Materials Literature
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Monte Carlo calculations for 108- and 256-particle Lennard-Jones systems have been carried out at 140 temperature-density points in the vicinity of the fluid-solid phase transition. Several types of initial configurations have been used, including fcc lattice arrays, disordered arrays, and combinations of lattice and…
Abstract Hydrolyzed starch–polyacrylonitrile (H‐SPAN) graft copolymers form highly viscoelastic mixtures with water, even at concentrations less than 1% by weight. In many ways these mixtures behave like ordinary polyelectrolyte solutions, but dilution experiments revealed that linear reduced viscosity–concentration p…
Results of measurements on a number of ordered FeRh alloys in the range 49.5-52 at % iron and on the ternary alloys Fe 50 Rh 47 Pd 3 and Fe 49.5 Rh 44 Ir 6.5 are reported. The magnetization and the electrical resistivity were measured at 4.2 K in semicontinuous magnetic fields up to 370 kOe and the electrical resistiv…
Compound formation in the system PbO‐SiO 2 was studied; the results are contrasted with those previously reported. Fifteen binary phases, 4 of which had not been reported, were prepared in the present study. The new phases include Pb 5 Si 8 O 21 , an orthorhombic polymorph of PbSiO 3 , Pb 3 SiO 5 , and a high‐SiO 2 ph…
The Raman measurements of the ferroelectric PbTi${\mathrm{O}}_{3}$ reported previously are extended to the ferroelectric system $({\mathrm{Pb}}_{1\ensuremath{-}x}{\mathrm{Ba}}_{x})\mathrm{Ti}{\mathrm{O}}_{3}$ including the end member BaTi${\mathrm{O}}_{3}$. The measurements were made on crystals of BaTi${\mathrm{O}}_{…
The calcium carbonate deposits of Cyanophyte, Charophyte, Chlorophyte, Phaeophyte and Rhodophyte algae have been studied with the scanning electron microscope. The SEM permitted in situ observation of these deposits, which allowed the crystal structure and the organization of the crystalline deposits to be observed. T…
A new type of 3-body calorimeter for measuring absorbed dose produced by ionizing radiation is described in detail. All three bodies rise in temperature during irradiation, and the heat absorbed by the central core is measured by standard means. Only the central core is heated during electrical calibration, but the in…
Supposing complete segregation, volume and density of the hard segment domains in thermoplastic urethane elastomers are easily calculated from the chemical composition of the elastomers. These hypothetical values may be compared with experimental small-angle X-ray findings, resulting in a realistic picture of the actu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of the quenching of the phosphorescence of tris(2,2'-bipyridine)ruthenium(II) by some cobalt(III) and ruthenium(III) complexesGil. Navon and Norman. SutinCite this: Inorg. Chem. 1974, 13, 9, 2159–2164Publication Date (Print):September 1, 1974Publication History Pub…
The renaturation of Escherichia coli K 12 tryptophanase after treatment with 8 M urea has been studied. It is shown that, during the renaturation process, an inactive as well as an active form of the protein can be obtained. The influence on the relative amounts of these two forms of factors such as temperature, the p…
Using the Monte Carlo method, we have computed the equation of state of a system of hard spherocylinders (cylinders with a hemisphere at each end), of length-to-breadth ratio equal to 3, in the isotropic liquid phase. We obtain a pressure slightly smaller than that predicted by the scaled-particle theory (SPT). The SP…
An electrically controllable diffraction mode in liquid crystals is described. The variable grating is a stable single layer of small uniform birefringent spherulitic domains imbedded in a homeotropic matrix. The size of the domains is changed by small dc or ac voltages.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConformational Characteristics of the Poly(n-alkyl isocyanates)Alan E. TonelliCite this: Macromolecules 1974, 7, 5, 628–631Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue 1 September 1974https://doi.org/10.1021/ma6004…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSilane reductions in acidic media. III. Reductions of aldehydes and ketones to alcohols and alcohol derivatives. General syntheses of alcohols, symmetrical ethers, carboxylate esters and acetamidesMichael P. Doyle, Donald J. DeBruyn, Stephen J. Donnelly, Dale A. Kooistra, Ab…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-ray photoelectron spectroscopy of some aluminosilicatesP. R. Anderson and W. E. SwartzCite this: Inorg. Chem. 1974, 13, 9, 2293–2294Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue 1 September 1974https://pubs.acs.or…
The nonlinear oscillations of a spherical gas bubble in an incompressible, viscous liquid subject to the action of a sound field are investigated by means of an asymptotic method. Approximate analytical solutions for the steady-state oscillations are presented for the fundamental mode, for the first and second subharm…
Hot-stage electron microscopy is used to study the annealing behaviour of lattice dislocations in high-angle grain boundaries in Ni, Ni 5% Al, austenitic stainless steel and Al 0·9 % Mg. The observations indicate that individual dislocations are incorporated in a boundary by a spreading of their cores or a dissociatio…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectroscopic studies and bonding model for nitric oxide complexes of iron porphyrinsB. B. Wayland and Larry W. OlsonCite this: J. Am. Chem. Soc. 1974, 96, 19, 6037–6041Publication Date (Print):September 1, 1974Publication History Published online1 May 2002Published inissue…
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