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Distinguishing Climate in the Soil Record Using Chemical Trends in a Vertisol Climosequence from the Texas Coast Prairie, and Application to Interpreting Paleozoic Paleosols in the Appalachian Basin, U.S.A.

Steven G. Driese、Lee C. Nordt、Warren C. Lynn 等 6 位作者2005-05-01Journal of Sedimentary Research

Abstract A suite of Vertisols (clay-rich soils with high shrink-swell potential) were examined across a climosequence (climatic transect) in twelve soil pits from the Coast Prairie of Texas in order to determine if mean annual precipitation (MAP) exerts a control on the chemistry of these soils, and if the observed ch…

Geology and Paleoclimatology ResearchGroundwater and Isotope GeochemistryClay minerals and soil interactions

Enhanced Endothelial Cell Retention on Shear-Stressed Synthetic Vascular Grafts Precoated with RGD-Cross-Linked Fibrin

Johann Meinhart、Jason C. Schense、Heinrich Schima 等 7 位作者2005-05-01Tissue Engineering

Clinical in vitro endothelialization has been shown to increase the patency of synthetic vascular grafts. The shear stress resistance of the cultured autologous endothelium represents a crucial cornerstone of the concept. We investigated whether an enrichment of the precoating matrix with adhesion sites can augment en…

Aortic Disease and Treatment ApproachesElectrospun Nanofibers in Biomedical ApplicationsTissue Engineering and Regenerative Medicine

Single-molecule detection of biomolecules by surface-enhanced coherent anti-Stokes Raman scattering

Tae-Woong Koo、Selena Chan、Andrew A. Berlin2005-05-01Optics Letters

We report on the applicability of combining surface-enhanced Raman scattering (SERS) with coherent anti-Stokes Raman scattering for high-sensitivity detection of biological molecules. We found that this combination of techniques provides more than 3 orders of signal enhancement compared with SERS and permits monitorin…

Gold and Silver Nanoparticles Synthesis and ApplicationsSpectroscopy Techniques in Biomedical and Chemical ResearchProtein Interaction Studies and Fluorescence Analysis

Effect of Zinc Complexes as Activator for Sulfur Vulcanization in Various Rubbers

Geert Heideman、J. W. M. Noordermeer、Rabin Datta 等 4 位作者2005-05-01Rubber Chemistry and Technology

Abstract Because of environmental concerns, the zinc content in rubber compounds has come under scrutiny; therefore it is necessary to explore possibilities to reduce this zinc content. In this article the application of several zinc complexes as activator for sulfur vulcanization are discussed, in order to find alter…

Polymer Nanocomposites and PropertiesSynthesis and properties of polymersTribology and Wear Analysis

Study of the surface and bulk polaritons with a negative index metamaterial

Keunhan Park、Bong Jae Lee、Ceji Fu 等 4 位作者2005-05-01Journal of the Optical Society of America B

This work investigates the impact of surface and bulk polaritons on the optical properties, especially the reflectance, of a negative index metamaterial (NIM) sandwiched between different dielectric layers. Regime maps are developed to describe the polariton dispersion relations and to help understand the effect of th…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchPhotonic Crystals and Applications

The effect of block copolymer architecture on the coalescence and interfacial elasticity in compatibilized polymer blends

Ellen Van Hemelrijck、Peter Van Puyvelde、Christopher W. Macosko 等 4 位作者2005-05-01Journal of Rheology

The effect of block copolymer architecture on the suppression of droplet coalescence and on the interfacial elasticity was studied in immiscible blends of polydimethylsiloxane (PDMS) and polyisoprene (PI) with a droplet-matrix morphology. The PDMS-PI diblock copolymers used in this study to compatibilize the blends di…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesBlock Copolymer Self-Assembly

Orientation and rupture of fractal colloidal gels during start-up of steady shear flow

Ali Mohraz、Michael J. Solomon2005-05-01Journal of Rheology

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Ali Mohraz, Michael J. Solomon; Orientation and rupture of fractal colloidal gels during start-up…

Granular flow and fluidized bedsRheology and Fluid Dynamics StudiesPickering emulsions and particle stabilization

Development of a Novel Combined Catalyst and Sorbent for Hydrocarbon Reforming

Justinus A. Satrio、Brent H. Shanks、T.D. Wheelock2005-05-01Industrial & Engineering Chemistry Research

A combined catalyst and sorbent was prepared and utilized for steam reforming methane and propane in laboratory-scale systems. The material was prepared in the form of small spherical pellets having a layered structure such that each pellet consisted of a highly reactive lime or dolime core enclosed within a porous bu…

Catalytic Processes in Materials ScienceCatalysts for Methane ReformingCatalysis and Oxidation Reactions

Failure analyses of nonceramic insulators. Part 1: Brittle fracture characteristics

M. Kumosa、L. Kumosa、D. Armentrout2005-05-01IEEE Electrical Insulation Magazine

Nonceramic insulators, also referred to as composite, polymer or polymeric insulators, are used in overhead transmission lines with line voltages in the range of 69 to 735 kV. Despite the many benefits that nonceramic insulators offer in comparison with their porcelain counterparts, they can fail mechanically in servi…

High voltage insulation and dielectric phenomenaGeotechnical Engineering and Underground StructuresThermal Analysis in Power Transmission

Reduced Leakage Current in BiFeO3 Thin Films on Si Substrates Formed by a Chemical Solution Method

Sushil Kumar Singh、Hiroshi Ishiwara2005-05-01Japanese Journal of Applied Physics

BiFeO 3 (BFO) thin films were formed by depositing sol–gel solutions on Pt/Ti/SiO 2 /Si<100> substrates. Five minute annealing in a nitrogen atmosphere at 550°C was sufficient to obtain crystalline BFO films. The leakage current density in BFO films was found to decrease markedly after optimizing the process con…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsDielectric properties of ceramics

