Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
This paper presents a theoretical analysis of the tensile properties of plain weft-knitted fabric. Load-extension curves in the coursewise and walewise directions for fabrics made from glass fibers are theoretically calculated and compared with experimental results, and good agreement is obtained between them.
In some semiconductors, the mean free path can be greater for the phonons than for the charge carriers. When this is the case it is likely that the material will display a higher thermoelectric figure of merit in the amorphous rather than the crystalline form. Here we determine the general conditions that must hold fo…
Long-chain mannitol dehydrogenases are secondary alcohol dehydrogenases that are of wide interest because of their involvement in metabolism and potential applications in agriculture, medicine, and industry. They differ from other alcohol and polyol dehydrogenases because they do not contain a conserved tyrosine and a…
Abstract High-pressure high-temperature sintering (HPHTS) is a novel recycling technique that makes it possible to recycle vulcanized rubber powders made from waste rubber (namely scrap tires) through only the application of heat and pressure. A brief look into the mechanism of sintering will be presented along with i…
A methodology for calcium sulfate (gypsum) scale control in nanofiltration of saline waters is presented. The methodology involves the use of both theoretically and experimentally determined parameters. Pitzer's thermodynamic equations for electrolytes are used to determine the gypsum scaling potential of the feed wat…
The phase behaviour of the binary systems 4′- n -tetradecyloxy-3′-nitrobiphenyl-4-carboxylic acid (ANBC-14)- n -alkane ( n -tetradecane or n -hexadecane) was investigated by differential scanning calorimetry, polarizing optical microscopy, and X-ray diffraction. The phase behaviour was a function of temperature ( T )…
The “classical” modeling of powder X-ray diffraction (XRD) patterns of lamellar structures, such as phyllosilicates, assumes that the samples are composed of “crystals” having various thickness and well-defined translations between layers. This model is able to describe the high-angle domain of XRD patterns but someti…
High-electron-mobility ZnO epilayers were grown on c -plane sapphire with ZnO/MgO double-buffer layers by plasma-assisted molecular beam epitaxy. Precisely controlled low growth rate of the double-buffer layers was crucial to the improvement of electrical properties. Both X-ray diffraction ω rocking curve measurement…
Staircase-like magnetic-field-driven magnetization curves ( M ( H )) from an antiferromagnetic to a ferromagnetic state have been obtained in Pr 0.6 Ca 0.4 MnO 3 substituted at the Mn site. Although both nonmagnetic (Ga 3 + , 3d 10 ) and magnetic (Cr 3 + , 3d 3 ) substituted cations are able to induce an insulator-to-…
The 500-keV negative-ion based neutral beam injector for JT-60U started operation in 1996. The beam power has been increased gradually through optimizing operation parameters of the ion sources and conquering many troubles in the ion source and power supplies caused by a high voltage break-down in the accelerator. How…
Abstract The rate and extent of crystallization in crosslinked samples of natural rubber (NR), cis-1,4-polybutadiene (BR), and butyl rubber (IIR), were studied by observing the relaxation of stress in stretched strips, held at low temperatures. Melting temperatures were measured from the recovery of stress on warming.…
The possibility of using Langmuir−Blodgett (LB) films of bis(phthalocyaninate) rare earth compounds (LnPc 2 ) (including praseodymium, gadolinium, and lutetium bis(phthalocyanine)s and their octa- tert -butyl derivatives) as optical sensors has been explored. Special attention has been paid to the previously unexplore…
Abstract Styrene butadiene rubber/layered silicate composites were prepared using clays modified with alkyl ammonium salts of different structure. The influence of modifier structure and compounding conditions on the extent of exfoliation/intercalation of the silicates was investigated by electron microscopy and dynam…
Activator protein-1 (AP-1) and nuclear factor of activated T cells (NFAT) are two important transcription factors responsible for the regulation of cytokines, which are involved in cell proliferation and inflammation. Coal workers' pneumoconiosis (CWP) is an occupational lung disease that may be related to chronic inf…
The mechanical resonant frequency and spring constant of amorphous carbon nanopillars grown by focused ion beam assisted chemical vapor deposition (FIB CVD) were measured to evaluate the pillar density. The measured density ranged from 2.5 to 4.2×3 kg/m3, depending on the growth conditions. Annealing the pillars at 60…
Late Jurassic sandstones of the shallow-marine Sundance Formation contain authigenic chlorite minerals that occur as rosette-like pore fillings of interstratified berthierine/chamosite (B-C) and honeycomb-like pore linings of corrensite and discrete chlorite. B-C is nearly ubiquitous in Sundance sandstones, but is abs…
The electrical properties of xCaO–(20 — x)BaO–20Fe2O3–60P2O5 glasses with x = 0, 5, 10, 15 and 20 mol% have been studied in the frequency range 400 Hz–200 kHz and over a temperature range 323–593 K. The ac conductivity as a function of temperature was divided into two domains, one where the absolute magnitude of the a…
PZT thin films were prepared on silica‐glass substrates from Pb(CH 3 COO) 2 ·3H 2 O–Zr( n ‐OC 3 H 7 ) 4 –Ti( i ‐OC 3 H 7 ) 4 –H 2 O–CH 3 COOH–CH 3 OC 2 H 4 OH– n ‐C 3 H 7 OH solutions containing polyvinylpyrrolidone (PVP) via nonrepetitive dip‐coating or spin‐coating. The thickness of the gel films was varied by chang…
We describe the fabrication of single-wall carbon nanotube field-effect transistors in a conventional metal–oxide–semiconductor field-effect transistor structure, with gate electrodes above the conduction channel separated from the channel by a thin dielectric. We use these devices to study the performance improvement…
A concept for maskless digital electrostatically focused e-beam array direct-write lithography (DEAL) has been developed at Oak Ridge National Laboratory. This concept incorporates a digitally addressable field-emission array (DAFEA) integrated into a logic and control circuit implemented as an integrated circuit. The…