Relevant bibliographies by topics / Detecteur cristal

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Detecteur cristal'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Detecteur cristal"

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Şahan, Mehmet Hamdi, Mikail Inal, Nuray Bayar Muluk, and Gökçe Şimşek. "Cribriform Plate, Crista Galli, Olfactory Fossa and Septal Deviation." Current Medical Imaging Formerly Current Medical Imaging Reviews 15, no. 3 (2019): 319–25. http://dx.doi.org/10.2174/1573405614666180314150237.

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Objectives: In the present study, we investigated the relationship between olfactory fossa, cribriform plate, crista galli and nasal Septal Deviation (SD). Keros classification of olfactory fossa was also performed. Methods: This study was performed retrospectively. Computerized Tomography (CT) images of 200 adult subjects were observed. Unilateral nasal Septal Deviation (SD) cases were included into the study. On coronal CT scans, SD side and location, SD angle, cribriform plate width, olfactory fossa depth (Keros classification) and width, area of the olfactory fossa, crista galli length, wi
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Huong, Pham V., Stéphanie Bouchet, and Jean-Claude Launay. "Cristal-growth dynamics of n-doped gaAs." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1544–45. http://dx.doi.org/10.1017/s0424820100132352.

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Microstructure of epitaxial layers of doped GaAs and its crystal growth dynamics on single crystal GaAs substrate were studied by Raman microspectroscopy with a Dilor OMARS instrument equipped with a 1024 photodiode multichannel detector and a ion-argon laser Spectra-Physics emitting at 514.5 nm.The spatial resolution of this technique, less than 1 μm2, allows the recording of Raman spectra at several spots in function of thickness, from the substrate to the outer deposit, including areas around the interface (Fig.l).The high anisotropy of the LO and TO Raman bands is indicative of the orienta
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Gómez B., Javier, Mariano Vela M., and Melchor Llosa D. "EVALUACIÓN DE LA DIMENSIÓN DE LA ZONA SENSIBLE DE UN DETECTOR SEMICONDUCTOR COAXIAL DE GeHP." Revista de Investigación de Física 7, no. 01-02 (2004): 76–78. http://dx.doi.org/10.15381/rif.v7i01-02.8820.

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En este trabajo se presenta el comportamiento de la sensibilidad de un detector coaxial de GeHP respecto de la llegada del haz de radiación colimado en la dirección frontal como lateral. Los resultados muestran que, para una configuración horizontal o vertical del criostato, existe una dirección preferencial de detección. A partir de los perfiles de sensibilidad se obtuvo un estimado de la dimensión sensible del cristal semiconductor del detector.
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John, George B., Yonglei Shang, Li Li, et al. "The Mitochondrial Inner Membrane Protein Mitofilin Controls Cristae Morphology." Molecular Biology of the Cell 16, no. 3 (2005): 1543–54. http://dx.doi.org/10.1091/mbc.e04-08-0697.

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Mitochondria are complex organelles with a highly dynamic distribution and internal organization. Here, we demonstrate that mitofilin, a previously identified mitochondrial protein of unknown function, controls mitochondrial cristae morphology. Mitofilin is enriched in the narrow space between the inner boundary and the outer membranes, where it forms a homotypic interaction and assembles into a large multimeric protein complex. Down-regulation of mitofilin in HeLa cells by using specific small interfering RNA lead to decreased cellular proliferation and increased apoptosis, suggesting abnorma
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Balassone, Giuseppina, Valentina Scognamiglio, Fernando Nieto, et al. "The nature of Zn-phyllosilicates in the nonsulfide Mina Grande and Cristal zinc deposits (Bongará District, Northern Peru): The TEM-HRTEM and AEM perspective." American Mineralogist 105, no. 8 (2020): 1223–41. http://dx.doi.org/10.2138/am-2020-7140.

