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Dissertations / Theses on the topic 'Ion chamber'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Mahalingam, Sudhakar. "Particle Based Plasma Simulation for an Ion Engine Discharge Chamber." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1198181910.

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2

Hobeila, Fadi. "Monte Carlo study of ion chamber response in low energy photon beams." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=78378.

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192Ir is one of the most popular radiation sources used for brachytherapy treatments. However, 192Ir emits a wide photon spectrum (10 keV to 900 keV) which impedes the creation of an 192Ir primary standard. The 192Ir air kerma calibration factor is derived by interpolating between 60Co, 137Cs and hard orthovoltage air kerma calibration factors obtained from a standards laboratory. The EGSnrc Monte Carlo package was used to calculate the response in low energy photon beams of a commercial parallel-plate chamber to assess useability as a 192Ir and kilovoltage photon beam calibration tool.

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3

Camp, Paul W. "Design and installation of a field ionization test chamber for ion thrusters." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10574.

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The utilization of carbon nanotube arrays for field ionization in ion thrusters allows for a substantial reduction in thruster size and weight. The availability of miniature ion thrusters may enable the development of a suitable propulsion system for nano- and picosatellites, and can realize substantial weight, volume, and cost savings in existing satellite platforms. This research focuses on the design of a field ionization test chamber that can be used to determine a comprehensive performance metric for the carbon nanotube field ionization micro-ion thruster (CNTFIMIT). Using the knowledge g

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4

Dhar, Saurav. "Ionospheric Simulator (IonSim): Simulating Ionospheric conditions in a vacuum chamber." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23931.

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Understanding and improving ionospheric models is important for both military and civilian purposes. This understanding improves prediction of radio propagation used for communication and GPS navigation. Various space-borne instruments, such as retarding potential analyzers (RPAs) and ion traps are routinely flown in low earth orbit (LEO) to provide data for seeding/improve ionospheric models. This thesis describes and characterizes a new ion source that can be used to test and calibrate these space-borne instruments inside a laboratory vacuum chamber. Hot filaments are used to thermionical

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5

Tran, Binh Phuoc. "Modeling of Ion Thruster Discharge Chamber Using 3D Particle-In-Cell Monte-Carlo-Collision Method." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/33510.

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This thesis is aimed toward developing a method to simulate ion thruster discharge chambers in a full three dimensional environment and to study the effect of discharge chamber size on ion thruster performance. The study focuses solely on ring-cusped thrusters that make use of Xenon for propellant and discharge cathode assembly for mean of propellant ionization. Commercial software is used in both the setup and analysis phases. Numerical simulation is handled by 3D Particle-In-Cell Monte-Carlo-Collision method. Simulation results are analyzed and compared with other works. It is concluded t

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6

Gruber, J. R. "A study of erosion due to low-energy sputtering in the discharge chamber of the Kaufman ion thruster." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249396.

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7

Andersson, Jonas. "Ion recombination in liquid ionization chambers : development of an experimental method to quantify general recombination." Doctoral thesis, Umeå universitet, Radiofysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-68942.

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An experimental method (the two-dose-rate method) for the correction of general recombination losses in liquid ionization chambers has been developed and employed in experiments with different liquids and radiation qualities. The method is based on a disassociation of initial and general recombination, since an ionized liquid is simultaneously affected by both of these processes. The two-dose-rate method has been compared to an existing method for general recombination correction for liquid ionization chambers, and has been found to be the most robust method presently available. The soundness

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8

Sánchez, Parcerisa Daniel [Verfasser], and Katia [Akademischer Betreuer] Parodi. "Experimental and computational investigation of water-to-air stopping power ratio for ion chamber dosimetry in carbon ion radiotherapy / Daniel Sánchez Parcerisa ; Betreuer: Katia Parodi." Heidelberg : Universitätsbibliothek Heidelberg, 2012. http://d-nb.info/1179785762/34.

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9

Chan, Kin Wa (Karl), University of Western Sydney, of Science Technology and Environment College, and School of Computing and Information Technology. "Lateral electron disequilibrium in radiation therapy." THESIS_CSTE_CIT_Chan_K.xml, 2002. http://handle.uws.edu.au:8081/1959.7/538.

