Hongbo Zhang, Zhongshu Yang
In this paper, a generalization of differential electromagnetic equations in fractional space is provided. These equations can describe the behavior of electric and magnetic fields in any fractal media. The time evolution of the fractional electromagnetic waves by using the time fractional Maxwell’s...
Wangnian Zhang, Ning Deng, Weijie Liang, Lili Peng, Xin Zhao
In this paper the influence of beforehand condition and sinter degree to capability of sintered dolomite has been investigated by means of measure actived degree and capability of high temperature sintered and property of resist hydrate of different material granularity after different beforehand sinter...
Shengzhao Gong, Menyi Xu, Aijuan Feng, Yan Liu
Ethyl 4-hydroxy-3-methoxycinnamate was synthesized by reaction of ethanol and 4-hydroxy-3- methoxycinnamic acid using an efficient cation-exchange resin as catalyst under microwave irradiation. The catalyst activity was investigate by single factor experiments. The reaction conditions - amount of catalyst,...
Yan Xiang, Jin Liang, Hong Xia Liu, Xiao Lian Zhang
The magnesium alloys with rare earth element Gd were prepared by induction melting furnace. Influences of Gd on the microstructure and mechanical properties of AZ91D were investigated. The results showed that addition of Gd to AZ91D alloy could refine the microstructure including primary -Mg phase and...
Youkui Feng
The complex oil-water relation of study area related to sedimentary facies. But the unconformity resulted from frequent tectonic movements puzzled the study of sedimentary facies. Based on the detailed study on the cored wells, the main identification marks of sedimentary facies have been analyzed via...
Zheng Jia
Patents are the manifest output of nation’s market layout. This paper explores the development of five nanotechnology fields in Germany, including Nano- materials & process, nano- electronics & devices, nano- biology & medicine, nano- instrument & measurement and the others, through the analysis of nanotechnology...
Xiaomin Wang, Peiqing La, Hailian Chao, Hui Nan
Ni-P, Ni-P-TiO2 and Ni-P-SiC composite coatings on AZ91D magnesium matrix composite were prepared by the electroless composite depositing. The surface morphology of the coatings was observed by scanning electronic microscopy(SEM) and electron probe X-ray microanalyser(EPMA). The corrosion resistance...
Jianyun He, Ruoyun Wang, Xianchun Ye, Xia Tang, Weijia Kang, Weimin Yang, Hong He
A silicone resin as base material, composite powder as filler, and the electronic potting silicone material was prepared using a silane coupling agent -3(trimethylsilyl) propyl methacrylate (KH-570) to do surface treatment. The influence of surface modification and its amount on the flame retardant,...
Xiao Sui, Rongyan Yue, Lan Wang, Yuqian Han
Subcritical 1, 1, 1, 2-tetrafluoroethane (R134a) extraction is a modern extraction technology in natural product perpartion. The optimized process of extracting astaxanthin from Antarctic kill (Euphausia superba) through subcritical R134a was systematically investigated in this work with respect to the...
Yongjin Lu, Rui Lin
For the stern-shaft mechanical sealing device, spring pieces and sealing rings are the main study objects of mechanical behavior and characterization. Consequently, the in-situ compression tests for the spring pieces were performed, where special test equipments were applied to ensure the measurement...
Huimin Zhang, Qingxiu Jia, Fengjiao Shao
Biomass is a feasible substitute for petrochemicals, providing many of the same chemical building blocks that are required to fabricate durable and high-performance materials. In this paper, the radiation crosslinking of a bio-based polyamide has been investigated over a range of irradiation dose (50–250...
Sen Zhang, Quan Zhou, Hao Zhang
Solidified structure and mechanical properties of Mg97Y2Cu1 alloy reinforced by long period ordered structure with 0-0.3%wt Sr addition were investigated. The results indicate that the addition of Sr ranging from 0.1% to 0.2%, solidified structure of the alloy refines and homogenizes gradually. When...
Rongfeng Zhong, Hongying Xia, Feng Zhao
Copper (I) complexes comprise an important class of luminescent materials in organic light emitting diodes (OLED). A Cu(I) complexes, [Cu(POP)(fluPy-Imidazole)]+ (1), where fluPy-imidazole = 2-(4,5-dihydro-1H-imidazol-2-yl)-5-(9H-fluoren-2-yl)pyridine, POP= bis[2-diphenylphosphino]-phenyl]ether, was...
