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Search Results: 1 - 10 of 53653 matches for " CUI CONG-WU "
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A METHOD FOR CHARACTERIZING THE KINETICS OF PHOTOPOLYMERIZATION IN EXTERNAL ELECTICAL FIELD
外电场下光聚合反应动力学的表征方法

LI Cong-wu,PAN Aug,
李从武
,潘昂

高分子学报 , 1994,
Abstract: n- situ photopolymerizahon of oriented liquid crystals (LC ) is an importantmethod of preparing high quality polymeric LC films for new optical devices. Thisarticle develops a method for characteriaing the kinetics of photopolymerizahon inelectrical fields using poled electrical current and electrical resistance which arise inthe reaction process. It provides with a simple and effective mean.
STUDY OF TRANSMISSION GRATING DIFFRACTION EFFICIENCIES FOR SOFT X-RAYS
透射光栅对软X射线衍射效率的研究

YANG JIA-MIN,YI RONG-QING,CHEN ZHENG-LIN,SUN KE-XU,DING YAO-NAN,ZHENG ZHI-JIAN,LI CHAO-GUANG,CUI MING-QI,ZHU PEI-PING,CUI CONG-WU,
杨家敏
,易荣清,陈正林,孙可煦,丁耀南,郑志坚,李朝光,崔明启,朱佩平,崔聪悟

物理学报 , 1998,
Abstract: 在北京同步辐射源上,对无底衬透射光栅在844eV X射线能量点的绝对衍射效率进行了实验标定,利用光栅模型,得到了光栅所有结构参数,并由此得到了透射光栅对100—2000eV能区软X射线的各级绝对衍射效率理论计算曲线.
CALIBRASION OF THE ENERGY RESPONSE FOR THE SOFT X-RAY DETECTIONS ELEMENTS WITH THE BEIJING- SYNCHROTRON RADIATION FACILITY
同步辐射软X射线源用于软X射线探测元件定标

SUN KE-XU,YI RONG-QING,YANG JIA-MIN,WANG HONG-BIN,MA HONG-LIANG,CHEN ZHENG-LIN,HUANG TIAN-XUAN,CUI YAN-LI,ZHENG ZHI-JIAN,TANG DAO-YUAN,DING YONG-KUN,WEN SHU-HUAI,JIANG WEN-MIAN,ZHAO YONG-KUAN,CUI MING-QI,LI GANG,CUI CONG-WU,TANG E-SHENG,
孙可煦
,易荣清,杨家敏,王红斌,马洪良,陈正林,黄天暄,崔延莉,郑志坚,唐道源,丁永坤,温树槐,江文勉,赵永宽,崔明启,黎刚,崔聪悟,唐鄂生

