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Relevant bibliographies by topics / Microwave radiation / Dissertations / Theses

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Dissertations / Theses on the topic 'Microwave radiation'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Whittaker, Andrew Gavin. "Some chemical properties of microwave radiation." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259845.

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2

Maslanka, William Michael. "Extinction of microwave radiation in snow." Thesis, University of Reading, 2017. http://centaur.reading.ac.uk/72703/.

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Global observations of snow cover and snow water equivalent are vitally important for climatological and hydrological studies, at both global and local scales. Passive microwave remote sensing techniques have been used over the past 30 years to produce global estimations of snow water equivalent through empirical calculations. However, the uncertainties surrounding the influence of snow microstructure has led to large errors in snow water equivalent estimation. This study examined the extinction properties of the natural snowpack and produced a new extinction coefficient, for use with the semi

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3

Simms, Stephen William. "Microwave radiation control using textured surface substrates." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486194.

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The main objective of this work was to study the behaviour of antennas constructed using textured surface substrates, and to a certain extent provide control over their farfield radiation patterns. The properties of the textured surface have been analysed in terms of numerical electromagnetic simulation and by measurement, revealing both artificial magnetic conductor and electromagnetic bandgap properties. It is shown through measurement that by engineering the reflection phase response of such surfaces they can be made to reflect an incident circularly polarised .wave with the same sense as t

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4

Robb, Graeme R. "The microwave effect : non-thermal effects of microwave radiation in solid state chemistry." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/11895.

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Microwaves are commonly used for a number of solid state reactions, including sintering of ceramics, drying of materials and ionic substitution reactions. It is for such solid state processes that some of the most interesting effects are observed; yet these are presently amongst the most poorly understood. Diffraction is arguably the most incisive technique for the probing of solid state processes. To observe specific effects of microwave radiation it is necessary to perform <i>in-situ</i> diffraction experiments. Here we detail microwave applicators, modified for such a purpose. Simple phenom

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5

Piña-Sandoval, Flora Marcela. "The application of microwave radiation in materials chemistry." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/27193.

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We have developed tuned or tunable microwave cavities to be used in conjunction with an X-ray diffractometer working either in transmission mode with a capillary sample, or in reflection mode, with a flat plate. We have also developed further a microwave cavity that enables high-resolution neutron powder diffraction patterns to be taken, and tested it successfully on the High Resolution Powder Diffractometer (HRPD), at the ISIS Facility UK. One application that was planned was the elucidation of synthetic steps in the microwave-assisted formation of the zeolite ZSM-5. We also studied microwave

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6

Dineen, Patrick. "Peculiar features in the cosmic microwave background radiation." Thesis, University of Nottingham, 2005. http://eprints.nottingham.ac.uk/10133/.

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In this thesis, I develop statistics capable of detecting peculiar features in current observations of the cosmic microwave background (CMB) radiation. Such tools scrutinise the very foundations of standard cosmological models. Evidence of peculiar features in the CMB may require a reassessment of these building blocks. More likely, any features may be artefacts of some non-cosmological signal. Nevertheless, whether the origin of these strange attributes is primordial or local, their discovery would be instructive. Existing statistical tools focus on the amplitude of the spherical harmonic coe

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7

Vorster, Werner. "The effect of microwave radiation on mineral processing." Thesis, University of Birmingham, 2001. http://etheses.bham.ac.uk//id/eprint/309/.

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Between 50% and 70% of the total energy used in the extraction process may be attributed to comminution. Microwave pre-treatment has been suggested as a means to decrease the energy requirements. A variety of mineral ores have been investigated and the effects of microwave radiation quantified in terms of the mineralogy, changes in the Bond Work Index, flotability and magnetic separation. It has been shown that microwave pre-treatment is most effective for coarse grained ores with consistent mineralogy consisting of good microwave absorbers in a transparent gangue (up to a 90% decrease in Bond

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8

Lee, Jeongwoo Zirin Harold. "Study of solar microwave radiation using multifrequency data /." Diss., Pasadena, Calif. : California Institute of Technology, 1994. http://resolver.caltech.edu/CaltechETD:etd-09102008-092806.

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9

Doolittle, John William Jr. "Synthesis of microporous faujasitic zincophosphates in novel environments." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1116983708.

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10

Anderson, Adam. "Novel flavour ingredients for foods heated by microwave radiation." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431034.

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11

SCAGLIUSI, SANDRA R. "Estudo do reaproveitamento da borracha de cloropreno pela aplicação da tecnologia de microondas." reponame:Repositório Institucional do IPEN, 2007. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11555.

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Made available in DSpace on 2014-10-09T12:53:12Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:29Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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12

Kozič, Antoni. "Investigation of AIIIBV heterostructures under the action of microwave radiation." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080723_093503-68603.

