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1

Salimi, Marziyeh. „Determination of 27Al(d, p&α) and 17O(p, p) reaction cross section at E < 2MeV“. Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS123.

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L’IBA (Ion Beam Analysis) a été largement utilisée pour analyser quantitativement et avec une grande sensibilité la composition et les profils de profondeur des éléments dans les régions superficielles des solides. Pour l’analyse des éléments légers, on peut trouver des réactions nucléaires appropriées et, en particulier, les réactions induites par les deutérons, (d,p) ou (d,α), ont souvent des chaleurs de réaction Q élevées et des sections efficaces appréciables. Dans de nombreux cas de NRA (Nuclear Reaction Analysis) de films minces, des pics isolés de particules de réaction peuvent être obtenus avec un choix judicieux de l’angle de diffusion, de l’énergie du faisceau incident et des feuilles de filtrage devant le détecteur de particules chargées. Cependant, en général, la NRA génère des spectres complexes avec des pics qui se chevauchent, en particulier pour les échantillons épais. La connaissance des sections efficaces pour les cas de pics isolés est déjà utile pour concevoir des expériences visant à déterminer les contenus élémentaires des films minces. De nombreuses sections efficaces de ce type, par exemple 16O(d,p0)17O, 16O(d,p1)17O, 12C(d,p0), 14N(d,α0), ont été soigneusement mesurées dans des gammes d’énergie et d’angle d’intérêt analytique [87–90]. Il est parfois possible d’analyser plusieurs éléments légers simultanément par NRA. La connaissance des sections efficaces des réactions qui ne sont pas nécessairement d’un intérêt primordial pour l’analyse des couches minces, est alors souvent nécessaire pour les cas où les cibles contiennent des éléments donnant lieu à des réactions produisant des groupes de particules qui interfèrent avec le pic analytique primaire, et encore plus dans le cas de la NRA sur cible épaisse où l’élargissement des spectres de particules dû à l’épaisseur non nulle de la cible entraîne une probabilité beaucoup plus grande d’interférences élémentaires [26, 38, 91]. La nécessité de disposer de sections efficaces précises, même lorsqu’elles ne présentent pas un intérêt primordial pour un problème analytique spécifique, ou dans des gammes d’énergie qui ne sont pas directement utiles sur le plan analytique, s’est également accentuée récemment, avec l’introduction du concept d’IBA totale [92–94], dans lequel toutes les informations des spectres IBA [95] sont exploitées, et l’utilisation croissante de l’intelligence artificielle et des approches d’apprentissage automatique pour optimiser l’extraction d’informations de toutes les parties des spectres IBA. Jusqu’à présent, les réseaux neuronaux artificiels (ANN) ont été appliqués au cas de la spectrométrie de rétrodiffusion de Rutherford, où les sections efficaces sont connues analytiquement, mais l’extension fiable de ces techniques avancées de traitement des données à la NRA nécessite les meilleures sections efficaces de réaction nucléaire possibles. En outre, des sections efficaces de réaction nucléaire expérimentale précises sont nécessaires pour fournir des paramètres appropriées pour les approximations et les expressions appropriées des modèles théoriques de mécanismes de réaction nucléaire. L’oxygène étant l’élément le plus abondant de la croûte terrestre et en raison de l’importance universelle des oxydes dans les sciences de la terre et des matériaux, des sections efficaces précises pour les réactions nucléaires sur 16O et 18O ont déjà été déterminées [87, 96]. Le deuxième élément le plus abondant est le silicium, et bien qu’il s’agisse d’un élément de masse intermédiaire du point de vue de l’IBA, il y a également des réactions nucléaires d’intérêt analytique qui ont été déterminées [88, 97]. L’aluminium, troisième élément le plus abondant, est largement utilisé dans l’industrie pour ses propriétés mécaniques et électriques, ses applications décoratives et sa résistance aux agressions environnementales, notamment après une passivation électrochimique appropriée. L’aluminium est également largement présent dans les roches [...]
The overall objective of this thesis is to contribute experimentally determined and evaluated cross sections to a differential cross-section database for Ion Beam Analysis (IBA) that contains accurate and reliable data freely available to the user community, such as the Ion Beam Analysis Nuclear Data Library (IBANDL) database (https://www-nds. iaea.org/exfor/ibandl.htm) [1]. In the first part of the present thesis, we determined differential cross-sections of the reactions 27Al(d, p&α) and benchmarked them with thick target spectra derived from pure aluminum in two independent laboratories. The differential cross section of 27Al(d, p&α) reactions was determined between 1.4 MeV and 2 MeV at scattering angles of 165◦, 150◦, and 135◦ in the VDGT laboratory in Tehran (Iran), as well as measuring them again, including target preparation, at a scattering angle of 150° with independent equipment at INSP in Paris (France). We found close agreement between these two experimental measurements in two different laboratories at 150°. There is no nuclear reaction model that can be adjusted to represent these cross sections since the compound nucleus has a level structure that cannot be treated with current models. We proposed a fitted Fourier series function to represent the evaluated data to define the Al-cross sections. The evaluated differential cross sections have been benchmarked and validated using thick target charged particle spectra obtained using incident deuteron beams of energies between 1.6 MeV and 2 MeV at both laboratories. The validation was performed by fitting deuteroninduced particle spectra obtained from a high purity bulk Al target with SIMNRA, and the thick target spectra are reproduced, allowing the recommendation of the use of these cross sections for NRA. In the second part of the present thesis, the elastic proton scattering cross sections on 17O were measured for the first time at the SAFIR platform at INSP in Paris. Thin films of 17O were prepared by thermal oxidation of Si at 1100 ◦C under 17O2. The physical thickness of the silica was determined by ellipsometry and the atomic thickness by RBS with an uncertainty of 3%. The small quantities of 18O and 16O, present as impurities in the highly enriched 17O2 gas used to grow these films, were determined by the established NRA techniques using the 18O(p, α)15N and 16O(d, p1)17O nuclear reactions. We determined the yield of elastically scattered protons using the corresponding peak in the Elastic Backscattering (EBS) spectra; however, this peak sits on the large continuiiious signal from the silicon substrate. The Si signal was significantly suppressed by aligning the incident beam with the < 100 > axis of the single crystal silicon by ion channeling. The solid angle of the detector, placed at a scattering angle of 165◦, was determined by elastic scattering measurements of 2 MeV alpha particles on a reference sample of Bi implanted in Si. The measured 17O(p, p) cross section, with a systematic uncertainty of about 14%, consists of several resonant structures superimposed on a smoothly varying component increasing ranging from about 1.2 times the Rutherford cross section at 600 keV to about 3 times Rutherford at 2 MeV. A resonance at 1230 keV shows promise for EBS depth profiling, especially at large backscattering angles
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2

Niemand, Samuel Jacobus Johannes. „Sinkretisme as teologiese uitdaging met besondere verwysing na die Ibandla Lamanazaretha“. Access to E-Thesis, 2006. http://upetd.up.ac.za/thesis/available/etd-03232006-113159/.

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3

Urbánek, Ivan. „Modernizace aparatury IBAD“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228242.

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This thesis is divided into three main parts dealing with ion beam assisted deposition. In the first part there is a brief description of the IBAD chamber at Institute of Physical Engineering of BUT. There is also a detailed description of control of the IBAD apparatus during deposition. Next part deals with measuring of deposition rates of ion sputtering in order to refine deposition of thin layers. Last part deals with planned and already finished changes that should improve quality and speed of thin layers deposition. Changes include the option of covering the substrate holder, change of the entry flange, design of new insertion chamber with multifunctional substrate holder and the option to control the deposition by computer.
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4

Kabongo, Diem [Verfasser]. „Les Facteurs Des Insuffisance de la Prise en Charge des Diabétiques Dans la Zone de Sante D´Ibanda / Diem Kabongo“. München : GRIN Verlag, 2020. http://d-nb.info/1222030527/34.

