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Tesis sobre el tema "Inelastic dynamics"

Autor: Grafiati
Publicado: 25 de enero de 2025
Última modificación: 31 de julio de 2025

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1

Gates, Gary Anthony. "Inelastic scattering in gas-surface dynamics." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358969.

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2

Marinakis, Sarantos. "The dynamics of inelastic and reactive bimolecular collisions." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424735.

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3

McCrudden, Garreth. "Vector correlations in gas-phase inelastic collision dynamics." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:967fbe54-98a9-48e9-a0b2-707811804d7a.

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This thesis presents a joint experimental and theoretical study of vector correlations in the electronically, vibrationally, and rotationally inelastic collisions of simple molecules with rare-gas atoms. In the first instance, empirical and calculated data are presented for rotationally inelastic scattering in the NO(X)+Ar and ND<sub>3</sub>(X̃)+Ar systems at collision energies in the range 405-2210 cm<sup>-1</sup>. These experiments - the first to be conducted on a newly commissioned crossed-molecular beam machine - measured the k-k' correlation, i.e. that between the vectors describing the r
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4

Rusher, Cassandra Amelia. "Inelastic scattering dynamics of ammonia with small molecules." Thesis, Heriot-Watt University, 2016. http://hdl.handle.net/10399/3275.

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Crossed molecular beam velocity map imaging (VMI) is employed to state-selectively record the NH3 inelastic scattering products from collisions with a series of colliders; atomic Ar, diatomic D2, and the polyatomics CH4, C2H6 and C(CH3)4. The differential cross sections (DCSs) presented for NH3-Ar expand on the existing literature. The angular distribution of the scattering is found to exhibit a dependence on the angular momentum projection quantum number (k) of the NH3 product state in addition to the known dependency on the total angular momentum quantum number (J). It is found that for incr
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5

Couto, Rafael Carvalho. "Coupled electron-nuclear dynamics in inelastic X-ray scattering." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/7510.

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Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-06-23T20:11:27Z No. of bitstreams: 2 Tese - Rafael Carvalho Couto - 2016.pdf: 25101346 bytes, checksum: 808fe5c57059f14ca58d1ef0dbe03f00 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Cláudia Bueno (claudiamoura18@gmail.com) on 2017-07-07T20:24:53Z (GMT) No. of bitstreams: 2 Tese - Rafael Carvalho Couto - 2016.pdf: 25101346 bytes, checksum: 808fe5c57059f14ca58d1ef0dbe03f00 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made availa
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6

Inoue, Rintaro. "Dynamics in Polymer Thin Films by Inelastic Neutron Scattering." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/57278.

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7

Fabiani, Elisa. "Dynamics in strong glasses : an inelastic neutron scattering analysis." Université Joseph Fourier (Grenoble), 2005. http://www.theses.fr/2005GRE10031.

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Le but principal de cette thèse est d'effectuer une recherche systématique sur la dynamique des matériaux vitreux à des températures T beaucoup plus petites que la température de transition vitreuse Tg. Des études théoriques et expérimentales, exécutées pendant les deux dernières décennies sur différents aspects de l'état vitreux, ont établi un certain nombre de propriétés particulières qui concernent le dynamique à basse énergie et qui se manifestent dans la chaleur spécifique à basse température, dans la conductivité thermique, et dans la diffusion inélastique expérimentale. Certaines questi
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8

Olgun, Asim. "The kinetics and dynamics of the liquid surface from molecular beam scattering." Thesis, University of Sussex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388968.

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9

Saunders, Oliver Daniel. "Inelastic electron dynamics at clean and midified noble metal surfaces." Thesis, University of Bath, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538282.

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10

Jayne, Allen A. "Inelastic rotation requirements of two-span continuous bridge girders." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 7.08 Mb., p. 153, 2005. http://proquest.umi.com/pqdlink?did=1042538801&Fmt=7&clientId=8331&RQT=309&VName=PQD.

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11

Randall, Colin James. "State-resolved dynamics of electronically inelastic collisions of small free radicals." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/12833.