Yanhua Chen, Shuo Wang, Linlin Liu, Le Wang, Jiannan Li
This paper describes an investigation of properties of 3 ACCMs, including cathodic disbonding, hot water dipping in, shear strength and bonding characteristic. According to standards of oil and gas pipeline, some experiments are carried to determine these characteristics. From these experimental results,...
Guosheng Liao, Pengfei Zhao, Yu Xiao, Haibo Yang
The polycarboxylic slump-retaining admixture was synthesized by methyl allyl polyoxyethylene ether (TPEG) and unsaturated carboxylic acid in redox system. The factors influencing on performance of polycarboxylic slump-retaining admixture such as temperature, reaction time, acid alcohol ratio, the amount...
Jun Zhou, Zhe Yang, Lei Wu, Qiuli Zhang, Xiangyang Chen, Xicheng Zhao
Microwave pyrolysis is a new research method for deeply processing of low-rank coal. This paper conducted comparative study on microwave co-pyrolysis products of low-rank coal under CH4 and N2 atmosphere, respectively. The composition and content of tar and bluecoke were analyzed by gas chromatography-mass...
Maodong Lia, Bo Yang, Xiaocong Wang
The SNCR De-NOx system is an effective denitration technology for MSW incinerator. In this paper, an economic parameter-S: per unit NOx removal cost was established. The results clearly showed that parameter S has a significant change at different loads. The 90% load had the lowest per unit NOx removal...
Yuancheng Zhu, Liu Liu, Yanzhi Liu, Huian Tang
Pnicogen bond is a Lewis acid-Lewis base intermolecular noncovalent attractive interaction in which a pnicogen atom (N, P, or As) is the Lewis acid. It has been known since 2011. In this paper, the topological properties of the particular set of pnicogen bond complexes formed with formaldehyde (HCHO)...
Hongru Liu, Shangping Wu
In this paper, the moisture sorption isotherms were measured of the profiled polyester (trefoil-shaped) fabric at different temperature and relative humidity, the influence of the temperature, relative humidity were summarized, and three kinds of commonly were used empirical models of moisture sorption...
Tian Tian Han, Yan Jun Wang, Shou Ren Wang, Shu Long Li
A compound pore forming agent which can be decomposed constantly in sintering process was designed and prepared. A new cermet sinter was developed by adding the compound pore forming agent into the TiC/M2 matrix material. The influences of content of TiC, sintering temperature and pore forming agent...
Shuai Xin, Weilin Zhao, Ningning Xing
The coupling between the pulverized coal combustion and raw meal decomposition in precalciner of the cement plant with capacity of 5000t/d was investigated by Fluent software. The standard k- model was proposed to simulate the three-dimension turbulence flow. The multiphase was calculated coupling process....
Xingsheng Tong, Chen Wang, Wei Ye
In this study, the AISI410 martensitic stainless steel was treated by plasma nitriding at different temperature, different time and different gas proportion. Then the hardness and microstructure were studied by a variety of analytical techniques. The results show that the hardness of nitrided layer decreases...
Xiuming Peng, Mei Yang, Junrui Wu, Junyi Wang, Biao Liu, Xiqing Yue
In this study, we use the technology of ultrafiltration to separate the natural active peptides from milk, and optimize the conditions of ultrafiltration. The density of the natural bioactive peptides could be assayed through Biuret method. The results showed that the optimized separation conditions...
Xuehua Mao
The solvent extraction of iron ( ) from acidic chloride solutions by decanol in kerosene has been investigated. The solvent extraction results demonstrated that the dissolved iron was present as HFeCl4.2Decanol. Extraction of iron ( ) increased with increased hydrochloric acid concentration in the aqueous...
Qinghao Wang, Xionglu Zhang
3-Praziquantel-4-(4-chlorophenylsulfonyl)-1,2,5-oxadiazol-2-oxide was synthesized via the coupling reaction of praziquante and 1,2,5-oxadiazole in ethylene glycol, and its molecular structure was confirmed by the melting point and spectroscopic data (UV, IR, and 1H NMR). Moreover, it may be a potential...
Zhikang Sun, Xingxing Hu, Liming Huang, Peng Dong, Wuqiang Wen, Zhiping Du
[Cu(phen)(OAc)2]2( -H2O) (phen =1,10-phenanthroline) was characterized by Fourier Transform Infrared Spectrometer and Thermogravimetric analysis, and its catalytic performances were investigated in the oxidative carbonylation of methanol to dimethyl carbonate. The results showed that [Cu(phen)(OAc)2]2(...
