Materials Literature
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Abstract Nach dem „Sprühverfahren”︁ wurden n‐leitende Indiumoxydschichten mit Schichtdicken zwischen 0,1, und 0,5 μm auf Glasplatten hergestellt und die Herstellungsbedingungen dieser Schichten untersucht. Die Leitfähigkeit der Schichten liegt je nach Dotierung zwischen 1,5 × 10 2 und 4,3 × 10 3 Ω −1 cm −1 und die Kon…
The metazoans on Fucus serratus L. and its epiphytes were studied quantitatively at a locality in the northern Øresund. A total of 164 species was found and the different systematic units treated faunistically and ecologically. The ecological conditions for algalliving animals are discussed, with special reference to…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic Properties of Intermetallic Compounds between the Lanthanides and Nickel or CobaltJohn Farrell and W. E. WallaceCite this: Inorg. Chem. 1966, 5, 1, 105–109Publication Date (Print):January 1, 1966Publication History Published online1 May 2002Published inissue 1 Janua…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Toluenedithiolate and Maleonitriledithiolate Square-Matrix SystemsRaymond Williams, E. Billig, James H. Waters, and Harry B. GrayCite this: J. Am. Chem. Soc. 1966, 88, 1, 43–50Publication Date (Print):January 1, 1966Publication History Published online1 May 2002Published…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAction of Proteolytic Enzymes on Tropocollagen and Insoluble Collagen*M. P. Drake, P. F. Davison, S. Bump, and F. O. SchmittCite this: Biochemistry 1966, 5, 1, 301–312Publication Date (Print):January 1, 1966Publication History Published online1 May 2002Published inissue 1 Ja…
2種類の遷移型アルミナ, ガンマ型, シータ型がアルファアルミナに転移する際の水蒸気の効果が論じた. この際, 遷移型アルミナ格子中の水の作用も考慮した. ガンマ型には格子水があり, シータ型にはない.まず, 一定時間, 各温度, 各水蒸気圧下で, 両型のアルミナを加熱し生成したアルファアルミナを定量した. 温度は, 1000℃ないし1270℃, 水蒸気圧は, 760mmHg, 17.5mmHg, 0.0005mmHgである. この結果, 水蒸気はアルファアルミナ生成温度を低下させること, ガンマ型の方が低い温度でアルファ型になること, が明らかになった. ついで, 760mmHg, 17.5mmHg水蒸気圧下で, 一定温度, 各…
TABLES OF DEFLECTION FACTOR VALUES FOR THREE-LAYER ELASTIC SYSTEMS LOADED WITH UNIFORM CIRCULAR LOADS HAVE BEEN PUBLISHED BY A. JONES OF THE THORNTON RESEARCH CENTER, IN CONNECTION WITH THE DEVELOPMENT OF A FUNDAMENTAL METHOD OF PAVEMENT DESIGN. FOR CONVENIENCE IN THE DESIGN AND ANALYSIS OF PAVEMENT STRUCTURES, THESE…
Abstract : Two basic approaches are presented for achieving combustion of ammonia in internal combustion engines. The first approach is one of integrating the ammonia combustion capability into the research and development of engines for the 1975-80 time frame. This approach would have the objective of building and a…
The rate and products of the uranium + water + oxygen reaction have been studied. Oxygen reduces the corrosion rate 30 to 100-fold and is consumed during the reaction. The oxygen is converted to water and does not react directly with the uranium. Only traces of hydrogen are evolved except under condensation conditions…
The heat capacities of UN, UN1.59 and UN1.73 have been measured from 11 to 320°K. The Cp curves for the three compounds show anomalies at 52, 94 and 33°K respectively, corresponding to magnetic ordering phenomena. The values of the standard thermodynamic functions are tabulated, together with heats and entropies of th…
Abstract We first summarize available experimental evidence indicating the existence of a second‐order transition or relaxation region in atactic polystyrene at 60 to 100°C. above T g . It increases from 137°C. at a molecular weight of 3000 to 192°C. at a molecular weight of 392,000. It appears in such diverse measure…
The persistence of vaccinia virus on wool (blanket and gabardine) and cotton (sheeting, terry cloth, and knit jersey) fabrics was studied. The fabrics were exposed to the virus by three methods: direct contact, aerosol, and virus-containing dust having a high content of textile fibers. Fabrics exposed to virus by each…
The effects of temperature, relative humidity and pH on the rate of the uranium + water reaction have been studied. Linear rates of corrosion and hydrogen evolution are obtained at different temperatures and the derived activation energies vary from 12 to 17 kcal mole–1 depending on the batch of uranium. Hydrogen has…
Abstract The microhardness‐load characteristics for five alkali halide crystals are studied. The equation H = 1854 ad n −2 appears to be valid for all samples, all crystals having the same value of n but different values of a. The results are generalized to all alkali halide crystals with the NaCl‐type lattice. The ph…
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Abstract Using the method of images, the stress field of a screw dislocation in and near a lamellar inclusion is determined. The general solution holds for many simple cases involving straight boundaries, such as metals with surface film, thin plates, or composite materials of laminated structure. The image force on t…
Article Untersuchungen zum Wirkungsmechanismus glykosidspaltender Enzyme, I. Darstellung und Eigenschaften spezifischer Inaktivatoren was published on January 1, 1966 in the journal Biological Chemistry (volume 345, issue Jahresband).
The oxidation of uranium mononitride UN has been investigated and some comparative measurements carried out on uranium monocarbide UC. Powdered UN, of surface area 0.2–0.4 m2/g, oxidizes isothermally at a measurable rate in the temperature range 230–270°C. The reaction kinetics are independent of oxygen pressure (50–7…
Both cubic and rhombohedral forms of boron arsenides were made by the vapor‐phase technique. Energy gaps of the cubic and rhombohedral forms were estimated to be 1.46 and 1.51 ev, respectively, by the optical transmission technique of powdered samples. Mixed crystals of boron arsenide‐gallium arsenide were also prepar…
Using the apparatus described in the preceding report, the effects of superimposed ultrasonic vibration on compressive deformation were investigated with several materials. The flow stress of compression can be reduced by superimposing the vibration. However, the effectiveness differs with the kind of specimen, being…