Materials Literature
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The average internal magnetic field H i inside a multidomain (MD) grain is the sum of the applied field H o and a demagnetizing field involving the demagnetizing factor N of the grain. It is shown that N MD governing MD wall displacements is not the same as N SD for single‐domain (SD) rotations of the same grain when…
AC susceptibility and 57 Fe Mossbauer spectroscopy measurements are reported for Fe 2+ aluminosilicate glasses. The frequency dependence of T f (over a range from 10 to 10 8 Hz) is described by a Fulcher law. This indicates a progressive spin freezing at T f , comparable with results reported in Co and Mn aluminosilic…
To quantitate the concentration of fibronectin in blood components to determine if the fibronectin present in liquid and frozen stored blood products deteriorates in vitro, we measured the concentration of this opsonic protein at the beginning and at the end of storage. In addition, electroblotting studies were perfor…
In order to investigate the effects of environmental factors on the atmospheric corrosion of carbon steel in Toyosaka city, Niigata prefecture, the rate of corrosion and the cocentrations of chemical pollutants in atmosphere were determined at 15 sites and the data of some meteorological elements were obtained for thr…
The kinetics of the reaction of both the tetragonal and orthorhombic modifications of lead(II) oxide with hydrogen bromide at a pressure of 1.33 kN m–2 have been studied in the temperature range 398–548 K. Additionally, the reaction with the orthorhombic modification has been examined at HBr pressures of 0.67, 3.33 an…
Experiments have been conducted at ORNL with highly irradiated light-water reactor (PWR and BWR) fuel rod segments to investigate fission product release in steam in the temperature range 500 to 2000/sup 0/C. Objectives were to quantify and characterize the releases under conditions postulated for LOCA) and severe acc…
Commercially pure aluminum specimens were anodically oxidized in a 13M H2SO4 solution at 20°C by applying a constant current density of 1A·dm-2, the voltage attained being 36-38V. The composition and properties of the oxide formed were investigated by chemical analysis, electrochemical techniques, thermogravimetric an…
Abstract Calculations for nonequilibrium stages were systematized via material balances for multicomponent mixing, which is applicable in the absence of sorption. The resulting treatment is quite complex with unequal stages but much simpler when the stages are equal. It allows solving complex solid/liquid washing prob…
We present a numerical model, based on Maxwell's equations, for calculating transverse field losses in multifilamentary wires.
Abstract This paper gives a contribution to the crystallographic characterization of the Na 1+ x Zr 2 Si x P 3‐ x O 12 system, useful e.g. to analyze the right stoichiometric composition of a synthesized sample concerning this family of compounds, by powders X‐ray diffraction analysis. In the paper relations are in fa…
The commercially pure grades of titanium satisfy a wide range of engineering applications due to their excellent corrosion resistance, good mechanical properties, excellent fabricability, and competitive costs. As is the case for most metal systems, alloying of titanium greatly extends its usefulness. This is illustra…
Abstract Darstellung und spektroskopische Eigenschaften der Verbindungen 2, 3 , des nichtsubstituierten Azulenopseudophenalenons 4 sowie der Azulenderivate 5, 6, 7 und 8 werden beschrieben; ausgehend von dem 4‐Azulenyl‐dimethylthioether 5 wurden die weiteren Azulenderivate 9, 10, 11 erhalten. Reaktionen an der Carbony…
Miniaturization has made it possible for electronics to penetrate society more widely and deeply than ever before. Pocket calculators, electronic watches, miniature colour television receivers and the like are only some of the examples of the miniaturization of electronics of which the general public first became awar…
The CNDO method for transition metals in the UHF version has been used to study the equilibrium of configuration isomers of tetrahedral and square-planar tetrafluoro and tetrabromo complexes of the first transition row atoms in the oxidation degree II (Mn(II), Fe(II), Co(II), Ni(II), Cu(II) both in low-spin and in hig…
Measurements of creep by the indentation with Knoop indenter were performed for sintered UO2 pellets before and after irradiation and a non-irradiated single crystal with an applied load of 50 g. Room temperature creep of non-irradiated sinters included grain boundary sliding. The creep at the lowest dose (7.8×1014 fi…
Zr-0.5 wt% Nb alloy in the α-solid solution condition was electron irradiated at 4.5 K with 3 MeV electrons. Interaction of migrating self-interstitials with the solute atoms was determined by examining the residual-resistivity recovery behaviour of this irradiated alloy. It was found that niobium atoms act as effecti…
高分解能蛍光X線装置で幾つかの化合物のAlKαスペクトルを測定し, AlKαによるAlイオンの配位状態分析方法について詳細な検討を行った. その結果, まず, AlKαのシフトとプロファイル両方から単一配位と混合配位状態の判別方法を確立した. また, アンダルサイト中の5配位Alイオンの測定結果と分子軌道法による理論計算結果により, 5配位Alイオンのシフトは4配位と6配位のシフト領域の間の中間領域に入ることを証明した. それを踏まえ, シリマナイト中のAlイオンは5配位ではなく, 4配位と6配位の混合であることと, CaO・6Al2O3中のAlイオンは4配位と6配位の混合ではなく, 5配位と6配位の混合であることを明らかにした.…
Observations concerning contact dermatitis to derivatives of isothiazolin-3-one are reported. A systematic review of the literature of previously published cases is reported. A verified contact dermatitis to benzisothiazolin-3-one of a laborer in a rubber factory is discussed. Another case of occupational dermatitis c…
The effect of the spherical aberration on an electron probe with a moderate Gaussian diameter of 4.4 nm was investigated. The probe diameter was measured from the blurring of the bright field STEM image of the sharp edge of the molybdenum trioxide crystal plate for various convergence semi-angles of the probe ranging…
Pour mieux comprendre les réactions naturelles entre solutions et plagioclases, on a étudié expérimentalement la réaction 2NaAlSi3O8 + CaCl2 ⇌ CaAl2Si2O8 + 4SiO2 + 2NaCl On approche l'équilibre en partant d'une solution purement calcique et d'un gel sodi-calcique, car la réaction est rapide dans le sens de la formatio…