Materials Literature
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Objective To study temperature field distribution for hyperthermia of skin diseases with direct heating,and this helps develop experimental research.Methods In the condition skin be direct heated,we set up physical model of the skin and bio-heat transfer equations based on the structure of the skin and bio-heat transf…
Mg-Al based composites reinforced with SiC particles were prepared under the protection of inorganic flux,which took magnesium and aluminium as matrixes and SiC as reinforced particles.Effects of SiC particles on the microstructure and components of composition were investigated by SEM and XRD analysis,the relations o…
Hot deformation characteristics of as-cast TiNiNb alloy was studied by hot compression simulation tests under the strain rate range of 0.01-0.1 s-1 and the temperature of 700-1000 ℃.Based on the experiment data,hot deformation constitutive equation of as-cast TiNiNb was established.The processing plans were calculated…
In this paper,the welding property of duplex stainless steel was analyzed,then transition layer and cladding separately with home made welding rods of E309MoL and E2209 was welding by processing specification of low current and fast welding and cooling in water.The ferrite content of the surface sample was to 47.14%,a…
Soybean dregs was used as raw material to prepare for soluble dietary fiber by double screw extruding.The results showed that the optimum extruding conditions were 130℃,500 r/min,water content 15%.Under these conditions,the yield of soluble dietary fiber was increased form 4.26% to 18.35%.The molecular weight distribu…
The homogenous polystyrene micro-sphere particles were prepared by dispersion polymerization.The effects of monomer,stabilizer,initiator and ratio of solvent reaction media on the size and size distribution of the polystyrene micro-spheres were investigated.Polystyrene micro-spheres were characterized by fourier trans…
To ensure rationality and practicability of the cutter configuration, this paper exposits the cutter configuration principle from various aspects by analyzing the cutter configuration on the cutter head of the EPB shield machine with an excavation diameter of 6.28m greatly made in Shenyang Heavy Machinery Group Co., L…
Casting temperature is the main influencing factor on microstructure in the continuous rheo-extrusion process of AZ31 magnesium alloy.The microstructures of AZ31 magnesium alloy at different positions in the roll-shoe die cavity during continuous rheo-extrusion were investigated at different casting temperatures.The r…
Effects of processing temperatures and loading of maleic anhydride(MAH) on the visco-sity-average molecular weight of poly(propylene carbonate)(PPC) were investigated.When the temperature was above 120 ℃,the viscosity-average molecular weight decreased obviously,and the higher the temperature,the lower the viscosity-a…
Cationic peptide composed of positively charged amino acids was synthesized by solid phase method and conjugated to thiolated compound.Gold nanoparticle was functionalized with the synthesized peptide ligand using place-exchange reaction.The effect of the peptide functionalized gold nanoparticle on the lipase catalyze…
The goal of this study was to improve the effect of enzymatic antifelting treatment of wool via a novel keratinase from Bacillus subtilis and a Savinase protease.The influence of two-step enzymatic process on the weight loss of wool was investigated.The results indicated that keratinase treatment alone did not lead to…
The multidirectional(MD) composite laminates subjected to in-plane loading are in the three dimensional stress state due to the presence of interlaminar stresses.A quasi-3D finite element model consisting of plate elements,spring elements and rigid elements was established which,together with the fatigue damage models…
Dynamic stability of the stiffened plates subjected to solid-fluid impact is calculated with finite element method.That is helpful for the dynamic stability of the bulkheads in underwater explosion.Some factors are analyzed,including stiffened plates and the thickness of the stiffened plates,the magnitude and the shap…
This article introduces how to mix and adjust chemical composition in copper and copper alloy melting and casting.It submits experience and skill to the technician and workers.
The flame-retardant finishing of textiles is of very important significance.In this article,various kinds of testing methods for flame-retardant textiles are introduced,and developing trends in flame-retardant textiles are reviewed.
In order to prevent the cold crack as well as the heat-affected zone overheating in low alloy high strength steel welded joints,selection matching welding materials according to the certain joint form,and using MIG welding for concentration energy and small heat input.Adjust the welding heat input and preheat temperat…
The adsorption removal of low concentration of NO was an effective method for environmental protection.Selective Catalytic Reduction was one of the most widely used technologies for the denitration of static source.Therefore,the exploration of adsorbents and novel catalysts with high activity and efficiency for the re…
The calculation of the AC resistance of ACSR,which varies with frequency,average current density and temperature,is complicated. In this paper a simplified calculation method is proposed based on some references. The result of the ampacity calculation shows that most calculated data have small deviation from the ordin…
The effects of Sn content and heat treatment on microstructure and electrochemical properties of Al-Sn-Bi-Mn alloys had been studied by means of scanning electron microscopy(SEM),energy dispersive spectrometer(EDS),photograph microscopy and electrochemical test.The results showed that the aluminum alloy containing 1.0…
After multi-walled carbon nanotubes(MWNTs) are functionalized with p-phenylenediamine,polyaniline emeraldine base(EB) grafted MWNTs(EB-g-MWNTs) composite with high solubility and stability in N-methyl-2-pyrrolidinone(NMP) is synthesized by in situ polymerization followed by de-doping for the first time.EB chains link…