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Abstract Zn-phyllosilicates are common minerals in nonsulfide Zn deposits and can give crucial information about the genesis of these oxidized mineralizations. They seldom represent the prevailing economic species but might have a significant impact on mineral processing. This study has been carried out on the Mina Grande and Cristal Zn-sulfide/nonsulfide deposits, which occur in the Bongará district (Amazonas region, northern Peru). The Cristal and Mina Grande orebodies are hosted by the sedimentary (prevailingly carbonate) successions of the Pucará Group (Condorsinga formation, Lower Jurassi
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Weber, Daniela, Susana Gorzalczany, Virginia Martino, Cristina Acevedo, Olov Sterner, and Timm Anke. "Metabolites from Endophytes of the Medicinal Plant Erythrina crista-galli." Zeitschrift für Naturforschung C 60, no. 5-6 (2005): 467–77. http://dx.doi.org/10.1515/znc-2005-5-616.

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Erythrina crista-galli (Fabaceae) is used in Argentinean ethnopharmacology as anti-inflammatory medication, narcotic, desinfectant, and for the treatment of wounds. The common name of the tree is “ceibo“ or coral tree. The dominating endophytes in E. crista-galli all belong to the genus Phomopsis as identified by microscopic features and the analysis of their ITS sequences. To investigate a possible contribution of Phomopsis spp. to the metabolites found in the plant, twelve different isolates were cultivated in different media. Besides several new metabolites a number of known compounds were
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Ern, Manfred, Dirk Offermann, Peter Preusse, Klaus-Ulrich Grossmann, and Jens Oberheide. "Calibration procedures and correction of detector signal relaxations for the CRISTA infrared satellite instrument." Applied Optics 42, no. 9 (2003): 1594. http://dx.doi.org/10.1364/ao.42.001594.

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Toth, Alexandra, Axel Meyrat, Stefan Stoldt, et al. "Kinetic coupling of the respiratory chain with ATP synthase, but not proton gradients, drives ATP production in cristae membranes." Proceedings of the National Academy of Sciences 117, no. 5 (2020): 2412–21. http://dx.doi.org/10.1073/pnas.1917968117.

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Mitochondria have a characteristic ultrastructure with invaginations of the inner membrane called cristae that contain the protein complexes of the oxidative phosphorylation system. How this particular morphology of the respiratory membrane impacts energy conversion is currently unknown. One proposed role of cristae formation is to facilitate the establishment of local proton gradients to fuel ATP synthesis. Here, we determined the local pH values at defined sublocations within mitochondria of respiring yeast cells by fusing a pH-sensitive GFP to proteins residing in different mitochondrial su
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Zorkau, Matthew, Christin A. Albus, Rolando Berlinguer-Palmini, Zofia M. A. Chrzanowska-Lightowlers, and Robert N. Lightowlers. "High-resolution imaging reveals compartmentalization of mitochondrial protein synthesis in cultured human cells." Proceedings of the National Academy of Sciences 118, no. 6 (2021): e2008778118. http://dx.doi.org/10.1073/pnas.2008778118.

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Human mitochondria contain their own genome, mitochondrial DNA, that is expressed in the mitochondrial matrix. This genome encodes 13 vital polypeptides that are components of the multisubunit complexes that couple oxidative phosphorylation (OXPHOS). The inner mitochondrial membrane that houses these complexes comprises the inner boundary membrane that runs parallel to the outer membrane, infoldings that form the cristae membranes, and the cristae junctions that separate the two. It is in these cristae membranes that the OXPHOS complexes have been shown to reside in various species. The majori
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de L. Fortes, Gerson R., Luciana B. Andrade, Janine T. C. Faria, Marisa de F. Oliveira, and Nilvane T. G. Müller. "In Vitro Multiplication of Potato (Solanum tuberosum L.) cv. Cristal II—Microcutting Origin." HortScience 32, no. 3 (1997): 471F—472. http://dx.doi.org/10.21273/hortsci.32.3.471f.

