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Cloning and Alternative Splicing Analysis of <italic>Bombyx mori</italic> Transformer-2 Gene using Silkworm EST Database

Baolong Niu、Zhiqi Meng、Yuezhi Tao 等 7 位作者2005-11-01Acta Biochimica et Biophysica Sinica

We have identified Bombyx mori transformer-2 gene (Bmtra-2) cDNA by blasting the EST database of B. mori. It was expressed in the whole life of the male and female silkworm and was observed as a band of 1.3 kb by Northern blot analysis. By comparing corresponding ESTs to the Bmtra-2 DNA sequence, it was revealed that…

RNA Research and SplicingViral Infectious Diseases and Gene Expression in InsectsSilk-based biomaterials and applications

The Influence of Hydrogen Bonding on the Deformation Micromechanics of Cellulose Fibers

K. Kong、S. J. Eichhorn2005-11-01Journal of Macromolecular Science Part B

K. Konga & S. J. Eichhorna* a Materials Science Centre, School of Materials , University of Manchester , Manchester, UK * Materials Science Centre, School of Materials, University of Manchester, Grosvenor Street, Manchester, M1 7HS, UK E-mail: s.j.eichhorn@manchester.ac.uk The influence of the intramolecular hydrogen…

Advanced Cellulose Research StudiesCultural Heritage Materials AnalysisMaterial Properties and Processing

Collagen/Poloxamine Hydrogels: Cytocompatibility of Embedded HepG2 Cells and Surface-Attached Endothelial Cells

Alejandro Sosnik、Brendan M. Leung、Alison P. McGuigan 等 4 位作者2005-11-01Tissue Engineering

The effects of cross-linked poloxamine hydrogels on the cellular function of embedded HepG2 cells and surface-attached endothelial cells were assessed. HepG2 cells embedded within collagen/poloxamine-methacrylate gel survived photo-cross-linking (MTT viability, 78%). There was a gradual increase in cell number during…

Electrospun Nanofibers in Biomedical ApplicationsSilk-based biomaterials and applicationsCollagen: Extraction and Characterization

Thermal Hazards of the Vilsmeier−Haack Reaction on N,N-Dimethylaniline

Marcus Bollyn2005-11-01Organic Process Research & Development

From literature data and a preliminary calorimetric study it is clear that the Vilsmeier−Haack reaction poses specific thermal hazards as both the Vilsmeier−Haack intermediate ( 1 ) in N,N- dimethylformamide ( 2 ) and the reaction mixture with N,N -dimethylaniline ( 3 ) are thermally unstable and can generate high and…

Energetic Materials and CombustionChemical Reaction MechanismsThermal and Kinetic Analysis

Active DPF Regeneration for 2007 Diesel Engines

Yougen Kong、Tom Kozakiewicz、Randy Johnson 等 8 位作者2005-11-01SAE technical papers on CD-ROM/SAE technical paper series

<div class="htmlview paragraph">A Diesel Particulate Filter (DPF) is needed to meet the Particulate Matter (PM) requirements of US EPA 2007 regulations for diesel engines. A catalyzed diesel particulate filter (cDPF or CSF) in combination with a diesel oxidation catalyst (DOC) is effective if the DOC has achieve…

Air Quality and Health ImpactsCatalytic Processes in Materials ScienceVehicle emissions and performance

Microcellular Wood Fiber Reinforced PP Composites: Cell Morphology, Surface Roughness, Impact, and Odor Properties

Andrzej K. Błędzki、Omar Faruk2005-11-01Journal of Cellular Plastics

This article presents the investigations on the cell morphology, surface roughness, impact properties, and odor concentration of microcellular wood fiber reinforced PP composites in injection molding process with different chemical foaming agents. The chemical foaming agent and wood fiber content strongly affect the m…

Natural Fiber Reinforced CompositesCellular and Composite StructuresPolymer Foaming and Composites

Development and Testing of a Silver Chloride-Impregnated Activated Carbon for Aqueous Removal and Sequestration of Iodide

