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china City Planning Review 2007年第1期16卷 22-33页

作者： WU Liangyong, Professor, School of Architecture, Tsinghua Univercity, beijing, P. R. china Director, Institute of Architectural & Urban Studies, Tsinghua {2., beijing, P. R. china Member, chinese academy of Science Member, chinese academy of Engineering.LIU Jian

1. Summary of the first phase re- search beijing, as china’s capital, must develop into an integral part of the World City system to meet the challenges imposed by the international development of politics, economy a... 详细信息

关键词： Tianjin Hebei politics cooperation challenges size

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一类S-mKdV方程族及其扩展可积模型

物理学报 2003年第1期52卷 5-11页

作者：张玉峰闫庆友张鸿庆山东科技大学信息学院大连理工大学机械学院大连116024 大连大学先进设计技术中心大连116622

由loop代数 A1 的一个子代数出发 ,构造了一个线性等谱问题 ,再利用屠格式计算出了一类Liouvelle意义下的可积系统及其双Hamilton结构 ,作为该可积系统的约化 ,得到了著名的Schr dinger方程和mKdV方程 ,因此称该系统为S mKdV方程族 .... 详细信息

由loop代数 A1 的一个子代数出发 ,构造了一个线性等谱问题 ,再利用屠格式计算出了一类Liouvelle意义下的可积系统及其双Hamilton结构 ,作为该可积系统的约化 ,得到了著名的Schr dinger方程和mKdV方程 ,因此称该系统为S mKdV方程族 .根据已构造的 A1 的子代数 ,又构造了维数为 5的loop代数 A2.的一个新的子代数 G ,由此出发设计了一个线性等谱形式 ,再利用屠格式求得了S mKdV方程族的一类扩展可积模型 .利用这种方法还可以求BPT方程族、TB方程族等谱系的扩展可积模型 .因此本方法具有普遍应用价值 .最后作为特例 ,求得了著名的Schr dinger方程和mKdV方程的可积耦合系统 .

关键词： loop代数 Hamilton结构扩展可积模型 Schroedinger方程 mKdV方程线性等谱可积耦合系统

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社会认知职业理论与传统职业理论比较研究

心理科学进展 2002年第2期10卷 225-232页

作者：龙立荣方俐洛李晔中国科学院心理研究所北京100101 华中师范大学社会学系武汉430079

社会认知的职业理论将心理、社会、经济等影响因素通过自我效能、结果期待和目标3个核心概念整合起来,动态性地揭示职业选择和发展的全过程,克服了传统理论将心理、社会、经济等影响因素分割开来进行研究并建构理论、缺乏动态性等局限性... 详细信息

社会认知的职业理论将心理、社会、经济等影响因素通过自我效能、结果期待和目标3个核心概念整合起来,动态性地揭示职业选择和发展的全过程,克服了传统理论将心理、社会、经济等影响因素分割开来进行研究并建构理论、缺乏动态性等局限性,使职业理论更全面。但和传统职业理论相比,该理论还存在概念比较模糊,操作性较差等不足。

关键词：社会认知职业理论职业选择

Paleornithology of china: A general review

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chinese Science Bulletin 1999年第23期44卷 2113-2116页

作者： HOU Lianhai and ZHOU Zhonghe Institute of Vertebrate Paleontology and Paleoantfiropology, chinese academy of Sciences , Heijing 100044, {2. Natural History Museum and Department of Ecology and Kvolut ionary Kiology , university of Kansas , Lawrence , KS 66045 , USA Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Heijing China Natural History Museum and Department of Ecology and and Evolutionary Biology University of Kansas Lawrence USA

Study of fossil birds in china was first conducted by western scholars in last century, and extensive study of Cenozoic birds by chinese scholars since the 1970s. However, it is the finding of Mesozoic birds, mostly from northeast china since the 1990s, that has become the focus and highlight of paleornithology of china. Enantiornithine birds from the Late Jurassic-Early Cretaceous of china provide the most complete record of the early evolution of this

关键词： Mesozoic brids origin of brids origin of avian flight.

高效液相色谱法拆分盐酸哌醋甲酯的主要代谢产物盐酸哌醋甲酸

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色谱 2003年第6期21卷 587-589页

作者：张建华邓玉林北京理工大学生命科学与技术学院北京100081

首次发展了一种新型快速的采用高效液相色谱直接拆分血液中手性药物盐酸哌醋甲酯(methylphenidate,MPH)的主要代谢产物盐酸哌醋甲酸(ritalinicacid,RA)的方法。实验中采用α1 酸性糖蛋白手性分离柱,以0 4%(体积分数)的醋酸水溶液(含体... 详细信息

首次发展了一种新型快速的采用高效液相色谱直接拆分血液中手性药物盐酸哌醋甲酯(methylphenidate,MPH)的主要代谢产物盐酸哌醋甲酸(ritalinicacid,RA)的方法。实验中采用α1 酸性糖蛋白手性分离柱,以0 4%(体积分数)的醋酸水溶液(含体积分数0 1%的DMOA,pH3 4)为流动相,成功地对体外试验中RA的含量进行了分析,结果表明在人和狗的血浆中d MPH的代谢速度明显的快于l MPH。

关键词：高效液相色谱法手性拆分盐酸哌醋甲酯代谢产物盐酸哌醋甲酸中枢神经系统兴奋剂

煤的吡啶吸附等温线及影响煤吸附行为因素的研究(英文)

