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Dissertations / Theses on the topic 'Electron probe analysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Koo, Bon Jun. "The Development and Analysis of Model Systems to Probe Proton-Coupled Electron Transfer in Ribonucleotide Reductase Ia of E. Coli." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:33493539.

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Proton-coupled electron transfer (PCET) combines proton transfer with electron transfer to bypass high-energy intermediates. The ribonucleotide reductase (RNR) family of enzymes catalyzes the conversion of ribonucleotides to deoxynucleotides using amino acid radicals. The enzyme contains an efficient PCET pathway that transfers an electron and proton over a 35 Å distance across two subunits, the longest PCET pathway known in biology. The enzyme func-tions with very high fidelity, performing >105 turnovers before radical loss. This thesis explores PCET in model systems to understand the radic

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2

Kenyon, Michael. "The effect of chromium on the evolution of dispersoids in Al-Mg-Si alloys." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/the-effect-of-chromium-on-the-evolution-of-dispersoids-in-almgsi-alloys(d1494e0d-83bb-4e98-9dea-2fda6d858ff0).html.

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Aluminium is increasingly being used in the automotive industry to reduce the weight of vehicles. It is the additions of transition elements such as Mn and Cr that can be picked up during recycling, that can form dispersoid particles during homogenisation. Dispersoids play a significant role in the recrystallization and texture development for wrought Al-Mg-Si alloys by inhibiting grain boundary motion. It is therefore important to understand the precipitation kinetics of such particles. The Mn+Cr dispersoid phases are currently thought to nucleate on β'-Mg1.8Si particles via an intermediate s

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3

Hatani, Takeshi. "Nano-structural Analysis of Engrafted Human Induced Pluripotent Stem Cell-derived Cardiomyocytes in Mouse Hearts Using a Genetic-probe APEX2." Kyoto University, 2019. http://hdl.handle.net/2433/236616.

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4

Galiano, Kevin. "Scanning Probe Microscopy Measurements and Simulations of Traps and Schottky Barrier Heights of Gallium Nitride and Gallium Oxide." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1576715425331868.

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5

Luchese, Cláudia Leites. "Avaliação da influência da temperatura e da concentração da solução de sacarose na desidratação osmótica de Physalis (Physalis peruviana L.)." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/96491.

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A Physalis peruviana Linnaeus é uma fruta considerada exótica que possui elevado custo de comercialização, principalmente nos mercados internacionais. Suas propriedades nutracêuticas e o aumento da sua produtividade no Estado do Rio Grande do Sul, associados à sua elevada perecibilidade definiram o objetivo deste trabalho: estudar o processo de transferência de massa durante a desidratação osmótica de physalis. Diversos trabalhos que avaliam as propriedades dos compostos bioativos da physalis através de ensaios in vitro e in vivo estão disponíveis na literatura, no entanto, há uma carência de

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6

White, R. P. "Spectroscopic probes for electron transfer phenomena." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382862.

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7

Caraher, Sally Kate 1974. "Clustering and precipitation processes in age-hardened Al-Zn-Mg-(Ag, Cu) alloys." Monash University, School of Physics and Materials Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/7803.

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8

Boyce, Geraldine. "Electron crystallography of organic pigments." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340747.

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9

Mutas, Sergej [Verfasser]. "Analysis of high-k materials with Local Electrode Atom Probe / Sergej Mutas." Aachen : Shaker, 2012. http://d-nb.info/1066198276/34.

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10

Remmert, Jessica Lynn. "Nano Thermal and Contact Potential Analysis with Heated Probe Tips." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14585.

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This work describes two closed-loop atomic force microscopy methods that utilize the heated silicon probe to interrogate surfaces. The first method identifies the softening temperatures of a selected polymer and organic substrate as a function of contact force and surface hardness. Motivation partly stems from nanosampling, which requires knowledge of phase-specific transitions to identify and extract mass from multicomponent systems for chemical analysis. In the second method, the cantilever is implemented as a Kelvin probe to study the effect of temperature on the measured contact potenti

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11

Hua, Yueming. "Materials and methods for nanolithography using scanning thermal cantilever probes." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22536.

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Thesis (Ph. D.)--Chemical and Biomolecular Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Henderson, Clifford; Committee Member: Hess, Dennis; Committee Member: King, William; Committee Member: Lu, Hang; Committee Member: Tolbert, Laren.

