Teses / dissertações sobre o tema "Large spin"
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Charnock, Gareth Trevor Patrick. "Computational spin dynamics and visualisation of large spin systems". Thesis, University of Oxford, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.601126.
Texto completo da fonteZimmermann, Robert. "How large spheres spin and move in turbulent flows". Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2012. http://tel.archives-ouvertes.fr/tel-00737746.
Texto completo da fonteCho, HyungJoon Ph D. Massachusetts Institute of Technology. "Exploring large coherent spin systems with solid state NMR". Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34432.
Texto completo da fonteIncludes bibliographical references (p. 119-124).
Solid state Nuclear Magnetic Resonance (NMR) allows us to explore a large coherent spin system and provides an ideal test-bed for studying strongly interacting multiple-spin system in a large Hilbert space. In this thesis, we experimentally investigate the spin dynamics in a rigid lattice of dipolarly coupled nuclear spins using multiple quantum NMR spectroscopy. Encoding multiple quantum coherences (MQC) in an arbitrary quantizing axis is developed. We utilized this method to encode coherence numbers in an orthogonal basis to Zeeman basis and showed that the dipolar-ordered state is a two spin correlated state, and confirmed the presence of the ... (flip-flop) terms in the experimentally prepared dipolar-ordered state. A new experimental investigation of the problem of the NM:R free induction decay (FID) in a lattice of spin 1/2 nuclei is presented to verify the multi-spin nature of the FID and the dominant role of the geometrical arrangement of the spins in the development of higher order correlations under the dipolar evolution. To study the dynamics and the controllability of these multiple spin correlations, effective decay times of individual coherence orders are measured under the dipolar interaction and under the control sequence that suppresses the dipolar evolution.
(cont.) It is seen that the decay time of each coherence order becomes shorter and more uniform among different coherence orders as the spin correlation size grows larger in both cases. Additional work has been done in this thesis, toward creating a pure state in solid state nuclear spins by transferring polarization from electron spins, i.e Dynamic Nuclear Polarization (DNP). A new cryogenic DNP probe was developed enabling multiple pulse irradiations at low temperature with enhanced polarization.
by HyungJoon Cho.
Ph.D.
McNicholas, Stuart James. "Core optimisation in spin-coupled theory applied to large systems". Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387998.
Texto completo da fonteWisniewski, Daniel. "Simulations of Dynamic Nuclear Polarization pathways in large spin ensembles". Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/39045/.
Texto completo da fonteChenattukuzhiyil, Safeer. "Study of domain wall dynamics in the presence of large spin orbit coupling : chiral damping and magnetic origami". Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAY080/document.
Texto completo da fonteMagnetic domain wall (DW) dynamics is currently attracting tremendous interest both from a fundamental point of view as well as in relation with emerging magnetic memory and logic devices. New DW-based devices were recently proposed, for example to replace hard drive disks with higher density and faster date transfer. Moreover, in Magnetic Random Access Memory (MRAM), identified as one of the most promising candidate for DRAM and SRAM replacement, switching occurs through DW propagation. Control of current induced DW dynamics has long been a challenge mainly due to material imperfections. Only some years ago, fast and controllable motions were reported in multilayers presenting structural inversion asymmetry (SIA). More recently, a mechanism was proposed based on the presence of spin orbit torques and Dzyaloshinskii-Moriya interaction (DMI), both phenomena originating from the spin orbit interaction and needing (SIA).My initial objective was to test this model in two systems presenting different SIA. In Pt/Co/Pt multilayers with weak SIA, I studied both current and field induced DW motion and evidenced a chiral damping. This new phenomena, counterpart of the DMI for the dissipative aspects, influences both current and field induced dynamics and has to be taken into account for a complete picture of the mechanism. In Pt/Co/AlOx multilayers with strong SIA, I studied new geometries where the DW motion the and current flow are not collinear. I evidenced asymmetric DW motion as a function of this non-collinearity that cannot be explained with a simple SOT+DMI model. Based on these experimental results I introduce a new device concept named “magnetic origami”: the shape of the device governs the switching mechanism. This concept provides large flexibility to construct fast, low power non-volatile magnetic memory: different functionalities can be achieved on a wafer by simply mastering the shape of the different elements. I show the proof of concept of two such devices
Zalma, Carre Alison. "Monitoring folding pathways for large RNAs using site-directed spin-labeling techniques". Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/4904.
