Martha E. Ferrario、David U. Hernández‐Becerril、Irene A. Garibotti2004-01-01Botanica Marina
Phytoplankton samples were collected along the north coast of the Antarctic peninsula, the Weddell Sea and the Gerlache Strait, in different seasons in 1985, 1986, 1999, and 2000–2002. Chaetoceros castracanei Karsten, a fairly rare species was present in the samples; its morphology, taxonomy and distribution have not…
Marine and coastal ecosystemsAquatic Ecosystems and Phytoplankton DynamicsDiatoms and Algae Research
Jie Chen、Young Chang Nho、Allan S. Hoffman2004-01-01Journal of Biomaterials Science Polymer Edition
Grafting of 2-methacryloyloxyethyl phosphorylcholine (MPC) and poly(ethylene glycol mathacrylate) (PEGMA) onto cellulose films was performed using the pre-irradiation grafting method. The effects of monomer concentration, solvent system and co-solvent composition, and reaction time on the degree of grafting were deter…
biodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction Studies
Masako Dohi、Masaaki Mochimaru、Makiko Kouchi2004-01-01KANSEI Engineering International
Tactile sensitivity of the foot was investigated using the Semmes-Weinstein monofilament method to quantify the pressure sensory threshold. Gender differences and variations in sensitivity at various sites on the foot (inter-locational sensitivity differences) were analyzed using a nonparametric test. Skin elasticity…
Diabetic Foot Ulcer Assessment and ManagementTextile materials and evaluations
Keqing Ouyang、Tian‐Ling Ren、Litian Liu 等 4 位作者2004-01-01Integrated ferroelectrics
The ferroelectric hysteresis in thin films is studied using a computer simulation model based on Time Dependent Ginzburg-Landau equations. The model for the polarization of ferroelectric thin film is set up with the analysis of the crystal structure and the principle of spontaneous polarization. For stress-free ferroe…
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsAcoustic Wave Resonator Technologies
Takao Nakagiri、Kazuya Kurokawa2004-01-01MATERIALS TRANSACTIONS
In order to clarify the influence of water vapor on evaporation and crystallization of an amorphous SiO2 scale formed on SiO2-formers, fused silica was exposed for up to 49 h at 1373—1673 K in N2-O2-H2O atmospheres. The water vapor concentration was regulated to 19.6 and 46.7% (vol%). Under conditions of low water vap…
Advanced ceramic materials synthesisGlass properties and applicationsSilicon Nanostructures and Photoluminescence
Ali Eftekhari2004-01-01Journal of The Electrochemical Society
Electrochemistry of gallium hexacyanoferrate (GaHCF) as an analogue of prussian blue having a high-potential redox system was studied. A thin film of GaHCF was directly generated on a Ga substrate surface to fabricate a modified electrode. Electrochemical behavior of the modified electrode was studied at a typical coo…
Conducting polymers and applicationsElectrochemical Analysis and ApplicationsAnalytical Chemistry and Sensors
I. N. Bronshtein、Kevin M. Smith、Benjamin Ehrenberg2004-01-01Photochemistry and Photobiology
The effect of the acidity of the environment on the topography and photophysics of sensitizer molecules in homogeneous solutions, and when embedded in a lipid microenvironment, was studied. Four hematoporphyrin (HP) analogs were studied, which have chemical "spacers" of varying lengths between the chromophoric tetrapy…
Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesProtein Interaction Studies and Fluorescence Analysis
Shila Garg、Tom Spears2004-01-01Molecular Crystals and Liquid Crystals
In this paper, a phase diagram is developed for the molar mixtures of nematic liquid crystals of 5CB and MBBA. In order to understand the interaction of the two systems, dielectric permittivities ˜‖ and ˜⊥ were measured for mixtures of various concentrations. The usual assumption is that in the absence of chemical rea…
Cold Atom Physics and Bose-Einstein CondensatesMaterial Dynamics and PropertiesTheoretical and Computational Physics
Naoki Takata、Ken‐ichi Ikeda、Fuyuki Yoshida 等 5 位作者2004-01-01Journal of the Japan Institute of Metals and Materials
In order to clarify the correlation between the grain boundary energy and its atomic structure in copper, energy and atomic structure of ‹110› symmetric tilt boundaries in copper were simulated by molecular dynamics method. From the calculations, it was revealed that the grain boundary energy of ‹110› symmetric tilt b…
Microstructure and mechanical propertiesCopper Interconnects and ReliabilitySurface and Thin Film Phenomena
C. L. Wang、Z. J. Zhang、Y. M. Kuo 等 4 位作者2004-01-01Polymers for Advanced Technologies
Abstract The reaction of 6‐amino‐2(2‐hydroxy‐2‐phenyl‐ethyl)benzo[de]isoquinoline‐1,3‐dione with toluene diisocyanate and other additives to form the structure of the fluorescent dye‐based polyurethane (PU) ionomer has been proven by infrared (IR) spectroscopy. In aqueous solution, the fluorescence performance for the…
