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Integral equation theory of polymer blends: Numerical investigation of molecular closure approximations

Arun Yethiraj、Kenneth S. Schweizer1993-06-01The Journal of Chemical Physics

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,…

Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesThermodynamic properties of mixtures

Pathways for photoinduced electron transfer within a mixed-metal bisporphyrin

Anthony Harriman、Valérie Heitz、Jean Pierre Sauvage1993-06-01The Journal of Physical Chemistry

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…

Electrocatalysts for Energy ConversionPhotosynthetic Processes and MechanismsPorphyrin and Phthalocyanine Chemistry

"Super" phanes

Rolf Gleiter、Detlef Kratz1993-06-01Accounts of Chemical Research

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…

Luminescence and Fluorescent MaterialsParticle accelerators and beam dynamicsElectron Spin Resonance Studies

Gadopentetate dimeglumine as an alternative contrast material for use in angiography.

Yoshinori Kinno、Kunio Odagiri、Kazuo Andoh 等 5 位作者1993-06-01American Journal of Roentgenology

Gadopentetate dimeglumine as an alternative contrast material for use in angiography.Y Kinno, K Odagiri, K Andoh, Y Itoh and K TaraoAudio Available | Share

Advanced MRI Techniques and ApplicationsCerebrovascular and Carotid Artery DiseasesLanthanide and Transition Metal Complexes

Hydrogen Bonds as a Crystal Design Element for Organic Molecular Solids with Intermolecular Ferromagnetic Interactions

Esteve Hernàndez、Montse Mas、Elı́es Molins 等 5 位作者1993-06-01Angewandte Chemie International Edition in English

OH…︁ON and H2CH…︁ON 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…

Magnetism in coordination complexesSynthesis and Properties of Aromatic CompoundsOrganic and Molecular Conductors Research

Evaluation of the kinetic parameters for styrene polymerization and their chain length dependence by kinetic simulation and pulsed laser photolysis

Mark Deady、Albert W. H. Mau、Graeme Moad 等 4 位作者1993-06-01Die Makromolekulare Chemie

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…

Mass Spectrometry Techniques and ApplicationsMachine Learning in Materials ScienceElectron and X-Ray Spectroscopy Techniques

Highly Oriented, Chemically Prepared Pb(Zr, Ti)O 3 Thin Films

Bruce A. Tuttle、James A. Voigt、D.C. Goodnow 等 9 位作者1993-06-01Journal of the American Ceramic Society

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…

Ferroelectric and Piezoelectric MaterialsPhotorefractive and Nonlinear OpticsMicrowave Dielectric Ceramics Synthesis

Calcium conductances and their role in the firing behavior of neonatal rat hypoglossal motoneurons

Félix Viana、Douglas A. Bayliss、A. J. Berger1993-06-01Journal of Neurophysiology

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…

Conducting polymers and applicationsMuscle activation and electromyography studiesNeuroscience of respiration and sleep

Volume fractions of texture components in polycrystalline materials

L. Zuo、Julie Muller、Claude Esling1993-06-01Journal of Applied Crystallography

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…

Crystallization and Solubility StudiesX-ray Diffraction in CrystallographyMaterial Properties and Applications

Crystallization and Its Effect on the Processing of Polypropylene

Tay-Yuan Chen、V.W. Wang、M.J. Bozarth1993-06-01Journal of Reinforced Plastics and Composites

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…

Polymer crystallization and propertiesRheology and Fluid Dynamics StudiesInjection Molding Process and Properties

Interaction of multiple spark-generated bubbles in a compressible liquid

J.A. Cook1993-06-01Defense Technical Information Center (DTIC)

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…

Combustion and Detonation ProcessesUltrasound and Cavitation PhenomenaElectrohydrodynamics and Fluid Dynamics

Birefringent and Dielectric Properties of [N(C2H5)4]2ZnBr4and [N(C2H5)4]2CdBr4Crystals

S. Sveleba、V. Mokryi、I. I. Polovinko 等 8 位作者1993-06-01Acta Physica Polonica A

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…

Nonlinear Optical Materials ResearchSolid-state spectroscopy and crystallographyChemical Thermodynamics and Molecular Structure

Man versus Machine for the World Checkers Championship1

Jonathan Schaeffer、Norman Treloar、Paul Lu 等 4 位作者1993-06-01ICGA Journal

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

Textile materials and evaluations

ULTRASTRUCTURE OF CHRYSODIDYMUS SYNUROIDEUS (SYNUROPHYCEAE)1

Linda E. Graham、James M. Graham、Daniel E. Wujek1993-06-01Journal of Phycology

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…

Marine and coastal ecosystemsAlgal biology and biofuel productionDiatoms and Algae Research

Methods to increase the efficiency of a metallic monolithic catalyst

Stig Andersson、Nils Herman Schoeoen1993-06-01Industrial & Engineering Chemistry Research

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…

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceNanomaterials for catalytic reactions

Thermoluminescence spectra of minerals

H.M. Rendell、Mohammad Reza Khanlary、Peter Townsend 等 5 位作者1993-06-01Mineralogical Magazine

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…

Luminescence Properties of Advanced MaterialsBuilding materials and conservationAdvanced Chemical Sensor Technologies

Antioxidants and UV stabilizers: A summary of their utilization in PVC

Frank P. Cortolano1993-06-01Journal of Vinyl Technology

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…

Polymer Science and PVC

Size of Mica Domains and Distribution of the Adsorbed Na-Ca Ions

Inma Lebron、Donald L. Suarez、C. Amrhein 等 4 位作者1993-06-01Clays and Clay Minerals

Abstract Mica domains have received less attention in the literature than smectite quasi-crystals. This study was conducted to determine whether mica crystals form domains in suspension, the conditions in which those domains exist, and the distribution of adsorbed Na and Ca ions in the domains. Particle size distribut…

Geophysical and Geoelectrical MethodsSoil and Unsaturated FlowClay minerals and soil interactions

A new vanadium(V) persulfide complex: (NEt4)[VO(S2)2(bpy)]

Stephanie L. Castro、James D. Martin、George Christou1993-06-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleA new vanadium(V) persulfide complex: (NEt4)[VO(S2)2(bpy)]Stephanie L. Castro, James D. Martin, and George ChristouCite this: Inorg. Chem. 1993, 32, 13, 2978–2980Publication Date (Print):June 1, 1993Publication History Published online1 May 2002Published inissue 1 June 1993https…

Magnetism in coordination complexesVanadium and Halogenation ChemistryOrganometallic Compounds Synthesis and Characterization

STM investigations on primary particle morphology of polyaniline

Bernhard Weßling、Renate Hiesgen、D Meißner1993-06-01Acta Polymerica

Abstract SEM investigation of polyaniline (PAni) layers showed that it is composed of around 10 nm small primary particles. This is in accordance with other earlier results.

Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors