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。
Time-dependent measurements of cell impedance of a HT-PEFC based on ABPBI were performed at constant frequencies close to the high-frequency (h.f.) intercept of the corresponding Nyquist plots with the real axis.The h.f.impedances approximate the ohmic resistance of the cell and they decrease, when current (140 mA/cm²…
IC technology, which has traditionally been dominated by dimensional scaling, is facing several technical and economic hurdles as it moves forward. Low K insulation has not been able to meet performance projections, copper traces are becoming more and more resistive, clock rates have been constrained due to thermal is…
ross-linked polymeric organogels have attracted much attention in recent years. Most synthesized organogels are based on low molecular weight or denderitic materials. The study focuses on the preparation of an alcohol absorbent organogel based on 2-acrylamido-2-methylpropane sulphonic acid (AMPS) through cross-linking…
The aim of this research was to evaluate the affectiveness of hexane fraction of ethanol turmeric extract on the wound helaing process of mice. The extraction process was based on maseration method. Fourtyfive male albino mice aged 2-2,5 month were divided into 3 groups, all groups were received incision 1 cm on their…
硼和锶的效果在 Al-7Si 合金是的 hypoeutectic 的微观结构上联合了处理 studied.Experimental 结果证明那锶没在硼的谷物精炼效率上有重要效果，最容易溶解的硅修正效率不仅与锶内容有关而且与在 Al-7Si 的硼内容有关合金 melt.There 是在导致 strontium-boron-aluminum cont 的形成的硼和锶之间的一个否定相互作用
Carbonates in the topsoil of many Mediaterranean soils interact with soil organic carbon (SOC) and aggregation dynamics, by decreasing organic matter mineralization and enhancing aggregate stability. The relative contribution of SOC and carbonates in two Mediterranean soils were studied. We hypothesized that SOC-carbo…
The content of Fe in soils in South China is high and the Fe reduction process is important for contaminants transformation in this region. In this study, 23 soil samples from South China were used to study the effects of soil characteristics and weathering parameters on the Fe reduction processes. The total Fe reduct…
The preparation of hydrogen terminated Si(100) surfaces of high quality is of paramount relevance in many areas of fundamental and technological research. These surfaces must display both a sub-nanometric residual roughness and a uniform, controlled chemical termination. Both points are somewhat critical when surfaces…
Computer simulation is a tool for studying macroscopic systems by implementing microscopic models. Molecular dynamics merges computer simulation with statistical mechanics to compute equilibrium and transport properties of a classical many-body system. The main idea behind the classical MDS is the calculation of the i…
EMULSI DAN ULTRASONIKASI DALAM PEMBENTUKAN NANOENKAPSULASI IBUPROFENTERSALUTPOLIPADUAN POLI(ASAM LAKTAT) DENGAN POLI(e-KAPROLAKTON) . Telah dibuat polipaduan poli(asam laktat) (PLA) dengan poli(e-kaprolakton) (PCL) sebagai penyalut obat ibuprofen. Pembuatan nanoenkapsulasi ibuprofen dalam penelitian ini dengan cara me…
Miniaturization and increased complexity of electronic devices are two major trends in the electronic industry. Recent research indicates that inkjet printing can be successfully used in building smaller and more complex structures. This paper describes new methods for generating inkjet printable dispersions of highly…
In simulations of developing fires in enclosures, a correct prediction of flame spread is crucial in the prediction of the fire growth rate. The simulation of this phenomenon requires two different kinds of solvers: one that deals with the solid phase, to determine the thermal degradation and volatile release (pyrolys…
Effective cooling channel design in the mould is important because it not only affects cycle time but also quality of the injection moulded plastic part. A good cooling system design can reduce cycle time and achieve dimensional stability of the part which will consequently produce better quality part. This paper desc…
Nowadays natural materials are popular and favoured in civil engineering. At the same time it is important to use renewable and local materials which have low CO2 production. One of these materials is clay reinforced with natural fibres. For production purpose it is necessary to find the natural fibres which have suit…
One soil profile belonging to Monguya I series in Zunheboto district and three soil profiles of Mokakchang, Longsamtang and Monguya II series in Mokakchang district of Nagaland, were studied for lime requirement as influenced by the nature of acidity. The electrostatically bonded, EB–H+ and EB–Al3+ acidities constitut…
Poly(3-hydroxybutyrate), PHB is a biodegradable and biocompatible polymer generally produced by algae and bacteria. The main disadvantages of PHB include: (a) prohibitive cost, (b) poor processability, and (c) thermal instability during processing. Lignin (obtained from sugarcane fibre) has been blended with PHB to as…
Special remelting techincs including repeating the heating and quenching process for several times, electromagnetic mixing during the melting, increasing the superheating temperature, prolonging isothermal time can effectively decrease or remove the effect of impurity in raw materials on the glass-forming ability (GFA…
This paper proposes bevelling magnet edges that can reduce iron losses in permanent magnet (PM) machines. The maximum flux density and time rate change of flux density in teeth and yoke are deduced, respectively, considering a random angle of bevelling magnet edges. The analytic models of the average eddy current and…
\n\t\t\t\t\tThe present work examines the extrusion and mechanical properties of MExlOO alloys, which contain levels of rare earth alloying additions up to 0.4 wt%. It is shown that these alloys can display the high extrudability of alloy Ml with strengths nearing those of AZ31. Most importantly, the grades display hi…
Identification of various clay minerals and their changes in the clay fraction of soil samples of 3 types of Indian soils before and after depletion of K by exhaustive cropping by growing Sudan grass (Sorghum vulgare) was done on the basis of strongest XRD peaks from basal planes. Sudan grass was grown in clay pots co…