Texto completo da fonteMurch, Austin Matthew. "Aerodynamic Modeling of Post-Stall and Spin Dynamics of Large Transport Airplanes". Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/18855.
Texto completo da fonteKerzhner, Mark [Verfasser]. "Site-Directed Spin Labeling of Large Riboswitches Using Click Chemistry / Mark Kerzhner". Bonn : Universitäts- und Landesbibliothek Bonn, 2019. http://d-nb.info/1181855756/34.
Texto completo da fonteBrasil, Jader Eckert. "Probabilidades de spin quântico em temperatura positiva". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/177601.
Texto completo da fonteIn this dissertation we study a probability derived from Quantum Statistical Mechanics through the viewpoint of Ergodic Theory. The probability is obtained from a KMS state acting on a one dimensional lattice of quantum spins. We show that this probability is mixing for the shift map. Moreover, we show that a large deviation principle is true for a certain class of functions and we explore some properties of the Jacobian. We will consider the KMS state associated to a certain specific Hamiltonian acting on the quantum spin lattice. In the initial sections we will present some concepts and prerequisites (such as density operators, tensor product, C*-algebras and KMS states) for the understanding of our main results.
LONGO, EMANUELE MARIA. "HETEROSTRUCTURES BASED ON THE LARGE-AREA Sb2Te3 TOPOLOGICAL INSULATOR FOR SPIN-CHARGE CONVERSION". Doctoral thesis, Università degli Studi di Milano-Bicocca, 2021. http://hdl.handle.net/10281/311358.
Texto completo da fonteSpin-based electronic devices constitute an intriguing area in the development of the future nanoelectronics. Recently, 3D topological insulators (TI), when in contact with ferromagnets (FM), play a central role in the context of enhancing the spin-to-charge conversion efficiency in FM/TI heterostructures. The main subject of this thesis is the study of the chemical-physical interactions between the granular and epitaxial Sb2Te3 3D-TI with Fe and Co thin films by means of X-ray Diffraction/Reflectivity, Ferromagnetic Resonance spectroscopy (FMR) and Spin Pumping-FMR. Beside the optimization of the materials properties, particular care was taken on the industrial impact of the presented results, thus large-scale deposition processes such as Metal Organic Chemical Vapor Deposition (MOCVD) and Atomic Layer Deposition (ALD) were adopted for the growth of the Sb2Te3 3D-TI and part of the FM thin films respectively. A thorough chemical, structural and magnetic characterization of the Fe/granular Sb2Te3 interface evidenced a marked intermixing between the materials and a general bonding mechanism between Fe atoms and the chalcogen element in chalcogenide-based TIs. Through rapid and mild thermal treatments performed on the granular Sb2Te3 substrate prior to Fe deposition, the Fe/granular-Sb2Te3 interface turned out to be sharper and chemically stable. The study of ALD-grown Co thin films deposited on top of the granular-Sb2Te3 allowed the production of high-quality Co/granular-Sb2Te3interfaces, with also the possibility to tune the magneto-structural properties of the Co layer through a proper substrate selection. In order to improve the structural properties of the Sb2Te3, specific thermal treatments were performed on the as deposited granular Sb2Te3, achieving highly oriented films with a nearly epitaxial fashion. The latter substrates were used to produce Au/Co/epitaxial-Sb2Te3 and Au/Co/Au/epitaxial-Sb2Te3 and the dynamic of the magnetization in these structures was investigated studying their FMR response. The FMR data for the Au/Co/Sb2Te3 samples were interpreted considering the presence of a dominant contribution attributed to the Two Magnon Scattering (TMS), likely due to the presence of an unwanted magnetic roughness at the Co/epitaxial-Sb2Te3 interface. The introduction of a Au interlayer to avoid the direct contact between Co and Sb2Te3 layers was shown to be beneficial for the total suppression of the TMS effect. SP-FMR measurements were conducted on the optimized Au/Co/Au/epitaxial-Sb2Te3 structure, highlighting the role played by the epitaxial Sb2Te3substrate in the SP process. The SP signals for the Au/Co/Au/Si(111) and Co/Au/Si(111) reference samples were measured and used to determine the effective spin-to-charge conversion efficiency achieved with the introduction of the epitaxial Sb2Te3 layer. The extracted SCC efficiency was calculated interpreting the SP-FMR data using the Inverse Edelstein effect and Inverse Spin-Hall effect models, which demonstrated that the Sb2Te3 3D-TI is a promising candidate to be employed in the next generation of spintronic devices.
