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Assessing the Stability and Accuracy of the Identification of the Traditional Chinese Materia Medica Using DNA Barcoding:A Case Study with Flos Lonicerae Japonica

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Assessing the Stability and Accuracy of the Identification o...

中药与天然药高峰论坛暨第十二届全国中药和天然药物学术研讨会

作者： Dianyun Hou,Jingyuan Song,Linchun Shi,XiaoChong Ma,Jianping Han,Wei Xiao, Zhiying Sun,Ruiyang Cheng,Hui Yao 1 Institute of Medicinal plant Development(IMPLAD),Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100193,P.R.China 2 Agricultural College,Henan university of Science and Technology.Luoyang,Henan 471003, P.R.China. 3 Jiangsu Kanion Pharmaceutical Co.LTD,Lianyungang,Jiangsu,222001,P.R.China 4 state Key laboratory of New-tech for Chinese Medicine Pharmaceutical Process Lianyungang 222001,P.R.China 5 College of Chinese Medicine,Shandong university of Traditional Chinese Medicine,Jinan,P.R. China 6 Beijing university of Chinese Medicine,Beijing 100102,P.R.China

The identification of the traditional Chinese materia medica is very difficult,and DNA barcoding is a efficient method for species ***,the stability and accuracy of DNA barcoding need to further *** a typical traditional Chinese materia medica in Chinese pharmacopoe,Flos Lonicerae Japonica was widely used in China,Japan,Korea,and countries in *** plays an important role on the treatment of H1N1 influenza,hand-foot-and-mouth disease(HFMD)and severe acute respiratory syndromes(SARS).However,the Flos Lonicerae Japonica and its closely related species have been misused with a wide range of ***,it is very imperative to identify the Flos Lonicerae Japonica *** test the stability and accuracy of the ITS2(internal transcribed spacer region 2)and psbA-trnH regions in identification of the Flos Lonicerae Japonica in Chinese pharmacopoeia and its closely related *** this study, Genomic DNA,extracted from the medicinal flowers of Flos Lonicerae Japonica and its closely related species,were used as *** ITS2 and psbA-trnH regions were amplified by polymerase chain reaction(PCR).Sequence assembly was assembled by CodonCode Aligner V *** genetic distances were computed using MEGA V *** intra- ***-specific variations were assessed using six metrics and "barcoding gaps".Species identification was conducted using BLAST1 and Neighbour-joining *** amplification efficiency of ITS2 and psbA-trnH barcodes was 100%.The average intra-specific divergence of ITS2 and psbA-trnH was 0.001 and 0,respectively,and the average inter-specific divergence was 0.033 land 0.0161 in the samples which come from the different *** results showed that the DNA barcoding has potential stability of the identificaiton of the traditional Chinese materia *** identification efficiency of ITS2 and psbA-trnH is 100%using BLAST1 *** the Neighbour-joining rrees,the Lonicera japonica were formed into one

关键词： Flos Lonicerae Japonica Stability Accuracy Identification ITS2 psbA-trnH

An Econometric Modeling Approach to Short-term Crude Oil Price Forecasting

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An Econometric Modeling Approach to Short-term Crude Oil Pri...

第三十届中国控制会议

作者： LI Weiqi~1,MA Linwei~2,DAI Yaping~1 LIU Pei~2 1.School of Automation,Beijing Institute of Technology university,Beijing 100081,P.R.China 2.state Key laboratory of Power Systems,Department of Thermal Engineering,Tsinghua-BP Clean Energy Center, Tsinghua university,Beijing 100084,P.R.China

＜正＞In the competitive petroleum markets,oil price forecasting is becoming increasingly relevant to producers and *** paper develops a structural econometric model of the Brent crude spot price using the explanatory variable of defined relative inventory and OPEC production to analyze and forecast short-run oil price.A Hodrick-Prescott filter method presented obtains the relative inventory variables caused by the short-run supply and demand fluctuations in the crude oil market.A case study using the proposed method is provided,and the results indicate that the model developed in this work is helpful to industry and government in making oil-related decisions and investigating the changes in inventory and OPEC production on price.

关键词： Crude Oil Price Econometric Model Forecasting

Channeled substrate window twin stripe GaAs/GaAlAs visible laser: Fabrication and steady state analysis

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Chinese Journal of Lasers 1992年第4期 3-9页

作者： Xiaobo Zhang, Wen Wang , Zhixian Cong, Fanghai Zhao, Guotong Du, Xizuo Jin, Dingsan Gao(Department of Electronics Science, Jilin university, Changchun 130023,China) Beijing General research Institute for Nonferrous Metals, Beijing, China Department of Methematics, Jilin university Department of Methematics, Jilin university

GaAs/GaAlAs high power window stripe lasers are developed with straight ac-tive layer in region adjacent to facet and curved active layer in central *** one-step liq-uid-phase epitaxy(LPE)growth is used in the fabvrication to from two internal current patheslaterally,allowing of a very simple fabrication *** coupling from two stimulatingregions makes less beam *** steady state analysis of such laser structure agreewell with experimental results.