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The radiation dose in radiation therapy is mainly measured by ion chamber. The ion chamber measurement will not be accurate if there is not enough phantom material surrounding the ion chamber to provide the electron equilibrium condition. The lack of electron equilibrium will cause a reduction of dose. This may introduce problems in treatment planning. Because some planning algorithms cannot predict the reduction, they over estimate the dose in the region. Electron disequilibrium will happen when the radiation field size is too small or the density of irradiated material is too low to provide

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10

Kabir, Md Latiful. "A MEASUREMENT OF THE PARITY VIOLATING ASYMMETRY IN THE NEUTRON CAPTURE ON ³He AT SNS." UKnowledge, 2017. http://uknowledge.uky.edu/physastron_etds/45.

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Weak nucleon nucleon couplings are largely unknown because of the involved theoretical and experimental challenges. Theoretically the topic is difficult due to the non-perturbative nature of the strong interaction, which makes calculations of the couplings challenging. Experimentally, the topic is difficult given that 1) the observables are determined by ratios between strong couplings and weak couplings which differ in size by seven orders of magnitude, and 2) theoretically clean and predictable measurements are almost always restricted to simple systems that do not allow for effects that enh

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11

Deisting, Alexander [Verfasser], and Silvia [Akademischer Betreuer] Masciocchi. "Measurements of ion mobility and GEM discharge studies for the upgrade of the ALICE time projection chamber / Alexander Deisting ; Betreuer: Silvia Masciocchi." Heidelberg : Universitätsbibliothek Heidelberg, 2018. http://d-nb.info/1177384647/34.

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12

Togno, Michele Verfasser], Jan [Akademischer Betreuer] [Wilkens, and Franz [Gutachter] Pfeiffer. "A novel ion chamber technology for quality assurance in external beam radiotherapy / Michele Togno ; Gutachter: Jan J. Wilkens, Franz Pfeiffer ; Betreuer: Jan J. Wilkens." München : Universitätsbibliothek der TU München, 2017. http://nbn-resolving.de/urn:nbn:de:bvb:91-diss-20170717-1356924-1-1.

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13

Penkal, Bryan James. "Steps in the Development of a Full Particle-in-Cell, Monte Carlo Simulation of the Plasma in the Discharge Chamber of an Ion Engine." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1367586856.

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14

Togno, Michele [Verfasser], Jan J. [Akademischer Betreuer] [Gutachter] Wilkens, and Franz [Gutachter] Pfeiffer. "A novel ion chamber technology for quality assurance in external beam radiotherapy / Michele Togno ; Gutachter: Jan J. Wilkens, Franz Pfeiffer ; Betreuer: Jan J. Wilkens." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1141296071/34.

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15

Fortune, Eugene C. IV. "Gamma and neutron dose profiles near a Cf-252 brachytherapy source." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34781.

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A new generation of medical grade Cf-252 sources was developed in 2002 at the Oak Ridge National Laboratory (ORNL). The combination of small size and large activity of these Cf-252 sources makes them suitable to be used with the conventional high-dose-rate (HDR) remote afterloading systems for interstitial brachytherapy. A recent in-water calibration experiment showed that the measured gamma dose rates near the new source are slightly greater than the neutron dose rates; contradicting the well established neutron-to-gamma dose ratio of approximately 2:1 at locations near a Cf-252 brachytherapy

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16

Jang, Si Young. "Advanced neutron irradiation system using Texas A&M University Nuclear Science Center Reactor." Texas A&M University, 2004. http://hdl.handle.net/1969.1/2788.

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A heavily filtered fast neutron irradiation system (FNIS) was developed for a variety of applications, including the study of long-term health effects of fast neutrons by evaluating the biological mechanisms of damage in cultured cells and living animals such as rats or mice. This irradiation system includes an exposure cave made with a lead-bismuth alloy, a cave positioning system, a gamma and neutron monitoring system, a sample transfer system, and interchangeable filters. This system was installed in the irradiation cell of the Texas A&M University Nuclear Science Center Reactor (NSCR).

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17

Lokits, Kirk Edward. "Interfacing Conventional and Capillary Flow to Argon Plasma: Elemental Detection for Bio-Analytical Applications." Cincinnati, Ohio : University of Cincinnati, 2008. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1227049009.

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Thesis (Ph. D.)--University of Cincinnati, 2008.<br>Advisor: Joseph Caruso PhD (Advisor), Patrick Limbach PhD (Committee Member), James Mack PhD (Committee Member). Title from electronic thesis title page (viewed Feb. 8, 2009). Keywords: ICPMS; phosphorothioates; antisense oligonucleotides; speciation; ion-paring reverse phase; microflow capillary nebulizer; total consumption spray chamber. Includes abstract. Includes bibliographical references.