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The thesis presents the investigation on how to increase the sensitivity of the narrowed sensors of radiation. Also the thesis also deals with the attempts to analyze the influence of the microwave radiation on to the narrowed semiconductor formations and to reveal the physical nature of the observed effects as well as to determine the influence of structure of the samples on the detected signal magnitude. The work solves the following major tasks: the characteristics of the narrowed semiconductor heterostructures depending on the quality of the modulation layers and on the parameters of the

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13

Bevis, Neil Andrew. "Constraints on topological defects using the cosmic microwave background radiation." Thesis, University of Sussex, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424400.

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14

Puchalla, Jason Lee. "Measuring cosmic microwave background radiation anisotropy on medium angular scales." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36965.

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15

Dalarsson, Mariana. "Online power transformer diagnostics using multiple modes of microwave radiation." Licentiate thesis, KTH, Elektroteknisk teori och konstruktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-129766.

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In the present thesis, we propose and investigate a new approach to diagnose the effects of the various degradation mechanisms, including thermal degradation at hot spots, winding deformations due to the mechanical forces from short circuit currents, partial discharges due to local electric field surges, and increased moisture levels in the cellulose insulation due to decomposition, that affect electric power transformers during their normal operation in an electric power grid. Although the proposed diagnostics method can in principle be used to detect various degradation mechanisms mentioned

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16

Dudley, Jonathan 1982. "Small-scale secondary anisotropies in the Cosmic Microwave Background." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112618.

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One of the main harbingers of the modern age of precision cosmology, the Cosmic Microwave Background (CMB) has proven itself to be a veritable trove of cosmological information. With the aid of experiments such as the WMAP satellite, precision measurements of the CMB anisotropy spectra are now being made.<br>This work will first explore the physics of the Vishniac effect, a small-scale CMB temperature anisotropy created by the Compton scattering of CMB photons by free electrons caught in a line-of-sight bulk flow. The Vishniac effect arises due to a density enhancement in the electrons caused

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17

Hasaani, A. S. "Pulsed electron cyclotron maser experiments with different configurations." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381323.

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18

Elgamil, Jamal E. M. "Development and optimisation of UV microwave germicidal lamp." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266312.

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19

Elsner, Franz. "Search for non-Gaussian Signatures in the Cosmic Microwave Background Radiation." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-123086.

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20

Gardner, June Ann. "Friedel-Crafts acylation reactions using heterogeneous catalysts stimulated by microwave radiation." Thesis, University of Central Lancashire, 2004. http://clok.uclan.ac.uk/20208/.

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Ion exchanged zeolites, ion exchanged clays, sulphated zirconia and silica supported phosphotungstic acid were prepared. Characterisation of the catalysts using pyridine adsorption revealed the catalysts contained both Brønsted and Lewis acid sites. When the catalytic activities for the acylation of toluene and anisole were studied there was found to be a correlation between the Brønsted acidity and the catalytic activity. The reactivity of the catalysts is dependant upon both the concentration and the chain length of the carboxylic acid. An optimum chain length being in the range Cm-C12. An a

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21

Stupakova, Jolanta. "Physical properties of porous silicon nanostructures under influence of microwave radiation." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080207_161717-66613.

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Just after discovery of porous silicon (PSi) there was clarified that its wide application in various fields opens new unexpected possibilities. One of the possibilities of products of porous silicon in microwave (MW) technique is carried out in the USA now. The propagation of MWs in PSi layers is under investigation. It has been shown that radio and optoelectronic connectors made from this material have low losses and can be applied to improve technique of cellular phone communication as well as other high frequency technique. It is obvious that the next element following the connector has to

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22

Leach, Mark. "A new method for holographic measurement of microwave antenna radiation patterns." Thesis, Northumbria University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416351.

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The rate at which new communications technologies are being developed has been immense and will continue to intensify for the foreseeable future. This evolution is fuelled by the desire to meet the wants and needs of the global community, by developing devices able to offer ever-increasing functionality, with greater complexity. To achieve this designers are forced to move to higher and higher frequencies. The antenna, as one of the fundamental building blocks of any radiated wave system, and as such, must develop along with the evolution of the communication system be it for, mobile, satellit

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23

Hu, Wen 1968. "Generation of coherent high-power microwave radiation with relativisitic electron beams." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/28102.

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24

Cartwright, John Kenneth Phinney E. Sterl Readhead Anthony C. S. "A limit on the polarization of the cosmic microwave background radiation /." Diss., Pasadena, Calif. : California Institute of Technology, 2003. http://resolver.caltech.edu/CaltechETD:etd-05292003-131234.

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25

Yau, Desmond. "Analysis of coupling, guiding and radiation mechanisms on several microwave structures /." [St. Lucia, Qld.], 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16164.pdf.

