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Dissertations / Theses on the topic 'Electronic paramagnetic resonance'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Brenneman, Keith Richard. "Heteroatom-containing organic electronic oligomers and polymers : electron paramagnetic resonance studies /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu148820315882799.

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2

Powley, Nicholas R. (Nicholas Ransom) 1982. "A device for testing the electronic and mechanical properties of conducting polymers with electron paramagnetic resonance spectroscopy." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32776.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.<br>Includes bibliographical references (leaf 35).<br>Conducting polymers have the potential to serve the technical and commercial communities with novel actuators, sensors, and biomimetic devices. The conjugated structures of these polymers and the addition of dopants enable conduction. [1] One current goal in the conducting polymer field is to observe and understand the events by which these polymers carryout their active mechanical functions (contraction and expansion) upon the application of a poten

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3

Lee, Yuk Ki. "The electronic structure of the Tyr-Cys· free radical in galactose oxidase determined by EPR spectroscopy." Full text open access at:, 2007. http://content.ohsu.edu/u?/etd,252.

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4

Rouf, S. A. (Syed Awais). "Paramagnetic NMR chemical shift theory:combined ab initio/density-functional theory method." Doctoral thesis, University of Oulu, 2017. http://urn.fi/urn:isbn:9789526216850.

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Abstract In this thesis, the classic Kurland-McGarvey theory for the nuclear magnetic resonance (NMR) chemical shift is presented in a modern framework for paramagnetic systems containing one or more unpaired electrons. First-principles computations are carried out for the NMR shielding tensors in paramagnetic transition-metal complexes. A combined ab initio/density-functional theory (DFT) approach is applied to obtain the necessary electron paramagnetic resonance (EPR) property tensors, i.e., the g-tensor, zero-field splitting tensor (D) and hyperfine coupling tensors (A). In DFT, both the ge

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5

Martins, Mayler [UNESP]. "Sensores sólidos para detecção de óxido nítrico baseados em cucurbit[6]uril e em siloxano-poli(oxipropileno)." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/106653.

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Made available in DSpace on 2014-06-11T19:35:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-06-30Bitstream added on 2014-06-13T18:47:17Z : No. of bitstreams: 1 martins_m_dr_bauru.pdf: 1151636 bytes, checksum: 37b25c1a259654f1cc700b01d884bb8d (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O óxido nítrico (NO) é um radical livre conhecido por desempenhar importantes funções fisiológicas, sendo associado, entre outros processos, ao fator de relaxamento da musculatura lisa vascular, importante para a regulagem da pressão sanguínea. Para a determinação dos me

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6

Pingret, de Sousa Daniella. "Application des ultrasons aux procédés de transformation des produits agroalimentaires." Thesis, Avignon, 2012. http://www.theses.fr/2012AVIG0645/document.

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L’utilisation des ultrasons dans l’industrie agro-alimentaire présente de nombreux avantages, tels que l’augmentation de la productivité et la diminution des coûts et des impacts environnementaux. Dans la première partie de ce travail, une brève introduction sur la théorie des ultrasons et ses applications en agro-alimentaire et l’utilisation de ces derniers pour l’extraction des polyphénols de marc de pomme en solution aqueuse seront présentés. Cette étude a été optimisée et présente d’excellents résultats aussi bien à l’échelle du laboratoire qu’à l’échelle pilote. Ce travail a permis de met

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7

Martins, Mayler. "Sensores sólidos para detecção de óxido nítrico baseados em cucurbit[6]uril e em siloxano-poli(oxipropileno) /." Bauru : [s.n.], 2011. http://hdl.handle.net/11449/106653.

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Orientador: Carlos Frederico de Oliveira Graeff<br>Banca: Marcelo Mulato<br>Banca: José Humberto Dias da Silva<br>Banca: Carlos José Leopoldo Constantino<br>Banca: Alvaro Antonio Alencar de Queiroz<br>O programa de Pós graduação em Ciência e Tecnologia de Materiais, PosMat, tem carater institucional e integra as atividades de pesquisa em materiais de diversos campi da UNESP<br>Resumo: O óxido nítrico (NO) é um radical livre conhecido por desempenhar importantes funções fisiológicas, sendo associado, entre outros processos, ao fator de relaxamento da musculatura lisa vascular, importante para a

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8

Sabaté, Fornons Ferran. "Estudio, síntesis y caracterización de óxidos de manganeso de tipo criptomelana y aplicaciones catalíticas." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/167054.