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The phenomenon of collision-induced electronic energy transfer in selectively excited diatomic radicals has been investigated experimentally. Direct laser excitation of initial rovibronic states and dispersed, temporally-resolved fluorescence analysis of both parent <I>and</I> collisionally populated levels has allowed the collisional encounter to be quantified at a <I>state-specific </I>level. Theoretical modelling of these results allows the form of the potential energy surfaces which control the dynamics to be established. In an extended series of experiments, collision-induced C<SUP>2</SUP
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12

Collins, Timothy L. D. "Inelastic rotational transfer differential cross-sections for Li2-rare gas collisions." Thesis, University of Sussex, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282082.

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13

Godfrey, Denise Caroline. "Reactive and inelastic scattering of CO and Ar from Cu(110)." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389566.

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14

Lewis, Claire Anne. "Observable jets in deep inelastic scattering as a probe of small x dynamics." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/5009/.

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The observation of the underlying small x dynamics arising from the resummation of large terms in In 1/x QCD descriptions of the gluon distribution have been searched for ill deep inelastic scattering experiments at the electron proton collider HERA since the early 1990's. It has been recognized that the first fully inclusive measurements of the proton structure function F2 are too inclusive to identify underlying dynamics. Less inclusive quantities need to be considered. In this thesis a modified form of the BFKL equation is derived which enables the structure of the gluon emissions to be stu
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15

Sirmas, Nick. "Dynamics and Stability of Shock Waves in Granular Gases Undergoing Activated Inelastic Collisions." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36568.

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The present work investigates the dynamics and stability of shock waves in granular gases. The problem was modelled for a piston propagating into a system of disks that can undergo inelastic collisions if an impact threshold is exceeded. The model was addressed numerically at the microscopic and macroscopic levels. The molecular dynamics methodology employed the Event-Driven Molecular Dynamics method, and the continuum model was formulated using the Navier-Stokes equations for granular gases with the transport terms of Jenkins and Richman and a modified cooling rate term. The inviscid stea
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16

Moreno, Carrascosa Andrés. "Theory of elastic and inelastic X-ray scattering." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31442.

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X-rays have been widely exploited to unravel the structure of matter since their discovery in 1895. Nowadays, with the emergence of new X-ray sources with higher intensity and very short pulse duration, notably X-ray Free Electron Lasers, the number of experiments that may be considered in the X-ray regime has increased dramatically, making the characterization of gas phase atoms and molecules in space and time possible. This thesis explores in the theoretical analysis and calculation of X-ray scattering atoms and molecules, far beyond the independent atom model. Amethod to calculate inelastic
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17

Chadwick, Helen J. "Angular momentum polarisation effects in inelastic scattering." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:474b04fa-4f50-4618-88ab-c85878723f2a.

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In this thesis, a joint experimental and theoretical investigation of the vector properties that describe the inelastic scattering of a diatomic radical with an atomic collision partner is presented. A particular emphasis is placed on those correlations that include the final rotational angular momentum, j', of the radical. The depolarisation of both NO(A) and OH(A) brought about through collisions with krypton has been studied, providing a measure of the j-j' correlation, where j is the initial rotational angular momentum associated with the diatom. The total depolarisation cross- sections fo
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18

Watts, Elizabeth Kathleen. "Quantum state-resolved studies of elastic and inelastic scattering of H₂ from Cu and Pd /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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19

Cunsolo, Alessandro. "Relaxation phenomena in the THz dynamics of simple fluids probed by inelastic X-ray scattering." Université Joseph Fourier (Grenoble), 1999. http://www.theses.fr/1999GRE10166.

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La dynamique a l'echelle atomique de differents exemples de fluides simples a ete etudiee dans le domaine de tres hautes frequences (thz) en utilisant la technique de la diffusion inelastique des rayons x avec une resolution de l'ordre du mev. L'etude experimentale est structuree naturellement en trois parties. Dans la premiere, le cas de la dynamique des fluides simples est traite, avec pour exemple, le neon tres au dela du point critique. Dans ce cas, le dynamique attendue doit etre proche de celle du cas simple des fluides a spheres dures, ou les interactions consistent en collisions mutuel
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20

Izzo, Maria Grazia. "High frequency dynamics of fluid binary mixtures." Doctoral thesis, Università degli studi di Trieste, 2010. http://hdl.handle.net/10077/3585.

