Materials Literature
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A catalyst Co20.0-Ni3.0/γ-Al2O3 for the synthesis of butyronitriles through the ammoniation of butanols was selected and its structure was characterized.Then,the process and the stability of the catalyst were investigated for the synthesis of butyronitriles through the ammoniation of butanols using Co20.0-Ni3.0/γ-Al2O…
The thermal decomposition analysis of coal-pharmaceutical waste sludge,coal-sewage waste sludge blends and coal-sunflower seed husk blends are studied by TG dynamic runs at the heating rate of 20 ℃/min within the temperature range of 25 ℃-900 ℃.The effect of different kinetic models on the determination of kinetic par…
To research effect of sodium dodecyl sulfate(SDS) on electrochemical behavior of electrodeposited nickel.Polarization curve and alternating current impedance spectroscopy of SDS solution electrodeposited nickel of different mass concentration are measured separately by adopting dynamic potential scan and alternating c…
Through questionnaire survey,the demand and tendency for style,design,color and performance of silk garments of various groups of consumers with different ages,sexes,and years of schooling,occupation are analyzed.Regarding the development of silk fabrics,suggestions are given such as reinforcing product research and d…
Polyaspartic acid(PASP)is a kind of novel degradable,innocuous and environment friendly biologic high molecular polymer,which is widely applied in various fields such as water treatment,medicine and commodity etc.As a kind of green chemistry production,the applications of PASP have attracted a great deal of worldwide…
This article compares the mechanical properties of composite laminates and panels of honeycomb sandwich structure made from ACG's MTM-28 matrix prepregs.The composites of the samples are cured in autoclave or in oven with vacuum system.The results show that these kinds of prepregs are available to autoclave and vacuum…
The experimental facilities of intermittent hydrogen production and continuous hydrogen production were designed by adopting aluminum powder and waste aluminum as material. The rules of intermittent hydrogen production and continuous hydrogen production were studied. The optimal conditions were obtained by analyzing t…
Binder migration and redistribution during coating consolidation play a key role in determining the structure and performance of coated paper.In this paper,print gloss,ink absorbency and porosity under different coating solid content were measured to investigate the effect of binder migration on the structure and prop…
Objective To evaluate the optimization factors of LPS and other mitogens-induced THP-1 cell proliferation.Methods The WST-8 assay,a modification of MTT assay,was used to determine the THP-1 cell proliferation in experimental conditions and the phagocytosis of mature THP-1 cells.The optimal concentration and time of LP…
Spherical calcium carbonate compounds were synthesized in different volume percent concentrations of egg white protein solution system using CaCl2 and sodium carbonate as raw material.The formation mechanism of spherical calcium carbonate compounds was characterized by SEM,XRD,FT-IR and TG.The results indicate that wh…
A new type of high-strength and high-toughness low-alloy Mn steel was designed by multi-element alloying.The static CCT diagram,microstructure,fracture morphology of the steel,as well as the effect of heat treatment on its mechanical properties,were studied.The results show that the stability of under-cooled austenite…
To improve the FEM computational efficiency and implement its online application,an 1.5-dimension rigid-plastic FEM(RPFEM) model was developed as the fast solution to the strip rolling process,where the shape function and the B and Hessian matrixes of 1.5-dimension RPFEM were derived to decrease the number of unknown…
Highly-dispersed magnesium hydroxide powders are synthesized by direct precipitation method,using magnesium chloride hexahydrate as raw material,sodium hydroxide and ammonia as precipitant. After calcining magnesium hydroxide powders,highly-dispersed magnesium oxide powders are produced. The products are characterized…
The complex hydroxide was made from the elementary raw materials such as ZrOCl2·8H2O,Cr2O3,Ni(NO3)2·6H2O and NH4HCO3 by using an improved coprecipitation method.Then it was turned into the complex oxide of nickel,chrome and zirconium after calcination.Finally,Ni-ZrO2 composite was reduced at high temperature.The physi…
An HPLC-ELSD method was established for the determination of Nosyl-FLT.A C_8 column was used with the mobile phase of methanol-water-trifluoroacetate(90:10:0.1).The calibration curve was linear in the concentration range of 0.2-2 mg/ml.The limit of detection was 5 ng and RSDs were less than 1.25%.
The influence of heat treatment process on mechanical properties of ZA35-3.5Mn alloy prepared by spray deposition process were studied by orthogonal analysis.The results showed that with the increased solution temperature and prolonged solution time,the tensile strength and hardness obviously raise.As the aging temper…
A monomer with chelating group that can form five-membered ring with metal ion was synthesized by acrylic amide,etc.The effect of dosage of catalyst,mass ratio,reaction temperature and reaction time on production yield was studied by orthogonal experiment.The scale inhibition rate of polymer formed by the monomer was…
The effects of different factors including concentration ratio of carrageenan and myofibrillar protein,pH,ionic strength and [K+] on the textural properties of the carrageenan-myofibrillar protein mixed gel were studied.The results showed that the factors which affected the hardness and adhesiveness of mixed gel were…
It has established the FEM model of nine horizontal roller straightening for 60kg/m heavy rail with original curvature,and simulated the process of the nine horizontal roller straightening by using the explicit dynamics software ANSYS/LS-DYNA.Study on the size and the distribution condition of heavy rail residual stre…
A nondestructive method for measuring the thickness of the semiconductor material of 4H-SiC epitaxial layer by stacking faults was introduced.It is based on the characteristic of the relationship between the size of stacking faults (SF) and the thickness of epitaxial layer.The thickness of epitaxial layer can be calcu…