物理学报 , 1997,
Abstract: 用于惯性约束聚变诊断的软X射线探测元器件的能量响应曲线定标,利用北京同步辐射装置(BSRF-3B1束线,束流为20—80mA,光子能量为250—1000eV,通量约为1012photon/s·mm2·mr2·0.1%band width)及反射率计靶室,采用AXUV-100硅光二极管作源强绝对监测.对X射线二极管(XRD)及金刚石光电导探测器等五种探测元件进行能量响应曲线定标,获得初步实验结果,并对数据进行了分析
Effect of Quinoid Mediators on the Decolorization of Azo Dyes by the Strain CD-2  [PDF]
Da Shen, Dongjin Leng, Cong Li, Congrong Wu, Daizong Cui
Advances in Chemical Engineering and Science (ACES) , 2016, DOI: 10.4236/aces.2016.64034
Abstract: In the present study, the effects of various quinone compounds on the decolorization rates of azo dyes by the E. coli strain CD-2 were investigated. The results showed that Lawsone was the most effective redox mediator. The optimum concentration for Lawsone is 0.1 mmol/L. The effects of physic-chemical parameters on the Methyl Orange degradation by the strain were determined. The results indicated that, in the quinone mediated decolorization system, strain CD-2 exhibited a good degradation ability in the range of pH from 4 to 9, temperature from 20°C to 50°C and salinity from 1% to 6%. With Lawsone as a redox mediator, a broad spectrum of azo dyes with different structures could be decolorized by the strain. All the results showed that the addition of a redox mediator can be valuable for treating dye-colored wastewaters.
Factors Affecting the Reductive Properties of the Core-Shell SiO2-Coated Iron Nanoparticles  [PDF]
Congrong Wu, Cong Li, Dongjin Leng, Daizong Cui
Advances in Chemical Engineering and Science (ACES) , 2016, DOI: 10.4236/aces.2016.64032
Abstract: In this study, novel core-shell SiO2-coated iron nanoparticles (SiO2-nZVI) were synthesized using a one-step Stoeber method. The Malachite green degradation abilities of the nanoparticles were investigated. The effects of ethanol/distilled water volume ratio, presence and absence of PEG, tetraethyl orthosilicate (TEOS) dosage, and hydrolysis time used in the nanoparticles preparation process were investigated. The results indicated that the SiO2-coated iron nanoparticles had the highest reduction activity when the particles synthesized with ethanol/H2O ratio of 2:1, PEG of 0.15 ml, TEOS of 0.5 ml and the reaction time was 4 h. The SiO2-nZVI nanoparticles were characterized using Transmission Electron Microscopy (TEM), Energy Dispersive Spectrometry (EDS) and powder X-Ray Diffraction (XRD). The results showed that the average particles diameter of the SiO2-nZVI was 20 - 30 nm. The thickness of the outside SiO2 film is consistent and approximately 10 nm. The results indicated that the nanoparticles coated completely with a transparent SiO2-film. Such nanoparticles could have wide applications in dye decolorization.
1-(Benzylideneamino)pyridinum iodide
Yong-Tao Cui,Jian-Qiang Wang,Chun-Xiang Ji,Cong-Ren Wu
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536808043717
Abstract: In the title compound, C12H11N2+·I , the aromatic rings are oriented at a dihedral angle of 73.40 (3)°. In the crystal structure, π–π contacts between the pyridine rings and the benzene and pyridine rings [centroid–centroid distances = 3.548 (3) and 4.211 (3) ] may stabilize the structure.
Study on Digitization of TCM Diagnosis Applied Extraction Method of Blood Vessel  [PDF]
Cong Wu, Koichi Harada
Journal of Signal and Information Processing (JSIP) , 2011, DOI: 10.4236/jsip.2011.24043
Abstract: This paper presents a study on digitization of Traditional Chinese Medicine diagnosis. The research consists of two aspects: a) algorithms for blood vessels extraction in sclera-conjunctiva images, which can be applied in syndrome differentiation by observing human eyes (named Ocular Diagnostic in Traditional Chinese Medicine); b) digitization of extracted vessels. First, sclera-conjunctiva region is isolated by optimal threshold segmentation and mathematical operation; Scanning and edge detection methods are used to gain the edge of the blood vessels. Moreover, the edge feature parameters are gained, which can be used to reconstruct the blood vessels. Experimental results show that blood vessels information can be obtained fast and accurately for the further TCM diagnosis by artificial system.
Development and Evaluation of a DAS-ELISA for Rapid Detection of Tembusu Virus Using Monoclonal Antibodies against the Envelope Protein
Hao Chen, Quanbin Ou, Yi Tang, Xuhui Gao, Lili Wu, Cong Xue, Chunmei Yu, Jingteng Cui, Youxiang Diao
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0096366
Abstract: Since April 2010, Tembusu virus (TMUV) which is a contagious pathogen of waterfowls, causing symptoms of high fever, loss of appetite and fall in egg production, has been reported in east of China. A double antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) which detects for TMUV was developed, using two monoclonal antibodies (mAbs) against the TMUV envelope (E) protein. BALB/c mice were immunized with purified recombinant E protein expressed in E. coli. Three hybridoma cell lines designated as 12B1, 10C6 and 2D2, were screened by cell fusion and indirect ELISA for their ability to recognize different linear epitopes on the E protein, and were characterized subsequently. High-affinity mAbs 12B1 and 2D2 were used as capture and detection antibodies, respectively. The reaction conditions for the DAS-ELISA were optimized for TMUV detection. The cross-reactivity of the DAS-ELISA was determined using TMUV, duck plague virus, avian influenza virus subtype H9, Newcastle disease virus, duck hepatitis A virus type 1 and duck reovirus samples. A total of 191 homogenized tissues of field samples were simultaneously detected by DAS-ELISA and by RT-PCR. The former was found to have a high specificity of 99.1% and a sensitivity of 93.1%. These results reveal a positive coincidence between DAS-ELISA and RT-PCR at a coincidence rate of 95.8%. The method developed in this study can be used for the diagnosis of TMUV infection of duck origin.
Activation of the Dormant Secondary Metabolite Production by Introducing Gentamicin-Resistance in a Marine-Derived Penicillium purpurogenum G59
Yun-Jing Chai,Cheng-Bin Cui,Chang-Wei Li,Chang-Jing Wu,Cong-Kui Tian,Wei Hua
Marine Drugs , 2012, DOI: 10.3390/md10030559
Abstract: A new approach to activate silent gene clusters for dormant secondary metabolite production has been developed by introducing gentamicin-resistance to an originally inactive, marine-derived fungal strain Penicillium purpurogenum G59. Upon treatment of the G59 spores with a high concentration of gentamicin in aqueous DMSO, a total of 181 mutants were obtained by single colony isolation. In contrast to the strain G59, the EtOAc extracts of nine mutant cultures showed inhibitory effects on K562 cells, indicating that the nine mutants had acquired capability to produce antitumor metabolites. This was evidenced by TLC and HPLC analysis of EtOAc extracts of G59 and the nine mutants. Further isolation and characterization demonstrated that four antitumor secondary metabolites, janthinone ( 1), fructigenine A ( 2), aspterric acid methyl ester ( 3) and citrinin ( 4), were newly produced by mutant 5-1-4 compared to the parent strain G59, and which were also not found in the secondary metabolites of other Penicillium purpurogenum strains. However, Compounds 1– 4 inhibited the proliferation of K562 cells with inhibition rates of 34.6% ( 1), 60.8% ( 2), 31.7% ( 3) and 67.1% ( 4) at 100 μg/mL, respectively. The present study demonstrated the effectiveness of a simple, yet practical approach to activate the production of dormant fungal secondary metabolites by introducing acquired resistance to aminoglycoside antibiotics, which could be applied to the studies for eliciting dormant metabolic potential of fungi to obtain cryptic secondary metabolites.
Performances of ZnO-Based Dye Sensitized Solar Cells Fabricated by Hydrothermal Synthesis and Sol-Gel Technique