Lingzhi Zhao, Liu Zhao, Yanqing Miao, Chunye Liu
Based on the dependence between the AuNPs size and the naked-eye visible color change. This study was designed to develop a highly selective and sensitive towards colorimetric sensing of cysteine in fetal bovine serum by the competitive binding of ATP and thiol compounds (cysteine and homocysteine) towards...
Shuwei Cao
Based on design of chemical composition, reasonable adjustment and optimization of smelting and continuous casting process, reheating process, rolling process and cooling process etc., Anyang Iron And Steel Group Co., Ltd. produced successfully 5.5 mm high carbon steel wire rod grade C82DA for conversion...
Lei Zhu, Jingsong Wang, Zhengwei Xiong, Qingwei Guo, Weiming Zhang, Ping Sun
Electrolytic method is applied to recover nickel from the simulated nickel-containing electroplating wastewater. The experiment studied the main parameters affecting the recovery of nickel, including titanium plate, titanium mesh and graphite as cathode materials, other parameters such as initial concentration...
Guanzhong Sun, Shanshan He, Hongliang Zhang, Wei Li
Basing on TG-DTG-FTIR technology, researching about kinetic activation energy E about eucalyptus and absorption bands and characteristic peaks of volatile product under the heating rate 10 min-1, 30 min-1, 60 min-1respectively. The experimental results show that eucalyptus pyrolysis process can be divided...
Zhendong Zhang, Dawei Ma, Qiang He
On the basis of the thermoviscoelastic constitutive equation and classical Kirchhoff thin plate theory, the motion differential equation of viscoelastic rectangle plate is deduced. Then the expression of rectangle plate deflection under circle distributed dynamic load and temperature is deduced via Laplace...
Jian-Yun He, Xia Tang, Le Chang, Yu-Mei Ding, Wei-Min Yang, Peng-Cheng Xie, Xian-Chun Ye
Different from the traditional “physical manufacturing” mold injection, UV curing mold injection is a new manufacturing method which combines mold injection process and UV curing technology. On the basis of the traditional mold injection process the photochemical mold manufacturing process parameters...
Baoshan Guan, Wei Jiang, Ping Liu, Li Liang, Jiang Yang
Nanoemulsion (NE) has been widely added into fracturing fluid as flowback additive to enhance fracturing fluid recovery. An environmental friendly nanoemulsion has been formulated. The particle size distribution of the nanoemulsion has been determined. The surface tension and contact angle of the nanoemulsion...
Xugang Shu, Chunli Wu, Liewen Liao, Xinhua Zhou, Xin Wu, Yulong Yin
An electrochemistry sensor composed of glass carbon electrode modified with [ZnSO4{ZnCl2(u-S-CH2CH2NH2}]n was used for the determination of mercury(II) ions with differential pulse voltammetry(DPV) in 0.1mol/L KCl solutions. The proposed electrochemistry sensor had good operating characteristics towards...
Hengchun Zhang, Xixian Ji, Xiaoqing Zheng, Kaibo Zou, Changwen Zhang
As a new kind of environmental protection building material, premixed wet mortar possesses a wide application prospect. The technical difficulty is to maintain the workability of premixed wet mortar as long as construction required setting time by choosing suitable raw materials and mix proportion. In...
Lei Jin, Yongdong Luo, Li Zhang, Shanshan Zhang, Yongming Luo
From Cinnamomum camphora, ten compounds were isolated and identified as 4-hydroxysesamin (1), 3,3 -dihydroxy-4,4 -dimethoxytetrahydrofuran lignanoid (2), 3, 4- methylenedioxyphenyl-3 ,9-dihydroxy-4 -methoxy- tetrahydrofuran lignanoid (3), lyoniresinol (4) , (+)-3 -(3, 4 – methylenedioxyphenyl)- 1,2-...
Weixue Hu, Qingmin Chen, Xueping Yan
Continuous roll forming is a new sheet metal forming process for three-dimensional surface parts. In the process, the sheet metal is thinned non-uniformly in transverse direction by controlling the distribution of the gap between the upper and lower forming rolls, the longitudinal elongation is different,...
Xueyan Chen, Jihong Wang, Ling Gong
To research the results of criterion-meeting assessment method used for the operation test in fundamentals of nursing.101 nursing undergraduates who entered Nursing College, Beihua Univercity in 2011, who were randomly divided into experimental group and control group. The students in the control group...