Zheng, Xiaochao 1977. "Precision measurement of neutron spin asymmetry An1 at large xBj using CEBAF at 5.7 GeV". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/29310.
Texto completo da fonteIncludes bibliographical references (p. 263-276).
Nucleon spin structure has remained one of the key issues of hadronic physics since the 1980's. Among the unsolved questions, the neutron spin structure in the valence quark region (the large Bjorken variable XBj region) is of particular interest. The few data that existed in the large XBj region are very imprecise. Also, theoretical predictions based on Quantum Chromo-Dynamics (QCD) are difficult to carry out accurately in this non-perturbative region and having good experimental data is very important to test the models. Taking advantage of the polarized continuous-wave (CW) electron beam at Jefferson Laboratory (JLAB) and a high-density polarized 3He target in Hall A, we have measured the neutron spin asymmetry An1 and spin structure function gn1 to a good precision at three kinematics x = 0.33, 0.47 and 0.60, with Q2 = 2.7, 3.6 and 4.9 (GeV/c)2, respectively. The data at the two higher XBj points have improved the statistical accuracy of the world data by one order of magnitude. They show a zero crossing point around XBj = 0.47 and the datum at XBj = 0.60 is significantly positive. To determine An and g, cross sections and asymmetries of inclusive 3He(e,e') scattering have been measured in the deep-inelastic region. The transverse spin asymmetry An and structure function g were also extracted from data, though with less statistical precision. The asymmetries of pion photoproduction A[pi]⁻ were obtained as a byproduct.
(cont.) Combined with world fit of proton gP1/Ff1 data and the quark distribution ratio d/u, the polarized quark distributions ... have been obtained from gn1/Fn1 data. Results of ... at all three XBj points are negative, in disagreement with the predictions from pQCD based hadron helicity conservation. This dissertation will first give an introduction to the theories and formalism of polarized deep inelastic scattering and a review of the theories of An1. Next the experiment E99-117 at JLAB Hall A will be described, followed by the data analysis which yields results for ... The data presented greatly improve the current world fit of neutron polarized structure functions and provide valuable insight in the understanding of the neutron spin structure.
by Xiaochao Zheng.
Ph.D.
Stumpf, Michael Peter Helmuth. "Interplay magnetism and temperature in the large-demensional limits of the Hubbard and t-J models". Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299159.
Texto completo da fonteTrifa, Youssef. "Dynamiques de corrélations et d'intrication dans des gaz d'atomes froids". Electronic Thesis or Diss., Lyon, École normale supérieure, 2024. http://www.theses.fr/2024ENSL0018.
