Materials Literature
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The orthogonality test was used to obtain the optimal technology for preparing magnetic nanoparticles coated with covalentlybound biofunctional polyethyleneimine(PEI).We propose PEI-Fe3O4 magnetic nanoparticles as a mediator for hyperthermia in vitro and in vivo.The processing of polyethyleneimine modified Fe3O4 magne…
On macroporous resin XAD-1180 hydroxocobalamin absorption and elution properties were studied.The static adsorption capacity,adsorption rate,elution rate and the dynamic adsorption capacity and elution rate was determined through detecting hydroxocobalamin concentration by UV spectrophotometer.The results show the opt…
The β-Ni(OH)2 nanoparticles with the size of 50~90 nm were synthesized by hydrothermal crystalline treatment of the amorphous nickel hydroxide precipitation.The structure and morphology of the asprepared nanoparticles were characterized by field emission scanning electron microscopy(FE-SEM) images,X-ray diffraction(XR…
The starch-based biodegradable plastics have wide application prospect in many fields such as package,agriculture and daily expenses.The latest developments and research achievements about starch-plastics at home and aboard were described.The shortcoming of starch-plastics in development was pointed out,and the develo…
In order to obtain some suitable process parameters of a drawer rail in roll forming,the analysis and calculations for the middle slide component of a product were completed using the method of combining theoretical calculation with finite element method simulation.The results indicate that 10 forming passes are neede…
Time resolved optical properties of CdSe tetrapod nanocrystals where studied. The results show that the decays of photoluminescence (PL) intensities for tetrapods in solution and on insulating silicon substrate can be well fitted by a bi-exponential function. Based on the emission-energy dependence of carrier lifetime…
The paper shows the main surface defects of cold rolling automobile sheet in BX Steel.The main surface defects are unusual defects.The typical familiar defects are sliver and punctuates that are on the rolling direction.The inclusions of steel-making and scales of hot rolling process are the main causes of defects.The…
Using expanded graphite(EG)/activated carbon composites(EGC) as substrate and sucrose as raw material through introducing carbon coated nano-TiO2,supported nano-TiO2 expanded graphite/activated carbon composites(TiO2/EGC) were prepared.The micro-morphology,pore structure and related properties of the TiO2/EGC were cha…
A uniformly sized molecularly imprinted polymer microspheres(MIPMs) for chloramphenicol(CAP) has been prepared by a two-step swelling and polymerization method using 2-(Diethylamino) ethyl methacrylate(DEAEM),ethylene glycol dimethacrylate(EGDMA) and polystyrene microspheres as the functional monomer,cross-linker and…
In order to know the energy absorption property of rubber,experimental study on dynamics of three kinds of rubber with different formula was carried out by Split Hopkinson Pressure Bar test,the stress-strain curves under different strain rates were compared.The results show that dynamic young′s modulus,peak stress,ene…
The green organic light-emitting (OELD) devices with a structured of ITO/2T-NATA(15 nm)/NPB(25 nm)/Alq3(20 nm):C545T(x%)/Alq3(30 nm)/LiF(1 nm)/Al(100 nm),here x varied from 0 to 5 with a step of 1 percent,were prepared via vacuum deposition. The electroluminescence characteristics of the devices with different concent…
Porphyrin have become ideal compounds models for the study of molecular devices because of its easy modification,excellent light-sensitivity,rigidity and flexibility,electronic buffer,photoelectric magnetism and chemical stability.New research progress on porphyrin and its derivative in energy conversion molecular dev…
State Grid Corporation and Southern Power Grid Company have taken the DC ice-melting as the main method to resist the ice accident on transmission lines.The heat balance of DC ice-melting on transmission lines with heat transfer theory was analyzed,and a calculation model for critical ice-melting current and ice-melti…
The graft polymerization of hydroxyethylmethacryate(HEMA) on room temperature vulcanizing silicone rubber(RTV) by UV radiation in liquid phase was carried out.The structure and properties of graft copolymer were studied by FT-IR,SEM and contact angle measurement.And the effects of photoinitiator and radiation time on…
The floated phosphate tailing from Wengfu phosphate rocks in Guizhou Province of China was analyzed by using XRD,EPMA,SEM and so on.Beginning with its chemical and phase composition,morphology,grain and internal structure,the existing state and characteristic of P and Mg were researched so as to reveal the similaritie…
A process to prepare tin-based composite coating materials used for nickel-zinc battery anode collector was explored by composite electrodeposition technology.The morphology of the materials was characterized by SEM,and the prepared(tin-based) composite coating materials was contrasted with common smooth plane tin-bas…
By using the monomers of acrylic esters,functional monomer——β-hydroxyethyl acrylate(HEA),trimethylolpropane triacrylate(TMPTA),and pentaerythritol triacrylate(PETA),the thermosetting acrylic resin was synthesized.The coil aluminium paint suitable for aluminum foil was prepared together with butanol Methylated amino re…
Collagen,a significant protein in mammalian connective tissue,is used extensively in many fields due to its good biological characteristics.In the extraction of typeⅠcollagen,the influences of controlling the conditions such as pH,temperature,enzyme on the results are reviewed.The relationship between various factors…
In the article,it is analyzed the main causes for pulverization of RE-silicide alloy produced with current manufacturing technique from raw materials of smelting alloy,technological conditions,content of silicon in the products,content of inclusions in alloy,and cooling velocity of pouring alloy,etc,as well as propose…
The current research of diatoms focused on its physiological and environmental monitoring functions.Its genome reseach had greatly promoted the progress of the diatom study.The researches from different scales,including the part of cells,individuals,species and communities,would reveal the laws of physiology,ecology,o…