Contribución al estudio de las normas de diferentes países para el cemento Portland. IIIg.- Preparación de probetas
No disponible
Materials Literature
文献浏览
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。
Contribución al estudio de las normas de diferentes países para el cemento Portland. IIIh.- Resistencia mecánica
No disponible
Contribución al estudio de las normas de diferentes países para el cemento Portland. IIIg.- Preparación de probetas. D) Forma de las probetas
No disponible
Contribución al estudio de las normas de diferentes países para el cemento Portland. IIIb.- Calor de hidratación
No disponible
Le Ciment de haut-fourneau est-il sujet à fausse prise? Comment la prévenir
No disponible
Contribución al estudio de las normas de diferentes países para el cemento Portland. IIIg.- Preparación de probetas. C) Preparación de probetas
No disponible
Contribución al estudio de las normas de diferentes países para el cemento Portland. V.- Apéndice
No disponible
Contribución al estudio de las normas de diferentes países para el cemento Portland. IIa.- Composición química
No disponible
Contribución al estudio de las normas de diferentes países para el cemento Portland. IIId.- Tiempo de fraguado
No disponible
Análisis y ensayos
No disponible
Kiln setting and burning. Part two
No disponible
X-Ray Study of the Graphitization of Carbon Black
A picture of the early stage of graphitization of a carbon black has been obtained from an x-ray study of a Fine Thermal (FT) carbon black heated for two hours at 2300°C. Nearest neighbor pairs of layers take on the graphite relation independently, producing both ABA and ABC sequences. There are two nearest neighbor l…
Chelate Complexes of 1,10-Phenanthroline and Related Compounds.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChelate Complexes of 1,10-Phenanthroline and Related Compounds.Warren W. Brandt, Francis P. Dwyer, and Eleanora D. GyarfasCite this: Chem. Rev. 1954, 54, 6, 959–1017Publication Date (Print):December 1, 1954Publication History Published online1 May 2002Published inissue 1 Dec…
Classical Theory of the Temperature Dependence of Magnetic Anisotropy Energy
The consequences are analyzed of the following two assumptions: (1) the effect of temperature upon magnetic anisotropy arises solely from the introduction of local deviations in the direction of magnetization; and (2) the local deviation in an elementary region is the resultant of a very large number of independent de…
The microscopy of the liquid crystalline neat and middle phases of soaps and synthetic detergents
Summary The mesomorphic or “liquid crystalline” neat and middle phases encountered in aqueous systems of soaps and synthetic detergents differ considerably in plasticity. Nevertheless, in fundamental phase studies or the examination of commercial products and processes, identification of these two phases has hitherto…
Calculation of Activation Energy of Ionic Conductivity in Silica Glasses by Classical Methods
An equation for the activation energy of ionic conduction in silica glasses is developed. The approach uses the classical ideas of ionic crystal theory and elasticity theory. The equation finally derived involves the radius and valence of the modifier ion, the lattice constant of the glass, the electronic charge, the…
Infra-red spectra of polypeptides with small side chains
Abstract The infra-red spectrum of several synthetic polypeptides with small side chains (polymers of glycine and alanine) have been examined in the region 800 to 1700 cm-1. The observations include measurements with polarized radiation on the α (folded) and β (extended) forms of poly-L-alanine; deductions from these…
The slip modes of titanium and the effect of purity on their occurrence during tensile deformation of single crystals
Abstract Single-crystal test specimens of van Arkel titanium were obtained by a modification of the strain anneal technique.The modes of slip have been identified as (101̄0) [112̄0],(101̄1) [112̄0], and (0001) [112̄0]. It has been shown that not only does the interstitial impurity affect the magnitude of the critical…
Performance of Three Types of Fabric Dust Collectors
Fabric dust collectors are used industrially for the separation of dusts and fumes from air and gases in many manufacturing and material handling processes.As a class, these collectors are generally greater than 99% efficient by weight on dusts ranging from SO microns to the submicron sizes, when inlet dust loadings e…
Studies on the Heat Conductin in Wood : The present study is a discussion on the results of investigations made hitherto by author on heat conduction in wood.
この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。