Studying Complex Surface Dynamical Systems Using Helium-3 Spin-Echo Spectroscopy, Barbara A. J. Lechner

Автор: Barbara A. J. Lechner
Название: Studying Complex Surface Dynamical Systems Using Helium-3 Spin-Echo Spectroscopy
ISBN: 3319011790 ISBN-13(EAN): 9783319011790
Издательство: Springer
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Описание: This book provides a comprehensive introduction to many aspects of the helium-3 spin-echo (HeSE) technique, including instrumentation, measurement and data analysis. It is an ideal resource for newcomers to the field.

Автор: B. Ewen; M. Mours; D. Richter; T. Shiga; H.H. Wint
Название: Neutron Spin Echo Spectroscopy Viscoelasticity Rheology
ISBN: 366214803X ISBN-13(EAN): 9783662148037
Издательство: Springer
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Описание: Viscoelasticandtransportpropertiesofpolymersintheliquid(solution, melt)or liquid-like (rubber) state determine their processing and application to a large extent and are of basic physical interest 1--3]. An understanding of these dynamic properties at a molecular level, therefore, is of great importance. However, thisunderstandingiscomplicatedbythefactsthatdi?erentmotional processes may occur on di?erent length scales and that the dynamics are governed by universal chain properties as well as by the special chemical structure of the monomer units 4,5]. The earliest and simplest approach in this direction starts from Langevin equations with solutions comprising a spectrum of relaxation modes 1--4]. Special features are the incorporation of entropic forces (Rouse model, 6]) which relax uctuations of reduced entropy, and of hydrodynamic interactions (Zimm model, 7]) which couple segmental motions via long-range back ow elds in polymer solutions, and the inclusion of topological constraints or entanglements (reptation or tube model, 8--10]) which are mutually imposed within a dense ensemble of chains. Another approach, neglecting the details of the chemical structure and concentratingontheuniversalelementsofchainrelaxation, isbasedondynamic scalingconsiderations 4,11].Inparticularinpolymersolutions, thisapproach o?ers an elegant tool to specify the general trends of polymer dynamics, although it su?ers from the lack of a molecular interpretation. A real test of these theoretical approaches requires microscopic methods, which simultaneously give direct access to the space and time evolution of the segmental di?usion. Here, quasi-elastic scattering methods play a crucial role sincetheyallowthemeasurementofthecorrespondingcorrelationfunctions.In particular, thehigh-resolutionneutronspinecho(NSE)spectroscopy 12--15]is very suitable for such investigations since this method covers an appropriate range in time (0.005)t/ns)40) and space (r/nm 15). Furthermore, the possibilityoflabellingbyhydrogen-deuteriumexchangeallowstheobservation of single-chain behavior even in the melt.

Автор: B. Lindmann; G. Olofsson; P. Stenius
Название: Surfactants, Adsorption, Surface Spectroscopy and Disperse Systems
ISBN: 3662160846 ISBN-13(EAN): 9783662160848
Издательство: Springer
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Автор: Gros Claudius
Название: Complex and Adaptive Dynamical Systems
ISBN: 3319162640 ISBN-13(EAN): 9783319162645
Издательство: Springer
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Описание: The core aspects of modern complex system sciences are presented in the first chapters, covering network theory, dynamical systems, bifurcation and catastrophe theory, chaos and adaptive processes, together with the principle of self-organization in reaction-diffusion systems and social animals.

Автор: Kazuyuki Aihara; Jun-ichi Imura; Tetsushi Ueta
Название: Analysis and Control of Complex Dynamical Systems
ISBN: 4431550127 ISBN-13(EAN): 9784431550129
Издательство: Springer
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Описание: This book is the first to report on theoretical breakthroughs on control of complex dynamical systems developed by collaborative researchers in the two fields of dynamical systems theory and control theory.

Автор: Ferenc Mezei; Catherine Pappas; Thomas Gutberlet
Название: Neutron Spin Echo Spectroscopy
ISBN: 364207927X ISBN-13(EAN): 9783642079276
Издательство: Springer
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