Lunhui Guan、Zujin Shi、Huanjun Li 等 5 位作者2004-01-01Chemical Communications
Super-long continuous Ni-filled carbon nanotubes were synthesized by the chemical vapor deposition (CVD) method with cloth-like single-walled carbon nanotube (SWNT) raw soot produced by the arc-discharge method as catalyst; the Ni nanowires inside the carbon nanotubes are single crystals, with an average diameter of 4…
Carbon Nanotubes in CompositesGraphene research and applicationsThermal properties of materials
Zhen Shen、Hidemitsu Uno、Y. Shimizu 等 4 位作者2004-01-01Organic & Biomolecular Chemistry
The boron trifluoride-catalyzed Rothemund condensations of phenylpropargylaldehyde with 4,7-dihydro-4,7-ethano-2H-isoindole or 3,4-diethylpyrrole in dichloromethane at low temperature give 5,10,15,20-tetrakis(phenylethynyl)porphyrins bearing bicyclo[2.2.2]octadiene and octaethyl substituents, respectively. The former…
Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesLuminescence and Fluorescent Materials
L. Larabi、Yahia Harek2004-01-01Portugaliae electrochimica acta
The effect of iodide ions on the corrosion inhibition of mild steel in 0.5 M sulfuric acid in the presence of poly(4-vinylpyridine) (P4VP) was studied by weight loss and different electrochemical techniques such as electrochemical impedance spectroscopy, potentiodynamic polarization and polarization resistance measure…
Corrosion Behavior and InhibitionMetal and Thin Film MechanicsConcrete Corrosion and Durability
H. Cory、Thomas Blum2004-01-01Microwave and Optical Technology Letters
The dispersion relations for metamaterial cylindrical guides are found and their Brillouin diagrams are drawn for different guide parameters. It is found that the transverse propagation coefficient of the first TMz mode and the first TEz mode can be either real or imaginary. The longitudinal propagation coefficient of…
Metamaterials and Metasurfaces ApplicationsMicrowave Engineering and WaveguidesAdvanced Antenna and Metasurface Technologies
Simona Jevšnik、Jelka Geršak2004-01-01Fibres and Textiles in Eastern Europe
Abstract The end form of produced cloth depends on the qualities of the build material and its con-struction requirements. These can be estimated subjectively or objectively after the cloth is fi nished. The drape of the fabrics and the fused panel is one of the most signifi cant proper-ties which characterise the sha…
3D Shape Modeling and AnalysisAdditive Manufacturing and 3D Printing TechnologiesTextile materials and evaluations
Xinhua Dai、Zhimin Liu、Buxing Han 等 9 位作者2004-01-01Chemical Communications
Poly(2,4-hexadiyne-1,6-diol)(poly(HDiD)) was coated on the outer walls of carbon nanotubes (CNTs) with the aid of supercritical CO(2), resulting in poly(HDiD)/CNT nanocomposites, which possess optical properties originated from poly(HDiD).
Carbon Nanotubes in CompositesFullerene Chemistry and ApplicationsSynthesis and Properties of Aromatic Compounds
Ali Erdemir2004-01-01ASME Press eBooks
Carbon as an element constitutes the building block of some of the hardest materials (such as diamond, boron carbide and transition metal carbides) known to date. It is also a key ingredient of amorphous diamondlike carbon (DLC) and carbon nitride coatings, which offer exceptional friction and wear properties to slidi…
Diamond and Carbon-based Materials ResearchLubricants and Their AdditivesTribology and Wear Analysis
Hsi-Jen Chen、Kuan-Min Lai、Yeh-Chin Lin2004-01-01JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
This paper has presented some popular methods used to determine the kinetic parameters from nonisothermal thermogravimetric analysis (TGA) data. These methods include the improved Doyle–Ozawa method, and the nonlinear regression method. The above-mentioned methods along with a new method proposed by the present author…
Energetic Materials and CombustionThermal and Kinetic AnalysisChemical Thermodynamics and Molecular Structure
Nuray Yıldız、Zeki Aktaş、A. CALIMLI2004-01-01Particulate Science And Technology
The objective of this work was to determine the changes of thermal and surface properties of a bentonite from Çankιrι after activation using different concentrations of H2SO4 solutions (0.5–4 M). XRD, FTIR, DTA, and TG analyses of the samples were performed to examine the structural changes of the bentonite before and…
Concrete and Cement Materials ResearchSoil and Unsaturated FlowClay minerals and soil interactions
C. L. Dickson、D. R. M. Brew、F. P. Glasser2004-01-01Advances in Cement Research
Results of solubility determinations on naturally-occurring calcium silicate hydrates are reported for okenite, gyrolite, tobermorite and xonotlite: also for phase pure laboratory preparations of tobermorite, afwillite, foshagite and hillebrandite. Samples, typically 100–200 mg, were contained in sealed reactors and d…
Radioactive element chemistry and processingCalcium Carbonate Crystallization and InhibitionClay minerals and soil interactions
Ryo Matsumoto、Kozo Osakada2004-01-01MATERIALS TRANSACTIONS
