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。
Objective To study the effects and safety of oral treatment with low-molecular fish collagen hydrolysate on female facial skin.Methods Thirty volunteers were randomly to divide into testing group and the control group.The testing group(15 cases) was given 6 g low-molecular fish collagen hydrolysate per day for 30 days…
The adsorption characteristics of calcined layered double hydroxides with a Mg to Al mole ratio of 3:1(MgAl–LDO,lay-ered double oxide) were investigated to remove a weak acid dye acid violet 90(C40H27CrN8Na2O10S2,AV90).In the light of memory effect,MgAl–LDO is able to recover their original layered structure in an aqu…
At room temperature,CdS quantum dots(QDs) were prepared by aqueous solution under ultrasonic condition and characterized by transmission electron microscopy,X-ray diffraction,UV spectroscopy,fluorescence spectroscopy and other means of characterization.The effects of the factors,such as initial pH,molar ratio of react…
Carbamazepine(CBZ)as an antiepileptic drug has been found existed in surface water and even in drinking water,which together with other kinds of PPCPs has become the focus of potential environmental risk management.Bench scale experiment was carried out on the basis of conventional water treatment process including co…
A metal coordination compound,Cu(NH3)2(FOX-7)2,was synthesized by mixing 1,1-diamino-2,2-dinitroethylene potassium salt [K(FOX-7)·H2O] and Cu(NO3)2·3H2O in aqua ammonia.Single crystals suitable for X-ray measurement were obtained by slow evaporation in aqua ammonia at room temperature.Crystals of Cu(CH3)2(FOX-7)2 reve…
Antimicrobial coatings on hydrophobic plastic surfaces were directly fabricated by layer-by-layer deposition of cross-linked poly(allylamine hydrochloride) and dextran microgels containing silver nanoparticles(Ag@PAH-D) with poly(sodium 4-styrenesulfonate)(PSS).The as-prepared Ag@PAH-D/PSS microgel films are effective…
Au nanoparticles with different sizes were synthesized by seeding growth method using hydroxylamine hydrochloride or ascorbic acid as reductants.The effects of different reductants on the morphology,particle size and monodispersity of products were investigated.The results showed that monodispersity of Au nanoparticle…
Based on the detecting data of SF6 decomposition products accumulated for years and the analyses of many fault cases of SF6 electrical equipment,this paper expounds the theory and feasibility of fault diagnosis for SF6 electrical equipment by detecting the content of SF6 decomposition products,and analyzes some real c…
At present,environmental and societal concerns is promoting development of new biodegradable po-lymers and foam plastics from renewable resources.Plant oil is one of the most important class of renewable sources,and can be used as substitutes of petroleum to prepare some polymers and foam plastics.The development and…
Outlined in the laboratory research and industrial production process,how to use different ways of thinking to solve technical difficult problems in hot-dip aluminum technology.
Al-doped ZnO(ZAO) thin films were deposited on the ordinary glass substrate by sol-gel method.The structure and optical properties of prepared ZAO thin films were studied by using X-ray diffraction(XRD),scanning electron microscopy(SEM),ultraviolet and visible(UV-Vis) spectroscopy,and photoluminescence(PL) spectra.The…
Stable Au nanoparticles with strong Raman Signals were synthesized by replacement reaction method.The as-made samples were characterized using UV-Vis spectroscopy,TEM,EDX,which showed that the Au nanoparticles possess uniform structure and dispersancy.In addition,we studied the SERS activity of the Au nanoparticles by…
The microstructure and the color of nacreous layers in bivalve shell of Cristaria plicate are studied by scanning electronic microscope,reflectance spectrum and theoretical simulation.The results show that:(1) Prismatic layer has the bar-structural property,which is nearly perpendicular to nacreous layer.(2) In the di…
The sources and characteristics of VC wastewater are briefed,and some wastewater treatment technologies,including physical-chemical treatment,biotechnology and other united treatment,are put forward.Besides,the advantages and disadvantages of the various technologies are described.Finally,the research directions of th…
3-D numerical simulations of a stiffened metal plate's dynamic response under close-distance localized blast loading were conducted with the finite element software LS-DYNA.And the blast loading on the stiffened plate was analyzed primarily.The rationality of the simulation technology was verified by comparing the sim…
In order to predict defects of a magnesium alloy wheel that may arise during the low pressure die casting,a three-dimensional mapping software was used to establish the solid model and the filling and solidification stages of the magnesium alloy wheel were simulated by the Procast software.Because the pouring velocity…
X80 pipeline steel specimens were treated by electrochemical hydrogen charging under various current densities and charging time.The polarization resistance and corrosion rate of X80 steel were analyzed in Yingtan simulated soil solution under the different hydrogen charging conditions.The results show that with the h…
Synergistic effect of Pb2+adsorption by tourmaline and microorganisms was investigated in a lab-scaled experiment.Microorganism used as bio-sorbent were B.subtilis and P.chrysosporium and their adsorption capabilities of Pb2+ were compared.Results showed that B.subtilis was worse than P.chrysosporium within the initia…
Discotic liquid crystalline molecules,consisting of a flexible alkyl chain and a rigid block,have a strong ability to self-assemble into a variety of columnar nanostructures in the liquid crystalline phase.In this paper,we report the synthesis and characterization of the self-assembly behavior of the three kinds of tr…
With the purpose of researching the defects' influence on detonation velocity of melting-cast explosive,the detonation velocities of RDX/TNT melting-cast explosives with different kind of defects in charge were studied using experimental method.It is found that the defects in different components lead to different inf…