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5

Carrillo, Celis Oscar Daniel [Verfasser], Marcela [Akademischer Betreuer] Ibanez, Marcela [Gutachter] Ibanez, Gerhard [Gutachter] Riener und Holger [Gutachter] Rau. „Essays on Social Preferences in Children and Adolescents: Experimental Evidence from Colombia and India / Oscar Daniel Kromer (geb. Celis Carrillo) ; Gutachter: Marcela, Ibanez; Gerhard, Riener; Holger, Rau ; Betreuer: Marcela, Ibanez“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1210264692/34.

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6

Kromer, Oscar Daniel [Verfasser], Marcela [Akademischer Betreuer] Ibanez, Marcela [Gutachter] Ibanez, Gerhard [Gutachter] Riener und Holger [Gutachter] Rau. „Essays on Social Preferences in Children and Adolescents: Experimental Evidence from Colombia and India / Oscar Daniel Kromer (geb. Celis Carrillo) ; Gutachter: Marcela, Ibanez; Gerhard, Riener; Holger, Rau ; Betreuer: Marcela, Ibanez“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1210264692/34.

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7

Grugel, J. B. „Populism, nationalism and liberalism in Chile : The second administration of Carlos Ibanez, 1952-58“. Thesis, University of Liverpool, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373771.

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8

Bell, Duane Hodges. „El naturalism tardio de Vicente Blasco Ibanez en cuatro novelas Valencianas: Zola en Espana“. Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/289061.

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This study proposes to establish the influence of the French Naturalist writer Emile Zola in four of the Valencian novels of the Spanish writer Vicente Blasco Ibanez. In order to achieve the stated goal, an extensive outline of the salient characteristics of Zola's Naturalism in the four works of the Spanish author has been formulated. The outline is followed for each chapter, illustrating the ever-increasing influence of Zola in subsequent works in the series. The four Valencian novels analyzed in this study exemplify the characteristics of Zolian Naturalism presented in the outline, among them expressionist and impressionist description, the battle between many protagonists and their environment and the problems presented by the historical moment in which they live, the materialist/determinist vision of life, and the symbolic significance of the characters and settings, just to list a few. The four novels studied in this dissertation are Arroz y tartana, Flor de mayo, La barraca and Canas y barro. A comparative/historical approach is used in order to observe the characteristic style of Emie Zola as seen in several of his novels, among them L'Assommoir and Germinal.
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9

Essien, David Ibanga Ene. „Recommendation on a suitable desalination process for the South African environment / Essien, David Ibanga Ene“. Thesis, North-West University, 2010. http://hdl.handle.net/10394/4627.

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Supplies of potable water from traditional sources have been increasingly depleted due to increasing world population and per capita water use. In South Africa fresh water is a vital, but scarce resource, distributed unevenly in time (frequent droughts alternate with periods of good rainfall) and space (the eastern half of the country is markedly wetter than the western half). Increasing demand for water, and decreased water quality, make careful water management a priority. Water use in South Africa is dominated by irrigation, which accounts for around 60 per cent of all water used in the country. Domestic and urban use accounts for about 30 per cent, while mining, large industries and power generation account for some 7 per cent. Commercial forestry plantations account for a little less than 4 per cent of total use by reducing runoff into rivers and streams (DWAF). Desalination of sea water is a promising technology available for the provision of fresh water to the arid regions of South Africa. However, as the technology develops, there is a need for the adequate customization of its technological processes to suite particular geographical regions. This research work is focused on the determination of an adequate desalination process by the use of a decision tree. The research will explore in qualitative format, the different types of desalination processes available, their pros and cons as well as discuss the factors affecting the selection of desalination processes.
Thesis (M.Ing. (Development and Management))--North-West University, Potchefstroom Campus, 2010.
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10

Jewett, Alicia Terese. „A contemporary ethnography : change and continuity among the Ibani of coastal Nigeria“. Thesis, University of Cambridge, 1988. https://www.repository.cam.ac.uk/handle/1810/250928.

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11

Jayum, A. Jawan Victor T. „Political change and economic development among the Ibans of Sarawak, East Malaysia“. Thesis, University of Hull, 1991. http://hydra.hull.ac.uk/resources/hull:5341.

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12

Gavin, Traude. „Iban ritual fabrics : their patterns and names“. Thesis, University of Hull, 1995. http://hydra.hull.ac.uk/resources/hull:12342.

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13

Schneider, Sebastian Olivier [Verfasser], Marcela [Akademischer Betreuer] Ibanez, Marcela [Gutachter] Ibanez, Martin [Gutachter] Schlather und Stephan [Gutachter] Klasen. „Advances and Applications of Experimental Measures to Test Behavioral Saving Theories and a Method to Increase Efficiency in Binary and Multiple Treatment Assignment / Sebastian Olivier Schneider ; Gutachter: Marcela Ibanez, Martin Schlather, Stephan Klasen ; Betreuer: Marcela Ibanez“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1149954671/34.

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14

Schneider, Sebastian O. [Verfasser], Marcela [Akademischer Betreuer] Ibanez, Marcela [Gutachter] Ibanez, Martin [Gutachter] Schlather und Stephan [Gutachter] Klasen. „Advances and Applications of Experimental Measures to Test Behavioral Saving Theories and a Method to Increase Efficiency in Binary and Multiple Treatment Assignment / Sebastian Olivier Schneider ; Gutachter: Marcela Ibanez, Martin Schlather, Stephan Klasen ; Betreuer: Marcela Ibanez“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1149954671/34.

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15

Maxwell, Sophia Adrene. „Iban migration tradition, or a result of modernization /“. Title page, contents and abstract only, 1990. http://web4.library.adelaide.edu.au/theses/09AR/09arm465.pdf.

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16

Pavera, Michal. „Automatizace a řízení depozice multivrstev metodou IBS/IBAD“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229818.

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This diploma thesis deals with the automation of the deposition process by ion beam sputtering and ion beam assisted deposition. This work contains drawings of mechanical adjustments of the deposition chamber designed to control shutter and rotation of the target using stepper motors. There are presented ways to control stepper motors and troubleshoot their exact settings. Another task is to design a system for computer control of the deposition process. There are discussed ways to control the ion sources, pressure meter, flow meter and thickness meter, and their connection to a PC via RS-232 and analog-digital converters. It is also designed control program in LabVIEW, which allow automated multilayer deposition. Last part of the thesis deals with testing automatic deposition and results are commented.
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Ishak, Ricardo Guimarães. „iBang: os paradigmas da informação quântica e seus efeitos complexos no campo da comunicação“. Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/27/27152/tde-05032013-145641/.

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A presente dissertação apresenta um levantamento bibliográfico de alguns dos principais autores que analisam as possíveis fronteiras de diálogo entre a evolução das tecnologias de informação entre os séculos XX e XXI, com destaque para as descobertas no campo da física quântica aplicadas à informação e à computação, em busca do entendimento crítico desse universo de interdisciplinaridade para traçar, a partir da perspectiva dos estudos da comunicação, possibilidades a partir da construção de um processador quântico e o conseqüente surgimento de uma rede quântica de computadores, baseada em princípios multiversais, epistemológicos e evolutivos. Para tanto, pretendeu demonstrar tudo no Universo como informação, apontando os principais sintomas supermodernos que caracterizam a transição do Pós-Humano rumo a uma nova epistemologia, e fazendo uma releitura dos principais dilemas comunicacionais \"tautistas\" já sob um novo prisma, de acordo com os três rios propostos pelo Prof. Dr. Eugênio Bucci: evolução, linguagem e capital.
This dissertation presents a bibliography of some of the main authors which analyze the possible boundaries of dialogue between the evolution of information technologies from 20th to 21st Century, highlighting the discoveries in quantum physics applied to information and computing, in search of critical understanding of this interdisciplinarity universe to plot, under the perspective of communication studies, possibilities once a quantum processor is built and the consequent emergence of a quantum computers network, based on multiversal, epistemological and evolutionary principles. Therefore, we have intended to show everything in the universe as information, pointing the main hypermodern symptoms that characterize the transition from Post-Human towards a new epistemology, and making a reinterpretation of the main \"tautistic\" communication dilemma, according to the three rivers proposed by Prof. PhD. Eugenio Bucci: evolution, language and capital.
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18

Milloni, Serena <1977&gt. „La Spagna contadina e proletaria a confronto nelle opere di denuncia di Vicente Blasco Ibanez e Pio Baroja“. Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1527/1/LA_SPAGNA_CONTADINA_E_PROLETARIA_A_CONFRONTO_NELLE_OPERE_DI_DENUNCIA_DI_VICENTE_BLASCO_IB%C3%81%C3%91EZ_E_P%C3%8DO_BAROJA.pdf.