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18

Motloung, Setumo Victor. "Intense pulsed neutron generation based on the principle of Plasma Immersion Ion Implantation (PI3) technique." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9599_1182748458.

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<p>The development of a deuterium-deuterium/ tritium-deuterium (D-D/ D-T) pulsed neutron generator based on the principle of the Plasma Immersion Ion Implantation (PI3) technique is presented, in terms of investigating development of a compact system to generate an ultra short burst of mono-energetic neutrons (of order 1010 per second) during a short period of time (&lt<br>20&mu<br>s) at repetition rates up to 1 kHz. The system will facilitate neutron detection techniques, such as neutron back-scattering, neutron radiography and time-of-flight activation analysis.</p> <p><br /> Aspects address

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19

Colucci, Giulia. "A fast ionization chamber for the detection of fusion-evaporation residues produced by the exotic beams of SPES: design, tests and first experiments." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3426239.

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This thesis work is divided in two parts: (i) designing and constructing a new ionization chamber with fast response (FastIC) for the study of near- and sub-barrier fusion of exotic systems using the very neutron-rich beams of the SPES facility in construction at the Laboratori Nazionali di Legnaro (LNL) of INFN, and (ii) carrying out, analyzing and interpreting the results of the sub-barrier fusion experiment for the two systems 36S + 50Ti,51V, performed using the FastIC. A new set-up for fusion cross-section measurements, especially designed for the low-intensity beams delivered by the SPES

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20

Larsson, Isak. "Utläsning av jonkammardata." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-176136.

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Tracercenter på Norrlands Universitetssjukhus producerar radiotracers. För att mäta aktiviteten hos de radioaktiva isotoperna används idag en jonkammare tillsammans med mjukvara byggt på Windows XP. Målet med det här examensarbetet är att bygga ny mjukvara som är kompatibelt med Windows 10. Mjukvaran ska tillhandahålla kalibreringsmöjligheter för isotoperna F-18, C-11 och Cs-137 samt kunna överföra uppmätt värde till datahanteringssystemet PETra.Med användandet av kodspråket Python och biblioteket TkInter har ett användargränsnitt och bakomliggande funktionskod utvecklats. Mjukvaran kommunicer

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21

Kelm, Robert S. "In-water neutron and gamma dose determination for a new Cf-252 brachytherapy source." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28121.

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22

Osuagwu, Chiemeriwo Godday. "Investigation of volatile organic compounds from diesel engine emissions using H3O+ chemical ionisation mass spectrometry (H3O+-CIMS)." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/205507/1/Chiemeriwo_Osuagwu_Thesis.pdf.

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Volatile organic compounds (VOCs) are organic compounds which exist in the gas phase at room temperature and atmospheric pressure. The lifespan of VOCs in the Earth's atmosphere ranges from a few minutes to months. Many VOCs are dangerous to human health and can undergo oxidation mediated aggregation to form secondary organic aerosols which are equally detrimental to human health. VOCs come from biogenic and anthropogenic sources, however, in cities, anthropogenic sources are dominant. A significant portion of these anthropogenic VOCs are coming from diesel vehicle emissions. Chemical composit

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23

Schmitt, Romain. "S-nitrosoglutathion et perméabilité intestinale : de la mise en place d’un modèle de chambre de Ussing à l’étude de l’impact de ce donneur de monoxyde d’azote sur la barrière intestinale Involved factors in the maintenance of intestinal barrier homeostasis: a review How to guarantee results from ex vivo studies based on Ussing chamber system for studying intestinal barrier integrity and function Comparison between two derivatization methods of nitrite ion labeled with 15N applied to liquid chromatography-tandem mass spectrometry Influence of S-nitrosoglutathione metabolism on its intestinal permeability Luminal S-nitrosoglutathione effects on intestinal barrier in an ex vivo model of Ussing chamber." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0342.

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Le monoxyde d’azote (NO) est connu pour ses nombreuses actions afin de maintenir l’homéostasie de la barrière intestinale, régulant la sécrétion de mucus, le stress oxydant, le système immunitaire… Le S-nitrosoglutathion (GSNO), donneur de NO naturellement produit par l’organisme, a montré une action bénéfique sur le renforcement de la barrière intestinale. L’enjeu est aujourd’hui de comprendre les mécanismes inhérents à cette observation. Pour ce faire une étude en Chambre de Ussing a été menée. Une fois le modèle d’étude validé par le suivi de marqueurs de perméabilité, les études histologiq

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24

Wallman, Andrew. "Safety and Visual Outcomes of Novel Abexterno Akreos® Single Pass Method of Transscleral Sutured Posterior Chamber IOL Implantation for Scleral Fixation of IOL." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/606216.

