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Trajectory controllability of fractional dynamical systems

Journal of Control and Decision 2017年第2期4卷 114-130页

作者： Venkatesan Govindaraj Muslim Malik raju k.george Department of Mathematics Indian Institute of Space Science and TechnologyTrivandrumIndia School of Basic Sciences Indian Institute of Technology MandiMandiIndia

In this paper,we discuss the trajectory controllability of linear and nonlinear fractional dynamical systems represented by the fractional differential equations in the sense of Caputo fractional derivative by using the Mittag-Leffler function and Gronwall-Bellman *** the nonlinear system,we assume Lipschitz-type conditions on the *** are given to illustrate the theoretical results.

关键词： Fractional derivative trajectory controllability Mittag-Leffler function Gronwall-Bellman inequality Lipschitz continuity

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Numerical simulation and experiment of error field measurement using luminous trace of electron beam in SST-1

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Plasma Science and Technology 2019年第10期21卷 9-16页

作者： Someswar DUTTA Y PARAVASTU J DHONGDE H CHUDASMA S george k DHANANI A MAkWANA C DODIYA P VARMORA D k SHARMA A k SINGH U kUMAR D RAVAL U PRASAD Z kHAN R SRINIVASAN D raju Institute for Plasma Research GandhinagarGujrat 382428India Homi Bhabha National Institute (HBNI) AnushaktinagarMumbai 400094India

In contrast to the earlier experiments conducted in other machines, here, in SST-1 the error field measurement experiment is performed with a filled gas pressure ~8×10^-4 mbar which helped to create a luminescent toroidal beam of electron path originated due to impact excitation and guided by the toroidal magnetic field. Beam path deviations are observed and recorded from radial and top ports using visible range cameras. Such creation and detection of the electron beam path differs from the earlier works where the gun emitted electron beam deviation in ultrahigh vacuum was detected on a collector-grid/fluorescent screen. In the present experiment, large beam deviations were observed. Later investigation of the experimental set-up reveals existence of a possible source of radial electric field in between the source and the vacuum vessel which are separately grounded. Thus, to understand the observed phenomena, experiments are numerically modeled with deviated TF coil set, PF coil set and the electron source location. A particle tracing code is used to follow the electron path in the magnetic field generated by the coil set of interest. Simulation results suggest that the large deviation corresponds to the E×B drifts and not due to the large field errors. Toroidally averaged field errors of the SST-1 TF coils at toroidal field of B0?=?15 kG are negligibly small ~B0?×?10^-6 or less, which should not adversely affect the plasma performance.

关键词： electron beam error field SST-1 TF coil

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Analysis of Gene Expression Patterns during Seed Coat Development in Arabidopsis

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Molecular Plant 2011年第6期4卷 1074-1091页

作者： Gillian Dean YongGuo Cao DaoQuan Xiang Nicholas J. Provart Larissa Ramsay Abdul Ahad Rick White Gopalan Selvaraj raju Datla george Haughn Department of Botany University of British Columbia 6270 University Blvd Vancouver BC V6T 1Z4 Canada National Research Council of Canada Plant Biotechnology Institute 110 Gymnasium Place Saskatoon SK S7N owg Canada Department of Cell and Systems Biology/Centre for the Analysis of Genome Evolution and Function University of Toronto 25 Willcocks St Toronto ON M5S 3B2 Canada Department of Statistics University of British Columbia 6356 Agricultural Road Vancouver BC V6T 1Z2 Canada

