@article{OrgzallLorenz1994, author = {Orgzall, Ingo and Lorenz, Bernd}, title = {Kinetics of photoinduced phase transitions in sulfur below 10 Gpa}, year = {1994}, language = {en} } @article{OrgzallLorenzHinze1994, author = {Orgzall, Ingo and Lorenz, H. and Hinze, E.}, title = {Observation of cBN formation in the system Mg3N2-BN}, year = {1994}, language = {en} } @article{OrgzallLorenz1994, author = {Orgzall, Ingo and Lorenz, Bernd}, title = {Structure and fractal properties in geological crystallization processes due to nucleation and growth}, year = {1994}, language = {en} } @article{SchulzJanietz1994, author = {Schulz, Burkhard and Janietz, Silvia}, title = {Electrochemical studies on thin films of poly(arylene 1,3,4-oxadiazole)s}, year = {1994}, language = {en} } @article{Schulz1994, author = {Schulz, Burkhard}, title = {Eine neue Synthesevariante f{\"u}r aromatische Poly(1,3,4-oxadiazole)}, year = {1994}, language = {de} } @article{Schulz1994, author = {Schulz, Burkhard}, title = {Neue thermostabile Polyheterocyclen}, year = {1994}, language = {de} } @article{Schulz1994, author = {Schulz, Burkhard}, title = {New aspects of the solid-state structures and electrochemical properties of aromatic Poly(1,3,4- Oxadiazole)s}, year = {1994}, language = {en} } @article{Schulz1994, author = {Schulz, Burkhard}, title = {Struktur und Eigenschaften d{\"u}nner Schichten aus aromatischen Poly(1,3,4- oxadiazol)en}, year = {1994}, language = {de} } @article{SeebothWuestneckKraegel1994, author = {Seeboth, A. and W{\"u}stneck, Rainer and Kr{\"a}gel, J{\"u}rgen}, title = {Gel dispersed liquid crystals}, year = {1994}, language = {en} } @article{WuestneckEndersFiedler1994, author = {W{\"u}stneck, Rainer and Enders, P. and Fiedler, H.}, title = {Determination of aggregation numbers and ionisation degree of micelles using surface tension isotherms of maleic acid mono[(4-alkyl-piperazine-2-yl)ethyl esters]}, year = {1994}, language = {en} } @phdthesis{Aurass1994, author = {Auraß, Henry}, title = {Radiobeobachtungen der Sonnenkorona - ein Zugang zur Flarephysik : einige experimentelle Beitr{\"a}ge zum Verst{\"a}ndnis der Dynamik des Flarerozesses}, pages = {49 S. [35], 77 Bl., Ill.}, year = {1994}, language = {de} } @article{Baier1994, author = {Baier, Frank W.}, title = {Dominant galaxies in bimodal cluster}, year = {1994}, language = {en} } @article{BaierWipper1994, author = {Baier, Frank W. and Wipper, H.}, title = {Luminosity distribution in cD clusters}, year = {1994}, language = {en} } @article{HubrigMathys1994, author = {Hubrig, Swetlana and Mathys, Gautier}, title = {The evolutionary state of magnetic Ap stars}, year = {1994}, language = {en} } @article{LiperovskyMeister1994, author = {Liperovsky, Viktor A. and Meister, Claudia-Veronika}, title = {Ionosph{\"a}rische sporadische E-Schichten mittlerer Breiten als Stromgenerator}, year = {1994}, language = {de} } @article{Meister1994, author = {Meister, Claudia-Veronika}, title = {Langevin equation for turbulent plasmas near regions of magnetic reconnection}, year = {1994}, language = {en} } @article{Meister1994, author = {Meister, Claudia-Veronika}, title = {Stochastic forces in plasmas with magnetized particles}, year = {1994}, language = {en} } @article{Meister1994, author = {Meister, Claudia-Veronika}, title = {Stromfluktuationen in kosmischen Plasmen mit Dichtegradienten}, year = {1994}, language = {de} } @phdthesis{Schwarz1994, author = {Schwarz, Udo}, title = {Zeitreihenanalyse astrophysikalischer Aktivit{\"a}tsph{\"a}nomene}, pages = {IV, 149 S.}, year = {1994}, language = {de} } @phdthesis{Atmanspacher1994, author = {Atmanspacher, Harald}, title = {Informationsdynamik : Grundlagen, Interpretation, Konsequenzen}, pages = {289 S. : Ill.