Xueyan Chen, Ling Gong, Liping Pan
Purpose In order to help the aged acute myocardial infarction (AMI) patients to take an active part in disease assessment, monitoring, treatment and improve the compliance, the AMI patients can relieve their somatic symptoms effectively, and at meanwhile, the incidence of complications can also be reduced.Method...
Xinzhong Deng, Yaowu Wang, Jianping Peng, Yuezhong Di
The nanograde particles of magnesium hydroxide [Mg(OH)2] with lamella morphology were synthesized by the method of electrodeposition. The effects of operation parameters, such as Mg2+ concentration and electric current density, interpolar distance and Na+ concentration on current efficiency of synthesis...
Qingkun Wang, Shaoping Pu
Miriplatin, a novel lipophilic platinum complex has been developed to treat hepatocellular carcinoma. An improvd synthetic route was designed and used to prepare the target compound. Pt(C6H14N2)I2 was reacted with CH3(CH2)12COOAg in water subsequently product was separated from AgI by dissolved in ethanol....
Bing Zhang, Zhongqing Cheng, Liang Zhang
Based on analyzing the mechanism of coupled heat and moisture transfer in building material, this paper takes temperature and moisture potential as driving force. We constructed the model of coupled heat and moisture transfer in building material, solved this model and got the analytical solutions for...
Peidong Xu, Xiaolan Zheng, Wen Tang, Qiujie Li, Weihuai Wu, Jingen Xi, Yanqiong Liang, Jinlong Zheng, Rui Li, Chicheng Zhang, Kexian Yi, Chunping He, Xiaobo Zhang
Biological phenotypes of mutant strain 1681 that was the pathogenicity-reduced strain in Colletotrichum gloeosporioides of Stylosanthes guianensia were analyzed by testing growth rate, colonial morphologies and sporulation ability. TAIL-PCR was used to identify the T-DNA integration site and the genes...
Hongmei Wu, Feng Xu, Junjie Hao, Ye Yang, Xiangpei Wang
Previous studies have found that banana flowers, leaves, pseudostems, roots, infructescence stalks, and peels (M. paradisiacal (Linn.)) have antihyperglycemic effect. The banana peel (Musa nana Lour.) might have the antihyperglycemic activity, its antihyperglycemic activity and active ingredients remain...
Pei Yao, Shubai Li, Yuan Liu, Qimeng Zhang
The Objective of this paper is to establish a method for determination of six synthetic colorants (sunset yellow, tartrazine, amaranth, carmine, allura red, brilliant blue)in pickles and sauerkrauts. The samples were adsorbed by polyamide then desorbed by aqueous alkali. After purified and extracted,...
Shuxiang Sun, Shubai Li, Pei Yao
In this study, The aim is to establish the determination method for six preservatives of Benzoic acid, Sorbic acid and four para-hydroxybenzoic acid esters (methyl p-hydroxybenzoate, ethyl p-hydroxybenzoate, propyl p-hydroxybenzoate, butyl p-hydroxybenzoate) in beverage by high performance liquid chromatography(HPLC)...
Jie Yang
Strength of cement stabilized macadam which added early strength agent improves quickly. This shortens the construction period of road maintenance. This study explores the difference of fatigue performance between the cement stabilized macadam which added early strength agent and the ordinary cement...
Zhongshu Yang, Hongbo Zhang
In this paper, a numerical method for solving a class of fractional partial differential equations with variable coefficients based on Chebyshev polynomials is proposed. The fractional derivative is described in the Caputo sense. The properties of Chebyshev polynomials are used to reduce the initial...
Kun Wang, Ai Ping Jin, Jun Jun Peng
Molybdenum doped vanadium oxide (Mo doped V2O5) xerogel films are prepared by cathodic electrodeposition on indium tin oxide substrate from Mo doped V2O5 sol. As an anodic and cathodic coloration electrochromic material, the electrodeposited Mo doped V2O5 film presents multi-electrochromic behavior (orange–yellow–green–blue)...
Yali Liu, Deshuai Sun, Tingting Qin, Zhongyi Zhang
Inhalable particles are harmful to public health and cause serious environmental problems. In this paper, surfactant sprays and gas jet were introduced into the agglomeration chamber to encourage the agglomeration of inhalable particles. The coupling effect of double gas jet and surfactant spray could...
