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Environmental Organic Chemistry: Illustrative Examples, Problems, and Case Studies

Philip M. Gschwend、Dieter M. Imboden、René P. Schwarzenbach1995-05-08Medical Entomology and Zoology

As the perfect complement to the highly acclaimed Environmental Organic Chemistry, this companion volume enriches the textbook with illustrative examples, applications, practical problems, and case studies. Expanded to include treatment of groundwater systems, rivers, and porous media, this work may also serve as a va…

Diatoms and Algae Research

Unwinding Scaling Violations in Phase Ordering

Andrew D. Rutenberg、A. J. Bray1995-05-08Physical Review Letters

The one-dimensional $\mathrm{O}(2)$ model is the simplest example of a system with topological textures. The model exhibits anomalous ordering dynamics due to the appearance of two characteristic length scales: the phase coherence length $L\ensuremath{\sim}{t}^{1/z}$ and the phase winding length ${L}_{w}\ensuremath{\s…

Solidification and crystal growth phenomenaBlock Copolymer Self-Assemblynanoparticles nucleation surface interactions

Thickness dependence of the coercive electric field of laser ablated niobium-doped lead-zirconium-titanate films

C. Björmander、K. Sreenivas、M. Duan 等 5 位作者1995-05-08Applied Physics Letters

Thickness dependence (over the range d=1.05 to 0.02 μm) of the coercive electric fields, Ec, of niobium-doped lead-zirconium-titanate (PNZT) films has been investigated in pulsed laser ablated c-axis-oriented PNZT/YBa2Cu3O7−x heterostructures deposited on LaAlO3 substrates. Our studies show that Ec has a d−2/3 depende…

Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesAdhesion, Friction, and Surface Interactions

Superconductivity and gaint negative magnetoresistance in YBa2Cu3O7/La0.67Ba0.33MnO3 superlattices

G. Jakob、V. V. Moshchalkov、Y. Bruynseraede1995-05-08Applied Physics Letters

It is shown that the recently discovered giant negative magnetoresistance (GMR) effects in ferromagnetic La1−xMxMnO3 (M=Ca,Sr,Ba) are compatible with the existence of high Tc superconductivity in c-axis oriented YBa2Cu3O7/La0.67Ba0.33MnO3 superlattices. From magnetoresistivity measurements we deduce that above Tc the…

Physics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics

Theory of the Effects of Rapid Thermal Annealing on Thin-Film Crystallization

E. K. F. Dang、R. J. Gooding1995-05-08Physical Review Letters

The crystallization of amorphous thin films by annealing can sometimes be greatly aided by rapidly bringing the films up to the annealing temperature, so-called rapid thermal annealing (RTA). We have modeled this phenomenon for lead zirconate titanate thin films, incorporating the presence of a long-lived secondary cr…

Material Dynamics and PropertiesTheoretical and Computational Physicsnanoparticles nucleation surface interactions

Optical Properties of Ultrathin Crystalline and Amorphous Silicon Films

Hien V. Nguyen、Yiwei Lu、Sangbo Kim 等 5 位作者1995-05-08Physical Review Letters

The complex dielectric functions $\left(2<h\ensuremath{\nu}<4\mathrm{eV}\right)$ of ultrathin crystalline silicon $\left(c\ensuremath{-}\mathrm{Si}\right)$ and amorphous silicon $\left(a\ensuremath{-}\mathrm{S}\mathrm{i}:\mathrm{H}\right)$ films consisting of isolated clusters have been measured at 250 \ifmmode^…

Semiconductor materials and devicesThin-Film Transistor TechnologiesSilicon Nanostructures and Photoluminescence

THE EFFECT OF WORT pH ON COPPER FINING PERFORMANCE

R. V. Leather、I. L. WARD、C. J. Dale1995-05-06Journal of the Institute of Brewing

Copper fining trials with ale and lager worts under conditions whereby the pH of wort was artificially manipulated prior to fining, demonstrated that the optimal copper fining rate decreased with increasing values of wort pH. Clarification of acidified worts (pH<4.5) was poor regardless of the rate of copper finings a…

Dyeing and Modifying Textile FibersPlant Reproductive BiologySilk-based biomaterials and applications

Reduction of Nitrogen Oxide Emissions

Umit S. Ozkan1、Sanjay K. Agarwal2、George Marcelin1995-05-05ACS symposium series

Environmental regulations are requiring the commercial deployment of technologies for the control of nitrogen oxides emissions from stationary sources and are creating opportunities for the development of new technologies. This chapter provides an industrial perspective on the regulatory picture, discusses commerciall…

Catalytic Processes in Materials Science

NOx Control from Stationary Sources

Carmo J. Pereira、Michael D. Amiridis1995-05-05ACS symposium series

Environmental regulations are requiring the commercial deployment of technologies for the control of nitrogen oxides emissions from stationary sources and are creating opportunities for the development of new technologies. This chapter provides an industrial perspective on the regulatory picture, discusses commerciall…