Texto completo da fonteThe quantum many-body problem, and especially the study of dynamical properties of a multipartite quantum system, is one of the hardest problems of modern physics. There exist only a few analytical results and exact numerical simulations require an amount of resources that grow exponentially with the system size.In this thesis, we studied correlations and entanglement properties for systems composed of magnetic atoms on a lattice, for instance via the generation of spin squeezing. For this purpose we have developed new approximate numerical methods that allow us to study large system sizes. This enabled us to propose protocols to generate an amount of spin squeezing that scales with the system size. The advantage is twofold. Since spin squeezing is an entanglement witness, this would allow for entanglement detection in a system of magnetic atoms - which has yet to be realized experimentally. Moreover, spin squeezing offers an important metrological advantage, asspin-squeezed states can be used for extremely precise measurements of external magnetic fields, far beyond what one can achieve within dependent atoms.Finally, we studied the generation of other forms of entanglement, namely Dicke squeezing (of spin or momentum), in systems of Bose condensed atoms. This form of entanglement is well-known in spin-1 atomic condensates. Here, we propose a protocol to generalize it to the case of momentum modes, using a time-dependent Hamiltonian. The entangled states generated during the dynamics are potentially useful for the precision measurements of inertial forces
Huang, Biao. "Exploring New Physics in Ultracold Quantum Gases: High Spin Fermions and Non-Trivial Background Manifolds". The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468280791.
Texto completo da fonteZiaei, Vafa [Verfasser]. "Theoretical methods for studying charge and spin separation in excited states of large molecules and condensed phase / Vafa Ziaei". Bonn : Universitäts- und Landesbibliothek Bonn, 2018. http://d-nb.info/1154485943/34.
Texto completo da fonteHollmann, Arne [Verfasser], Hendrik [Akademischer Betreuer] Bluhm e Dominique [Akademischer Betreuer] Bougeard. "Relaxation and decoherence of a 28Si/SiGe spin qubit with large valley splitting / Arne Hollmann ; Hendrik Bluhm, Dominique Bougeard". Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/122008252X/34.
Texto completo da fonteLagarde, Delphine. "Dynamique de spin dans des structures semiconductrices à base de ZnO et de GaN". Toulouse, INSA, 2008. http://eprint.insa-toulouse.fr/archive/00000229/.
Texto completo da fonteThis thesis work is a contribution to the study of the spin dynamics of carriers in ZnO- or GaN-based wide bandgap semiconductor structures. We use time-resolved optical pumping experiments dedicated to the ultra-violet to measure spin relaxation times in those structures. The spin properties of hole and exciton in epitaxial layers of ZnO have been analysed from the polarization properties of the photoluminescence detected from neutral-donor bound exciton complexes. We measure both the localized hole spin relaxation time and spin decoherence time and have evidenced the fast spin relaxation time of the free exciton. We have also performed optical orientation experiments on cubic (zinc blende) GaN structures, from bulk material to quantum dots. In those, by studying the optical alignment of exciton spin under quasi-resonant excitation, we demonstrate the quenching of the exciton spin relaxation up to room temperature
Müller, Patrick Erich [Verfasser]. "Limiting Properties of a Continuous Local Mean-Field Interacting Spin System : Hydrodynamic Limit, Propagation of Chaos, Energy Landscape and Large Deviations / Patrick Erich Müller". Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1122193866/34.
Texto completo da fontePacuski, Wojciech. "Spectroscopie optique de semi-conducteurs magnétiques dilués à large bande interdite, à base de ZnO et GaN". Phd thesis, Grenoble 1, 2007. http://www.theses.fr/2007GRE10310.