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19

Milloni, Serena <1977&gt. „La Spagna contadina e proletaria a confronto nelle opere di denuncia di Vicente Blasco Ibanez e Pio Baroja“. Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1527/.

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20

Davison, Julian. „Images and metaphor : an analysis of Iban collective representation“. Thesis, SOAS, University of London, 1987. http://eprints.soas.ac.uk/28939/.

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The Iban of Sarawak, East Malaysia, are the inhabitants of a vast equatorial rain forest which not only plays a crucial role in satisfying their material needs, but also provides them with a rich source of imagery for the portrayal of key cultural concerns and social values. That is to say, one finds that Iban collective representations are characterized by a profusion of floral and botanical forms, while the ritual use of plants features strongly in Iban religious life. Often these 'sacred' and 'profane' aspects of the plant world coincide, as in the case of Iban rice farming which both provides them with their staple diet, and at the same time is imbued with a deeply religious significance. The primary interest of this study, then, lies in its examination of the special relationship between man and plant in Iban culture. The research is based on library materials and takes, as its epistemological starting point, the idea that an understanding of metaphor can be usefully employed in the interpretation of symbolic phenomena. This approach works on two levels. On the one hand, there is the idea that a systematic examination of recurrent metaphorical forms - be they expressed in mythological narrative, ritual imagery, or everyday language - can be linked to dominant cultural values and social orientations. On the other hand, there is also the idea that a theory of metaphor - as developed in the field of literary criticism and semantics - can provide valuable insight into the way in which so-called 'symbolic phenomena' are 'actualized', or 'understood', by those for whom they operate. In the last instance, the study seeks to transcend the formal strictures of conventional structural analysis by suggesting ways in which the elaborate structures that are revealed by the latter are actually realized, or at least represented, in daily life - whether it be in the rarefied atmosphere of a religious ceremony or the more mundane setting at some commonplace activity. In doing so, the study raises a number of issues that are of a metaphysical nature - among them the question of indigenous notions of causation - thereby providing not just simply a re-evaluation of the existing ethnographic record, but also a point of departure for future inquiries in the field.
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21

McFadden, Audrey. „Ibant obscuri sola sub nocte per umbram : la quatrième fonction dumézilienne dans les récits catabatiques“. Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/28849/28849.pdf.

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22

Ibanez-Mejia, Juan Camilo [Verfasser], und Ralf S. [Akademischer Betreuer] Klessen. „Formation and Evolution of Molecular Clouds in a Turbulent Interstellar Medium / Juan Camilo Ibanez-Mejia ; Betreuer: Ralf S. Klessen“. Heidelberg : Universitätsbibliothek Heidelberg, 2016. http://d-nb.info/1180615921/34.

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23

Ibanez-Mejia, Juan Camilo Verfasser], und Ralf S. [Akademischer Betreuer] [Klessen. „Formation and Evolution of Molecular Clouds in a Turbulent Interstellar Medium / Juan Camilo Ibanez-Mejia ; Betreuer: Ralf S. Klessen“. Heidelberg : Universitätsbibliothek Heidelberg, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:16-heidok-215190.

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24

Ali, Ghazoan. „Substance and things : dualism and unity in the early Islamic cultural field“. Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/3591.

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The purpose of this study is to sample a number of disparate texts from the early Islamic cultural field to explore the shared grounds or themes that bind them together. The focus of the sampled texts and their analysis is the different relations between God and the real things of this world. The method that is applied in the selection of the texts of this research relies on Pierre Bourdieu’s approach to the study of cultural production. It assumes a relational and dynamic intellectual field which creates interlinked differences and similarities. This is the reason for sampling texts which are assumed to be reasonably marginal to the main cultural establishment. The kalām of the early stage, exemplified by the texts of the Zaydī al-Qāsim al-Rassī and the eastern Ibādīs, is found to emphasise the radical separation between the creator and the created. The development of this relation, which is explored through an intertextual reading of Qurʾānic exegesis, bridges the fissure, between creator and created, through the process of re-interpreting the terms of creation. The act of creation itself becomes an act of transformation, and the objects of creation become eternal ‘non-existent things’ that acquire the quality of existence. In the philosophical works of Jābir Ibn Ḥayyān, the things of this world are also reduced to transformations within the one substance that encompasses the intelligible and the material world. The results of this research show that there is a great degree of diffusion of ideas in this early stage of Islamic culture, from an assumed centre to the margins, and vice versa. The general tendencies in the texts considered reflect, on the one hand, a critique of multiplicity of principles, particularly dualism, and an emphasis on God’s unity, through different interpretations of tawḥīd. On the other hand, the sought unity itself established God’s radical transcendence from the real world, thus leading to another form of dualism dividing the world and the absolute other. The process of opposition to dualism seems to have eventually produced two forms of affirming and defining unity. Both forms define the existent things in terms of substance (jawhar), however, the kalām model expresses it in atomistic terms whilst the alchemical model of Jābir expresses it in terms of a hylomorphic model. One of these redefines the meanings of the existent and the non-existent things in term of subsistence, and the other, develops the idea of a single substance with different gradation in being.
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Hattori, Yocefu. „Estudo da cristalinidade de filmes finos de nitreto de índio e simulado pelo pacote de programas Wien2k“. Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-31052016-141339/.