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2008/2009<br>This thesis is aimed to the study of dynamics in binary fluid mixtures by means of inelastic scattering spectroscopies. Nowadays the understanding of these dynamics is still unsatisfactory. In particular, any model is able to adequately describe collective dynamics beyond the hydrodynamic limit. In such a low momentum (k) and frequency () transfer limit, the collective dynamics is characterized by a single (adiabatic) longitudinal acoustic mode accounting for sound propagation. At frequencies above the hydrodynamics ones a transition towards a decoupled dynamic regime is expe
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21

Ziegler, Fabian. "Investigation of the Structure and Dynamics of Multiferroic Systems by Inelastic Neutron Scattering and Complementary Methods." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E5A6-5.

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22

Hartnagel, Bryan A. "Inelastic design and experimental testing of compact and noncompact steel girder bridges /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841147.

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23

Kargl, Florian. "The interplay of structure and microscopic dynamics in oxidic melts observed by means of inelastic neutron scattering." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=978975618.

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24

Masciovecchio, Claudio. "The inelastic X-Ray scattering as a new technique to investigate the dynamics of glass-forming systems." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10179.

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La principale motivation de cette these a ete l'etude de la dynamique collective des verres et des systemes aptes a former un verre a une echelle spatiale de l'ordre de la distance entre particules. Cette region n'etait pas facilement accessible avant le developpement de la technique de diffusion inelastique de rayons x (ixs), qui permet de mesurer directement le facteur de structure dynamique des particules dans les systemes. Afin d'etudier par ixs les excitations analogues a des modes phonons dans la region mesoscopique, une tres haute resolution en energie est necessaire. Dans ce contexte u
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25

Eyles, Chris J. "An experimental and theoretical study of the dynamics of atom-molecule scattering." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:d887db09-915e-4b3b-80e0-e9f1684518db.

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In this thesis, a joint experimental and theoretical study of the dynamics of atom- molecule collisions will be presented. The focus of this study will be conducted towards the precise, quantitative theoretical description of the collision dynamics in terms of the vectors <strong>k</strong>, <strong>k'</strong>, <strong>j</strong>, and <strong>j'</strong> (the incoming and outgoing relative momenta associated with the collision, and the initial and final rotational angular momentum of the target diatom respectively) that define the collision, and on the experimental measurement of these vector
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26

Um, Youngje [Verfasser], and Bernhard [Akademischer Betreuer] Keimer. "A study of lattice dynamics in iron-based superconductors by inelastic light scattering / Youngje Um. Betreuer: Bernhard Keimer." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2014. http://d-nb.info/1049688813/34.

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27

PARMENTIER, ALEXANDRA. "FOLLOW THE WATER: an insight into proton quantum dynamics of selected phases of water by inelastic neutron scattering." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2016. http://hdl.handle.net/2108/201939.

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The present PhD thesis stems from 36 months of intensive experimental investigation and data analysis of quantum dynamics of the hydrogen nucleus in various amorphous solid states (AIs) and supercritical phase (SCW) of water by inelastic neutron scattering. This doctoral effort places this work into the apparently inexhaustible stream of studies on water, at the same time offering an evidence of the role of density in shapingthesingle-particlepotential-energysurfaceintermsofcurvatureandanharmonicity,ashighlightedbyarecenthigh-impactpublicationinJ. Phys. Chem. Lett. [1]. The layout of the monogra
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28

Gordon, Sean Dennis Steven. "Two and three vector correlations in the rotationally inelastic scattering of state-selected NO(X)." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:ec0f133b-b2ef-482c-b90c-59fc313c8baa.

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In this thesis, an experimental and theoretical study of two and three vector correlations in the inelastic scattering of NO(X) with various rare gas atoms is presented. Vector correlations for a selection of rare gas systems were determined experimentally, and the observations were interpreted using a variety of classical and quantum mechanical models. The experiment is able to provide state-to-state resolution of the dynamics by means of an electrostatic hexapole and 1+1' resonantly enhanced multi-photon ionisation (REMPI). The simplest vector correlation of interest is the differential cros
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29

Sugimoto, Koudai. "Theoretical Study of Electron Dynamics in Multi-Orbital Antiferromagnetic Metals." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199089.

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30

Laurent, Sébastien. "Dynamics and stability of a Bose-Fermi mixture : counterflow of superfluids and inelastic decay in a strongly interacting gas." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEE023/document.