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26

Ruston, Benjamin C. "Characteristics of summertime microwave land emissivity over the conterminous United States." Access citation, abstract and download form; downloadable file 5.20 Mb, 2004. http://wwwlib.umi.com/dissertations/fullcit/3131699.

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27

Carbone, Carmelita. "Non-linear structure formation and cosmic radiation backgrounds." Doctoral thesis, SISSA, 2007. http://hdl.handle.net/20.500.11767/4271.

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Modern cosmology begins with Einstein's 1917 paper where he applies his General Relativity (GR) Theory to Cosmology. After that day many discoveries have been performed and many successes in the theoretical knowledge have been achieved. Nowadays, the opinion of many physicists is that the Universe is well-described by what Fred Hoyle termed a Big Bang Model, according to which the Universe expanded from a denser hotter stage to its current state, where the present energy budget is dominated for ~ 76% the by dark energy and for ~ 20% by dark matter (neither of which have never been detected i

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28

Lundgren, Nils. "Modelling microwave measurements in wood /." Luleå, 2005. http://epubl.luth.se/1402-1757/2005/61.

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29

Chen, Ming. "Electromagnetic radiation calorimetry of thermoplastics, elastomers and composites systems." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54780.

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The application of microwave radiation for processing of glassy and semicrystalline thermoplastics, elastomeric polymers and composites was investigated. The goal of this research was to reveal the relationship between polymer structure and microwave absorptivity, and hence processability. The specimens were subjected to an electric field at 2.45 GHz either inside a rectangular waveguide or in a cylindrical resonant cavity applicator with less than 100 watts applied power. Both travelling wave modes and standing wave modes were examined. Temperatures, powers and times were recorded, leading to

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30

Foote, Kimberley D. "Behavioural and physiological effects of 915 MHz microwave radiation on weaner pigs." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ48797.pdf.

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31

Kingman, S. W. "The effect of microwave radiation upon the comminution and beneficiation of minerals." Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503062.

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32

Lockyear, Matthew John. "Electromagnetic surface wave mediated absorption and transmission of radiation at microwave frequencies." Thesis, University of Exeter, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410814.

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33

O'Sullivan, Creidhe Margaret Mary. "Observations of anisotropies in the CMBR at 15 GHz with the CAT." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389958.

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34

Chia, Yan Wah. "Radiation from curved (conical) frequency selective surfaces." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/7200.

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The thesis deals with the analysis of a microwave Frequency Selective Surface (FSS) on a conical dielectric radome illuminated by a feed hom located at the base. Two approaches have been adopted to solve this problem. The first approach is to calculate the element currents under the assumption that the surface is locally flat. Consequently, the element current at that locality can be determined by employing Floquet modal analysis. The local incidence has been modelled from the radiation pattern of the source or the aperture fields of the feed. Three types of feed model were used to account for

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35

An, Zhong. "Interpretation of X-ray and microwave images : some transform methods and phase unwrapping." Thesis, King's College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313792.

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36

Jayawardene, Mohan B. R. "Radiation from resonant frequency selective horn antennas." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/32106.

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The research involves the analysis and design of a new band of horn antennas, namely Frequency Selective Horns (FSHs). Folding a Frequency Selective Surface (FSS) into a shape of a cone makes a FSH. The stimulus behind this research emanates from an idea to use the FSH as a microwave camera for medical diagnostic purposes. FSHs with dipole geometries have been modelled using existing software. A quasi-static approximation models the dipole elements with a dielectric backing as dielectrically loaded cylindrical conducting elements.

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37

Rana, Aman. "Optimizing Weed Management via Microwave Irradiation." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/75115.

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One potential alternative to chemical weed control is the use of microwave radiation, a particular form of indirect thermal weeding. Absorption of microwave radiation causes water molecules within the tissue to oscillate, thereby converting electromagnetic energy into heat. This technique is rapid, versatile and effective, as the electromagnetic waves heat the plant tissue and destroy cellular integrity. The objective of this research was to evaluate the potential use of dielectric heating for weed management. Ten weed species representing monocots and dicots were selected for this study:

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38

Blood, Alan Physics Faculty of Science UNSW. "Biological effects of GSM mobile phone microwave radiation: an investigation of gene expression." Awarded by:University of New South Wales. School of Physics, 2005. http://handle.unsw.edu.au/1959.4/22071.

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There is evidence that athermal radiofrequency radiation can alter Heat Shock Protein (HSP) expression or protein phosphorylation, or alter MAP kinase signalling. Effects of long-term exposure in brain tissue due to repeated HSP perturbation (eg an inhibition of apoptosis) have been hypothesised (French et al, 2001). This study aimed to investigate the RNA expression profile (12,000 genes) and HSP family protein expression levels after either acute 1-hour or chronic 4-day intermittent exposures to simulated GSM radiation in a human primary fibroblast model. The results found minimal or no effe

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39

Harrison, Patrick Charles. "A fundamental study of the heating effect of 2.45GHz microwave radiation on minerals." Thesis, University of Birmingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288547.