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Neste trabalho, foi utilizado o método de deposição assistida por feixe de íons (IBAD na sigla em inglês) para produção de filmes finos de nitreto de índio em substratos de silício (111) e Safira-C. Variando as condições de deposição e utlilizando a técnica de difração de raios-X, investigou-se com o intuito de obter os parâmetros que resultam em filmes finos com melhor grau de cristalinidade. Os filmes produzidos a 380C apresentaram alta cristalinidade, superior àqueles a 250C. Temperaturas muito superiores a 380C não ocasionam a formação de filme cristalino de InN, como foi observado ao utilizar a temperatura de 480C; o mesmo se observa ao utilizar temperatura ambiente. Na temperatura considerada adequada ,de 380C, obteve-se que a utilização de Ra, ou seja, a razão de fluxo de partículas entre o nitrogênio e índio, em torno de 2,3 permite obter um melhor grau de cristalinização, o qual decresce conforme se diverge desse valor. A comparação entre difratogramas de amostras produzidas com e sem a evaporação prévia de titânio, o qual é possível observar um deslocamento dos picos do InN, indicam que o efeito Gettering permite a redução de impurezas no filme, principalmente de oxigênio. Utilizou-se a técnica de Retroespalhamento de Rutherford para obtenção da composição dos elementos e o perfil de profundidade. Notou-se uma forte mistura dos elementos do substrato de silício e safira com o nitreto de índio mesmo próximos a superfície. A presença indesejável de impurezas, principalmente o oxigênio, durante a deposição de filmes finos é praticamente inevitável. Desta forma, cálculos ab initio baseados na Teoria do Funcional da Densidade (DFT) foram realizados para investigar defeitos isolados e complexos de oxigênio no nitreto de índio e a sua influência nas propriedades óticas. Considerou-se diferentes concentrações de oxigênio (x=2,76, 8,32, 11,11 e 22,22%) aplicando-se o método PBEsolGGA e TB-mBJ para o tratamento da energia e potencial de troca e correlação. Obteve-se que é energeticamente favorável o oxigênio existir principalmente como defeito carregado e isolado. Os resultados utilizando a aproximação de TB-mBJ indicam um estreitamento do bandgap conforme a concentração de oxigênio aumenta. Entretanto, a alta contribuição do efeito de Moss-Burstein resulta num efetivo alargamento do band gap, gerando valores de band gap ótico maiores que no do bulk de nitreto de índio.
In the present work, the ion beam assisted deposition (IBAD) method was used for the production of thin films of indium nitride in silicon (111) and sapphire (001) substrates. Through variation of deposition conditions and by using X-ray diffraction technique, the parameters which resulted in thin films with the best crystallinity were investigated. The film produced at 380C showed good crystallinity, which was better than the one produced at 250C. Temperatures much higher than 380C doesn\'t lead to the formation of crystalline films of InN; the same is observed by using room temperature. In the temperature of 380C considered as adequate, it was obtained that using Ra, that is, the flux ratio of nitrogen and indium, around 2.3 allows getting a better crystallinity, which decreases as deviates from this value. The comparison between diffractograms of samples produced with and without the previous titanium evaporation, where a dislocation of indium nitride peak was observed, indicates that the Gettering effect reduces the impurities on the films, especially oxygen. The Rutherford Backscattering technique was applied in order to obtain the elements composition and the depth profile. It was noticed a strong mixture between substrates elements with the indium nitride even close to the surface. The presence of unintentional impurities, mainly oxygen, are almost inevitable during thin films deposition. Thus, Density Functional Theory based on \\textit calculations was employed to investigate single and complex defects of oxygen in Indium Nitride and their influence on the optical properties. Different oxygen contents (x=2.76, 8.32, 11.11 and 22.22%) were considered in our study by using PBEsolGGA and TB-mBJ for the treatment of exchange-correlation energy and potential. It was found that oxygen is energetically favorable to exist mainly as singly charged isolated defect. The results using TB-mBJ approximation predicts a narrowing of the bandgap as oxygen content increases. Nevertheless, the larger contribution of the Moss-Burstein effect leads to an effective band-gap increase, yielding absorption edge values larger than that of the intrinsic bulk indium nitride.
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Negrete, García Ana Karen [Verfasser], Jann [Akademischer Betreuer] Lay, Sebastian [Gutachter] Vollmer und Marcela [Gutachter] Ibanez. „Microenterprise Performance and Economic Development: Evidence from Mexico / Ana Karen Negrete García ; Gutachter: Sebastian Vollmer, Marcela Ibanez ; Betreuer: Jann Lay“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1136785205/34.

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Negrete, Garcia Ana Karen [Verfasser], Jann [Akademischer Betreuer] Lay, Sebastian [Gutachter] Vollmer und Marcela [Gutachter] Ibanez. „Microenterprise Performance and Economic Development: Evidence from Mexico / Ana Karen Negrete García ; Gutachter: Sebastian Vollmer, Marcela Ibanez ; Betreuer: Jann Lay“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1136785205/34.

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28

Grosch, Kerstin [Verfasser], Marcela [Akademischer Betreuer] Ibanez, Claudia [Gutachter] Keser und Oliver [Gutachter] Mußhoff. „Essays in Behavioral Labor Economics : Experimental Evidence from Germany and Ghana / Kerstin Grosch ; Gutachter: Claudia Keser, Oliver Mußhoff ; Betreuer: Marcela Ibanez“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1145292275/34.

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AL-Ibadi, Basim Ibrahim Hasan [Verfasser]. „Avian borna virus in psittacine birds : viral distribution, tropism and immune response / Basim Ibrahim Hasan AL-Ibadi“. Gießen : Universitätsbibliothek, 2016. http://d-nb.info/1081897791/34.

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Firesheets, Nathan. „Modeling the transmission loss of typical home constructions exposed to aircraft noise“. Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/50133.

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Current aircraft noise guidelines are based primarily on outdoor sound levels. However, human perception is highly related to indoor response, particularly for residences. A research project has been conducted that provides insight into how typical residential dwelling envelopes affect sound transmitted indoors. A focus has been placed on the effect of residential dwelling envelopes on subsonic civil aircraft noise. Typical construction types across the United States have been identified and used to develop model predictions of outdoor-to-indoor transmission loss. While it was initially hypothesized that these construction types could be grouped by climate region, it was found that these constructions are better grouped according to their outermost construction layer. Further, the impact of systematically altering construction variables (such as the construction materials used and the ratio of window area to wall area) has been investigated. Results will be used to better understand trends for expected noise reduction for typical construction types around the United States. Additionally, comparisons have been made between the effect of older and more modern wall construction techniques on whole-house performance.
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Patterson, Katherine-Anne V. Wadley Reed L. „Patterns of local mobility in an Iban community of West Kalimantan, Indonesia“. Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/5748.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on October 2, 2009). Thesis advisor: Dr. Reed Wadley. Includes bibliographical references.
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Jong, Sze Joon. „Iban Ajat: Digitisation framework for the conservation of a Sarawak traditional dance“. Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/233171/1/Sze%20Joon_Jong_Thesis.pdf.

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Sarawak Iban's cultural heritage is endangered. Therefore the conservation of its traditional dances is imperative. This study aims to demonstrate how a hybridised research strategy is essential for the conducting of culturally sensitive preservation. My research centres on applications of Motion Capture technology, for the leveraging of observations of the Ajat Dance – through a focus on elemental gyrational manoeuvres. My study does not claim to be a 'panacea'. Rather it showcases the importance of acquiring and incorporating digital oeuvres into one's documentary practices. Through its proof-of-concept involving a 3D simulation, I offer a digitisation framework for delivering decolonised cultural preservation.
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Souza, Danilo Olzon Dionysio de. „Propriedades optoeletrônicas de interfaces híbridas metal/semicondutor orgânico preparadas por deposição assistida por feixe de íons (IBAD)“. Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-04102011-150853/.

