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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 930 for “"Ba"”.
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The mechanical properties of Y-Ba-Cu-O and Gd-Ba-Cu-O/Ag bulk superconductor magnets
Single-grain RE-Ba-Cu-O bulk high temperature superconductors [or (RE)BCO, where RE = rare earth element or yttrium] have demonstrated significant potential for practical applications due to their ability to trap magnetic fields in excess of 17 T, which is an order of magnitude greater than what …
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A Practical Extension to the AB/BA Design
… at a general extension to the traditional AB/BA<br />crossover design that is commonly used in clinical trials to determine the effectiveness<br />of new candidate drugs. While the traditional crossover design requires each patient<br />in the study to be measured on both treatment A and …
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Physiological effects of BA and ABA on caixin seedlings
… aimed to determine physiological effects of BA, ABA, and heat stress on caixin seedlings. BA application maintained juvenility of caixin seedlings, as concentrations of chlorophylls and carotenoids, and photochemical quenching of BA-grown seedlings were higher than control- and ABA-grown …
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Hortas urbanas comunitárias em Salvador-BA: organização, trabalho e alimentos.
A Agricultura Urbana e Periurbana vem sendo praticada em todo o mundo, observando-se o incentivo e o apoio de organismos internacionais e a adoção política desta estratégia. Tem-se nas hortas urbanas uma das modalidades de Agricultura Urbana, como alternativa de produção de alimentos. No Brasil, as …
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Spectrochemical analysis of the Moldavites, Ba, Li, Sr, and Rb
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1964.
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Thick film Y₁Ba₂Cu₃Ox on buffered ceramic substrates
… with thick film superconductors composed of Y1Ba2~CU30X. The silver buffer layer is designed to prevent contact between the substrate and the superconductor, thereby eliminating chemical reactions between the two materials. The development as well as the comprehensive characterization of these …
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Composição da matéria orgânica nos estuários de Cairu e Camamu, BA
O estuário de Cairu e a baía de Camamu estão localizados no sul da Bahia, nordeste do Brasil. O objetivo deste estudo é determinar as principais fontes e processos que atuam nessas duas áreas através da análise elementar e isotópica do carbono e nitrogênio de amostras de sedimentos superficiais …
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The concept of motherhood in the Bible = Ha-Imahut ba-Mikra
… biblical stories which follow the theme of the barren woman who gives birth to a hero. Chapter two in turn deals with the theme of women who bear children easily, and the consequent fate that awaits them. The second section investigates the rhetorical strategies employed in two respective …
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Gestão e participação na Escola Família Agrícola da região de Alagoinhas – BA.
… in Education at the Federal University of Bahia (PPGE/UFBA) and had as object of research the Management and Participation in the Escola Família Agrícola of the Region of Alagoinhas. The study started from a problem that sought to analyze how the management and participation existing in the …
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Ba in the American context : an exploration of Japanese in U.S. workplaces
… the influences of the Japanese sense of ba on their patterns of perceiving the working environment and work-related human~relations in the U.S. social context. Ba in this study refers to the frame of relationships that is shared among the individuals in a certain specific situation.</p> …
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Taxonomia da subclasse Tetractinomorpha (Porifera, Demospongiae) do Arquipélago de Abrolhos, BA, Brasil
… Five species are new records for the coast of Bahia. Cliona delitrix Pang, 1973, Terpios fugax Duch. & Mich., 1864 and Timea stenosclera Hechtel, 1969 are new occurrences for the Brazilian coast. Two species are new to science: Stelletta anasteria sp. nov. and Terpios ignis sp. nov. Four …
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Revisão sistemática dos Octocorallia (Coelenterata, Anthozoa) dos recifes de Abrolhos, BA, Brasil
… (Coelenterata, Anthozoa) from the Abrolhos area, Bahia, Brazil. These studies were based on material from collections in Brazilian and American institutions. The specimens from Abrolhos were compared with specimens of other localities to determine the variation ocurring within each species. …
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Heteroepitaxial growth of chemically derived Ba₂YCu₃O₇âx thin films
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1993.
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Inundações e mapeamento participativo na localidade de Baixa de Santa Rita - Salvador/BA
… floods, which cause material damage and disturbances in urban dynamics. The main objective of the research is to analyze the distribution of areas susceptible to flooding in the locality of Baixa de Santa Rita, in Salvador, through a participatory mapping, correlating this information with the …
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Thermogravimetric, thermopower, and electrical conductivity studies of the Ba₂YCu₃O₇₋ₓ system
<p>"The Ba<sub>2</sub>YCu<sub>3</sub>O<sub>7-x</sub> system was investigated using thermogravimetric, thermopower, and d.c. electrical conductivity techniques. The system was found to exhibit a semiconductor to metallic transition coincident with the documented orthorhombic to tetragonal phase …
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Diversidade de espécies, variação cariotípica e distribuição dos roedores da Chapada Diamantina, BA
… is a vast mountainous plateau in the interior of Bahia state, with altitudes varying from 400 to 2000m. No systematic mammal survey encompassing the total latitudinal and altitudinal ranges of the Chapada Diamantina was attempted so far. Six expeditions were performed in to a total of 18 different …
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Improving the mechanical properties of Y-Ba-Cu-O single grain bulk superconductors
… grains of GdBCO and SmBCO with silver can be batch processed successfully with superior mechanical properties compared to silver-free GdBCO or SmBCO, grown by standard top seeded melt growth (TSMG). However, the successful, reliable growth of large single grains of YBCO-Ag by TSMG is …
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Barium uptake by diatoms and the 226Ra-Ba-Si system in the oceans.
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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