Tingting Qin, Deshuai Sun, Yali Liu, Long Fang
Inhalable particles from coal-fired plant were an important atmosphere pollutants. The removal technology has been investigated widely. A computational fluid dynamics model, coupled with population balance model (CFD-PBM), could be used to predict the particles agglomeration in turbulent flow. The calculation...
Ting Zhou
Influence of hydroxymethylated reaction in different conditions on complexing capacity of sodium lignosulfonate (SL) with Cu( ), Zn( ) and Mg( ) was investigated. By single factor experiment, the optimal reaction conditions were as follows: dosage of formaldehyde was 0.22 g (g SL)-1, temperature was...
Yue Liang, Yanping Xin
West Oil Product pipeline always take batch transportation, conveying three different qualities of oil product. Crude oil pipeline takes a task of oil transportation from three oilfields in Xinjiang. In accordance with the principles of higher prices for better quality of crude oil, it takes batch transportation...
Ying Fu, Deshuai Sun, Xin Liu, Xingjie An, Xiaodong Zhang
The curing processes of epoxy resin cured with curing agents containing aromatic ring were analyzed quantitatively with FT-IR. The internal standard and baseline correction were used to decrease the analysis error. Due to the existence of aromatic ring in curing agent, the effects of curing agent dosage...
Yuxiang Zhu, Zhengzhou Wang
Phosphorus and boron containing polyethylene glycol esters (PB-PEG) toughening agent was synthesized by the esterification of phosphorus pentaoxide (P2O5), boric acid and polyethylene glycol (PEG). Phenolic foams toughened with PB-PEG were prepared. It is found that the flexural and compression strength...
Kuan-Jun Zhu, Jia-Jun Si, Hai-Jun Niu, Jun Zhang, Sheng-Chun Liu, Bao-Dong Sun, Feng Zhang
±1100kV Ultra-high Voltage DC Engineering will adopt JL1X/G2A-1520/125-481 large-section aluminum twisted line of steel core, 1520 mm2 large-section aluminum twisted line of steel core is of four-layer structure and has the same aluminum strand layers of 900 mm2 and 1000 mm2 large-section aluminum twisted...
Weilu Zhang, Yajie Kong, Zhimin Qi, Dong Zhang, Jie Ren, Xiangji Jiang, Xuemei Zhou, Huaidong Jin
The ordinary poly(ethylene vinyl acetate) (EVA) resin can’t meet the requirements of encapsulating photovoltaic (PV) modules, so the service life of them has not been prolonged for 25 years. The chemical modifications of EVA were studied in this paper to improve the properties of PV encapsulants. It...
Shichao Xu, Zhendong Zhao, Bingcheng Hu
Disulphide derivatised mesoporphyrin (DSDMP) and its cobalt complex Co(II)DSDMP were conveniently synthesized and successfully immobilized onto gold surface by monolayer self-assembly of disulfide. The modified electrode was characterized by Infrared Spectrometer (IR) and X-ray photoelectron spectroscopy...
Shaokui Zeng, Wenlong Wu, Chaohua Zhang, Juanjuan Yin, Zhenlin Li
Collagen hydrolysate of S and C were prepared by enzymatic hydrolysis decalcified tilapia scale and pepsin-solubilised collagen extracted from decalcified tilapia scale. The antioxidative activity of C and S were evaluated by their effects on scavenging ability of superoxide anion O2- radicals, 1,1-diphenyl-2-picrylhydrazyl...
Lihui Zhao, Deming Han, Xiuping Sun
The infrared spectra of serum from cancer patients can be measured using Fourier Transform Infrared Spectroscopy (FTIR). The changes of infrared absorption peak position in phosphor diester groups from cancer cells using OriginPro8.1 software indicates that nucleic acids contents in the cancer serum...
Heping Yan, Jianguang Shi, Gaozhang Gou, Jucheng Zhang, Dushu Huang, Shijuan Xu, Xuebin Chen, Xuequan Wang, Yong Hong, Wei Liu
4-(4'-quinazolin-ylamino) phenyl-4-(N,N- dimethylamino) phenyl propenyl ketone with total yield of 68.0% was synthesized with 2-aminobenzonitrile and N,N-dimethylformamide dimethyl acetal as a starting material, the synthesis of N-(2-cyanophenyl)-N,N-dimethyl formami- dine, and then amino acetophenone...
