检索结果-南通市图书馆

PERFORMANCE OF A PILOT SCALE WETLAND BIOFILTER FOR TREATMENT OF PIG SLURRY

在线全文

学校读者我要写书评

暂无评论

PERFORMANCE OF A PILOT SCALE WETLAND BIOFILTER FOR TREATMENT...

第4届流域管理和城市供水国际会议

作者： HE Lian-sheng~1 LIU Hong-liang~(1,2. Zhu Yingbo~3 1.Department of Environmental Science and Engineering,Tsinghua university,beijing,100084,China 2.{2. Research academy of Environmental Science,beijing,100012.China 3.Institute of Geographical Science and Natural Resource Research,CAS.beijing,100101,China

Animal wastewater has been a major contributor to the eutrophication of surface waters.A small,pilot scalewetland biofilter(WB)system was developed to showcase and evaluate WB as a pig slurry treatment *** systemconsi... 详细信息

关键词： Wetland biofilter Swine wastewater Nitrification Pretreatment Intermittent aeration

合成多肽制备的抗体用于蛋白质免疫组织细胞化学定位研究

在线全文

cnki会议

学校读者我要写书评

暂无评论

生物化学与生物物理进展 2004年第2期31卷 150-153页

作者：邢立静种康许智宏王锐谭克辉中国科学院植物研究所中国科学院光合作用与环境分子生理学重点实验室北京100093 兰州大学生命科学学院兰州730000

对本实验室克隆的小麦春化相关基因VER2.码蛋白的氨基酸序列进行软件分析 ,确定了具有免疫原性的一段 (2.0 4～ 2.1 5位 )含 1 2.氨基酸的短肽 ,用化学法合成了该短肽并将其与牛血清白蛋白 (BSA)相偶联 ,用偶联物作为抗原免疫家兔获得... 详细信息

对本实验室克隆的小麦春化相关基因VER2.码蛋白的氨基酸序列进行软件分析 ,确定了具有免疫原性的一段 (2.0 4～ 2.1 5位 )含 1 2.氨基酸的短肽 ,用化学法合成了该短肽并将其与牛血清白蛋白 (BSA)相偶联 ,用偶联物作为抗原免疫家兔获得该 1 2.的抗体 .分别用VER2.蛋白抗体和该 1 2.抗体对VER2.白进行免疫细胞定位比较分析 ,两者所得结果一致 ,即二者在免疫组化检测蛋白质时的灵敏性和特异性方面具有一致的特性 .结果表明 ,化学法合成短肽制备的抗体可用于蛋白质的免疫组织细胞化学分析 ,该方法快捷灵敏。

关键词：化学合成短肽 VER2.白抗体纯化免疫组织细胞化学植物体

The Study of the Rough Set Neural Networks Based on SOFM

在线全文

学校读者我要写书评

暂无评论

The Study of the Rough Set Neural Networks Based on SOFM

2.11 International Conference on Business Management and Electronic Information(BMEI 2.11)

作者： DUAN Li-zhong 1 College of Management beijing university of {2. Medicine beijing China DUAN Gu-na 2.College of Mechanical and Electronical Engineering North China university of Technology beijing China DUAN Jun 3 university of Science and Technology Inner Mongolia Baotou China ZHANG Ying 4 College of Management beijing university of {2. Medicine beijing China GENG Hao 5 College of Management beijing university of {2. Medicine beijing China XUAN Chun-yu 6 College of Management beijing university of {2. Medicine beijing China

Objective:This paper refers to a New Rough Set neural network based on *** model perfectly solves many problems,such as the effects of training sample size and sample quality on accuracy of artificial neural ***,the new network has reduced computation and time training needed,simplified the neural network structure and improved the system ***:Combining the rough set with the neural network which bases on self-organized feature map （SOFM）,it has presented an architecture of rough set neural network system in this *** paper also designs a system flow chart and describes work principle of each ***:The validity of these models has been tested by practical *** results indicate that the system not only increases the quality and rate of diagnosis,but also reduces the measure items and diagnosis costs,which makes the result visualized and it has favorable applied ***:The calculation result of New Rough Set neural network based on SOFM is *** new model synthesizes the advantages of rough set theory and neural network.

关键词： rough set self-organizing feature map neural network fault diagnosis

SYNTHESIS OF DERIVATIVES OF 3-β-D-XYLOPYRANOSYL-1,2.4-OXADIAZOLES

在线全文

cnki会议

学校读者我要写书评

暂无评论

chinese Chemical Letters 1992年第8期3卷 597-600页

作者： Ling Jiao DONG Li LI Ling Tai MA Li He ZHANG School of Pharmaceutical sciences,beijing Medical {2.,beijing 100083

The synthesis of derivatives of 3-β-D-xylopyranosyl-1,2.4-oxadiazoles is accomplished by condensing protected β-D-xylopyranosyl amidoxime with acid anhydrides or various substituted benzoyl chlorides in good *** structures of now derivatives were identified by spectra and elemental analysis. The stability of 1,2.4-oxadiazole ring and mechanism of cyclization were. investigated.

