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A Comparative Analysis of Embryo and Endosperm Proteome from Seeds of Jatropha curcas

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Journal of Integrative Plant Biology 2009年第9期51卷 850-857页

作者： Hui Liu Yu-Jun Liu ming-feng yang Shi-Hua Shen Institute of Botany the Chinese Academy of Sciences Beijing 100093 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China

Jatropha curcas is an important economic plant for biodiesel, which is extracted mainly from the endosperm of its mature seeds. Despite the morphological and functional differences between the embryo and endosperm, proteomic characteristics of the two tissues are not yet known. Similar proteomic profiles were observed in the two-dimensional gel electrophoresis maps from the two tissues. There were 380 and 533 major protein spots in the embryo and endosperm, respectively. Fourteen identical spots, showing a notable change, were selected and identified by tandem mass spectrometry. Among these proteins, dihydrolipoamide acetyltransferase （spot 27） participates in tricarboxylic acid cycle, which is an amphibolic pathway. The two parts both included proteins related to stress （spots 8, 115, 118, 125, 130） and signal transduction （spots 7, 100, 108）. According to the volume percentage of proteins in embryo and endosperm, the proteins in endosperm （spots 54, 61, 73） were catabolism-related enzymes and reserves to provide the nutrition for seed germination; the proteins in embryo （spots 27, 62, 122） were inclined to anabolism and utilized the nutrition from the endosperm to generate a new life.

关键词： embryo endosperm Jatropha curcas liquid chromatography/tandem mass spectrometry proteome.

Scalable high performance de-duplication backup via hash join

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第5期11卷 315-327页

作者： Tian-ming yang Dan feng Zhong-ying NIU Ya-ping WAN Wuhan National Laboratory for Optoelectronics School of Computer Science and Technology Huazhong University of Science and Technology Wuhan 430074 China

Apart from high space efficiency,other demanding requirements for enterprise de-duplication backup are high performance,high scalability,and availability for large-scale distributed *** main challenge is reducing the significant disk input/output(I/O) overhead as a result of constantly accessing the disk to identify duplicate *** inline de-duplication approaches mainly rely on duplicate locality to avoid disk bottleneck,thus suffering from degradation under poor duplicate locality *** paper presents Chunkfarm,a post-processing de-duplication backup system designed to improve capacity,throughput,and scalability for *** performs de-duplication backup using the hash join algorithm,which turns the notoriously random and small disk I/Os of fingerprint lookups and updates into large sequential disk I/Os,hence achieving high write throughput not influenced by workload *** importantly,by decentralizing fingerprint lookup and update,Chunkfarm supports a cluster of servers to perform de-duplication backup in parallel;it hence is conducive to distributed implementation and thus applicable to large-scale and distributed storage systems.

关键词： Backup system De-duplication Post-processing Fingerprint lookup Scalability

Charge regulation by ferromagnetic metal/LiF spin-polarized interface for high-performance Li metal anodes

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Rare Metals 2024年第3期43卷 995-1005页

作者： ming-yang feng Shuang Zhou Yi-Fang Zhang Ya-Ping Wang Chun-Yan Fu Jian-Wen Li Yuan-Lang Wan Zhi-Jia Zhang Yong Jiang An-Qiang Pan State Key Laboratory of Powder Metallurgy School of Materials Science and EngineeringCentral South UniversityChangsha410083China State Key Laboratory of Separation Membranes and Membrane Processes Tianjin Key Laboratory of Advanced Fibers and Energy StorageSchool of Material Science and EngineeringTiangong UniversityTianjin300387China School of Materials Science and Engineering Hebei University of TechnologyTianjin300130China

The interfacial characteristics of the Li metal anode(LMA)play a crucial role in its overall *** various materials being applied to modify the interface,a comprehensive understanding of their specific mechanisms remains to be ***,we have prepared carbon cloth(CC)frameworks with their surfaces modified using ferromagnetic metal/LiF heterogeneous films(T^(M)-LiF-CC)as the substrate for LMA,which exhibit superior electrochemical *** ferromagnetic Co as a representative example,our study demonstrates that the enhanced performance of Co-LiF-CC,compared to bare CC,is attributed to the spinpolarized interface contributed by the Co/LiF *** and LiF play individual roles in redistributing electrons and Li^(+)to promote homogeneous Li *** nanoparticles play a crucial role in generating strong surface capacitance by storing electrons in spin-split bands,while LiF,with low surface diffusion barriers,ensures fast transportation of Li^(+).The Co-LiF-CC@Li electrodes deliver long lives of 7400 and 3600 h at 1 and 2 mA·cm^(-2)in symmetric cells,respectively;moreover,they enable full batteries with high and durable capacities,particularly when the N/P ratios are low(3.3 or even 1.7).

