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。
The preparation conditions of alginate-chitosan-alginate (ACA) microcapsules with liquid core and good mechanical strengthwere optimized by response surface method. In the first optimization step,a Plackett-Burman design was used to evaluate the influence of related factors. The concentration and pH of chitosan soluti…
The effects of apoptosis and NO level were explored with model of AVM on king pigeon brain neurocytes in vitro culture.Apoptosis was observed by TUNEL,the relative survival rate of neurocytes was detected by MTT,the percentage of apoptotic cells was detected by Flow cytometry,and the production of NO in cells was acqu…
A novel phosphorus-nitrogen quaternary ammonium salts(PAHAC) was synthesized with phoshorus oxychloride and neopentyl glycol as main raw materials.PAHAC was characterized by FTIR,1H-NMR and HRMS.Montmorillonite(MMT) modified with PAHAC(PAHAC-MMT) was prepared by ion-exchanging of Na+-montmorillonite(Na-MMT) and PAHAC.…
The strip form defects existed in ZK61M magnesium alloy forgings have been analyzed by macrostructure-scope,microstructure-scope,scanning electron microscope and energy spectrometer.The result shows that the strip defects are primary segregation of Zn-Cr.The forming mechanism and effective factor of the primary segreg…
Glucosamide-based trisiloxane surfactants,with the performance of surface tension reduction,lubricity and waterproof property,has been used as softener,fatliqours and other preparations in leather industry. The structure and properties of glucosamide-based trisiloxane surfactants were briefly introduced,and the applic…
The foreign research work on the curing behavior of novolac-type phenolic resins was reviewed,including numeral simulation and experimental studies using infrared spectroscopy,nuclear magnetic resonance,differential scanning calorimetry,thermogravimetric analysis,and scanning electron microscope.The modification studi…
Objective In this experiment,the model of Platform Switching Implant was simulated by adopting three-dimensional(3D) finite element method and the stress distribution of implants planted in different depth was analyzed when the platform switching implant system was applied with different loading in front maxilla.Metho…
The conductive polyaniline has great potential and practical value due to the excellent conductivity,chemical stability and corrosion resistance.The research status at home and abroad,anticorrosion mechanism of polyaniline and its application in coatings were introduced.
The sources of materials causing sulfur contamination discoloration on PVC profiles surface were studied in detail as well as conditions of influencing sulfur contamination discoloration.Solutions were proposed.
The main powerhouse is one of the most important structures in thermal power plants,of which the aseismic performance is the main standard to appraise the design of workshop structure.Three-dimensional finite element model of the main powerhouse is made by MIDAS/GEN to execute pushover analysis,which is means to carry…
Objective:To explore a method for quickly isolating,culturing and identifying epidermal stem cells of human. Methods:Epidermis was obtained by digesting human foreskin with DispaseⅡand Trypsin-EDTA,with observation of the cell growth by inverted microscope and examination of cell cloning efficiency and duration of clo…
Based on the coupled method of cellular automaton(CA)method and finite element(FE)method,the crystal grain growth process of producing single crystal copper pole by ohno continuous casting(OCC) method was simulated.The temperature distribution and the location and shape of the interface between liquid and solid were d…
The isothermal and constant strain rate compression tests of TB6 alloy casting were conducted in the range of 800-1150 ℃ and 0.001-10 s-1 by Thermecmaster-Z simulator.According to the experimental data,the alloy forging process was optimized by means of processing map technology based on Murty criterion,and micro-defo…
In this paper,it concluded the optimum process route and technics parameters of the cotton/cashmere interlacing jacquard blanket by studying the process route and technics parameters of them.The warp material is the pure cotton yarn of 47.6 tex×2,while the weft material is the blended yarns which compound of 60% white…
Introducing a new craft of shorter flow,lower cost and faster efficiency except the bobbin dyeing or the skein dyeing.By selecting reasonably process line and determining optimum process parameter,conditions,removed non-fiber components of flax,finished degumming;bleaching,dyeing,pledged tough silk that was not destro…
s-polarization and p-polarization will separate when thin-film filters are used in tilted incidence.Central wavelengths of the two polarization beams do not coincide with each other and pass-band width of s-polarization is less than that of p-polarization.However,the polarization characteristics of the two polarizatio…
The chemical components of kudzu-vine root residue were analysed.It is discovered that the content of cellulose is less than that of ramie and flax,but the content of lignin is much more than that of stem fibre materials.In case that textile fibres are extratcted from kudzu-vine root,the lignin should be discarded and…
Li4Ti5O12 is the most potential candidate anode material of lithium-ion power battery for hybrid electric vehicles.In order to improve its rate performance,through doping and heat treatment on Li4Ti5O12 with urea as ni-trogen source,TiN high electrical conducting layer was prepared by insitu selfgrowing on the surface…
Objective: To investigate the effect of laser surface hardening technology on mechanical properties of dental cobalt-chromium alloy.Methods: The specimens made of cobalt-chromium alloy were processed by laser surface hardening technology in this study.The surface metallographic structure and morphology changes were ob…
By devolopment in twenty years,a OverCrossing developments on the principal functional equipments and production lines on EPC has been obtained in our Country.But there are still somephenomena of blind foundry construction,rush choice on correlative equipments without sufficient investigation and argumentation in many…