TY  - THES
A1  - Popov, K. V.
A1  - Liperovsky, Viktor A.
A1  - Meister, Claudia-Veronika
A1  - Liperovskaya, E. V.
T1  - Anthropogenic effects with weekly periodicity in the F-region ionosphere
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Fainerman, V. B.
A1  - Miller, Reinhard
A1  - Wüstneck, Rainer
A1  - Makievski, A. V.
T1  - Adsorption isotherm and surface tension equation for surfactant with changing partial molar area 1. Ideal surface layer
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Liperovsky, Viktor A.
A1  - Meister, Claudia-Veronika
A1  - Oleynik, M. A.
A1  - Popov, K. V.
A1  - Oleynik, M. A.
A1  - Liperovskaya, E. V.
T1  - Consequences of current generation in the ionosphere caused by neutral wind action on Es-clouds
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Lorenz, Bernd
A1  - Orgzall, Ingo
A1  - Dorhout, P. K.
A1  - Raymond, C. C.
A1  - Hochheimer, H. D.
T1  - Pressure induced phonon softening and structural phase transitions in Cs2MoS4
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Penacorada, Florencio
A1  - Reiche, Jürgen
A1  - Dietel, Reinhard
A1  - Zetzsche, Thomas
A1  - Stiller, Burkhard
A1  - Knobloch, Harald
A1  - Brehmer, Ludwig
T1  - Monolayers and multilayers of uranyl arachidate : 2. Influence of the subphase pH on the structure and stability of Langmuir-Blodgett films
N2  - In this second paper we describe the comprehensive structure investigations on multilayers of uranyl arachidate formed by Langmuir-Blodgett deposition from subphases of different pH on solid substrates by means of a combination of infrared spectroscopy, X-ray specular reflection, ellipsometry, and scanning force microscopy, The structure of these multilayers and their stability are obviously influenced by the subphase pH. The pH range of the acid to salt conversion determined for the Langmuir films is confirmed by the infrared spectroscopic data of the multilayers. While arachidic acid films, deposited from an uranyl acetate subphase of low pH, are found to have strongly distorted rough surface, the films of uranyl structure, The influence of the counterions on the alkyl chain conformation, chain packing, reorganization probability, and stability of the multilayer is discussed.
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Heuer, Axel
A1  - Menzel, Ralf
A1  - Ostermeyer, Martin
T1  - Power tunable Nd-oscillators with diffraction limited beams via SBS phase conjugation
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Hamann, Wolf-Rainer
A1  - Koesterke, Lars
T1  - Spectral analyses with the standard model : Part II: Wolf-Rayet Stars
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Ostermeyer, Martin
A1  - Heuer, Axel
A1  - Menzel, Ralf
T1  - Q-switching of Nd-lasers with high repetition rates by SBS phase conjugation
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Ostermeyer, Martin
A1  - Heuer, Axel
A1  - Watermann, V.
A1  - Menzel, Ralf
T1  - Resonators with phase conjugating SBS-mirror for solid state lasers with high output powers
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Ostermeyer, Martin
A1  - Heuer, Axel
A1  - Watermann, V.
A1  - Menzel, Ralf
T1  - Single rod Nd:laser with phase conjugating SBS-mirror and large transversal mode for average output powers above 20 Watts
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Gerhard, Reimund
T1  - Nonlinear optical polymer electrets
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Seehafer, Norbert
T1  - Nature of the alpha effect in magnetohydrodynamics
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Seehafer, Norbert
A1  - Zienicke, Egbert
A1  - Feudel, Fred
T1  - Absence of magnetohydrodynamic activity in the voltage-driven sheet pinch
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Seehafer, Norbert
A1  - Feudel, Fred
A1  - Schmidtmann, Olaf
T1  - Nonlinear dynamo with ABC forcing
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Gerhard, Reimund
A1  - Sessler, G. M.
T1  - A tribute to Professor Bernhard Gross
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Reiche, Jürgen
T1  - Antiphase domains in Langmuir-Blodgett films
N2  - For bilayer stacks of non-centrosymmetrical molecules, formed by the Langmuir-Blodgett (LB) technique (Y deposition), 00l peaks for the bilayer period are usually observed in the X-ray specular reflectivity curve, in this study, we show that the introduction of stacking disorder at lower transfer ratios and the subsequent partial repair of defects by a parallel shift of oppositely oriented molecules into the vacancies may result in the formation of antiphase domains and in an increase in the average monolayer symmetry followed by quenching of the bilayer peaks. The X-ray reflectivity data, obtained for multilayers of penta-alkynes, are used to demonstrate this real structural effect, which is expected to be of general importance for X-ray and neutron reflectivity data reduction and for the structural modelling of multilayers.
