Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of an electric field on block copolymer microstructureKarl Amundson, Eugene Helfand, Don D. Davis, Xina Quan, Sanjay S. Patel, and Steven D. SmithCite this: Macromolecules 1991, 24, 24, 6546–6548Publication Date (Print):November 1, 1991Publication History Published on…
Nerve growth factor (NGF) is critical to the development and maintenance of the peripheral nervous system, but its possible roles in other organ systems are less well characterized. We have recently shown that human epidermal melanocytes, pigment cells derived from the neural crest, express the NGF receptor (p75 NGF-R…
A new model structure is proposed for the silk I form of the crystalline domains of Bombyx mori silk fibroin and the corresponding crystal form of poly(L-Ala-Gly). It was deduced from conformational energy computations on stacked sheet structures of poly(L-Ala-Gly). The novel sheet structure contains interstrand hydro…
Core losses in rotating electrical machines have been estimated through direct use of the standard Epstein loss data of the employed magnetic laminations, without introducing empirical correcting factors. The prediction is based on a numerical finite element approach to magnetic flux distribution, coupled to a physica…
The extent to which local strain is present in the polypeptide backbone of folded protein molecules has been examined. The occurrence of steric strain associated with nonproline cis peptide bonds and energetically unfavorable main chain dihedral angles can be identified reliably from the well ordered parts of high res…
A new approach for estimating the interfacial frictional shear stress in fiber‐reinforced ceramics is presented. The approach is based upon measurement of the temperature rise which occurs during the cyclic loading of ceramic composites. This temperature rise, which is caused by the frictional slip of fibers within th…
Magnetic Properties of Spinel Ferrites Electronic Properties of Liquid, Amorphous and Quasicrystalline Alloys Invar Alloys Magnetic Recording Materials Hydrogen in Pure Metals and Solid Solutions Ternary Hydrides Soft Magnetic Metals and Alloys Permanent Magnet Materials Magnetostrictive Materials High--Density Magnet…
Abstract Decomposition of hydrogen peroxide in high‐purity water has been measured at temperatures ranging 100 to 280°C in a laboratory test loop. A first‐order decomposition kinetics has been observed in all cases, but the decomposition rates were found to vary widely, depending on the material used in the reaction c…
Recently we purified and cloned the mitogen/oncogene-activated Mr 70,000 (70K) S6 kinase from the livers of rats treated with cycloheximide (Kozma, S. C., Lane, H. A., Ferrari, S., Luther, H., Siegmann, M., and Thomas, G. (1989) EMBO J. 8, 4125-4132; Kozma, S. C., Ferrari, S., Bassand, P., Siegmann, M., Totty, N., and…
A practical method is presented for computing high-frequency ferrite core losses in the magnetic component for arbitrary voltage waveforms. The model presented requires only a few material parameters as input. To calculate ferrite hysteresis losses, a model based on empirical rules is employed. For high-frequency eddy…
1. Overview of the Apparel Industry: The Big Picture. 2. Government Regulations and Labeling: Communicating to Customers. 3. Apparel Quality: The Priority of Industry and Consumers. 4. The Mass-Production Process: The Apparel Industry at Work. 5. Shape, Silhouette, Style: Focus on Design Development. 6. Sizing and Fit…
Potential‐pH equilibria and potentiodynamic polarization studies were used to confirm that formation of complexes in and solutions produces a range of potentials at which anodic dissolution of copper occurs without formation of oxide. The interaction of benzotriazole (1 g/l) with oxide‐free copper surfaces in the chlo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular dynamics simulation of a glassy polymer surfaceKevin F. Mansfield and Doros N. TheodorouCite this: Macromolecules 1991, 24, 23, 6283–6294Publication Date (Print):November 1, 1991Publication History Published online1 May 2002Published inissue 1 November 1991https://…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface-enhanced infrared absorption of p-nitrobenzoic acid deposited on silver island films: contributions of electromagnetic and chemical mechanismsMasatoshi Osawa and Masahiko IkedaCite this: J. Phys. Chem. 1991, 95, 24, 9914–9919Publication Date (Print):November 1, 1991P…
New results are presented in the area of hysteretic modeling and experimental characterization of shape memory alloys (SMAs). A stress‐induced micromechanical phase transition occurs in SMAs that causes inelastic deformation and gives rise to a large energy‐absorbing capacity. Because it is possible to achieve large h…
Protein adsorption from human plasma was investigated on phospholipid polymers, poly (2-methacryloyloxyethyl phosphorylcholine (MPC)-co-n-butyl methacrylate (BMA) or glass by radioimmunoassay and immunogold labeling techniques. In the present studies the focus was to determine the composition and distribution of prote…
The complex permeability ( mu /sub r/) and permittivity ( epsilon /sub r/) spectra at X-band frequencies and their relationship with microwave absorbing properties are investigated in ferrite-rubber composite material. Multifrequency measurements of mu /sub r/ and epsilon /sub r/ are made by the reflection/transmissio…
The neutralization of highly charged ions during interaction with metallic surfaces is accompanied by the ejection of a large number of secondary electrons. Recent experiments demonstrate two main contributions to this electron ejection process: one from the region below the surface and the second from the above-surfa…
The specification of a new standard Crystallographic Information File (CIF) is described. Its development is based on the Self-Defining Text Archive and Retrieval (STAR) procedure [Hall (1991). J. Chem. Inf. Comput. Sci. 31, 326-333]. The CIF is a general, flexible and easily extensible free-format archive file; it is…
Abstract We have recently reported on the consecutive physisorption of anionic and cationic bipolar amphiphiles onto charged surfaces, adsorbed out of aqueous solutions [1]. Here, we extend our previous concept to multipolar compounds such as polyelectrolytes. In contrast to the bipolar amphiphile system, it is not ne…