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¡@¡@Because of the poly-si thin film transistor have the advantage of high mobility, it can improve the analysis for the flat plan display. Using the above advantage can combine the integrated circuit as control IC and memory on the small panel to reduce the number between the switch circuits and the outside contacts. These precise circuits must be considering the photo current¡Bthermal effects and the parasitical capacitance more due to the influence of these precise circuits is more serious than the switch circuits. In my thesis, the research of the electrical characteristics of the newest excimer laser crystallize coplane poly-si thin film transistors ,and using the device length with width is 128um/6um and 128um/16um can be extracted that the environment of the facing illumination have the photo-leakage current than none illumination about four orders, and the photo-leakage current is not consider with any gate voltage. ¡@¡@With the discussion of the capacitance, the main point of my researches is to change different conditions to extract the gate to source capacitance (Cgs). In addition, the slight carriers may effect the devices with the high mobility system on panel (SOP) technology error, the temperature must be considered. ¡@¡@We find the mobility is bigger at the environment of the temperature is 300K than the environment of the temperature is 100K when the device work in the linear region and the on current is lower at the environment of the temperature is 300K than the environment of the temperature is 100K when the device work in the saturation region. Using some references and some models as the concepts can analysis some phenomenons I refer to above.

京都大学 / 0048 / 新制・課程博士 / 博士(医学) / 甲第21343号 / 医博第4401号 / 新制||医||1031(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 平井 豊博, 教授 松田 秀一, 教授 別所 和久 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM

Published Article / Fly Ash is a by-product at thermal power stations, also otherwise known as residues of fine particles that rise with flue gases. An industrial by-product may be inferior to the traditional materials used construction applications, but, the lower the cost of these inferior materials make it an attractive alternative if adequate performance can be achieved. The objective of this study is to evaluate the chemical and physical effectiveness of self-cementing fly ashes derived from thermal power stations for construction applications with combined standards. Using laboratory testing specimens, suitable types of Fly Ashes namely: Kendal Dump Ash, Durapozz and Pozzfill, were tested to the required standards to evaluate the potential properties. All three Fly Ashes have been classified as a Class F Fly Ash, which requires a cementing agent for reactions to take place and for early strength gains in the early stages of the reaction processes. The Fly Ashes conformed to the combination of standards and have shown that the proper reactions will take place and will continue over period of time. The use of fly ash is accepted worldwide due to saving in cement, consuming industrial waste and making durable materials, especially due to improvement in the quality fly ash products.

