Materials Literature
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Kenaf and polyester/kenaf interwoven fabrics were developed to filling substrate using vegetation cultivation and water soil convervation.The comparative experiments of the growth of herbs and the nutritional soil were proceeded.The results showed that the drought had small influence on two kinds of fabric,herbs grew…
Using fish Silver carp scale as raw material,collagen from silver carp scale was extracted by alcalase,and the influence of some key factors on the efficiency of extraction were investigated by response surface methodology.The optimal conditions were as followed: the substrate concentration 2.89%,enzyme amounts 0.5%,t…
The polyaniline(PANI) films were prepared by constant potential pulse method.The morphology,structure and optic properties of the films were characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),infrared ray(IR) and luminescence spectrum.We investigated the impact of duty cycle,cycle and pulse time…
We present a case report of a 66-year-old woman with multiple lung nodules up to 1 cm in diameter observed for 2 years. The patient was dialyzed for many years due to end-stage renal failure. No signs of respiratory distress and normal levels of calcium serum were observed. Several individual lung nodules were resecte…
A series of CdSe-deposited CdS nanowires with different CdSe content were prepared from precursor hexagonal CdS nanowires in Na2SeSO3 aqueous solution with different concentrations using hydrothermal method.The phases,compositions,morphologies and optical properties of these composite nanowires were further characteri…
Niobium carbide coating processed by TD technique in salt bath and properties of the coating were studied under different materials and various process parameters.Thickness,hardness and crystal structure were tested and analyzed together with wear resistance and inoxidizability.The results show that niobium carbide co…
A hydrophobic film on the enamel substrate was prepared by sol-gel method in which TEOS(tetraethoxysilane) was taken as a precursor with combination of DDS(dimethyl diethoxy silane).The films covered with-CH3 have water repellency.Fourier transform infrared spectroscopy(FTIR) and contact angle measurement apparatus we…
Magnetic nanoparticles not only have the properties of nanoparticles,but also have the effect of magnetic orientation.So it has a wide range of medical applications,especially in magnetic targeting drugs.Usually nanoparticles are prepared by chemical methods which can obtain smooth and uniform particles.Then the nanop…
The precursor of CaO was prepared by the conversion reaction between salt lake by-product CaSO4·2H2O and NH4HCO3 solution.And then high purity CaO was prepared by pyrolyzing.The effects of mole ratio of NH4HCO3 to CaSO4·2H2O,reaction time and temperature on the conversion rate were investigated respectively.The produc…
Ceramic-lined composite steel pipes were prepared by SHS centrifugal-thermite process using a nano-thermite system containing Na2B4O7 and nano-SiO2 powders.Microstructure and properties of the composite steel pipes were studied by means of SEM and EDS analysis,XRD and mechanical property tests.The results show that th…
The superplasticity of industrial 5052 Al alloy was investigated.Both the uniaxial tensile test and free gas bulging forming test show that the alloy has good superplasticity at different temperatures(ranging from 400 ℃ to 525 ℃).Under the temperature of 400 ℃ and strain rate of 10-2 s-1,the elongation of the material…
Ni0.15Cu0.2+0.02xZn0.65-0.02xFe2O4(x=-2,0,2 and 4) ferrites were synthesized by conventional ceramic technology.It was found that the substitution of Cu for Zn has great influence on the microstructures,Curie temperature,magnetic and dielectric properties of ferrites.The initial permeability increases with x firstly a…
Objective To investigate the effect of intramyocardial injection of slow release microspheres of tannic acid(TA) on ventricular remodeling after acute myocardial infarction(AMI) in rats.Methods Slow release microspheres of TA were prepared and the release parameters in vitro were detected.AMI model in rats was induced…
A red phosphor Sr0.6MoO4∶Eu0.43+ was synthesized by hydrothermal method with the starting materials∶ Eu2O3,Sr(NO3)2 and(NH4)6Mo7O24·4H2O.The crystal structure,morphology and luminescent properties of the phosphors were investigated by XRD,FE-SEM and PL.The results showed that non-agglomeration phosphor with a like tet…
For highly improving wear resistance of austenitic stainless steel and extending its application scope,the Ti-C-Fe-Ni powders blend was used as precursor material for in situ synthesizing a wear resistant TiC reinforced composite coating on 1Cr18Ni9Ti austenitic stainless steel substrate by plasma cladding technique.M…
Based on the continuum mechanics and elastic beam model,the nonlinear vibration of embedded single-walled carbon nanotube with clamped-clamped boundary condition is investigated,where the carbon nanotube is modeled as a harmonically excited beam under a transverse force.By using a single-mode Galerkin approximation me…
Carboxymethyl thiourea chitosan(CMTCS) was prepared and characterized by infrared spectrometry(FT-IR),ultraviolet spectrometry(UV) and differential thermal and thermogravimetry analysis(TG-DTA) methods.The antibacterial activity of CMTCS against E.coli and St.aureus were investigated in vitro.The results showed that t…
Three PPDO/CaCO3 composites(PPDO/CC1,PPDO/CC2 and PPDO/CC3) were prepared by blending poly(p-dioxanone)(PPDO) with three types CaCO3 particles of CC1(nano-CaCO3),CC2(CaCO3 whisker) and CC3(silane-coated CaCO3 whisker),respectively.The effects of particle size and surface treatment on mechanical properties of the compo…
Objective To optimize the prescription and preparation of recombinant human acidic fibroblast growth factor(rhaFGF) liposomes,and to study the physical and chemical properties.Methods The encapsulation efficiency and biological activity of rhaFGF liposomes were evaluated by single factor test.Freeze-drying-rehydration…
Lithium-ion battery cathode material Li1+xV3O8 was synthesized through sol-gel method with Li2CO3 and NH4VO3 as raw materials.The Li1+xV3O8 was characterized by means of XRD,SEM and CV.The electrochemical properties of the product under different conditions were investigated.The results indicated that the prepared lay…