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Thermal Insulation and Strength of Autoclaved light Concrete

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Journal of Wuhan university of Technology(Materials Science) 2011年第1期26卷 132-136页

作者：杨若冲吴智深 School of Transportation Southeast University Institute of Urban Engineering Science & Technology Southeast University

The primary objective of this study was to develop an autoclaved light concrete （AlC） material with ultra-thermal insulation property and to investigate the relationship between its physical characteristics and mechanical properties. Through tests of dry bulk density and compressive strength, relationship of physical characteristics and mechanical properties of samples were studied, resulting in a material with ultra-thermal insulation property. Scanning electron microscope （SEM） and energy-dispersive X-ray spectroscopy （EDX） were applied to analyze the micro-morphology and elemental composition of samples. To identify the product phases, X-ray diffraction （XRD） was engaged. The test results showed that compressive strength and thermal coefficient were reduced with the increasing of aluminum powder within the mixtures. As a result the optimal thermal coefficient and compressive strength of samples were improved to 0.061.W/（m·k） and 1.2 MPa, respectively. SEM, EDX and XRD analyses showed that calcium silicate hydrate and tobermorite crystal were main resultant phases.

关键词： autoclaved light concrete ultra-thermal insulation microscopic appearance and phase analysis tobermorite crystal

The Study on the Interaction between Tm3+ and Tb3+ Rare Earth Ions in YVO4 Crystal

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Chinese Journal of lasers 2001年第6期10卷 51-55页

作者： HUANG lilei 1.hong Zhi 2.ZHUANG Jian 3 ( 1.ptoelectronic Division, China Institute of Metrology, Hangzhou 31.034, China 2.tate Key laboratory of Modern Optical Instrumentation, Zhejiang {1., Hangzhou 31.02., China 3Fujian Optoelectron. Div. China Inst. of Metrology Hangzhou 310034 China

In this paper the measurement result of transmission spectrum of Tb,Tm∶YVO 4 is presented. The intensity Ω t, the probabilities of radiating transition, non-radiating transition, the cross-relaxation and the lifetimes of Tm 3+ ions at 3H 4 and 3F 4 levels are calculated. The results show that when the concentration of Tm 3+ ions >1.2 at.-%, the fluorescent lifetime of upper level 3H 4 is shorter than that of lower level 3F 4 due to the interaction between Tm 3+ and Tb 3+ ions, thus the lasing self-termination at ～1.5 μm can be eliminated.

关键词： Tb Tm∶YVO 4 crystal interaction between ions lasing self-termination

用GC/MS研究含α-活泼氢芳烃与硝基苯的反应

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燃料化学学报 2004年第1期32卷 104-108页

作者：袁新华徐红星倪中海张丽芳魏贤勇江苏大学材料学院江苏镇江212013 中国矿业大学化学化工学院江苏徐州221008

在常温常压下,研究了苊、蒽、萘、芴、1.甲基萘(1.MN)、2.6 二甲基萘(2.6 DMN)、苯酚、α 萘酚与PhNO2.硝基苯)在lewis酸AlCl3催化作用下的反应。结果发现,蒽、萘和苯酚与PhNO2.反应,苊、芴、1.MN、2.6 DMN和α 萘酚与PhNO2.能反应生... 详细信息

在常温常压下,研究了苊、蒽、萘、芴、1.甲基萘(1.MN)、2.6 二甲基萘(2.6 DMN)、苯酚、α 萘酚与PhNO2.硝基苯)在lewis酸AlCl3催化作用下的反应。结果发现,蒽、萘和苯酚与PhNO2.反应,苊、芴、1.MN、2.6 DMN和α 萘酚与PhNO2.能反应生成相应的苯胺基芳烃。GC/MS分析表明反应活性顺序为苊>1.MN>2.6 DMN>芴,根据超共轭效应可以合理解释含α 活泼氢芳烃反应活性顺序。控制AlCl3与苊的摩尔比值为1.2和2.4左右,重结晶苊与PhNO2.反应产物分别得到联苊和5 苯胺基苊纯品,利用GC、GC/MS、FTIR和UV等分析测试手段对其进行了结构鉴定。

