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Perfect Entanglement Teleportation via Two Parallel W State Channels

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Chinese Physics Letters 2011年第6期28卷 28-31页

作者： wang mei-yu YAN Feng-Li College of Physics Science and Information Engineering Hebei Normal UniversityShijiazhuang 050016 Hebei Advanced Thin Films LaboratoryShijiazhuang 050016

We present a scheme for perfectly teleporting a two-qubit entangled state via two parallel W state *** scheme consists of a positive operator valued measurement(POVM),classical communication and the corresponding loca... 详细信息

关键词： unitary scheme Perfect

Mutagenic activity in Salmonella typhimurium mutants of the dust organic extract and its five fractions derived from an aluminum electrolytic plant

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Journal of Environmental Sciences 1998年第4期10卷 22-26页

作者： wang yu-mei Jia Jing-fen yuan Bao-shan Departmental of Biology Lanzhou UniversityLanzhou 730000China Department of Environmental Medicine Lanzhou Medical CollegeLanzhou 730000China

The dust derived from an aluminum electrolytic plant was collected on a filter, then extracted with benzene. The benzene soluble material was separated into five fractions, namely organic acid, organic alkali, aliphatic hydrocarbon, polycyclic aromatic hydrocarbon and polar compounds. The mutagenic activities of these fractions were examined with two strains of Salmonella typhimurium mutants. It was demonstrated that the dust organic extract showed a very strong mutagenic activity. Among the five fractions tested, three fractions, namely organic acid, polycyclic aromatic hydrocarbon and polar compounds, played an important role in the mutagenic activity of the dust organic extract. The other two fractions, organic alkali and aliphatic hydrocarbon had no mutagenic activities. Therefore, dust abatement is an important measure in aluminum plants for controlling carcinogens, mutagens and protecting the environment and human health.

关键词： dust organic extract Salmonella typhimurium mutagenic activity.

A new approach for effectively determining fracture network connec- tions in fractured rocks using R tree indexing

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Journal of Coal Science & Engineering(China) 2011年第4期17卷 401-407页

作者： LIU Hua-mei wang Ming-yu SONG Xian-feng Center for Water @stem Security ＆ College of Resources and Environment Graduate University of Chinese Academy of Sciences Beijing 100049 China

Determinations of fracture network connections would help the investigators remove those ＂meaningless＂ no-flow-passing fractures, providing an updated and more effective fracture network that could considerably improve the computation efficiency in the pertinent numerical simulations of fluid flow and solute transport. The effective algorithms with higher computational efficiency are needed to accomplish this task in large-scale fractured rock masses. A new approach using R tree indexing was proposed for determining fracture connection in 3D stochastically distributed fracture network. By com- paring with the traditional exhaustion algorithm, it was observed that from the simulation results, this approach was much more effective; and the more the fractures were investigated, the more obvious the advantages of the approach were. Furthermore, it was indicated that the runtime used for creating the R tree indexing has a major part in the total of the runtime used for calculating Minimum Bounding Rectangles （MBRs）, creating the R tree indexing, precisely finding out fracture intersections, and identifying flow paths, which are four important steps to determine fracture connections. This proposed approach for the determination of fracture connections in three-dimensional fractured rocks are expected to provide efficient preprocessing and critical database for practically accomplishing numerical computation of fluid flow and solute transport in large-scale fractured rock masses.

关键词： fracture network connection fractured rooks R tree indexing

Characterization of Gh SERK2 and its expression associated with somatic embryogenesis and hormones level in Upland cotton

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Journal of Integrative Agriculture 2018年第3期17卷 517-529页

作者： LIU Zheng-jie ZHAO Yan-peng ZENG Ling-he ZHANG yuan wang yu-mei HUA Jin-ping College of Agronomy and Biotechnology China Agricultural University/Key Laboratory of Crop Heterosis and Utilization Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement United States Department of Agriculture - Agricultural Research Service (USDA-ARS) Crop Genetics Research Unit Research Institute of Cash Crop Hubei Academy of Agricultural Sciences

Somatic embryogenesis （SE） is one of the most important steps during regeneration of cotton, but the molecular mechanism of SE remains unclear. SOMATIC EMBRYOGENSIS RECEPTOR KINASE （SERK） gene is known to function in SE. A homolog GhSERK2 （accession number： JF430801） was cloned from Upland cotton and characterized for its functions in SE. GhSERK2 expressed in different tissues and showed higher expression level in floral organs than vegetative ones with the highest levels in ovule and anther. GhSERK2 expressed during SE with a high level at globular embryos stage. Upon treatment with indole-3-butytic acid （IBA）, the transcription level of GhSERK2 was induced and promoted SE subsequently. A 2-day treatment of 2,4-dichlorophenoxyacetic acid （2,4-D） induced the expression of GhSERK2, but treatments of 2,4-D for longer periods sharply inhibited the GhSERK2 transcription level of embryogenic callus （EC）. The levels of hormones, including 3-indoleacetic acid （IAA）, abscisic acid （ABA）, and brassinosteroid （BR）, were increased in the initial calli induced from the over-expression of GhSERK2 cotton. Our results indicated that GhSERK2 expression was associated with induction of SE and closely related to hormone levels during tissue culture in Upland cotton, and the gene might play an important role in regeneration of cotton.