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Fruhner, Horst
A1  - Wantke, K.-D.
T1  - A new oscillating bubble technique for measuring surface dilational
Y1  - 1996
SN  - 0927-7757
ER  - 
TY  - THES
A1  - Witt, Annette
T1  - Komplexitätsmaße und ihre Anwendung
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Werner, Klaus
T1  - X-ray emission from hot hydrogen-deficient white dwarfs
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Werner, Klaus
T1  - Search for trace amounts of hydrogen in hot DO white dwarfs
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Werner, Klaus
T1  - On the Balmer line problem
Y1  - 1996
ER  - 
TY  - THES
A1  - Semig, Lutz V.
T1  - Erzeugung von Störungsspektren in inflationären Weltmodellen und der Vergleich mit Beobachtungen
Y1  - 1996
ER  - 
TY  - THES
A1  - Schmidtmann, Olaf
T1  - Nichlineare Galerkin-Verfahren für die 3D magnetohydrodynamischen Gleichungen
Y1  - 1996
ER  - 
TY  - THES
A1  - Raab, Volker
T1  - Geregeltes Schalten bistabiler Systeme
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
A1  - Kubyshkin, I. V.
T1  - Recalculation of the diffusion tensor for plasmas with ion-acoustic turbulence
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
T1  - Modelling of stochastic forces in turbulent space plasmas
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
T1  - Local current generation by the interaction of neutral winds and dense plasma clouds
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
A1  - Liperovsky, Viktor A.
A1  - Popov, K. V.
T1  - Ionospheric currents and turbulence caused by the influence of neutral winds on sporadic E-layers
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
A1  - Liperovsky, Viktor A.
T1  - Ionospheric currents and turbulence caused by the influence of neutral winds on sporadic E-layers. Model of local currrents caused by neutral winds in weakly-ionized plasmas
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
A1  - Kubyshkin, I. V.
T1  - Diffusion tensor for a solar flare plasma with ion-acoustic turbulence
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
T1  - Current fluctuations in the earth's magnetosphere caused by lower-hybrid-drift turbulence
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Meister, Claudia-Veronika
A1  - Kubyshkin, I. V.
T1  - Anomalous diffusion in solar flares with ion-acoustic turbulence
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Mathys, Gautier
A1  - Kharchenko, N.
A1  - Hubrig, Swetlana
T1  - A kinematical study of rapidly oscillating Ap stars
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Liperovsky, Viktor A.
A1  - Meister, Claudia-Veronika
T1  - Sporadic E-layers as current generator
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Liperovsky, Viktor A.
A1  - Kustov, A. V.
A1  - Meister, Claudia-Veronika
T1  - Some ideas concerning the problem of anomalous polar E-region heating due to Farley-Buneman turbulence
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Liperovsky, Viktor A.
A1  - Meister, Claudia-Veronika
A1  - Senchenkov, S. A.
T1  - On an acoustic model of the generation of local Farley-Buneman turbulence in the mid-latitude ionosphere
Y1  - 1996
ER  - 
TY  - THES
A1  - Küker, Manfred
T1  - Theorie der differentiellen Rotation der Sonne und ihrer magnetfeldbedingten Torsionsschwingungen
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kubyshkin, I. V.
A1  - Meister, Claudia-Veronika
T1  - An attempt to introduce finite diffusion regions into magnetohydrodynamic reconnection models
Y1  - 1996
ER  - 
TY  - THES
A1  - Kraus, Martin
T1  - Adhäsion und Dynamik von Vesikeln in äußeren Feldern
Y1  - 1996
ER  - 
TY  - THES
A1  - Hertzsch, Jan-Martin
T1  - Über nichtelastische Kollisionen und ihren Einfluß auf die Strukturbildung in planetaren Ringen
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Hamann, Wolf-Rainer
A1  - Heber, Ulrich
A1  - Jeffrey, C. S.
