Materials Literature
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Effect of three kinds of humectant,hyaluronic acid,glycerin and pro-vitamin B5 on skin performance including skin hydration,transepidermal water loss(TEWL),skin elasticity and skin fine lines were examined.Results showed that glycerin significantly increases skin hydration within 6 h after smearing,while hyaluronic ac…
Nano-crystalline cellulose(NCC) was prepared by sulfuric acid hydrolysis from Pennisetum sinese.The effect of the sulfuric acid concentration,reaction temperature and reaction time on the separation process and the yield of cellulose were analysed.The optimized parameters were achieved by process optimization experime…
In this paper,the typical defects that were found in testing of operating gas insulated switch)GIS) using X-ray real-time direct radiography(DR) were introduced.The bus line of 110 kV GIS,equipped in certain transformer substation of Yunnan,was found unusual sound while operating.Via DR testing,we found the broken ins…
The genetic relationship between 23 color cocoon silkworm varieties cultivated by Ankang University was analyzed by SSR markers.The results showed that 576 bands were amplified by 22 pairs of SSR primers,and the polymorphism rate was 36.44%;the primer with which the largest number of amplified bands was obtained was S…
Objective To investigate the MRI and clinical features of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). Methods A retrospective study about 11 inpatients suffered CADASIL was carried out in Beijing Tiantan Hospital from August 2010 to November2012, which included…
The CO2 corrosion kinetics of N80 steel was researched by using high temperature and high pressure corrosion test,corrosion product film analysis and electrochemical measurement technology.The results show that,as time went on,corrosion rate showed exponential decline law.The two stages for the formation of corrosion…
Vinyl ester resin possesses excellent chemical resistance.It is widely used in copper metallurgy industry.In this paper,the general process of acid making in copper metallurgy industry is introduced.The characteristics of vinyl ester resin and its application cases in anti-corrosion projects are analyzed,in order to p…
Effects of pre-heat treatments and cold rolling reduction on recrystallization texture of 6082 aluminum alloy were investigated by ODF(orientation distribution function).The results show that the recrystallization textures of 6082 aluminum alloy consist of cube texture and rotated cube texture components.For the sampl…
According to the characteristics of stainless steel in tandem cold rolling and based on transfer rate and genetic factor,a set of models about surface roughness of stainless steel strips were derived theoretically.First,the surface roughness of the SUS430 stainless steel strip was studied through lubrication experimen…
The wet layup laminates were cured by hot bonder and the internal quality was analyzed by metallurgical microscope.For three kinds of damage in honeycomb sandwich panels,the wet layup scarf repair by hot bonder was adopted,and an experimental study was conducted for the edgewise compressive strength of specimens befor…
The protonation and deprotonation chitosan solid films were prepared by solution method.The two kinds of films microstructure and physical-chemical changes have been characterized by scanning electron microscopy(SEM),X ray diffraction(XRD),the thermal gravimeric analysis(TG)and differential scanning calorimetry(DSC).D…
A two-dimensional axisymmetric and three-dimensional mixed numerical models were designed for Czochralski silicon single crystal growth in horizontal magnetic field.The results show that the exact distribution of temperature and velocity can be calculated only through three-dimensional simulation due to non-axial symm…
The(Ti,Al)N coatings were deposited at different bias voltage by ion plating assisted with hollow cathode facility produced in China.X-ray diffraction method was used to study the composition and residual stress of the(Ti,Al)N coatings.There were macro-particles on surface of(Ti,Al)N coatings analyzed by SEM.The adhes…
The graphene(GR) was prepared via a facial oxidation-reduction method,and its adsorption behavior with tetracycline(TC) was also studied.The characterization results,such as X-ray diffraction and transmission electron microscopy(TEM) observations,showed that the synthesised GR possessed laminated structure and high su…
Environment-friendly plastic has lower stability,and is easy degraded into harmless substances in the natural environment.In this paper,various environment-friendly plastics were described,including photo-degradation plastics,microbial degradation plastics,synthetic polymer biodegradable plastics,natural polymer biode…
Takes the denitrification transformation in a coal-fired power plant with 2 units of 300 MW in East China project as sample,the mainstream denitrification technologies are analyzed from the points of view of technology and economy. Analysis results show that low NO x burners( LNB) and selective catalytic reduction tec…
Au nanoparticles catalyst Au@TiO2 /MCM-22 was prepared by photocatalytic direct reduction method and characterized by ICP,XRD,TEM,etc.The catalyst was applied in the catalytic cyclohexane selective oxidation.The results showed that Au loading efficiency in preparation of Au@ TiO2 /MCM-22 was significantly improved,and…
A new zinc coordination polymer, [Zn2(bpp)(tpa)2H2O] 1 (bpp=1,3-bis(4-pyridyl)-propane and tpa=terephthalate) has been hydrothermally synthesized and characterized by elemental analysis, IR and single-crystal X-ray diffraction. X-ray crystal structure analysis reveals that complex 1 crystallizes in monoclinic, space g…
In this paper,liquid phase reduction method was applied to prepare superfine copper-silver coated powder.Copper powder was prepared with ascorbic acid as reductant while glucose beforehand reduction method was applied,and copper coated with silver powder was prepared with hydrazine hydrate as reductant.Besides,differe…
A bilayer coating was prepared by electrodepositing a polythiophene(PTH) film on the surface of 304 stainless steel treated by alternating-potential-step passivation.Its structure was characterized by FTIR spectroscopy,SEM and AFM.Its corrosion resistance was also evaluated by electrochemical methods.The results indic…