Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Hydrogen transport in metals is affected by processes occurring in the bulk, the surface/bulk, and gas/surface interfaces. Several models have been proposed to explain the permeation process. Here the development of the various models is discussed and the similarities and differences among them are highlighted. By con…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNickel(I) octaethylisobacteriochlorin anion. An exceptional nucleophile. Reduction and coupling of alkyl halides by anionic and radical processes. A model for factor F-430M. C. Helvenston and C. E. CastroCite this: J. Am. Chem. Soc. 1992, 114, 22, 8490–8496Publication Date (…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPoly(organophosphazenes) with poly(alkyl ether) side groups: a study of their water solubility and the swelling characteristics of their hydrogelsHarry R. Allcock, Shawn R. Pucher, Michael L. Turner, and Richard J. FitzpatrickCite this: Macromolecules 1992, 25, 21, 5573–5577…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotochemistry of .alpha.-keto phosphate esters: photorelease of a caged cAMP.Richard S. Givens, Phillip S. Athey, L. William Kueper III, Bogdan Matuszewski, and Jie You XueCite this: J. Am. Chem. Soc. 1992, 114, 22, 8708–8710Publication Date (Print):October 1, 1992Publicati…
Many advanced composites can best be described hierarchically. In particular, the biological composites that occur in organisms are generally seen to be organized on discrete scale levels ranging from the molecular to the macroscopic. At each level the components are held together by specific interactions and organize…
Cristallisation dans Pbnm avec a=5.388, b=5.447, c=7.654A, Z=4; affinement jusqu'a R=0.028 pour l'ensemble de donnees (1) et R=0.026 pour l'ensemble de donnees (2). Les parametres structuraux et les densites electroniques sont determines a partir de deux ensembles de mesures realises independamment
mu-Crystallin is the major component of the eye lens in several Australian marsupials. The complete sequence of kangaroo mu-crystallin has now been obtained by cDNA cloning. The predicted amino acid sequence shows similarity with ornithine cyclodeaminases encoded by the tumor-inducing (Ti) plasmids of Agrobacterium tu…
The deposition rate of SiC on carbon‐coated Nicalon fibers from methyltrichlorosilane in hydrogen was measured as a function of temperature, pressure, total flow rate, and simulated reactant depletion. The results, together with kinetic information on the stability of methyltrichlorosilane, led to two conclusions: (1)…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTModels for peroxidase compound I: generation and spectroscopic characterization of new oxoferryl porphyrin .pi. cation radical speciesD. Mandon, R. Weiss, K. Jayaraj, A. Gold, J. Terner, E. Bill, and A. X. TrautweinCite this: Inorg. Chem. 1992, 31, 21, 4404–4409Publication D…
A fine‐grained superplastic β′‐silicon nitride solid solution (SiAlON) was found to develop elongated grains and a pronounced texture during tensile deformation at 1550°C. The texture development is well‐described by a geometrical model of grain rotation in accordance with the strain field. Once aligned, grains can th…
Three chiral compounds (n=10, 11, 12) belonging to the optically active series : 3-fluoro-4-[(R) or (S)-1-methylheptyloxy]-4'-(4$''$-alkoxy-2$''$, 3$''$-difluorobenzoyloxy) tolans (nF2BTFO1M7) have been synthesized. The helical SA* phase or TGBA phase is found in the decyloxy derivative. The most interesting compound…
We describe a quadruple-label fluorometric immunoassay for simultaneously measuring four analytes: thyroid-stimulating hormone (TSH), 17 alpha-hydroxyprogesterone (17 alpha-OHP), immunoreactive trypsin (IRT), and creatine kinase MM (CK-MM). The assay is based on immunoreagents labeled with four different lanthanide io…
Abstract Mixed-metal assemblies {NBu4[M(II)Fe(III)(ox)3]}3∞ (M = Ni (1), Fe (2), Mn, Zn) have been prepared and characterized, where NBu4+ = tetra(n-butyl)ammonium ion, ox2− = oxalate ion. Each assumes a three-dimensional network structure consisting of alternately arrayed Fe(III) and M(II) ions. The compounds 1 and 2…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLocalized orbital study on the electronic structure of phthalocyanine dimersNaoto Ishikawa, Osamu Ohno, Youkoh Kaizu, and Hiroshi KobayashiCite this: J. Phys. Chem. 1992, 96, 22, 8832–8839Publication Date (Print):October 1, 1992Publication History Published online1 May 2002P…
The synthesis of a new disc-like mesogenic compound permitted, for the first time, ferroelectric electrooptical switching in a tilted columnar liquid crystal. The spontaneous molecular dipole moment is induced by the bend between the dibenzopyrene core and part of the eight O-hexyllactic acid chains attached to it. Tw…
Cellobiohydrolase (CBH, EC 3.2.91) was purified to homogeneity from Trichoderma reesei culture fluids by means of preparative isoelectric focussing (IEF). Its isoelectric points was 4.2. The degradation product of crystalline cellulose (Avicel and cotton) was predominantly cellobiose. The action of purified endoglucan…
Carbon nanotubes were investigated by means of electron energy-loss spectroscopy. Two peaks due to the π plasmon and the π+σ plasmon were observed. The energy of the π+σ plasmon peaks varied from 22.0 eV to 24.5 eV, which roughly agrees with the average plasmon energy of graphite. A shoulder due to single electron exc…
Microbiology Society journals contain high-quality research papers and topical review articles. We are a not-for-profit publisher and we support and invest in the microbiology community, to the benefit of everyone. This supports our principal goal to develop, expand and strengthen the networks available to our members…
The role of oxygen in chemical modification and cross-linking of rat tail collagen by glucose was studied at physiological pH and temperature in vitro. Cross-linking of collagen under air depended on glucose concentration, but was inhibited under antioxidative conditions (nitrogen atmosphere with transition metal chel…
We have studied model catalysts comprised of vanadium or vanadia deposited onto both stoichiometric and reduced single-crystal TiO2(110) surfaces by using XPS, UPS, Auger, LEED and work-function measurements. Changes in the electronic and geometric structure of TiO2 supports are monitored during overlayer formation in…