T1  - Wolf-Rayet stars of high and low mass
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Hamann, Wolf-Rainer
A1  - Jeffrey, C. S.
A1  - Leuenhagen, U.
T1  - Spectral analyses of late type central stars of planetary nebulae
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Hamann, Wolf-Rainer
T1  - Spectral analysis and model atmospheres of WR type central stars
Y1  - 1996
ER  - 
TY  - THES
A1  - Feudel, Ulrike
T1  - Dynamics in between regularity and chaos
Y1  - 1996
ER  - 
TY  - THES
A1  - Bundschuh, Ralf
T1  - Kritisches Verhalten von Fäden und halbsteifen Polymeren
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Baier, Frank W.
A1  - Lima-Neto, G. B.
A1  - Wipper, H.
T1  - Comparison between optical and X-ray structures of galaxy clusters
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Wüstneck, Rainer
A1  - Wasow, G.
T1  - Relation between the interaction parameter of a generalised Frumkin-Damaskin isotherm and some properties of solutions of surfactant mixtures
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Stahn, Jochen
A1  - Möhle, Marcus
A1  - Pietsch, Ullrich
T1  - Accurate structure determination for GaAs using Pendellösung oscillation
Y1  - 1996
ER  - 
TY  - THES
A1  - Shiming, Geng
T1  - Chemische Umwandlung und Vereinheitlichung plasmaerzeugter Gruppen an Polymeroberflächen und deren Nachweis
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Schulz, Burkhard
T1  - Herstellung und Charakterisierung geordneter ultradünner Poly(arylen- 1,3,4-oxadiazol) Schichten
Y1  - 1996
ER  - 
TY  - THES
A1  - Rose, Dirk
T1  - Untersuchung von InxGA1-xAS / GaAs- Schichtsystemen mit Röntgenbeugung unter streifendem Einfall
Y1  - 1996
ER  - 
TY  - THES
A1  - Reiche, Jürgen
T1  - Beiträge zur Strukturaufklärung organischer Mono- und Multischichten
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Pietsch, Ullrich
A1  - Hansen, N. K.
T1  - A critical review of the valence charge density in GaAs
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Okatova, Olga V.
A1  - Andreeva, Katharina A.
A1  - Schulz, Burkhard
T1  - Thermal hydrolytic degradation of polyoxadiazole derivatives
Y1  - 1996
ER  - 
TY  - THES
A1  - Mahler, Willy
T1  - Thermisch induzierte Strukturumwandlungen von Langmuir-Blodgett-Multischichten aus Fettsäuresalzen
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Liemant, Alfred
A1  - Brehmer, Ludwig
T1  - A mean field approximation for hopping transport in disordered materials
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Lichanot, Albert
A1  - Azavant, P.
A1  - Pietsch, Ullrich
T1  - Ab-initio Hartree-Fock study of the electronic charge density of the cubic boron nitride and its comparison with the experiment
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Janietz, Silvia
A1  - Schulz, Burkhard
T1  - Electrochemical investigation on poly(arylene-1,3,4-oxadiazole)s
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Janietz, Dietmar
T1  - Covalently linked donor-acceptor mesogens based on disc-shaped penta-alkynes
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Hamciuc, Corneliu
A1  - Schulz, Burkhard
A1  - Bruma, Maria
T1  - New polyhydrazides and polyoxadiazoles containing pendent phenoxy groups
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Fruhner, Horst
A1  - Czichocki, G.
T1  - Zur Bestimmung der kritischen Mizellkonzentration (CMC)
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Fruhner, Horst
A1  - Wantke, K.-D.
T1  - A new instrument for measuring the viscoelastic properties of dilute polymer solutions
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Fruhner, Horst
A1  - Lunkenheimer, K.
A1  - Miller, Reinhard
T1  - Adsorption kinetics and exchange of matter at liquid interfaces and microgravity
Y1  - 1996
ER  - 
TY  - THES
A1  - Fischer, Gerhard Gottlob
T1  - Röntgendiffraktometrische Untersuchungen zur thermischen Stabilität i1-xGex/Si- und Si1-yCy/Si- Heterostrukturen
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Brehmer, Ludwig
T1  - Ellipsometrie an photochromen ultradünnen Polymerschichten
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Bauer-Gogonea, Simona
A1  - Gerhard, Reimund
T1  - Nonlinear optical polymer electrets : current practice
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Bauer, Siegfried
A1  - Lang, Sidney B.