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The main motive for undertaking this thesis was the exploration of the special relation between space and word, a relation which has recently concerned architectural theory from various aspects. However it was for us important to explore this relation inside the framework of a special system, a system which allows the production of 'real' three dimensional space; drama. Our choice to deal with classical drama was based in its attribute of producing organised space in co-existence and interdependence with articulated speech. It was for us significant that we are not dealing with an internal ima

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40

Stahl, Benjamin Ingo. "Microwave pumped semiconductor superlattice parametric oscillator: a new subterahertz and terahertz radiation source." kostenfrei, 2008. http://www.opus-bayern.de/uni-regensburg/volltexte/2008/1037/.

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41

Рибалко, Юлія Олександрівна, Юлия Александровна Рыбалко, and Yuliia Oleksandrivna Rybalko. "Design of rectangular to circular waveguide transition for multiband DNP system." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46879.

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The wide availability of microwave devices and rapid increase in computational power for the calculation of complex electromagnetic systems has allowed the creation of numerous solutions for the transportation of microwave energy from the microwave source to the sample in the nuclear magnetic resonance (NMR) probe [1].

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42

Rodríguez, Gonzálvez Carmen. "Analysis of cosmic microwave background observations with the Arcminute Microkelvin Imager." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609911.

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43

Qin, Hua. "On the dynamics of single electron tunneling in semiconductor quantum dots under microwave radiation." Diss., [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962898368.

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44

Jones, William Claude Lange Andrew E. "A measurement of the temperature and polarization anisotropies of the cosmic microwave background radiation /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-05102005-102535.

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45

Tailony, Ra'uf. "Ion exchange glass strengthening using microwave processing." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1449764292.

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46

Liew, Soo Chin. "Thermoacoustic emission induced by deeply penetrating radiation and its application to biomedical imaging." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184783.

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Thermoacoustic emissions induced by 2450 MHz microwave pulses in water, tissue-simulating phantoms and dog kidneys have been detected. The analytic signal magnitude has been employed in generating 'A-mode' images with excellent depth resolution. Thermoacoustic emissions have also been detected from the dose-gradient at the beam edges of a 4 MeV x-ray beam in water. These results establish the feasibility of employing thermoacoustic signals in generating diagnostic images, and in locating x-ray beam edges during radiation therapy. A theoretical model for thermoacoustic imaging using a direction

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47

Anderson, Martin William Bruce 1965, University of Western Sydney, of Science Technology and Environment College, and School of Computing and Information Technology. "A radio survey of selected fields from the ROSAT All Sky Survey." THESIS_CSTE_CIT_Anderson_M.xml, 2002. http://handle.uws.edu.au:8081/1959.7/359.

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The beginning of X-ray astronomy is based on two accidental discoveries made in 1962. A single point source, Scorpio X-1 and remarkable discovery of the diffuse background radiation, three years before the microwave background was discovered. Over the past four decades, X-ray astronomy has matured into a major branch of astronomy, contributing to our understanding of the physical processes operating in many different types of sources, from stars to high redshift quasars. In 1990, the launch of the ROSAT satellite offered to unique opportunity to investigate the radio properties of X-ray emitte

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48

Nejati, Houshin. "Analysis of physical properties and thermo – mechanical induced fractures of rocks subjected to microwave radiation." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123156.

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This doctoral thesis investigates the microwave heating process, and its influence upon the physical properties and propagation of fractures in Rocks Under Illumination (RUI).In order to best understand microwave-assisted rock fracturing, it is critical to investigate the different aspects of this process. These range from the electromagnetic study (i.e., dielectric heating and heat generation), to the mechanical aspects (i.e., heat transfer, strength reduction material mechanics and fracture mechanics), and finally to the final fracturing behaviour of RUIs (i.e., fractography). In order to un

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49

Savage, Richard Stephen. "Searching for non-gaussianity in the cosmic microwave background radiation using the Very Small Array." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615771.

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50

Baskaran, Deepak. "Observational manifestations of gravitational waves in ground based interferometers and the Cosmic Microwave Background radiation." Thesis, Cardiff University, 2006. http://orca.cf.ac.uk/56098/.

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In this work we analyze two possible observational manifestations of gravitational waves. We consider the effects of gravitational waves on ground based laser interferometric detectors, and the imprints of relic gravitational waves on the Cosmic Microwave Background (CMB) radiation. In order to study the effect of a gravitational wave on a laser interferometer it is crucial to understand the movement of free test particles. The detailed knowledge of this motion is important conceptually and practically, because the mirrors of laser interferometric detectors of gravitational waves are essential

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