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La compréhension des effets des interactions dans un ensemble de particules quantiques représente un enjeu majeur de la physique moderne. Les atomes ultra-froids sont rapidement devenus un outil incomparable pour étudier ces systèmes quantiques fortement corrélés. Dans cette thèse, nous présentons plusieurs travaux portant sur les propriétés d’un mélange de superfluides de Bose et de Fermi créé à l’aide de vapeurs ultra-froides de ⁷Li et de ⁶Li. Nous étudions tout d'abord les propriétés hydrodynamiques du mélange en créant un contre-courant entre les superfluides. L'écoulement est dissipatif u
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31

Liu, Yun 1973. "Studies of structure and dynamics of biological macro-molecular assemblies by low angle neutron diffraction and inelastic X-ray scattering." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34438.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 2005.<br>Includes bibliographical references (leaves 141-148).<br>This thesis is organized into two parts which focus on the studies of the dynamic structure factor and static inter-particle structure factor respectively. In the first part, we have measured and analyzed the dynamic structure factors of aligned 40 wt% calfthymus Na-DNA molecules with the inelastic X-ray scattering (IXS). In the second part, we have developed a new efficient method to calculate the inter-particle structure factor in a simple fl
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32

PANTALEI, CLAUDIA. "Single-particle dynamics of helium mixtures and 4He in nanometric confinement." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2008. http://hdl.handle.net/2108/473.

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Scopo di questa tesi e' lo studio, tramite Deep Inelastic Neutron Scattering, della dinamica microscopica di due differenti sistemi di elio, a bassa temperatura (circa 2 K): una miscela isotopica (nella fase fluida e vicino al punto di melting) e 4He in in confinamento nanometrico. L'interesse per l'elio, gia' dai primi decenni del `900, nasce dalla sua unica proprieta': e' l'unico elemento in natura a non avere una fase solida allo zero assoluto. A basse temperature, quindi, presenta effetti quantistici, normalmente trascurabili in altri sistemi fisici, che nelle stesse condizioni soli
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33

Söderström, Johan. "Soft X-ray Scattering Dynamics Close to Core Ionization Thresholds in Atoms and Molecules." Doctoral thesis, Uppsala University, Department of Physics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7832.

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<p>In this Thesis studies of highly excited states in gas-phase atoms and molecules (He, Ne, N<sub>2</sub>, O<sub>2</sub>, N<sub>2</sub>O and CO<sub>2</sub>) using a variety of synchrotron-radiation based techniques are presented. The three techniques used most frequently are X-ray-emission-threshold-electron coincidence (XETECO), X-ray emission spectroscopy (XES) and X-ray photoelectron spectroscopy (XPS) and they are all given a brief introduction. </p><p>The fluorescence yield (FY) from doubly excited states in helium near the N=2 threshold(s) has been investigated in weak static external m
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34

Alić, Amina. "Femtosecond electron dynamics investigated by resonant x-ray scattering in strongly-correlated materials." Electronic Thesis or Diss., Sorbonne université, 2025. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2025SORUS039.pdf.

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Cette thèse explore la dynamique ultrarapide des électrons dans une sélection de matériaux fortement corrélés, connus pour leurs propriétés telles que la valence mixte ou la multiferroïcité. En étudiant ces systèmes à des échelles de temps très courtes (de l'ordre de la picoseconde ou moins), nous visons à démêler les degrés de liberté couplés des spins, charges, orbitales et réseaux cristallins. Nous avons étudié la dynamique des électrons dans TmSe, NiO et TbMnO3. Pour le cas de TmSe, il s'agit d'un système à valence mixte homogène. Nous avons démontré les possibilités et les limites de la d
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35

Ziegler, Fabian [Verfasser], Götz [Akademischer Betreuer] Eckold, Götz [Gutachter] Eckold, and Dietmar [Gutachter] Stalke. "Investigation of the Structure and Dynamics of Multiferroic Systems by Inelastic Neutron Scattering and Complementary Methods / Fabian Ziegler ; Gutachter: Götz Eckold, Dietmar Stalke ; Betreuer: Götz Eckold." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://d-nb.info/1179449266/34.

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36

Angelini, Roberta. "Study of the high frequency dynamics in hydrogen bonded liquid systems by inelastic x-rays scattering : the case of hydrogen fluoride and (HF)x(H2O)1-x solutions." Université Joseph Fourier (Grenoble), 2003. http://www.theses.fr/2003GRE10036.