Polymer composites and self-healingOxidative Organic Chemistry ReactionsSynthesis of Indole Derivatives
Shigeki MORIMOTO2004-01-01Journal of the Ceramic Society of Japan
The formation mechanism, optical absorption and emission spectra of Cr4+ ions-containing Li2O-SiO2 system transparent glass-ceramics were investigated. In this material, the main crystalline phase was Li2O•2SiO2, and the percent crystallinity and crystal size were 67-72 and 20-33 nm, respectively. The remarkable chang…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsPigment Synthesis and Properties
S. J. Park、Sung Young Park、M. S. CHO 等 5 位作者2004-01-01Molecular Crystals and Liquid Crystals
We synthesized multi-walled carbon nanotube(MWNT)/polyaniline(PANI)nanocomposites from an oxidative dispersion polymerization using poly(vinyl alcohol)(PVA)as a polymeric stabilizer. Purified MWNT whose metallic catalysts have been removed in acidic media was applied. The formation of nanocomposites and their morpholo…
Carbon Nanotubes in CompositesPolymer Nanocomposites and PropertiesConducting polymers and applications
Takeshi Kubota、Akihisa Inoue2004-01-01MATERIALS TRANSACTIONS
A ternary (Fe0.82Ga0.18)85B15 alloy was vitrified by melt spinning at wheel velocities of over 28.5 m/s. Two exothermic peaks were observed at onset temperatures of 692 K and 787 K. The melt-spun amorphous alloy ribbon exhibits saturation magnetostriction of +30 × 10−6 at the field of 80 kA/m. The magnetostriction inc…
Microstructure and Mechanical Properties of SteelsMetallic Glasses and Amorphous AlloysMagnetic Properties and Applications
Sreeram Vaddiraju、Sally Eaton‐Magaña、John A. Chaney 等 4 位作者2004-01-01Electrochemical and Solid-State Letters
The band structure of n-type diamond samples co-doped with boron and sulfur was studied using ultraviolet photoelectron spectroscopy (UPS) and Mott-Schottky analysis. The results show that the Fermi energy of the co-doped diamond is about 0.8-1.9 eV above the Fermi level of boron-doped diamond. The electron affinities…
Semiconductor materials and devicesDiamond and Carbon-based Materials ResearchElectronic and Structural Properties of Oxides
Tomoya Nagira、Mikio Ito、Shigeta Hara2004-01-01MATERIALS TRANSACTIONS
Polycrystalline (Na1−yMy)xCo2O4 (M=Nd, Sm, Dy and Yb; y = 0.01∼0.05) samples were synthesized by a polymerized complex method. The effects of partial substitution of rare-earth metals for a Na-site on the thermoelectric properties of NaxCo2O4 were investigated, and their differences with the sample prepared by a conve…
Advanced Thermoelectric Materials and DevicesTransition Metal Oxide NanomaterialsThermal Expansion and Ionic Conductivity
G. Ferlat、D. Martínez‐García、A. San Miguel 等 5 位作者2004-01-01High Pressure Research
By combining X-ray diffraction and X-ray absorption spectroscopy, the structural evolution of the InSe alloy has been explored up to 3.3 GPa and 1500 K with the use of the Paris–Edinburgh large volume cell. These conditions allowed us to study the solid and the liquid states and to measure the pressure evolution of th…
Chalcogenide Semiconductor Thin FilmsPhase-change materials and chalcogenidesSolid-state spectroscopy and crystallography
Hideyuki Yasuda、Itsuo Ohnaka、Hideaki Jozuka2004-01-01ISIJ International
A model experiment was performed to investigate movement of inclusions near the solid wall and engulfment into the solidifying front. Polystyrene particles (100 μm in diameter) were suspended in flowing melts (water, 20 mass% NaCl aqueous solution and succinonitrile). As the average flow velocity increased, number of…
Textile materials and evaluations
Sanjay Choudhry2004-01-01AIP conference proceedings
A general purpose shape memory alloy model has been developed and implemented in MSC.Marc 2003. This model is based on a phenomenological model that provides a description of a wide range of the observed behavior, which is tractable from both analytical and computational viewpoint. The present model describes the deve…
Shape Memory Alloy Transformations
Teruaki Danno2004-01-01AIP conference proceedings
X‐ray photoelectron spectra (XPS) of carbyne‐like carbon (CLC) film obtained by the polymer reaction route were measured and analysed. Dehydrohalogenation reaction was carried out effectively regardless of the starting precursors. Cls core‐level spectrum of CLC film shows the anomalous lowest peak maxima at 282.6 eV c…
Diamond and Carbon-based Materials ResearchFullerene Chemistry and ApplicationsBoron and Carbon Nanomaterials Research
Andy McKay2004-01-01Apress eBooks
This unique guide to Plone covers everything from installing Plone (on Mac OS X, Windows, and Linux) to writing code for the system. As part of the Apress library of Python programming and content man
Engineering and Material Science ResearchChemical and Environmental Engineering Research