T1  - Pyroelectric polymer electrets
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Bauer, Siegfried
T1  - Poled polymers for sensors and photonic applications
Y1  - 1996
ER  - 
TY  - THES
A1  - Bauer, Siegfried
T1  - Gepolte Polymere für Anwendungen in der Sensorik und Photonik
Y1  - 1996
ER  - 
TY  - THES
A1  - Barberka, Thomas Andreas
T1  - Untersuchungen zur 3D-Struktur von Multischichten aus Molekülen der Fettsäuresalze mit Hilfe der Röntgenbeugung unter streifendem Einfall
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Winter, Rolf
T1  - Analog oder digital, das ist die Frage : auch im Physikunterricht?
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Sander, Rolf
A1  - Herrmann, V.
A1  - Menzel, Ralf
T1  - Transient absorption spectra and bleaching of 4'-n-Pentyl-4-Cyanoterphenyl in Cyclohexane : determination of cross sections and recovery times
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Müller, Wieland
T1  - Die solare Strahlung : durch Physik und Medizin neue Einsichten in unsere Umwelt gewinnen
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Mikelskis, Helmut
T1  - Die Polarität von Umweltbildung im Physikunterricht
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Eichler, Hans Joachim
A1  - Haase, Alfred
A1  - Menzel, Ralf
T1  - High beam quality of a single rod neodym amplifier by SBS-phase conjugation up to 140 watt average output
Y1  - 1996
ER  - 
TY  - BOOK
ED  - Neißendorfer, Frank
T1  - BESSY Jahresberichte (1990) - (1995)
Y1  - 1996
PB  - BESSY
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Feudel, Fred
A1  - Seehafer, Norbert
A1  - Schmidtmann, Olaf
T1  - Bifurcation phenomena of the magnetofluid equations
N2  - We report on bifurcation studies for the incompressible magnetohydrodynamic equations in three space dimensions with periodic boundary conditions and a temporally constant external forcing. Fourier representations of velocity, pressure and magnetic field have been used to transform the original partial differential equations into systems of ordinary differential equations (ODE), to which then special numerical methods for the qualitative analysis of systems of ODE have been applied, supplemented by the simulative calculation of solutions for selected initial conditions. In a part of the calculations, in order to reduce the number of modes to be retained, the concept of approximate inertial manifolds has been applied. For varying (increasing from zero) strength of the imposed forcing, or varying Reynolds number, respectively, time-asymptotic states, notably stable stationary solutions, have been traced. A primary non- magnetic steady state loses, in a Hopf bifurcation, stability to a periodic state with a non-vanishing magnetic field, showing the appearance of a generic dynamo effect. From now on the magnetic field is present for all values of the forcing. The Hopf bifurcation is followed by further, symmetry-breaking, bifurcations, leading finally to chaos. We pay particular attention to kinetic and magnetic helicities. The dynamo effect is observed only if the forcing is chosen such that a mean kinetic helicity is generated; otherwise the magnetic field diffuses away, and the time-asymptotic states are non-magnetic, in accordance with traditional kinematic dynamo theory.
Y1  - 1996
UR  - http://www.mathematicsweb.org/mathematicsweb/show/Index.htt?Issn=03784754
ER  - 
TY  - BOOK
A1  - Duit, Reinders
A1  - Mikelskis, Helmut
T1  - Physik, um die Welt zu begreifen : ein Lehrbuch für die Jahrgangsstufe 9/10 ; [Hauptbd.], Nordrhein- Westfalen
Y1  - 1996
SN  - 3-425-03673-4
PB  - Diesterweg [u.a.]
CY  - Frankfurt am Main [u.a.]
ER  - 
TY  - JOUR
A1  - Höpfner, Ulf
A1  - Frübing, Peter
A1  - Neumann, Werner
A1  - Kaminorz, Yvette
A1  - Brehmer, Ludwig
T1  - Polarization Processes of poly(DMDAAC) films studied by TSD current
Y1  - 1996
ER  - 
TY  - THES
A1  - Brügmann, Bernd
T1  - Quantum gravity in four dimensions : canonical quantization and dynamical triangulations
Y1  - 1996
ER  - 
TY  - THES
A1  - Braun, Michael
T1  - Sternentstehung in irregulären Galaxien : UGCA 86 und die Magellanschen Wolken
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Krampe, Ralf-Thomas
A1  - Schwarz, Udo
A1  - Witt, Annette
T1  - Measures of complexity in signal analysis
Y1  - 1996
UR  - http://agnld.uni-potsdam.de/~shw/Paper/m.ps.gz
ER  - 
TY  - JOUR
A1  - Osipov, Grigory V.