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Neste trabalho foram estudadas as propriedades optoeletrônicas de dispositivos orgânicos emissores de luz (OLEDs) à base de polímeros conjugados possuindo catodos metálicos depositados por meio da técnica de deposição assistida por feixe de íons (IBAD). O principal objetivo do trabalho é produzir uma interface híbrida metal/polímero não abrupta e estudar os seus efeitos na injeção de elétrons. O uso da técnica IBAD em eletrônica orgânica é incipiente, sendo este o primeiro trabalho no Brasil aplicando-a em eletrônica orgânica. Diversos experimentos exploratórios foram feitos para adequar o uso da técnica a esta nova aplicação. Os dispositivos OLEDs possuem estrutura vertical que consiste de um anodo transparente de óxido de estanho índio (ITO) depositado sobre substrato de vidro; de uma camada transportadora de buracos de Poli (3,4-etilenodioxitiofeno): Poli (estirenosulfonato) (PEDOT:PSS) e de uma camada ativa de polifluoreno (PFO). O catodo de alumínio foi depositado sobre o PFO, utilizando a técnica IBAD, utilizando íons de argônio com energia variando de 0 a 1000eV. Simulações utilizando o código TRIM (Transport of Ions in Matter) foram feitas para avaliar a penetração do Al na camada polimérica, bem como o deslocamento atômico durante o processo IBAD. Medidas de microscopia de fluorescência, fotoluminescência (PL) e espectroscopia Raman foram utilizadas para caracterizar os efeitos dos íons sobre a camada polimérica. As propriedades da interface híbrida foram estudadas variando-se a espessura da camada ativa emissora de luz e introduzindo camadas espaçadoras de polieletrólitos inertes entre o catodo metálico e o PFO. Íons com energia maior que 400 eV produzem a diminuição das propriedades luminescentes do polímero. Por fim, as propriedades de injeção eletrônica do catodo foram estudadas através de medidas de corrente e eletroluminescência em função da voltagem. Os resultados mostraram que houve um expressivo deslocamento da voltagem de injeção (Von) para íons de argônio com energias variando entre 0 e 400 eV. As curvas de corrente versus voltagem são descritas pelo modelo Fowler- Nordheim e possuem características alteradas pelo processo IBAD. Medidas de luminescência e de corrente versus voltagem sugerem a formação de uma interface contendo nanopartículas metálicas isoladas espalhadoras de luz para energias dos íons de argônio entre 0 e 80 eV. Estas nanopartículas favorecem a injeção para campos elétricos menores. A melhora no contato entre o polímero e o catodo é observada e é consistente com a redução de caminhos preferenciais durante a injeção de elétrons, o que minimiza problemas relacionados à eficiência e durabilidade dos OLEDs.
In this work, optoelectronic properties from organic light emitting devices (OLEDs), based on conjugated polymers with metallic cathode, which were deposited by ion beam assisted deposition technique (IBAD) were studied. The main objective of this work is to produce a hybrid non abrupt metal/polymer interface and to study its effects on electron injection. The use of this technique in organic electronics is incipient, being used in Brazil for the first time. Several exploratory experiments were made, to suit this technology to this new application. The OLEDs devices have a typical vertical-architecture, using Indium Tin Oxide (ITO) covered glass substrate as transparent anode; Poly [ethylene-dioxythiophene]: Poly [styrene sulfonic acid] (PEDOT:PSS) as hole transport layer and polifluorene (PFO) as emitting layer. The cathode layer were deposited over the PFO using IBAD with aluminum and Ar ions, with energies in the range from 0 to 1000 eV. Computer simulations using TRIM code (Transport of Ions in Matter) were done to evaluate the Al penetration into the polymer and the atomic displacement during IBAD process. Fluorescence microscopy, photoluminescence (PL) and Raman spectroscopy were used to study the effects of ions on the polymer layer. The hybrid interface properties were studied with the variation of the active layer thickness and introducing spacing layers of inert polyelectrolyte between the metallic cathode and the PFO. Ions with energy above 400eV decrease polymer electroluminescent properties. Finally, electron injection properties of the cathode were studied using Current Voltage and Electroluminescent measurements. The results show that lower Ar+ ion energies (between 0 and 400 eV) cause a significant shift on the injection voltage. The Current Voltage curves, whose characteristics are modified by IBAD, are described by Fowler Nordheim model. These measurements suggests that Ar+ ion energies between 0 and 80 eV promote the formation of an interface that contains isolated metallic nanoparticles, which may scatter the light. These nanoparticles ease the injection for lower electric fields. The enhancement of the contact between polymer and cathode is observed and is consistent with the reduction of preferred paths during electron injection, which minimizes the problems related to OLEDs efficiency and durability.
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Freudenreich, Hanna [Verfasser], Oliver [Akademischer Betreuer] [Gutachter] Musshoff, Marcela [Gutachter] Ibanez und Matin [Gutachter] Qaim. „Risk, Insurance and Technology Adoption in Rural Development - Evidence from Southern Mexico / Hanna Freudenreich ; Gutachter: Oliver Musshoff, Marcela Ibanez, Matin Qaim ; Betreuer: Oliver Musshoff“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://d-nb.info/1136131574/34.

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Henning, Karla [Verfasser], Stephan [Akademischer Betreuer] Klasen, Michael [Gutachter] Grimm und Marcela [Gutachter] Ibanez. „Essays on Social Preferences in the Contexts of Donations, Migration, Religious Worship and Insurance / Karla Henning ; Gutachter: Michael Grimm, Marcela Ibanez ; Betreuer: Stephan Klasen“. Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://d-nb.info/1177361817/34.

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Franke, Maik. „Managementtool für InfiniBand“. Thesis, Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200500063.

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Ibald, Caroline [Verfasser], und Wolfang [Akademischer Betreuer] Locher. „Die Entwicklung und Normierung der Wiederbelebungsmaßnahmen seit dem Tode König Ludwigs II. 1886 bis zur Gegenwart / Caroline Ibald ; Betreuer: Wolfang Locher“. München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2018. http://d-nb.info/1162443405/34.

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38

Hühne, Ruben. „Textur- und Mikrostrukturentwicklung bei der ionenstrahlunterstützten Laserdeposition von MgO“. Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2001. http://nbn-resolving.de/urn:nbn:de:swb:14-1008666375984-75142.

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In dieser Arbeit wurde die Textur- und Mikrostrukturentwicklung von MgO bei der ionenstrahlunterstützten Laserdeposition auf amorphen Substraten untersucht. Das Wachstum der Schichten wurde in-situ mit Hilfe der hochenergetischen Elektronenbeugung verfolgt. Eine Auswertung der Beugungsaufnahmen ermöglicht qualitative und quantitative Aussagen zur Texturausbildung während des Wachstums. Anschließend erfolgte eine Charakterisierung mit Röntgenmethoden, mit dem AFM und dem REM. Zur Untersuchung aktiver Mechanismen wurden ergänzende Experimente an MgO-Einkristallen durchgeführt. Bei der Abscheidung von MgO auf amorphen Substraten ohne Ionenstrahlunterstützung können zwei Temperaturbereiche unterschieden werden. Unterhalb von 250°C entwickelt sich aus einer amorphen Keimschicht eine &lt;110&gt;-Fasertextur. Oberhalb dieser Temperatur wird in der Keimbildung eine &lt;100&gt;-Fasertextur beobachtet. Mit wachsender Schichtdicke führt ein Texturwechsel zu einer &lt;111&gt;-Fasertextur. Als treibende Kraft für diesen Prozeß werden innere Spannungen angesehen. Bei Verwendung eines unterstützenden Ionenstrahls findet eine orientierte Keimbildung statt, bei der biaxiale Texturen in einer Schichtdicke unterhalb von 10 nm ausgebildet werden. Unterhalb von 250°C werden Texturkomponenten mit einer &lt;100&gt;-Richtung parallel zum Ionenstrahl bevorzugt. Oberhalb dieser Schwellentemperatur wurde bei einem Ioneneinfallswinkel zwischen 35° und 55° und Ionenenergien zwischen 400 und 800 eV eine Würfeltextur mit einer &lt;110&gt;-Richtung parallel zum Ionenstrahl auf verschiedenen amorphen und glatten Substraten gefunden. Der optimale Ioneneinfallswinkel liegt bei einem Winkel von 45°, wobei Würfeltexturen mit in-plane Halbwertsbreiten von &lt; 21° erreicht. Ursache für die in-plane Texturierung ist eine anisotrope Sputterrate, die bei Experimenten an MgO-Einkristallen gefunden wurde. Ein Vergleich mit molekulardynamischen Simulationen zeigt, daß entlang der &lt;110&gt;-Richtung ein Channeling möglich ist. Da in diesem Temperaturbereich die &lt;100&gt;-Richtung parallel zur Substratnormalen thermodynamisch bevorzugt ist, werden auf Grund des Channeling Keime mit einer &lt;110&gt;-Richtung parallel zum Ionenstrahl weniger gestört als anders orientierte Körner und dominieren so die Oberflächentextur. Oberhalb einer Schichtdicke von ca. 5 nm wird eine Texturänderung beobachtet, die zu Komponenten mit einer &lt;100&gt;-Richtung parallel zum Ionenstrahl führt und für die die starke Anisotropie der Sputterrate verantwortlich gemacht werden kann. In Experimenten an Einkristallen wurde das Minimum der Sputterrate für eine Ausrichtung der &lt;100&gt;-Richtung parallel zum Ionenstrahl gefunden. Auslöser für die Texturänderung ist der Einbau von Defekten auf Grund der Ionenstrahlunterstützung. Dadurch entstehen Subkörner mit einer breiten out-of-plane Orientierungsverteilung, aus denen über eine sputterbedingte Wachstumsauslese Körner mit einem minimalen Winkel zwischen Ionenstrahl und &lt;100&gt;-Richtung bevorzugt werden. Diese Argumentation wird zusätzlich durch eine beobachtete Zunahme von Korngröße und Rauhigkeit gestützt. Um dickere, würfelorientierte Schichten zu erhalten, muß die Keimschicht epitaktisch weitergewachsen werden. Voruntersuchungen an Einkristallen zeigten, daß mit PLD eine Homoepitaxie ab einer Temperatur von 300°C möglich ist. Allerdings wurde bei der Deposition auf würfelorientierten MgO-Keimschichten ein Texturwandel zu &lt;111&gt;-Fasertexturen beobachtet. Als Ursache kommen Spannungen oder eine schlechter Bedeckungsgrad der würfelorientierten Bereiche in Frage. Die epitaktische Deposition anderer Oxide führte nicht zum Erfolg. Das auf die MgO-Keimschicht direkt deponierte YBCO wies dagegen eine biaxiale Textur mit einer Halbwertsbreite von ca. 40° auf. In Vergleichsexperimenten mit TiN wurde in der Keimbildung ebenfalls eine Würfelorientierung gefunden. Dies weist darauf hin, daß die beobachteten Mechanismen der Texturentwicklung auf andere Substanzen mit NaCl-Struktur verallgemeinert werden können.
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Magri, Pedro Henrique Rodrigues. „A INTERFERÊNCIA NORTE AMERICANA NA IMPRENSA GOIANA: UM ESTUDO DE CASO DAS ELEIÇÕES DE 1962“. Pontifícia Universidade Católica de Goiás, 2018. http://tede2.pucgoias.edu.br:8080/handle/tede/3948.