Tanju Karanfil、E. Moro、Steven M. Serkiz2005-11-01Environmental Technology

Silver impregnated activated carbon (SIAC) can effectively remove iodide from water and sequester it in the form of AgI(s)). Given the extremely insoluble nature of AgI(s), the spent SIAC can be safely disposed of in land burial facilities. However, when the molar ratio of silver to iodide is greater than one, which i…

Radioactive element chemistry and processingCovalent Organic Framework ApplicationsChemical Synthesis and Characterization

Synthesis and Characterization of 3,5-Bis(2-hydroxyphenyl)-1,2,4-triazole Functionalized Tetraaryloxy Perylene Bisimide and Metal-Directed Self-Assembly

Yongjun Li、Ning Wang、Haiyang Gan 等 11 位作者2005-11-01The Journal of Organic Chemistry

[structure: see text] New perylene bisimide dyes bearing 3,5-bis(2-hydroxyphenyl)-1,2,4-triazole receptor units with different spacers have been synthesized and characterized. The fluorescence and electronic properties of these compounds have been studied. MALDI-TOF, UV-vis, and fluorescence titration experiments prov…

Molecular Sensors and Ion DetectionSupramolecular Chemistry and ComplexesLuminescence and Fluorescent Materials

A Na2WO4/H2WO4‐Based Highly Efficient Biphasic Catalyst towards Alkene Epoxidation, using Dihydrogen Peroxide as Oxidant

Palanisamy Uma Maheswari、Paul de Hoog、Ronald Hage 等 5 位作者2005-11-01Advanced Synthesis & Catalysis

Abstract The tungsten‐containing biphasic catalytic system [Na 2 WO 4 /H 2 WO 4 /PTR/chloroacetic acid] effectively epoxidizes alkenes with 50% H 2 O 2 as terminal oxidant, under organic solvent‐free conditions. The catalytic process is proposed to proceed via a dinuclear tungsten peroxo species with coordinated chlor…

Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsChemical Synthesis and Reactions

Thermal Stability of Diamond Photodiodes Using Tungsten Carbide as Schottky Contact

Meiyong Liao、José Alvarez、Yasuo Koide2005-11-01Japanese Journal of Applied Physics

Deep-ultraviolet (DUV) photodiodes are fabricated using tungsten carbide (WC) Schottky and Ti/WC ohmic contacts on lightly boron-doped homoepitaxial diamond thin films. The thermal stability of the electrical and optical properties of the photodiodes upon isothermal annealing at 500°C for 5 h in argon/air ambient is d…

Semiconductor materials and devicesDiamond and Carbon-based Materials ResearchLaser Material Processing Techniques

Crystallization on Surfaces of Well-Defined Topography

Nicola B. J. Hetherington、Alex N. Kulak、Katherine Sheard 等 4 位作者2005-11-01Langmuir

Single crystals of calcite with regular patterned surfaces comprising close-packed arrays of hemispherical cavities or domes were produced by crystallization on colloidal monolayers or PDMS replicas of these monolayers, respectively. Perfect replication of the substrate topography was achieved for all colloidal partic…

Paleontology and Stratigraphy of FossilsCalcium Carbonate Crystallization and InhibitionIron oxide chemistry and applications

Thickness and density evaluation for nanostructured thin films by glancing angle deposition

Cristina Buzea、Kate Kaminska、Gisia Beydaghyan 等 7 位作者2005-11-01Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena

Thickness evaluation is a particular challenge encountered in the fabrication of nanosculptured thin films fabricated by glancing angle deposition (GLAD). In this article, we deduce equations which allow for accurate in situ thickness monitoring of GLAD thin films deposited onto substrates tilted with respect to the d…

Metal and Thin Film MechanicsOptical Coatings and GratingsSurface Roughness and Optical Measurements

Structure — Property Behavior of New Segmented Polyurethanes and Polyureas Without Use of Chain Extenders

Derek B. Klinedinst、Emel Yılgör、İskender Yılgör 等 6 位作者2005-11-01Rubber Chemistry and Technology

Abstract New novel segmented polyurethane and polyurea copolymers have been synthesized without chain extenders and the structure-property behavior of these systems has been investigated. It is shown that by the proper choice of diisocyanate and its symmetry, one can obtain highly microphase separated systems without…