A1  - Rosenblum, Michael
A1  - Pikovskij, Arkadij
A1  - Zaks, Michael A.
A1  - Kurths, Jürgen
T1  - Attractor-repeller collision and eyelet intermittency at the transition to phase synchronization
N2  - The chaotically driven circle map is considered as the simplest model ofphase synchronization of a chaotic continuous-time oscillator by external periodic force. The phase dynamics is analyzed via phase-locking regions of the periodic cycles embedded in the strange attractor. It is shown that full synchronization, where all the periodic cycles are phase locked, disappears via the attractor-repeller collision. Beyond the transition an intermittent regime with exponentially rare phase slips, resulting from the trajectory's hits on an eyelet, is observed.
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Gowin, W.
A1  - Kurths, Jürgen
A1  - Saparin, Peter
A1  - Felsenberg, D.
T1  - Measures of complexity and processing of vertebral CT-images
Y1  - 1997
SN  - 0-7803-4262-3
ER  - 
TY  - JOUR
A1  - Scholl, H.
A1  - Spahn, Frank
A1  - Hertzsch, Jan-Martin
A1  - Katzorke, Ines
T1  - Simulation of collisions in planetary rings
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Pikovskij, Arkadij
A1  - Rosenblum, Michael
A1  - Osipov, Grigory V.
A1  - Kurths, Jürgen
T1  - Phase synchronization effects in a lattice of nonidentical Rössler oscillators
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Rosenblum, Michael
A1  - Osipov, Grigory V.
A1  - Pikovskij, Arkadij
A1  - Kurths, Jürgen
T1  - Phase synchronization of chaotic oscillators by external driving
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Feudel, Ulrike
A1  - Jansen, Wolfgang
A1  - Kurths, Jürgen
A1  - Schwarz, Udo
A1  - Voss, Henning U.
T1  - Solar variability : simple models and proxy data
Y1  - 1997
SN  - 4-274-90187-4
ER  - 
TY  - JOUR
A1  - Yilmaz, Sükrü
A1  - Wirges, Werner
A1  - Bauer-Gogonea, Simona
A1  - Bauer, Siegfried
A1  - Gerhard, Reimund
A1  - Michelotti, F.
A1  - Toussaere, E.
A1  - Levenson, R.
A1  - Liang, J.
A1  - Zyss, Joseph
T1  - Dielectric, pyroelectric and electro-optic monitoring of the cross-linking process and photo-induced poling of Red Acid Magly
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Zaikin, Alexei A.
A1  - Rosenblum, Michael
A1  - Scheffczyk, Christian
A1  - Engbert, Ralf
A1  - Krampe, Ralf-Thomas
A1  - Kurths, Jürgen
T1  - Modeling qualitative changes in bimanual movements
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Schiek, Michael
A1  - Scheffczyk, Christian
A1  - Engbert, Ralf
A1  - Kurths, Jürgen
A1  - Krampe, Ralf-Thomas
A1  - Kliegl, Reinhold
A1  - Drepper, Friedhelm R.
T1  - Symbolic dynamics of physiological synchronisation : examples from bimanual movements and cardiorespiratory interaction
N2  - Key words: Nonlinear time series analysis, symbolic dynamics, phase transitions, physiological data, biological synchronization, production of polyrhythms, cardiorespiratory interaction, variation of control parameter
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Scheffczyk, Christian
A1  - Krampe, Ralf-Thomas
A1  - Engbert, Ralf
A1  - Rosenblum, Michael
A1  - Kurths, Jürgen
A1  - Kliegl, Reinhold
T1  - Tempo-induced transitions in polyrhythmic hand movements
N2  - We investigate the cognitive control in polyrhythmic hand movements as a model paradigm for bimanual coordination. Using a symbolic coding of the recorded time series, we demonstrate the existence of qualitative transitions induced by experimental manipulation of the tempo. A nonlinear model with delayed feedback control is proposed, which accounts for these dynamical transitions in terms of bifurcations resulting from variation of the external control parameter. Furthermore, it is shown that transitions can also be observed due to fluctuations in the timing control level. We conclude that the complexity of coordinated bimanual movements results from interactions between nonlinear control mechanisms with delayed feedback and stochastic timing components.