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The present dissertation which is subscribed under the research area of Identity, Tradition and Territoriality of the History Post-Graduation Program of PUC Goiás, aims at developing new arguments which reinforce the theses widely disseminated by Renè Dreifuss and Carlos Fico about the fundamental North American participation in the preparation of the Brazilian political scenario in the years preceding the Military Coup of 1964. For such task, we intent to analyze news and columns presents in the press form of Goiás State: Revista da Arquidiocese, Brasil Central and Folha de Goyaz. By means of a study of case, we intent to show how IBAD support some candidates to increases the opposition of João Goulart’s government, thought of the elections of 1962, to ensure the north american interests in Brazil.
A presente dissertação, inscrita na linha de pesquisa Identidade, Tradição e Territorialidade do Programa de Pós-Graduação em História da PUC Goiás, pretende construir novos argumentos que reforçam as teses amplamente difundas por Renè Dreifuss e Carlos Fico sobre a fundamental participação norte-americana na preparação do cenário político brasileiro nos anos que antecederam o golpe civilmilitar de 1964. Para tal tarefa, pretendemos analisar reportagens e colunas presentes nos veículos de comunicação impressa do Estado de Goiás durante o ano de 1962: Revista da Arquidiocese, jornal Brasil Central e jornal Folha de Goyaz, mostrando através de um estudo de caso, como a imprensa goiana, por meio do IBAD, apoiou diversos candidatos aos principais cargos do poder legislativo a nível federal, estadual e municipal, com o intuito de ampliar a base de oposição ao governo de João Goulart durante as eleições de 1962, garantindo, desta forma, a manutenção dos interesses norte-americanos no país.
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Novák, Jakub. „Depozice Ga a GaN nanostruktur na křemíkový a grafenový substrát“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443760.

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The thesis is focused on the study of properties of GaN nanocrystals and Ga structures on the surface of silicon and graphene substrate. In the theoretical part of this thesis, the basic properties of Ga/GaN and graphene are described, as well as their applications or connection of both structures together in different devices. The ability of metal nanoparticles to enhance not only photoluminescence, due to the interaction of the material with surface plasmons, is also shown in several examples. The experimental part of the work first deals with the production and characterization of graphene sheets prepared by Chemical Vapor Deposition. Ga/GaN growth on both types of substrates was performed in a UHV chamber using an effusion cell for Ga deposition and an atomic ion source for nitridation. Prepared structures were characterized using various methods (XPS, SEM, AFM, Raman spectroscopy or photoluminescence). In the last step, GaN nanocrystals were coated with Ga islands to study the photoluminescence enhancement.
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Berma, Madeline. „The commercialisation of handicraft production among the Iban of Kapit division in Sarawak, Malaysia : constraints and potential“. Thesis, University of Hull, 1996. http://hydra.hull.ac.uk/resources/hull:4923.

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This study is concerned with Iban involvement in commercial handicraft production (CHP). Its aim has been to examine the possibilities of employment expansion through small-scale rural industrialisation in Sarawak, Malaysia and to discuss differential Iban involvement and "success" in CHIP. The pertinent questions are: why do some Iban craftspersons take up CHP, while others do not; and under what conditions do Iban craftspersons succeed in CHIP? By undertaking this research, it is hoped to establish whether rural industrialisation based on craft production is "desirable" and 'feasible" for the rural Iban. Survey methods were employed from 200 Iban craftspersons from 10 longhouses in Kapit Division, Sarawak supported by participant observation in addition to in-depth interview with government personnel and selected entrepreneurs (such as tour operators, Chinese towkays). The thesis argues for a reinterpretation of Iban economic history because previous research on the Than economy has tended to ignore Iban involvement in non-agricultural activities, particularly in commercial activities. Although the Iban have become increasingly oriented to the market, there has been very little attention to the evolving landscape of the Iban economy. The study shows that Iban involvement in commercial activities does not occur in linear evolutionary phases; it is a variable and fluid response to changes in the social, economic, cultural and political environment. The study also shows that CI-[P provides the rural Iban with employment and income earning opportunities which, in turn enables them to sustain their livelihood whilst regenerating interest in Iban culture. Some craftspersons have succeeded in CHIP and have even managed to market their products beyond their local region. The majority, however, have been unable either to initiate, or once involved, to survive in CHIP because of constrains identified in marketing, availability of raw material, capital, labour, lack of entrepreneurship and institutional support, and certain cultural obstacles. Despite these problems, the majority of those Iban surveyed are willing to take up CHIP in the future suggesting that there is potential for the development of rural industrialisation in Sarawak. This study is a first step towards understanding the nature, extent and effects of Iban involvement in commercial activities, which is a neglected subject in development studies in Malaysia and the interplay of factors that promote or hinder their role in economic development.
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Shin, Layoung. „Teenage female iban in South Korea gender and sexual identity formed by performance of fan-costume-play /“. Diss., Online access via UMI:, 2009.

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Mach, Jindřich. „Vývoj a aplikace UHV zařízení pro depozice tenkých vrstev (Atomární a iontové svazkové systémy)“. Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-233933.

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In the thesis the development of two equipment for preparation of ultrathin films under ultrahign vacuum conditions (UHV) is discussed. Here, additionally to a brief description of theoretical principles, more details on the design of these units are given. In the first part the design of a thermal source of oxygen or hydrogen atomic beams is discussed. Further, a design and construction of an ion–atomic beam source for ion-beam assisted deposition of thin films is detailed. The source combines the principles of an efusion cell and electron-impact ion beam source generating ions of (30 – 100) eV energy. The source has been successfully applied for the growth of GaN on the Si(111) 7x7 substrate under room temperature.
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Postill, John Raymond. „Borneo again : media, social life and the making of a national subculture among the Iban of Malaysian Borneo“. Thesis, University College London (University of London), 2000. http://discovery.ucl.ac.uk/1382006/.

