Dielectric Coatings for the Thermal Control of Geostationary Satellites
This chapter contains sections titled: Introduction Space environment The thermal control of space vehicles Electrostatic phenomena in materials Conclusion Bibliography
Materials Literature
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Silicon Carbide Oxidation and Environmental Barrier Coating Investigation
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Advanced Test Reactor National Scientific User Facility: Addressing advanced nuclear materials research
The Advanced Test Reactor National Scientific User Facility (ATR NSUF), based at the Idaho National Laboratory in the United States, is supporting Department of Energy and industry research efforts to ensure the properties of materials in light water reactors are well understood. The ATR NSUF is providing this support…
Analisa Rietveld Terhadap Transformasi Fasa (α→β) Pada Solid Solution ti-3 at.% al Pada Proses Mechanical Alloying Dengan Variasi Milling Time
Dalam sebuah inovasi proses, khususnya transformasi fasa paduan serbuk Ti-3 at.% Al, terdapat metode-metode perlakuan yang diberikan untuk men-transformasikan fasa, salah satunya adalah dengan perlakuan mekanik. Dalam hal ini, perlakuan mekanik yang akan diberikan untuk mentransformasikan fasa paduan serbuk Ti-3 at.%…
Pengaruh Penambahan 10at.%Ni dan Waktu Milling pada Paduan MgAl Hasil Mechanical Alloying dan Sintering
Paduan magnesium banyak dikembangkan sebagai Hydrogen Storage Materials. Penambahan unsur Al dan Ni dalam paduan magnesium berguna untuk mengurangi energi ketika proses hidrogenasi berlangsung. Sintesa paduan magnesium dilakukan dengan metode mechanical alloying menggunakan Modification Horizontal Ball Mill. Paduan Mg…
흰쥐 어금니 치수에서 Peripherin 발현 축삭의 분포
치아 내에 존재하는 축삭들은 대부분 민말이집 축삭들과 일부 작은말이집 축삭들로 구성되어 있다. 이러한 축삭들은 각각 다른 통증전도에 관련되어 있으며, 축삭들의 종류에 따라 다양한 신경전달물질들과 수용체들을 함유하고 있다. 그러나 치수 내에 존재하는 다양한 축삭들의 분포양상과 종류에 따른 특징들에 대해 아직 정확하게 알려진 바가 없다. 이 연구에서 민말이집 축삭과 작은말이집 축삭들의 표지자인 peripherin을 발현하는 축삭들의 치수 내 분포양상을 알아보기 위해, 흰쥐의 위턱 어금니 치수를 대상으로 peripherin항체를 사용하여 면역조직화학법을 실시하였다. Pe…
Extreme Ultraviolet Lithography
This chapter contains sections titled: Introduction to extreme ultraviolet lithography The electromagnetic properties of materials and the complex index Reflective optical elements for EUV lithography Reflective masks for EUV lithography Modeling and simulation for EUV lithography EUV lithography sources Conclusion Ap…
El recocido de esferoidización como vía para mejorar la maquinabilidad de la aleación ИЧX28H2
La aleación ИЧX28H2, por su elevada dureza y resistencia al desgaste, se utiliza para fabricar piezas y componentes de bombas centrífugas que operan bajo condiciones severas de desgaste abrasivo, sin embargo, estas propiedades dificultan su maquinabilidad. El propósito de la investigación fue mejorar el proceso de maq…
REFORMACIÓN SECA DE METANO SOBRE CATALIZADORES DE Co OBTENIDOS DE ÓXIDOS TIPO PEROVSKITA
"Se estudiaron una serie de precursores tipo perovskita (La 1-x Sr x CoO 3 con x = 0; 0,2; 0,4), preparados por el método de auto-combustión y caracterizados por las técnicas de difracción de rayos X (DRX), área superficial específica (BET), temperatura programada de reducción (RTP) y analizados por microscopia electr…
Isolation and characterization of membrane vesicles secreted by human renal cells
Most cells release membrane vesicles for various purposes including, but not limited to, intercellular communication and disposal of membrane and soluble proteins. These vesicles are secreted into urine coming from the cells lining the urinary tract and bladder epithelium. These vesicles are a promising source of biom…
Effect of PbS Film Thickness on the Performance of Colloidal Quantum Dot Solar Cells
Colloidal quantum dots offer broad tuning of semiconductor band structure via the quantum size effect. In this paper, we present a detailed investigation on the influence of the thickness of colloidal lead sulfide (PbS) nanocrystals (active layer) to the photovoltaic performance of colloidal quantum dot solar cells. T…
Electronic Structure Determination of [Fe]-hydrogenase model complexes
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Cytotoxicity and Antioxidant Activity of a Steroidal Saponin Isolated from Dracaena Umbratica
Faculty of Applied Science, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Faculty of Applied Science, Universiti Teknologi MARA Perlis,02600 Arau, Perlis, Malaysia; School of Biology, Universiti Sains Malaysia, 11800, Gelugor, Pulau Pinang, Malaysia; Institut Teknologi Bandung, Jln Ganesha 10, 40132,…
Some studies on dehydroxylation-rehydration phenomenon of kaolin of Indian origin
Dehydroxylated kaolin has widespread application in the synthesis of mullite ceramics. In the present study, a new source of highly pure kaolin from western part of India was used as a raw material to investigate the dehydroxylation-rehydroxylation behavior utilizing DTA/TGA and FTIR technique. The results showed that…
Superconductivity in Alkali-doped Dibenzopentacene
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Fertigungskonzepte für Faserverbund-Elastomer-Strukturen in UAV-Rumpfschalen
Um die technologische Machbarkeit neuer Werkstoffverbunde zu analysieren, ist es Aufgabe \nder Bachelorthesis mögliche Anwendungen anhand von Demonstratorbauteilen zu verwirklichen. \nBeispiele hierfür sind die spaltarme Anschlussgeometrie einer Rumpfklappe an dessen Umran-dungsstruktur oder bewegliche Komponenten int…
Rapid Hydrothermal Synthesis of Faujasitic Zeolites
In this paper, we propose modifications to a typical hydrothermal synthesis of zeolite which leads to very rapid crystallization. Water is gradually removed from the reaction mixture leading to a highly concentrated, extensively nucleated supersaturated gel, with the water added back slowly to this gel, crystallizatio…
Entwicklung von Vorrichtungen zum Transport und zur Fixierung von textilen Faserhalbzeugen zur Preformherstellung
Zur Herstellung von Hochleistungsfaserkunststoffverbundbauteilen sind mehrere verschiedene Prozess- und Verfahrensschritte notwendig, die zum Teil einen erheblichen Einfluss auf die spätere Bauteilqualität haben. Hierzu zählen vor allem der Ablegeprozess der einzelnen Kohlenstofffaserlagen bei der Preformherstellung.…
MODIFIKASI MESIN PENCACAH JERAMI( COUNTING MACHINES MODIFIED STRAW )
Teknologi tepat guna adalah teknologi yang cocok dengan kebutuhan masyarakat sehingga bias dimanfaatkan pada saat rentang waktu tertentu. Seiring dengan perkembangan ilmu pengetahuan dan teknologi inilah yang mendukung kami untuk menciptakan suatu karya cipta teknologi yang dapat digunakan oleh masyarakat. Kapasitas m…
Mechanical and flammability properties of hybrid recycled newspaper/sepiolite polypropylene composites
The goals of this study are to determine the effect of recycled newspaper (RNP) and sepiolite ratio on physical and mechanical properties and flammability properties of RNP/PP composites and RNP/Sepiolite PP composites respectively. In this research, RNP was collected from old newspaper piles and treated in laboratory…