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C0 and ge0-Semigroups Methods for Asymptotical Stability of Singular Distributed Parameter Systems

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C0 and GE0-Semigroups Methods for Asymptotical Stability of ...

第三十届中国控制会议

作者： LI Shaojie~1,ge zhaoqiang~2 1.Faculty of Science,Shaanxi University of Science and Technology,Xi’an 710021,P.R.China 2.Faculty of Science,Xi’an Jiaotong University,Xi’an 710049,P.R.China

Asymptotical stability by feedback control for a class of singular distributed parameter system is discussed via the C and ge-semigroups theories in Hilbert *** feedback control concerning the singular distributed parameter system in Hilbert space is founded under certain conditions by using the pole assignment result of the linear system theory in Euclidean space.

关键词： Asymptotical stability Singular distributed parameter system Co-semigroup ge0-semigroup

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大电网调度稳态自适应巡航场景架构

电力系统自动化 2019年第22期43卷 179-186页

作者：姚建国王珂许丹葛朝强吴炳祥杨胜春中国电力科学研究院有限公司(南京) 江苏省南京市210003 国家电网华东电力调控分中心上海市200210 南瑞集团有限公司(国网电力科学研究院有限公司) 江苏省南京市211106

电力调度控制中心作为电网运行控制的指挥中枢和"决策大脑",其自动化和智能化程度亟待提升。在此背景下,文中提出新一代电网调度稳态自适应巡航场景架构,在横向上将感知、评估、决策和控制等功能环节灵活组合和智能联动,在纵向上以任务... 详细信息

电力调度控制中心作为电网运行控制的指挥中枢和"决策大脑",其自动化和智能化程度亟待提升。在此背景下,文中提出新一代电网调度稳态自适应巡航场景架构,在横向上将感知、评估、决策和控制等功能环节灵活组合和智能联动,在纵向上以任务为导向实现多级调度的协同控制。在介绍新一代电网调控系统场景理念的基础上,设计了大电网调度稳态自适应巡航场景的相关功能模块。原型系统上的试运行验证了设计的合理性。

关键词：大电网调度稳态自适应巡航场景功能架构智能联动

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单元串联多电平变频器脉宽调制方法分析

防爆电机 2007年第4期42卷 11-13,21页

作者：孙建明欧阳红林葛照强湖南大学电气与信息工程学院湖南长沙410082

对多电平变频器不同的拓扑结构进行比较,研究分析单元串联多电平变频器的几种不同的调制策略。采用载波移相控制,通过Matlab仿真,分析调制比M变化时对输出相电压、线电压的影响以及谐波总畸变率的变化。

关键词：高压变频器多电平单元串联载波移相

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不确定广义分布参数系统的指数稳定性

电气工程与自动化（中英文版） 2015年第3期4卷 30-34页

作者：葛照强西安交通大学应用数学系陕西西安710049

在实Hilbert空间中应用算子半群理论和线性算子不等式研究不确定广义分布参数系统的鲁棒指数稳定性问题.给出了不确定广义分布参数系统鲁棒指数稳定的充分条件.

关键词：不确定广义分布参数系统鲁棒指数稳定算子半群理论线性算子不等式实Hilbert空间

电网调控实时数据平台体系架构及关键技术研究与应用

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电力系统自动化 2019年第22期43卷 157-164页

作者：许洪强孙世明葛朝强屈刚孙云枫王兴志孙文彦国家电网有限公司国家电力调度控制中心北京市100031 南瑞集团有限公司(国网电力科学研究院有限公司) 江苏省南京市211106 国电南瑞科技股份有限公司江苏省南京市211106 智能电网保护和运行控制国家重点实验室江苏省南京市211106 国家电网有限公司华东分部上海市200120

一体化运行的互联大电网对现有调度自动化系统实时数据的全局性和实时性等提出了新的挑战,文中提出了电网调控实时数据平台体系架构和建设目标原则。在此基础上,研究了电网模型在线同步、分布式数据汇集与处理、大规模并行状态估计、实... 详细信息

