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Morphology and ontogeny of directly differentiating shoot buds and somatic embryos in Santalum album L.

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Journal of Forestry Research 2019年第4期30卷 1179-1189页

作者： Rakhshanda Akhtar anwar Shahzad Plant Biotechnology Section Department of BotanyAligarh Muslim University

Santalum album *** a commercially important tree that yields essential oil of high medicinal *** research through organogenesis and embryogenesis has been documented but no report depicts comparative ontogeny of directly differentiating shoot buds(SB)and somatic embryos(SE).In the present study aseptic seedling derived hypocotyl segments(HC)and hypocotyl+root junction(HC+R)were used to induce SBs and SEs,*** differences between the structures were confirmed using scanning electron microscopy and histological *** medium containing 6-benzyladenine or BA(2.5μM)produced highest number of direct SB,while MS+BA(7.5μM)proved suitable for higher frequency of SE *** differentiating structures attained growth when transferred to MS medium containing a combination of BA and anaphthalene acetic acid or silver nitrate(AgNO3).A combination of indole-3-butyric acid and silver nitrate(AgNO3)in half-strength woody plant medium and lesser osmotic concentration(2%sucrose),induced rhizogenesis.

关键词： Direct somatic embryos Emblings Histology Hypocotyl Ontogenic

Enhancement in energy product in Sm-Co/Fe exchange coupled magnetic layers with molybdenum interlayers

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Journal of Rare Earths 2010年第2期28卷 274-276页

作者： Furrukh Shahzad Saadat anwar Siddiqi Centre for Solid State Physics University of the Punjab School of Physics and Microelectronics Shandong University

Trilayers of Sm-Co/Mo/Fe were deposited by DC and RF magnetron sputtering on Si(100) substrate at 650 °*** of very thin Mo interlayers on energy product of magnetic layers was *** the samples showed strong exchange coupling and single phase *** increasing Mo interlayer thickness,we observed oscillating behavior of saturation magnetization and energy *** rise in energy product was observed as 22% for 0.3 nm Mo interlayer as compared to sample without Mo interlayer.

关键词： exchange spring magnet nanocomposite (BH)max product rare earths

Optimal Location and Sizing of Conglomerate DG-FACTS using an Artificial Neural Network and Heuristic Probability Distribution Methodology for Modern Power System Operations

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Protection and Control of Modern Power Systems 2022年第1期7卷 124-148页

作者： anwar Shahzad Siddiqui Prashant Department of Electrical Engineering Faculty of Engineering&TechnologyJamia Millia IslamiaJamia NagarOkhlaNew Delhi 110025India

In existing power system networks,the positioning and sizing of multi-DG is critical at the optimum locations for effective energy *** optimal power flow is assessed using the NR method(without DG)in which performance parameters such as real power loss,accuracy,selectivity and MSE are obtained,but in an undesirable *** meet load demand;multi-DGs are placed and their optimal locations are assessed by the proposed heuristic probability distribution methodology and an ANN because existing techniques provides poor performance parameters for selecting the location and sizing of *** optimal positions of multi-DGs are estimated in terms of performance parameters including real power loss of transmission network,accuracy,selectivity and MSE,while the performance parameters obtained with the ANN are better than the heuristic ***,the sizing of multi-DGs is evaluated in relation to active and reactive *** is found that that sizes of multi-DGs are smaller with ANN than with heuristic *** is preferable to connect the buses having lowest real power losses with the smallest *** performance analysis is tested in the standard IEEE 9-bus and IEEE 57-bus systems on *** improve the distortion level in real and reactive power,multi-FACTS namely TCSC,TSC and STATCOM are *** switching of TCSC and TSC is done by SPWM while STATCOM switching is controlled with *** locations of multi-FACTS devices are chosen for buses having larger distortion and the sizing of multi-FACTS devices is also optimally *** application of multi-FACTS devices helps to improve power quality and fulfill load demand with minimal size in order to make the system economical.

