Materials Literature
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emissions.Though,traditional furnace-based case hardening treatments still represent the choice of reference when performance requirements are particularly demanding,either for the critical operating conditions or safety-related issues.The processes of CIH（Contour Induction Hardening）,compared to the traditional carbu…
A thin liquid film subject to a temperature gradient undergoes thermocapillary convec- tion because of the non-uniform surface tension at the free surface. This induced flow perturbs the film free surface and generate a free surface velocity field. These observable consequences can be thought of as the of the imposed…
Metal foams are usually used as light structural/functional materials.The nucleation,evolution and the solidification behavior of the metal foams can be influenced by the stirring mode and the foaming parameters.In this paper,the effects of electromagnetic stirring on metal foaming process were investigated.Comparativ…
Nanocluster carbon thin films were grown using the room temprature based cathodic arc process. These films are mixed phase material containing both sp2 and sp3 bondings. Space-charge-limited-current conduction (SCLC) mechanism was investigated in the case of Nanocluster carbon thin films. The results were analyzed by…
Titanium dioxide (TiO2), as a kind of excellent photocatalyst, has been widely researched and applied. The geometry structures, band structures, densities of states and absorption coefficients of three possible (Nb, N) co-doped anatase are studied by the density functional theory based on GGA+U method, and the results…
Medicinal herbs are highly highlighted due to their wider use and lesser side effects. Plant extracts have been used for centuries, as popular remedies against several health disorders. Therefore, development of newer a nd more potential drugs with lesser side-effects is necessa ry. This review gives a detail of the s…
This paper presents the results of an experimental investigation carried out to study the heat transfer in saturated nucleate pool boiling of the water/lithium bromide mixture on a uniformly heated vertical cylinder at 2 bar pressure. The concentration of lithium bromide was varied from 0 to 30 wt%. It was observed th…
Aimed at the problem of short life of mixing head in KR mechanical mixing method for desulfurization of hot metal,a new type of mixing stir was proposed.CFD theory was used to simulate the characteristics of the fluid flow for the new type of stirring vessel of water model for KR mechanical desulfurization.Flow charac…
This chapter reviews the recent developments in various sensor applications using nanoporous gold (NPG) materials. NPG materials provide a promising platform for the construction of ether enzyme-immobilized or nonenzymatic sensors for glucose, hydrogen peroxide, dopamine, and cancer biomarkers. Immobilization of thiol…
Current-induced Kerr rotation spectra and reflectivity spectra of (Ga,Mn)As and p-GaAs were measured in the absence of the magnetic field via magneto-optic Kerr effect around the energy gap. The dependence of the Kerr rotation and the reflectivity on the laser wavelength show Lorentzian profile. The Kerr rotation depe…
In the past two decades, physically stimuli-sensitive polymeric hydrogels have attracted considerable attention, because of their potential biomedical and pharmaceutical applications, such as in drug/protein delivery and tissue engineering. These polymeric hydrogels have many advantages, such as the formulation and ad…
We attempted to fabricate silk resin sheets from silk powder using a hot-rolling equipment for continuous production. Silk powder was mixed with water, wrapped in a packaging material, and then passed through the nip between the heated rollers. Pulp sheet was suitable for the packaging material, while no resinificatio…
An experimental method is proposed to measure the exact size of the ion beam produced by a liquid metal Ga ion source in Focused Ion Beam systems. This method involves the fabrication of arrays of trenches having different periods, followed by Atomic Force Microscope measurements and further uncomplicated calculations…
An approximate method for evaluating the absorbed impact energy of a cylindrical tube with varying cross-section was proposed by using dynamic behaviors of uniform cylindrical tubes subjected to axial impacts. The cylindrical tubes with varying cross-section were approximated as a tube connected with many infinitesima…
Nanophotonic devices typically feature complex geometries and materials with nonlinear optical properties. This poses serious challenges to computational approaches. The Discontinuous Galerkin Time-Domain method provides a rather flexible approach to accurate computations of such systems.
From Biomet, Inc, Warsaw, Indiana; and Department of Bioengineering, University of Illinois at Chicago, Illinois. Received June 8, 2011. Accepted for publication July 15, 2011. Address correspondence and reprint requests to William S. Pietrzak, PhD, Biomet, Inc, 56 E Bell Dr, Warsaw, IN 46582; E-mail: [email protected…
The leaves extract of Calotropis gigantea were screened for its anti microbial and phytochemical activities. The solvents used for the leaves extraction were Ethanol, Methanol, Chloroform and n-Hexane. The extract was tested against infectious diseases causing fungal pathogens such as Aspergillus flavus, Aspergillus n…
Mass -Energy absorption coefficient, Effective atomic numbers for photon energy absorption (Z PEA,eff ) and photon interactions (Z PI,eff ), of 8 Vitamins viz., vitamin-A (Retinol), B2 (Riboflavin), B3 (Niacin), B7 (Biotin), B9 (Folic acid), B12 (Cobalamin), K1 (Phylloquinone) and P (Flavonoids) were computed for the…
A unique SNCR system using dissociated ammonia generated by an atmospheric plasma has been developed to remove NOx from combustors. However, the NOx removal mechanisms are not clear. In this paper, chemical compositions of dissociated ammonia at the plasma reactor exit were investigated. NH3 decomposition, hydrogen co…
本研究では水溶性セルロースとして硫酸セルロースナトリウム(CSNa)を合成し，ポリウレタン樹脂の基材としてのセルロース成分の導入を目指した．硫酸セルロースナトリウム水溶液を2-ジメチルアミノエタノール，イソシアネートとしてミリオネートMR-100を用いて反応させることでポリウレタン樹脂の合成を行い，樹脂の形成についてATR-IR，固体NMRの測定により確認を行った．また，N,N-ジメチルエチレンジアミンを加えた場合にはウレア樹脂の形成が同様に確認された．さらに，DMAEの量を変化させて樹脂形成を行うことで，CSNaと相互作用するDMAEの適切な量が存在し，CSNaを基材としたポリウレタン形成に大きく関与していることが明らかとなった．