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This study examines the social and political significance of media among the Iban of Sarawak, in Malaysian Borneo. It is intended to contribute both to the ethnographic literature on the lban and to a neglected field of inquiry of key theoretical and practical importance: the anthropological study of media. The thesis is divided into seven chapters. The first chapter introduces the problem by critically reviewing the relevant literature from social anthropology and media studies. The second chapter deals with the production side of modern media from an historical perspective. The production of a modern lban identity through radio and print media in the 1 960s was superseded in the 1970s by a more vigorous rival project supported through television and textbooks: the creation of a Malaysian national culture. The third chapter explores the 'social life and afterlife' of television sets in the Saribas region as they enter into the gift and exchange systems that bind the living and the dead, including burial rites at which television sets are destroyed. This approach reveals growing wealth disparities in rural Sarawak as well as culture-specific ways in which media artefacts are appropriated and disposed of. Chapter Four analyses the critical role of radio, television, public-address systems and other media in the organisation of social time and space in Saribas longhouse communities. I argue that these media help local people to routinely naturalize clock and calendar time both in their daily and festive lives. Chapter Five focuses on the relationship between media practices and the local Saribas ideology, or 'ideolect'. A close examination of school essays, public-address speeches and television commentary reveals a consistent set of developmentalist ideas cutting across these diverse practices. Chapter Six compares and contrasts the findings from the Saribas area (chapters 3-5) with those from a more remote region, the Skrang. I stress the importance of indigenised Christian prayer books in providing recent converts with tools with which to make sense of troubling reports from television and radio, notably news of war, famine and the spread of infectious diseases. Chapter Seven is a summary and conclusion.
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Victoria, Bariani Nelson Mario. „Estudo das propriedades físicas de nitreto de carbono amorfo obtido por deposição assistida por feixe de íons (IBAD)“. [s.n.], 2000. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277726.

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Orientador: Fernando Alvarez
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Fisica "Gleb wataghin"
Made available in DSpace on 2018-07-27T01:57:09Z (GMT). No. of bitstreams: 1 VictoriaBariani_NelsonMario_D.pdf: 1665987 bytes, checksum: 5d65095fcad002b22f78e84f8f200cee (MD5) Previous issue date: 2000
Resumo: Considero que este trabalho contribui na interpretação coerente de resultados espectroscópicos de XPS, UPS, IR, Raman e UV-VIS de um conjunto de mais de 80 filmes de a-C, a-C:H, a-CNxe a-CNx:H depositados por deposição assistida por feixe de íons (IBAD). A variação controlada de parâmetros como a [N], [H], temperatura, corrente e energia de íons incidentes, e pressões parciais dentro da câmara de deposição permitiu correlacionar estes parâmetros com variações na estrutura dos filmes obtidos evidenciadas nos espectros medidos. Também contribuiu a identificar para o material a-CNxa existência de uma mudança de estrutura para [N] ao redor de 20%, passando de um material duro, condutor, opaco e denso a outro mais mole, isolante, transparente e poroso. Se associou claramente esta mudança com o predomínio a baixa [N] de ambientes aromáticos planos, e o predomínio a altas [N] (>20 at.%) de ambientes não aromáticos fora do plano, com estrutura mais aberta e maior número de ligações terminais tipo C ºN. Se mostrou como os espectros XPS indicam claramente esta possibilidade, especificando componentes que apareciam confusas na literatura. Se desenvolveu uma explicação coerente dos espectros infravermelho e Raman para os materiais a-CNx e a-CNx:H, contribuindo para o esclarecimento dos equívocos encontrados na literatura a este respeito, motivados em parte pelo conhecido trabalho de Kaufman et al. Foram explicados também os efeitos devidos á presença de H nos filmes. O melhor conhecimento das características destes filmes auxilia para a implementação de eventuais aplicações
Abstract: I hope that this work contributes to a coherent interpretation of spectroscopic data from XPS, UPS, IR, Raman and UV-VIS spectra corresponding to more than 80 thin films of a-C, a-C:H, a-CNxand a-CNx:H deposited by ion beam assisted deposition (IBAD). The controlled variation of parameters as [N], [H], temperature, current and energy of the impinging ions and partial pressures inside the deposition chamber permitted to correlate this parameters with the modifications in the structure of the films, which became evident in the spectroscopic information. It also contributed to identify the existence of a structural change for a-CNx materials, that happens nearby a nitrogen concentration of 20 at. %, changing from a hard, conductive, dark and dense material to a soft, isolating, transparent and porous one. This changes were associated with a predominant presence of aromatic environments at low [N] and a predominance of out of plane, non-aromatic environments at high [N] (> 20 at. %), with a more opened structure, with the presence of terminal bondings like C º N. It was showed how the XPS spectra clearly indicate this possibility, identifying components that were obscurely interpreted in the literature. It was developed a coherent explanation for the infrared and Raman spectra of a-CNx and a-CNx:H materials, contributing to clarify some confusion encountered in the literature related to the interpretation and scope of Kaufman et al known work about symmetry breaking. The effects of the presence of H in the film were also explained. It is wished that a better understanding of the characteristics of these films could help on the implementation of useful applications
Doutorado
Física
Doutor em Ciências
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46

Pahlke, Patrick. „Wachstum, Pinningeigenschaften und Granularität von dicken YBa2Cu3O7-δ-Schichten auf texturierten metallischen Substraten“. Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-233720.

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In der vorliegenden Arbeit wurden Schichten des Hochtemperatursupraleiters YBa2Cu3O7-δ (YBCO) untersucht, die epitaktisch mittels gepulster Laserabscheidung auf texturierten metallischen Templaten abgeschieden wurden. Dabei kamen ionenstrahltexturiertes ABAD-YSZ-Band und walztexturiertes NiW-Band zum Einsatz. Für Anwendungen solcher sogenannten Bandleiter ist die Fähigkeit zum Transport möglichst hoher kritischer Ströme Ic essentiell. Dies kann durch das Wachstum möglichst dicker Schichten, eine Verbesserung der Flussschlauchverankerung (Pinning), sowie die Reduzierung der durch Korngrenzen verursachten Stromlimitierung erreicht werden. Im ersten Teil der Arbeit wurden strukturelle und supraleitende Eigenschaften in bis zu 5 µm dicken YBCO-Schichten auf ABAD-YSZ-Band untersucht. Dazu wurden neben nicht-fremdphasendotierten (undotierten) YBCO-Schichten auch BaHfO3- und BaY(NbTa)O6-dotierte YBCO-Schichten herangezogen. Die Untersuchungen erfolgten mittels Röntgenbeugungs-methoden (XRD), Rasterelektronen- und Rasterkraftmikroskopie (REM, AFM), sowie resistiver und induktiver Methoden zur Bestimmung der Sprungtemperatur Tc und der kritischen Stromdichte Jc. Schichtdickenabhängige Messungen konnten u. a. zeigen, dass Ic in undotierten YBCO-Schichten bei einer Dicke oberhalb von 2,8 µm nicht weiter anstieg, während Ic in den dotierten Schichten bis zu einer Dicke von 5 µm nicht limitiert war. Darüber hinaus konnte in temperatur- und feldabhängigen Jc-Messungen ein verbessertes Pinningverhalten bei tiefen Temperaturen und in hohen äußeren Magnetfeldern gefunden werden. Mit Hilfe von transmissionselektronenmikroskopischen Untersuchungen (TEM) und Messungen der Jc-Anisotropie wurde zusätzlich ein Strukturschema herausgearbeitet, das eine Verknüpfung von Herstellungsparametern, Mikrostruktur und Pinningeigenschaften ermöglicht. Der zweite Teil befasste sich mit der Analyse der Mikrostruktur und der lokalen Textur von undotierten YBCO-Schichten auf ABAD-YSZ- und NiW-Band. Die lokale Textur wurde dabei mittels Rückstreuelektronenbeugung (EBSD) aufgelöst. Die Ergebnisse wurden mit orts-aufgelösten Magnetisierungsmessungen (Raster-Hall-Sonden-Mikroskopie) korreliert, mit denen der lokale Stromfluss untersucht werden kann. Auf beiden Templaten zeigte sich eine granulare Struktur, die durch gegeneinander verkippte bzw. verdrehte YBCO-Körner gekennzeichnet war. Während die granulare Struktur auf ABAD-YSZ-Band durch hauptsächlich in-plane missorientierte YBCO-Bereiche mit einem Durchmesser < 1 µm charakterisiert war, konnten auf NiW-Band hauptsächlich out-of-plane missorientierte Bereiche mit einer typischen Größe von 20-50 µm nachgewiesen werden. Auf NiW-Band hing die YBCO-Mikrostruktur und die Schärfe der lokalen Textur von der individuellen out-of-plane Missorientierung des darunter-liegenden NiW-Korns ab, was auf eine bereits im unbeschichteten NiW-Band vorhandene Facettierung zurückgeführt werden konnte. Zu deren Beschreibung wurde ein Facettenmodel entwickelt, das durch TEM-Untersuchungen bestätigt werden konnte. Abschließend wurde auf einkristallinen Substraten und auf ABAD-YSZ-Band ein homogener Stromfluss nachgewiesen, während die supraleitenden Eigenschaften in YBCO-Schichten auf NiW-Band von der lokalen Mikrostruktur und Textur bestimmt wurden. Damit konnte gezeigt werden, dass die globalen Eigenschaften der Bandleiter vom Zusammenspiel eines über Korngrenzen miteinander verbundenen Ensembles von Körnern mit individuellen Eigenschaften bestimmt werden.
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Lacouture, Maryline. „Eugene sue et vicente blasco ibanez : deux hommes, deux oeuvres (le juif errant et la arana negra), deux expressions de l'anticlericalisme et d'une pensee republicaine au dix-neuvieme siecle en france et en espagne“. Toulouse 2, 1987. http://www.theses.fr/1987TOU20081.

