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Experimental Study on Branch and Diffuse Type of Streamers in Leader Restrike of Long Air Gap Discharge

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Plasma Science and Technology 2016年第3期18卷 305-310页

作者：陈赦曾嵘庄池杰周旋丁玉剑 Department of Electrical and Information Engineering Hunan UniversityChangsha 410082China Department of Electrical Engineering Tsinghua UniversityBeijing 100084China China Electric Power Research Institute(CEPRI) Beijing 100192China

One of the main problems in the Ultra High Voltage （UHV） transmission project is to choose the external insulation distance, which requires a deep understanding of the long air gap discharge mechanism. The Leader-streamer propagation is one of most important stages in long air gap discharge. In the conductor-tower lattice configuration, we have measured the voltage, the current on the high voltage side and the electric field in the gap. While the streamer in the Leader-streamer system presented a conical or hyperboloid diffuse shape, the clear branch structure streamer in front of the Leader was firstly observed by a high speed camera in： the experiment. Besides, it is found that the Leader velocity, width and injected charge for the branch type streamer are greater than those of a diffuse type. We propose that the phenomenon results from the high humidity, which was 15.5-16.5 g/m3 in our experiment.

关键词： ultra high voltage long air gap discharge streamer Leader restrike

MLA:A New Mutated Leader Algorithm for Solving Optimization Problems

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Computers, Materials & Continua 2022年第3期70卷 5631-5649页

作者： Fatemeh Ahmadi Zeidabadi Sajjad Amiri Doumari Mohammad Dehghani Zeinab Montazeri Pavel Trojovsky Gaurav Dhiman Department of Mathematics and Computer Sciences Sirjan University of TechnologySirjanIran Graduate of Department of Electrical and Electronics Engineering Shiraz University of TechnologyShirazIran Department of Electrical and Electronics Engineering Shiraz University of TechnologyShirazIran Department of Mathematics Faculty of ScienceUniversity of Hradec Králové50003Hradec KrálovéCzech Republic Department of Computer Science Government Bikram College of CommercePatialaPunjabIndia

Optimization plays an effective role in various disciplines of science and engineering.Optimization problems should either be optimized using the appropriate method(i.e.,minimization or maximization).Optimization algorithms are one of the efficient and effective methods in providing quasioptimal solutions for these type of problems.In this study,a new algorithm called the Mutated Leader Algorithm(MLA)is presented.The main idea in the proposed MLA is to update the members of the algorithm population in the search space based on the guidance of a mutated Leader.In addition to information about the best member of the population,themutated Leader also contains information about the worst member of the population,as well as other normal members of the population.The proposed MLA is mathematically modeled for implementation on optimization problems.A standard set consisting of twenty-three objective functions of different types of unimodal,fixed-dimensional multimodal,and high-dimensional multimodal is used to evaluate the ability of the proposed algorithm in optimization.Also,the results obtained from theMLA are compared with eight well-known algorithms.The results of optimization of objective functions show that the proposed MLA has a high ability to solve various optimization problems.Also,the analysis and comparison of the performance of the proposed MLA against the eight compared algorithms indicates the superiority of the proposed algorithm and ability to provide more suitable quasi-optimal solutions.

关键词： Optimization metaheuristics Leader benchmark objective function

Observations of Dominant Behaviors and Habits of an Effective Leader

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维普期刊数据库

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Observations of Dominant Behaviors and Habits of an Effectiv...

用于社区发现的LPA_LRDC标签传播算法

作者： Ron Drew Stone Center for Performance and ROI

Leadership behavior is at the center of organization performance.Organizations dedicate significant resources to develop Leaders so that work teams will achieve organization goals.Theories abound about the traits, characteristics and behaviors that make for the best Leaders.Since team members and others who work closely with Leaders are in a good position to know the answers, I asked these employees what type of Leader and which Leader behaviors influence them to do the work and stay connected with the organization.The research identified numerous behaviors and habits that facilitate communication, trust, respect, working relationships, and positive performance.These findings are arranged in two guides, each with an array of behaviors.One guide is for building Leadership character and the other is for influencing connection conversations.Both guides are beneficial to Leaders as they engage their team to achieve organization goals.A Leadership workshop is forthcoming that focuses on applying the guides along with tools for Leaders to connect with teams and achieve individual and organization performance goals.

关键词： Connections Respect Trust Leader Behavior Habits Willingness Character Compassion Performance

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小型微型计算机系统 2017年第8期38卷 1746-1750页

作者：徐成林陈志刚黄瑞龙增艳李博周清清邓伊琴中南大学软件学院长沙410075

由于传统的LPA算法,在节点标签更新的顺序以及标签传播过程中存在较大的随机性,给社区发现的准确性和稳定性造成了很大的影响.本文提出LRDC(Leader Rank algorithm considered degree and clustering coefficient)算法并用其来衡量节点... 详细信息

由于传统的LPA算法,在节点标签更新的顺序以及标签传播过程中存在较大的随机性,给社区发现的准确性和稳定性造成了很大的影响.本文提出LRDC(Leader Rank algorithm considered degree and clustering coefficient)算法并用其来衡量节点的重要性,然后按照节点的重要性大小排序作为LPA算法中初始化节点标签的依据,并在标签传播过程中综合考虑节点重要性以及邻居标签的数量提出LPA_LRDC(Label Propagation Algorithm based on LRDC)标签传播社区发现算法.通过在人工和真实的网络数据集上的实验结果表明,本文提出的标签传播社区发现算法能够显著的提高社区发现的准确性和稳定性.

