Materials Literature
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We reviewed clinical data and quantitative muscle biopsy data from infants with hypotonia and developmental delay who had relatively small type 1 muscle fibers (fiber size disproportion; FSD). Study material consisted of 49 thigh muscle specimens from 37 patients, 1 week to 11.5 years old, who had FSD diagnosed betwee…
High-field magnetisation measurements have been performed on single-crystalline samples of hexagonal Ho 2 Co 17 , Ho 2 Fe 17 and Ho 2 Co 14 Fe 3 in fields up to 40 T. In this field interval the magnetisation curves of Ho 2 Co 17 and Ho 2 Co 14 Fe 3 exhibit pronounced magnetic transitions in the hexagonal plane. The ex…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of chemical waves in the acidic bromate-malonic acid-tris(bipyridine)ruthenium(2+) system in comparison with the ferroin systemL. Kuhnert and H. J. KrugCite this: J. Phys. Chem. 1987, 91, 3, 730–733Publication Date (Print):January 1, 1987Publication History Publishe…
We present a Flory approximation for the conformation of semi-flexible linear and branched polymers in the extremely stiff limit. We show that the upper marginal dimension dc for the excluded volume effect is in general reduced in the stiff limit. In particular, for a linear chain in a good solvent we find dc = 2 in a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTZero-field magnetic susceptibility study of the magnetic phase transition in the two-dimensional ionic ferromagnet bis(benzylammonium) tetrabromochromate(II), (C6H5CH2NH3)2CrBr4Carlo Bellitto, Pasquale Filaci, and Salvatore PatrizioCite this: Inorg. Chem. 1987, 26, 1, 191–19…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, characterization, and crystal structure of a new potassium borate, KB3O5.3H2OChristopher G. SalentineCite this: Inorg. Chem. 1987, 26, 1, 128–132Publication Date (Print):January 1, 1987Publication History Published online1 May 2002Published inissue 1 January 1987h…
A study of the adsorption sites of thoria has been made using scanning transmission electronic microscopy (STEM) and Fourier-transform infrared spectroscopy (FTIR). The STEM study showed that the thoria surface was composed mainly of (110)(211) and (111) faces in about equal proportions. The infrared study of activate…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTin sulfide, tellurium iodide ((Te2)2I2), and related compounds: symmetry-controlled deformations in solid-state materialsWolfgang Tremel and Roald HoffmannCite this: Inorg. Chem. 1987, 26, 1, 118–127Publication Date (Print):January 1, 1987Publication History Published onlin…
Non-uniform multiple slip near a grain boundary plane in face centered cubic bicrystals was examined analytically. Mathematical models for movement and interaction of dislocations were introduced to have a quantitative constitutive relation describing plastic deformation of face centered cubic crystals. Then, a new co…
When the CHCl3 extract obtained by partitioning the methanolic extract of Periploca sepium between H2O and CHCl3 was subjected to column chromatography on silica gel, the antitumor activity against Sarcoma 180 ascites in mice was concentrated in the fraction eluted with CHCl3-MeOH (10 : 1). From the antitumor fraction…
Stainless steels irradiated in EBR-II at temperatures in the range 380 to 500°C tend to exhibit saturation of mechanical properties at relatively low fluence levels. At fluences on the order of 13 to 15 × 1022 n/cm2 (E > 0.1 MeV), however, there is a rapid increase in hardness just after the onset of void swell…
A monochromatic X-ray irradiation system in the 0.08-0.4 nm wavelength range is described. This uses for the first time, synchrotron radiation at the Photon Factory as an X-ray source (2.5 GeV electron storage ring). It consists of a beam shutter, a Si crystal monochromator, ionization chambers for monitoring exposure…
A 1:1 Offner mirror system is modified to work as a grating spectrometer for the infrared by placing a grating on the secondary convex mirror of the system. Slight adjustment of the configuration combined with tilt of the secondary provide the necessary degrees of freedom to correct for astigmatism of the system. Addi…
Abstract
Charge-transfer processes in iron(III) hexacyanoferrate(II), i.e. Prussian Blue (PB), have been studied by conductimetry, dielectric relaxometry (DR) and spectrophotometry. In dry PB the predominant process is sitewise electron transfer, from agreement in inferred electron-transfer frequencies, v. When wet or admixed…
Includes a full mathematical treatment of the interaction of an electromagnetic wave with a gyromagnetic ferrite material.
Abstract The crystal structure of the monoclinic form of (BEDT-TTF)(TCNQ) is determined by X-ray analysis. The donor (BEDT-TTF) and the acceptor (TCNQ) molecules are planar and form alternating stacks.
The role of natural convection daring melting of pure tin from a specially designed heater that formed a vertical wall of a rectangular cavity has been studied experimentally. Temperature and solid-liquid interface position were measured under carefully controlled conditions, and the evolution of the melting front and…
Abstract The thermal degradation of cellulose, cellulose phosphates, and cellulose thiophosphates was studied by differential thermal analysis, dynamic thermogravimetry, and derivative thermogravimetry from ambient temperature up to 750°C. Various thermodynamic parameters for different stages of thermal degradation of…
The adsorption of zinc n-, iso-, and s-dibutyldithiophosphates from n-hexadecane on iron and iron oxide powders was investigated in static conditions. The effects of ZDTP concentration, time, and temperature were examined. ZDTP adsorption isotherms on both powders are very similar and are S-type. The adsorption kineti…