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Three‐dimensional, sequence order‐independent structural comparison of a serine protease against the crystallographic database reveals active site similarities: Potential implications to evolution and to protein folding

Daniel Fischer、Haim J. Wolfson、Shuo Liang Lin 等 4 位作者1994-05-01Protein Science

We have recently developed a fast approach to comparisons of 3-dimensional structures. Our method is unique, treating protein structures as collections of unconnected points (atoms) in space. It is completely independent of the amino acid sequence order. It is unconstrained by insertions, deletions, and chain directio…

Protein Structure and DynamicsGlycosylation and Glycoproteins ResearchEnzyme Structure and Function

Computer simulation studies of anisotropic systems

Andrew Emerson、G. R. Luckhurst、Shaun Gary Whatling1994-05-01Molecular Physics

The Gay Berne potential has been employed extensively in simulation studies of rod-like liquid crystals. However, the potential can be used also to study discotic liquid crystals, that is, compounds whose molecules are flattened or disc-shaped. Here we suggest a suitable parametrization for Gay-Berne discs and report…

Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesNonlinear Dynamics and Pattern Formation

On the reproducibility of glasses

Robin J. Speedy1994-05-01The Journal of Chemical Physics

The reproducibility of glasses of 500 hard spheres is examined. Most amorphous packings are shown to tend to the limiting density z=0.870±0.008 (relative to the close packed crystal). When the fluid is compressed through the glass transition, in a molecular dynamics experiment, fast enough to avoid crystallites, the e…

Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesTheoretical and Computational Physics

Simulations of forest interactions and strain hardening in FCC crystals

Benoît Devincre、L.P. Kubin1994-05-01Modelling and Simulation in Materials Science and Engineering

The strain hardening properties of FCC single crystals are examined with the help of a three-dimensional simulation of dislocation dynamics and interactions at mesoscale. The basic properties discussed are the line tension of the dislocations, the conditions at which sessile junctions are formed at the intersection of…

Microstructure and mechanical propertiesMetal Forming Simulation TechniquesMetallurgy and Material Forming

Composition Dependence of the Interaction Parameter in Isotopic Polymer Blends

J. D. Londono、A. H. Narten、G. D. Wígnall 等 7 位作者1994-05-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComposition Dependence of the Interaction Parameter in Isotopic Polymer BlendsJ. D. Londono, A. H. Narten, G. D. Wignall, K. G. Honnell, E. T. Hsieh, T. W. Johnson, and F. S. BatesCite this: Macromolecules 1994, 27, 10, 2864–2871Publication Date (Print):May 1, 1994Publicatio…

Material Properties and Applications

Biocompatibility of a biodegradable matrix used as a skin substitute: An in vivo evaluation

Gerrit J Beumer、Clemens van Blitterswijk、Maria Ponec1994-05-01Journal of Biomedical Materials Research

Synthetic biodegradable polymeric matrices, with a dense top layer and porous under-layer, made of a (poly)ether/(poly)ester (PEO:PBT) copolymer called Polyactive, and also of poly-L-lactide (PLLA), are under investigation as part of a cell-seeded skin substitute for third-degree, large-scale skin defects. The biocomp…

biodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical ApplicationsSurgical Sutures and Adhesives

Design and Synthesis of a Trifunctional Chiral Porphyrin with C2 Symmetry as a Chiral Recognition Host for Amino Acid Esters

T. Mizutani、Tadashi Ema、Takashi Tomita 等 5 位作者1994-05-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDesign and Synthesis of a Trifunctional Chiral Porphyrin with C2 Symmetry as a Chiral Recognition Host for Amino Acid EstersTadashi Mizutani, Tadashi Ema, Takashi Tomita, Yasuhisa Kuroda, and Hisanobu OgoshiCite this: J. Am. Chem. Soc. 1994, 116, 10, 4240–4250Publication Dat…

Molecular Sensors and Ion DetectionPorphyrin and Phthalocyanine ChemistryAnalytical Chemistry and Chromatography

Effect of Fiber Architecture Parameters on Deformation Fields and Elastic Moduli of 2-D Braided Composites

Rajiv A. Naik、Peter Ifju、John E. Masters1994-05-01Journal of Composite Materials

The effects of various braiding parameters for 2-D triaxially braided textile composites were systematically investigated both experimentally and analytically. Four different fiber architectures designed to provide a direct comparison of the effects of braid angle, yarn size and axial yarn content were tested. Moiré i…

Mechanical Behavior of CompositesTextile materials and evaluationsStructural Analysis and Optimization

Environmental Effects on Nonlinear Optical Chromophore Performance. Calculation of Molecular Quadratic Hyperpolarizabilities in Solvating Media

Santo Di Bella、Tobin J. Marks、Mark A. Ratner1994-05-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnvironmental Effects on Nonlinear Optical Chromophore Performance. Calculation of Molecular Quadratic Hyperpolarizabilities in Solvating MediaSanto Di Bella, Tobin J. Marks, and Mark A. RatnerCite this: J. Am. Chem. Soc. 1994, 116, 10, 4440–4445Publication Date (Print):May…

Nonlinear Optical Materials ResearchOptical Polarization and EllipsometryOptical and Acousto-Optic Technologies

Chemistry and Physics of a Molecular-Based Magnet Containing Three Spin Carriers, with a Fully Interlocked Structure

Humberto O. Stumpf、Lahcène Ouahab、Pei Yu 等 5 位作者1994-05-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry and Physics of a Molecular-Based Magnet Containing Three Spin Carriers, with a Fully Interlocked StructureHumberto O. Stumpf, Lahcene Ouahab, Yu Pei, Pierre Bergerat, and Olivier KahnCite this: J. Am. Chem. Soc. 1994, 116, 9, 3866–3874Publication Date (Print):May 1…