关键词： lewis酸苊硝基苯芳烃

Changing Tendency Analysis of Chinese Normal Male's Semen Quality in Recent 2. Years:Samples from Chinese Documents

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Journal of Reproduction and Contraception 2010年第4期21卷 229-241页

作者： li-ping HUANG Ya-fei lI hong-yan XIONG Jia CAO Department of Epidemiology College of Preventive Medicine Third Military Medical University Chongqing 400038 China Chongqing Shapingba Center for Disease Control and Prevention Chongqing 400038 China College of Preventive Medicine Third Military Medical University Chongqing 400038 China

Objective To analyze the trend of change in semen quality of Chinese healthy men over recent 2. years. Methods A total of 1.5 reports were collected on quality inspection of semen of healthy Chinese men between 1.85-2.09 through literature search, which involved 2. 1.6 persons from 69 counties and cities. Trend of change in semen parameters was analyzed by linear regression model and rank sum test. Results Sperm concentration and non-progressive motility （c%） declined, and the linear equation was of statistics value. linear equations include y=2.968-0. 004x （P〈0.05） and y=3.2.4-0.02.x （P〈0.05）. As the results of K-S rank sum test showed, the difference of sperm concentration and total sperm count in the three groups, i.e., the group for 1.85-1.89, the group for 1.90-1.99 and the group for 2.00-2.09 was of statistics value. Conclusion The semen concentration decline over recent 2. years （P〈0.05）. of healthy Chinese men appears a possible

关键词： semen parameter healthy men regression analysis

Clustering of Web learners Based on Rough Set

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Clustering of Web Learners Based on Rough Set

Research of Web Documents Clustering Based on Dynamic Concept

The First Conference on Web Information System and Applications(WISA 2.04)

作者： □ lIU Shuai-dong~1., CHEN Shi-hong~({1.+) 1. School of Computer, Wuhan university, Wuhan 430072. Huhei, China 2. National Engineering Research Center for Multimedia Software, Wuhan university, Wuhan 430072. Hubei, China

The demand for individualized teaching from Elearning websites is rapidly increasing due to the huge differences existed among Web learners. A method for clustering Web learners based on rough set is proposed. The basic idea of the method is to reduce the learning attributes prior to clustering, and therefore the clustering of Web learners is carried out in a relative low-dimensional space. Using this method, the E-learning websites can arrange corresponding teaching content for different clusters of learners so that the learners’ individual requirements can be more satisfied.

关键词： rough set attributes reduction k-means clustering individualized teaching

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Research of Web Documents Clustering Based on Dynamic Concep...

The First Conference on Web Information System and Applications(WISA 2.04)

作者： □ WANG Yun-hua~1. CHEN Shi-hong~({1.+) 1. School of Computer, Wuhan university, Wuhan 430072. Hubei, China 2. National Engineering Research Center for Multimedia Software, Wuhan 430072. Hubei, China

Conceptual clustering is mainly used for solving the deficiency and incompleteness of domain knowledge. Based on conceptual clustering technology and aiming at the institutional framework and characteristic of Web theme information, this paper proposes and implenments dynamic conceptual clustering algorithm and merging algorithm for Web documents, and also analyses the super performance of the clustering algorithm in efficiency and clustering accuracy.

关键词： conceptual clustering clustering center dynamic conceptual clustering theme web documents cluste ring

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决定煤层气地球化学特征的关键地质时期

天然气工业 2005年第1期25卷 51-54,i027页

作者：赵孟军宋岩苏现波柳少波秦胜飞洪峰中国石油勘探开发研究院河南理工大学

文章在地温梯度、埋藏史研究的基础上,探讨沁水盆地煤层的热演化过程及其对煤层气地球化学特征的控制作用。通过对沁水盆地南部阳城地区和西部霍州地区的煤层热演化史和煤层气地化特征的对比研究表明,演化程度最高的地质时期决定... 详细信息