Texto completo da fonteThis work presents a magnetooptical study of diluted magnetic semiconductors (DMS) based on ZnO and GaN, doped with manganese, iron, and cobalt. Both host materials, ZnO and GaN, are wide band gap semiconductors with a wurtzite structure, a weak spin-orbit coupling and a strong electron-hole exchange interaction within the excitons. In the presence of a magnetic field, the magnetic ions induce in such materials a giant Zeeman effect with a complex behavior: excitons anti-cross, and not only the transition energies, but also the oscillator strengths are strongly affected by the giant Zeeman effect. On thin epitaxial layers grown on (0001) sapphire, we observed the giant Zeeman splitting of the A and B excitons, which are optically active in the Faraday configuration when the propagating light is parallel to the c-axis. The Zeeman splitting decreases with the temperature and increases non-linearly with the magnetic field, demonstrating a dependence on the magnetization of the localized spins. A quantitative analysis allows us to discuss the detailed behavior of the magnetization and to estimate the p-d exchange integral beta for the studied wide bandgap DMS. For the d^5 electronic configuration (Mn2+, and Fe3+) the magnetization follows a Brillouin function, whereas, for d7 or d4 of Co2+, and Mn3+, respectively, the spin orbit coupling and the trigonal crystal field lead to an anisotropic magnetization, consistent with that deduced independently from the analysis of intra-ionic optical transitions. We find a positive sign of beta for (Ga,Mn)N, and (Ga,Fe)N. In ZnO, the sign of the spin-orbit interaction, which determines the structure of the valence band, has been a matter of debate. Assuming that the valence band ordering in ZnO is Gamma_9, Gamma_7, Gamma_7 (this corresponds to usual, positive sign of the spin-orbit coupling), we find beta to be negative for (Zn,Co)O, and to be close to zero in (Zn,Mn)O. However, assuming the reversed valence band ordering, we find beta to be positive in both ZnO based DMS. The sign and the value of p-d exchange integrals determined from our magnetooptical measurements do not follow material trends in DMS and cannot be explained by models based on the virtual crystal approximation. This suggests that the p-d coupling in wide gap DMS is in the strong coupling regime, so that the nature of the observed giant Zeeman splitting is different from that in classical diluted magnetic semiconductors
Pacuski, Wojciech. "Spectroscopie optique de semi-conducteurs magnétiques dilués à large bande interdite, à base de ZnO et GaN". Phd thesis, Université Joseph Fourier (Grenoble), 2007. http://tel.archives-ouvertes.fr/tel-00296634.
Texto completo da fonteOn a mesuré expérimentalement le splitting Zeeman géant des excitons A et B avec des couches epitaxiées sur saphir (0001) et une propagation de la lumiere parallele a l'axe c du cristal et au champ magnétique (configuration Faraday). Le splitting Zeeman géant diminue avec la température et augmente non linéairement avec le champ magnétique en accord avec l'aimantation calculée des spins isolés. Une analyse quantitative nous a permis d'analyser les propriétés magnétiques et de mesurer les intégrales d'échange pour l'ensemble des matériaux étudiés. Pour des ions avec une configuration d5 (Mn2+ et Fe3+), l'aimantation suit une fonction de Brillouin, mais pour les configurations d7 et d4 (Co2+ ou Mn3+) l'interaction spin-orbite et le champ cristallin trigonal induisent une aimantation anisotrope, en accord avec l'analyse des transitions internes des ions mesurées en spectroscopie infrarouge. Pour (Ga,Mn)N, et (Ga,Fe)N, nous avons trouvé un signe positive pour l'intégrale d'échange entre trous et spins localisés (beta). En supposant une symétrie de la bande de valence dans ZnO correspondant a une interaction spin-orbite positive (Gamma_9, Gamma_7, Gamma_7), nous trouvons un signe négative de beta pour (Zn,Co)O, et beta est de pres de zéro pour (Zn,Mn)O. Toutefois, dans l'hypothese avec spin-orbite négative, nous trouvons un signe positif de beta. Les signes et les valeurs des intégrales d'échange déterminées a partir de nos mesures magnéto-optiques ne peuvent pas etre expliqués par des tendances matérielles et des modeles basés sur l'approximation de cristal virtuel. Ceci suggere que l'échange p-d en DMS a large bande interdite, soit dans le régime de couplage fort, et la nature de splitting Zeeman géant observé est différente qu'en semi-conducteurs magnétiques dilués classiques.
Dall'Olio, Daniele. "Applicazione di un algoritmo d’apprendimento basato su sistemi fuori dall’equilibrio a dati di Genome Wide Association". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18499/.
Texto completo da fonteSinha, Suddhasattwa. "Coherent control of dipolar coupled spins in large Hilbert spaces". Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/41278.
Texto completo da fonteIncludes bibliographical references (p. 101-106).
