Materials Literature
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The development and testing of a biomimetic active hydrofoil that utilizes Shape-Memory-Alloy (SMA) actuator technology is presented. This work is the second stage in the development of a vehicle that has a skeletal structure similar to that of aquatic animals and SMA actuators for muscles. The current work describes…
The ASTRAL compendium provides several databases and tools to aid in the analysis of protein structures, particularly through the use of their sequences. It is partially derived from the SCOP database of protein domains, and it includes sequences for each domain as well as other resources useful for studying these seq…
Transient methods are widely used to determine the thermal transport properties of dielectrics and other materials. We investigated the limits and potentials of the transient hot-strip (THS) method for the simultaneous determination of the individual thermal conductivity and the thermal diffusivity of layered composit…
In a previous study, it was found that Keggin-structural polyoxotungstates such as undecal11ngstosilicate ([SiWi1039]S-, SiWn) greatly sensitizes strains of methicillin-resistant Staphylococcus arrreas (MRSA) to B-lactam antibiotics. Of the related tungsten compounds tested, undecatungstocobalto(II)silicate ([SiWnOnCo…
运用计算机图象处理和分析技术,提取针织物图象中反映织物外观的特征参数（纱线和毛羽的覆盖系数、纱线灰度、毛羽的数目等）,以此定量分析针织物在洗涤处理前后起毛程度的变化。图象分析技术可作为针织物外观客观化的有效手段。
Physical, and spectral properties of a new commercial ytterbium doped phosphate laser glass with big size, NEW/Yb, was researched. Assessing from thermal mechanical property, nonlinear property, crystalline phase, micro defects and spectroscopic properties of NEW/Yb and Kigre's QX/Yb glasses, it is found that thermal-…
The main purpose of this research is to develop methods for automatic identification of biological specimens in digital photographs and drawings held in a database. Incorporation of taxonomic drawings into a visual indexing system has not been attempted to date. Diatoms are a single cell microscopic algae that provide…
A protective carbon film, prepared by electron-cyclotron-resonance (ECR) plasma sputtering, has attracted considerable interest because the film can possess both the high wear durability and the high conductivity without doping. Such properties can be obtained, for example, when a negative bias voltage VB (−40≤VB≤−140…
Matrix-type transdermal delivery systems of testosterone (TS) were formulated with three different pressure-sensitive adhesives (PSA). The effects of PSA, skin permeation enhancers, and solubilizers on the rat skin permeation rate of TS were systematically investigated. Without a solubilizer, the skin permeation rate…
Actuators are used to perform a variety of functions in almost every type of electromechanical system, “smart” device, and instrument. Increasingly, in many applications, actuators need to achieve reduced size, mass, power consumption, and cost. Examples of industries that demand novel, miniature, and powerful actuato…
Experimental solubilities are reported at 25.0°C for xanthene dissolved in 34 different organic nonelectrolyte solvents containing ether-, chloro-, hydroxy-, cyano and t -butyl-functional groups. Results of these measurements are used to test the applications and limitations of expressions derived from Mobile Order th…
A series of free base and zinc porphyrins, mono meso-substituted with a pyridyl group via an amide link, have been prepared by stepwise functionalisation of free base tetraphenylporphyrin, H2tpp. Four [W(CO)5L] (L = pyridyl-porphyrin) complexes have been synthesised; [M{tpp-NHCO-py-W(CO)5}], where M = 2H or Zn, one ph…
Research Article| March 01, 2002 Inherited correlation in crystal size distribution: COMMENT Bruce. D. Marsh; Bruce. D. Marsh 1Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, Maryland 21218, USA Search for other works by this author on: GSW Google Scholar Michael D. Higgins Michael D.…
A porous La0.6Sr0.4Co0.2Fe0.8O3-Ce0.9Gd0.1O1.95 (LSCF-CGO) green body was prepared from a water-based slurry by a freeze-drying process. The LSCF-CGO slurry was frozen, controlling the growth direction of ice, and it was sublimated at a reduced pressure. After sintering the green body at 1350°C, the obtained porous su…
In this paper, the three important aspects of SiC materials, that is, the powder synthesis, the sintering process, and the theory of sintering and grain growth are reviewed. They are summarized as follows.(1) SiC precursors were derived from the liquid materials of silicon-tetraethoxide and phenolic resin. Homogeneous…
By means of surface characterization and subsequent hot-dip galvanizing tests, both Al-alloyed TRIP grades showed good galvanizability.
Two new classes of mono- and bis-D–π–A cryptand derivatives with a flexible and a rigid cryptand core have been synthesized. The linear and nonlinear optical properties of these molecules are probed. The three dimensional cavity of the cryptand moiety has been utilized to modulate the SHG intensity to different extent…
Research Article| March 01, 2002 Inherited correlation in crystal size distribution: COMMENT Helmut Schaeben; Helmut Schaeben 1Institut für Geologie, TU Bergakademie Freiberg, Germany Search for other works by this author on: GSW Google Scholar K. Gerald van den Boogaart; K. Gerald van den Boogaart 1Institut für Geo…
A new class of phthalocyanine derivatives containing fused [5]helicene moieties has been synthesized. These derivatives, named as helicenocyanines, are soluble in common organic solvents and exhibit significant red shift of Q-band absorptions. Electrochemical, thermal and fluorescence characteristics of these heliceno…
The equations of state and phase stability of calcium chalcogenides, CaS, CaSe and CaTe are investigated via first principles theoretical calculations. We report results of the structural properties of these compounds in the B1(NaCl) and the B2(CsCl) phases, the theoretical transition pressure and the volumes compress…