Le combustible nucléaire pressenti pour les réacteurs de quatrième génération à neutrons rapides refroidis au sodium présente différentes caractéristiques qui le différencient du combustible utilisé dans les Réacteurs à Eau Pressurisée, notamment : une structure homogène (U,Pu)O2, une géométrie annulaire et une forte teneur en PuO2. Le procédé de fabrication des pastilles de combustible comprend la réalisation d’un mélange UO2/PuO2 par cobroyage suivie d’une mise en forme par pressage. Cependant, le mélange UO2/PuO2 cobroyé n’a pas les propriétés adaptées à un remplissage reproductible des moules de presses annulaires. Il s’agit donc d’identifier une opération intermédiaire, entre le cobroyage et la mise en forme, pour faciliter le remplissage des moules. Pour orienter le choix de cette opération, une étude à effets séparés a été réalisée sur des granulés d’UO2, considérés représentatifs de la poudre broyée en première approche. Les caractéristiques physiques cibles qui ont été étudiées sont la granulométrie et la morphologie (état de surface) de la poudre. Ainsi, des mélanges de granulés de tailles différentes ont été caractérisés pour évaluer l'influence de la quantité de fines (particules inférieures à 100 μm) sur les propriétés rhéologiques. En parallèle une intercomparaison entre les cellules de cisaillement de volumes et de types différents (Cellule de Schulze et FT4) a été effectuée afin d’avoir un bon compromis entre la quantité de poudre utilisée et la qualité des résultats. Un premier objectif a été de déterminer quelle proportion de fines est acceptable. Par ailleurs, pour évaluer l’effet de l’état de surface des granulés, une opération de type sphéroïdisation a été réalisée. Elle conduit à modifier la rugosité des granulés. Il a été montré que le taux de fines et la rugosité de surface sont deux paramètres influents qui permettent de modifier les propriétés rhéologiques. Notamment dans le cadre de ces travaux, la présence de fines de moins de 100 μm ne semble pas avoir d’impact négatif sur la mise en écoulement jusqu’à une proportion proche de 10%m. Par contre d’autres propriétés telle que la perméabilité sont sensibles à la proportion de fines même en dessous de 10%m. Une opération de sphéroïdisation permet d’améliorer les propriétés de mise en écoulement de la poudre même au-delà de 10%m de fines. Ces résultats font apparaitre deux modes d’action possibles qui sont la sélection granulométrique et la sphéroïdisation, cette dernière semblant la plus adaptée pour notre application. / The nuclear fuel for the fourth generation sodium-cooled fast neutron reactors presents characteristics which differentiate it from that used in Pressurized Water Reactors: a homogeneous structure (U,Pu)O2, an annular geometry and a high content of PuO2. The manufacturing process of the fuel pellets starts with the realization of a UO2/PuO2 mixture by co-grinding followed by forming by pressing. However, the UO2/PuO2 mixture does not exhibit the suitable properties for a reproducible filling of annular press moulds. An intermediate operation, between the co-grinding and the shaping, is necessary to facilitate the filling of the moulds. To direct the choice of this operation, a separate effects study was carried out on UO2 granules, considered as representative of the crushed powder in a first approach. The investigated target physical characteristics are the powder size distribution and morphology. Therefore, mixtures of granules of various sizes were characterized to evaluate the influence of the quantity of fines (particles with a size lower than 100 μm) on the rheological properties. In parallel an intercomparison study between shear cells of different volumes and types (Schulze cell and FT4) was carried out in order to have a good compromise between the quantity of powder used and the quality of the results. A first objective was to determine the proportion of fines acceptable. Then to evaluate the effect of the surface quality of the granules, an operation of spheroidization was carried out. This resulted in modifying the granules roughness. It has been shown that both the fines ratio and the surface roughness are influential parameters that make it possible to modify the rheological properties. In particular within the framework of this study, the presence of fines with a size lower than 100 μm does not seem to have a negative impact on incipient flow up to about 10 w%. On the contrary, other properties such as permeability are sensitive to the fines amount, even below 10 w%. A spheroidization stage enables to improve incipient flow properties of the powder even above 10 w% of fines. These results lead to two possible action modes, which are the grain size selection and the spheroidization, the latter being the most adapted for our application.

The purpose of this study was to develop a physiological profile of elite Australian Youth soccer players. Over three years, 150 players from the U'17, U'20 and U'23 national squads were tested for six measurements - height, weight, sum of eight skinfolds, vertical jump, maximum oxygen consumption and speed over twenty metres. Comparisons were made between those selected in the final team (classified as Successful) and those who failed to be selected (classified as Unsuccessful) to determine any significant differences between the two groups A physical and physiological profile was obtained for each player - expressed as a single value in both numerical and graphical formats. Players were ranked based on this score to determine significant differences between successful and unsuccessful players. Several significant differences (p<0.05) were found between Successful and Unsuccessful groups for a number of the variables primarily in the performance area rather than in the anthropometry parameters. For all squads, significant differences (P<0.05) were found between those who made the squad and those who did not when ranked based on their physical and physiological score. This study highlights the importance of the application of scientific testing to soccer Furthermore, it provides a system by which players' results can be analysed and ranked, and expressed in a format that provides the coach with immediate feedback as to an individual's specific strengths and weaknesses as a basis for training and team selection.