ZHU Li,FAN Yu-Qing,ZHAO Mao-Cong,WU Min,ZHANG Jia-Yu,XU Chun-Xiang,CUI Yi-Ping,

中国物理快报 , 2009,
Abstract: ZnO is introduced as an alternative to TiO2 in dye sensitized solar cells (DSSCs) due to its band gap similar to TiO2, higher electron mobility, and flexible procedures of preparations. Several samples of ZnO films are prepared with the hydrothermal synthesis method and the sol-gel technique, respectively. These ZnO films were assembled as photoanodes in DSSCs using N3 dye as the sensitizer. The ZnO-based cells prepared by the hydrothermal synthesis show typical current source characteristics, whose fill factor (FF) is 0.44 and photo-to-electric power conversion efficiency is 0.34%. On the other hand, all the samples prepared with the sol-gel technique show accompanied source characteristics with relatively higher power conversion efficiencies (1%) but a lower FF (0.26). X-ray diffraction (XRD) and atomic force microscopy (AFM) measurements indicate that the sol-gel samples have small particles sizes. Therefore, sol-gel samples could adsorb more dye molecules to generate high conversion efficiencies. At the same time, more grain boundaries make it more possible for injected electrons to recombine with the oxidized electrolyte. Hydrothermal samples have bigger grains, so they show poor conversion efficiency and relatively high FF.
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