Controlling the dynamics of a dipolar-coupled spin system is critical to the development of solid-state spin-based quantum information processors. Such control remains challenging, as every spin is coupled to a large number of surrounding spins. In this thesis, we primarily focus on developing coherent control techniques for such large spin systems. We start by experimentally simulating spin squeezing using a liquid-state NMR quantum information processor. We demonstrate that the precision of quantum control obtained using strongly modulating pulses was sufficient to reproduce the theoretically expected behavior of the spin observables and the associated entanglement measures among the underlying qubits. We then investigate coherent control in a more complex solid-state spin system consisting of an ensemble of spin pairs. Using pulse amplitude modulation techniques, we decouple the weaker interactions between different pairs and extend the coherence lifetimes within the two-spin system. This is achieved without decoupling the stronger interaction between the two spins within a pair. We thus demonstrated that it is possible to restrict the evolution of a dipolar coupled spin network to a much smaller subspace of the system Hilbert space which allows us to significantly extend the phase coherence times for selected states. Finally, we demonstrate the sensitivity of highly correlated multiple-quantum states to the presence of rare spin defects in a solid-state spin system.
(cont.) We design two multiple-pulse control sequences - one that suspends all spin interactions in the system including that of the defect spins, while the other selectively allows the defect spins to interact only with the abundant spins. By measuring the effective relaxation time of the rare spins, we demonstrate the efficiency of the two control sequences. Furthermore we observe that for small spin cluster sizes, the sensitivity of the highly correlated spin states to the spin defects depends on the coherence order of these correlated spin states. But beyond a certain cluster size, one observes a saturation effect as the higher coherence orders are no longer increasingly sensitive to the defect spin dynamics.
by Suddhasattwa Sinha.
Ph.D.
Lange, Karsten [Verfasser]. "Two-mode entanglement in spin and spatial degrees of freedom / Karsten Lange". Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2018. http://d-nb.info/1166313921/34.
Texto completo da fonteWerner, Åström Petter. "Experimental study on innovative connections for large span structural timber trusses". Thesis, KTH, Byggnadsmaterial, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-256507.
Texto completo da fonteFranzén, Daniel. "Large Swedish industrial companies : Farsightedness in business and sustainability strategies". Thesis, KTH, Organisation och ledning, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155175.
Texto completo da fonteTaleb, Bahaa. "Behavior of large-span metal and reinforced concrete culverts under earth and live loadings". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ58239.pdf.
Texto completo da fonteBadoil, B. "CONTROLE SPECTROPHOTOMETRIQUE LARGE BANDE DE FILTRES INTERFERENTIELS EN COURS DE DEPOT". Phd thesis, Université Paul Cézanne - Aix-Marseille III, 2007. http://tel.archives-ouvertes.fr/tel-00472428.
Texto completo da fonteJohnson, Nathan Stuart. "Large-scale experimental and analytical seismic studies of a two-span reinforced concrete bridge system". abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3210946.
Texto completo da fonteLemoult, Mélanie. "Contribution à l'étude et la modélisation du bruit à large bande à l'éjection des moteurs d'hélicoptères". Phd thesis, Ecole Centrale de Lyon, 2010. http://tel.archives-ouvertes.fr/tel-00625731.
Texto completo da fonteReboul, Gabriel. "Modélisation du bruit à large bande de soufflantes de turboréacteurs". Phd thesis, Ecole Centrale de Lyon, 2010. http://tel.archives-ouvertes.fr/tel-00562647.
Texto completo da fonteXiang, Shengqi [Verfasser], Markus [Akademischer Betreuer] Zweckstetter, Reinhard [Akademischer Betreuer] Lührmann, Ralf [Akademischer Betreuer] Ficner, Bert de [Akademischer Betreuer] Groot, Adam [Akademischer Betreuer] Lange e Lars Thorsten [Akademischer Betreuer] Kuhn. "Structural insights into Arginine-Serine rich proteins and N-H spin-spin coupling constants / Shengqi Xiang. Gutachter: Reinhard Lührmann ; Ralf Ficner ; Bert de Groot ; Adam Lange ; Lars Thorsten Kuhn. Betreuer: Markus Zweckstetter". Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://d-nb.info/1044871229/34.
