Materials Literature
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Abstract Le composé nouveau Sn 2 SbS 2 I 3 a étSeA isolé dans I'étude du système SnSSbI 3 et sa structure a été déterminée. La maille est orthorhombique, groupe d'espace Cmcm avec a = 4,275(1), b = 14,059(3), c = 16,465(3) Å et Z = 4. L'affinement des paramètres atomiques par moindres carrés conduit à une valeur de R…
<div class="htmlview paragraph">The Primary Adhesively Bonded Structures Technology (PABST) program conducted by McDonnell Douglas for the USAF Plight Dynamics Laboratory has broadened the horizons for future applications of adhesive bonding to aerospace structures. A major portion of this program was concerned…
Granules have been prepared by a standard method from ternary mixtures of lactose, boric acid and either sulphanilamide, heavy kaolin or salicylic acid, using an aqueous solution of polyvinylpyrrolidone as binder. The granules were examined for size distribution and for the work required to crush larger granules from…
Abstract In the present paper we have studied the effects of curing temperature (150° and 180°C) and curing system (conventional and efficient vulcanization) on 1) the technical properties, 2) polymer-filler interaction and 3) network structure of NR-BR, NR-SBR-BR, NR-SBR blends. On the basis of cure rate and interpha…
Abstract Erstmals wurden Einkristalle von Na 3 SbO 3 und Na 3 BiO 3 (beide farblos) dargestellt. Beide Kristallisieren Kubisch, F 4 3m, mit a = 9,56 4 (Na 3 SbO 3 ) und a = 9,68 7 (Na 3 BiO 3 ), Z = 8,538 bzw. 431 hkl, R = 0,062 bzw. 0,067, MoKα, Vierkreisdiffraktometer. Die Struktur, gemäß Na 3 SbO 3 □ eine NaCl‐Vari…
Summary One hundred and fifty species of marine planktonic and littoral diatoms collected from around Porirua Harbour are recorded and illustrated. Taxonomic notes and remarks are given for some species and one new variety, Gyrosigma balticum var. turgidum is described. Twenty‐five of the species are new New Zealand r…
This paper presents an assessment of LWR fuel damage during a reactivity initiated accident and comments on the adequacy of the present USNRC design requirements. Results from early SPERT tests are reviewed and compared with results from recent computer simulations and PBF tests. A progression of fuel rod and cladding…
Summary The chemical, mineralogical, and textural changes involved in the weathering of basalt have been traced through various stages from fresh rock (which has a cation exchange capacity of 10 meq/100 g due to the presence of a swelling chlorite mineral) to reddened basaltic rubble consisting of interstratified mont…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStability, electronic spectra, and structure of the copper(II) chloride complexes in N,N-dimethylformamideMax Elleb, Jean Meullemeestre, Marie Jose Schwing-Weill, and Francois VierlingCite this: Inorg. Chem. 1980, 19, 9, 2699–2704Publication Date (Print):September 1, 1980Pub…
The effect of gamma irradiation on the release of the soluble and insoluble corrosion products was investigated with carbon steel and austenitic Type 304 stainless steel at high temperature using a small experimental loop. It was found that gamma radiation enhances the release rates of insoluble corrosion products (cr…
This study was conducted to determine the properties of selected Andosols from northeastern Japan and the factors affecting the root growth of burdock, Arctium lappa cv. Takinogawa; barley, Hordeum vulgare cv. Norin-24; and orchard grass Dactylis glomerata cv. Kitamidori grown on these soils in a greenhouse. According…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFunctional Polymers in the Generation of Colloidal Dispersions of Amorphous SeleniumThomas W. Smith and Richard A. CheathamCite this: Macromolecules 1980, 13, 5, 1203–1207Publication Date (Print):September 1, 1980Publication History Published online1 May 2002Published inissu…
Electrochemistry of tetra(aminophenyl)porphyrin covalently attached to glassy carbon and then cobalt‐metallated, was investigated in DMSO and CH 3 CN solvents in the presence of pyridine. Shifts in formal potential were used to measure complex stability constants and coordination number for the pyridine complexes of t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolybdoarsinate heteropoly complexes. Structure of the hydrogen tetramolybdodimethylarsinate(2-) anion by x-ray and neutron diffractionK. M. Barkigia, L. M. Rajkovic-Blazer, M. T. Pope, E. Prince, and C. O. QuicksallCite this: Inorg. Chem. 1980, 19, 9, 2531–2537Publication D…
Ultrasonic absorption measurements in the range 0.5--56 MHz, and measurements of velocity at 8.87 MHz, were made in collagen suspensions in which molecular integrity was preserved, in a range of concentrations 0.07--0.7% by weight, at 10 and 20 degrees C. Absorption and velocity values, per unit concentration, exhibit…
Charge localization in Ti4O7 and Fe3O4 and the respective insulating states are discussed. It is concluded that the ground state in both systems is bipolaronic. The concept of such a bipolaron is discussed and the importance of elastic interaction between two localized electrons as the dominant interaction in such sys…
Abstract The techniques of density, birefringence, and wide X‐ray diffraction were employed to characterize the microstructure of injection molded polyethylene parts. Generally, maximum crystallinity (density) occurs at the center of the molding, while the minimum crystallinity occurs near the surface. Higher densitie…
UNLABELLED: An animal model was developed to study the histology and collagen chemistry of healing cortical bone. A hole was cut through the cortex of the mid-shaft of the humerus of the adult chicken, which allowed for repair at a mechanically stable site. After one to two weeks the collagen of the repair tissue, whi…
A three dimensional finite element formulation and algorithm for the solution of 3-d magnetic fields was developed. The method is presented here with applications to determination of local flux densities in a 3-d field pattern, as well as global energy calculations of an air cored coil. The results compare well with c…
Summary The maghemitization process, by which magnetic minerals with spinel structure become progressively oxidized but remain single phase spinels, seems to be an important feature of submarine weathering. Whether the process takes place by the minerals acquiring oxygen from the sea-water or by the sea-water leaching…