Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A new actuator of a joint mechanism is proposed, composed of two TiNi alloy wires. First, the static and dynamic properties of the TiNi alloy wire that were not known are analyzed. Then the mathemati cal model of the actuator is induced. Next, the control sys tems of the actuator are synthesized by pulse width modu la…
Fabrication de composites par infiltration et depot chimique en phase vapeur de SiC dans une structure fibreuse de SiC. L'utilisation d'un gradient thermique et d'un ecoulement gazeux force permet de reduire la duree d'infiltration. On etudie les proprietes mecaniques de ces composites
Si(001)-2×1 single-domain structure has been observed by reflection high-energy electron diffraction (RHEED) after a substrate annealing at a temperature of 1000°C for 20 min. This implies surface steps have been changed from monatomic layer to biatomic layer height by the annealing. It was found that the single-domai…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBis axially coordinated (phthalocyaninato)ruthenium(II) compoundsWolfram Kobel and Michael HanackCite this: Inorg. Chem. 1986, 25, 1, 103–107Publication Date (Print):January 1, 1986Publication History Published online1 May 2002Published inissue 1 January 1986https://pubs.acs…
Type V collagen and type I collagen were obtained from human placentas by pepsin treatment, followed by salt fractionation. The precipitates formed at 37 degrees C from a mixed solution of type V collagen and type I collagen, reacted with antibodies to either type V collagen or type I collagen. The precipitates seen b…
We examined collagen materials for soft tissue augmentation [Zyderm Collagen Implant (ZCI), glutaraldehyde cross-linked (GAX) collagen, and Koken Atelocollagen (Atelocollagen)]; hemostatic collagens [Gelfoam Gelatin Powder (Gelfoam), Avitene Microfibrillar Collagen Hemostat (Avitene), and Collastat Collagen Hemostat (…
The two-dimensional random-parking limit is the area fraction of a plane covered by circles when the circles are added sequentially in a random way, without overlap, until no further circles can be added. As yet, no analytical solution exists for this limit. Several computer simulations and one experimental study have…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA theoretical survey of unsaturated or multiply bonded and divalent silicon compounds. Comparison with carbon analogsB. T. Luke, J. A. Pople, M. B. Krogh-Jespersen, Y. Apeloig, M. Karni, J. Chandrasekhar, and Paul v. R. SchleyerCite this: J. Am. Chem. Soc. 1986, 108, 2, 270–…
The behaviour of large air-insulated structures subjected to complex multiple-peak surge overvoltages is influenced by the presence of already established leader overvoltages in influenced by the presence of already established leader development in the space. The decay processes of a positive leader channel following…
残油FCC触媒を選定する際の指針を得る目的で, 残油を分解した時の生成物の選択性と触媒の性状との関係について検討した。スチーム処理により疑似平衡化した三種類の市販触媒についてパイロットテストを実施した結果, 生成物の選択性には触媒マトリックスの細孔分布が大きく影響していることが明らかになった。これは, 残さ留分の分解は, 液状でマトリックスの細孔内に拡散し, 細孔表面上で比較的小さな分子へ予備分解したのちに, ゼオライト上で最終生成物へと分解するためである。残油FCCにおいては, 原料油の残さ留分の平均分子サイズに対応した細孔径範囲に多くの細孔が分布しているような触媒を選定する必要がある。
The lipid, fatty acid, glucan, protein, and chlorophyll contents of nutrient-starved and nutrient-stressed cells of Cyclotella meneghiniana Kütz. were investigated in batch and semicontinuous culture experiments, respectively. In batch culture experiments, cells were removed from nutrient-replete media, resuspended in…
Article The Diatom Genus Thalassiosira Cleve in Gulf Stream Warm Core Rings: Taxonomy, with T. intrannula and T. lineoides, spp. nov. was published on January 1, 1986 in the journal Botanica Marina (volume 29, issue 1).
At a 130°C temperature, which can be regarded as conservatively representing the temperature in the annulus of a pressurized water reactor (PWR) during the first phase of a design basis loss-of-coolant accident (LOCA), no significant difference was found in the retention of 131I loaded as elemental iodine by various f…
The electrocatalytic activities of heat-treated chloro(tetraphenylporphyrinato)iron(III)(ClTPPFeIII) for oxygen reduction have been studied using the rotating ring–disc electrode technique and compared with those of heat-treated TPPCoII and TPPNiII. ClTPPFeIII gives an unusual result, not observed for TPPCoII or TPPNi…
The rolling contact fatigue life of bearing steel is improved with decreases in the oxide nonmetallic inclusions. The oxygen content of high carbon chromium bearing steel has been reduced to an average level of 5.8ppm. This is accomplished through the combined processes of an electric arc furnace, a ladle furnace, an…
Poly(amide-urethanes) with long repeating units were prepared from 2-aminoethanol, α,ω-alkylene dicarboxylic acid chlorides, and 1.6-diisocyanatohexane. These partially crystalline polymers undergo slow hydrolysis when suspended in buffered water but were found to be more readily degraded by the enzyme subtilisin.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVibrational spectra of terminal metal hydrides: solution and matrix-isolation studies of [(.eta.-C5H5)2MHn]x+ (M = Re, Mo, W, Nb, Ta; n = 1-3; x = 0, 1)Reuben B. Girling, Peter Grebenik, and Robin N. PerutzCite this: Inorg. Chem. 1986, 25, 1, 31–36Publication Date (Print):Ja…
Article Some Physico-Chemical Properties of Bismuth Chalcogenides x-Ray Photoelectron and Diffuse Reflectance Spectra was published on January 1, 1986 in the journal Zeitschrift für Physikalische Chemie (volume 267O, issue 1).
General effects of five types of ageing on textiles are examined. The types of ageing discussed are physical, photochemical, thermal, chemical and mechanical. Changes in the structure and properties of textiles that result from each type of ageing are discussed in general terms. This paper is expected to provide conse…
The dielectric conditions which are unique to converter transformers and smoothing reactors are examined. Both steady state and transient situations are discussed. Two additional tests are recommended for this equipment - a long term dc applied potential test and a polarity reversal test. Formulae are developed to cal…