Catalytic Processes in Materials Science

Reversibility and the Mechanism of Protein Adsorption

Willem Norde、Charles A. Haynes1995-05-05ACS symposium series

Detailed adsorption isotherm data are combined with thermodynamic arguments in an effort to determine whether protein adsorption to solids is a reversible or irreversible process. We then examine the dominant driving forces for protein adsorption and present a thermodynamic framework for understanding the protein-adso…

Calcium Carbonate Crystallization and Inhibition

<title>Experimental and analytical studies of shape-memory alloy dampers for structural control</title>

Peter W. Clark、Ian D. Aiken、James M. Kelly 等 5 位作者1995-05-05Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

In the wake of damaging earthquakes in both the United States and Japan over the past year, the performance of structures, in addition to traditional life-safety concerns, has become an important issue for designers and owners. Many possible approaches to enhancing the seismic performance of structures have been propo…

Shape Memory Alloy TransformationsMasonry and Concrete Structural AnalysisStructural Engineering and Vibration Analysis

Chemical Hardness, Linear Response, and Pseudopotential Transferability

A. Filippetti、David Vanderbilt、W. Zhong 等 5 位作者1995-05-05arXiv

We propose a systematic method of analyzing pseudopotential transferability based on linear-response properties of the free atom, including self-consistent chemical hardness and polarizability. Our calculation of hardness extends the approach of Teter\cite{teter} not only by including self-consistency, but also by gen…

Materials Sciencemtrl-th

Corrosion Resistance of Stainless Steels

C. P. Dillon1995-05-04Medical Entomology and Zoology

Part 1 Alloy characteristics: the nature of stainless steels and nickel-rich alloys corrosion effects of fabrication/welding. Part 2 Aqueous environments: aqueous corrosion fossil fuel combustion power and heat. Part 3 Oil and gas operations: oilfield applications of stainless steel petroleum refining. Part 4 Process…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses

Viscosities of the Gay-Berne nematic liquid crystal

A. M. Smondyrev、G. B. Loriot、R. A. Pelcovits1995-05-04arXiv

We present molecular dynamics simulation measurements of the viscosities of the Gay-Berne phenomenological model of liquid crystals in the nematic and isotropic phases. The temperature dependence of the rotational and shear viscosities, including the nonmonotonic behavior of one shear viscosity are in good agreement w…

chem-phcond-matmtrl-th

Food Macromolecules and Colloids

作者信息未提供1995-05-03Royal Society of Chemistry eBooks

Food macromolecules play a crucial role in the formulation of a wide range of food products such as beverages, bread, cheese, dressings, desserts, ice-cream, and spreads. This book presents the very latest research in the area and is unique in covering both proteins and polysaccharides in the same volume. Specifically…

biodegradable polymer synthesis and propertiesPolysaccharides Composition and Applications

Food Macromolecules and Colloids

作者信息未提供1995-05-03Royal Society of Chemistry eBooks

Introduction Adsorbed Layers Protein Interactions and Functionality Emulsions Foams Mixed Biopolymer Systems Gels and Networks Rheological and Mechanical Properties Glasses Concluding Remarks Subject Index.

biodegradable polymer synthesis and propertiesPickering emulsions and particle stabilization

Magnetic Raman Scattering in Two-Dimensional Spin-1/2 Heisenberg Antiferromagnets: Spectral Shape Anomaly and Magnetostrictive Effects

Franco Nori、Roberto Merlin、Stephan Haas 等 5 位作者1995-05-03arXiv

We calculate the Raman spectrum of the two-dimensional (2D) spin-1/2 Heisenberg antiferromagnet by exact diagonalization and quantum Monte Carlo techniques on clusters of up to 144 sites and, on a 16-site cluster, by considering the phonon-magnon interaction which leads to random fluctuations of the exchange integral.…

Materials ScienceSuperconductivity

Synthesis and characterization of fluorinated poly(imide–amide–sulfone)s

M. Brumă、Frank W. Mercer、J Fitch 等 4 位作者1995-05-02Journal of Applied Polymer Science

Abstract A series of new, fluorinated poly(imide–amide–sulfone)s has been synthesized by solution polycondensation of aromatic diamines containing sulfone groups with diacid chlorides incorporating both imide and hexafluoroisopropylidene units. These polymers are soluble in polar amidic solvents, and their solutions c…

Synthesis and properties of polymersTribology and Wear AnalysisSilicone and Siloxane Chemistry

Aldehyde‐Appended Tetraphenylporphyrin: A New Building Block for Porphyrin Arrays

Anthony K. Burrell、David L. Officer、David C. W. Reid1995-05-02Angewandte Chemie International Edition in English

Porphyrin arrays may act as light-harvesting devices which mimic the photosynthetic capture of light. Until now the construction of a variety of arrays has been restricted by the lack of suitable methodology for porphyrin synthesis. A fully conjugated, aldehyde-appended porphyrin building block has been made and its p…

Photosynthetic Processes and MechanismsPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials

Effects of processing parameters on material properties of mechanically processed polyamide

Junjie Pan、William J. Shaw1995-05-02Journal of Applied Polymer Science

Abstract A semicrystalline polyamide polymer was processed using a new technique known as mechanical alloying. The material processed by this technique was first introduced into a high‐energy ball mill and ground over long periods of time, resulting in the production of extremely fine powders. These powders were subse…

Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties