- refined spacetime geometries (1)
- regularization (1)
- regulative Institution (1)
- regulatory pathway (1)
- relativism (1)
- renewable resources (1)
- reproduction (1)
- rescaled lattice (1)
- research data centre (1)
- resistance mechanisms (1)
- reziproke Klassen (1)
- räumliche Analyse (1)
- salmonella (1)
- scheduling (1)
- schlechte Regierungsführung (1)
- selection (1)
- self-assembly (1)
- self-assessment and third-party assessment (1)
- self-healing coatings (1)
- self-regulation (1)
- semiclassical spectral asymptotics (1)
- serotonin (1)
- shape-memory polymers (1)
- significance (1)
- silica nanoparticles (1)
- soil moisture (1)
- solid phase extraction (1)
- solid state physics (1)
- solid-state-electrolyte (1)
- solvent extraction (1)
- sozialistische Orientierung der Marktwirtschaft (1)
- spatial analyses (1)
- specific language impairment (1)
- spectroscopic ruler (1)
- spektroskopisches Lineal (1)
- spin resolved photoelectron spectroscopy (1)
- spin-orbit coupling (1)
- spinaufgelöste Photoelektronenspektroskopie (1)
- sport (1)
- squeezing entanglement (1)
- star polymers (1)
- state-owned companies (1)
- statistics of the state-owned companies (1)
- stochastic mechanics (1)
- stochastische Mechanik (1)
- strengths-based intervention (1)
- structural thermodynamics (1)
- stärkenbasierte Intervention (1)
- subyllable (1)
- sulfite oxidase (1)
- sulfur ligands (1)
- supercapacitors (1)
- surface charge (1)
- surface chemistry (1)
- surface plasmons (1)
- surface states (1)
- surfaces (1)
- sustainable development (1)
- sustainable land use (1)
- symbiose-relevante mikroRNA-Targets (1)
- symbiosis-relevant microRNA targets (1)
- synthesis (1)
- system theory (1)
- tailspike (1)
- tailspike protein (1)
- taste (1)
- teacher training (1)
- teachers health (1)
- terrain models (1)
- thermalization (1)
- thermisch schaltbar (1)
- thermoresponsive (1)
- time reversal symmetry (1)
- topological insulators (1)
- topologische Isolatoren (1)
- training evaluation (1)
- transcription factor (1)
- transcriptomics (1)
- ultrafast dynamics (1)
- ultrafast x-ray diffraction (1)
- ultraschnelle Röntgenbeugung (1)
- unendlich teilbare Punktprozesse (1)
- unendliche Teilbarkeit (1)
- unique entities (1)
- urban development (1)
- varves (1)
- verb inflection (1)
- vibronics (1)
- virtual 3D city models (1)
- virtuelle 3D-Stadtmodelle (1)
- voice processing (1)
- wave scattering (1)
- wheat (1)
- winkelaufgelöste Photoelektronenspektroskopie (1)
- x-ray spectroscopy (1)
- xanthine dehydrogenase (1)
- youth (1)
- zelluläre Signalübertragung (1)
- Öffentliche Unternehmen (1)
- ökohydrologische Modellierung (1)
- Čechov (1)
- “Can do”-checklists (1)
- „Ich-kann“-Checklisten (1)
Institute
- Institut für Biochemie und Biologie (63)
- Institut für Chemie (44)
- Institut für Physik und Astronomie (35)
- Wirtschaftswissenschaften (24)
- Institut für Geowissenschaften (19)
- Institut für Informatik und Computational Science (17)
- Institut für Romanistik (12)
- Philosophische Fakultät (9)
- Extern (8)
- Sozialwissenschaften (7)
In the course of this thesis gold nanoparticle/polyelectrolyte multilayer structures were prepared, characterized, and investigated according to their static and ultrafast optical properties. Using the dip-coating or spin-coating layer-by-layer deposition method, gold-nanoparticle layers were embedded in a polyelectrolyte environment with high structural perfection. Typical structures exhibit four repetition units, each consisting of one gold-particle layer and ten double layers of polyelectrolyte (cationic+anionic polyelectrolyte). The structures were characterized by X-ray reflectivity measurements, which reveal Bragg peaks up to the seventh order, evidencing the high stratication of the particle layers. In the same measurements pronounced Kiessig fringes were observed, which indicate a low global roughness of the samples. Atomic force microscopy (AFM) images veried this low roughness, which results from the high smoothing capabilities of polyelectrolyte layers. This smoothing effect facilitates the fabrication of stratified nanoparticle/polyelectrolyte multilayer structures, which were nicely illustrated in a transmission electron microscopy image. The samples' optical properties were investigated by static spectroscopic measurements in the visible and UV range. The measurements revealed a frequency shift of the reflectance and