Texto completo da fonteKargarmoakhar, Ramtin. "Large-Scale Testing to Study the Effects of Critical Parameters on the Aerodynamic Behavior of Long Span Bridges". FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/1857.
Texto completo da fonteGoméz, María Teresa. "El largo viaje the long journey : the cultural politics of the Communist Party of Spain, 1920-1939". Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36016.
Texto completo da fonteSharples, Colin M. "Large- and small-scale factors influencing the population ecology of the European rabbit, Oryctolagus cuniculus L., in southern Spain". Thesis, University of East Anglia, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309906.
Texto completo da fonteVedernikov, Ivan. "Seismic analysis of the roofing structural system of Adana stadium in Adana, Turkey". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.
Encontre o texto completo da fonteGómez, María Teresa. "El largo viaje/The long journey, the cultural politics of the Communist Party of Spain, 1920-1939". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ55335.pdf.
Texto completo da fonteBories, Serge. "Conception et analyse des performances d'antennes pour les communications ultra large bande". Phd thesis, Paris 11, 2006. http://pastel.archives-ouvertes.fr/pastel-00002430.
Texto completo da fonteAnsari, Umair Azeem, e Syed Umair Ali. "Application of LEAN and BPR principles for Software Process Improvement (SPI) : A case study of a large software development organization". Thesis, Blekinge Tekniska Högskola, Institutionen för industriell ekonomi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-6085.
Texto completo da fonte+45 40968458
Perisse, Frédéric. "ETUDE ET ANALYSE DES MODES DE DEFAILLANCES DES CONDENSATEURS ELECTROLYTIQUES A L'ALUMINIUM ET DES THYRISTORS, APPLIQUEES AU SYSTEME DE PROTECTION DU LHC (LARGE HADRON COLLIDER)". Phd thesis, Université Claude Bernard - Lyon I, 2003. http://tel.archives-ouvertes.fr/tel-00268354.
Texto completo da fonteSimon, Loïc. "Procedural reconstruction of buildings : towards large scale automatic 3D modeling of urban environments". Phd thesis, Ecole Centrale Paris, 2011. http://tel.archives-ouvertes.fr/tel-00637638.
Texto completo da fonteBray, Matthew Robert. "The power of a single large shareholder in iberian firms: friend or foe?" reponame:Repositório Institucional do FGV, 2017. http://hdl.handle.net/10438/18022.
Texto completo da fonteRejected by Josineide da Silva Santos Locatelli (josineide.locatelli@fgv.br), reason: Dear Matthew, It's necessary correct some things in your thesis, please, do it and post again: • Withdraw the numbers of the pages before the introduction, but they need to be considered, example: if your thesis has 9 pages before the introduction, It must to starts with the page 10 there; • All the numbers of the pages must to be on the right superior side of the page; • On the page 4, in “data da aprovação” you need to put your presentation date: 02/02/2017; on 2017-03-06T11:57:14Z (GMT)
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Agency costs as a result of the separation of ownership and control within a firm can be a hurdle to the performance and profitability. It has been suggested that these costs can be reduced by the presence of a single large shareholder monitoring management and their decisions. On the contrary it has also been argued that a large shareholder negatively affects firm performance by deriving personal benefits from the firm and making suboptimal decisions. This research aims to investigate the relationship between the profitability of a firm and the level to which the shares of that firm are concentrated into a single shareholder. A random effects GLS panel regression is used to determine the effect of a large shareholder being present in Spanish and Portuguese firms by studying firms listed on these bourses over the period 2005 – 2014. The results show that a large shareholder has a negative influence in the Portuguese market, and no statistically significant effect in the Spanish market
Os custos de agência que resultam essencialmente da separação de poder e controlo de uma empresa, podem contribuir negativamente para a performance e rentabilidade desta. A literatura existente sugere que estes custos podem ser minimizados pela presença de um único grande accionista tendo em conta que pode monitorizar mais de perto os seus gestores e respectivas acções e decisões. Por outro lado, existem vários argumentos em estudos passados que defendem que um grande accionista pode afectar negativamente a performance de uma empresa, privilegiando a sua utilidade em detrimento de decisões que beneficiem a sociedade que controla. Este estudo tem por isso como objectivo investigar a relação entre a rentabilidade, lucro de uma empresa e proporção de acções que está concentrada num único accionista. Uma regressão de efeitos aleatórios de dados painel GLS é usada então para determinar o efeito da presença de grandes accionistas em empresas portuguesas e espanholas, listadas em bolsa no período 2005- 2014. Os resultados mostram que a presença de grandes accionistas tem um impacto negativo no mercado português, ao passo que não existe qualquer evidência significativa no caso espanhol.