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[ES] La presente tesis doctoral se sitúa en el marco de la síntesis de óxidos metálicos con aplicaciones en Catálisis Heterogénea para la obtención de productos de Química Fina de alto interés industrial. En este caso concreto se han estudiado los óxidos de manganeso de tipo criptomelana K-OMS2, los cuales resultan muy útiles para la fabricación de dispositivos electrónicos y como catalizadores, debido a sus propiedades redox, a su inocuidad a nivel medioambiental y a su bajo coste. En la primera parte de este trabajo se ha estudiado la síntesis de g - valerolactona mediante la carboesterifica

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9

Шевека, Олена Ігорівна. "Електронні властивості парамагнітних центрів пов’язаних з марганцем в титанатах магнію". Master's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/41243.

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Актуальність теми: Останнім часом у люмінофорах червоного світіння домішку марганцю було запропоновано у якості більш дешевої альтернативи небезпечним рідкоземельним домішкам, що зазвичай використовуються у цих люмінофорах. Але, на жаль, фторидні сполуки, необхідні як сполучна речовина для марганцю, призводять до забруднення навколишнього середовища, оскільки в процесі виготовлення використовується концентрована флуоридна кислота. В свою чергу титанати магнію з центрами люмінесценції, пов’язаними з марганцем, є екологічно-чистими люмінофорами червоного світіння, що не містять рідкоземе

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10

Чередниченко, К. С. "Застосування ЯМР І ЕПР в медицині". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/66953.

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11

Junior, Ulysses Borelli Thomaz. "Desenvolvimento de um sistema de aquisição, análise e controle para experimentos em ressonância paramagnética eletrônica." Universidade de São Paulo, 1988. http://www.teses.usp.br/teses/disponiveis/54/54132/tde-19052014-112927/.

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Este trabalho descreve o projeto e o desenvolvimento de um sistema para controle, aquisição, processamento e análise de experimentos de Ressonância Paramagnética Eletrônica, baseado em microprocessador. Trata-se da construção de um equipamento dedicado e otimizado, para a realização dessas tarefas. Além de recursos convencionais, como o Cálculo da. Média Ponto-a-Ponto _de um sinal pela aquisição de múltiplos espectros, o instrumento desenvolvido possui várias características em relação á manipulação e visualização de espectros, tais como: correção da linha de base, soma e subtração de espectro

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12

Börger-Enkisch, Birgit. "Optically detected electron paramagnetic resonance of metalloproteins." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963108220.

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13

Carlsson, Patrick. "Electron paramagnetic resonance study of defects in SiC." Doctoral thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-56586.

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Silicon carbide (SiC) is a wide bandgap semiconductor (energy gap of 3.26 eV and 3.03 eV for 4Hand 6H-SiC, respectively). With outstanding physical and electronic properties, SiC is a promising material for high-power, high-frequency and high-temperature applications. The electronic properties of a semiconductor are to a large extent determined by point defects in the crystal. As known from other semiconductors, defect control is crucially important for the successful device applications. Point defects can be impurities, such as the shallow nitrogen (N) donor or boron acceptor (the residual n-

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14

Spitzbarth, Martin [Verfasser]. "Time-resolved electron paramagnetic resonance imaging / Martin Spitzbarth." Konstanz : KOPS Universität Konstanz, 2018. http://d-nb.info/1205257500/34.

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15

Dorin, Catalina I. "Electron paramagnetic resonance and electron nuclear double resonance study of Nb⁵⁺ hole center in CdWO₄." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=745.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains ix, 72 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 40).

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16

Langhanki, Bertram. "Electron paramagnetic resonance of process induced defects in silicon." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=96273621X.