}, year = {1994}, language = {de} } @article{EichlerHaaseMenzel1994, author = {Eichler, Hans Joachim and Haase, Alfred and Menzel, Ralf}, title = {SBS-Phase Conjugation for Thermal Lens Compensation in 100 Watt Average Power Solid-State Lasers}, year = {1994}, language = {en} } @article{AngelovaReicheIonovetal.1994, author = {Angelova, Angelina and Reiche, J{\"u}rgen and Ionov, Radoslav and Janietz, Dietmar and Lemmetyinen, Helge and Brehmer, Ludwig}, title = {Control of the structure of Langmuir-Blodgett films of a discotic liquid crystalline compound via the subphase composition and the adjacent molecular environment}, year = {1994}, abstract = {Changes of the molecular arrangenemt that can be induced by means of the LB technique in the multilayers of a disc-shaped multialkynyl amphiphile are monitored by means of small angle X-ray diffraction. Studies of the monolayers at the air-water interface reveal "edge-on" orientation of the discs. Specific effects of the counter- ions (Na+, Cd²+, Pb²+, and Ba²+) and sub-solution pH on the monolayer collapse pressure, transfer efficiency and molecular order in the multilayers are found. A correlation between the monolayer properties and the ability for formation of periodic discotic structures in the presence of divalent counterions is established. The discotic molecules retain their "edge-on" arrangement in the highly compressed transferred films with slight irregular interdigtation of the flexible wings and inclination to the substrate normal. The tilt and the inter- digitation are reduced when the discotic monolayers are deposited in alternating LB films with barium arachidate spacer layers.}, language = {en} } @phdthesis{Spahn1994, author = {Spahn, Frank}, title = {Einfluß von Satelliten auf die Dynamik planetarer Ringe}, year = {1994}, language = {de} } @article{Mikelskis1994, author = {Mikelskis, Helmut}, title = {Inszenierung von Gelegenheiten des Naturverstehens : Konzeptionelle Betrachtungen zu einer empirischen Studie {\"u}ber ganzheitliches Lernen im Physikunterricht}, year = {1994}, language = {de} } @book{DuitMikelskis1994, author = {Duit, Reinders and Mikelskis, Helmut}, title = {Physik, um die Welt zu begreifen : ein Lehrbuch f{\"u}r die Jahrgangsstufe 7/8 ; [Hauptbd.], Niedersachsen}, publisher = {Diesterweg; Konkordia-Verl.}, address = {Frankfurt am Main; B{\"u}hl}, isbn = {3-425-03676-9}, pages = {176 S.}, year = {1994}, language = {de} } @unpublished{PikovskijFeudel1994, author = {Pikovskij, Arkadij and Feudel, Ulrike}, title = {Characterizing strange nonchaotic attractors}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13405}, year = {1994}, abstract = {Strange nonchaotic attractors typically appear in quasiperiodically driven nonlinear systems. Two methods of their characterization are proposed. The first one is based on the bifurcation analysis of the systems, resulting from periodic approximations of the quasiperiodic forcing. Secondly, we propose th characterize their strangeness by calculating a phase sensitivity exponent, that measures the sensitivity with respect to changes of the phase of the external force. It is shown, that phase sensitivity appears if there is a non-zero probability for positive local Lyapunov exponents to occur.}, language = {en} } @phdthesis{Pikovskij1994, author = {Pikovskij, Arkadij}, title = {Dynamics of perturbations in chaotic dynamical systems}, pages = {190 S.