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In Situ Synthesis of Heat Resistant Gradient Composite on Steel Surface

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Journal of Iron and Steel Research International 2009年第2期16卷 89-94页

作者： CUI Xiang-hong WANG Feng WANG Shu-qi YANG Zi-run gao ming-juan wei Min-xian School of Materials Science and Engineering Jiangsu University Zhenjiang 212013 Jiangsu China

A heat resistant gradient composite was synthesized in situ on steel with the self-propagating high temperature synthesis （SHS） reaction of 3Ni-Al-Ti-C system during casting. The phases, microstructure, and composition of the composite were analyzed by using an X-ray diffractometer （XRD）, and a scanning electron microscope （SEM） coupled with an energy-dispersive X-ray spectroscope （EDS）. The formation mechanism of the composite is also discussed. TiC/Ni3 Al/steel gradient composite is achieved by forming the gradient distributions of Fe, Ni, and Al, accompanied with the gradient variation of the microstructure from TiC/Nia A1, to TiC/Ni3 Al/steel, and to steel. The composite is in situ synthesized through whole reaction of 3Ni-Al-Ti-C system in liquid steel and densification procedure, and the liquid steel infiltrates into pores in the SHS product and forces liquid Ni3Al to form self-compaction further.

关键词： steel heat resistant composite synthesis microstructure

Tillage Effect on Organic Carbon in a Purple Paddy Soil

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Pedosphere 2006年第5期16卷 660-667页

作者： HUANG Xue-Xia gao ming wei Chao-Fu XIE De-Ti PAN Gen-Xing College of Resources and Environment Southwest Agricultural University Chongqing 400716 （China） College of Environmental Science and Technology Guangzhou University Guangzhou 510006 （China） College of Resources and Environment Nanjing Agricultural University Nanjing 210095 （China）

The distribution and storage of soil organic carbon (SOC) based on a long-term experiment with various tillage systems were studied in a paddy soil derived from purple soil in Chongqing, China. Organic carbon storage in the 0-20 and 0-40 cm soil layers under different tillage systems were in an order: ridge tillage with rice-rape rotation (RT-rr) > conventional tillage with rice only (CT-r) > ridge tillage with rice only (RT-r) > conventional tillage with rice-rape rotation (CT-rr). The RT-rr system had significantly higher levels of soil organic carbon in the 0-40 cm topsoil, while the proportion of the total remaining organic carbon in the total soil organic carbon in the 0-10 cm layer was greatest in the RT-rr system. This was the reason why the RT-rr system enhanced soil organic carbon storage. These showed that tillage system type was crucial for carbon storage. Carbon levels in soil humus and crop-yield results showed that the RT-rr system enhanced soil fertility and crop productivity. Adoption of this tillage system would be beneficial both for environmental protection and economic development.

关键词： carbon sequestration organic carbon storage purple paddy soil tillage system

Some Improvement on Hilbert's Inequality and Its Application

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Chinese Quarterly Journal of Mathematics 2005年第4期20卷 406-410页

作者： gao ming-zhe JIA wei-jian Department of Mathematics and Computer Science Normal College of Jishou University Jishou416000 China

A new improvement of Hilbert's inequality for double series can be establishedby means of a strengthened Cauchy's inequality. As application, a quite sharp result onFejer-Riesz's inequality is obtained.

关键词： Hilbert's inequality double series Fejer-Riesz's inequality uniform convergence decomposition theorem

Effect of the L-D_(1)alleles on leaf morphology,canopy structure and photosynthetic productivity in upland cotton(Gossypium hirsutum L.)

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Journal of Integrative Agriculture 2023年第1期22卷 108-119页

作者： JIANG Hui gao ming-wei CHEN Ying ZHANG Chao WANG Jia-bao CHAI Qi-chao WANG Yong-cui ZHENG Jin-xiu WANG Xiu-li ZHAO Jun-sheng Institute of Industrial Crops Shandong Academy of Agricultural SciencesJinan 250100P.R.China College of Life Sciences Shandong Normal UniversityJinan 250014P.R.China

