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 series of experiments using paramagnetic resonance at microwave frequencies and in the 1-4\ifmmode^\circ\else\textdegree\fi{}K temperature range on ${\mathrm{Gd}}_{2}$${\mathrm{Mg}}_{3}$${({\mathrm{NO}}_{3})}_{12}$\ifmmode\cdot\else\textperiodcentered\fi{}24${\mathrm{H}}_{2}$O, ${\mathrm{K}}_{3}$Cr${(\mathrm{CN})}_{…
Tight-binding calculations, using a two-dimensional model of the graphite lattice, lead to a point of contact of valence and conduction bands at the corner of the reduced Brillouin zone. A perturbation calculation which starts with wave functions of the two-dimensional lattice and is applied to the three-dimensional l…
研究目的混打綿工程における各機台の開綿程度を定量的に測定するのが目的である開綿には綿塊 (以下タフトと記す) の分割と開舒の両作用がある.タフトの分割は各機台で生じたタフトの平均重量から求め, タフトの開舒についてはタフトの見掛けの比積の値から開綿度を定量的に考えることにした.各機台より採取したタフトの重量と見掛けの体積から見掛けの比積を求め, これの大小をもって開綿度の大小をあらわすことにした.別にタフトの見掛けの体積を測定するのに光線利用の簡単な方法を用い, それによる結果を本実験の結果と比較検討した.研究結果(1) 全体についてはH.B. B., P. O., C. O., H. F. およびF. S. の順序で開綿度は上昇…
In this article the authors seek to compute the percentage of comber waste, to make some modifications or improvements in the constitutent parts of the combers now in use, and to find a guide to further study on the subject. As regards combing action in a cotton comber, we have made some theoretical approaches from th…
(1) The stiffness of textile fabrics depends upon its bending directions, and in general the stiffness in bias directions is relatively small.(2) In so far as the bending is concerned, the fabrics are like 2-plywood but when woven into typical ribs in one direction they become like in mono-plywood.(3) The stiffness in…
Abstract Type species for the trilobite genus Pseudocryphaeus and the subgenus Asteropyge (Metacanthina), proposed and briefly described in 1953, are here described in detail, as well as several related forms, including the new subspecies A. (M.) oehlerti praecursor and P. michelini barroisi.
In order to build up a background to the relative difficulty for burning the different raw materials in cement production the solid phase reactions between SiO2 and either CaCO3 or BaCO3 at the temperatures ranging 500°-800°C were studied by measuring the amount of CO2 liberated during the reaction. Then, applying the…
We have studied the martensite transformation of Cu-Al binary alloys which contained 12, 18%Al. From the results of our experiment, we found that there were two types of β′ transformed from β by martensitic way when β was cooled with different velocities. The one type occurred when the Vc (cooling velocity) became gre…
Les qualités de luminosité et de résolution du spectromètre F.-P. justifient la généralisation de son emploi à divers domaines de la spectroscopie où seuls le prisme et le réseau sont habituellement utilisés ; mais cette généralisation n'est effectivement possible que si le spectromètre F.-P. est transformé en spectro…
A study has been made of the factors that affect or bring about the corrosion of the zinc electrode in a silver‐zinc‐alkali cell. Cells containing 30% potassium hydroxide as electrolyte were used and kept at room temperature. Special attention was centered on open circuit or stand conditions. This corrosion is affecte…
電解により90Sr-90Y中性溶液から高純度の無担体90Yを単離する迅速法を報告した.放射化学的純度は99.9%以上であり収量を問わないならば無担体90Yを数分間で調製することができる.90Sr-90Y溶液をpH5～6に調節し,白金を両極(陰極には銅を代用してもよい)として2～6ボルトの電圧をかけると無担体90Yが陰極にだけ析出する.陰極上とのイットリウムは使用目的に応じて酸で溶出することができる.電解液の支持塩は硝酸アンモニウム,硫酸アンモニウム,塩化アンモニウムのいずれでもよい.ストロンチウムの担体を含むときには硫酸塩を使えないことはいうまでもない.
A new method of preparing cadmium niobate was demonstrated. This method involved the anodic spark reaction of cadmium in a niobate solution and crystallization of the anode product by heating at 650°C. The crystallized anode product was made into a solid wafer by pressing it at 350,000 psi, and electrical measurements…
H. van Olphen, M. B. M'Ewen and M. I. Pratt, Trans. Faraday Soc., 1958, 54, 144 DOI: 10.1039/TF9585400144
Phase equilibrium data have been obtained for compositions in the ternary system lying near the compound, particularly those on the orthophosphate join. It was found that "gamma zinc orthophosphate" is a ternary solid solution which has a region of stability on the orthophosphate join ranging from about 5 to about 25…
In this book, we study theoretical and practical aspects of computing methods for mathematical modelling of nonlinear systems. A number of computing techniques are considered, such as methods of operator approximation with any given accuracy; operator interpolation techniques including a non-Lagrange interpolation; me…
R. A. W. Hill, Trans. Faraday Soc., 1958, 54, 685 DOI: 10.1039/TF9585400685
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInorganic Complex Compounds Containing Polydentate Groups. XVII. Reaction of Complexes of Cobalt(II) and Quadridentate Amines with Hydroxide IonsHans B. Jonassen and Gayle T. StricklandCite this: J. Am. Chem. Soc. 1958, 80, 2, 312–315Publication Date (Print):January 1, 1958P…
The variation of line width (Delta H) and effective g factor (g/sub eff/) with cobalt content and with temperature is studied in a series of ferrites of composition Ni/sub 1- alpha/Co/sub alpha/Mn/sub 0.02/Fe/sub 1.9/O/sub 4+-/. Here alpha lies between 0 and 0.09; temperatures range from 20° to 340° C. A minimum in De…
F. G. Buttler and H. F. W. Taylor, J. Chem. Soc., 1958, 2103 DOI: 10.1039/JR9580002103
Experiments and results on the interaction of tantalum with O 2 , N 2 , and H 2 are presented. The {100} is shown to be the habit plane of the segregation of the reaction products which appear to be Ta 2 O 5 , TaN , and β TaH , respectively. The role of the gas‐metal interaction on the fracture behavior of single crys…