}, year = {1994}, language = {en} } @unpublished{KurthsPikovskijScheffczyk1994, author = {Kurths, J{\"u}rgen and Pikovskij, Arkadij and Scheffczyk, Christian}, title = {Roughening interfaces in deterministic dynamics}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-13447}, year = {1994}, abstract = {Two deterministic processes leading to roughening interfaces are considered. It is shown that the dynamics of linear perturbations of turbulent regimes in coupled map lattices is governed by a discrete version of the Kardar-Parisi-Zhang equation. The asymptotic scaling behavior of the perturbation field is investigated in the case of large lattices. Secondly, the dynamics of an order-disorder interface is modelled with a simple two-dimensional coupled map lattice, possesing a turbulent and a laminar state. It is demonstrated, that in some range of parameters the spreading of the turbulent state is accompanied by kinetic roughening of the interface.}, language = {en} } @article{Mikelskis1993, author = {Mikelskis, Helmut}, title = {Schneller als der Wind : zur Behandlung des Darrieus-Windrotors im Physikunterricht}, year = {1993}, language = {de} } @article{Mikelskis1993, author = {Mikelskis, Helmut}, title = {Zukunftsperspektiven physikdidaktischer Forschung im vereinigten Deutschland}, isbn = {3-88064-223-0}, year = {1993}, language = {de} } @book{DuitMikelskis1993, author = {Duit, Reinders and Mikelskis, Helmut}, title = {Physik, um die Welt zu begreifen : ein Lehrbuch f{\"u}r die Jahrgangsstufe 5/6 ; [Hauptbd.], Nordrhein- Westfalen}, publisher = {Diesterweg}, address = {Frankfurt am Main}, isbn = {3-425-03671-8}, pages = {120 S.}, year = {1993}, language = {de} } @book{DuitMikelskis1993, author = {Duit, Reinders and Mikelskis, Helmut}, title = {Physik - Chemie, um die Welt zu begreifen : ein Lehrbuch f{\"u}r die Orientierungsstufe ; [Hauptbd.], Niedersachsen}, volume = {3675}, publisher = {Diesterweg}, address = {Frankfurt am Main}, isbn = {3-425-03675-0}, pages = {80 S.}, year = {1993}, language = {de} } @article{Mikelskis1993, author = {Mikelskis, Helmut}, title = {Zur {\"O}kologisierung des Lernprozesses : Versuch {\"u}ber einen vernachl{\"a}ssigten Aspekt von Umweltbildung}, isbn = {3-89088-073-8}, year = {1993}, language = {de} } @book{MarquardtMauMayerMikelskis1993, author = {Marquardt-Mau, Brunhilde and Mayer, J{\"u}rgen and Mikelskis, Helmut}, title = {Umwelt : Lexikon {\"o}kologisches Grundwissen}, volume = {6337}, publisher = {Rowohlt}, address = {Reinbek bei Hamburg}, isbn = {3-499-16337-3}, pages = {509 S.}, year = {1993}, language = {de} } @book{HaenselNeumannHudel1993, author = {H{\"a}nsel, Horst and Neumann, Werner and Hudel, Erich}, title = {Physik : Bd. 2 Elektrizit{\"a}t, Optik, Raum und Zeit}, volume = {2}, publisher = {Spektrum Akad. Verl.}, address = {Heidelberg}, isbn = {3-86025-304-2}, pages = {799 S.}, year = {1993}, language = {de} } @phdthesis{Pedzisz1993, author = {Pedzisz, Bozena}, title = {Zur Rolle historischer Betrachtungen im Physikunterricht unter besonderer Ber{\"u}cksichtigung grundlegender Experimente}, pages = {3, 167,73 Bl. : Ill.}, year = {1993}, language = {de} } @book{HaenselNeumannWedell1993, author = {H{\"a}nsel, Horst and Neumann, Werner and Wedell, Reiner}, title = {Physik : Bd. 1 Mechanik und W{\"a}rmelehre}, volume = {1}, publisher = {Spektrum Akad. Verl.}, address = {Heidelberg}, isbn = {3-86025-046-9}, pages = {584 S.