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12

Gasper, Susan M. "Spin selective reactivity of arylcations ; Part II: Anthraquinone oligonucleotide conjugates as probes of electron transfer in DNA." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/30533.

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13

Capria, Ennio. "Electrostatic manipulation of piezoelectric fibres using a sharp probe electrode in a dielectric liquid : analysis of the electrohydrodynamic phenomena." Thesis, Cranfield University, 2007. http://dspace.lib.cranfield.ac.uk/handle/1826/1799.

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Micro-assembly techniques have been identified as a major technology ‘pillar’ that will underpin further advancements in integrated micro-and nano-systems. In practice, there is a generic requirement for component parts that are often fragile, or that have been prepared by mutually incompatible processes, to be brought together to make a complete working system. This thesis discusses an electrostatic positioning technique for micro-scale elements that could form the basis of an industrial process. A highly non-uniform field generated between a needle-like upper electrode and a bottom flat elec

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14

Sharma, Varun. "Evaluation of novel metalorganic precursors for atomic layer deposition of Nickel-based thin films." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-166627.

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Nickel und Nickel (II) -oxid werden in großem Umfang in fortgeschrittenen elektronischen Geräten verwendet. In der Mikroelektronik-Industrie wird Nickel verwendet werden, um Nickelsilizid bilden. Die Nickelmono Silizid (NiSi) wurde als ausgezeichnetes Material für Source-Drain-Kontaktanwendungen unter 45 nm-CMOS-Technologie entwickelt. Im Vergleich zu anderen Siliziden für die Kontaktanwendungen verwendet wird NiSi wegen seines niedrigen spezifischen Widerstand, niedrigen Kontaktwiderstand, relativ niedrigen Bildungstemperatur und niedrigem Siliziumverbrauchs bevorzugt. Nickel in Nickelbasis-A

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15

Sobola, Dinara. "Nedestruktivní lokální diagnostika optoelektronických součástek." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-233678.

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Chceme-li využít nové materiály pro nová optoelektronická zařízení, potřebujeme hlouběji nahlédnout do jejich struktury. K tomu, abychom toho dosáhli, je však nutný vývoj a aplikace přesnějších diagnostických metod. Předložená disertační práce, jako můj příspěvek k částečnému dosažení tohoto cíle, se zabývá metodami lokální diagnostiky povrchu optoelektronických zařízení a jejich materiálů, většinou za využití nedestruktivních mechanických, elektrických a optických technik. Tyto techniky umožňují jednak pochopit podstatu a jednak zlepšit celkovou účinnost a spolehlivost optoelektronických stru

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16

Goad, Kenneth G. "Integration of an X-Y prober with CAD driven database and test generation software for the testing of printed circuit boards." Thesis, Virginia Tech, 1987. http://hdl.handle.net/10919/45664.

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<p>Guided probe testing of printed circuit boards is a technique that has been well developed by automatic test equipment manufacturers to pinpoint faults. Though the guided probe technique of testing printed circuit boards is a process capable of providing high diagnostic resolution, the technique is inefficient when it is performed manually. The throughput of board testing is bottlenecked because of the time required for an operator to manually move a probe to a specific location on the board under test in order to measure a stimulated response. Integration of a CAD driven X-Y prober i

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17

Paradis, Mathieu. "Évaluation et identification des inclusions dans les alliages de magnésium AM50A et AZ91D." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 2003. http://theses.uqac.ca.

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18

Auclair, Gilles. "Processus de métallogénèse dans les amas sulfurés océaniques : Contribution à l'étude du comportement des éléments chalcophiles dans les processus hydrothermaux." Brest, 1988. http://www.theses.fr/1988BRES2001.

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Etude des parametres d'analyse de se, as, co, cd et ag dans les sulfures cpy, py, sp, iss, po conduisant a une amelioration du rapport signal-bruit et des precisions d'analyse. Analyse des sulfures par fluorescence x suivie d'analyse a la microsonde permettant de comprendre le comportement des elements trace au cours du processus de maturation d'un depot hydrothermal. On montre que les parageneses rencontrees different selon la situation du depot, la temperature. L'etude des conditions physico-chimiques de depot montre que les fluides peuvent subir une evolution et un remelange en toutes propo

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19

Dudoignon, Patrick. "Les altérations hydrothermales des roches volcaniques de l'atoll de Mururoa (Polynésie française)." Poitiers, 1988. http://www.theses.fr/1988POIT2007.

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Les alterations hydrothermales qui affectent les roches du soubassement volcanique de l'atoll de mururoa se situent a 3 niveaux: les alterations a saponite mg dans les coulees sous-marines et aeriennes, les alterations localisees dans les zones d'alimentation. Ces dernieres sont classees en 4 groupes suivant la temperature et la paragenese des mineraux d'alteration

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20

Tsiareshka, Siarhei G. "Vibrating CPD Chemical Degradation Oil Sensor." Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11636.

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Oil analysis is a broad field comprised of hundreds of individual tests that provide meaningful benefit by assessing one or more properties of lubricants or machines. Many tests are performed on new types of oil during research and development. The lubricants chemical, physical, or lubricating properties are validated for quality control purposes and product performance classification. Much of the research in this area is devoted to the online oil degradation systems which allow getting a prompt response about the condition of lubricant. This thesis investigates the concept for monitoring oi

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21

Bonef, Bastien. "Analyses d'hétérostructures de semiconducteurs II-VI par sonde atomique tomographique et microscopie électronique en transmission." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAY083/document.

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Ce travail de thèse aborde la problématique de caractérisation structurale à l'échelle atomique d'hétérostructures à base de semiconducteurs II-VI. La sonde atomique tomographique et la microscopie électronique en transmission sont utilisées de façon couplées pour obtenir la structure et la composition des interfaces dans les super-réseaux de ZnTe/CdSe afin d'améliorer leurs processus de croissance. La structure et la distribution des atomes de Cr dans le semiconducteur magnétique (Cd,Cr)Te sont aussi présentées.La sonde atomique tomographique permet d'obtenir des données quantitatives à parti

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22

Wilkop, Thomas. "Thin film calixresorcinarene membranes for chemical sensing." Thesis, Sheffield Hallam University, 2001. http://shura.shu.ac.uk/20538/.

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Novel applications for calix[4]recorcinarene (C[4]RA) sensing membranes have been investigated. A comprehensive deposition study was carried out, encompassing casting, spin coating and Langmuir Blodgett (LB) deposition. The spin coating thickness depended on the angular velocity w, following the description of d = c.wx with coefficients of x - 0.44 and - 0.48 for concentrations of 1 mg/ml and 2mg/ml respectively. The analysis of the LB deposited films established a thickness of 0.95 nm for a monolayer. Furthermore the C[4]RA, was successfully employed as a deposition matrix for a non surface a

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23

Baigl, Damien. "Etude expérimentale de polyélectrolytes hydrophobes modèles." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2003. http://tel.archives-ouvertes.fr/tel-00003620.

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Un polyélectrolyte hydrophobe est un polymère portant des charges électriques lorsqu'il est en solution aqueuse et dont l'eau est un mauvais solvant pour le squelette. Cette thèse a pour objectif d'établir l'influence de la nature hydrophobe du squelette sur les propriétés physiques des polyélectrolytes. Pour cela, nous avons tout d'abord synthétisé une série de poly(styrène-\emph(co)-styrènesulfonate de sodium), appelés PSS, possédant des taux de charge $f$ variant entre 30\% et 100\% et comportant entre $N=120$ et $N=2520$ monomères par chaîne. Ces PSS sont caractérisés précisément et peuven

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24

Beaux, Jean-François. "Le complexe volcano-plutonique de la presqu'île de la société de géographie (Iles Kerguelen) : structure et pétrologie." Paris 6, 1986. http://www.theses.fr/1986PA066198.

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Le pluton central permet de bien cerner l'évolution et la mise en place de la série alcaline sous-saturée en silice. Ses caractères géochimiques et minéralogiques conduisent à l'expliquer par la cristallisation fractionnée d'un magma fortement alcalin. Des contraintes de fractionnement conduisent à proposer un modèle de deux chambres magmatiques superposées dont le style de mise en place est clairement lie à la différenciation et fait appel aux deux mécanismes reconnus : la subsidence souterraine passive qui guide les intrusions les moins différenciées et le mode en force qui est l'expression

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25

Schmitt, Jean-Michel. "Albitisation triasique, hydrothermalisme jurassique et alteration supergene recente. Metallogenie des gisements uraniferes du rouergue." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13173.