Pichatwatana, Kittitach. "Weather responsive internal roof shading systems for existing long-span glazed roof over large naturally ventilated and air-conditioned pedestrian concourses in the tropics". Thesis, Heriot-Watt University, 2016. http://hdl.handle.net/10399/3113.
Texto completo da fonteFang, Le. "Applying the Kolmogorov equation to the problem of subgrid modeling for Large-Eddy Simulation of turbulence". Phd thesis, Ecole Centrale de Lyon, 2009. http://tel.archives-ouvertes.fr/tel-00446447.
Texto completo da fonteFedala, Djaafer. "Modélisation du bruit à large bande rayonné par un profil isolé : application aux turbomachines". Phd thesis, Paris, ENSAM, 2007. http://pastel.archives-ouvertes.fr/pastel-00003209.
Texto completo da fonteHurault, Jérémy. "Métrologie instationnaire embarquée pour la modélisation du bruit à large bande dans les turbomachines". Phd thesis, Paris, ENSAM, 2010. http://pastel.archives-ouvertes.fr/pastel-00005984.
Texto completo da fonteLange, Florian [Verfasser], Holger [Akademischer Betreuer] Fehske, Holger [Gutachter] Fehske, Eric [Gutachter] Jeckelmann e Fabian [Gutachter] Heidrich-Meisner. "Density-matrix renormalization-group studies of spin, boson and fermion systems with symmetry-protected topological phases / Florian Lange ; Gutachter: Holger Fehske, Eric Jeckelmann, Fabian Heidrich-Meisner ; Betreuer: Holger Fehske". Greifswald : Universität Greifswald, 2019. http://d-nb.info/1199537756/34.
Texto completo da fonteLange, Florian [Verfasser], Holger [Akademischer Betreuer] Fehske, Holger Gutachter] Fehske, Eric [Gutachter] Jeckelmann e Fabian [Gutachter] [Heidrich-Meisner. "Density-matrix renormalization-group studies of spin, boson and fermion systems with symmetry-protected topological phases / Florian Lange ; Gutachter: Holger Fehske, Eric Jeckelmann, Fabian Heidrich-Meisner ; Betreuer: Holger Fehske". Greifswald : Universität Greifswald, 2019. http://nbn-resolving.de/urn:nbn:de:gbv:9-opus-33484.
Texto completo da fonteLiang, Chenghua. "Caractérisations électriques de polymères conducteurs intrinsèques Polyaniline / Polyuréthane dans une large gamme de fréquence (DC à 20 GHz)". Phd thesis, Université du Littoral Côte d'Opale, 2010. http://tel.archives-ouvertes.fr/tel-00596089.
Texto completo da fonteSantos, Luciano Barbosa dos. "Contribuições ao estudo das cúpulas metálicas". Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-07112006-112533/.
Texto completo da fonteIn a general way, this work deals with structural systems usually adopted in the project of metallic domes. Emphasis was given to a derived arrangement derived of the Schwedler system, recently used in projects developed the state of São Paulo. The work can be divided in two parts, the first one is about the connections that compose the structural system studied, and second one treats the influence of those connections in the structure behavior and the influence in the brace configuration. The connections were studied under two different aspects, that were: a) revision and improvement of the design criteria adopted in some connections, and b) proposition of models for the momentrotation description for double plate connections of web. The influence of the brace type and of the rigidity of the connections were investigated by means of the effect in the vertical displacements and in the distribution of internal efforts of the structure. So, two commercial softwares were used, and the results were compared.