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 copolymer of humic acid(HA) and acrylic acid(AA) was studied as scale inhibitor,humic acid was modificated by acrylic acid.The effect of molar ratio,initiator dosage,temperature,time on the performance of scale-inhibitor were studied.The results showed:the molar ratio of HA to AA is 1∶1,initiator dosage percentage…
Effects of delamination of needled preform on thermal insulation of C/C-SiC chamber in airbreathing engine have been investigated experimentally.The cause for delamination of needled preform was analyzed.The influence of the winding tension on the delamination of needled preform was studied.The results indicate that t…
An electrochemically polymerized polyaniline film modified pencil graphite electrode was connected with the novel electrochemical testing system,and its pH-response was studied by the zero-current potentiometry. As shown by the experimental results,the polyaniline prepared was present mainly as the intermediate oxidat…
A 3D finite element model was developed to analyze magnetic field,electromagnetic force,current density,and the Joule heating field for electrodes,slag,and ingots in an electroslag remelting process with two series-connected electrodes.The proximity effect dominated in the two-electrode ESR system,while the skin effec…
Gadolinium-based contrast agents have been administrated widely for MR angiography.However,the realization that they may be a factor in the development of nephrogenic systemic fibrosis(NSF) in patients with impaired renal function has created a great interest in the non-contrast-enhanced MR angiography techniques.Siem…
In this study,a bacterial strain using fluoroglycofen as sole carbon source was isolated from activated sludge of wastewater treatment tank in an insecticide factory.It was identified by physiological-biochemical identification and 16S rRNA gene sequences homology analysis,it belonged to Staphylococcus saprophyticus.T…
Effect of Ce on hot ductility of 00Cr17 high-purity ferrite stainless steel was investigated by means of thermal simulation on a Gleeble-2000 thermomechanical simulator,optical microscopy,scanning electron microscopy and transmission electron microscopy.The results show that addition of Ce to 00Cr17 steel completely r…
The nucleation process of KDP solution was investigated under different supersaturation ratio and concentration with EDTA and KCl double doped.The induction period of supersaturation solution under different growth conditions was measured.According to the classical nucleation theory,the thermodynamics and kinetic para…
Softening behavior of austenite in a low carbon bainitic steel under different conditions was investigated on a Gleeble 1500 thermo-mechanical simulator by stress relaxation method.The recrystallization kinetic curves were measured at different temperatures and strain rates.At the same time,the static softening ratio…
SmFeO3 powders were prepared by solid state reaction.The phase composition and surface appearance of the obtained SmFeO3 powders were characterized by XRD,and SEM,respectively.In addition,the microwave electromagnetic properties,the infrared emissivity and the reflectivity at 1.06μm wavelength of SmFeO3 powders were m…
The use of energy storage devices are exposed to more and more problems,of which the biggest problem is the short life and heavy metal pollutants recycling issues.Supercapacitor has the advantages of faster charge,long cycle life,little pollution,and etc.Single supercapacitor can not meet the voltage demand due to its…
CeO2 nanotubes were synthesized by hydrothermal method using PEO-PPO-PEO(P123) as surfactant.The effects of reaction time,reaction temperature and concentration of surfactant on the formation of CeO2 nano-tubes were investigated.The microstructures of the samples were characterized by transmission electron microscope,…
The thermal decomposition process of calcium carbonate at different heating rates was investigated under pure N2 atmosphere with the thermal analysis techniques.The apparent activation energy has been derived into the rate activation energy(Er)and the mode function activation energy(Ef(α)),based on the differential me…
By building the model of the penetrator with enhanced lateral efficiency(PELE) and target of steel plate,LS-DYNA was used to simulate penetration of PELE filled copper,2024-T3 aluminium and nylon against 4340 steel plate at the impact velocity of 1 500 m/s.The results show that the filling material has important influ…
PSU fibers with a diameter in a range from nano-scale to micrometer were prepared by electrospinning.The effect of solvent,mass concentration of solution,tip-to-collector distance,voltage,and solution flow on the structure and morphology of eletrospun PSU fibers were investigated by SEM.The results revealed that,with…
The early hydration activity of high-titanium slag was stimulated by the alkali activator such as NaOH,Ca(OH)2 and Na2CO3,and chemical activation technology and activation mechanism of high-titanium slag were analyzed so as to provide theoretical guide for comprehensive utilization of high-titanium slag.The results sh…
In recent years,permanent metal stents are employed in the majority of interventional therapies;nevertheless,such kind of stents carries the problems of thrombosis and restenosis.Therefore,thebiodegradable magnesium alloy stent has become the focus of attention.Theoretically,it has overcome theproblems caused by perma…
The biodegradable composite films were prepared from corn stalks cellulose microcrystal(CSCMC) as the filler and poly(lactic acid)(PLA) as the polymeric matrix.The crystallinity,the tensile properties and the thermal properties of the composite flim were tested.The results show that the tensile properties and the ther…
To research and probe into the effect of the forming conditions of bagasse fibre SMA Mixture on structural indicators,this paper details an in-depth analysis of the forming temperature of mixture and the effect of bagasse fiber content on structural parameters of SMA mixture by adopting the middle value of SMA-16 grad…
Three new exocyclic ring-fused boron-dipyrromethene(BDP)dyes with N,N-dimethylaniline,p-methoxyphenyl or phenyl subunit at meso-position were synthesized.Their absorption,steady-state fluorescence and electrochemical properties were investigated.The spectrofluorometric titrations were performed to examine their respon…