of the plasmon absorption band, depending on the thickness of the polyelectrolyte layers that cover a nanoparticle layer. When the covering layer becomes thicker than the particle interaction range, the absorption spectrum becomes independent of the polymer thickness. However, the reflectance spectrum continues shifting to lower frequencies (even for large thicknesses). The range of plasmon interaction was determined to be in the order of the particle diameter for 10 nm, 20 nm, and 150 nm particles. The transient broadband complex dielectric function of a multilayer structure was determined experimentally by ultrafast pump-probe spectroscopy. This was achieved by simultaneous measurements of the changes in the reflectance and transmittance of the excited sample over a broad spectral range. The changes in the real and imaginary parts of the dielectric function were directly deduced from the measured data by using a recursive formalism based on the Fresnel equations. This method can be applied to a broad range of nanoparticle systems where experimental data on the transient dielectric response are rare. This complete experimental approach serves as a test ground for modeling the dielectric function of a nanoparticle compound structure upon laser excitation.
Structural dynamics of photoexcited nanolayered perovskites studied by ultrafast x-ray diffraction
(2012)
This publication-based thesis represents a contribution to the active research field of ultrafast structural dynamics in laser-excited nanostructures. The investigation of such dynamics is mandatory for the understanding of the various physical processes on microscopic scales in complex materials which have great potentials for advances in many technological applications. I theoretically and experimentally examine the coherent, incoherent and anharmonic lattice dynamics of epitaxial metal-insulator heterostructures on timescales ranging from femtoseconds up to nanoseconds. To infer information on the transient dynamics in the photoexcited crystal lattices experimental techniques using ultrashort optical and x-ray pulses are employed. The experimental setups include table-top sources as well as large-scale facilities such as synchrotron sources. At the core of my work lies the development of a linear-chain model to simulate and analyze the photoexcited atomic-scale dynamics. The calculated strain fields are then used to simulate the optical and x-ray response of the considered thin films and multilayers in order to relate the experimental signatures to particular structural processes. This way one obtains insight into the rich lattice dynamics exhibiting coherent transport of vibrational energy from local excitations via delocalized phonon modes of the samples. The complex deformations in tailored multilayers are identified to give rise to highly nonlinear x-ray diffraction responses due to transient interference effects. The understanding of such effects and the ability to precisely calculate those are exploited for the design of novel ultrafast x-ray optics. In particular, I present several Phonon Bragg Switch concepts to efficiently generate ultrashort x-ray pulses for time-resolved structural investigations. By extension of the numerical models to include incoherent phonon propagation and anharmonic lattice potentials I present a new view on the fundamental research topics of nanoscale thermal transport and anharmonic phonon-phonon interactions such as nonlinear sound propagation and phonon damping. The former issue is exemplified by the time-resolved heat conduction from thin SrRuO3 films into a SrTiO3 substrate which exhibits an unexpectedly slow heat conductivity. Furthermore, I discuss various experiments which can be well reproduced by the versatile numerical models and thus evidence strong lattice anharmonicities in the perovskite oxide SrTiO3. The thesis also presents several advances of experimental techniques such as time-resolved phonon spectroscopy with optical and x-ray photons as well as concepts for the implementation of x-ray diffraction setups at standard synchrotron beamlines with largely improved time-resolution for investigations of ultrafast structural processes. This work forms the basis for ongoing research topics in complex oxide materials including electronic correlations and phase transitions related to the elastic, magnetic and polarization degrees of freedom.