Materials Literature
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The classification of figure type is an important issue in apparel size standard,and the method of classification of figure type closely relates to the coverage of apparel size and the easy use of size standard.The body measurement of 500 young women from Fujian province was carried out,and SPSS software was used to c…
A non-contact over-voltage sensor can measure the overvoltage of overhead transmission line,and the divider ratio is decided by the stay capacitance between conductor and sensor.We adopted the waveform decoupling method to study the multi-phase coupled sensors,and investigated the distance between the transmission lin…
Using Ce(NO3)3·6H2O and(NH4)2 Ce(NO3)6 as cerium source respectively,ceria nanomaterials were prepared through a facile chemical precipitation method.The influence of cerium source on nanostructure and surface properties were investigated.The obtained ceria nanomaterials were applied as ozonation catalyst.Results indi…
The solution treatment on Al-7Si-0.4Mg alloys at 535 ℃ for various holding time was carried out.The effectc of solution holding time on Si particle morphology,fracture morphology,precipitation phase behavior and mechanical properties of the alloy were analyzed by OM,SEM and DSC,respectively.The reulsts show that Si pa…
To solve the problem of low repeatability and absorbing rate in the inverse suspension polymerization,the poly(acrylic acid-acrylamide)superabsorbent copolymer was synthesized through inverse suspension polymerization,using cyclohexane as the continuous phase,span80 as the suspension stabilizer,N,N-methylene bis-acryl…
A mixed lubrication model for piston skirts is developed which takes into account the effects of skirt topography,surface waviness and roughness,thermal distortion and bulk elastic deformation of both piston skirts and cylinder bore.The effects of piston skirt profile in cross and longitudinal direction on the lubrica…
Graphene,a two-dimensional sheet of sp2-hybridized carbon,receives world-wide attention due to its exceptional charge transport,thermal,optical and mechanical properties.Since the emergence of graphene which possesses a multitude of striking properties,a new type of microwave absorbers,graphene/polymer nanocomposites,…
Nano-fibrous carboxymethylcellulose acetate butyrate(CMCAB) mats with excellent superhydrophobicity(water contact angle 155°) were prepared by electrospinning the kind of biodegradable cellulose derivative.By analyzing the SEM image of CMCAB fibers prepared under different solvent system,it is found that the fibers ha…
The conception,characteristic and the type of edible films,and application in fresh fruit and vegetable is introduced in this article.
Sodium sulphate as a fining agent is used in industrial glass production with reducing agents.A comprehensive review on the progress of sulfur speciation in melting furnaces and molten tin bath of float glass is given below.Firstly,physicochemical change and fining mechanism of sodium sulphate in the glass melting and…
In order to improve the dispersion of carbon nanotubes(CNTs)in plastics,carbon nanotubes filler was prepared.CNTs were dispersed in water promoted by cationic/non-ionic surfactant.CNTs with positive electricity in surface and carbon black or polystyrene microsphere with negative electricity in surface composited toget…
Effects of simulated low earth orbit(LEO) atomic oxygen on tribological properties of two kinds of multiply-alkylated cyclopentanes(MACs) lubricants bearing with different lengths of branch chain are investigated by using a multi-function space tribo-system.The viscosity,mass loss,number-average molecule weights,chemi…
As to the failures resulted from surface residual stress of turbine final stage rotor blade,the article studies the influence pattern of process parameters on blade surface residual stress by cutting tests on the stainless steel blade under different process parameters.The blade fatigue damage is caused by the surface…
The probe-cone docking mechanism adopted in middle and small spacecraft was studied in this paper.A probe-cone docking mechanism with flexible docking cone as buffer system was presented.The deformation of the flexible docking cone was used for absorbing the impact energy as buffering.The impact process was simulated…
The causes of explosion in CdSiP2 polycrystalline synthesis process were analyzed.Double-wall quartz ampoule was used as the reaction vessel and the synthetic furnace with a lower cold zone in the central part was adopted.In the low temperature stage of synthesis,the technique of low temperature vapor transport(LTVT)…
For solving the difficulties of fabricating large-area superhydrophobic aluminum(Al) surfaces,an electrochemical machining technology with a small-area moving cathode and fluorination method were proposed.With scanning electron microscope(SEM),energy dispersive spectroscopy(EDS),and optical contact angle meter,the mic…
The effect of saccharin on the electrochemical behavior of the Watts plating bath for electrodeposition of Ni coating on highly pure Cu strips was investigated by potentiodynamic scan method and alternating current impedance method,and the action of saccharin in refining Ni coating was examined.Results indicate that i…
The operating conditions of two heavy-duty diesel engines simulating real road running conditions in China were investigated using an electric dynamometer in a laboratory.The full-load speed characteristic curve,the featured engine speeds and work performed over the European Transient Cycle(ETC) were also measured.The…
High temperature oxidation behavior of Sialon-bonded SiC multiphase material was investigated in 1100-1500 ℃ by means of X-ray diffractometer,scanning electronic microscopy,mercury injection apparatus and thermogravimetry.The results showed that:(1)The oxidation weight increment rate of sample decreased with increasin…
CNTs/PLA composites were prepared by solution blending method in the presence of pristine carbon nanotubes(MWCNTs)and carboxylated carbon nanotubes(MWCNTCOOH).The dispersity of CNTs,crystallization morphology,electric conductivity and degradation were studied.The results show that MWCNTCOOH are dispersed more homogene…