文章在地温梯度、埋藏史研究的基础上,探讨沁水盆地煤层的热演化过程及其对煤层气地球化学特征的控制作用。通过对沁水盆地南部阳城地区和西部霍州地区的煤层热演化史和煤层气地化特征的对比研究表明,演化程度最高的地质时期决定了煤层气的组份和组份碳同位素特征,即是决定煤层气地球化学特征的关键地质时期,如沁水南部晋城地区的3#煤层在早白垩世末的Ro值达到2.4%～4.2.的最大值,从而形成甲烷碳同位素分布为-2..9‰～-36.7‰的煤层气;三叠系末期,霍州地区2.煤层处于成熟阶段(Ro=0.8%～1.2%),决定了该地区煤层气甲烷碳同位素分布为-47.6‰～-51.7‰。反之,煤层气的组份和组份碳同位素特征也反映了煤层所经历的热演化过程。

关键词：煤层气地球化学特征热演化地温梯度埋藏史

Generation and Characterization of C305,a Murine Neutralizing scFv Antibody That Can Inhibit BlyS Binding to Its Receptor BCMA

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Acta Biochimica et Biophysica Sinica 2005年第6期37卷 415-420页

作者： Mei-Yun lIU~(1.2) Wei HAN~(2.3) Yan-li DING~(2.3) Tian-{1. ZHOU~1.Rui-Yang TIAN~2.Sheng-li YANG~2.Hui lIU~2.Yi GONG~2. 1.College of life Science and Technology,Jinan university. Guangzhou 51.632. China 2.Shanghai Research Center of Biotechnology.Shanghai Institutes for Biological Sciences. Chinese Academy of Sciences. Shanghai 2.02.3,China 3 School of Pharmaceatical Engineering, Shenyang Pharmaceutical university. Shenyang 1.001.. China CollegeoflifeScienceandTechnology JinanUniversityGuangzhou510632China

B-lymphocyte stimulator(BlyS)is a member of the tumor necrosis factor(TNF)family anda key regulator of B cell *** single-chain fragment variable(scFv)antibody against BlySbinding to its receptor BCMA has the potential to play a prominent role in autoimmune disease *** display scFv library constructed on pⅢ protein of M1. filamentous phage was screened using *** five rounds of panning,their binding activity was characterized by *** sequencingrevealed that at least two different scFv gene fragments(C305 and D41.)were *** two differentscFv gene fragments were expressed to obtain the soluble scFv antibodies,then the soluble scFv antibodieswere characterized by means of competitive ElISA and in vitro neutralization *** results indicatedthat C305 is the neutralizing scFv antibody that can inhibit BlyS binding to its receptor BCMA.

关键词： phage display neutralizing scFv antibody BlyS

Isolation and functional analysis of a Brassica junea gene encoding a component of auxin efflux carrier

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Cell Research 2002年第Z1期 235-245页

作者： WEI MIN NI1.2, XIAO YA CHEN1. ZHI {1. XU1.2, {1. WEI XUE1.2,*1.National laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences2.Partner Group of Max-Pla

Polar auxin transport plays a divergent role in plant growth and developmental processes including root and embryo development, vascular pattern formation and cell elongation. Recently isolated Arabidopsis pin gene family was believed to encode a component of auxin efflux carrier (G(?)lweiler et al, 1.98). Based on the Arabidopsis pin1.sequence we have isolated a Brassica juncea cDNA (designated Bjpin1., which encoded a 70-kDa putative auxin efflux carrier. Deduced BjPIN1.shared 65% identities at protein level with AtPINl and was highly homologous to other putative PIN proteins of Arabidopsis (with highest homology to AtPIN3). Hydrophobic analysis showed similar structures between BjPINl and AtPIN proteins. Presence of 6 exons (varying in size between 65 bp and 1.29 bp) and 5 introns (sizes between 89 bp and 463 bp) in the genomic fragment was revealed by comparing the genomic and cDNA sequences. Northern blot analysis indicated that Bjpin1.was expressed in most of the tissues tested, with a relatively h

关键词： efflux carrier Brassica juncea polar auxin transport.