Yan Cui, Wen Lv
In this paper, using high performance liquid chromatography HPLC , trans resveratrol and trans piceid contents in different style wines (red,white,fresh,aged) from three typical grape regions in China(Hebei Huailai, Ningxia Qingtongxia,Xinjiang Changji) were determined. The role of grape varieties, grape...
Wei Gao, Ruzhen Yan
This paper develops a fuzzy clustering method based on the fuzzy t-norm, and uses the data of China securities market to analyze the factors influencing the portfolio selection. Furthermore, this paper estimates an investment portfolio based on fuzzy clustering. The results show that the investor can...
Hongxia Dai
the functional film is the development and application of nanotechnology, along with the development of computer, semiconductor, solar energy and other industries, a related functional materials -- transparent conductive oxide thin films produced, developed, researching on ZnO: Al ZnO films doped with...
Zheng Han, Guozhong Hu, Hongji Tian, Songyan Liu, Xuemei Han, Zhongwen Lv
cerebral venous malformation (CVM) is a rare disease which often result in misdiagnosis and missed diagnosis for its non-specific symptoms. we encountered a case of cerebral venous malformation with recurrent manifestations of perennial headache in 40-year-old woman.Through studying the main image features...
Lu Guan
Using the method of complex analysis and through constructing appropriate conformal mapping, the paper has analyzed the plane elasticity problem of dynamic cracks in finite-width single-edged cracked strips, and provided an analytical solution to the crack-tip stress intensity factor. In addition, when...
Shouji Zhu, Zhendong Zhao, Shichao Xu, Juanjuan Liu, Jianxin Jiang
Organic diamines and their derivatives are important compounds in organic chemistry, which are useful and applicable in many fields. Among them, organic diamines have two NH2 groups, which can be enabled to react with aldehyde, acyl chloride and anhydride to give out schiff base, amide and amic acid,...
Dong Li, Jie Zou, Yue Yuan, Jianjun Guo, Wen Xu, Qin Yuan, Longling Chen
The ultrasonic-microwave synergistic extraction process parameter of Tengjiao (Zanthoxylum schinifolium) oil, such as time, temperature, ratio of solid to liquid, microwave power and ultrasonic power, have been studied by orthogonal experiments. The results indicate that, using colza oil as the extraction...
Yongning Bian, Li Yu, Jing Ren
The drag reduction effects of a non-Newtonian fluid (CMC aqueous solution with 50-1000wppm) in a sinusoidal wavy-walled tube were investigated experimentally in the Reynolds numbers range from 25 to 360. Based on the pressure drop method, drag reduction was measured and the maximum drag reduction achieved...
Yuexian Liu, Nanzhe Zhang
Chemical engineering calculation is the basis of chemical engineering science and a required course for students of chemical engineering specialty. In chemical engineering calculation, the division and determination of the balance system are an important link. Taking the material balance as an example,...
Liping Wang, Shuihua Zhang, Xiaolin Xu
Synthesis of polycarbonate diols from diphenyl carbonate and 1,4-butyl diol has been demonstrated in the presence of metal acetate catalysts. Alkali metal acetate and alkaline earth metal acetate catalysts showed much higher catalytic activity, of them, lithium acetate was the most active. And the catalytic...
Xian Cheng, Liangwu Bi, Zhendong Zhao, Yuxiang Chen
This review gives a summary about the application of enzyme assisted extraction in natural products, especially, the mechanism of enzyme assisted extraction and its further improvement. The target of this review is to find the potential value of biotechnology for industrial application.
Shaodong Zeng, Tongyu Xu, Mingyue Wang, Chunliang Yang
A method for the determination of acrylamide in roasted coffee by UPLC-MS/MS was established. Acrylamide was extracted with water, and clean up on a HLB and MCX SPE cartridge, separated on a C18 column using acetonitrile-0.1% formic acid as mobile phase, and then detected under multiple reaction monitoring...
Jun Cao, Jing Li, Yu Zhou, Chaorong Li
The photocatalysts of S-doped K2Ta2O6 have been successfully synthesized by hydrothermal method. Effects of S doping to the K2Ta2O6 on the structure and photocatalytic performance are systematically investigated. The S was successfully introduced into the lattice sites of Ta5+ at the state of S6+. The...
Yu Zhou, Jun Cao, Jing Li, Chaorong Li
The individual ZnO nanowire was prepared through thermal evaporation of ZnO powder. A new test platform which contained the micromanipulator nanoprobe system installed in the scanning electron microscopy (SEM) chamber was introduced for the test of the mechanical properties of individual ZnO nanowire....