关键词： D-XYLOPYRANOSYL-1,2.4-OXADIAZOLES SYNTHESIS OF DERIVATIVES OF 3 台五

在线全文

学校读者我要写书评

暂无评论

半定互补问题的全局收敛算法

系统科学与数学 2001年第4期21卷 480-485页

作者：张立平高自友赖炎连北方交通大学交通运输学院北京100044 中国科学院数学与系统科学研究院应用数学研究所北京100080

基于某一效益函数，本文给出了求解半定互补问题的下降算法，并在适当的条件下证得其全局收敛性．

关键词：半定互补问题效益函数全局收敛半定线性规划锥下降算法

Special Hybrid Element with Drilling Degrees of Freedom

在线全文

学校读者我要写书评

暂无评论

Special Hybrid Element with Drilling Degrees of Freedom

The Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational Mechanics

作者： A. P. Wang , Z. S. Tian Department of Mechanics, graduate School, chinese {2. of sciences, P. O. Box 2.06, beijing 100080, China

A special hybrid finite element with drilling degrees of freedom - which contains a traction-freecircular boundary - has been developed based on the Hellinger-Reissner *** assumed stress field satisfies the equilibrium equations in the elements as well as thetraction-free conditions on assigned boundaries respectively. The assumed stress field also satisfiesthe compatibility equations when the element is degenerated into 2.dimensional *** combination of the special element with the ordinary assumed displacement elements can beefficiently used for analyzing the stress concentrations around some *** stresses of plate with symmetric fillets-in different ratios of the height to the width-undertension or bending are analyzed to evaluate the following two cases: 1) Combining the specialassumed stress hybrid elements with the ordinary isoparametric elements which are derived by theconventional assumed displacement approach. 2. Using the conventional assumed displacementisoparametric elements *** results have demonstrated that the special element can provide much more accurate stressconcentration factors and the distribution of circumferential stress σθalong the rim of the groovesthan those obtained by using the conventional assumed displacement elements.

关键词：

基于SDL语言的移动Ad-hoc网路由协议的设计和验证

在线全文

cnki会议

学校读者我要写书评

暂无评论

计算机科学 2004年第3期31卷 31-33页

作者：潘红艳于全中国科学技术大学研究生院中国电子设备系统工程公司研究所

论文简要阐述了SDL的基本概念及使用它开发通信协议软件的优点,并给出在移动Ad-hoc网路由协议开发中采用SDL语言对路由协议软件进行设计和验证的实例,为通信协议的设计和验证提供了一种有效的方法。

关键词：移动Ad-hoc网路路由协议设计验证通信协议软件 SDL语言计算机网络

Adaptive control design of L2.-disturbance attenuation of multimachine power systems with SMES units by using Hamiltonian function method

在线全文

学校读者我要写书评

暂无评论

Adaptive control design of L2 -disturbance attenuation of mu...

第二十一届中国控制会议

作者： WANG Yu-zhen, LI Chun-wen, CHENG Dai-zhan ( Department of Automation, Tsinghua university, beijing, 100084, China Institute of Systems Science, {2. academy of sciences, beijing, 100080, China)

＜正＞By using Hamiltonian function method, this paper investigates adaptive control design of L2.-disturbance attenuation of an n -machine power system with m SMES （superconducting magnetic energy storage） units, and proposes a decentralized control scheme for the adaptive case of parameter perturbations. Firstly, the n -machine power system with the m SMES units is expressed as a dissipative Hamiltonian system by using a pre-feedback control. Then the stability of the achieved dissipative Hamiltonian system is studied. Thirdly, this paper investigates the energy-based adaptive control design of L2.-disturbance attenuation of the system with parameter perturbations.

关键词： n -machine power system SMES dissipative Hamiltonian realization L2.- disturbance attenuation energy-based adaptive control

玉米和类玉米杂交后代异染色质纽的遗传稳定性分析

在线全文

cnki会议

学校读者我要写书评

暂无评论

武汉大学学报（理学版） 2003年第4期49卷 528-532页

作者：韩永华郭乐群李冬郁谷明光宋运淳武汉大学生命科学学院/植物发育生物学教育部重点实验室中国科学院遗传研究所北京100101 广西畜牧研究所广西南宁530001

利用玉米的近缘亲属摩擦禾的基因组DNA ,对玉米自交系 330、二倍体多年生类玉米及其远缘杂交孤雌生殖后代异源种质纯系 5 4 0的染色体进行比较基因组原位杂交 ,发现上述 3个供试种染色体上的异染色质纽因杂交信号极强而能被清楚地显示 ... 详细信息

利用玉米的近缘亲属摩擦禾的基因组DNA ,对玉米自交系 330、二倍体多年生类玉米及其远缘杂交孤雌生殖后代异源种质纯系 5 4 0的染色体进行比较基因组原位杂交 ,发现上述 3个供试种染色体上的异染色质纽因杂交信号极强而能被清楚地显示 .与亲代相比 ,5 4 0中出现异染色质纽数目减少的现象 .

关键词：玉米二倍体多年生类玉米摩擦禾比较基因组原位杂交异染色质纽遗传稳定性分子显带遗传育种