Quantum and electron transport phenomenaMagnetism in coordination complexesElectron Spin Resonance Studies

The Dispersion of Carbon Black in Rubber Part IV. The Kinetics of Carbon Black Dispersion in Various Polymers

A. Y. Coran、Frederick Ignatz‐Hoover、P. Smakula1994-05-01Rubber Chemistry and Technology

Abstract A rapid technique for evaluating the rate and state of dispersion of carbon black in natural rubber has been extended to study the dispersion of carbon black in various polymers. The technique measures the extent and rate of dispersion of the black in the rubber. The kinetics of dispersion was characterized f…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesEpoxy Resin Curing Processes

Spectroscopic Characterization of the Fe/ZrO2 System: 1. CO Adsorption

E. Guglielminotti1994-05-01The Journal of Physical Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectroscopic Characterization of the Fe/ZrO2 System: 1. CO AdsorptionEugenio GuglielminottiCite this: J. Phys. Chem. 1994, 98, 18, 4884–4891Publication Date (Print):May 1, 1994Publication History Published online1 May 2002Published inissue 1 May 1994https://doi.org/10.1021/…

Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

Conformational Order in Molten Amorphous Poly(ethyl methacrylate)

Andrzej S. Kulik、D. Radloff、H. W. Spieß1994-05-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTConformational Order in Molten Amorphous Poly(ethyl methacrylate)Andrzej S. Kulik, Detlev Radloff, and Hans W. SpiessCite this: Macromolecules 1994, 27, 11, 3111–3113Publication Date (Print):May 1, 1994Publication History Published online1 May 2002Published inissue 1 May 199…

Material Properties and ApplicationsPigment Synthesis and PropertiesMaterial Science and Thermodynamics

Microstructure and Mechanical Properties of Mechanically Alloyed Intermetallic Me,Si-Al Alloys

G. Frommeyer、S. Beer、Kersten von Oldenburg1994-05-01International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde)

Article Microstructure and Mechanical Properties of Mechanically Alloyed Intermetallic Me,Si-Al Alloys was published on May 1, 1994 in the journal International Journal of Materials Research (volume 85, issue 5).

Magnesium Alloys: Properties and ApplicationsAluminum Alloy Microstructure PropertiesAluminum Alloys Composites Properties

Mechanism of antifoaming action of simethicone

Ljerka Brečević、Ingrid Bošan‐Kilibarda、F. Strajnar1994-05-01Journal of Applied Toxicology

The mechanism of the foam-inhibiting action of simethicone, mainly used against flatulence, has been studied. Its effect on foaming systems containing synthetic gastric juice and a surface-active substance (anionic surfactant, cationic surfactant, soap solution) was quantitated by measuring the surface tension, foam s…

Surface Modification and SuperhydrophobicitySurfactants and Colloidal SystemsPickering emulsions and particle stabilization

Fabrication of low-loss IR-transmitting Ge/sub 30/As/sub 10/Se/sub 30/Te/sub 30/ glass fibers

Jasbinder S. Sanghera、V.Q. Nguyen、P.C. Pureza 等 6 位作者1994-05-01Journal of Lightwave Technology

Improved purification and processing techniques have been utilized to fabricate Ge/sub 30/As/sub 10/Se/sub 30/Te/sub 30/ glass fibers with a minimum loss of O.11 dB/m at 6.6 /spl mu/m. This is the lowest loss reported for any telluride glass fiber in the infrared region. Furthermore, the fibers exhibit less than 1 dB/…

Glass properties and applicationsThin-Film Transistor TechnologiesPhase-change materials and chalcogenides

An analysis by direct numerical simulation of the effects of particle morphology on the shock compaction of copper powder

David J. Benson1994-05-01Modelling and Simulation in Materials Science and Engineering

Shock processing consolidates powders at high dynamic pressures over a very short time span. In contrast to conventional sintering, the temperature distribution in the particles is not uniform. The temperature increase at a material point is caused by the mechanical work associated with the compression and plastic flo…

High-pressure geophysics and materialsHigh-Velocity Impact and Material BehaviorPowder Metallurgy Techniques and Materials

PlanarXY-model dynamics in a nematic liquid crystal system

A. N. Pargellis、Susannah Green、Bernard Yurke1994-05-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

We have constructed a nematic liquid crystal system that exhibits the dynamics of a two-dimensional XY model. The system consists of liquid crystal material placed between two sapphire windows coated with homeotropic alignment material. By holding the windows at two different temperatures, a thermal gradient can be ma…

Liquid Crystal Research AdvancementsTheoretical and Computational PhysicsNonlinear Dynamics and Pattern Formation

Indentation Studies on Y 2 O 3 ‐Stabilized ZrO 2 : II, Toughness Determination from Stable Growth of Indentation‐Induced Cracks

Gerhard W. Dransmann、R. W. Steinbrech、Antonia Pajares 等 6 位作者1994-05-01Journal of the American Ceramic Society

Stable indentation cracks were grown in four‐point bend tests to study the fracture toughness of two Y 2 O 3 ‐stabilized ZrO 2 ceramics containing 3 and 4 mol% Y 2 O 3 . By combining microscopic in situ stable crack growth observations at discrete stresses with crack profile measurements, the dependence of toughness o…

Advanced ceramic materials synthesisMetal and Thin Film MechanicsAdvanced materials and composites