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A Thesis submitted to The University of Arizona College of Medicine - Phoenix in partial fulfillment of the requirements for the Degree of Doctor of Medicine.<br>We present the safety and efficacy of a novel transscleral sutured posterior chamber intraocular lens (TSSPCIOL) implantation approach utilizing 25 gauge vitrectomy and a foldable posterior chamber intraocular lens implant (AKREOS AO60, Bausch & Lomb). 80 consecutive eyes that underwent single surgeon TSSPCIOL implantation between October 2008 and July 2012 at a referral‐based retina institution were analyzed for best spectacle‐co

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25

Troup, Daniel James, and Daniel James Troup. "Impact of Passive Air Treatment on Microbial Contamination in a Controlled Chamber Environment." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625694.

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Microbial pathogens commonly transmitted through the aerosol route to surfaces, equipment, and hands in the clinical setting leads to costly and life threatening hospital-acquired infections (HAIs). Even with improved hand hygiene and surface disinfection, HAIs continue to persist in healthcare environments, warranting consideration of novel interventions to reduce the transmission risk of HAIs. This study quantitated the efficacy of ion generating passive air treatment (PAT) against viruses (MS2), bacteria (Escherichia coli), and bacterial spores (Bacillus thuringiensis) in a controlled envir

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26

Lippmann, Christian. "Detector physics of resistive plate chambers." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968973019.

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27

SAMPA, MARIA H. de O. "Desenvolvimento do processo de deposicao eletroforetica de boro em substratos de aluminio destinados a construcao de detectores de neutrons." reponame:Repositório Institucional do IPEN, 1988. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9892.

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SOUZA, EDSON A. de. "Medidas de fluxo de neutrons termicos utilizando ceramicas piroeletricas do tipo PZT com conversores de boro." reponame:Repositório Institucional do IPEN, 1995. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10425.

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29

Lamotte, Maxime. "Etude du signal optique des chambres à fission et évaluation de son exploitation pour un système de mesure neutronique d'un réacteur de génération IV Development and first use of an experimental device for fission-induced spectrometry applied to neutron flux monitoring SCENA: A simulation tool for radiation-induced gas scintillation Simulation of heavy-ion slowing-down tracks with the SCENA code Design and irradiation test of an innovative optical ionization chamber technology Pulse-reactor core monitoring with an innovative optical neutron detector." Thesis, Université Grenoble Alpes, 2021. http://www.theses.fr/2021GRALI023.

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Cette thèse de doctorat expose l'étude la luminescence induite dans des capteurs à gaz de type chambre à fission, afin d'évaluer son utilisation pour le suivi de puissance des réacteurs nucléaires de quatrième génération comme ASTRID.Le dépôt d'énergie dans un gaz par des ions lourds produits lors de fissions nucléaires dans une chambre à fission est d'ordinaire exploité pour sa capacité à produire des charges libres, qui peuvent être détectées avec des électrodes. Cette méthode, utilisée depuis le début de l'ère atomique, n'est pas sans inconvénients, et des axes d'amélioration ont été claire

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30

Ahmed, Syed Naeem. "Quantum fluctuations in a segmented ionization chamber for beam monitoring of synchrotron radiation." [S.l. : s.n.], 1998. http://deposit.ddb.de/cgi-bin/dokserv?idn=957510330.

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31

Münnich, Astrid. "Simulation studies for a high resolution time projection chamber at the international linear collider." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=984635068.

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32

Rabeony, Haveloma Manese. "Phenomenes de nucleation en phase vapeur : condensation a basse temperature et en presence d'ions." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13012.

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Etude experimentale de la germination homogene de vapeurs organiques a basse temperature a l'aide d'une chambre a diffusion thermique en vue de tester sur le plus grand intervalle possible de temperature la theorie classique de la germination homogene et de confronter les resultats obtenus avec ceux d'autres techniques experimentales. Etude theorique et experimentale de la germination heterogene en presence d'ions : l'etude theorique permet de verifier l'aptitude des differentes theories a prevoir correctement l'influence de l'ion central, puis les predictions sont confrontees aux resultats ex

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33

Sans, Merce Marta. "Development of drift chambers and physics simulations for the COMPASS experiment." Diss., [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=96444139X.