关键词： DG Location Sizing FACTS ANN ANFIS

An approach to Iocational marginal price based zonal congestion management in deregulated electricity market

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Frontiers in Energy 2016年第2期10卷 240-248页

作者： Md SARWAR anwar Shahzad SIDDIQUI Department of Electrical Engineering Jamia Millia Islamia (A Central University) New Delhi 110025 India

Congestion of transmission line is a vital issue and its management pose a technical challenge in power system deregulation. Congestion occurs in deregulated electricity market when transmission capacity is not sufficient to simultaneously accommodate all constraints of power transmission through a line. Therefore, to manage congestion, a locational marginal price （LMP） based zonal congestion management approach in a deregulated elec- tricity market has been proposed in this paper. As LMP is an economic indicator and its difference between two buses across a transmission line provides the measure of the degree of congestion, therefore, it is efficiently and reliably used in deregulated electricity market for conges- tion management. This paper utilizes the difference of LMP across a transmission line to categorize various congestion zones in the system. After the identification of congestion zones, distributed generation is optimally placed in most congestion sensitive zones using LMP difference in order to manage congestion. The performance of the proposed methodology has been tested on the IEEE 14-bus system and IEEE 57-bus system.

关键词： locational marginal price (LMP) distributed generation pool market deregulated electricity market,congestion management

巴尔鲁克山国家级自然保护区的朽木生地衣群落结构特征及其多样性

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东北林业大学学报 2024年第6期52卷 43-50页

作者：热汗古丽·买买提艾力艾尼瓦尔·吐米尔新疆大学乌鲁木齐830046

根据对新疆巴尔鲁克山国家级自然保护区朽木生地衣群落18个样点(20 m×20 m)调查的数据,以各地衣种的盖度为指标结合双向指示种分析方法(TWINSPAN)和除趋势对应分析法(DCA),对保护区朽木生地衣群落进行数量分类并分析了群落结构特征及... 详细信息

根据对新疆巴尔鲁克山国家级自然保护区朽木生地衣群落18个样点(20 m×20 m)调查的数据,以各地衣种的盖度为指标结合双向指示种分析方法(TWINSPAN)和除趋势对应分析法(DCA),对保护区朽木生地衣群落进行数量分类并分析了群落结构特征及其多样性和相似性。采用典范对应分析法(CCA)对各群落的物种分布格局与环境因子的关系进行了探讨。结果表明:TWINSPAN分析和DCA排序将分布在巴尔鲁克山自然保护区的20种朽木生地衣分为以下4个群落。群落1——矮石蕊(Cladonia humilis(With.)***)+犬地卷(Peltigera aphthosa(L.)Willd.)群落;群落2——喇叭粉石蕊(Cladonia chlorophaea(Floex Sommerf.)Spreng.)+土星猫耳衣(Leptogium saturninum(Dicks.)Nyl.)+枪石蕊(Cladonia coniocreae(Flk.)Spreng.)群落;群落3——平盘软地卷(Peltigera elisabethae Gyeln.)+犬地卷+多指地卷(Peltigera polydactyla(Neck.)Hoffm.)群落;群落4——膜地卷(Peltigera membranacea(Ach.)Nyl.)+喇叭粉石蕊+分指地卷(Peltigera didactyla(With.)***.)群落。物种多样性以群落2最大为3.478;群落1最小为2.716;群落2和群落4间的相似性最高为0.856,群落1和群落3相似性系数最低为0.434。朽木生地衣的分布与朽木树种具有专一性,分布在雪岭云杉上的地衣种类最多。CCA排序结果反映,该地区朽木生地衣的分布与森林植被郁闭度、光照强度、朽木腐蚀度的影响较大,而与朽木直径大小、朽木pH等因素的影响不大。

关键词：朽木生地衣群落分类多样性巴尔鲁克山中国新疆

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遮阴对莲雾光合特性的影响研究

中国果树 2024年第10期 99-106页

作者：孙东宇魏冬胡彩珠 Ali anwar 杨胤延杜允琪蔡昕成周碧燕农业农村部华南地区园艺作物生物学与种质创制重点实验室华南农业大学园艺学院广东广州510642

遮阴是莲雾产期调节的关键技术,但遮阴对莲雾的生长发育和光合特性的影响尚需进行深入研究。以印度红莲雾为试材进行70%遮阴率处理,定期统计新梢长度和新梢生长率,并测定叶片净光合速率、环境温度、叶片温度、气孔导度、蒸腾速率和胞间C... 详细信息