关键词：标签传播 Leader Rank 节点重要性社区划分社区发现

Leader空调：与年轻人越来越来电 004

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Leader空调：与年轻人越来越来电

牵手Z世代，Leader树起“年轻家电”风向标 008

中国电子报

作者：卢梦琪

拒绝枯燥无趣的单线程生活，希望以家为平台去开拓生活的更多可能性，这就是Z世代。正因如此，他们的用风需求极具个性也更加极致：希望在化妆时拥有快速降温的清凉风感;追求在睡觉时享受冷风不直吹的舒适体验;希望为爱宠提供温柔风感... 详细信息

拒绝枯燥无趣的单线程生活，希望以家为平台去开拓生活的更多可能性，这就是Z世代。正因如此，他们的用风需求极具个性也更加极致：希望在化妆时拥有快速降温的清凉风感;追求在睡觉时享受冷风不直吹的舒适体验;希望为爱宠提供温柔风感呵护健康;享受露营时即刻就来的凉爽……

关键词： Leader 年轻人 AWE

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牵手Z世代，Leader树起“年轻家电”风向标

中国电子报

作者：杨鹏岳

近日，亚洲首屈一指的设计产业盛会广州设计周成功落下帷幕。今年，各类品牌与设计通过跨界合作带来惊喜连连。其中，本届唯一参展的时尚家电品牌Leader携手BKA潮流特展成功破圈，捕获了众多Z世代年轻消费群体的“芳心”，由此引发了一... 详细信息

近日，亚洲首屈一指的设计产业盛会广州设计周成功落下帷幕。今年，各类品牌与设计通过跨界合作带来惊喜连连。其中，本届唯一参展的时尚家电品牌Leader携手BKA潮流特展成功破圈，捕获了众多Z世代年轻消费群体的“芳心”，由此引发了一场Z世代潮人家居新风向。 Z世代登上消费?

关键词：家电品牌 Leader 风向标

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基于领导跟随的欠驱动船舶编队跟踪控制

控制工程 2013年第5期20卷 980-983,989页

作者：刘杨刘美杰大连交通大学电气信息学院辽宁大连116028 大连海事大学信息科学技术学院辽宁大连116026 长春师范大学初等教育学院吉林长春130031

针对具有三自由度欠驱动水面船舶编队控制问题,提出一种基于领导跟随(Leader/Follower)结构的欠驱动水面船舶队形跟踪控制方法。当系统接收到队形控制指令,每个欠驱动水面船舶按照自己在编队中的角色进行控制,其中Leader根据任务中的队... 详细信息

针对具有三自由度欠驱动水面船舶编队控制问题,提出一种基于领导跟随(Leader/Follower)结构的欠驱动水面船舶队形跟踪控制方法。当系统接收到队形控制指令,每个欠驱动水面船舶按照自己在编队中的角色进行控制,其中Leader根据任务中的队形指令完成航迹跟踪控制,而Followers则依据Leader的信息和航行中任务中的队形指令完成航迹跟踪控制。在航迹跟踪控制中,根据期望队形任务指令为每个船舶设计需要跟踪的参考路径和速度指令;基于Lyapunov理论和重定义输出方法设计非线性速度控制器和路径跟踪控制器跟踪设计路径和速度指令;稳定性分析证明了队形跟踪误差是一致最终稳定的。仿真结果表明船舶可以跟踪任意期望曲线队形,从而验证了方法的有效性。

关键词：欠驱水面动船舶编队跟踪控制非线性理论 Leader Follower方法

Jinchuan Group Strives To Become A Leader In Non-ferrous Industry Via Overseas Mergers And Acquisitions

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China Nonferrous Metals Monthly 2019年第12期 7-9页

Located in northwestward Gansu Province,Jinchuan Group Co.,Ltd.was established in 1959.So far,it boasts annual capacities of 200,000-ton nickel(ranking the thirdworldwide),1,000,000-ton steel,10,000-ton cobalt(ranking... 详细信息

关键词： Jinchuan Group Leader Acquisitions

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潍坊总部基地,“龙头”昂起

走向世界 2016年第32期 63-65页

作者：崔德文

大到一个国家,小到一个地方,在经济发展中,＂龙头＂的引领作用至为关键——For a country,big or small,a Leader is crucial in its economic growth.沿北海路往北,过青银高速,眼前顿时开阔起来。没有都市的喧嚣,没有机器的轰鸣,一草... 详细信息

大到一个国家,小到一个地方,在经济发展中,＂龙头＂的引领作用至为关键——For a country,big or small,a Leader is crucial in its economic growth.沿北海路往北,过青银高速,眼前顿时开阔起来。没有都市的喧嚣,没有机器的轰鸣,一草一木皆显安逸静谧。中国食品谷、潍坊总部基地、齐鲁农村产权交易中心、中国兽药饲料交易大厦等,在这片土地上聚集、隆起,它们拥有一张共同的名片一一总部经济。

关键词：青银高速兽药饲料产权交易 Leader 经济发展基地建设浙江特色黄河三角洲生态经济区产品发布会