关键词： GhSERK2 somatic embryogenesis hormone level expression pattern Upland cotton (Gossypium hirsutum L.)

Efficient Hydration of Olefins Catalyzed by Wool-Supported Palladium Complex

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复旦学报（自然科学版） 2005年第5期44卷 883-884页

作者： Dan-Ni SUI Si-Qian wang Xin wang mei-yu HUANG Ying-Yan JIANG 4060 Group Institute of Chemistry The Chinese Academy of Sciences Zhongguancun Beijing 100080 China

The hydration of olefins is one of the most important prxesses for the production of alcohols[1]. Both transition metal complexes[2] and enzymes[3] have been reported to catalyze the hydration of alkenes, but their catalysts are usually tither unstable or difficult to prepare, expensive and sometimes can not be easily *** our previous papers, some natural biopolymer-metal complexes[4-6] have been used as effective catalysts in hydration to overcome above disadvantages. Recently, wool-Palladium complex(Wool-Pd) has been prepared and found to be able to effficiently catalyze the hydration of olefins to alcohols, such as cinnamyl alcohol(1a) to 1-phenyl-1,3-propanediol(1b), acrylic acid(2a) to lactic acid(2b), 4-vinyl pyridine(3a) to α-methyl-4-pyridinemethanol (3b) and acrylamide(4a) to 1-hydroxyethylamide(4b) respectively in high yields under mild conditions. See scheme 1.

关键词：水合作用石蜡催化剂钯合成方法

Laparoscopic resection of an obturator schwannoma： a case report

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Chinese Medical Journal 2010年第13期123卷 1804-1806页

作者： YI Ke wang yu-mei CHEN Jie Department of Gynecology West China Second University Hospital Sichuan University Chengdu Sichuan 610041 China

Schwannomas are usually benign tumors that arise from a nerve supporting the Schwann cells, those are mostly associated with the cranial or main peripheral nerves. The occurrence of retroperitoneal schwannoma is quite rare, and in such a case, surgical excision is the first option for treatment. In 1996, Melvin confirmed the feasibility of the complete resection of a retroperitoneal schwannoma using laparoscopy for the first time. Until recently, only few cases of laparoscopic resection of retroperitoneal schwannoma have been reported.

关键词： laparoscopy obturator schwannomas

Influence of The P , O-Bidentate Ligand on Ethylene Oligomerization Catalyzedby Iron Complexes

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Chemical Research in Chinese Universities 2001年第2期17卷 228-232页

作者： wang mei, yu Xiao-min, QIAN Ming-xing and HE Ren (State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, P. R. China) Dalian Univ Technol State Key Lab Fine Chem Dalian 116012 Peoples R China

The activity and selectivity of some diamine iron complexes were analyzed. The influence of phosphorous-oxygen chelates on the catalytic activity and selectivity of these diamine iron catalysts in ethylene oligomerization was presented. Experimental results showed that precatalysts exhibited moderate activities for the oligomerization reaction with high selectivities for low carbon C4 and C10 olefins. These selectivities were attributed to high reaction temperatures and accessible metal centers.

关键词： Ethylene oligomerization Diimine iron complexes Ethylaluminoxane Sodium (diphenylphosphino) acetate

Methylation of glucocorticoid receptor gene NR3C1 and clock gene mediate the insomnia?

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Methylation of glucocorticoid receptor gene NR3C1 and clock ...

基于能控性和能观性的基础隔振装置的优化配置

第二届中国睡眠研究会青年学术论坛暨四川省医学会第四次睡眠医学学术会议

作者： wang yu-mei Peking University Sixth Hospital Department of Mental Health of Hebei Medical University

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振动与冲击 2014年第17期33卷 100-104页

作者：王玉梅地震工程与工程振动重点实验室中国地震局工程力学研究所哈尔滨150080

根据控制理论中的能控性和能观性概念,把基础隔振装置视为对结构施以被动控制力的控制器,从而把隔振装置的位置最优化问题转化为控制器位置的选优问题,构造了一个反映能控性和能观性的位置指数,对位置指数的正则化、相关系数等问题进行... 详细信息

根据控制理论中的能控性和能观性概念,把基础隔振装置视为对结构施以被动控制力的控制器,从而把隔振装置的位置最优化问题转化为控制器位置的选优问题,构造了一个反映能控性和能观性的位置指数,对位置指数的正则化、相关系数等问题进行了研究,并把上述方法应用到一个benchmark问题实例中,对隔振垫的可能布置点的指数进行了计算,选出了13个最优位置。该方法为土木工程的减隔振最优化问题提供一个新视角。

关键词：基础减隔振优化配置能动性和能观性 Hankel奇异范数配置指数