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Dissertations / Theses on the topic 'Ions'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Pickles, Raymond J. "Intracellular calcium ions in epithelial ion transport." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307103.

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2

Voulot, Didier. "An experimental study of state selective electron capture by state prepared low energy (<25 keV amu'-'1) ions in atomic and molecular hydrogen." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325995.

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3

Campbell, Corey Justin. "Trapping, laser cooling, and spectroscopy of Thorium IV." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/48973.

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Application of precision laser spectroscopy and optical clock technology to the ground and metastable, first excited state of the ²²⁹Th nucleus at < 10 eV has significant potential for use in optical frequency metrology and tests of variation of fundamental constants. This work is a report on the development of required technologies to realize such a nuclear optical clock with a single, trapped, laser cooled ²²⁹Th³⁺ ion. Creation, trapping, laser cooling, and precision spectroscopy are developed and refined first with the naturally occurring isotope, ²³²Th. These technologies are then extended

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4

Choi, Jong-Ho Okumura Mitchio Okumura Mitchio. "Infrared spectroscopy of molecular ions and ion-solvent clusters /." Diss., Pasadena, Calif. : California Institute of Technology, 1995. http://resolver.caltech.edu/CaltechETD:etd-09252007-09111.

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5

Newson, Karl Adrian. "The properties of gas-phase multiply charged ions." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324990.

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6

MAAZOUZ, MOSTAFA. "Formation des ions negatifs lors de collisions ions/atomes-surfaces." Paris 11, 1997. http://www.theses.fr/1997PA112053.

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Ce travail de these porte sur une etude experimentale de la formation d'ions negatifs lors de la diffusion d'ions ou atomes de h, o, f et cl sur des surfaces metalliques (mg, al et ag) et de silicium. La fraction d'ions negatif d'hydrogene mesuree sur les differents metaux est en bon accord avec les calculs cam. L'analyse theorique montre que la difference entre les fractions observees doit etre reliee aux caracteristiques de la bande de valence des metaux. Ces mesures ont ete etendues au cas de la formation d'ions negatifs d'oxygene, de fluor et de chlore. Une comparaison avec des modeles the

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7

Avkiran, Metin. "Pathophysiological roles, pharmacological inhibition and cellular regulation of the cardiac sarcolemmal sodium/hydrogen exchanger." Thesis, University of Bath, 2002. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.601638.

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8

Shepherd, Juliet. "Theoretical studies of slow collisions : elastic electron scattering from positive ions, charge transfer in one-electron ion-ion systems and mutual neutralization of Hâ»/Dâ» and Hâºâ‚‚." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366574.

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9

Donohoe, Timothy J. "Chiral oxonium ions." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314854.

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10

Bäckström, Erik. "LIfetimes measurement states in ions at an ion storage ring." Licentiate thesis, Stockholms universitet, Fysikum, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-67024.

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11

Russell, Elspeth. "Ions and ion transport mechanisms in the developing chick embryo." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287301.

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12

Fisher, Zachary (Zachary Kenneth). "Shuttling of ions for characterization of a microfabricated ion trap." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78510.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 65-67).<br>In this thesis, I present experimental results demonstrating the characterization of a planar Paul trap. I discuss the theory of ion trapping and analyze the voltages required for shuttling. Next, the characteristics of a digital-to-analog converter (DAC) are calibrated, and this instrument is integrated into trapping experiments to test the viability of the analytic model. Combining theory with the capabilities of the DAC,

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13

MANOSSO, HELENA C. "Desenvolvimento de eletrodos de troca iônica eletroquímica para o tratamento de rejeitos contendo íons crômio ou césio." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11439.

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Made available in DSpace on 2014-10-09T12:51:56Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:07:55Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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14

Xu, Yaodong. "Applications of mass spectrometric techniques to charge-transfer processes and cluster ion reactions." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/26208.

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15

Pradhan, Atul D. (Atul Deep). "Photodissociation of molecular ions and low-energy collisions of atoms and ions." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/17317.

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16

Ma, Yiu Wa. "Fixed bed removal of heavy metal ions by chelating ion exchange." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491880.

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Column runs with varied operation conditions of flowrate, feed concentration and particle size have been conducted to observe the sorption of nickel, copper and zinc by the chelating resin. They all show a typical constant-pattern, steep curve in the first part of the breakthrough curve and the slope would dramatically reduce at a breakpoint such that it would take extremely long time to reach 100% breakthrough level. ~ The Modified Bed Depth Service Time (BDST) model incorporated with a timedependent bed capacity has been used together with the Empty Bed Residence Time (EBRT) model to analyze

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17

Kelly, Gregory J. "Negative ion production from positive ions incident in a metal vapour." Thesis, University of Ottawa (Canada), 1987. http://hdl.handle.net/10393/22416.

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18

Ashman, A. S. "Laser spectroscopy of molecular ions in an Ion Cyclotron Resonance apparatus." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234408.

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19

Beckert, Marco. "Photodissociation dynamics of halogens and halogen-ions studied by ion imaging." Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274674.

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20

Labaziewicz, Jarosław. "High fidelity quantum gates with ions in cryogenic microfabricated ion traps." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45167.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 135-146).<br>While quantum information processing offers a tantalizing possibility of a significant speedup in execution of certain algorithms, as well as enabling previously unmanageable simulations of large quantum systems, it remains extremely difficult to realize experimentally. Recently, fundamental building blocks of a

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21

Miller, Catherine Elizabeth. "On the stability of complex ions in ionic liquid Ion sources." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98808.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 139-141).<br>Ionic liquids are molten salts at room temperature that consist of positive and negative ions. These liquids can be used in electrosprays to produce ion beams. Ionic liquid ion source (ILIS) beams typically consist of single ions and solvated ions. It has been observed that solvated ions are not always stable and can break up into lighter ions midflight. Past experiments show that the stability

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22

Türp, David [Verfasser]. "Dendronized ions / David Türp." Mainz : Universitätsbibliothek Mainz, 2012. http://d-nb.info/1025995759/34.

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23

Jonathan, P. "Translational spectroscopy of ions." Thesis, Swansea University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637445.

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Translational spectroscopy is used to examine the keV collision reactions of small ions with thermal neutral species. State selective single electron capture data for Ar<SUP>2+</SUP> on rare gas and small molecular targets is interpreted in terms of calculated reaction windows and charge exchange channels. Evidence for double ionisation of hydrocarbon targets is presented. Dissociation of H<SUB>2<SUP>+</SUB></SUP> occurs predominantly via direct electronic excitation. A second two collision process involving H<SUB>2</SUB> intermediates accounting for 5% of H^+ fragment yield is examined; H^- f

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24

Carlin, N. M. "Photodetachment of negative ions." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411056.

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25

Ferrigato, Alberto. "Spectroscopy of coupled ions." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277517.

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26

Angel, Laurence Ambrose. "Reactions of atmospheric ions." Thesis, University of Sussex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297548.

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27

Weisskoff, Robert Mark. "Detecting single, trapped ions." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/68230.

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28

De, Palatis Michael V. "Production of cold barium monohalide ions." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50251.

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Ion traps are an incredibly versatile tool which have many applications throughout the physical sciences, including such diverse topics as mass spectrometry, precision frequency metrology, tests of fundamental physics, and quantum computing. In this thesis, experiments are presented which involve trapping and measuring properties of Th³⁺. Th³⁺ ions are of unique interest in part because they are a promising platform for studying an unusually low-lying nuclear transition in the 229Th nucleus which could eventually be used as an exceptional optical clock. Here, experiments to measure electronic

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29

Lentz, Nicholas B. "Electrospray ionization mass spectrometry from cluster ions to toxic metal ions in biology /." [Ames, Iowa : Iowa State University], 2007.

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30

May, Paul W. "The energies of ions, electrons and neutral in reactive ion etching plasmas." Thesis, University of Bristol, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303946.

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31

Back, Tekla. "Laser spectroscopy of highly charged ions using an electronic beam ion trap." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.711594.

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32

Jonah, Tosin Mobolaji. "Selective Sensing of Ions and Ion Pairs of Environmental and Forensic Significance." FIU Digital Commons, 2017. https://digitalcommons.fiu.edu/etd/3498.

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Dual-host combinations of cation and anion sensors have unique potential for selective detection of ion pairs, such as NH4NO3, via solvent extraction. Selective sensors for NH4+ and NO3- were synthesized and used together for ion-pair sensing of ammonium nitrate both in organic solvents (using Bu4N+NO3 - and NH4+PF6-) and in extraction of NH4NO3 from water into dichloromethane. A fluorescent sensor for NH4+ based on 1,3,5-triethylbenzene shows remarkable binding and sensing selectivity for NH4+ vs. K+. Fluorescence and 1H-NMR titrations reveal surprising differences in sensing properties and b

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33

Matsushita, Michio. "Experimental and Theoretical Studies of Organic High-Spin Ions and Extremely Non-Rigid Ions." 京都大学 (Kyoto University), 1992. http://hdl.handle.net/2433/168825.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(理学)<br>甲第4984号<br>理博第1381号<br>新制||理||770(附属図書館)<br>UT51-92-J31<br>京都大学大学院理学研究科化学専攻<br>(主査)教授志田忠正, 教授廣田襄, 教授梶本興亜<br>学位規則第4条第1項該当

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34

Ahrika, Abdelkader. "Réactivité nucléophile des ions polysulfures ; génération et caractérisation des ions polyséléniures dans le diméthylacétamide." Tours, 2000. http://www.theses.fr/2000TOUR4015.