Jing Li, Xiufang Zhang, Song Wang, Chaorong Li
We report a simple and effective route to fabricate ultrathin curved In2S3 nanoflakes-functionalized natural cotton cellulose nanofibers by combining electrospinning and hydrothermal growth technique. Cotton cellulose nanofibers(CCNFs) were obtained by electrospinning technique. Curved and interconnected...
Xiumei Shi, Jianwu Cao, Zhipeng Li, Dongming Yan
Effect of the addition of carbon on the sintering properties of pressureless sintered boron carbide ceramics was investigated by using carbon black and phenolic resins as the main additives. There were three ways for adding Carbon, carbon black adding, phenolic resins adding and adding carbon black and...
Tingting Li, Ziqiang Gong, Haiying Dong, Xiaoyun Li
Nanoscale hydroxyapatite (HA) is an optimal candidate biomaterial for bone tissue engineering because of its excellent bioactive and osteoconductive properties. Here we have been successfully synthesized the faceted hexagonal hydroxyapatite nanotubes by one-step hydrothermal method. The obtained product...
Jiangang Yi, Qianpeng Han
Due to the influence of the working environment, there is always unbalance fault in rotating machinery which is difficult to detect by sensors. In order to solve this problem, the unbalanced rotor model is established by using modal analysis theory in this paper. The first six mode shapes of the simulated...
Shasha Wang, Meifang Yan, Haihua Li, Lihui Zhang, Zhenfa Liu
Phloroglucinol–resorcinol–formaldehyde (PRF) carbon aerogels were synthesized using Na2CO3 as the catalyst. Acidizing process was introduced to the sol–gel reactions system. The results show that the acidizing process of trifluoroacetic acid acetone solution can decrease the shrinkage factor of carbon...
Xiaojie Yan, Sheng Huang, Fenglai Lu, Zhixin Gu, Lei Wang, Yonglin Huang, Dianpeng Li
Objective To study the technological parameters of the purification process of phenols from Callicarpa nudiflora (C. nudiflora) with HP-20 macroporous resin. Methods The kinetic adsorption and desorption experiments were carried out on HP-20 macroporous resin (HP-20) to optimize the separation process...
Xiao Fang Zhao, Ya Hong Li, Hao Yuan
The antibacterial activity of the five dimeric quaternary ammonium amphiphiles against Escherichia coli were evaluated by determining the minimum inhibitory concentration (MIC) and compared with one monomeric quaternary ammonium amphiphile. The antibacterial activity of dimeric amphiphiles is superior...
Denghao Min, Yuxiang Chen, Zhaosheng Cai, Zhendong Zhao, Haibo Zhang
Turpentine oil is one of the most important nature essential oil of the world and it is particularly rich in China. -pinene is one of the principle components of turpentine oil. Turpentine has a high application value, but more applications are prepared terpene resin by polymerization. This paper reviewed...
Zhigang Qin, Yanmao Xia
Weft knitted fabrics and their reinforced composites have good extensibility, high production efficiency, good formability, impact resistance and low production costs.The two kinds of weft knitted float stitch fabrics are made of glass continuous filament yarns, and were knitted on computerized flat...
Jun Liu, Dong Li
Eight Capsicum annuum were studied for genetic diversity using ISSR markers. After screen of 30 ISSR primers, 21 pairs could amplify clear bands. And 382 bands were amplified by using above 21 pair of primers, of which 270 bands (70.6%) presented polymorphism. According to Nei and Li, the genetic similarity...
Xiaomin Yuan, Zhendong Zhao, Shichao Xu, Yuxiang Chen, Liangwu Bi
(-)-Dibornyl oxalate was synthesized by the reaction of natural (-)-borneol with oxalyl chloride under the optimized reaction conditions: temperature 35 , time 1 h and the molar ratio of (-)-borneol and oxalyl chloride 1.0 : 0.6. The reaction underwent in good selectivity as 99 % for target product which...
Changqing Guo, Changfeng Yan, Xiaoyong Zhao
Thermoelectric generators(TEG) is considered as a promising technology for utilizing low-grade thermal energy, while the cooling system plays a key role in TEG. A two-dimensional numerical model of jet impinging jet cooling is developed based on the commercial code FLUENT. The influences of several factors...
