Relevant bibliographies by topics / Electrons dynamic

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  1. Dissertations / Theses

Academic literature on the topic 'Electrons dynamic'

Author: Grafiati
Published: 1 April 2023

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Dissertations / Theses on the topic "Electrons dynamic"

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Licsandru, Erol-Dan. "Dynamic systems for the translocation of water, ions or electrons." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS213/document.

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L'objectif de ce travail concerne le transport à travers des membranes lipidiques de l'eau et d' ions par des canaux artificiels auto-assembles, et le design des nano-contacts organiques auto-assembles pour des applications macro échelle : biocathodes. La première partie est concentre sur le transport de l'eau et d'ions à travers des membranes bicouches. L'objectif est la réplication de la fonction des protéines naturelles, utilisant des composées ureido-heterocycle. L'influence de la composition des espèces est évaluée par rapport à leur structure supramoléculaire et la liaison entre elle et
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Iyer, Venkatraman 1967. "Discretized path integral molecular dynamic simulations with quantum exchange of two electrons in molten potassium chloride." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278142.

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This study presents the use of Feynman's Quantum Path Integral (QPI) approach in the Molecular Dynamic Simulation of two electrons in molten KCl. In this research, we have successfully implemented an original technique to tackle the questions of spin dependent quantum exchange phenomenon between two electrons. It was found that two electrons with antiparallel spins form a stable bipolaronic complex and those with parallel spins repel each other and form two dissociated or singlet states. Calculations of the average energies compare well with previous computational findings by Selloni et al. wh
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CORNIER-QUIQUANDON, MARIANNNE. "Theorie dynamique de la diffraction des electrons rapides par les cristaux et quasicristaux." Paris 6, 1988. http://www.theses.fr/1988PA066167.

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Description de la diffraction des electrons par les solides ordonnes a longue distance. Le formalisme necessite d'exprimer l'hamiltonien de diffraction sur une base discrete d'ondes planes. Le spectre des etats propres de l'hamiltonien de diffraction est dense non uniforme. Les calculs dynamiques peuvent donc etre effectues en echantillonant le spectre par valeurs discretes. Application de la methode a la simulation des images de microscopie electronique en haute resolution sur une phase icosaedrique en utilisant la description 6d de la structure. Interpretation des resultats experimentaux par
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Lanier, Steven t. "Dynamic Screening via Intense Laser Radiation and Its Effects on Bulk and Surface Plasma Dispersion Relations." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1011758/.

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Recent experimentation with excitation of surface plasmons on a gold film in the Kretschmann configuration have shown what appears to be a superconductive effect. Researchers claimed to see the existence of electron pairing during scattering as well as magnetic field repulsion while twisting the polarization of the laser. In an attempt to explain this, they pointed to a combination of electron-electron scattering in external fields as well as dynamic screening via intense laser radiation. This paper expands upon the latter, taking a look at the properties of a dynamic polarization function,
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Schäfer-Bung, Boris, and Mathias Nest. "Correlated dynamics of electrons with reduced two-electron density matrices." Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2010/4177/.

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We present an approach to the correlated dynamics of many-electron systems. We show, that the twoelectron reduced density matrix (2RDM) can provide a suitable description of the real time evolution of a system. To achieve this, the hierarchy of equations of motion must be truncated in a practical way. Also, the computational effort, given that the 2RDM is represented by products of two-electron determinants, is discussed, and numerical model calculations are presented.
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Cao, Hui. "Dynamic Effects on Electron Transport in Molecular Electronic Devices." Doctoral thesis, KTH, Teoretisk kemi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12676.

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HTML clipboardIn this thesis, dynamic effects on electron transport in molecular electronic devices are presented. Special attention is paid to the dynamics of atomic motions of bridged molecules, thermal motions of surrounding solvents, and many-body electron correlations in molecular junctions. In the framework of single-body Green’s function, the effect of nuclear motions on electron transport in molecular junctions is introduced on the basis of Born-Oppenheimer approximation. Contributions to electron transport from electron-vibration coupling are investigated from the second deriva
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Blidberg, Andreas. "Iron Based Materials for Positive Electrodes in Li-ion Batteries : Electrode Dynamics, Electronic Changes, Structural Transformations." Doctoral thesis, Uppsala universitet, Strukturkemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-317014.

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Li-ion battery technology is currently the most efficient form of electrochemical energy storage. The commercialization of Li-ion batteries in the early 1990’s revolutionized the portable electronics market, but further improvements are necessary for applications in electric vehicles and load levelling of the electric grid. In this thesis, three new iron based electrode materials for positive electrodes in Li-ion batteries were investigated. Utilizing the redox activity of iron is beneficial over other transition metals due to its abundance in the Earth’s crust. The condensed phosphate Li2FeP2
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Grumbling, Emily Rose. "Electronic Structure, Intermolecular Interactions and Electron Emission Dynamics via Anion Photoelectron Imaging." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/195933.

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This dissertation explores the use of anion photoelectron imaging to interrogate electronic dynamics in small chemical systems with an emphasis on photoelectron angular distributions. Experimental ion generation, mass selection, laser photodetachment and photoelectron imaging were performed in a negative-ion photoelectron imaging spectrometer described in detail. Results for photodetachment from the simplest anion, H⁻, are used to illustrate fundamental principles of quantum mechanics and provide basic insight into the physics behind photoelectron imaging from a pedagogical perspective. This p
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Okhrimenko, Albert N. "ULTRAFAST EXCITED STATE RELAXATION DYNAMICS OF ELECTRON DEFICIENT PORPHYRINS: CONFORMATIONAL AND ELECTRONIC FACTORS." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1126888140.

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Biswas, Somnath. "Watching Electrons Move in Metal Oxide Catalysts : Probing Ultrafast Electron Dynamics by Femtosecond Extreme Ultraviolet Reflection-Absorption Spectroscopy." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1586375150350782.

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