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TiC_P/7075铝基复合材料的半固态触变成形

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特种铸造及有色合金 2009年第4期29卷 331-333页

作者：呼努斯图许萍刘慧敏内蒙古师范大学物理与电子信息学院内蒙古工业大学材料科学与工程学院

用原位反应喷射沉积法制备TiCP/7075铝基复合材料,并进行半固态触变成形试验,研究了TiCP/7075铝基复合材料的半固态触变成形性及其成形后的微观组织与力学性能。结果表明,该材料具有良好的半固态触变成形性,在成形压力仅为2.～2.MPa的... 详细信息

用原位反应喷射沉积法制备TiCP/7075铝基复合材料,并进行半固态触变成形试验,研究了TiCP/7075铝基复合材料的半固态触变成形性及其成形后的微观组织与力学性能。结果表明,该材料具有良好的半固态触变成形性,在成形压力仅为2.～2.MPa的条件下,就能够进行半固态触变成形。在62.℃进行半固态触变成形后,其组织仍能保持均匀的等轴晶特征,平均晶粒尺寸为30～40μm;半固态触变成形试件经T6处理后其硬度HRB为82.85。

关键词：半固态触变成形原位反应喷射沉积 TiCp/7075铝基复合材料

Ashkin-Teller Formalism for Elastic Response of DNA Molecule to External Force and Torque

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Communications in Theoretical Physics 2008年第2期49卷 525-528页

作者： CHANG Zhe~1 WANG Ping~(1,2. ZHENG Ying-Hong~(1,2. 1 Institute of High Energy Physics,the Chinese Academy of Sciences,P.O.Box 918(4),Beijing 100049,China 2.Graduate School,the Chinese Academy of Sciences,Beijing 100049,China Institute of High Energy Physics the Chinese Academy of Sciences P.O. Box 918(4) Beijing 100049 China Graduate School the Chinese Academy of Sciences Beijing 100049 China

We propose an Ashkin Teller-like model for elastic response of DNA molecule to external force and *** base-stacking interaction is described in a simple and uniform *** obtain the phase diagram of dsDNA,andin particular,the transition from B form to the S state induced by stretching and *** elastic response of thessDNA is presented also in a unified *** close relation of dsDNA molecule structure with elastic response isshown *** calculated folding angle of the dsDNA molecule is 59.2..

关键词： dsDNA elastic property

HPLC法同时测定灯盏细辛注射液中10种成分

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中成药 2017年第12期39卷 2521-2524页

作者：刘光丽徐文龙王张成都中医药大学药学院四川成都611137 成都中医药大学民族医药学院四川成都611137

目的建立HPLC法同时测定灯盏细辛注射液(灯盏细辛)中5-咖啡酰基奎宁酸、绿原酸、4-咖啡酰基奎宁酸、咖啡酸、1,3-二咖啡酸酰奎宁酸、野黄芩苷、异绿原酸B、3,5-二咖啡酰基奎宁酸、灯盏花甲素、4,5-二咖啡酰基奎宁酸的含有量。方法该药... 详细信息

目的建立HPLC法同时测定灯盏细辛注射液(灯盏细辛)中5-咖啡酰基奎宁酸、绿原酸、4-咖啡酰基奎宁酸、咖啡酸、1,3-二咖啡酸酰奎宁酸、野黄芩苷、异绿原酸B、3,5-二咖啡酰基奎宁酸、灯盏花甲素、4,5-二咖啡酰基奎宁酸的含有量。方法该药物水提液的分析采用InertsilODS-3色谱柱(2.0 mm×4.6 mm,5μm);流动相0.4%磷酸-乙腈,梯度洗脱;体积流量0.9 m L/min;柱温30℃;检测波长32. nm。结果 10种成分在各自范围内线性关系良好(r≥0.999 0),平均加样回收率94.11%~100.64%,RSD 1.12.~2.77%。结论该方法简便准确,重复性好,可用于灯盏细辛注射液的质量控制。

关键词：灯盏细辛注射液化学成分 HPLC

基于逆转录酶结构和耐药突变的新型非核苷类逆转录酶抑制剂研究进展

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国际药学研究杂志 2018年第2期45卷 81-87页

作者：唐成润杨柳萌郑永唐昆明医科大学药学院暨云南省天然药物药理重点实验室昆明650500 中国科学院昆明动物研究所中国科学院和云南省动物模型与人类疾病机理重点实验室昆明650223

为了应对艾滋病治疗过程中严重的耐药性问题,开发新型抗耐药性非核苷类逆转录酶抑制剂(NNRTI)势在必行。本文通过分析2.15~2.18年文献报道的新型抗耐药性NNRTI的代表性实例,探讨了抗耐药性NNRTI与逆转录酶的结合模式,并讨论了药物化学... 详细信息

为了应对艾滋病治疗过程中严重的耐药性问题,开发新型抗耐药性非核苷类逆转录酶抑制剂(NNRTI)势在必行。本文通过分析2.15~2.18年文献报道的新型抗耐药性NNRTI的代表性实例,探讨了抗耐药性NNRTI与逆转录酶的结合模式,并讨论了药物化学策略在发现和优化新型抗HIV-1药物中的作用。本文指出基于逆转录酶晶体结构信息的药物化学策略是快速发现具有新结构的NNRTI的有效途径,前期构效关系研究能为后续的药物开发提供一定的支持。

关键词：艾滋病毒逆转录酶非核苷类逆转录酶抑制剂耐药性分子对接

The Logistics Bottlenecks and Countermeasures of China’s E-Commerce

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The Logistics Bottlenecks and Countermeasures of China’s E-...