}, year = {1993}, language = {de} } @article{HubrigMathys1993, author = {Hubrig, Swetlana and Mathys, Gautier}, title = {Mass loss, magnetic field and chemical inhomogenities in the he-weak star HD 21699}, year = {1993}, language = {en} } @article{ReicheDietelLemmetyinenetal.1992, author = {Reiche, J{\"u}rgen and Dietel, Reinhard and Lemmetyinen, Helge and Janietz, Dietmar and Lemmetyinen, Helge and Brehmer, Ludwig}, title = {Edge-on Langmuir-Blodgett multilayers derived from disc-shaped multiyne mesogens}, year = {1992}, abstract = {Langmuir-Blodgett(LB) multilayers were prepared from disc-shaped multiyne mesogens based on amphiphilic alkyl pentakis(aryl-ethynyl)benzene ethers. The two compounds used are characterized by five hydrophobic flexible chains and one hydrophilic substituent at the terminal position of the alkoxy chain. The LB films were analysed by X-ray scattering and spectroscopic measurements. An edge-on arrangement of the two discotic pentaalkynes within Y-type bilayers with a different packing density proved to be possible for the LB films of both compounds.}, language = {en} } @phdthesis{Sprengel1992, author = {Sprengel, Jens-Uwe}, title = {Analyse der Transfermatrizen geschichteter anisotroper Medien}, pages = {92 Bl., 3 S.}, year = {1992}, language = {de} } @article{ReichePietschFinketal.1992, author = {Reiche, J{\"u}rgen and Pietsch, Ullrich and Fink, Hans-Peter and Lemmetyinen, Helge}, title = {A comparison fo x-ray methods for structure refinement of Langmuir-Blodgett multilayers}, year = {1992}, abstract = {The possibilities and limits of structure refinement of Langmuir-Blodgett films by means of symmetrical reflection of X- rays are described using the example of a stearic acid multilayer. Three different techniques for the determiantion of the electron density profile from reflectivity data are compared; a Fourier method, a Patterson method, and model calculations. The important role of the a priori information for finding the besft structure model is outlined.}, language = {en} } @article{Mikelskis1992, author = {Mikelskis, Helmut}, title = {Combining issues of "girl-suited" science teaching, STS and constructivism in a physics textbook}, issn = {0157-244X}, year = {1992}, language = {en} } @article{Mikelskis1992, author = {Mikelskis, Helmut}, title = {Physiklernen heißt: Br{\"u}cken schlagen zwischen toten Zahlen und sinnlichem Dasein}, isbn = {3-89088-061-4}, year = {1992}, language = {de} } @article{Mikelskis1992, author = {Mikelskis, Helmut}, title = {Wo bleibt das Ph{\"a}nomen im Experiment?}, isbn = {3-88064-212-5}, year = {1992}, language = {de} } @phdthesis{Wedel1992, author = {Wedel, Armin}, title = {Untersuchungen zum Dipolschaltverhalten an Polymerfestk{\"o}rpern}, pages = {73 Bl. : Ill., graph. Darst. + Thesen (1 Ex.)}, year = {1992}, language = {de} } @phdthesis{Gerhard1992, author = {Gerhard, Reimund}, title = {Pr{\"a}paration und Untersuchung von Festk{\"o}rperschichten f{\"u}r Sensorik und Photonik : eine Zusammenstellung von Ver{\"o}ffentlichungen}, pages = {Getr. Z{\"a}hlung : Ill., graph. Darst.}, year = {1992}, language = {de} } @article{NeumannKasperKasper1991, author = {Neumann, Werner and Kasper, Sabine and Kasper, Roberto}, title = {Discharge Currents in Polymer Solids between Blocking Contacts}, isbn = {0-7803-0113- 7}, year = {1991}, language = {en} } @article{Neumann1991, author = {Neumann, Werner}, title = {Stromtr{\"a}gerrelaxationen in hochohmigen Polymerfestk{\"o}rpern}, year = {1991}, language = {de} } @phdthesis{Regenstein1989, author = {Regenstein, Wolfgang}, title = {Fluoreszenzl{\"o}schung durch Elektronen- und Resonanzenergietransfer in L{\"o}sungen}, doi = {10.25932/publishup-49137}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-491377}, school = {Universit{\"a}t Potsdam}, pages = {86, 17}, year = {1989}, abstract = {Intermolekulare Desaktivierung zwischen einem angeregten Fluorophor und einem L{\"o}scher durch Elektronen{\"u}bertragung kann mit dynamischer und statischer L{\"o}schung beschrieben werden. Es wird vorgeschlagen den dynamischen L{\"o}schprozess in Transport- und Wechselwirkungsphase einzuteilen. Ergebnisse der L{\"o}schung der N-Heteroarene durch Naphthalen bei hohen L{\"o}scherkonzentrationen werden mit der statischen L{\"o}schung beschrieben. Außerdem werden CT-Systeme untersucht. Nach einem {\"U}berblick {\"u}ber statische Modelle zum Resonanzenergietransfer wird ein aus der Treffertheorie abgeleitetes Modell vorgestellt und an Beispielen getestet. Die Experimente sind computergesteuert.