One of the most important objectives for breeders is to develop high-yield *** increase in crop yield has met with bottlenecks after the first green revolution,and more recent efforts have been focusing on achieving high photosynthetic efficiency traits in order to enhance the *** shape is a significant agronomic trait of upland cotton that affects plant and canopy architecture,yield,and other production *** major leaf shape types,including normal,sub-okra,okra,and super-okra,with varying levels of lobe severity,are controlled by a multiple allelic series of the D-genome locus L-D_(1).To analyze the effects of L-D_(1)alleles on leaf morphology,photosynthetic related traits and yield of cotton,two sets of near isogenic lines(NILs)with different alleles were constructed in Lumianyan 22(LMY22)and Lumianyan 28(LMY28)*** analysis of morphological parameters and the results of virus-induced gene silencing(VIGS)showed that the regulation of leaf shape by L-D_(1)alleles was similar to a gene-dosage *** with the normal leaf,deeper lobes of the sub-okra leaf improved plant canopy structure by decreasing the leaf area index(LAI)and increasing the light transmittance rate(LTR),and the mid-range LAI of sub-okra leaf also guaranteed the accumulation of cotton *** the chlorophyll content(SPAD)of sub-okra leaf was lower than those of the other two leaf shapes,the net photosynthetic rate(Pn)of sub-okra leaf was higher than those of okra leaf and normal leaf at most ***,the improvements in canopy structure,as well as photosynthetic and physiological characteristics,contributed to optimizing the light environment,thereby increasing the total biomass and yield in the lines with a sub-okra leaf *** results suggest that the sub-okra leaf may have practical application in cultivating varieties,and could enhance sustainable and profitable cotton production.

关键词： photosynthesis canopy structure yield biomass sub-okra leaf shape

Development of a complex scintillation proximity assay for highthroughput screening of PPAR7 modulators

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Acta Pharmacologica Sinica 2005年第3期26卷 339-344页

作者： Bin WU Jie gao ming-wei WANG~2 The National Center for Drug Screening,Shanghai Institute of Materia Medica,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences Graduate School of Chinese Academy of Sciences,Shanghai 201203,China The National Center for Drug Screening Shanghai Institute of Materia Medica Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Graduate School of Chinese Academy of Sciences Shanghai China

Aim:To develop a complex high-throughput screening （HTS） assay based onscintillation proximity assay （SPA） technology for identification of novel peroxi-some proliferator-activated receptor gamma （PPARγ） ***:Full-length PPARγ and retinoid X receptor alpha （RXRα）,biotinylated PPAR responseelement （PPRE）,[3H]BRL49653 and streptavidin-coated FlashPlate or microbeadwere used to develop an HTS assay based on SPA ***‘ABCDE’method was validated against conventional hydroxyapatite （HA） assay and ap-plied to large-scale screening of 16 000 synthetic compounds and natural ***:（1） IC50values of positive control compounds （BRL49653 andtroglitazone） obtained from the‘ABCDE’method and HA assay were compa-rable and consistent with those reported elsewhere;（2） Approximately 178compounds,showing more than 70% competitive inhibition on BRL49653 bind-ing to PPARγ,were identified initially by the‘ABCDE’method （microbead）;（3）Secondary screening using FlashPlate and cross-reactivity studies with RARα,β,γ and RXRα,β,γ confirmed that 12 compounds possessed specific PPARγ bind-ing properties including 2 with IC50values less than 0.5 μmol/L and novel chemi-cal ***:The‘ABCDE’method using either FlashPlate ormicrobead,is a highly efficient,automatable,and robust tool to screen potentialPPARγ modulators in HTS *** application may be expanded to othernuclear receptors that form heterodimers upon activation.

关键词： peroxisome proliferator-activated receptor gamma retinoid X receptor alpha scintillation proximity assay high-throughput screening

Oxaliplatin and teniposide can inhibit the proliferation and induce the apoptosis of gastric cancer cell line BGC-823 synergistically

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The Chinese-German Journal of Clinical Oncology 2010年第3期9卷 149-152页

作者： Wang Ma ming gao wei He Qingxia Fan Department of Oncology The First Affiliated Hospital Zhengzhou University Zhengzhou 450052 China