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L'étude de la réactivité nucléophile des ions polysulfures s 3. Vis-à-vis des halogénures d'alkyle RX et des S-phenyl thioesters RC(O)SPH a été mise en œuvre par spectroélectrochimie dans le N,N-diméthylacétamide. Les ions RS x ($$x 5) initialement issus de la substitution (Sn2) des ions S(-1/3) réagissent ensuite sur les dérivés RX pour conduire a des mélanges RSzR ($$z 3,5 en solution diluée ; $$z 3,8 au niveau préparatif). Avec les substrats RC(O)SPH, les ions RC(O)S / RC(O)S 2 en équilibre sont les produits de substitution alors que le nucléofuge se trouve sous la forme PhS 4. La cinétique

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35

Palla, Veladri. "Heterometallic Interactions of d8-d10 Metal Ions in the Presence of +2 Cations." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/PallaV2007.pdf.

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36

Schmidt, Dirk Christoph. "Etude des défauts créés par implantation dans le silicium et de leur influence sur la diffusion du platine." Poitiers, 1998. http://www.theses.fr/1998POIT2343.

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Les recherches concernant le travail presente dans cette these d'universite ont ete effectuees dans trois pays differents de la communaute europeenne ; au laboratoire de metallurgie physique de l'universite de poitiers, au laboratoire du iv. Physikalisches institut de l'universite de gottingen (allemagne) et au laboratoire d'electronique de l'etat solide a l'institut royal de technologie de stockholm (suede). L'or et le platine sont des impuretes metalliques couramment employees dans l'industrie electronique pour controler la duree de vie des porteurs minoritaires dans les dispositifs de puiss

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37

Reinhard, Björn M. "Chemistry of microsolvated metal ions." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969739273.

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38

Lindqvist-Reis, Patric. "Structure of solvated matal ions." Doctoral thesis, KTH, Chemistry, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2996.

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<p>The structure of the solvated group 3 ions scandium(III),yttrium(III) and lanthanum(III), has been determined in aqueoussolution and in some oxygen donor solvents, and compared withthe hydrated group 13 ions gallium(III) and indium(III). Acombination of X-ray absorption fine structure (XAFS), largeangle X-ray scattering (LAXS), crystallography and vibrationspectroscopy has been used for the structure studies of thehydrated ions and their dimethylsulfoxide andN,N´-dimethylpropylene urea solvates in solution and inthe solid state. For the hexahydrated gallium(III) andindium(III) ions in solut

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39

Skupinski, Marek. "Nanopatterning by Swift Heavy Ions." Doctoral thesis, Uppsala University, Department of Engineering Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7183.

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<p>Today, the dominating way of patterning nanosystems is by irradiation-based lithography (e-beam, DUV, EUV, and ions). Compared to the other irradiations, ion tracks created by swift heavy ions in matter give the highest contrast, and its inelastic scattering facilitate minute widening and high aspect ratios (up to several thousands). Combining this with high resolution masks it may have potential as lithography technology for nanotechnology. Even if this ‘ion track lithography’ would not give a higher resolution than the others, it still can pattern otherwise irradiation insensitive materia

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40

Phillips, Rosemary Helen. "Metal ions and Helicobacter pylori." Thesis, King's College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408125.

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41

Antonsen, Carolina. "Surface scattering using KeV ions." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/5393.

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42

Nagy, Jozsef Bordas. "Kilovolt collisions of small ions." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/21086.

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43

Poteau, Xavier. "Fluorescent sensors for metal ions." Thesis, University of Central Lancashire, 2001. http://clok.uclan.ac.uk/21458/.

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The considerable current interest in the use of fluorescent molecules in molecular recognition is not new, but is one that has increased in importance in recent years due to their applications in many fields including trace analysis in chemistry and biochemistry. Using the "dual fluorescence" properties of TICT state compounds (Twisted Intramolecular Charge Transfer which gives an extra red-shifted emission band) and the key property of crown ether compounds which is their ability to complex ions, we designed and synthesised a range of new fluoroionophores and studied their photophysical behav

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44

Skupiński, Marek. "Nanopatterning by swift heavy ions /." Uppsala : Acta Universitatis Upsaliensis, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7183.

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45

Brandefelt, Nicklas. "Resonant States in Negative Ions." Doctoral thesis, Stockholm : Univ, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-199.

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46

Jarvis, Vern Marshall. "Studies of molecular cluster ions." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/30074.

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47

McIntyre, Sara Anne. "Stereospecific cyclisations via episulphonium ions." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330069.

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48

Steinbach, Joerg. "Quantized motion of trapped ions." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313334.

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49

McNab, Iain Ross. "The spectroscopy of molecular ions." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329941.

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50

Ramsbottom, Catherine Anne. "Photoabsorption by atoms and ions." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239229.

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