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34

Jenkins, Helen L. "Polyembryony, brood chamber development and gender specialisation in cyclostome bryozoans." Thesis, Bangor University, 2013. https://research.bangor.ac.uk/portal/en/theses/polyembryony-brood-chamber-development-and-gender-specialisation-in-cyclostome-bryozoans(1ae0346f-b932-4a2f-8169-a81b6e8bde4b).html.

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Investigations were conducted into aspects of the reproductive biology of the Cyclostomata, a relatively understudied ancient order of bryozoans. Evidence for polyembryony (cloning of sexually produced embryos) in all three major cyclostome clades was obtained using a molecular genetic approach (Chapter 2) confirming historical inferences based on microscopy and supporting the widely held view that this apparently paradoxical reproductive mode characterises the order. The paradoxical nature of polyembryony in the case of cyclostomes was investigated. Genotyping provided evidence for the prolon

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35

Schreiner, Alexander. "Aging studies of drift chambers of the HERA-B outer tracker using CF4 -based gases." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=964245442.

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Mahmoud, Tariq. "Development of the readout chamber of the ALICE transition radiation detector and evaluation of its physics performance in the quarkonium sector." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972387382.

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MAIA, ANA F. "Padronização de feixes e metodologia dosimétrica em tomografia computadorizada." reponame:Repositório Institucional do IPEN, 2005. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11291.

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Abu, Shgair Khaleel. "New possibilities for building high-vacuum chambers using glued aluminum plates and application to sputtered nanocomposite coatings." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966505174.

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Burgei, Rémi. "Une chambre à plaques parallèles à avalanche pour la localisation d'ions lourds relativistes." Paris 11, 1989. http://www.theses.fr/1989PA112289.

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Afin de localiser le point d'impact des ions lourds relativistes sur la cible de Diogène, nous avons réalisé et mis au point un détecteur X-Y à avalanche à basse pression d'isobutane comportant trois feuilles minces métallisées. Une étude préliminaire montre que c'est le seul détecteur répondant à notre cahier des charges : efficacité, précision de localisation, faible masse totale de matière (1,9 mg/cm2) répartie uniformément dans le faisceau de particules. La réalisation fait largement appel à une électronique fiable qui procure une grande souplesse de réglage et garantit une excellente stab

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Kosmata, Marcel. "Elastische Rückstoßatomspektrometrie leichter Elemente mit Subnanometer-Tiefenauflösung." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-84041.

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In der vorliegenden Arbeit wird erstmals das QQDS-Magnetspektrometer für die höchstauflösende Ionenstrahlanalytik leichter Elemente am Helmholtz-Zentrum Dresden-Rossendorf umfassend vorgestellt. Zusätzlich werden sowohl alle auf die Analytik Einfluss nehmenden Parameter untersucht als auch Methoden und Modelle vorgestellt, wie deren Einfluss vermieden oder rechnerisch kompensiert werden kann. Die Schwerpunkte dieser Arbeit gliedern sich in fünf Bereiche. Der Erste ist der Aufbau und die Inbetriebnahme des QQDS-Magnetspektrometers, der zugehörige Streukammer mit allen Peripheriegeräten und des

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41

Bashford, Christina Margaret. "Public chamber-music concerts in London, 1825-50 : aspects of history, repertory and reception." Thesis, King's College London (University of London), 1996. https://kclpure.kcl.ac.uk/portal/en/theses/public-chambermusic-concerts-in-london-182550--aspects-of-history-repertory-and-reception(49fd20fc-be12-4495-b0e9-6cb82deb2914).html.

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42

Nowack, Andreas. "Investigations of a pre-series of micro strip gas chambers with gas electron multipliers for high rate environments." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965272036.

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Osinga-Blättermann, Julia-Maria [Verfasser], and Wolfgang [Akademischer Betreuer] Schlegel. "Determination of absorbed dose to water in a clinical carbon ion beam by means of fluorescent nuclear track detectors, ionization chambers, and water calorimetry / Julia-Maria Osinga-Blättermann ; Betreuer: Wolfgang Schlegel." Heidelberg : Universitätsbibliothek Heidelberg, 2017. http://d-nb.info/1180738578/34.

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Vazquez, Numez Bernardo. "An experimental and numerical study of forced convection in ventilated chambers." Thesis, King's College London (University of London), 1997. https://kclpure.kcl.ac.uk/portal/en/theses/an-experimental-and-numerical-study-of-forced-convection-in-ventilated-chambers(5525a851-2a87-4a65-9669-d7098efd28ac).html.