A new warm forging method for magnesium alloys is proposed by taking their material properties into consideration. Since the ductility of Mg alloys is low at room temperature, the forging operation is conducted in the temperature range of 200—400°C. In the warm forging of Mg alloys, the billet is easily cooled down in…
Magnesium Alloys: Properties and ApplicationsAluminum Alloy Microstructure PropertiesAluminum Alloys Composites Properties
Katsu Yanagimoto、Kazuhiko Majima、Satoshi Sunada 等 4 位作者2004-01-01Journal of the Japan Society of Powder and Powder Metallurgy
Electromagnetic wave absorbing properties of composite sheets using Ar gas atomized and attrition milled powders of several soft magnetic compositions were examined. The sheet of Fe-50Ni powders whose aspect ratio was the largest of all tested materials showed the maximum u" value, and the sheet of Fe-6Si powders whos…
Electromagnetic wave absorption materials
Erika J. Palin、Martin T. Dove、Alfonso Hernández‐Laguna 等 4 位作者2004-01-01American Mineralogist
In previous papers, we investigated via Monte Carlo simulation the order-disorder behavior of an individual octahedral phyllosilicate sheet, with respect to two-species systems Al/Fe, Al/Mg, and Fe/Mg, and some three-species systems Al/Fe/Mg that were relevant to clay compositions found in nature. We have extended the…
Glass properties and applicationsSoil and Unsaturated FlowClay minerals and soil interactions
Goeran Jerke、Jens Lienig2004-01-01IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Electromigration is caused by high current-density stress in the metallization patterns and is a major source of breakdown in electronic devices. It is, therefore, an important reliability issue to verify current densities within all stressed metallization patterns. In this paper, we propose an efficient methodology f…
Electronic Packaging and Soldering TechnologiesVLSI and FPGA Design TechniquesCopper Interconnects and Reliability
Virote Boonamnuayvitaya、Chaiyan Chaiya、Wiwut Tanthapanichakoon2004-01-01JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Coffee residues from instant coffee plants were used to produce mesoporous activated carbon. A series of carbonization and activation conditions were examined to elucidate the effect of each condition. The specific surface area, mesopore and total pore volumes were evaluated by nitrogen adsorption at 77 K, and the sur…
Supercapacitor Materials and FabricationCoffee research and impactsCarbon and Quantum Dots Applications
S.M. Aucott、H.L. Milton、Stuart D. Robertson 等 5 位作者2004-01-01Dalton Transactions
Oxidative addition of the disulfide compounds naphtho[1,8-cd][1,2]dithiole, 2-tert-butylnaptho[1,8-cd][1,2]dithiole, 2,7-di-tert-butylnaphtho[1,8-cd][1,2]dithiole, 4,5-dithiaacephenanthrylene and the thio/sulfinyl and thio/sulfonyl compounds naphtho[1,8-cd][1,2]dithiole 1-oxide, and naphtho[1,8-cd][1,2]dithiole 1,1-di…
Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesOrganic and Molecular Conductors Research
D. Pawlica、Marek Marszałek、G. Mynarczuk 等 5 位作者2004-01-01New Journal of Chemistry
An efficient stepwise template approach has been developed that leads to a novel Ni(II) complex of an unsymmetrical 1∶1∶1 Schiff base derived from o-phenylenediamine, benzoylacetone and salicylic aldehyde [abbreviated as salophbac Ni(II)]. The 3- and 5-hydroxysubstituted salicylic aldehydes lead to complexes containin…
Metal-Organic Frameworks: Synthesis and ApplicationsNonlinear Optical Materials ResearchDendrimers and Hyperbranched Polymers
H. N. Shreenivasa Murthy、B. K. Sadashiva2004-01-01Journal of Materials Chemistry
The synthesis and mesomorphic properties of unsymmetrical five-ring bent-core compounds containing a fluorine substituent in one of the arms are reported. A comparison of the properties with the symmetrical compounds having two fluorine substituents indicates that the position of this substituent has an influence on t…
Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsSynthesis and Properties of Aromatic Compounds
P Boscolo、Luca Di Giampaolo、Marcella Reale 等 11 位作者2004-01-01PubMed
The effects of graded concentrations of Pt, Pd, and Rh salts on spontaneous and PHA-stimulated peripheral blood mononuclear cell (PBMC) proliferation and IFN-gamma, TNF-alpha, and IL-5 release were the focus of this study. Spontaneous PBMC proliferation was inhibited by all 10(-4) M salts (with the exception of PtCl2)…
Nanoparticles: synthesis and applicationsHeavy Metal Exposure and ToxicityTrace Elements in Health
Antônio Ferreira da Silva、Iuri Muniz Pepe、Clas Persson 等 9 位作者2004-01-01Physica Scripta
The optical properties of the oxide compounds PbO and SnO 2 have been investigated experimentally by transmission spectroscopy measurements and theoretically by a full-potential linearized augmented plane wave (FPLAPW) method. The dielectric functions of the rutile TiO 2 has also been calculated. The calculated band-g…
Gas Sensing Nanomaterials and SensorsChalcogenide Semiconductor Thin FilmsElectronic and Structural Properties of Oxides