Objective:The aim of this study was to investigate the synergistic effects of oxaliplatin and teniposide on proliferation and apoptosis of gastric cancer cell line ***:MTT assay was carried to examine the inhibition rate of oxaliplatin and teniposide on gastric cancer cell line BGC-823 with various concentrations separately and *** apoptosis rate of BGC-823 cells under the treatment of oxaliplatin or/and teniposide was examined by flow *** expression level of livin, an apoptosis-associated protein, was explored by western ***:Oxaliplatin or teniposide could remarkably inhibit the BGC-823 gastric cancer cell growth with a dose-response manner, separately and *** inhibition rate of oxaliplatin combined with teniposide on BGC-823 cells was higher than that of single oxaliplatin or single teniposide(P < 0.05), with 0.46 as combination index(CI) *** apoptosis rates of cells treated by oxaliplatin for 12 h, 24 h and 48 h were 6.13%, 13.86% and 21.48%, respectively, while which of teniposide were 4.60%, 10.72%, 17.07%.But when the two medicines were carried associatively, the apoptosis rates for 12 h, 24 h and 48 h were 11.73%, 24.14% and 44.75%, *** blot showed that the expression level of livin was more down-regulated when cells were treated by oxaliplatin + teniposide than by oxaliplatin ***:The combination of oxaliplatin and teniposide can exert a synergistic effect on gastric cancer cell BGC-823.

关键词： gastric cancer oxaliplatin teniposide apoptosis flow cytometry

扭转对称光束的产生及其变换过程中的轨道角动量传递

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物理学报 2007年第4期56卷 2184-2190页

作者：高明伟高春清林志锋北京理工大学光电工程系北京100081

研究了采用扭转柱面镜光学系统将厄米-高斯光束变换成为具有轨道角动量的拉盖尔-高斯扭转对称光束.采用本征模式分解的方法分析了扭转柱面镜光学变换系统实现光束变换的原理.利用光束传输矩阵和二阶矩理论分析计算了光束经过扭转柱面透... 详细信息

研究了采用扭转柱面镜光学系统将厄米-高斯光束变换成为具有轨道角动量的拉盖尔-高斯扭转对称光束.采用本征模式分解的方法分析了扭转柱面镜光学变换系统实现光束变换的原理.利用光束传输矩阵和二阶矩理论分析计算了光束经过扭转柱面透镜变换过程中的轨道角动量传递过程,证明光束与透镜系统的轨道角动量交换发生在第一个柱面透镜处,光束经过第一个柱面透镜后,具有的轨道角动量保持不变.

关键词：轨道角动量光束变换扭转对称光束轨道角动量传递

Reconstruction of heat flux profile on the HL-2A divertor plate with a three-dimensional analysis model

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Chinese Physics B 2013年第1期22卷 389-393页

作者：高金明李伟夏志伟潘宇东卢杰易萍刘仪 Southwestern Institute of Physics

A three-dimensional analysis model based on the finite element method （FEM） is developed, which can derive the evolution and distribution characteristics of heat flux deposited on the divertor plate from the surface temperature measured by infrared thermography diagnostics. The numerical simulations of surface heating due to localized power bursts and the power deposition calculations demonstrate that this analysis can provide accurate results and useful information about localized hot spots compared with the normal one- and two-dimensional calculations. In this paper, the details of this three- dimensional analysis are presented, and some results in ohmic heating and electron cyclotron resonant heating （ECRH） discharge on HL-2A are given.

关键词： three-dimensional analysis heat flux divertor plate

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利用振幅光栅生成拉盖尔高斯光束的实验研究

物理学报 2008年第2期57卷 860-866页

作者：李丰高春清刘义东高明伟北京理工大学信息科学技术学院光电工程系北京100081

拉盖尔高斯(Laguerre-Gaussian,LG)光束由于其独特的相位结构和轨道角动量特性在微粒旋转操纵和信息处理等方面得到了越来越多的重视.对利用振幅型叉状衍射光栅产生LG光束进行了理论分析,采用计算全息图的方法制作了振幅型叉状衍射光栅... 详细信息

拉盖尔高斯(Laguerre-Gaussian,LG)光束由于其独特的相位结构和轨道角动量特性在微粒旋转操纵和信息处理等方面得到了越来越多的重视.对利用振幅型叉状衍射光栅产生LG光束进行了理论分析,采用计算全息图的方法制作了振幅型叉状衍射光栅,实验上获得了角量子数为±1的LG光束,并对光束变换过程中影响光束特性的主要因素进行了讨论.

关键词：信息光学拉盖尔高斯光束计算全息光栅光束轨道角动量