Materials Literature
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Objective To evaluate the feasibility of imaging apoptotic cells in vitro by MRI with SPIO labeled Annexin V.Methods Five tubes(A-E)containing different cells were scanned with MR and then stained with Prussian blue,including tube A(cells not treated with H2O2 before incubated with SPIO),tube B(cells treated with H2O2…
Effects of anionic surfactant dodecyl sulfate(K12),nonionic surfactant alkyl polyglycoside(APG) and amphoteric surfactant betaine on the performance of protease JP-1 applied in the raw hide soaking process of leather manufacture plant were examined.Results showed that anionic surfactant is more suitable than nonionic…
A single air-breathing direct methanol fuel cell(DMFC) with an active area of 1 cm2 was fabricated and investigated experimentally.A fuel reservoir in anode was used to supply methanol solution.A cathode current collector was designed to integrate the cathode fixture.The fuel cell with a home-made membrane electrode a…
Based on the identification of specimens of odonata collected in Dazhang mountain in Jiangxi Province from the year 2005 to 2008,44 species were classified into 12 families and 33 genus.16 species among them are recorded in Huaiyu Mountain in Jiangxi Province for the first time.The characteristics of the fauna show th…
There are no performance test codes for SCR flue gas denitration equipment in China at present.According to the performance test carried out in the SCR flue gas denitration system in 600 MW unit of one power plant,this paper presented the test codes,test feature and measurement method of the key parameters such as NOx…
Taking three different polarity of the materials of polyethylene glycol,water and ethyl alcohol as solution,potato starch MA Synthesis process control,characterization and transparency of the freeze-thaw stability were studied.In pH=8～8.5,temperature of 50 ℃,maleic anhydride accounted for 50 % of the amount of starch,…
Effect of surfactants on viscosity and stability of silica colloids was investigated.Different surfactants were directly added and then viscosity changes and stablity were determined.It showed the viscosity reduced after anionic surfactant added,the CMC of surfacant is about 4.6×10-3 mol/L,the stablity increased rever…
The chemical composition, melting, modification and heat-treatment of medium-carbon low-alloy wear-resistant cast steel are introduced. Testing samples shows that its hardnes is more than 52 HRC, its impact toughness is more than 20J/cm2.The perfect hammer head can be obtained by designing technological equipment, usi…
The propagation characteristics of wing type cracks under compression were studied experimentally.The propagation path and the characteristic of propagation load were obtained.On this basis,the propagation process of cracks was further studied by numerical simulation.The secondary development of software ABAQUS was im…
Li2O-Al2O3-SiO2 (LAS) glass-ceramics with MgO, ZnO and BaO additives were prepared by a conventional melting technique. The effects of MgO, ZnO and BaO on the crystallization of LAS glass were investigated by differential thermal analysis, X-ray diffraction and scanning electron microscopy. The coefficient of thermal…
MFI/MFI core-shell zeolites with a low silica to alumina ratio core and a continuous shell of high silica to alumina ratio were successfully synthesized by a novel two-step procedure. This was done by a secondary growth of the ZSM-5 shell onto the modified ZSM-5 crystals and the pre-treatment step played an important…
Extensive and potential applications of field-electron-emission thin film materials in field emission display(FED),electron source,and other high-performance vacuum microelectronic devices have attracted interests and attentions of many researchers.The theoretical and experimental development of field-electron-emissio…
The explosively formed projectile(EFP) with fins for a cover charge structure by LS-DYNA software which four covers were conglutinated on the liner was studied by three-dimensional numerical simulation. The mechanism of forming EFP with fins was discussed based on the curves of velocity and pressure vs time of the lin…
The effect of different ultrasonic probe area of end face on metal solidified structure was studied by using the Al-1%Si alloy,choosing respectively the two probes of φ10 mm and φ20 mm.The results indicate that the ultrasonic probe area of end face has the different effect on the Al-1%Si solidified structure.The metal…
Super-hydrophobic ZnO films were prepared on ZnO coated glass substrates by chemical solution deposition method.The microstructure and wettability of ZnO films were characterized by means of SEM,XRD and water contact angle measurement.The results showed that mono-dispersed ZnO nanorod array films were fabricated on Zn…
Using a kind of slurry which contains 1μm TaC fillers 4%(volume fraction) to introduce TaC fillers into 10mm thick 3D carbon fiber perform,three kind of TaC content(low,medium,high) preforms were obtained.3D C/SiC-TaC composites were prepared after densification using CVI SiC.The resultant and microstructure were stud…
A mesostructures model of the plain weave fabric was set up.The homogenization method was introduced to predict the permeability of the plain fabric preform.The results of the permeability obtained by the approach were compared with the experimental results in the literature,and it shows good agreement.The influence o…
Functional carbon membranes for gas separation are designed and prepared by incorporating Fe3O4,γ-Fe2O3,Zn0.5Ni0.5Fe2O4 nanoparticles into carbon membrane precursor polyimide,as well as ferrocene.The synthesized membranes are characterized.Results show that all the dopants have changed into other phase morphologies du…
To improve the yarn evenness,fifty batches of woollen cashmere yarns with the linear density of 38.5 tex were involved.Softwares concerned such as ORIGIN 7.0 were adopted to carry out the correlation analysis.The model of yarn evenness is built.Relationship between single yarn evenness and roving evenness was investig…
Diamond-like carbon(DLC) films deposition on inner surface of a stainless steel tube with 100mm in length and 10mm in inner diameter is carried out in direct current glow discharge plasma of Ar/CH4 mixed gas with a flow ratio of 20% CH4,and the influence of pressure and deposition time on micro-structure of the films…