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Le travail que nous proposons a pour point de depart l'etude comparative de deux oeuvres: le juif errant d'e. Sue, publie en feuilletons dans le constitutionnel de 1844 a 1845, et la arana negra de v. Blasco ibanez, roman par livraison dont le premier livret apparut a barcelone le 24 fevrier 1892. La critique moderne ayant souligne que l'ecrivain espagnol avait plagie son homologue francais, nous avons tenu a faire le point sur la question. A partir de ce postulat, plusieurs orientations se sont degagees. L'etude des deux romans nous per met d'approcher un genre litteraire tres marque d'un point de vue formel et stylistique, mais aussi d'un point de vue sociologique (le roman-feuilleton du 19eme siecle). Elle nous permet egalement d'aller au-dela du contenu des deux oeuvres et de considerer l'ideologie vehiculee ainsi que ses rapports avec le contexte politique du moment. La premiere partie de ce travail s'attache a un rappel biographique indispensable pour la comprehension de la formation litteraire et ideologique de sue et de blasco. La seconde partie nous a conduit a ef fectuer des recherches systematiques qui rendent compte de la forme des deux romans (publication et audience, titre et theme, structure, personnages, ecriture referentielle et didactique, un certain naturalisme dans la arana negra). En ce qui concerne la structure et les personnages, nous avons insiste sur les notions de typification et de dualisme moral qui caracterisent le feuilleton. La troisieme partie propose une vision plus large des deux oeuvres. Avant de considerer la philosophie religieuse propre aux feuilletonistes, nous avons etudie le contexte dans lequel ceux-ci ont evolue et, en tout premier lieu, les heritages ideologiques dont ils sont depositiaires a leur epoque. Ceci nous a conduit a donner une definition globale de l'anticlericalisme a un moment de l'histoire. Dans un deuxieme temps, nous avons insiste sur le contenu specifiquement jesuitophobe des feuilletons. Enfin, nous avons considere les attaques dirigees par les auteurs contre l'organisation politique et sociale de leur pays, pour en arriver a definir la philosophie politique de sue et de blasco (l'influence de charles fourier sur e. Sue et celle de francisco pi y margall sur v. Blasco ibanez)
The aim of the thesis is to present the comparative study of two works : le juif errant written by e. Sue, published as a serial in le constitutionnel from 1844 till 1845 and la arana negra written by v. Blasco ibanez, novel published in parts which first "entrega was published on february, 24th 1892 at barcelona. Modern critics have claimed that the spanish author had plagiarized his french counterpart, so we have chosen to shed light on this debate. This postulate has opened up a wide range of possibilities. The study of the two novels has given us a deeper understanding of this literary genre, so marked for his formal, stylistic and also sociological character (the serial novel of the 19th century); it also enables us to go beyond the content of the two works and to consider the ideology proposed as well as its relationship with the political context at the time. The first part of this thesis takes the form of a biography which is indispensable if one is to understand the literary and ideological development of sue and blasco. In the second part we have undertaken to research systematically the form of the two novels (publication and audience, titles and theme, structure, characters, referential and didactic writing, a certain naturalism in la arana negra). As far as the structure and the characters are concerned, we have stressed the notions of type classification and the moral dualism which characterize the 19th century part novel. The third part presents a wider vision of the two works. Before considering the serial writers own religious philosophy, we have studied the context in which they have evolved and first of all, the ideological heritages which they represented at their time. This has led us to give an severall definition of anticlericalism at a given time of history. We have then proceeded to stress the specifically anti-jesuites orientation of the two serials. Finally we have considered the authors' attack on the political and social organisation of their country in the aim of defining their political philosophy in their respective work(the influence of charles fourier upon e. Sue and that of francisco pi y margall upon blasco ibanez)
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48

Lacouture, Maryline. „Eugène Sue et Vicente Blasco Ibanez deux hommes, deux oeuvres, "Le Juif errant" et la "La Arana negra", deux expressions de l'anticléricalisme et d'une pensée républicaine au 19e siècle en France et en Espagne /“. Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37606820n.

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49

Hussain, Ishtiaq [Verfasser], Thomas [Akademischer Betreuer] [Gutachter] Nugent, Nikolai [Gutachter] Kuhnert und Ibad Muhammad [Gutachter] Farooq. „Site-selective intermolecular mono aldolization of prochiral diketone substrates / Ishtiaq Hussain. Betreuer: Thomas Nugent. Gutachter: Thomas Nugent ; Nikolai Kuhnert ; Muhammad Farooq Ibad“. Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2016. http://d-nb.info/111188448X/34.

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50

Santos, Thales Borrely dos. „Controle de propriedades de filmes finos de óxido de alumínio através da assistência de feixe iônico“. Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-03062017-212721/.

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Este trabalho tem por objetivo a caracterização de filmes finos de óxido de alumínio produzidos por deposição assistida por feixe de íons Ar+. Tal caracterização consiste em estabelecer a relação entre os parâmetros de produção (energia do feixe e uxo relativo de Ar), a composição e a estrutura dos lmes. Para tanto, utiliza-se técnicas de microscopia de força atômica, difração de raios-x, reetividade de raios-x e análise por feixe iônico. Resultados mostram que amostras produzidas à temperatura ambiente e à 450 oC são amorfas independentemente da energia do feixe iônico. Filmes formados com assistência de feixe possuem qualidade superior àqueles formados por deposição física de vapor. O bombardeamento de íons Ar+ mostra-se capaz de controlar a concentração de hidrogênio, a estequiometria, a rugosidade, o tamanho dos grãos e a densidade dos lmes nos. Amostras com excelente qualidade baixa rugosidade, estequiometria próxima da ideal e boa densidade foram produzidas utilizando íons com energia dentre 300 eV e 600 eV.
The scope of this work is the characterization of aluminum oxide thin films produced by Ar+ ion beam assisted deposition. This characterization consists in establishing the relationship between production parameters (ion beam energy and argon relative ux), structure and composition of these lms. In order to undertake this task, the following techniques were used: atomic force microscopy, x-ray diraction, x-ray reectivity and ion beam analysis. Results show that samples produced at room temperature and at 450 oC are amorphous regardless the ion beam energy. Films grown under ion assistance have better characteristics than the ones deposited by physical vapor deposition. The ion beam bombardment is capable of controlling hydrogen concentration, stoichiometry, roughness, grain size and density of alumina samples. High quality lms at surface and increased density lms with near ideal stoichiometry were produced with 300 eV and 600 eV ion beam energy.
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