Optimization and Application of Lithium Parameters for the Reactive Force Field, ReaxFF

Sang Soo Han、Adri C. T. van Duin、William A. Goddard 等 4 位作者2005-05-01The Journal of Physical Chemistry A

To make a practical molecular dynamics (MD) simulation of the large-scale reactive chemical systems of Li-H and Li-C, we have optimized parameters of the reactive force field (ReaxFF) for these systems. The parameters for this force field were obtained from fitting to the results of density functional theory (DFT) cal…

Energetic Materials and CombustionThermal and Kinetic AnalysisMuon and positron interactions and applications

Frequency-domain homogenization of bundles of wires in 2-D magnetodynamic FE calculations

Johan Gyselinck、Patrick Dular2005-05-01IEEE Transactions on Magnetics

A general approach for the frequency-domain homogenization of multiturn windings in two-dimensional (2-D) finite element (FE) calculations is presented. First, a skin and proximity effect characterization of the individual conductors, of arbitrary cross-section and packing, is obtained using a representative 2-D FE mo…

Magnetic Properties and ApplicationsElectromagnetic Compatibility and Noise SuppressionThermal Analysis in Power Transmission

Components of Successful Lead Generation

Andrew Davis、David J. Keeling、John Steele 等 5 位作者2005-05-01Current Topics in Medicinal Chemistry

This review aims to give an overview of current good practice in the prosecution of Lead Generation. It will assess experiences across the field as judged from the contents of the limited number of peer-review disclosures to date. It will also rely heavily on the experiences of the authors from many campaigns within t…

Machine Learning in Materials Science

Supported Metals in Catalysis

James A. Anderson、Marcos Fernández–García2005-05-01Catalytic science series

With contributions from experts in supported metal catalysis from both the industry and academia, this book presents the latest developments in characterization and application of supported metals in heterogeneous catalysis. In addition to thorough and updated coverage of the traditional aspects of heterogeneous catal…

Catalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

Polyurethane networks from formiated soy polyols: Synthesis and mechanical characterization

Luciane Lemos Monteavaro、Eduardo O. da Silva、Ana P. O. Costa 等 6 位作者2005-05-01Journal of the American Oil Chemists Society

Abstract Polyurethanes can be prepared using polyols obtained from vegetable oils in natura , such as castor oil, or from functionalized vegetable oils, such as hydroxylated soybean oil. These polyurethanes have different valuable properties, determined by their chemical composition and cross‐linking density. In this…

Polymer Nanocomposites and PropertiesPolymer composites and self-healingLignin and Wood Chemistry

Fabrication of High-Density Polymer Brush on Polymer Substrate by Surface-Initiated Living Radical Polymerization

Chiaki Yoshikawa、Atsushi Goto、Yoshinobu Tsujii 等 6 位作者2005-05-01Macromolecules

A well-defined, high-density poly(2-hydroxyethyl methacrylate) (PHEMA) brush was fabricated on the surface of a poly(tetrafluoroethylene- co -hexafluoropropylene) (FEP) film by surface-initiated living radical polymerization (LRP). First, a sufficient amount of peroxides as initiating moieties were successfully introd…

Surface Modification and SuperhydrophobicityPolymer Surface Interaction StudiesAdhesion, Friction, and Surface Interactions

Miniature fiber-optic multicavity Fabry–Perot interferometric biosensor

Yan Zhang、Helen Shibru、Kristie L. Cooper 等 4 位作者2005-05-01Optics Letters

A fiber-optic sensor is designed based on multicavity Fabry-Perot interferometry for the study of optical thickness in self-assembled thin-film layers. This miniature sensor is applicable not only to the measurement of self-assembled polyelectrolyte layers but also to the immobilization of proteins such as immunoglobu…

Polymer Surface Interaction StudiesForce Microscopy Techniques and ApplicationsAcoustic Wave Resonator Technologies

Simulation of structural phase transitions by metadynamics

Roman Martoňák、Alessandro Laio、Marco Bernasconi 等 7 位作者2005-05-01Zeitschrift für Kristallographie - Crystalline Materials

Abstract We describe here in detail the recently introduced methodology for simulation of structural transitions in crystals. The applications of the new scheme are illus trated on various kinds of crystals and the advantages with respect to previous schemes are emphasized. The relevance of the new method for the prob…

Theoretical and Computational PhysicsScientific Research and DiscoveriesMaterial Properties and Failure Mechanisms

GDIS: a visualization program for molecular and periodic systems

Sean D. Fleming、Andrew L. Rohl2005-05-01Zeitschrift für Kristallographie - Crystalline Materials

Abstract GDIS is a freely available chemical visualization program for displaying molecules, periodic structures, and crystal morphologies. A key feature of the package is the mechanism for constructing and manipulating arbitrary crystal surfaces. This enables GDIS to offer a powerful tool set for computing surface an…

Zeolite Catalysis and SynthesisCrystallization and Solubility StudiesX-ray Diffraction in Crystallography

New Structural Motifs, Unusual Quenching of the Emission, and Second Harmonic Generation of Copper(I) Iodide Polymeric or Oligomeric Adducts with Para-Substituted Pyridines or trans-Stilbazoles

Elena Cariati、Dominique Roberto、Renato Ugo 等 6 位作者2005-05-01Inorganic Chemistry

The structural, emissive, and nonlinear optical properties of new CuI adducts with para-substituted trans-stilbazolic and pyridinic ligands are reported. Single-crystal X-ray diffraction results indicate that the para-substituent on the organic ligand greatly influences the structural motif by its steric (tert-butyl),…

Porphyrin and Phthalocyanine ChemistryNonlinear Optical Materials ResearchNonlinear Optical Materials Studies