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Les concentrations uraniferes qui font l'objet de ce travail sont des gites multifissures, de paragenese simple, quasi monometallique, ou l'uranium s'exprime sous forme d'oxydes. Elles se localisent aussi bien dans le socle que dans les sediments permo-carboniferes et recoupent meme localement le contact socle-couverture. Dans les deux principaux secteurs mineralises, bertholene et brousse-broquies sont decrites respectivement l'albitisation d'un socle orthogneissique et celle d'une serie permo-houillere. La repartition precise des zones albitisees montre qu'elles constituent en fait les racin

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26

Desmet, Alain. "Ophiolites et séries basaltiques crétacées des régions caraïbes et nordandines : bassins marginaux, dorsales ou plateaux océaniques ?" Nancy 1, 1994. http://www.theses.fr/1994NAN10313.

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Les régions caraïbes et nordandines comportent, au crétacé, des séries magmatiques basiques, volcaniques ou ophiolitiques. L'étude petrologique analytique (majeurs, traces, terres rares, microsonde) de quelques séries du Costa Rica, de Colombie et d'Équateur, a permis leur identification magmatique et dynamique. La comparaison des laves à certaines séries volcaniques océaniques actuelles a conduit à une réinterprétation magmatique et géodynamique globale. Au Costa Rica, la péninsule de Santa Elena est formée d'une large nappe ophiolitique tholeiitique avec péridotites, cumulats gabbroiques et

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27

Thomas, Colin. "EMPA and EDXA analysis of slag from the multicomponent site of Pirque Alto, Bolivia /." 2008. http://minds.wisconsin.edu/handle/1793/37564.

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28

Anderson, Gissela Bernal. "Comparative analysis of quantitative probing measurements by use of an electronic pressure sensitive probe and a manual probe a thesis submitted in partial fulfillment ... in periodontics ... /." 1986. http://books.google.com/books?id=sZQ9AAAAMAAJ.

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29

Yu-LunCheng and 鄭毓倫. "Improvement of dual-electrode scanning probe and its applications on interfacial electrochemical analysis of Li-ion battery materials." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/wj8fj7.

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30

Yi-Cong, Iv, and 呂易璁. "Analysis of Coupling Calibration for Electric Field Probe Applied to SAR Measurement Using a Adjustable Open-ended Waveguide." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/86461999763671424741.

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碩士<br>大葉大學<br>電信工程學系碩士班<br>94<br>In the recent years, （Specific Absorption Rate）SAR has become an important issue concerning health hazard due to the rising usage of wireless communication technologies. The measurement system mostly used the E-Probe to measure the SAR values. However the E-Probe offer extended usage will gradually degrade in term of precision and accuracy. Since, to date, there exists no Laboratories in this country to perform the calibration, it would be of interest to design such a calibration scheme. The implementation of the local calibration will not only save time but al

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31

Chan, Ho-yin. "Polycrystalline CVD diamond probes for use in in vivo and in vitro neural studies." Diss., 2008. http://proquest.umi.com/pqdweb?did=1680063551&sid=1&Fmt=2&clientId=3552&RQT=309&VName=PQD.

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Thesis (Ph. D.)--Michigan State University. Electrical Engineering, 2008.<br>Title from PDF t.p. (Proquest, viewed on Aug. 17, 2009) Includes bibliographical references (p. 120-135). Also issued in print.

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32

Potrivitu, George-Cristian. "Low–voltage External Discharge Plasma Thruster and Hollow Cathodes Plasma Plume Diagnostics Utilising Electrostatic Probes and Retarding Potential Analyser." Thesis, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-59796.

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The present thesis is the result of a research period at the Institute of Space and Astronautical Science of the Japanese Aerospace Exploration Agency, ISAS/JAXA within Funaki Laboratory of the Department of Space Flight Systems that followed the path of plume plasma diagnostics for space electric propulsion drives. During the experimental studies two high-current hollow cathodes and an innovative prototype of a low-voltage fully external discharge plasma thruster (XPT) had their plasma plumes diagnosed using electrostatic probes and retarding potential analyser (RPA). A Hall thruster and holl

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