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17

Hilger, Daniel. "Electron paramagnetic resonance spectroscopic analyses of membrane transport proteins." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-127330.

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18

Schwab, David Earl. "Electron paramagnetic resonance investigations of adducts of human hemoglobin." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/schwab/SchwabD0510.pdf.

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Hemoglobin transports oxygen to the tissues of the body. The delivery of oxygen to tissues by hemoglobin is dependent on blood flow, which is determined by vessel tension regulated by local oxygen gradients. Dilation of the blood vessels in the microcirculation of tissues under high metabolic demand is induced by the endothelium-derived relaxation factor, nitric oxide, in a process known as hypoxic vasodilation. Although the means of nitric oxide bioactivity preservation and transportation in the blood are disputed, it is clear that S-nitrosohemoglobin, a nitrosylated variant of hemoglobin, pl

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19

Tsang, Eric P. K. "Aspects of quantitive analysis by electron paramagnetic resonance spectrometry." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334684.

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20

Amorelli, Angelo. "An electron paramagnetic resonance study of titanium dioxide pigments." Thesis, Cardiff University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238163.

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21

Bawn, Matthew. "Myoglobin and nitrite : an electron paramagnetic resonance led investigation." Thesis, University of East Anglia, 2012. https://ueaeprints.uea.ac.uk/39024/.

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22

Golub, Frank. "An Estimation Technique for Spin Echo Electron Paramagnetic Resonance." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1372095953.

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23

Fehr, Matthias [Verfasser]. "Paramagnetic defects in hydrogenated amorphous silicon : an advanced electron paramagnetic resonance study / Matthias Fehr." Berlin : Freie Universität Berlin, 2011. http://d-nb.info/1025510844/34.

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24

Abdullin, Dinar [Verfasser]. "Localization of Paramagnetic Metal Ions in Biomolecules ny means of Electron Paramagnetic Resonance / Dinar Abdullin." Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/1130704629/34.

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25

Li, Xiying. "FEW ELECTRON PARAMAGNETIC RESONANCES DETECTION TECHNIQUES ON THE RUBY SURFACE." Case Western Reserve University School of Graduate Studies / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=case1121296112.

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26

Walter, Eric Dale. "Spin-Label Electron Paramagnetic Resonance Characterization of Heterogeneously Functionalized Dendrimers." Thesis, Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/walter/WalterE04.pdf.

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Dendrimers are roughly spherical macromolecular polymers that can provide a molecular framework for the attachment of various functionalities. The range of application can be vastly expanded when attached with a heterogeneous mix of functionalities tailored to meet a specific need. The effective application requires the acquisition of several new techniques. First, chemical control of the average ratio of functional groups and analytical methods to determine the ratio. Secondly, a determination of the distribution of ratios. And finally, a method whereby the spatial distribution is determined.

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27

Engström, Maria. "Quantum chemical calculations of electron paramagnetic resonance of biological radicals /." Linköping : Univ, 2001. http://www.bibl.liu.se/liupubl/disp/disp2001/tek679s.pdf.

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28

Gutschank, Jörg [Verfasser]. "Implementation of coherent Raman detected electron paramagnetic resonance / Jörg Gutschank." Dortmund : Universitätsbibliothek Technische Universität Dortmund, 2005. http://d-nb.info/1011533111/34.

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29

Walsby, Charles John. "Theoretical and experimental electron paramagnetic resonance studies of single crystals." Thesis, University of Canterbury. Chemistry, 1999. http://hdl.handle.net/10092/6104.

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This work presents X-band electron paramagnetic resonance studies of X-irradiated zircon and α-quartz single crystals at 15 K. The first of these is of the Zr3+ (α) electron centre in zircon where a doublet hyperfine splitting has been assigned unequivocally to interaction with a nearby 31P nucleus rather that 89Y as determined in earlier work. The site of the phosphorus ion has also been confidently identified. Three oxygenic-hole centres have been studied. Two of these are thought to be closely related, with one associated with yttrium and the other with an unknown ion. The third hole cent

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30

Skinner, A. R. "Electron paramagnetic resonance of some 3d ions in magnesium oxide." Thesis, Durham University, 1986. http://etheses.dur.ac.uk/6886/.

