Materials Literature
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The main purpose of the work presented here is to evaluate different methods for quality control of polymeric insulated HVDC cables.The insight gained can be used to evaluate proposed test methods for quality assurance of long lengths of polymer insulated power cables.Laboratory experiments were performed using both R…
The effects of various aging treatments on intergranular and exfoliation corrosion susceptibility of Al-Zn-Cu-Mg-Zr alloys containing Sc were studied using corrosion tests,polarization curve and electrochemical impedance spectroscopy(EIS).The results show that the naturally aged(NA) alloy has the highest susceptibilit…
Bi2Te3-ySey thermoelectric films were prepared by electrochemical deposition in the aqueous solution containing Bi3+,HTeO+2,Se4+.Cathodic polarization curves and growth processes of thermoelectric films were studied.The morphology and the composition of the films were analyzed by SEM and EDS.The results indicate that…
The chemical structure of PAN fibers heat treated at 100~260℃ in nitrogen atmosphere was explored by infrared absorption spectrometry and solid-state 13C nuclear magnetic resonance imaging(13C-NMR).It can be concluded that the C≡N bond in PAN molecules has a low activity energy prior to cyclize,and then transforms int…
It presented a sampling algorithm for the efficiency calibration of rectangular waste container which was combined with the integral method using Monte Carlo and one numeric method based on the Beck formula. The angular response function and effective frontier area(EFA)were seen as the response parameters of detector,…
Four species of Surirellaceae(Bacillariophyta) are first reported in China from Xinjiang and Yunnan Province in this paper,specifically Cymatopleura cochlea Brun,Surirella visurgis Hustedt,Campylodiscus clypeus Ehrenberg and Campylodiscus levanderi Hustedt.The taxonomic characters,light microscopy(LM)and scanning elec…
An imidazoline inhibitor was synthesized from oleic acid and diethylenetriamine as reactants,and triethylenetetramine as water carrying agent.The influences of inhibitor concentration,synthesis temperature and reaction time on corrosion inhibition performance were studied by orthogonal experiment and weight loss metho…
For the die early failure because of plastic deformation,the warm extrusion process of a shell part was simulated using Deform finite element software.Temperature field distribution of mould was acquired.Heat zone thickness of the die front end was acquired with different extruding speeds.The results show that mould p…
The interaction proteins of rubber elongation factor(REF) were screened using yeast two-hybrid system.A bait vector pBD-GAL4-REF without auto-activation was constructed by subcloning ORF cDNA of REF gene into the yeast two-hybrid vector pBD-GAL4,and the pAD-GAL4-2.1 cDNA prey library was prepared with mRNA extracted f…
To determine the optimal refrigerating method for low temperature recovery(LTR) unit in propane dehydrogenation to propylene process,the simulations of LTR unit were performed by PRO/Ⅱ 8.2.The influences of temperature and pressure on separation effection were analysed,and the optimal separation temperature and pressu…
Precipitation behavior of complex microalloyed carbonitride,(Nb,V,Ti)(C,N),and AlN in austenite in Fe-Nb-V-Ti-Al-C-N system during hot rolling were quantitatively calculated on the basis of precipitation thermodynamics and kinetics,and the influence of the hot deformation temperature on the precipitation behaviors was…
Actins play extremely important roles in plants. To date, no full-length cDNA actin genes have been reported in mulberry. In this study, we cloned three core fragments, two full CDS, and one full-length genomic sequence of actin genes from mulberry by means of homologous cloning and PCR strategy. The three mulberry ac…
The line shapes used in XPS and their combination were introduced in detail;the background subtraction methods and their effects on analysis results were discussed as well.
Two logarithmic penetration expressions of fibrous media were compared theoretically.It is shown that selection of inlet velocity results in these two expressions.Given the common characteristics of solid fraction and diameter,the combined effects on media penetration were investigated:(1) solid fraction and single fi…
Objective To report a self-developed cell carrier made of silicone rubber membrane,and to calculate the strain distributions on the membrane and analyze biocompatibility of the silicone rubber by three-dimensional(3D) finite element method(FEM) so as to make a comprehensive evaluation on this silicon rubber membrane a…
Based on the thermal analysis kinetics,thermogravimetric analysis(TG)and derivative thermogravimetry(DTG)were employed to evaluate the thermal decomposition behaviors of GAP-TPE in Ar atmosphere.A peak separation was performed to separate the thermal decomposition of GAP-TPE into three stages according to the characte…
We observed the microscopic structure and sub-microscopic structure of three Botryococcus braunii strains(AGB-Bb01,AGB-Bb02 and AGB-Bb03) isolated from different sites.Also,the phylogenetic trees involved in 16 strains of B.braunii were reconstructed based on the genetic distances and sequence similarities of 18S rDNA…
In order to detect underwater pipeline leakage and locate leakage points in real-time,an in-line distributed optical fiber sensor was developed based on the principle of Sagnac interferometers.The measuring principle and the leaking source location method for the detection system were analyzed.The effect of the pipeli…
The cellulose-strontium aluminate composite film was prepared by casting the dispersion of strontium aluminate phosphors in cellulose ionic liquid solution.This cellulose ionic liquid solution was easy obtained by dissolution of microcrystalline cellulose in ionic liquid 1-butyl-3-methylimidazolium chloride([Bmim]Cl).…
By grafting tungstophosphoric anion based ionic liquid[BsAIm]_3[PW_(12)O_(40)]on the surface of silica,three kinds of chemical bond-typed solid acidic catalysts with different bonding density were prepared.The structure of these catalysts were characterized by UV spectrophotometry,FT-IR,~1H NMR, TG-DTA,elemental analy…