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The potato cultivar Cristal recently released by the CPACT/EMBRAPA Breeding Program has high dry matter and low reduce sugars. These are desirable characteristics as industry processing is concerned. Nevertheless, this is a recalcitrant cultivar. The meristem culture is difficult to establish along with a very low multiplication rate. The aim of this work was to improve the multiplication rate for this cultivar. Two-bud microcuttings derived from apical, mid, and basal regions were inoculated in test tubes with 10 ml MS culture media and vitamins as follows; myo-inositol (100 mg·L–1); sucrose
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Dissertations / Theses on the topic "Detecteur cristal"

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RICHARD, GONZALEZ DE LINARES BENEDICTE. "Contribution a l'etude d'un procede d'imagerie radiologique utilisant le photoconducteur a memoire bi : :(12)sio::(20)." Paris 6, 1987. http://www.theses.fr/1987PA066095.

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Martins, João Francisco Trencher. "Desenvolvimento do cristal semicondutor de iodeto de mercúrio para aplicação como detector de radiação." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-16092011-133711/.

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Neste trabalho descreve-se o estudo do estabelecimento de uma técnica para o crescimento e preparo de cristais de HgI2, com o intuito de utilizá-los como detectores semicondutores de radiação que operam a temperatura ambiente. Três métodos de crescimento de cristais foram estudados no desenvolvimento deste trabalho: (1) Transporte Físico de Vapor (Physical Vapor Transport PVT), (2) Solução Saturada de HgI2 empregando dois solventes distintos; Dimetil Sulfóxido (DMSO) (a) e acetona (b) e (3) método de Bridgman. A fim de avaliar os cristais de HgI2 desenvolvidos pelos três métodos, medidas sist
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Santos, Robinson Alves dos. "Otimização da metodologia de preparação do cristal de brometo de Tálio para sua aplicação como detector de radiação." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-03042012-082535/.

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Neste trabalho, cristais de TlBr foram crescidos e purificados pelo método de Bridgman Repetido a partir de sais comerciais de TlBr e caracterizados para serem usados como detectores de radiação à temperatura ambiente. Para avaliar a eficiência de purificação, estudos da diminuição da concentração de impurezas foram feitos após cada crescimento, analisando as impurezas traços por Espectrometria de Massas com Plasma (ICP-MS). Um decréscimo significativo da concentração de impurezas em função do número de purificações foi observado. Os cristais crescidos apresentaram boa qualidade cristalina de
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Oliveira, Icimone Braga de. "Desenvolvimento do cristal semicondutor de Brometo de Tálio para aplicações como detector de radiação e fotodetector." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-30032007-135609/.

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Neste trabalho, os cristais de TlBr foram crescidos pelo método de Bridgman, a partir de materiais purificados pela técnica de fusão zonal. A eficiência da purificação e avaliação da superfície cristalina em relação ao desempenho como detectores de radiação foi observada. Bons resultados foram obtidos com os aprimoramentos realizados nos processos de purificação, crescimento de cristais e na fabricação dos detectores. A resposta à radiação foi verificada excitando os detectores com fontes de raios gama: 241Am (59 keV), 133Ba (80 e 355 keV), 57Co (122 keV), 22Na (511 keV) e 137Cs (662 keV) à te
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Ferraz, Cauê de Mello. "Purificação e preparação do cristal semicondutor de iodeto de bismuto para aplicação como detector de radiação." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-14072016-131626/.

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O presente trabalho descreve o procedimento experimental do método de purificação do sal de Triiodeto de Bismuto (BiI3), visando uma futura aplicação destes em cristais semicondutores, como detector de radiação à temperatura ambiente. A técnica de Bridgman Vertical Repetido foi aplicada para a purificação e crescimento de BiI3, baseada na teoria da fusão e o fenômeno de nucleação do material. Uma ampola preenchida com sal de BiI3, na quantidade máxima de 25% do seu volume interno, foi posicionada no interior do forno de Bridgman Vertical e verticalmente deslocada à uma velocidade de 2 milímetr
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PEREIRA, MARIA C. C. "Desenvolvimento e caracterizacao do cristal cintilador de CsI(TI) utilizado como detector de radiacao." reponame:Repositório Institucional do IPEN, 1997. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10702.

