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。
The lean burn technology has been paid attention recently by more and more people because the economics and emission of the gasoline engine can been improved extensively by lean burn technology. However, the reduction of NOx emission is quite small because of the rich oxygen. The different combination schemes of NOx a…
Clay minerals are widely distributed in the middle 3rd member of Shahejie Formation (Es3) in Dongying Depression. Based on the types, contents and combination features of clay minerals, this paper studies the transverse distribution regularities of clay minerals in this strata. Through the study, it can be found that…
This study reports the successful preparation of Cu (In, Ga)Se2 (CIGS) thin film solar cells by ion beam sputtering with a chalcopyrite CIGS quaternary target. The films were fabricated with different beam currents. The thin films were characterized with X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (E…
Magnesium and its alloys, which have excellent biocompatible and biodegradable properties, are potential materials in biomedical application and studied by more and more researchers in recent years. However, due to the poor corrosion performance, the clinical applications of magnesium and its alloys are greatly limite…
The anodic aluminum oxide (AAO) templates on polycrystalline silicon substrate are studied for growth of ordered nano-dot arrays in order to fabricate the porous silicon layers. The AAO templates on polycrystalline silicon substrate with pores of average diameter 50nm were successfully prepared by one-step anodization…
To analyze the effect of ion barrier film in micro-channel plate on the performance of proximity focusing low-light-level image intensifier, the noise characteristics of ion barrier film are studied. The transmission electrons’ distribution for those have transmitted ion barrier films is determined by simulating the c…
In order to compare the thermal sensitivity of several typical explosives, this article solved numerically one-dimensional transient heat conduction equation including thermal decomposition for explosives with finite difference method. The explicit difference equations under different boundary conditions were establis…
A new magnetic Fe3O4/MO-intercalated-LDH composite has been synthesized by combination of Fe3O4, layered double hydroxide (LDH) and methyl orange (MO). Fe3O4/Zn2CrLDH and Fe3O4/MO-intercalated-LDH were obtained via two-step microwave hydrothermal and anion exchange method. X-ray diffraction (XRD), Fourier transform in…
Microorganisms producing L-fucose dehydrogenase were screened from soil samples, and one of the isolated bacterial strains SA-134 was identified as Acinetobacter sp. by 16S rDNA gene analysis. The strain grew well utilizing L-fucose as a sole source of carbon, but all other monosaccharides tested such as D-glucose and…
The wide use of oil drilling rig brings nominated economic profits for oil drilling industry. However, it will bring about great quantities of harmonic current to the grid, lowering the power quality and reliability of the power grid. Meanwhile, harmonic currents will have a deteriorated influence to surrounding elect…
This paper describes the oxygen-enriched combustion characteristics of pure cotton from municipal solid waste applying the non-isothermal thermogravimetric analysis, the apparent activation energy and the pre-exponential factor of oxygen-enriched combustion were obtained by kinetic analysis. Experimental results show…
The influence of several surfactants in electrolyte during silicon electrochemical etching was reported in this paper. The morphologies of macroporous silicon arrays in n-type silicon are strongly influenced by the chemical nature of these additives. Conventional solvents (HF-Ethanol) with cationic (hexadecyl trimethy…
In order to improving the conversion efficiency of polycrystalline silicon solar cells, progressive SiNx thin films were deposited on the surface via Roth&Rau plasma-enhanced chemical vapor deposition method. The effects of progressive SiNx thin films, such as surface passivation, anti-reflection, and electrical perfo…
A kind of small molecular hemicellulose was prepared from coconut shell by ultrasound-assisted and alkaline hydrogen peroxide extraction. Unlike the common hemicelluloses and celluloses, it is similar to liquid for the hemicelluloses in ethanol solution, but insoluble in it. Through the gel permeation chromatography (…
Single-MCP Cs2Te solar blind ultraviolet image intensifier couldn’t detect weaker ultraviolet radiation, such as the ultraviolet radiation near high-voltage wire insulating column. To increase the ultraviolet radiation gain, the double-MCP, tri-MCP or multi-MCP units are introduced into ultraviolet image intensifiers.…
Numerical simulation of certain diesel engine Urea-SCR catalyst is carried out using computational fluid dynamics method. Injection and atomization of Urea solution, evaporation of water and thermolysis of Urea are taken into account, while the surface chemical reaction in the carrier is ignored. Through the study of…
The post-annealing effects on the surface morphological changes of undoped and Al-doped ZnO (ZnO:Al) thin films deposited by atomic layer deposition (ALD) were investigated. The as-grown films were deposited by ALD at growth temperature of 200°C and also, post-annealing of the samples was accomplished at 300°C for 1 h…
PURPOSES : This study is to develop a method to evaluate the compaction effects of asphalt binders using WMA additives and compare their compaction effects on two types of WMA additives, two types of testing temperatures, and three types of asphalt film thicknesses. METHODS : This study is based on laboratory experime…
In this study, the hexaaluminate catalyst SrMnMAl10O19-δ（M= Cd、Co、Cu 、Fe、Ni、Zn、Zr、Cr and Y）and SrMnFexAl11-xO19-δ(x=1, 2, 4, 6, 8)have been prepared by co-precipitation method. The catalysts were characterized by powder X-ray diffraction (XRD), surface area (BET), hydrogen temperature programmed reduction (H2-TPR). Th…
HgS nanoparticles were loaded on the silica microspheres by an improved layer-by-layer self-assembled technique following low temperature heat-treatment. The optical properties of HgS nanoparticles on the silica microspheres were characterized with UV-vis and fluorescence spectra. The results suggested that the HgS na…