Ziel der Arbeit: die Abhängigkeit der physischen Schweineeigenschaften von der Schweinerasse. Arbeitsmethodik: in dem frischen Fleisch wurde pH-Wert, Farbigkeit, Wassergehalt, Wasserbindigkeit, Kochverluste und Zartheit festgestellt. Für die Ergebnisse wurde das Schlachtfleisch von 20 Litauischen Weißen, 20 Yorkshire, 20 Landrasen und 20 Großen Weißen Schweinen untersucht. Die Untersuchungen wurden nach bestimmten Methoden im Labor für Bewertung der physischen Fleischeigenschaften und –qualität vom Vieh durchgeführt. Die Schweinezucht ist ein der Hauptzweige der Viehzucht. In der Fleischindustrie macht das Schweinefleisch 40% aus. Das ist ein der produktivsten Viehzuchtzweig. In Litauen verbraucht man im einem Jahr ca. 20-23 kg vom Fleisch, darunter 40% ist das Schweinefleisch. Die Farbigkeit ist ein der Kennzeichen, nach dem die Fleischqualität und Verkaufsaussehen eingeschätzt wird. Vor dem Erwerb ist das Fleisch sensorisch zu überprüfen. Das ist eine Voraussetzung für gute Endproduktqualität und Präzision der technologischen Prozesse. Die Farbe vom Schweinefleisch hat Schattierungen von hell- bis dunkelrot. Das Schweinefleisch unterzeichnet sich durch sanfte Konsistenz und weiches muskulöses Gewebe. Sein Bindgewebe ist sanfter als beim Rindfleisch. Die Viehrasse, -typ, -alter, Masttyp, Nachschlachtungfaktoren, technologische Prozesse, Menge von Bindgewebe, Verhältnis zwischen Kollagen und Elastin beeinflussen die Fleischzartheit. Der wichtigste von technologischen... [to full text]

This is a study of the endocrine glands and their influence on the physical characteristics and behavior patterns of adolescents. The purpose of this study is not to present new ideas about the effects of the endocrine glands upon man, but to gather and present the information and data already available and to show how these glands of internal secretion affect the individual in his ability to participate in an educational program, with special emphasis on industrial arts.

Este estudo teve por objetivo analisar os aspectos estéticos, físicos, mecânicos e de qualidade da superfície usinada da madeira de árvores de Eucalyptus grandis, Eucalyptus urophylla e Eucalyptus dunnii aos 18 anos, tendo como objetivo a sua aplicação na indústria moveleira. Para tanto, foram coletadas três árvores de cada espécie da Estação Experimental de Ciências Florestais (EECF) da ESALQ/USP, localizada em Anhembi-SP. Os ensaios de massa específica aparente, densidade básica, variação dimensional e módulos de ruptura e elasticidade foram realizados de acordo com a NBR 7190/96. Para a análise de qualidade da superfície usinada foram avaliados 48 corpos de prova de cada espécie, aplainados em 7 diferentes velocidades de avanço. Em cada corpo de prova foram feitas 3 leituras, em diferentes posições, com rugosímetro. Foram realizadas análise de variância e testes de médias para cada parâmetro avaliado. Posteriormente, executaram-se as correlações de Pearson entre resultados dos diferentes ensaios. Com base nos resultados obtidos, concluiu-se que as três espécies estudadas apresentam características compatíveis para uso na indústria moveleira, com diferentes aplicações; a madeira de Eucalyptus urophylla apresentou o melhor desempenho em relação à maioria dos parâmetros analisados, o que indica a possibilidade de sua aplicação em grande parte dos componentes de um móvel; o Eucalyptus grandis foi a espécie que apresentou melhor desempenho nos ensaios de variação dimensional, porém apresentou restrições quanto ao uso estrutural e altos valores de coeficiente de variação nos resultados; o Eucalyptus dunnii apresentou maior retratibilidade e pior desempenho em relação à qualidade da superfície usinada, qualificando-se dentre as três espécies estudadas, como a menos indicada para uso em movelaria; as três espécies apresentaram importantes variações das características físicas ao longo do raio; os melhores resultados em relação à qualidade da superfície usinada foram obtidos com baixa velocidade de avanço; pela análise descritiva, os parâmetros de densidade e massa específica aparente são bons indicadores de estabilidade dimensional, desempenho mecânico e qualidade de superfície usinada; os resultados obtidos nas análises e os da bibliografia apontam uma alta variabilidade tecnológica da madeira das três espécies de eucalipto, recomendando a seleção e usos da madeira de clones. / The objective of this work was to analyze the aesthetics aspects, surface quality, physical and mechanical properties of Eucalyptus grandis, Eucalyptus dunnii and Eucalyptus urophylla wood with 18 years-old, aiming to give technical information its best application in furniture production. The material for the tests were three trees of each species, collected at Experimental Campus of Forestry Science from ESALQ/USP at Anhembi/SP. For the physical and mechanical tests the NBR 7190/96 was used. For the surface quality, 48 samples of each species were processed in 7 different forward velocities. In each sample, 3 tests in different positions were done using reliefmeter. Data were evaluated through analysis of variance, tests of comparison of means and Pearson correlation test between the different tests. It was concluded that the three studied species are suitable for furniture production, in different applications; the Eucalyptus urophylla had the best results for most of the realized tests, being suitable for most of the furniture components; the Eucalyptus grandis had the best results on shrinkage test, suitable for rigid joints or the ones with glued pieces and big dimension components, although it had the higher variation coefficient values and the species is not suitable for structure components, due to the low values on the mechanical tests; the Eucalyptus dunnii had the worst results for furniture production, comparing to the other studied, due to it\'s low performance at the shrinkage tests and at the surface quality test;. the three species had important variation trend of physical characteristics for the values on the radial direction, from the pith to the sapwood; the best results for the quality surface were due to the low forward velocity; the basic density and specific gravity parameters have good correlation with the studied characteristics: shrinkage, mechanical performance and surface quality; the results obtained on the analysis and the ones on the references show high technological variability on wood of the three species studied, so it is recommended the selection and use of wood from clones.