Chunyan Wang, Xiaoqiu Liu, Xiuhua Wu
Carbon nanofibers (CNFs) was synthesized by simple electrospinning, followed by thermal treatment over a carbonization temperature of 900 °C. The morphology and microstructure of CNFs were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results indicate...
Xiaoqing Yi, Shichao Xu, Zhendong Zhao
This paper provides an elaborate summary and review on the development and progress in the preparation and application of p-menthane-1,8-diol monohydrate.
Xuan-Yun Huang, Dong-Mei Huang, You-Qiong Cai
Nitrofurazone residues in fishery products were dangerous for human health , semicarbazide (SEM) was the nitrofurazone metabolite could residues in fishery in a long time . To detect SEM residues in fishery products rapidly by immune method, preparation of high quality polyclonal antibody against SEM...
Liang-Liang Tian, Dong-Mei Huang, Yong-Fu Shi, Feng Han, Peng Zhou
A method for the determination of flavomycin in shrimp by high performance liquid chromatography was established. Flavomycin in sample was extracted by methanol solution and defatted with n-hexane. The lower was cleaned through the membrane and determined by HPLC. The calibration curve was linear. The...
Yubing Zha, Yueping Su, Chunliang G, Yingqiang Huang, Xiaofang Wang, Ling Lin, Shaodong Zeng
A method was developed for the simultaneous determination of Afiatoxin ( AFB1 AFB2 AFG1 AFG2) in chrysanthemum is developed by Liquid chromatograPhy with fluoreseence detection after immunoaffinity column clean up and Pre cloumn derivatization.four south medicine samples were extracted with methanol...
Shaoxuan Zhang, Yarong Li, Tiantian Wang, Guangzhu Lin, Bochuan Wang
To provide scientific data of the internal transcribed spacer (ITS) and trnL-F sequences for the authentication of Potentilla discolor Bge., we extracted the genome DNA from the leaves of Potentilla discolor Bge., purchased from Hebei Province, amplified the ITS region using ITS universal primers of...
Yiping Chen, Chen Chen, Zhenyi Liang, Bo Wang, Pinghuai Liu
Ginsenoside Re is employed as the reference substance for the determination of contents, elution rate of the total saponins from Sindora glabra seeds is as the evaluation index, the optimum extraction technology derives from the L9 (34) orthogonal experiments designed for purpose of the maximum extraction...
Wei Qu, Yihanna Hu, Shuang Liu, Chengying Zhou
A method was proposed for the determination of copper, iron, nickel, cobalt, gold and silver in industrial wastewater by ICP-AES. Working conditions of the instrument and selection of analytical spectral lines were tested and optimized. The detection limit was 0.002,0.003,0.002,0.008,0.008,0.002mg/L....
Yuanyuan Shao, Xuri Huang
Shale gas reservoirs have been proposed as feasible choices of location for injection of CO2 because this method could enhance recovery of natural gas resources, while at the same time sequester CO2 underground. In this paper, a fully coupled multi-continuum multi-component simulator which incorporates...
Xiaojie Yan, Jinlei Liu, Ziming Yang, Yueyuan Chen, Dianpeng Li, Weibin Liang
Walnut peptides were obtained through special enzyme or hydrolytic enzyme enzymolysis with walnut residue as raw materials and degree of hydrolysis as index. The results showed that special enzyme was the optimum proteinase. The optimum hydrolytic conditions were as followed: the optimal enzymatic hydrolysis...
Zhaolong Huang, Shaoping Feng, Ying Feng, Mengshu Lai, Yan Jiang, Ruiming Xiao, Lida Sun
The phosphorus content, molar radio of calcium and phosphorus and the effects of magnesium on calcium content in chicken bones were studied, comparing with different three groups which was fed with magnesium salt. The result showed that calcium content and phosphorus content of experimental groups have...
Heyuan Huang, Meiying Zhao, Yonghui Dai, Yonghui Wang
This paper focuses on the issues of the fibre-reinforced composite material microstructure and presents a new numerical method to generate random fibre distributions and predict the macroscopic mechanical properties of composite materials based on the represent volume element (RVE). The method, named...
Xin Qu, Hongye Zhao, Dan Wu, Lianbo Zhao, Kui Lu, Yuou Teng
Three 3-substituted derivatives of quercetin were synthesized in 10-80% overall yields. Their structures were characterized by 1HNMR. Three target compounds (4a~4c) have not been reported before. The results showed that: pre-treated of PC-12 cells with, cell survival rate was higher than that of quercetin....