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。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnergy-Consuming Micromechanisms in the Fracture of Glassy Polymers. 2. Effect of Molecular Weight on the Fracture of PolystyreneM. Sambasivam, A. Klein, and L. H. SperlingCite this: Macromolecules 1995, 28, 1, 152–159Publication Date (Print):January 1, 1995Publication Histo…
Let <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper D Subscript k"> <mml:semantics> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msub> <mml:mi>D</mml:mi> <mml:mi>k</mml:mi> </mml:msub> </mml:mrow> <mml:annotation encoding="application/x-tex">{D_k}</mml:ann…
The effects of ion bombardment and r.f. plasma oxidation of graphite surfaces on subsequent growth and electronic properties of vacuum deposited palladium clusters have been investigated by methods of X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy with X-ray excitation (XAES). Due to the signif…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT.alpha.-Te2MoO7 as an Active Species in the Vapor-Phase Selective Oxidation of Ethyl Lactate to Pyruvate over TeO2-MoO3 CatalystsHiromu Hayashi, Shigeru Sugiyama, Naoki Masaoka, and Naoya ShigemotoCite this: Ind. Eng. Chem. Res. 1995, 34, 1, 135–139Publication Date (Print):J…
The effects of the cation distribution change on the superexchange parameters and magnetic properties of cobalt ferrite powders were investigated. The cation distribution change of cobalt ferrite powders with quenching treatment was confirmed from the Mossbauer experiments. The exchange interaction parameters, i.e. J/…
A kinetic study has been made on the reaction between a silica-containing alumina graphite refractory and low carbon molten steel by measuring mass loss of the refractory heated at 1100-1600°C and Si content of the molten steel at 1600°C where the refractory was immersed.The results are summarized as follows:(1) The r…
Six pregnane glycosides and three cardenolides were isolated as differentiation inducers using mouse myeloid leukemia (Ml) cells from Periplocae Radicis Cortex (bark of Periploca sepium BGE., Asclepiadaceae). The cardenolides showed much higher activities than the pregnane glycosides. Besides these nine compounds, com…
Seasonal changes in water chemistry and periphytic diatom assemblages were monitored for a saline, a subsaline, and freshwater lake in the central Yukon Territory. Athalassic saline lakes, such as these, are believed to be extremely rare in arctic regions. All three study lakes exhibited a gradual shoreline retreat ov…
Using (C2H5)3PbOCH2C(CH3)3 (triethyl n-pentoxy lead : TEPOL) as a new Pb precursor, PbO, PbTiO3 and PZT thin films were successfully grown by MOCVD. The main reaction for the growth of the PbO thin films was oxidation of TEPOL. PbTiO3 thin films, whose dielectric constants ranged from 50 to 200, were grown at substrat…
Pulsed electric fields are used to study the influence of a strong field on the nematic-isotropic phase transition for cyanobiphenyl and stilbene-type liquid crystals. Deviation of the electric field-induced optical anisotropy from the Kerr law is observed and it is shown that such electric fields can shift the transi…
It is well known that both the distribution and density of dislocations are affected by grain boundaries and that the stored energy of deformation is e function of the density of dislocations. Thus, the grain size affects the stored energy of deformation. In general, a fine grain-sized material has a higher dislocatio…
Reactions of µ-ethynediyldiplatinum complexes with tetracyanoethylene in refluxing benzene result in the formation of s-cis and s-trans-µ-butadiene-2,3-diyldiplatinum complexes, of which structures are established by X-ray crystallographic analysis.
Porous material of the CuX zeolite type has been synthesized and used as support for a classic antitumoral drug--cyclophosphamide (CP). The new material obtained represents a physical mixture of the two components. In vivo tests allowed biochemical and anatomopathological evaluation of antitumoral effects determined b…
After the development of the oscillating disk curemeter over 30 years ago, standard conditions for measuring scorch times (time till the onset of vulcanization) were developed. ISO 3417 and ASTM D2084 describe ts1 and ts2 test parameters which are accepted by the rubber industry as a method for measuring scorch times.…
The aim of this presentation is to review some of our recent work mostly on poly(amidoamine)s (PAAs) and some other families of polymers structurally related to PAAs of medical interest. PAAs are obtained by stepwise polyaddition of primary monoamines, or bis secondary amines, to bisacrylamides. There are several othe…
Undercooling of liquids is a common occurrence in solidification. The level of undercooling influences both the microstructural development by controlling phase selection during nucleation and the morphological evolution during the growth phase of solidification. The development of large liquid undercooling is linked…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of Rhodium Porphyrins with Lactones, Silanes, and StannanesTadashi Mizutani, Tetsuya Uesaka, and Hisanobu OgoshiCite this: Organometallics 1995, 14, 1, 341–346Publication Date (Print):January 1, 1995Publication History Published online1 May 2002Published inissue 1…
In order to investigate the relationship between the impact and static bending behaviors at low temperatures for molybdenum having different grain structures and different grain boundary strengths, the impact and static bend tests were performed for miniaturized specimens of five kinds of molybdenum. The pure molybden…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotodecomposition and Regeneration of PbI2 Nanometer-Sized Particles, Embedded in Porous Silica FilmsE. Lifshitz, M. Yassen, L. Bykov, I. Dag, and R. ChaimCite this: J. Phys. Chem. 1995, 99, 4, 1245–1250Publication Date (Print):January 1, 1995Publication History Published o…
o-phenylenediamine (o-PD) was electropolymerized on glassy carbon electrodes under a potential cycling condition. \nThe resulting polymer films mediated electrons for the reduction of molecular oxygen at pH=1.0. It was found from \nthe RDE, RRDE, and cyclic voltammetry experiments that the modified electrode…