Orientador: Cristiane Inácio de Campos / Resumo: O segmento de painéis à base de madeira tem apresentado crescente expansão e competitividade, especialmente com aplicações na indústria moveleira e construção civil. No entanto, para garantir a competitividade os produtos devem apresentar propriedades equivalentes aos concorrentes. Neste contexto o estudo dos materiais ganha espeço, principalmente incorporando o uso da nanotecnologia para melhorar as características dos painéis, ampliando suas aplicações. Com base no exposto definiu-se o objetivo do presente estudo que foi avaliar as propriedades físicas e mecânicas dos painéis MDP a partir da adição de porcentagens distintas (0%, 25%, 50% e 100% em relação à água) de solução aquosa de nanocelulose associada ao adesivo ureia-formaldeído, essa geralmente utilizada na produção dos painéis. Os resultados obtidos permitiram concluir que não houve diferença estatística significativa nas propriedades de densidade e teor de umidade dos painéis em nenhuma das porcentagens adicionadas em comparação ao painel testemunha. A análise de imagens a partir de microscopia eletrônica de varredura permitiu observar uma superfície mais polida, com menor presença de irregularidades o que torna o painel mais adequado para o recebimento de revestimentos. Os testes mecânicos indicaram que não houve diferença estatística significativa para os testes de flexão estática, adesão interna e arrancamento de parafuso. Observou-se que houve uma tendência de redução das propriedades de adesão interna, resistê... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The wood-based panel segment has shown increasing expansion and competitiveness, especially with furniture industry and civil construction applications. However, to ensure competitiveness the products must present equivalent properties to competitors. In this context, the study of materials is gaining momentum, mainly incorporating the use of nanotechnology to improve the panels characteristics, expanding their applications. Based on the foregoing, the aim of the present study was to evaluate the physical properties of MDP panels by adding nanocellulose (in different percentages 0%, 25%, 50% and 100% regarding the water total) to the urea-formaldehyde adhesive in this type of panel production. The results showed that there was no significant statistical difference in the properties of density and moisture content of the panels in any of the percentages added in comparison to the control panel. The analysis of images from scanning electron microscopy allowed to observe a more polished surface, with less presence of irregularities which makes the panel more suitable for the reception of coatings. The mechanical tests indicated that there was no significant statistical difference for the tests of static flexion, internal adhesion and screw pulling. It was observed that there was a tendency of reduction of the internal adhesion properties, resistance and rigidity of the panels with the increase of the percentage of nanocellulose. However, for the bolt pull tests, a trend of impro... (Complete abstract click electronic access below) / Mestre