The seed coat is important for embryo protection, seed hydration, and dispersal. Seed coat composition is also of interest to the agricultural sector, since it impacts the nutritional value for humans and livestock alike. Although some seed coat genes have been identified, the developmental pathways controlling seed coat development are not completely elucidated, and a global genetic program associated with seed coat development has not been reported. This study uses a combination of genetic and genomic approaches in Arabidopsis thaliana to begin to address these knowledge gaps. Seed coat development is a complex process whereby the integuments of the ovule differentiate into specialized cell types. In Arabidopsis, the outermost layer of cells secretes mucilage into the apoplast and develops a secondary cell wall known as a columella. The layer beneath the epidermis, the palisade, synthesizes a secondary cell wall on its inner tangential side. The innermost layer （the pigmented layer or endothelium） produces proanthocyanidins that condense into tannins and oxidize, giving a brown color to mature seeds. Genetic separation of these cell layers was achieved using the ap2-7 and tt16-1 mutants, where the epidermis/palisade and the endothelium do not develop respectively. This genetic ablation was exploited to examine the developmental programs of these cell types by isolating and collecting seed coats at key tran- sitions during development and performing global gene expression analysis. The data indicate that the developmental programs of the epidermis and the pigmented layer proceed relatively independently. Global expression datasets that can be used for identification of new gene candidates for seed coat development were generated. These dataset provide a comprehensive expression profile for developing seed coats in Arabidopsis, and should provide a useful resource and reference for other seed systems.

关键词： Seed coat microarray APETALA2 TRANSPARENT TESTA16 mucilage pectin secondary cell wall pigmentedlayer proanthocyanidin.

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印度乡村345例成年人中的心血管疾病和危险因素:安得拉邦乡村健康行动

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世界核心医学期刊文摘（心脏病学分册） 2007年第7期3卷 57-58页

作者： Chow C. Cardona M. raju P.k. 韩瑞娟 The george Institute For International Health University of Sydney P.O. Box M210 Missenden Road Sydney 2050Australia

背景：心脏病发作和卒中是印度一些城市人群已然面临的问题，但是目前对乡村心血管疾病和危险因素的了解较少。本研究旨在观察印度乡村安得拉邦的两个村庄中主要心血管危险因素的水平和处理情况以及心血管疾病的患病率。方法：在2002年... 详细信息

背景：心脏病发作和卒中是印度一些城市人群已然面临的问题，但是目前对乡村心血管疾病和危险因素的了解较少。本研究旨在观察印度乡村安得拉邦的两个村庄中主要心血管危险因素的水平和处理情况以及心血管疾病的患病率。方法：在2002年搜集的人口普查名单中，从每个村庄选择根据年龄和性别分层的随机样本进行横断面调查。对各研究对象，由经培训的研究人员负责对调查表进行泰卢固语翻译，完成简要的体格检查，并采集空腹静脉血样。计算人群的平均（或百分数）危险因素水平加权估计值，并报告可信区间，除非有其他特殊说明。结果：收集了来自345例年龄20～90岁成人的数据。家庭平均大小为4．2人，平均家庭收入为约25454印度卢比（580美元）／年。

关键词：心血管危险因素心血管疾病乡村印度成年人危险因素水平健康城市人群

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Performance estimation of bi-directional turbines in wave energy plants

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Journal of Thermal Science 2007年第4期16卷 346-352页

作者： S.Anand V.Jayashankar S.Nagata k.Toyota M.Takao T.Setoguchi Department of Electrical Engineering IIT MadrasIndia IOES Saga UniversityJapan Department of Mechanical Engineering Matsue National College of TechnologyJapan Department of Mechanical Engineering Saga UniversityJapan

Oscillating water column （OWC） based wave energy plants have been designed with several types of bidirectional turbines for converting pneumatic power to shaft power. Impulse turbines with linked guide vanes and fixed guide vanes have been tested at the Indian Wave Energy plant. This was after initial experimentation with Well＇s turbines. In contrast to the Well＇s turbine which has a linear damping characteristic, impulse turbines have non-linear damping. This has an important effect in the overall energy conversion from wave to wire. Optimizing the wave energy plant requires a turbine with linear damping and good efficiency over a broad range of flow coefficient. This work describes how such a design can be made using fixed guide vane impulse turbines. The Indian Wave Energy plant is used as a case study.

关键词： Bidirectional turbine differential pressure flow rate impulse turbine

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