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Papra, Alex
A1  - Penacorada, Florencio
A1  - Reiche, Jürgen
A1  - Katholy, Stefan
A1  - Brehmer, Ludwig
A1  - Hicke, Hans-Georg
T1  - Structure and Stability of Langmuir Monolayers and Langmuir-Blodgett Films of Bisaroyl Azide Bolaamphiphiles
N2  - Langmuir-Blodgett films of bolaamphiphiles with reactive head groups can be used for the surface modification of composite membranes for gas separation processes. The scope of our investigations was to get a detailed insight in the monolayer behaviour and LB film structure of previously synthesized bisaroyl azide bolaamphiphiles. The layers have been analyses by means of surface potential measurements and Brewster angle microscopy. Furthermore parameters for a successful LB Film deposition were found. As expected for a molecule with two hydrophilic ends the transfer ratio on upstroke was close to one and on downstroke no transfer occurred. The multilayer structure was analysed by scanning force microscopy and X-ray reflectivity measurements. The SFM images revealed a periodic in plane structure on molecular level. Based on a combination of the X-ray data with results of other methods two possible models of the multilayer structure are presented
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Wessel, Niels
A1  - Kleiner, H. J.
A1  - Voss, Andreas
A1  - Kurths, Jürgen
A1  - Dietz, R.
T1  - Nonlinear dynamics in cardiovasscular diseases
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Zaks, Michael A.
A1  - Rosenblum, Michael
A1  - Pikovskij, Arkadij
A1  - Osipov, Grigory V.
A1  - Kurths, Jürgen
T1  - Phase synchronization of chaotic oscillations in terms of periodic orbits
Y1  - 1997
SN  - 1054-1500
ER  - 
TY  - JOUR
A1  - Zaikin, Alexei A.
A1  - Rosenblum, Michael
A1  - Landa, Polina S.
A1  - Kurths, Jürgen
T1  - Control of noise-induced oscillations of a pendulum with a rondomly vibrating suspension axis
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kuznetsov, Sergey P.
A1  - Pikovskij, Arkadij
A1  - Bezrucko, B. P.
A1  - Seleznev, E. P.
A1  - Feudel, Ulrike
T1  - O dinamike nelinejnych sistem po vne¬nim kvaziperiodi§eskim vozdejstviem vblizi to§ki okon§anija linii bifurkatcii udvoenija tora
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Hunt, Brain R.
A1  - Grebogi, Celso
A1  - Barreto, Ernest
A1  - Yorke, James A.
T1  - From high dimensional chaos to stable periodic orbits : the structure of parameter space
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Saparin, Peter
A1  - Kurths, Jürgen
A1  - Gowin, P.
A1  - Felsenberg, D.
T1  - Die quantitative Beurteilung trabeculärer Knochenstrukturen der Lendenwirbelkörper durch Meßmethoden der nicht-linearen Dynamik
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Reiche, Jürgen
A1  - Knochenhauer, Gerald
A1  - Dietel, Reinhard
A1  - Freydank, Anke-Christine
A1  - Zetzsche, Thomas
A1  - Pietsch, Ullrich
A1  - Brehmer, Ludwig
A1  - Barberka, Thomas Andreas
A1  - Geue, Thomas
T1  - Structure of thermally treated oxadiazoleamide Langmuir-Blodgett films
N2  - The thermal treatment of Y-type Langmuir-Blodgett (LB) films formed from the amphiphilic derivative of 2,5- diphenyl-1,3,4-oxadiazole 1 results in changes of the molecular packing. These changes have been analysed by a combination of X-ray specular reflectivity data, X-ray grazing incidence diffraction data and scanning force microscopy images, On the basis of these experimental data we have simulated possible supramolecular structures, These simulations provide insight into the intermolecular interactions giving rise to the observed structural transitions. The crystalline structure induced by thermal treatment of the LB films is characterized by a uniaxial texture, which is correlated with the dipping direction during deposition of the LB film.
Y1  - 1997
ER  -