Materials Literature
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An intermetallic compound of zirconium-cobalt was prepared, and the pressure-composition isotherms for the ZrCo-H system were measured in the pressure range from 10 Pa (0.1 Torr) to ∼130 kPa (1000 Torr) and in the temperature range from 130 to 400°C. The equilibrium hydrogen pressures of plateaus under the experimenta…
Abstract The review is concerned primarily with some aspects of mixing in continuous crystallizers and recognizes the central importance of the interplay between the mixing and crystallization (or precipitation) processes in the design and performance evaluation of industrial crystallizers. The paper adopts a unifying…
In patients with resistant malignant tumors, we performed a pilot trial of intravenous infusion of a water-insoluble cytostatic agent, NSC 251635, entrapped in large volumes of liposomes made of egg yolk lecithin, cholesterol, and stearylamine (4:3:1). Forty liposome infusions were given to 14 patients in 38 courses.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSedimentation classification of silver colloids for surface-enhanced Raman scatteringRong Sheng. Sheng, Ling. Zhu, and Michael D. MorrisCite this: Anal. Chem. 1986, 58, 6, 1116–1119Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published in…
Several freshwater species of Synedra Ehrenb. have been investigated using light and electron microscopy. The morphology of the vegetative valve and girdle region is discussed and an evaluation of the taxonomic position of Fragilaria ungeriana Grun. is made in the light of new evidence. Homologies have been identified…
High‐speed photography (framing rate of 10 6 s ‐1 ) has been used to follow the formation and growth of damage in a number of oxide glasses when impacted with 1‐mm‐diameter steel balls at velocities of 150 m· s ‐1 or higher. Silicate, germanate, and borate glasses were studied in order to clarify the importance of “an…
A method for immobilizing protein crystals has been devised for determining face growth rates, and used to investigate the growth kinetics of hen egg white lysozyme crystals. Growth rates were determined at 22 degrees C in 0.1 M sodium acetate, 5% NaCl, pH 4.0, on the visually identified (110) face of tetragonal lysoz…
Many desirable features of an alkyl azide synthesis—among other things reaction at rom temperature in organic solvents, work-up without introduction of heat—are combined in the use of the novel “azidizing” polymer 1. The polymer 1 was prepared from Amberlite IR-400 and NaN3, allowed to react in ca. tenfold excess with…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHypervalent silicon hydrides: SiH5-David J. Hajdasz and Robert R. SquiresCite this: J. Am. Chem. Soc. 1986, 108, 11, 3139–3140Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published inissue 1 May 1986https://pubs.acs.org/doi/10.1021/ja0027…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDirect determination by tungsten-183 NMR of the locations of added electrons in ESR-silent heteropoly blues. Chemical shifts and relaxation times in polysite mixed-valence transition metal speciesMariusz. Kozik, Charles F. Hammer, and Louis C. W. BakerCite this: J. Am. Chem.…
Using thermodynamic and kinetic considerations, we explain the quasiequilibrium, morphological, and structural characteristics of thermally induced oxide precipitates in Czochralski silicon. A model based upon the formation of Frenkel defects at the silicon/silica interface is used to explain the experimentally observ…
Abstract A new molecular superconductor based on BEDT-TTF molecule was prepared electrochemically by using the mixed supporting electrolyte, (n-C4H9)4NI3 and (n-C4H8)4NAuI2. The superconducting transition takes place at ambient pressure at 3.6 K. X-Ray diffraction patterns show that the system can be approximately ass…
The initial events occurring at the blood-polymer interface were examined using a canine ex vivo arteriovenous shunt model. Thrombogenic (fibrinogen) and nonthrombogenic (albumin) proteins were preadsorbed on poly(vinyl chloride), polyethylene, and silicone rubber shunt surfaces, and the blood responses were analyzed…
We study the problem of velocity and shape selection in the growth of dendritic crystals. We demonstrate that the presence of surface tension destroys the Ivantsov family of solutions at all but a single velocity. This occurs at all undercoolings and for both two-dimensional and axisymmetric three-dimensional dendrite…
The maximum entropy method (MEM) is used to analyze quasielastic light scattering correlation functions. The central problem, in such data analysis, is the recovery of the distribution of exponentials describing the decay of the correlation function (i.e., inverting the Laplace transform). MEM is shown to give a high-…
Ceruloplasmin (CP) is a copper-binding protein in vertebrate plasma. It is the product of an intragenic triplication and is composed of three homologous domains. Oligonucleotide probes constructed according to published amino acid sequences were used to identify cDNA clones encoding human CP. Two clones, CP-1 and CP-2…
First, we demonstrate that careful simulations of fluids have enough accuracy that the resulting radial distribution function can be used to test inversion methods. Second, we introduce a method which allows extraction of the pair interaction starting from structural data for simple liquids even under triple-point con…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInteraction between copper(II) ions through the azido bridge: concept of spin polarization and ab initio calculations on model systemsMarie France. Charlot, Olivier. Kahn, Max. Chaillet, and Christiane. LarrieuCite this: J. Am. Chem. Soc. 1986, 108, 10, 2574–2581Publication…
Vacuum-deposited thin films have a columnar structure that includes appreciable void volume. This structure is responsible for many differences between the properties of materials in the form of thin films and in bulk. Refractive index is usually reduced and is a sensitive function of preparation conditions. Films als…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFriedel-Crafts acylation of toluene and p-xylene with carboxylic acids catalyzed by zeolitesBich Chiche, Annie Finiels, Catherine Gauthier, Patrick Geneste, Jean Graille, and Daniel PiochCite this: J. Org. Chem. 1986, 51, 11, 2128–2130Publication Date (Print):May 1, 1986Publ…