Polymer composites and self-healingSynthetic Organic Chemistry MethodsSilicone and Siloxane Chemistry

dc leakage behavior in vanadium-doped bismuth titanate thin films

Ayan Roy Chaudhuri、S. B. Krupanidhi2005-11-01Journal of Applied Physics

The dc leakage current behavior and its thickness dependence in vanadium-doped bismuth titanate thin films have been investigated over a wide range of temperatures. The leakage current behavior was explained on the basis of space-charge-limited conduction theory. The current density, calculated from the I-V characteri…

Ferroelectric and Piezoelectric MaterialsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides

Multilayer Ni‐P Coating for Improving the Corrosion Resistance of AZ91D Magnesium Alloy

Cheng Gu、Jian Xiang Lian、Zhongming Jiang2005-11-01Advanced Engineering Materials

The purpose of this paper is to provide a high corrosion resistance multilayer coating on AZ91D magnesium alloy. The multilayer coating having a thickness of about 45 μm and consisting of different Ni‐P alloy layer was prepared by electroless deposition. The composition of the multilayer coating from substrate to surf…

Corrosion Behavior and InhibitionMagnesium Alloys: Properties and ApplicationsElectrodeposition and Electroless Coatings

Healing Surface Defects with Nanoparticle-Filled Polymer Coatings: Effect of Particle Geometry

Kurt A. Smith、Sandeep Tyagi、Anna C. Balazs2005-11-01Macromolecules

Using computational models, we investigate how the aspect ratio of nanoparticle fillers within a polymer coating affects the ability of the film to heal nanoscale defects in the underlying substrate. We first consider the interactions between the filled polymer melt and a flat surface and show that the depletion attra…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer composites and self-healing

Combined Effects of Gaseous Pollutants and Sodium Chloride Particles on the Atmospheric Corrosion of Copper

Z. Y. Chen、S. Zakipour、Daniel P. Persson 等 4 位作者2005-11-01CORROSION

The atmospheric corrosion of pure copper has been investigated after the deposition of sodium chloride (NaCl) particles and exposure to humid air containing gaseous pollutants. Microgravimetry, Fourier transform infrared (FTIR) microspectroscopy, and scanning electron microscopy with x-ray microanalysis were used for…

Corrosion Behavior and InhibitionGas Sensing Nanomaterials and SensorsHigh-Temperature Coating Behaviors

Improving chlorine disinfection of wastewater by ultrasound application

T. Blume、U. Neis2005-11-01Water Science & Technology

The presence of soluble organic material as well as high concentrations of suspended matter in waters and wastewaters affect the efficiency when chlorine is used as disinfection agent. The objective of our work is to explore to which extend ultrasonic treatment can facilitate wastewater disinfection with chlorine in o…

Ultrasound and Cavitation PhenomenaWater Quality Monitoring TechnologiesWater Quality Monitoring and Analysis

Acetate excretion during growth of Salmonella enterica on ethanolamine requires phosphotransacetylase (EutD) activity, and acetate recapture requires acetyl-CoA synthetase (Acs) and phosphotransacetylase (Pta) activities

Vincent J. Starai、Jane Garrity、Jorge C. Escalante‐Semerena2005-11-01Microbiology

This report shows that Salmonella enterica catabolizes ethanolamine to acetyl-CoA (Ac-CoA), which enters the glyoxylate bypass and tricarboxylic acid cycle for the generation of energy and central metabolites. During growth on ethanolamine, S. enterica excreted acetate, whose recapture depended on Ac-CoA synthetase (A…

Bacterial Genetics and BiotechnologyEnzyme Structure and FunctionAmino Acid Enzymes and Metabolism

Acoustic-phonon transmission and thermal conductance in a double-bend quantum waveguide

Wei‐Qing Huang、Ke‐Qiu Chen、Zhigang Shuai 等 6 位作者2005-11-01Journal of Applied Physics

Acoustic-phonon transmission and thermal conductance in a double-bend quantum waveguide at low temperatures are investigated with the use of the scattering matrix method. The calculated results show that the total transmission coefficient versus the reduced phonon frequency exhibits a series of resonant peaks and dips…

Acoustic Wave Phenomena ResearchThermal properties of materialsThermal Radiation and Cooling Technologies