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Electron paramagnetic resonance (E.P.R.) and reflection high energy electron diffraction (RHEED) techniques have been used to study the distribution of iron, chromium and manganese in lightly doped magnesium oxide (MgO) single crystals and powders. E.P.R. single crystal spectra were recorded at room temperature for all three systems (with the dopants at various concentrations). From these spectra, which agreed with previously published data, the valency states (i.e. Fe(^3+), Cr(^3+) and Mn(^2+)) of the isolated ions and the symmetry of the sites they occupy were identified. The single crystal

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31

Bingham, Stephen John. "Magnetic circular dichroism and electron paramagnetic resonance of transition ions." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357179.

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32

Vallotto, Claudio. "Electron paramagnetic resonance techniques for pharmaceutical characterization and drug design." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/104986/.

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This thesis aims to explore the applicability of Electron Paramagnetic Resonance (EPR) spectroscopy in the pharmaceutical field. EPR is a powerful biophysical tool that allows the detection and characterisation of paramagnetic species, such as free organic radicals and metal complexes. EPR is widely used across all disciplines but to date has been much underutilised in the pharmaceutical industry. In the first part of this work, EPR techniques were applied to characterise the degradation products originating from irradiation sterilization of two common excipients, L-histidine and D-mannitol. R

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33

Bar, Galit 1970. "High-frequency time domain electron paramagnetic resonance : methods and applications." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17826.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2004.<br>Vita.<br>Includes bibliographical references.<br>There are numerous advantages to high frequency (high field) electron paramagnetic resonance (EPR) spectroscopy. Two of the most important are improved sensitivity and the improved resolution of field dependent interactions. In addition, there are many attractive features to time domain spectroscopy. Pulsed EPR allows for the design of experiments, which can specifically be used to study structure and dynamics of paramagnetic species and provide utmost resolutio

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34

Bellew, Brendan Francis. "High frequency (139.5 GHz) electron paramagnetic resonance spectroscopy of biomolecules." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38758.

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35

Som, Subhojit. "Topics in Sparse Inverse Problems and Electron Paramagnetic Resonance Imaging." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1282135281.

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36

Griffin, Mark Philip. "The computer simulation of electron paramagnetic resonance spectra employing homotopy /." [St. Lucia, Qld. : s.n.], 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16640.pdf.

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37

Booth, Ian. "Optical detection of paramagnetic and cyclotron resonance in semiconductors." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25566.

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Optical Detection of Magnetic Resonance (ODMR) has been used to observe both paramagnetic and diamagnetic resonance of photo-excited electrons and holes in GaP, ZnTe and AgBr. Paramagnetic resonance of conduction electrons in GaP has been studied and the microwave frequency and power dependence of the effect analysed. The maximum signal strength was observed to produce approximately 1% change in luminescence at 1.6 K. The g value deduced from the resonance was 2.000 ± 0.005. The resonance was homogeneously broadened giving the electron lifetime as approximately 4 nanoseconds. Paramagnetic res

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38

Trinh, Xuan Thang. "Electron Paramagnetic Resonance Studies of Point Defects in AlGaN and SiC." Doctoral thesis, Linköpings universitet, Halvledarmaterial, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-117882.

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Point defects in semiconductor materials are known to have important influence on the performance of electronic devices. For defect control, knowledge on the model of defects and their properties is required. Information on defects, such as the symmetry and the localization of spins, is essential for identification of defects and understanding their electronic structure. Such information can be obtained from Electron Paramagnetic Resonance (EPR). In many cases, the energy levels of defects can be determined from photoexcitation EPR (photo-EPR) or temperature dependence of the EPR signal. The t

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39

Harris, Emyr. "An electron paramagnetic resonance study of titanium dioxide and its photochemistry." Thesis, Cardiff University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267101.

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40

Tait, Claudia E. "Electron paramagnetic resonance studies of artificial supramolecular structures and biological systems." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:b0535d55-89aa-4d89-b210-b49caf6b857e.

