Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Ultrasonic emulsification was used to degrease Basa fish skin.In the degreasing process,the operating parameters degreasing agent type and concentration,ultrasonic treatment time and solid-to-liquid ratio were investigated.Surfactant NP-10 was found to be the most effective agent for degreasing fish skin.The optimum c…
The curing reaction of bisphenol A epoxy resin and isocyanate was carried out and the curing mechanism was investigated.Differential scanning calorimetry(DSC)and Fourier transform infrared spectroscopy(FTIR)were used to monitor and analyze quantitatively the decrease of the groups of isocyanate,epoxy group and generat…
Objective To investigate the efficiency of proton magnetic resonance spectroscopy in monitoring the early therapeutic response of hepatocellular carcinoma(HCC) to local thermal ablation.Methods 17 patients who were highly suspected as HCC were enrolled.17 nodules of all patients received MRS before and after local the…
In order to give some theoretical references for the application of PEEK fiber and fabric thereof,the mechanical properties,moisture absorption,abrasion resistance and antistatic property of PEEK fiber and fabric(self-made) were studied by standard methods.The results showed that both the fiber and fabric have good me…
The four water-based systems were formed by self-emulsifying medium molecular weight waterborne epoxy emulsion CYDW-112W50 and liquid bisphenol A type epoxy resin CYDW-100 with four amine curing agents from Baling Petrochemical Branch.The effects of different curing systems and different ratio of epoxy to amine hydrog…
Tensile experiments at constant high temperature were carried out for hot stamping of boron steels B1500HS on the test machine Gleeble-1500 to get stress-strain curves.The deformation behavior of hot stamping of boron steels B1500HS was investigated.The influence of deformation temperature and strain rate on flow char…
The design of 16.9-34 10PR R-1 agricultural tractor drive tire was described.In structure design,the following parameters were taken:overall diameter 1 580 mm,cross-sectional width 412 mm,width of running surface 388 mm,height of running surface 26 mm,bead diameter at rim seat 866 mm,bead width at rim seat 380 mm,cros…
Whether magnesium alloy could be adapt to the semi-solid forming process or not is the prerequisite for it's been fabricated.In the present work,based on the Computer Aided Cooling Curve Analysis,a research was implemented through an experiment which achieved the quantitative relationship between the semisolid solid-p…
Illustrated the significance of the reinforced concrete structure corrosion control for improving the structure durability and the corrosion mechanism of structure.Taking the corrosion process as the baseline,Introduced the corrosion control method from the corrosion protection measures of concrete and rebar.Emphatica…
Water-soluble rhodium-phoshpine complex HRhCO(TPPTS)3 and TPPTS were supported by hydroxyapatite(HAP).The catalysts were characterized by FTIR,solid state 31P CP-MAS NMR,SEM,ICP-OES,and N2 adsorption-desorption measurements.The catalysts showed special isomerization performance for 1-hexene,2-hexene and 3-hexene.The r…
Ru/C catalyst and extremely low acid were employed for one-step conversion of cellobiose into sorbitol in the presence of hydrogen.Effects of reaction temperature,reaction time and catalyst usage on sorbitol yield were discussed.Experimental results showed that the highest sorbitol yield of 87.1% was obtained at react…
Refining effects of high-intensity ultrasonic treatment on primary Si of hypereutectic Al-Si alloy were investigated by processing Al-20%Si alloy melt under the high-intensity ultrasonic field during solidification.The results show that with the high-intensity ultrasonic treatment,the thick plate primary Si in Al-20%S…
To silence the gene expression of Argonaute1(Ago1) and Argonaute2(Ago2) in silkworm BmN cells,the RNA interference(RNAi) vectors were constructed and transfected into BmN cells.The results showed that the expressions of Ago1 and Ago2 were decreased and the cells turned rounder and bigger at 96 h post-transfection.
The impact of the component of coating,such as refractory powder filler,adhesive and suspension-agent on the amount of gas evolution from the coating,resistance to high temperature and suspension-ability of coating etc.have been researched.The recipe of coating and spraying process was formulated.The test shows that n…
In this paper,the monomer of 2,5-bis[(4-butyloxyphenyl)oxycarbonyl]styrene and the polymer of Poly{2,5-bis[(4-butyloxyphenyl)oxycarbonyl]styrene were successfully synthesized through intermediate vinyl terephthalic acid and further characterized by IR,NMR and elemental analysis,the results of IR,NMR and elemental anal…
The quenching microstructure and high-temperature behavior of S8Cr4Mo4V ingot with different Mg content were analyzed.The results show that the crystallization microstructure of the steel with the addition of Mg can be improved,the mesh structure of carbide is destroyed,the high temperature thermo-plastic of the steel…
This experiment was conducted to study PAX3 expression and location in alpaca skin.In the study,the distribution of PAX3 protein was studied by immunohistochemistry,the expression level was analyzed by Image-Pro Plus software and Western blot.The result showed PAX3 protein was mainly located in melancytes during the b…
The various pipeline leak detection technologies based on hardware and their application conditions for the past few years at home and abroad are summarized, and the advantages and disadvantages of various methods are introduced. The development trend of pipeline leak detection technologies is analyzed. The advanced i…
The present situation of domestic and foreign research in surface modification technology of pure copper is reviewed.The main surface modification technologies used on pure copper are introduced,including electroplating,thermo-chemical treatment,thermal spraying,laser cladding and so on.And the main advantage and disa…
After welding,TC4 thin-walled structure shows large welding deformation.Welding with impacting rotation compression was utilized to solve this technical problem.The amount of impacting rotation compression stress is a critical influencing factor of the technology.In order to know the stress value,the measuring system…