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MARTINS, JOAO F. T. "Desenvolvimento do cristal semicondutor de iodeto de mercúrio para aplicação como detector de radiação." reponame:Repositório Institucional do IPEN, 2011. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10001.

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Made available in DSpace on 2014-10-09T12:33:41Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:05:35Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
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Martins, João Francisco Trencher. "Influência de defeitos e da qualidade superficial no desempenho do cristal de iodeto de mercúrio aplicado como detector de radiação." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-21122015-150412/.

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Os compostos semicondutores com alto número atômico e energia de banda proibida larga vêm sendo pesquisados como detectores de radiação X e gama, com alta resolução energética, operando à temperatura ambiente. O denominador comum dos materiais semicondutores, que operam à temperatura ambiente, é a dificuldade em crescer cristais com pureza química elevada e boa estequiometria. O desenvolvimento deste tipo de detectores semicondutores de radiação é ainda um desafio tecnológico e tem deparado com muitos fatores limitantes, tais como: material de partida com qualidade compatível para o uso no cre
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SANTOS, ROBINSON A. dos. "Otimização da metodologia de preparação do cristal de brometo de tálio para sua aplicação como detector de radiação." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10085.

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Made available in DSpace on 2014-10-09T12:34:35Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:00:07Z (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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LECANU, GAILLARD EMMANUELLE. "Detecteurs a cristaux scintillants pour la recherche de matiere noire non baryonique." Paris 11, 1994. http://www.theses.fr/1994PA112178.

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Depuis quelques decennies, les astronomes ont observe des mouvements de rotation inexpliques au niveau des galaxies, bien au-dela des limites visibles de ces galaxies. L'hypothese standard aujourd'hui consiste a supposer l'existence d'un halo de matiere non lumineuse autour des galaxies (dark matter). Cette these presente la mise au point d'un detecteur a cristaux scintillants pour la recherche de matiere noire sous la forme d'un nouveau type de particules, les wimps (weakly interacting massive particles). Les caracteristiques des wimps sont une masse de quelques gev a quelques tev, pas de cha
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Book chapters on the topic "Detecteur cristal"

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V. Sazanova, Katerina, Nadezhda V. Psurtseva, and Alexey L. Shavarda. "Metabolomic Changes in Wood Inhabiting Filamentous Fungi during Ontogenesis." In Metabolomics - Methodology and Applications in Medical Sciences and Life Sciences. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96621.

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GC–MS-based metabolomic profiling of different strains of basidiomycetes Lignomyces vetlinianus, Daedaleopsis tricolor and Sparassis crispa were studied. On different stages of growth in the methanol extracts of mycelium the different compounds including amino acids, organic acid of TCA cycle, sugars, fatty acids, sugar alcohols, and sugar acids were detected. Changes in the metabolite network occurring with age of the mycelium of L. vetlinianus and D. tricolor are discussed. The exponential phase of mycelium growth is characterized by pronounced differences during of growth, which manifests itself both in the analysis of specific compounds and in the modeling of the statistical model of the metabolic network. The metabolomic network in the stationary growth phase is less susceptible to changes over time, and is also characterized by a lower dispersion of samples from one aging group. For some compounds, including biotechnologically significant ones, targeted analysis by GC–MS was performed. 4, 6-dimethoxy-phthalide (4, 6-dimetoxy-1 (3H) -isobenzofuranone) was isolated from the mycelium of Lignomyces vetlinianus, accumulating in the mycelium in the form of large aggregates. The accumulation of sparassol and other orsellinic acid derivatives in Sparassis crispa culture under various conditions is described.
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Conference papers on the topic "Detecteur cristal"

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Ern, Manfred, Klaus U. Grossmann, and Dirk Offermann. "Detector signal relaxations and their correction: the Si:Ga bulk detectors of the CRISTA instrument." In International Symposium on Optical Science and Technology, edited by Marija Strojnik and Bjorn F. Andresen. SPIE, 2002. http://dx.doi.org/10.1117/12.455100.

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