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 initially proposed a catalytic pyrolysis technology for tar conversion using the rice husk char (RHC) and rice husk ash (RHA) supported nickel-iron catalyst during biomass pyrolysis/gasification. Biomass tar could be in-situ transformed effectively in the gasifer by co-pyrolysis with the RHC/RHA supported c…
The formation of iodine containing crystals with ageing in ionic liquid based dye-sensitized solar cells (DSSCs) containing an I3(-)/I(-) redox couple has already been confirmed. In this report we show how the size of these crystals can reversibly change during operation and the effects this has on cell performance. W…
A theoretical analysis is carried out of the current response under surface diffusion limitation for a rotating disk electrode. Two model surfaces have been considered, an array of active centers and a partially blocked surface. Equations are derived for the current response from both surface types, at the steady stat…
A method for deterministically minimizing the cost of a single Monte Carlo tally employing weight-dependent weight-window variance reduction has been developed. This method relies on deterministic calculations of the tally’s variance and average computational time per history, the product of which is the cost (inverse…
Unprecedented intercalates of arsenic(iii) oxide with potassium azide and ammonium azide have been obtained and characterized by single crystal X-ray diffraction. The compounds are built of As2O3 sheets separated by charged layers of cations and azide anions perpendicular to the sheets. The intercalates are an interes…
This paper presents a novel technique for power transformer protection. This technique is based on extracting current signals under different operating conditions such as during energization of transformer and different fault conditions. Fast wavelet transform (FWT) schemes may not be so effective for data that has ma…
Metal-organic framework compound consisting of terephthalic acid and chromium cation (TPA–Cr) was prepared by the hydrothermal method and characterized by XRD, N2 adsorption-desoprtion isotherm, TGA-DTA and TEM. The prepared TPA–Cr was crystalline and phase-pure. Noble metal was supported on TPA–Cr by the conventional…
Phosphorus-31 magnetic resonance spectroscopy ( 31 P-MRS) is a non-invasive method that provides useful information about metabolism and phosphoenergetic status in both physiologic and pathologic conditions of the human brain. With the progressive advances in magnetic resonance imaging (MRI) technology, particularly w…
The objective of this study was to isolate active alkaloids from the Bulbus Fritillariae Cirrhosae (BFC), to evaluate their anti-tussive to find the highly active substance from the BFC for further new drug development. Materials and methods: The BFC was extracted with chloroform: methanol and alkaloids were isolated…
Thorium is an element for possible use as nuclear fuel, because of the fertile property of Th-232, which could convert into U-233 after neutron capture and beta decays. However, thorium based fuels have not been successfully implemented, because of the high cost and the higher complexity compared with once-through ura…
The activity concentrations of naturally occurring radionuclides 226 Ra, 232 Th and 40 K in soil and water samples collected from Barapukuria 2×125 MW Coal Fired Thermal Power Plant area situated in Dinajpur district of Bangladesh were measured using gamma ray spectrometry technique. Two types of soil samples namely,…
Bitcoin is a virtual currency created by programmers, which is produced at a predetermined and knowable rate to simulate a limited resource. Its value is derived from the trust of its users and is protected by its limited nature and the cryptography by which the currency is secured and authenticated. Bitcoin has been,…
Over 7000 papers are published in the field of catalysis each year. While the majority appear within a handful publications, keeping up with the literature can be difficult. Now in its 26th volume, the Specialist Periodical Report on Catalysis presents critical and comprehensive reviews of the hottest literature publi…
To improve CO 2 separation performance of Poly (amidoamine) (PAMAM) dendrimer at pressure difference conditions, hybrid membranes have been developed by immobilizing of PAMAM dendrimer into a cross-linked poly(ethylene glycol) dimethacrylate (PEGDMA) polymer matrix. A multifunctional cross-linker (MFX) such as trimeth…
Although some chemical compositional data are available about the extracts of Tortella tortusa and Pleurochaete squarrosa, there is no investigation about the compositions and antimicrobial activities of the volatiles from Tortella inclinata var. densa, Tortella tortusa and Pleurochaete squarrosa. Thus, the essential…
Behavior of two-step aging in an as-cast to artificial aging process of Al–10%Si–0.3%Mg system alloy cast by permanent mold was investigated by TEM and micro-vickers hardness measurement. The final aging curves are similar after pre-aging at 348 K, 373 K and 423 K for a short time without significantly increasing hard…
苔藓结皮是生物结皮的高级阶段，它在防风固沙、改善土壤水分、养分等方面具有十分重要的生态作用，但前期研究多是对结皮区和无结皮覆盖区土壤性状的比较，对结皮斑块内土壤理化因子的空间分布情况尚不明确。运用经典统计学，地统计学以及克里格插值法探讨了土壤水分、有机质、全氮、全磷、总盐在样方和斑块两个尺度的空间变异特征，旨在阐明不同尺度藓类结皮土壤空间异质性的强度，明确不同尺度土壤各性状合适的取样距离。研究结果表明藓类结皮土壤性状在两种尺度均表现出中等程度的变异，随着取样尺度减小，自相关性在空间异质性中占的比重增加，结构因素的影响增强，随机因素的影响减弱。样方尺度的空间异质性大于斑块尺度异质性，且土壤性状的变程较大，采样时可适当增大取样间距；两…
ISSN:1572-9613
Pixelated polarizer array can be used in the real-time measurement of Stokes parameters. In this paper, pixelated polarizer array based on the aluminum nano-grating is designed and fabricated, and the fabrication technology is electron beam exposure technology. The size of each unit is 7.4 μm, and the polarization dir…
It is demonstrated the possibility of nanorelief forming on the titan surface by direct laser nanostructuring in theorethical and experimental ways. There were measured characteristic forms and sizes of titan surface nanostructures by means of atomic force microscopy. It is suggested the theoretical model for calculat…