A compound refractive lens (CRL), consisting of a series of N closely spaced lens elements each of which contributes a small fraction of the total focusing, can be used to focus x rays or neutrons. The thickness of a CRL can be comparable to its focal length, whereupon a thick-lens anal...
The performance of compound cold water soluble gel in petrifilm aerobic count plates was evaluated in terms of particle size, pH, transmittance, gel strength, water absorption, and water retention. Results demonstrated that when the ratio of sodium polyacrylate and guar gum is 2:8 in cold water...
2. Silicide Reaction Metal silicides are compound phases between metals and silicon. Metal layers deposited on silicon are unstable against silicide formation, in the presence of significant atomic diffusion, because of the negative heats of formation of silicides. Therefore, at elevated temperatures,...
Characteristics of Chemical Bonds in CuInSe2 and Its Thin-Film Deposition Processes Used to Fabricate Solar Cells CuInSe(CIS) is one of the I-III-VIcompound semiconductors with a chalcopyrite-type crystal structure. The characteristics of chemical bonds in CIS differ f... T Wada,T Maeda - 《...
Compound identification is the main hurdle in LC-HRMS-based metabolomics, given the high number of 'unknown' metabolites. In recent years, numerous in silico fragmentation simulators have been developed to simplify and improve mass spectral interpretation and compound annotation. Nevertheless, expert ...
Acetaldehyde was predominant volatile compound in yoghurts, which followed by acetone, acetoin, diacetyl and ethanol. The level of diacetly was inversely related to titratable acidity, acetaldehyde and ethanoic acid. From ketones with high carbones 2-undecanone and 2-pentadecanone were higher ...
Film-cooling effectiveness downstream of a single row of holes with variable density ratio ASME J. Turbomach. (1991) D.L. Schmidt et al. Film cooling with compound angle holes: adiabatic effectiveness ASME J. Turbomach. (1996) J.F. Keffer et al. The round turbulent jet in a cross wind ...
With the new molding compound, developed to meet requirements of the design and reliability of next generation electronics package or systems, it becomes increasingly important to characterize moisture absorption behavior and characteristics. 展开
melting point of 984 K. hard, brittle solid at room temperature. poor conductor of heat and electricity as a solid good conductor of electricity as a liquid or in an aqueous solution This sample is classified as (4)(1) a metallic element(2) a radioactive element(3) a molecular compound...
In this study, methanol was pre-mixed in the intake manifold of a diesel engine,and the combustion characteristics and emissions of the compound combustion were investigated. The results show that combustion start point of the compound combustion is later than that of the diesel, but the combustio...