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La dynamique aux hautes fréquences de deux systèmes à liaison hydrogène, l'acide fluorhydrique (HF) et les solutions aqueuses (HF)x (H2O)1-x, a été étudiée par diffusion inélastique des rayons X. La comparaison avec des simulations de dynamique moléculaire montre la présence de deux processus de relaxation actifs dans 1 'HF avec un temps de relaxation inférieur à la picoseconde. Ce scénario, proche de celui de l'eau liquide, suggère que les liquides à liaison hydrogène ont un comportement similaire à des systèmes différents (les liquides simples et ceux aptes à former des verres). Ceci indique
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37

Gonzalez, Jose Ignacio. "Quantum Optoelectronics: Nanoscale Transport in a New Light." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-04062006-110542/.

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Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2006.<br>Dr. C. P. Wong, Committee Member ; Dr. C. David Sherrill, Committee Member ; Dr. Thomas M. Orlando, Committee Member ; Dr. Mostafa A. El-Sayed, Committee Member ; Dr. Robert M. Dickson, Committee Chair.
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38

Beauvois, Ketty. "Etude de la dynamique de l'3He liquide et de l'4He superfluide par diffusion inélastique de neutrons." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY094/document.

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L’étude des corrélations dans les fluides quantiques est abordée dans cette thèse par le biais de mesures neutroniques de leurs excitations élémentaires. Nos recherches sont motivées par les théories récentes qui permettent désormais de décrire ces excitations jusqu’à des vecteurs d’onde atomiques. Par ailleurs, les nouvelles performances du spectromètre temps de vol IN5 de l’ILL offrent la possibilité de réaliser des mesures précises dans une large gamme d’énergie et de vecteur d’onde. Dans le cas de l’4He, l’isotope bosonique, les mesures de diffusion inélastique ont été réalisées à très bas
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39

Seel, Andrew G. "Incoherent neutron scattering studies of select inorganic systems : I. Nuclear momentum measurements of multiple masses, II. The dynamics of coordinated ammonia in zeolite A." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:48e7a487-b203-46d6-9bb3-2866b1d98f1b.

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Spectroscopic measurements are detailed within this thesis, utilising incoherent neutron scattering to examine the dynamics of various condensed-matter systems, from nanosecond to sub-femtosecond timescales. The body of this work is divided into two distinct areas of research. I. Nuclear Momentum Measurements of Multiple Masses Deep inelastic neutron scattering (DINS) is used to probe the nuclear momentum distributions and kinetic energies of individual atomic species in sodium hydride (both in bulk and as nanoparticulates within a silica matrix), enriched lithium-7 fluoride and lithium tetra-
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40

Lorenz, Wolfram [Verfasser], Bernd [Akademischer Betreuer] Büchner, and Rüdiger [Akademischer Betreuer] Klingeler. "On the Spin-Dynamics of the Quasi-One-Dimensional, Frustrated Quantum Magnet Li2CuO2 : Studies by means of Inelastic Neutron Scattering and Thermodynamic Methods / Wolfram Lorenz. Gutachter: Bernd Büchner ; Rüdiger Klingeler. Betreuer: Bernd Büchner." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://d-nb.info/1067190074/34.

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41

Lorenz, Wolfram E. A. [Verfasser], Bernd [Akademischer Betreuer] Büchner, and Rüdiger [Akademischer Betreuer] Klingeler. "On the Spin-Dynamics of the Quasi-One-Dimensional, Frustrated Quantum Magnet Li2CuO2 : Studies by means of Inelastic Neutron Scattering and Thermodynamic Methods / Wolfram Lorenz. Gutachter: Bernd Büchner ; Rüdiger Klingeler. Betreuer: Bernd Büchner." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-71010.

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42

Ruta, Béatrice. "Les propriétés vibrationnelles des verres : une étude expérimentale dans la région de transition entre le régime microscopique et macroscopique." Grenoble, 2010. http://www.theses.fr/2010GRENY034.

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Une des questions les plus ambitieuses dans la Physique de la Matière Condensée concerne la compréhension des propriétés vibrationnelles des verres. En particulier, une anomalie présente dans la densité d’états vibrationnels (VDOS) à des énergies de quelques meV a suscité beaucoup d’intérêt en raison de sa présence universelle dans les verres. Cette anomalie, appelée “boson peak” (BP), apparaît comme un pic dans la VDOS réduite par rapport à la prévision du continuum élastique de Debye, dans une région d’énergies où le modèle de Debye fonctionne encore assez bien pour les correspondants crista
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43

Perkins, Thomas Edward James. "The effects of electronic quenching on the collision dynamics of OH(A) with Kr and Xe." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:5998e249-35ff-4d05-9c13-9b65d59b11d9.