关键词： Lithium metal anode Interfacial charge Ferromagnetic metal Lithium fluoride Spin polarization

Expression of CC Chemokine Ligand 5 in Patients with Rheumatoid Arthritis and Its Correlation with Disease Activity and Medication

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Chinese Medical Sciences Journal 2009年第1期24卷 50-54页

作者： ming-hui yang feng-xia Wu Chuan-mei Xie Yu-feng Qing Guang-rong Wang Xiao-lan Guo Zhong Tang Jing-guo Zhou Guo-hua Yuan Institute of Rheumatology and Immunology Affiliated Hospital of North Sichuan Medical College Nanchong Sichuan 637000 China

Objective To determine the levels of CC chemokine ligand 5 (CCL5) in serum and synovial fluid (SF) from patients with rheumatoid arthritis (RA) and their relations with disease activity and medication. Methods CCL5 in serum and SF was quantified by enzyme-linked immunosorbent assay (ELISA) in 28 RA patients and 21 osteoarthritis (OA) patients. In RA patients, the correlations of CCL5 levels in serum and SF with disease activity were analyzed. Meanwhile, the serum CCL5 levels among RA patients treated with disease-modifying antirheumatic drugs (DMARDs), Tripterygium Glucosides, and other Chinese herbs without disease-modifying effects were also compared. Results CCL5 levels in both serum and SF of RA patients were significantly higher than those of OA patients (P<0.05). Moreover, the level of CCL5 was higher in SF than that in serum of RA patients (P<0.01). Serum CCL5 level was correlated significantly with the number of swollen joints (r=0.3329, P<0.05), erythrocyte sedimentation rate (r=0.4001, P<0.05), and C reactive protein (r=0.3735, P<0.01). In addition, the level of CCL5 had a trend of lower in patients treated with DMARDs or Tripterygium Glucosides than those treated with other Chinese herbs, although the difference was not significant among those patients due to the small number of patients in each group. Conclusions In RA patients, the expression of CCL5 increases and correlates with some clinical and laboratory parameters of RA, which indicate that CCL5 plays an important role in RA and may serve as a useful marker of disease activity. DMARDs and Tripterygium Glucosides might exert their clinical effects through reducing CCL5 production in RA.

关键词： rheumatoid arthritis chemokine CC chemokine ligand 5

Transmutation Scheme of Coin Flipping Protocol and Utilization

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1911-1914页

作者： XIE Yumin ming yang SHI feng MUHAMMAD Kamran Department of Computer Science and Engineering Beijing Institute of Technology Beijing 100081 China State Key Laboratory of Integrated Service Networks Xidian University Xi＇an 710071 Shaanxi China

Coin flipping by telephone protocol（CFP） is utilized in a system to exchange a binary sequence at random between two person apart far from each other. However, CFP cannot he used in a system with many users like in a group environment system. A transmutation of CFP named T-CFP is proposed in this paper. The precondition of T-CFP is the system＇s user trusts the system center and center＇s cheating is meaningless at the same time. The significant difference between CFP and T-CFP is that CFP supports only two users while T-CFP can support many users to exchange special information. The security and efficiency of T-CFP are discussed with a detailed example on T-CFP utilization is demonstrated in this paper.