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燃料化学学报 2004年第2期32卷 135-139页

作者：陈皓侃三浦孝一李文李保庆中国科学院山西煤炭化学所煤转化国家重点实验室山西太原030001 京都大学化学工程系

采用四种标准煤样和模型化合物(WK11离子交换树脂及其Na和Ca类型),在30℃～60℃对比研究煤的吡啶气相吸附等温线和影响其吸附行为的因素。模型化合物结果表明:吡啶能断开WK11中的固有氢键,形成更强的吡啶羧基官能团氢键,Na或Ca型WK11... 详细信息

采用四种标准煤样和模型化合物(WK11离子交换树脂及其Na和Ca类型),在30℃～60℃对比研究煤的吡啶气相吸附等温线和影响其吸附行为的因素。模型化合物结果表明:吡啶能断开WK11中的固有氢键,形成更强的吡啶羧基官能团氢键,Na或Ca型WK11由于无法与吡啶形成氢键,因此吸附量很小,并几乎无溶胀现象。四种煤样的吡啶吸附结果表明:由于煤化程度和结构的不同,至少有两种类型的吡啶吸附等温线。同时,煤的吡啶吸附总量并不仅取决于在吸附过程中形成的氢键数量,而且也受其它特殊作用力的影响,这种影响对于高阶煤尤其显著。

关键词：煤吡啶吸附等温线氢键

A Study Of The Jacking System For Ferroalloy Electric Furnace Electrode Based On Linear Motor Controlling

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A Study Of The Jacking System For Ferroalloy Electric Furnac...

2.09 9th International Conference on Electronic Measurement & Instruments（ICEMI’2.09）

作者： Xue Peng 1 Zhu Jiwei 2.1 Department of Electrical and Electronic Engineering Changchun university Of Technology Changchun china 2.Changchun Institute of Optics Fine Mechanics and Physics {2. academy of Sciences Changchun china

The current jacking system for the hydraulic electric furnace electrode in Jilin Ferroalloy Factory is adopted the hand control in electrode jacking plan,against this situation,a structure,which can adapt the linear stepping motor to control the digital valve for adjusting the location of the hydraulic system has been raised,and the current system would realize automatic control to the electrode jacking by this way,at the same time,and by Fuzzy-PID control method the linear stepping motor would be controlled to obtain precise positioning in *** hydraulic system controlled by digital valve have been described and analyzed in jacking feasibility and ***’s more,it is inspected and verified that the adjustment of this system has high precision and quick response.

关键词： linear stepping motor digital valve Fuzzy-PID

Effects of Lactosucrose on intestinal barrier in TNBS-lnduced Colitis in Rats

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Effects of Lactosucrose on intestinal barrier in TNBS-lnduce...

生猪优质健康养殖关键技术国际学术研讨会

作者： Z Ruan~1 YLYin~(*1 2. GY Wu~2.(State Key Laboratory of Food Science and Technology Nanchang university Nanchang 330047 china Institute of Subtropical Agriculture the {2. academy of Sciences Changsha 41012. china)

＜正＞To investigate the effects of Lactosucrose on intestinal barrier in TNBS-Induced *** Lactosucrose were administered rats with experimental ulcerative colitis induced by 2.4,6-trinitrobenzene sulfonic acid（TNBS）.The colon structure was observed hematoxylin-eosin ***,a kind of tight junction protein,were determined by immunohistochemical *** mRNA expression was assessed by reverse transcriptase-polymerase chain reaction（RT-PCR）.Results Lactosucrose significantly improved

关键词： Lactosucrose rats

DISTRIBUTION CHARACTERISTICS OF AGERATINA ADENOPHORA (COMPOSITAE) ROOTS IN DIFFERENT INVADED AREAS

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DISTRIBUTION CHARACTERISTICS OF AGERATINA ADENOPHORA (COMPOS...

International Congress on Biological Invasions

作者： Fu-Rong GUI~(1,2.,Wan-Xue LIU~2.and Fang-Hao WAN~2.1 Key Laboratory for Agricultural Biodiversity and Pest Management of Ministry of Education, Plant Protection College,Yunnan Agricultural university,Kunming 6502.1,china 2.State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,{2. academy of Agricultural Sciences,beijing,100081,china

The Crofton weed Ageratina adenophora(Spreng.) King & Robinson is a global worst invasive weed,it rapidly became the dominant flora in the invaded areas,where it threatened the native biodiversity and ecosystem,and caused serious economic *** present paper investigated and compared the distribution of A. adenophora roots in newly,moderate and heavily invaded areas,the objective is to find the distribution characteristics of roots in different invaded areas of ***. The results showed that,the mean root length density(RLD) of *** increasing following with its invading *** with moderate and heavily invaded areas of ***,roots system in newly invaded area is obviously under developed,their mainly exist during 0-10cm depth soil,and the mean RLD in this area visibly less than the above two invaded areas(p2.cm depth in the newly invaded areas is evidently lower than that of moderate and heavily invaded areas.

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Key technologies for solid state lighting

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Key technologies for solid state lighting

国际纳光电子学研讨会

作者： Yi Luo~(1 2. Yanjun Han~1 Keyuan Qian~2.(1)State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science and Technology Tsinghua university beijing {2. 100084. (2.Semicondutor Lighting Lab graduate School at Shenzhen Tsinghua university Shenzhen {2. 518055

＜正＞The latest development of the key technologies including improvement of the intemal quantum efficiency and external quantum efficiency of the high-power GaN-based LEDs,packaging and system application was review...

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