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This thesis presents an experimental and theoretical study of the collision dynamics of OH(A<sup>2</sup>Σ<sup>+</sup>) with Kr and Xe. These two systems both exhibit a significant degree of electronically non-adiabatic behaviour, and a particular emphasis of the work presented here is to characterise the competition and interplay between electronic quenching on the one hand, and electronically adiabatic collisional processes on the other. Quenching takes place close to the bottom of the deepest potential well for both systems. In collisions that remain in the excited electronic state, this sam
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44

Chefdeville, Simon. "Dynamique de collisions moléculaires à très basse énergie : mise en évidence expérimentale de résonances quantiques." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0340/document.

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Les calculs théoriques prévoient que la dynamique d’excitation rotationnelle desmolécules CO et O2, induite par collision avec H2, est dominée par des résonancesquantiques aux très basses énergies. Leur mise en évidence expérimentale estrendue difficile par la nécessité d’obtenir des énergies de collision très faibles et unegrande résolution en énergie. Les expériences menées grâce à un montage defaisceaux moléculaires croisés à angle d’intersection variable, nous permettent ainsid’observer le seuil des transitions j = 0  1 de CO à 3,85 cm-1 et Nj = 10  11 de O2à 3,96 cm-1. Ces énergies corr
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45

Valle, Orero Jessica. "Dynamics and thermal behaviour of films of oriented DNA fibres investigated using neutron scattering and calorimetry techniques." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2012. http://tel.archives-ouvertes.fr/tel-00734670.

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The majority of structural studies on DNA have been carried out using fibre diffraction, while studies of its dynamics and thermal behaviour have been mainly performed in solution. When the DNA double helix is heated, it exhibits local separation of the two strands that grow in size with temperature and lead to their complete separation. This work has investigated various aspects of this phenomenon. The experiments reported in this thesis were carried out on films of oriented fibres of DNA prepared with the Wet Spinning Apparatus. Thus, sample preparation and characterisation are essential par
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46

McEniry, E. J. "Dynamical Simulation of Inelastic Quantum Conduction." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527855.

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47

Sunthar, P. "Characterisation and Analysis of a Vibro-fluidised Granular Material." Thesis, Indian Institute of Science, 2001. https://etd.iisc.ac.in/handle/2005/249.

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The present work is concerned with the mathematical modelling of a bed of granular material in a gravitational field vertically fluidised by a vibrating surface. The particles are in rapid motion, and lose energy by inelastic collisions. The steady state is maintained by a balance of the rate of dissipation of energy in inelastic particle collisions and the rate of transfer of energy due to particle collisions with the vibrating surface. The limit where the energy dissipation due to inelastic collisions is small compared to the mean kinetic energy of the particles is considered. This non-equi
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48

Sunthar, P. "Characterisation and Analysis of a Vibro-fluidised Granular Material." Thesis, Indian Institute of Science, 2001. http://hdl.handle.net/2005/249.

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The present work is concerned with the mathematical modelling of a bed of granular material in a gravitational field vertically fluidised by a vibrating surface. The particles are in rapid motion, and lose energy by inelastic collisions. The steady state is maintained by a balance of the rate of dissipation of energy in inelastic particle collisions and the rate of transfer of energy due to particle collisions with the vibrating surface. The limit where the energy dissipation due to inelastic collisions is small compared to the mean kinetic energy of the particles is considered. This non-equil
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49

Li, Qingming. "Dynamic inelastic response and failure of structural elements." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266315.

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The dynamic shear response and failure of structural elements under transverse impact loads are studied in the present work. The dynamic shear response is one of the important response modes in structural elements under transverse impact loads, which may lead to various shear failures depending on the loading rates and intensities. Transverse shear localization phenomena, which are represented by a shear hinge, have been observed in several structural elements when subjected to transverse dynamic loading and are studied in this thesis. The features of a stationary shear hinge are illustrated u
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50

Zhu, Ling. "Dynamic inelastic behaviour of ship plates in collision." Thesis, University of Glasgow, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324960.

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