关键词： GaAs/GaAlAs visible laser steady state analysis

Expression of VEGF_(121)in gastric carcinoma MGC803 cell line

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World Journal of Gastroenterology 2000年第2期6卷 281-283页

作者： Xue Jun Tian Jian Wu Lin Meng Zhi Wei Dang Cheng Chao Shou Beijing Institute for Cancer research,Oncology School of Beijing Medical university,Beijing 100034,China Institute of Cancer research,Chinese Academy of Medical Sciences,Beijing 100021,China 北京医科大学北京

INTRODUCTIONVascular endothelial growth factor(VEGF)whichis also known as vascular permeability factor(VPF)is a heparin-binding,dimeric polypeptide growthfactor and a potent mitogen for endothelial *** can stimulate the endothelial cell growth andenhance the motility through its two knownreceptors flt-1 and *** through thesereceptors,VEGF may stimulate angiogenesis

关键词： stomach neoplasms vascular endothelial growth factor monoclonal antibody MGC803 cell lines

ON THE SINGLE SERVER RETRIAL QUEUE WITH PRIORITY SUBSCRIBERS AND SERVER BREAKDOWNS

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Journal of Systems Science & Complexity 2008年第2期21卷 304-315页

作者： Jinting WANG Department of Mathematics Beijing Jiaotong University Beijing 100044 China

The author concerned the reliability evaluation as well as queueing analysis of M1, M2/G1, G2/1 retrial queues with two different types of primary customers arriving according to independent Poisson flows. In the case of blocking, the first type of customers can be queued whereas the second type of customers must leave the service area but return after some random period of time to try their luck again. The author assumes that the server is unreliable and it has a service-type dependent, exponentially distributed life time as well as a service-type dependent, generally distributed repair time. The necessary and sufficient condition for the system to be stable is investigated. Using a supplementary variable method, the author obtains a steady-state solution for queueing measures, and the transient as well as the steady-state solutions for reliability measures of interest.

关键词： Priority queues reliability retrial queues server breakdowns.

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Establishment and optimization of heating furnace billet temperature model

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Establishment and optimization of heating furnace billet tem...

第24届中国控制与决策会议

作者： Xiaoke Fang 1 , Liye Yu 2 , Qi Wang 1 , Jianhui Wang 1 1. College of Information Science and Engineering, Northeastern university, Shenyang 100819, China2. state Key laboratory of Hybrid Process Industry Automation System and Equipment Technology, Beijing 100071, China

In the metallurgical industry, measuring the temperature distribution directly and accurately in billet heating process is a well-known difficult work. To improve the quality of heating billet, a billet temperature prediction model of heating furnace is necessary. Based on the characteristics of furnace section partition control, this paper firstly established a billet temperature prediction model with three serial neural networks as foundation, then optimized this model with the improved dynamically self-adaptive PSO. The simulation indicated that the establishment of this model is easy, the forecast precision and speed are obviously improved, and the match degree of prediction curve and actual curve is highly increased. All of these proved the effectiveness of this model.

关键词： Heating Furnace Billet Temperature Prediction Model Neural Networks Dynamically Self-adaptive PSO

Time-course analyses of abscisic acid level and the expression of genes involved in abscisic acid biosynthesis in the leaves of Betula platyphylla

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Time-course analyses of abscisic acid level and the expressi...

第十三届全国植物基因组学大会

作者： Rongshu Zhang~(1,2),Chao Wang~1,Zhigang Wei~1,Dean Xia~1,Yuefeng Wang~1,Guifeng Liu~1, Chuanping Yang~(1*),Yucheng Wang~(1*) 1 state Key laboratory of Tree Genetics and Breeding,Northeast Forestry university,Harbin 150040,China 2 College of Landscape Architecture,Northeast Forestry university,Harbin 150040,China

Abscisic acid(ABA) is a plant hormone regulating the essential physiological processes of plants and plant responses to various environmental *** studies revealed that the key enzymes involved in ABA biosynthesis were...

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state Feedback Controller Design for the Robust H∞ Performance Problem

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State Feedback Controller Design for the Robust H∞ Performa...

1998年中国控制会议

作者： Lei Guo and Chun-Bo Feng research Institute of Automation, Southeast university Nanjing 210096, P. R. China

＜正＞This paper considers robust performance analysis and state feedback H∞ controller design for a class of systems with time-varying and nonlinear uncertainties. A sufficient condition based on LMI is provided to judge their robust stability and finite L2-gain property. Solvable conditions are presented for the state feedback design problems. It is shown that this robust H∞ control problem is solvable if and only if a nominal H∞ problem is solvable, and the solution is given in terms of LMIs. The design procedure can also be presented via LMI approach.

关键词： H∞ control robust control LMI.

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略说杜甫的“小臣议论”

山西师大学报（社会科学版） 2002年第4期29卷 82-86页

作者：吴相洲首都师范大学中国诗歌研究中心北京100089

在杜甫的一生当中 ,做左拾遗时那段“小臣议论”的生活 ,是实现其政治抱负的最真实、最具体的行动 ,本文以《北征》为例 ,分析了杜甫对哥舒翰潼关败亡、唐王朝向回纥借兵平叛、马嵬兵变等重要事件的看法 ,展示了杜甫作为一个诗人对国家... 详细信息

在杜甫的一生当中 ,做左拾遗时那段“小臣议论”的生活 ,是实现其政治抱负的最真实、最具体的行动 ,本文以《北征》为例 ,分析了杜甫对哥舒翰潼关败亡、唐王朝向回纥借兵平叛、马嵬兵变等重要事件的看法 ,展示了杜甫作为一个诗人对国家大事的深刻见解和关切之情。以《北征》为代表的一系列诗篇之所以获得成功 ,与表现这些议论有直接关系。杜甫的一些议论未被唐肃宗接纳 ,与肃宗“黜华用实”

关键词：杜甫议论北征黜华用实

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