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Jacquens, Julien. "Stabilité, réactivité et performances de conducteurs par ions oxyde de la famille LAMOX comme éléments de cœur de pile à combustible SOFC mono-chambre." Le Mans, 2010. http://cyberdoc.univ-lemans.fr/theses/2010/2010LEMA1020.pdf.

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Les composés de la famille LAMOX, dérivés de La2Mo2O9, sont de bons conducteurs ioniques par ions oxyde sous air mais peuvent être réduits sous atmosphère pauvre en oxygène. Mes travaux ont consisté à démontrer la faisabilité de leur utilisation en tant qu’électrolyte de pile à combustible à oxydes solides (SOFC) en configuration monochambre (moins réductrice). La première partie des résultats traite de la stabilité et des propriétés catalytiques des matériaux LAMOX et d’électrodes sous atmosphère propane:air (proche des conditions de pile monochambre). La stabilité des poudres LAMOX a été dém

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Monnet, François. "Système de détection à large acceptance angulaire et grande dynamique en énergie destiné à la physique des ions lourds aux énergies intermédiaires : détecteur M.E.Ω [oméga]". Paris 11, 1985. http://www.theses.fr/1985PA112156.

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Destiné à la physique des ions lourds aux énergies intermédiaire, le détecteur M. E. Ω fait appel à des techniques de détection très variées (chambre d’ionisation, plaques parallèles, plastiques scintillants), et complémentaires. Elles permettent la mesure de la vitesse et de l’énergie de noyaux, donc de leur masse et de leur charge, pour de grandes dynamiques. De l’étude théorique approfondie de chacune de ces techniques, on en déduit les limitations et les sources de perturbations. On explique les méthodes utilisées pour l’optimisation du compteur et les résultats obtenus. La sectorisation i

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Csigi, Péter János. "Shades of identity : an iconographic approach to the early Christian burial chambers in Sopianae (Pannonia)." Thesis, King's College London (University of London), 2018. https://kclpure.kcl.ac.uk/portal/en/theses/shades-of-identity-an-iconographic-approach-to-the-early-christian-burial-chambers-in-sopianae-pannonia(cb986e5d-ec77-47ef-b676-cf7cf582c271).html.

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There are several burial chambers in the Late Antique cemetery of the Roman town of Sopianae in Pannonia province (modern Hungary) decorated with wall paintings resembling Roman catacomb art. These underground chambers from the second half of the fourth century contain both specifically Christian images as well as gen-eral motifs in Roman funerary art. Via the iconographic analysis of the decorations in the SS Peter and Paul Burial Chamber and the Burial Chamber with the Jar, the identity of the commissioners can be assumed. The various iconographic elements and the compositions as a whole wer

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Eason, Christina. "Their Lordships divided? : the representation of women in the transitional House of Lords 1999-2009." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/their-lordships-divided-the-representation-of-women-in-the-transitional-house-of-lords-19992009(77d08d32-d7e2-4b77-afc8-dedd1987d4b7).html.

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This thesis set out to discern how women's representation, as a multi-faceted concept and process, plays out in the context of the House of Lords. The primary motivation of this inquiry concerned the reality that women are persistently under-represented in political chambers worldwide. Beyond this, scholarship has overlooked the site of the House of Lords despite significant advances made in women's presence that facilitate closer analysis. This is also compounded by the status of the chamber itself: in its 'transitional' phase post the passing of the House of Lords Act 1999 the chamber is sug

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Rider, C. M. "Our city and Chamber of London : the relationship between the City of London and the Crown in the reigns of Edward VI and Mary." Thesis, Bangor University, 1992. https://research.bangor.ac.uk/portal/en/theses/our-city-and-chamber-of-london--the-relationship-between-the-city-of-london-and-the-crown-in-the-reigns-of-edward-vi-and-mary(e2a28ab4-2afa-45b4-902f-4eb7368abaee).html.

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This study of the relationship between the City of London and the Crown in the reigns of Edward VI and Mary brings together the results of original research, based principally on the records of the City Corporation, the City livery companies and the central government, and the work of other historians of sixteenth century London, in particular G D Ramsay, S Rappaport, S Brigden, and I Archer. It examines the interaction between the central and civic governments in a number of areas of mutual concern: finance, overseas and internal trade, taxation, war and rebellion, high politics, patronage an

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Matysiak-Budnik, Tamara. "Helicobacter pylori et modifications de la perméabilité épithéliale gastrique." Bordeaux 2, 2000. http://www.theses.fr/2000BOR28767.

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