Materials Literature
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In Bacillus subtilis, the extracellular enzyme levansurcrase is synthesized in the presence of sucrose. A termination structure between the transcription start site and the structural gene was the apparent site for regulation by sucrose of transcription into the structural gene. Sequence analysis of the sacB leader re…
The spinel phase formed on the thermal reaction of kaolin group minerals was characterized by X‐ray quantitative analysis, lattice constant determination, and chemical analysis by analytical TEM. The spinel phase was determined to be nearly γ‐Al 2 O 3 with ∼8 wt% of SiO 2 , significantly less than previously reported.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic structure of transition-metal borides with the AlB2 structureJeremy K. Burdett, Enric. Canadell, and Gordon J. MillerCite this: J. Am. Chem. Soc. 1986, 108, 21, 6561–6568Publication Date (Print):October 1, 1986Publication History Published online1 May 2002Publishe…
Article Correlation of angular and bond length distortions in TO4 units in crystals was published on October 1, 1986 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 175, issue 1-4).
Sheet and rod stock of 304L stainless steel were tested in uniaxial tension and compression at strain rates between 10−4 s−1 and 104 s−1. To evaluate the yield locus behavior of the sheet material, multiaxial experiments were performed at a strain rate of 10−3 s−1. We have analyzed these results in terms of existing s…
Abstract Hydrotalcite-like compounds, [Mg 1-x Al x (OH) 2 ] x+ [xX − ·n H 2 O], where X − = ½CO 3 2− or OH − , were prepared by hydrothermal syntheses at <mml:math xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mnf="http://cambridge.org/core/manifest" xmlns:cup="http://contentservices.cambridge.org" xmlns:mml="http:…
Abstract Glassy isotactic propylene (PP) films of thickness up to 0.3 mm were obtained by an ultraquenching technique. The structure and properties of the as‐quenched and subsequently crystallized samples were characterized by various techniques. Electron microscopy indicates the glass has no structure larger than 25…
Abstract not Available.
Metals and alloys may experience accelerated oxidation when their surfaces are coated by a thin film of fused salt in an oxidizing gas. This mode of attack is called hot corrosion, and the most usual or dominant salt involved is sodium sulfate because of its high thermodynamic stability. The corrosive oxyanion fused s…
Machine learning (ML) is transforming all areas of science. The complex and time-consuming calculations in molecular simulations are particularly suitable for an ML revolution and have already been profoundly affected by the application of existing ML ...Read More
Myosin is identified and purified from three different established Drosophila melanogaster cell lines (Schneider's lines 2 and 3 and Kc). Purification entails lysis in a low salt, sucrose buffer that contains ATP, chromatography on DEAE-cellulose, precipitation with actin in the absence of ATP, gel filtration in a dis…
The scattering matrix, differential cross section, and the total cross section for a small nematic droplet are derived in the Rayleigh-Gans approximation. Different nematic director configurations are considered for the droplet. Those studied are the configurations which result in a spherical droplet from different mo…
Surface flashover in compressed-gas insulated systems is a much studied, but poorly explained phenomenon. In this paper we review the literature of surface flashover with primary emphasis on the understanding of physical processes leading to discharge initiation and insulator flashover under high voltage excitation. T…
The effects of X-ray atomic asphericity on derived molecular geometry have been examined for ten common substructures involving C, N, O. The Cambridge Structural Database has been used to locate pairs of X-ray (X) and neutron (N) structure determinations of the same compound. Rigid criteria based on experimental tempe…
X‐ray diffraction data are presented in support of the existence of ferroelasticity in tetragonal zirconia. Reorientation of ferroelastic domains by externally applied stress is proposed as a toughening mechanism. Toughening by this mechanism can occur in addition to transformation toughening and also explains high to…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTColloid stabilization by long grafted polymersT. A. Witten and P. A. PincusCite this: Macromolecules 1986, 19, 10, 2509–2513Publication Date (Print):October 1, 1986Publication History Published online1 May 2002Published inissue 1 October 1986https://pubs.acs.org/doi/10.1021/…
The increasing application of SF6 as an insulating gas has led to many studies on SF6 decomposition in gas-insulated equipment. In the presence-of an electric arc, spark or corona, SF6 decomposes to a wide variety of chemically active products which possess completely different properties from SF6. The accumulation of…
Abstract Several clay-organic complexes were synthesized by placing quaternary ammonium cations on smectite by cation exchange. They were then examined for their ability to adsorb phenol and several of its chlorinated congeners. The organic cations used were: hexadecylpyridinium (HDPY + ), hexadecyltri-methyl ammonium…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEquilibrium morphology of block copolymer meltsTakao Ohta and Kyozi KawasakiCite this: Macromolecules 1986, 19, 10, 2621–2632Publication Date (Print):October 1, 1986Publication History Published online1 May 2002Published inissue 1 October 1986https://pubs.acs.org/doi/10.1021…
Low voltage scanning electron microscopy is an important part of microelectronic inspection technique. This makes it possible to examine devices without changing the electrical properties, and to examine nonconducting samples such as photoresist without the use of a surface metal layer. The secondary electron imaging…