一体化运行的互联大电网对现有调度自动化系统实时数据的全局性和实时性等提出了新的挑战,文中提出了电网调控实时数据平台体系架构和建设目标原则。在此基础上,研究了电网模型在线同步、分布式数据汇集与处理、大规模并行状态估计、实时数据统一服务等关键技术,实现了基于模型自动同步免维护下的全网实时数据单点采集、全网共享。研发的电网调控实时数据平台在国分调控中心试点建设,应用结果表明,所提技术方案提高了实时数据汇集的全局性、实时性和运维效率,能够为电网分析决策应用提供全面、实时、准确的全网实时数据和状态估计数据断面。

关键词：实时数据平台原始报文汇集电网模型在线同步分布式数据处理并行状态估计实时数据统一服务

An Algorithm for Feedback Stability of the Second Order Singular Control System

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An Algorithm for Feedback Stability of the Second Order Sing...

第三十届中国控制会议

作者： LIU Feng~1,SHI Guodong~2,ge zhaoqiang~3,WANG Jiangshu~1 1.School of Mathematics and Physics,Jiangsu Teachers University of Technology,Changzhou,213001,P.R.China 2.School of Information Science and Engineering,Changzhou University,Changzhou,213164,P.R.China 3.Department of Applied Mathematics,Xi''an Jiaotong University,Xi''an 710049,P.R.China

＜正＞Feedback stability problem of the second order singular control system is discussed by sub-negative definite matrix, generalized left inverse of matrix and separation principle,a judgment criterion for feedback stability is given,and a practical algorithm of seeking feedback control law is putted *** result and algorithm are important for studying control synthesis problem of singular system.

关键词： Second order singular control system Feedback stability Sub-negative definite matrix generalized left inverse of matrix Separation principle

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跑合方法对斜盘柱塞马达总效率影响研究

机床与液压 2024年第5期52卷 161-168页

作者：高伟王兆强王金铂王小强葛志伟孙令涛董壮壮上海工程技术大学机械与汽车工程学院上海201620 青岛力克川液压机械有限公司山东青岛266109 上海船舶设备研究所上海200030 上海海岳液压机电工程有限公司上海201620 上海电气液压气动有限公司上海200237

针对跑合方法对斜盘柱塞马达总效率的影响,通过分析影响马达总效率的因素,测试了5台新装配的马达,分为3组试验,分别分析了只进行正转或者反转跑合对于总效率的影响;只进行大排量或者小排量跑合对于总效率的影响;大小排量下正转与反转全... 详细信息

针对跑合方法对斜盘柱塞马达总效率的影响,通过分析影响马达总效率的因素,测试了5台新装配的马达,分为3组试验,分别分析了只进行正转或者反转跑合对于总效率的影响;只进行大排量或者小排量跑合对于总效率的影响;大小排量下正转与反转全面进行跑合对于总效率的影响。结果发现:在此试验方法下,若只进行正转或者反转跑合,一段时间后正反转总效率存在偏差,偏差值2%~3%;若只进行大排量正反转跑合,一段时间后大排量下总效率达到最大值,而小排量下总效率略小于最大值,差值小于1%,若只进行小排量正反转跑合,结果相反;若进行大小排量下正转与反转全面跑合,跑合12 min后,总效率基本接近最大值,跑合24 min后,总效率已趋于平稳。因此,建议出厂试验测试总效率前,需要按照JB/T 10829—2008《液压马达》行业标准跑合的方法,进行大小排量下正转与反转全面的跑合,跑合总时间不低于12 min,若想测出更加精准的总效率,跑合总时间不低于24 min,不同马达可能存在差异。

关键词：柱塞马达总效率跑合方法

Alpha-2-macroglobulin as a radioprotective agent: a review

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Chinese Journal of Cancer Research 2014年第5期26卷 611-621页