}, language = {de} } @phdthesis{Regenstein1972, author = {Regenstein, Wolfgang}, title = {Absorptionsspektroskopische Untersuchungen zum Einfluß des Mediums und des Aggregatzustandes auf die Gestalt und Lage der Charge-Transfer-Bande}, doi = {10.25932/publishup-49670}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-496702}, school = {Universit{\"a}t Potsdam}, pages = {56}, year = {1972}, abstract = {An einigen CT-Modellkomplexen in verschiedenen L{\"o}sungsmitteln und bei Temperaturen von 113-300 K sollte der Einfluß der Umgebung auf die Form und Lage der Absorption von CT-Komplexen unterschiedlicher Bindungsfestigkeit untersucht werden. Dazu wurden bekannte Bandenprofilfunktionen auf ihre Anwendbar-keit gepr{\"u}ft. Da eine optimale Anpassung nicht m{\"o}glich war, wurde eine neue Profilfunktion entwickelt, die eine bessere Beschreibung ergab. Nach der Bestimmung der Gleichgewichtskonstante und des Extink-tionskoeffizienten konnte mit der Profilfl{\"a}che das {\"U}bergangsmoment berechnet werden. Die L{\"o}sungsmittelabh{\"a}ngigkeit wurde bei verschiedenen Brechzahlen und Dielektrizit{\"a}tskonstanten untersucht. F{\"u}r feste Komplexe wurde eine spezielle Pr{\"a}parationstechnik gew{\"a}hlt. Die beobachteten Feinstrukturen und der auftretende Streuuntergrund werden diskutiert.}, language = {de} } @phdthesis{Karimi, author = {Karimi, Marzieh}, title = {Mechanical properties of vesicle membranes in asymmetric buffer conditions}, school = {Universit{\"a}t Potsdam}, pages = {96}, language = {en} } @article{FanStegmannSchrappeetal., author = {Fan, Xin and Stegmann, Mikkel B. and Schrappe, Oliver and Zeidler, Steffen and Jensen, Isac G. and Thorsen, Jannich and Bjerregaard, Tobias and Krstić, Miloš}, title = {Frequency-domain optimization of digital switching noise based on clock scheduling}, series = {IEEE Transactions on Circuits and Systems I}, volume = {63}, journal = {IEEE Transactions on Circuits and Systems I}, number = {7}, issn = {1549-8328}, doi = {10.1109/TCSI.2016.2546118}, pages = {982 -- 993}, abstract = {The simultaneous switching activity in digital circuits challenges the design of mixed-signal SoCs. Rather than focusing on time-domain noise voltage minimization, this work optimizes switching noise in the frequency domain. A two-tier solution based on the on-chip clock scheduling is proposed. First, to cope with the switching noise at the fundamental clock frequency, which usually dominates in terms of noise power, a two-phase clocking scheme is employed for system timing. Second, on-chip clock latencies are manipulated to target harmonic peaks in specific frequency bands for the spectral noise optimization. An automated design flow, which allows for noise optimization in user-defined application-specific frequency bands, is developed. The effectiveness of our design solution is validated by measurements of substrate noise and conductive EMI (electromagnetic interference) noise on a test chip, which consists of four wireless sensor node baseband processors each addressing a distinct clock-tree-synthesis strategy. Compared to the reference synchronous design, the proposed clock scheduling solution substantially reduces noise in the target GSM-850 band, i.e., by 11.1 dB on the substrate noise and 12.9 dB on the EMI noise, along with dramatic noise peak drops measured at the 50-MHz clock frequency.}, language = {en} }