工程和商业管理国际学术会议

作者： LIU Ping 1 2.1. Economic Management College of Northeast Forestry University Harbin P.R. China 150040 2. Economic Management College of Northeast Agriculture University Harbin P.R. China 150030

Electronic commerce has become the mainstream business model of 2.st century. With the further promotion and application of e-commerce, the impacts of logistics’ importance on e-commerce activity are increasingly evident and modern logistics has become a key to success for e-commerce. However, so many constrains which lie in the combination of e-commerce and logistics course have a serious impact on the improvement of logistics distribution efficiencies, which also limits the development of e-commerce. This paper first introduces the interaction between e-commerce and logistics, then focuses on discussing the logistics bottlenecks in e-commerce environment and finally puts forward the corresponding countermeasures on this basis.

关键词： E-Commerce Modern Logistics Bottlenecks Countermeasures

多组份多出口稀土串级萃取静态优化设计研究(Ⅱ)静态程序设计及动态仿真验证

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中国稀土学报 2004年第2期22卷 171-176页

作者：吴声廖春生贾江涛严纯华北京大学稀土材料化学及应用国家重点实验室

基于多组分多出口稀土串级萃取优化参数的静态设计算法,设计了相应的计算程序,采用该程序针对某稀土分离实例进行了静态参数计算,并对最优化工艺参数进行了动态仿真验证。结果表明,采用该静态设计算法的软件在参数计算中运行快速、结果... 详细信息

基于多组分多出口稀土串级萃取优化参数的静态设计算法,设计了相应的计算程序,采用该程序针对某稀土分离实例进行了静态参数计算,并对最优化工艺参数进行了动态仿真验证。结果表明,采用该静态设计算法的软件在参数计算中运行快速、结果准确,完全可满足萃取分离工艺的参数设计要求。

关键词：串级萃取静态计算优化设计计算程序稀土

Researching on Economic Benefits of Grid-Connected Wind Farm with Conditional Value-at-Risk

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Researching on Economic Benefits of Grid-Connected Wind Farm...

2.11 International Conference on Advanced Power System Automation and Protection(APAP 2.11)

作者： Yu Hua 1 Zhang Limin 2.1. Key Laboratory for power technology of renewable energy sources Hunan Province Changsha University of Science and Technology Changsha 410114 China 2. Hengshan County Electricity Board Hengyang 42.300 China

Large-scale grid integration of wind energy conversion systems will affect the stability of the system, because the randomness of the wind power output. Meanwhile, In order to analyze the economic benefits of grid-connected wind farm, the optimization model is builted with a new mathematical method of Conditional Value-at-Risk （CVaR）. In this model, the randomness characteristic of the output of the wind power is considered. The maximum allowable capacities of wind farm can be calculated under different probability levels. Moreover, the extreme impact can be deal with effectively under tail risk over the probability;besides a benefit model of wind power which considering all the benefits and cost of wind power is established. Therefore, the different capacities of grid-connected wind farm and economic benefit at different wind speeds are obtained. CVaR function is transformed into integral form of probability density function. In order to simplify the model to linear optimization, Aided variable is introduced and continuous integral calculation is replaced by discrete ***, the capacities of grid-connected wind farm and economic benefits can be easily calculated. The result of analysis and calculation on the IEEE30 system prove that method is verified.

关键词： Capacity of Grid-Connected Wind Farm CVaR Economic Benefit Risk

Ultrafast spectroscopic study of high quality crystalline zinc phthalocyanine thin films as electron donor layer in the organic solar cell

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Ultrafast spectroscopic study of high quality crystalline zi...

ICAM Workshop Physics of Novel Energy Materials

作者： Xiaochuan He1, Donghang Yan2. Yuxiang Weng1 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190 2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 13002.

In contrast to the prevailing inorganic solar cells, the developing organic solar cells have a number of advantages of low cost, lightweight, and flexibility. Currently its solar energy conversion efficiency reaches a...

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Two Improved Methods of SIFT Algorithm Combined with Harris

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Two Improved Methods of SIFT Algorithm Combined with Harris

第2.届中国控制与决策会议

作者： Shao Wei 1 , Li Na 2.,Sun Lijuan 1 , Sui Shulin 2., Liu Xiangpeng 2.1. College of Automation Electronic&Engineering, Qingdao University of Science and Technology, Qingdao, 2.6042.China 2. College of Mathematical Science and Physics, Qingdao University of Science and Technology, Qingdao, 2.6061, China

Due to the invariance of scale, rotation and illumination, SIFT algorithm is commonly used in image matching. According to Harris algorithm, two simplified methods of SIFT algorithm are developed to improve real-time efficiency and robustness of feature detection. In the stage of accurate keypoints localization, two improved methods are proposed to eliminate edge responses. One is the replacement of Hessian matrix by the local autocorrelation function of Harris;the other is using the measure of corner response function of the Hessian matrix. The experimental results show that the improved methods can increase the performance of SIFT algorithm.

关键词： SIFT Algorithm Harris Algorithm The Hessian matrix