作者： Xueying Chen Xiangbo Kong zhaoqiang Zhang Wei Chen Jieyu Chen Huanyang Li Wanting Cao Yaping ge Silian Fang Department of Oral and Maxillofacial Surgery The Sixth Affiliated Hospital of Sun Yat-Sen University Department of Periodontology Sun Yat-Sen Memorial HospitalSun Yat-Sen University Department of Stomatology Zhuhai HospitalGuangdong Provincial Hospital of Traditional Chinese Medical

Radiation is an important modality in cancer treatment, and eighty percent of cancer patients need radiotherapy at some point during their clinical management. However, radiation-induced damage to normal tissues restricts the therapeutic doses of radiation that can be delivered to tumours and thereby limits the effectiveness of the treatment. The use of radioprotectors represents an obvious strategy to obtain better tumour control using a higher dose in radiotherapy. However, most of the synthetic radioprotective compounds studied have shown inadequate clinical efficacy owing to their inherent toxicity and high cost. Hence, the development of radioprotective agents with lower toxicity and an extended window of protection has attracted a great deal of attention, and the identification of alternative agents that are less toxic and highly effective is an absolute necessity. Recent studies have shown that alpha-2-macroglobulin（α2M） possesses radioprotective effects. α2M is a tetrameric, disulfide-rich plasma glycoprotein that functions as a nonselective inhibitor of different types of non-specific proteases and as a carrier of cytokines, growth factors, and hormones. α2M induces protein factors whose interplay underlies radioprotection, which supports the idea that α2M is the central effector of natural radioprotection in the rat. Pretreatment with α2M has also induced a significant reduction of irradiation-induced DNA damage and the complete restoration of liver and body weight. Mihailovi？ et al. concluded that the radioprotection provided by α2M was in part mediated through cytoprotection of new blood cells produced in the bone marrow; these authors also indicated that an important aspect of the radioprotective effect of amifostine was the result of the induction of the endogenous cytoprotective capability of α2M. The radioprotective effects of α2M are possibly due to antioxidant, antifibrosis, and anti-inflammatory functions, as well as the maintenance of homeostasis

关键词： Alpha-2-macroglobulin(α 2 M) ionising radiation radioprotection radiation-induced fibrosis mechanism

Efficient Splitting of Trans-/Cis-Olefins Using an Anion-Pillared Ultramicroporous Metal-Organic Framework with Guest-Adaptive Pore Channels

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Engineering 2022年第4期8卷 80-86页

作者： zhaoqiang Zhang Xili Cui Xiaoming Jiang Qi Ding Jiyu Cui Yuanbin Zhang Youssef Belmabkhout Karim Adil Mohamed Eddaoudi Huabin Xing Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Advanced Membranes and Porous Materials Center King Abdullah University of Science and TechnologyThuwal 23955Saudi Arabia

Trans-/cis-olefin isomers play a vital role in the petrochemical *** paucity of energy-efficient technologies for their splitting is mainly due to the similarities of their physicochemical ***,two new tailor-made anion-pillared ultramicroporous metal–organic frameworks(MOFs),ZU-36-Ni and ZU-36-Fe(geFSIX-3-Ni and geFSIX-3-Fe)are reported for the first time for the efficient trans-/cis-2-butene(trans-/cis-C_(4)H_(8))mixture splitting by enhanced molecular ***,ZU-36-Ni unexpectedly exhibited smart guest-adaptive pore channels for trapping trans-C_(4)H_(8)with a remarkable adsorption capacity(2.45 mmol∙g^(−1))while effectively rejecting cis-C_(4)H_(8)with a high purity of 99.99%.The dispersion-corrected density functional theory(DFT-D)calculation suggested that the guest-adaptive behavior of ZU-36-Ni in response to trans-C_(4)H_(8)is derived from the organic linker rotation and the optimal pore dimensions,which not only improve the favorable adsorption/diffusion of trans-C_(4)H_(8)with optimal host–guest interactions,but also enhance the size-exclusion of cis-C_(4)H_(8).This work opens a new avenue for pore engineering in advanced smart or adaptive porous materials for specific applications involving guest molecular recognition.

关键词： Adsorption and separation Trans-/cis-butene Ultramicroporous metal-organic frameworks Pore engineering Guest-adaptive