遮阴是莲雾产期调节的关键技术,但遮阴对莲雾的生长发育和光合特性的影响尚需进行深入研究。以印度红莲雾为试材进行70%遮阴率处理,定期统计新梢长度和新梢生长率,并测定叶片净光合速率、环境温度、叶片温度、气孔导度、蒸腾速率和胞间CO_(2)浓度等指标。结果表明:遮阴处理显著减少了莲雾新梢长度和新梢生长率,遮阴对不同末梢状态的莲雾新梢长度和新梢生长率的影响也不相同;遮阴可在一定范围内控制莲雾环境温度和叶片温度;遮阴使莲雾植株的光合有效辐射减少,抑制了叶片蒸腾速率和净光合速率,并且减小了叶片气孔导度,降低了胞间CO_(2)浓度。综上所述,莲雾的遮阴促花栽培可以抑制莲雾的营养生长,促进营养积累并有效利用光能,是一种可提高经济效益的栽培技术。

关键词：莲雾遮阴光合特性

TRUSED:A Trust-Based Security Evaluation Scheme for A Distributed Control System

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Computers, Materials & Continua 2023年第2期74卷 4381-4398页

作者： Saqib Ali Raja Waseem anwar Sultan Qaboos University Muscat123Sultanate of OMAN Arab Open University Muscat130Sultanate of OMAN

Distributed control systems(DCS)have revolutionized the communication process and attracted more interest due to their pervasive computing nature(cyber/physical),their monitoring capabilities and the benefits they ***,due to distributed communication,flexible network topologies and lack of central control,the traditional security strategies are inadequate formeeting the unique characteristics ***,malicious and untrustworthy nodes pose a significant threat during the formation of a DCS ***-based secure systems not only monitor and track the behavior of the nodes but also enhance the security by identifying and isolating the malicious node,which reduces the risk and increases network *** this research,we offer TRUSED,a trust-based security evaluation scheme that both,directly and indirectly,estimates each node’s level of trustworthiness,incorporating the cumulative trust *** addition,simulation results show that the proposed technique can effectively identify malicious nodes,determine their node’s trustworthiness rating,and improve the packet delivery ratio.

关键词： Malicious network lifetime risk management security trust untrustworthy

A frequency domain design of PID controller for an AVR system

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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第4期15卷 293-299页

作者： Md Nishat anwar Somnath PAN Department of Electrical Engineering Indian School of Mines

We propose a new proportional-integral-derivative(PID) controller design method for an automatic voltage regulation(AVR) system based on approximate model matching in the frequency domain. The parameters of the PID controller are obtained by approximate frequency response matching between the closed-loop control system and a reference model with the desired specifications. Two low frequency points are required for matching the frequency response, and the design method yields linear algebraic equations, solution of which gives the controller parameters. The effectiveness of the proposed method is demonstrated through examples taken from the literature and comparison with some popular methods.

关键词： Automatic voltage regulation(AVR) PID controller Frequency response matching

MHD flow of a viscous fluid on a nonlinear porous shrinking sheet with homotopy analysis method

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Applied Mathematics and Mechanics(English Edition) 2009年第12期30卷 1569-1578页

作者： S. Nadeem anwar Hussain Department of Mathematics Quaid-i-Azam University

The present paper investigates the magnetohydrodynamic（MHD） flow of a viscous fluid towards a nonlinear porous shrinking *** governing equations are simplified by similarity *** reduced problem is then solved by the homotopy analysis *** pertinent parameters appearing in the problem are discussed graphically and presented in *** is found that the shrinking solutions exist in the presence of *** is also observed from the tables that the solutions for f（0） with different values of parameters are convergent.

关键词： MHD flow stagnation flow shrinking sheet homotopy analysis method