Materials Literature
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Structural properties of random propylene ethylene copolymers with low ethylene contents between 0 % and 11 mol % were investigated using mainly X-ray techniques. One of the essential issues of this paper is that a cocrystallization of the comonomer units does not take place. This is based on the following observation…
After a brief review of existing models of microsegregation in the dendritic arm spaces of binary alloys, a numerical microsegregation model based on conservative variables (to account for the solidification phase change) and a coordinate transformation (to account for coarsening) is outlined. In the context of this m…
This study characterizes the time course of change in single soleus muscle fiber size and function elicited by hindlimb unweighting (HU) and analyzes the extent to which varying durations of HU altered maximal velocity of shortening (Vo), myofibrillar adenosinetriphosphatase (ATPase), and relative content of slow and…
The thermodynamics of symmetric polymer blends is investigated using the polymer reference interaction site model integral equation theory with the new molecular closures presented in the previous paper. In contrast to the atomic mean spherical approximation reported earlier by Schweizer and Curro [J. Chem. Phys. 91,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPathways for photoinduced electron transfer within a mixed-metal bisporphyrinAnthony Harriman, Valerie Heitz, and Jean Pierre SauvageCite this: J. Phys. Chem. 1993, 97, 22, 5940–5946Publication Date (Print):June 1, 1993Publication History Published online1 May 2002Published…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT"Super" phanesRolf Gleiter and Detlef KratzCite this: Acc. Chem. Res. 1993, 26, 6, 311–318Publication Date (Print):June 1, 1993Publication History Published online1 May 2002Published inissue 1 June 1993https://pubs.acs.org/doi/10.1021/ar00030a003https://doi.org/10.1021/ar000…
Gadopentetate dimeglumine as an alternative contrast material for use in angiography.Y Kinno, K Odagiri, K Andoh, Y Itoh and K TaraoAudio Available | Share
OH…︁ON and H2CH…︁ON hydrogen bonds determine the arrangement of the stable radical 1 in the solid state. This leads to a system with intermolecular ferromagnetic interactions still rare in solids composed of exclusively organic compounds. The experimental findings are consistent with properties for solid 1 predict…
Abstract Pulsed laser photolysis (PLP) has been employed to determine propagation rate constants k p for styrene polymerization in benzene over a wider temperature range (20−80°C) than previously converd. It is proposed that a small chain length dependence of k p (overall) may, in part, be a consequence of a marked ch…
We have fabricated highly oriented, chemically prepared thin films of Pb(Zr 0.04 Tio. 0.60 )O 3 (PZT 40/60) on both insulating and conducting substrates. While (100) MgO single crystals were used as the insulating substrates, the conducting substrates. were fabricated by RF magnetron sputter deposition of 100‐nm‐thick…
1. The role of calcium conductances in action potential generation and repetitive firing behavior of hypoglossal motoneurons (HMs) was investigated using intracellular recording and patch-clamp techniques in a brain stem slice preparation of neonatal rats (0-15 days old). 2. The action potential was followed by an aft…
The orientation distribution of crystallites has until now been interpreted by a small number of texture components. In the frame of the harmonic formalism, an analytical method for the accurate determination of the volume fractions of peak-type components in restricted regions is developed without recourse to additio…
In this article, the kinetics of crystallization for semi-crystalline polymers has been successfully incorporated into a cavity flow simulation. The flow resistance, in terms of filling pressure, can be significantly underestimated if crystallization is neglected during the calculation. In addition, the filling behavi…
This dissertation describes the interaction of bubbles generated by underwater electrical discharges. The oscillations of these high temperature vapor and plasma bubbles generate acoustic signatures similar to the signatures generated by air guns, underwater explosions, and combustible sources. Tasks performed by thes…
Dielectric and birefringent properties of [N(C2H5)4] 2 Z B r 4 and [N(C2H5)4]2CdBr4 crystals were investigated. It has been ascertained that two phase transitions manifest themselves in the temperature dependencies ( T ) f o r [ N ( C 2 H 5 ) 4 ] 2 C d B r 4 c r y s t a l -a s e c o n d -o r d e r t r a n s i t i o n…
In August 1992, the World Checkers Champion, Dr. Marion Tinsley, defended his title against the computer program Chinook. Through its success in human tournaments, Chinook had earned the right to play for the World Championship. Dr. Tinsley won the b
ABSTRACT A clonal isolate of Chrysodidymus synuroideus Prowse was derived form a Sphagnum bog in northern Wisconsin and maintained in culture for over 3 years. Cultured colonies consisted almost exclusively of two cells attached at the posterior, each cell bearing two unequal flagella. Correlative light and electron m…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMethods to increase the efficiency of a metallic monolithic catalystS. Lennart Andersson and Nils Herman SchoeoenCite this: Ind. Eng. Chem. Res. 1993, 32, 6, 1081–1086Publication Date (Print):June 1, 1993Publication History Published online1 May 2002Published inissue 1 June…
Abstract Thermoluminescence (TL) studies of insulators, including crystals of minerals such as calcite, quartz or zircon, have resulted in the development of a wider range of applications in the fields of radiation dosimetry and archaeological and geological dating. Most conventional TL measurements are made by record…
Abstract With the ever increasing demand for better performing products has come the enhanced use of stabilizers and stabilizer systems in both the production and processing of poly(vinylchloride). Antioxidants and chain terminators are commonly used in teh resin manufacturing to improve the initial color and overall…