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The research described in this thesis employs a variety of Electron Paramagnetic Resonance (EPR) techniques for the study of the electronic and structural properties of artificial supramolecular porphyrin systems and of protein complexes of biological relevance. The electron delocalisation in the cationic radical and photoexcited triplet states of linear and cyclic Π-conjugated multiporphyrin arrays was investigated. In the radical cations, information on the extent of delocalisation can be inferred from the measurement of hyperfine couplings, either indirectly from the continuous wave EPR

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41

Keeble, D. J. "Electron paramagnetic resonance studies of spin-labelled ethidium bromide DNA interactions." Thesis, Keele University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374684.

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42

Christensen, Melvin Keith. "Pulsed electron paramagnetic resonance of iron-sulfur clusters in photosystem I /." Connect to Digital dissertations. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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43

Tampieri, Francesco. "Defects in Carbon-based Materials studied by Electron Paramagnetic Resonance Methods." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424429.

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The study of defects in carbon-based materials is of great interest, because of their elusive nature and because these defects determine some of their fundamental electronic, optical and magnetic properties. The type of defects depends strongly on the materials structure. In ordered materials, for example, defects are due to distortions of the crystalline structure, while in amorphous materials they are related most to unsaturated bonds. In recent years, great interest has grown on graphene and graphene-like systems. The properties of these materials make them very promising for electronic an

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44

Carloni, Riccardo. "Electron paramagnetic resonance applications: from drug discovery to marine biology studies." Doctoral thesis, Urbino, 2021. http://hdl.handle.net/11576/2682203.

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45

Brunel, Albane. "Etude du mécanisme d’activation de l’oxygène par les NO-Synthases." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112290/document.

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Le monoxyde d'azote est exclusivement synthétisé chez les mammifères par une famille d’hémoprotéines, les NO-Synthases. Le cœur de l’activité des NO-Synthases est l’activation de l’oxygène c'est-à-dire l’activation de l’intermédiaire réactionnel FeIIO2. Cette étape est contrôlée par la réactivité intrinsèque du fer, par les transferts de proton et les transferts d’électron. Elle doit être parfaitement maîtrisée car elle contrôle le chemin catalytique emprunté et la nature du produit final. Comprendre l’étape d’activation de l’oxygène est essentiel à la compréhension du rôle biologique et/ou pa

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46

Watt, G. A. "New EPR imaging techniques, and applications to defects in diamond." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249157.

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47

Ahmad, Rizwan. "Data acquisition and reconstruction techniques for improved electron paramagnetic resonance (EPR) imaging." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1186602293.

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48

Trinh, Xuan Thang. "Electron Paramagnetic Resonance studies of negative-U centers in AlGaN and SiC." Licentiate thesis, Linköpings universitet, Halvledarmaterial, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-112408.

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Silicon (Si) is the most commonly used n-type dopant in AlGaN, but the conductivity of Si-doped AlxGa1-xN was often reported to drop abruptly at high Al content (x>0.7) and the reason was often speculated to be due to either compensation by deep levels or self-compensation of the so-called DX (or negative-U) center. Understanding the electronic structure of Si and carrier compensation processes is the essential for improving the n-type doping of high-Al-content AlxGa1-xN. In our studies of Si-doped AlGaN layers grown by metal-organic chemical vapor deposition, Electron Paramagnetic Resonanc

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49

Jakes, P., J. Wandt, C. Marino, H. A. Gasteiger, R. A. Eichel, and J. Granwehr. "In-operando Electron Paramagnetic Resonance Spectroscopy of Lithium Anodes During Electrochemical Cycling." Diffusion fundamentals 21 (2014) 20, S.1, 2014. https://ul.qucosa.de/id/qucosa%3A32429.

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50

Gibson, Kaylee Roy. "STRUCTURAL AND TOPOLOGICAL CHARACTERIZATION OF KCNE1 ELUCIDATED BY ELECTRON PARAMAGNETIC RESONANCE SPECTROSCOPYKCNE1." Miami University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=miami1368099139.

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