关键词： coin flipping protocol transmutation-coin flipping protocol one way function Blum

Assessment and utilization of soil water resources

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Journal of Geographical Sciences 2001年第1期11卷 87-91页

作者： WANG Hui-xiao, LIU Chang-ming, yang Zhi-feng (State Key Laboratory of Water Environment Simulation, Beijing Normal University, Beijing 100875, China) Beijing Normal University State Key Laboratory of Water Environment Simulation Beijing China (GRID:grid.20513.35) (ISNI:***)

Based on the analyses of water interactions and water balance, this paper discusses the issues on the assessment and regulation of soil water resources, which lays the scientific basis for limited irrigation and water... 详细信息

关键词： soil water resources assessment water interactions water balance

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环型嵌段高分子的强分凝理论方法

化学学报 2017年第9期75卷 884-892页

作者：柳明杨颖梓邱枫复旦大学高分子科学系聚合物分子工程国家重点实验室上海200433

环型嵌段高分子没有自由端,分相结构会存在两种嵌段共混相区,使经典的线型嵌段高分子强分凝理论不能适用.在强分凝极限下,推导了两个共混相区之间的界面能,并结合两端固定在不同界面上的链的拉伸能,从而建立了环型嵌段高分子的强分凝理... 详细信息

环型嵌段高分子没有自由端,分相结构会存在两种嵌段共混相区,使经典的线型嵌段高分子强分凝理论不能适用.在强分凝极限下,推导了两个共混相区之间的界面能,并结合两端固定在不同界面上的链的拉伸能,从而建立了环型嵌段高分子的强分凝理论研究方法.将此理论应用于环型两嵌段高分子体系,发现环型链比等链长的线型链更难相分离,且相结构周期远小于线型链.这与自洽场理论的结果一致.将此理论应用于环型三嵌段高分子,发现三元相图中心附近出现多种无共混相区的砖块堆积结构,而在靠近相图边缘部分,即组分比例较不对称时,含共混相区的层状和柱状结构占优势.

关键词：强分凝理论强分凝极限环型嵌段高分子相图界面能

Cerebrospinal fluid from rats given hypoxic preconditioning protects neurons from oxygen-glucose deprivation-induced injury

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Neural Regeneration Research 2015年第9期10卷 1471-1476页

作者： Yan-bo Zhang Zheng-dong Guo Mei-yi Li Si-jie Li Jing-zhong Niu ming-feng yang Xun-ming Ji Guo-wei Lv Department of Neurology Affiliated Hospital of Taishan Medical University Department of Endocrinology Affiliated Hospital of Taishan Medical University Department of Neurology Shandong Taishan Chronic Disease Hospital Hypoxia Medical Institute Xuanwu Hospital Capital Medical University

Hypoxic preconditioning activates endogenous mechanisms that protect against cerebral isch- emic and hypoxic injury. To better understand these protective mechanisms, adult rats were housed in a hypoxic environment （8% 02/92% N2） for 3 hours, and then in a normal oxygen environment for 12 hours. Their cerebrospinal fluid was obtained to culture cortical neurons from newborn rats for 1 day, and then the neurons were exposed to oxygen-glucose deprivation for 1.5 hours. The cerebrospinal fluid from rats subjected to hypoxic preconditioning reduced oxygen-glucose deprivation-induced injury, increased survival rate, upregulated Bcl-2 expression and downregulated Bax expression in the cultured cortical neurons, compared with control. These results indicate that cerebrospinal fluid from rats given hypoxic preconditioning protects against oxygen-glucose deprivation-induced injury by affecting apoptosis-related protein expres- sion in neurons from newborn rats.

关键词： nerve regeneration hypoxic preconditioning cerebrospinal fluich cerebral cortex oxygen-glucose deprivation neurons apoptosis Bcl-2/Bax neural regeneration

A study on sustainable development capacity of China's coastal areas using indices dimension reduction method

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Journal of Geographical Sciences 2000年第4期10卷 28-36页

作者： WANG Li-ming, yang Yan-feng, MAO Han-ying, CHEN Wei-min (Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China) 中科院地理科学与资源所北京

Sustainable Development Capacity (SDC) is a comprehensive concept. In order to obtain a relatively objective evaluation of it, many indices of various aspects are often used in assessing index systems. However, the overlapping information of indices is a frequent source deviating the result from the truth. In this paper, 48 indices are selected as original variables in assessing SDC of China's coastal areas. The mathematical method of dimension reducing treatment is used for eliminating the overlapping information in 48 variables. Five new comprehensive indices are extracted bearing efficient messages of original indices. On the base of new indices values, the sequencing of 12 coastal areas SDC is gained, and five patterns of sustainable development regions are sorted. Then, the leading factors and their relations of SDC in these patterns are analyzed. The gains of research are discussed in the end.

关键词： sustainable development capacity dimension reduction China's coastal areas