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Coupling Characteristics and Control of Dual Mechanical Port Machine with Spoke Type Permanent Magnet Arrangement

Chinese Journal of Mechanical Engineering 2014年第6期27卷 1186-1202页

作者： zhuang Xingming SONG Qiang wen Xuhui ZHAO Feng FAN Tao National Engineering Laboratory for Electric Vehicles Beijing Institute of Technology Institute of Electrical Engineering Chinese Academy of Sciences

Dual mechanical port machine（DMPM）, as a novel electromechanical energy conversion device, has attracted widespread attention. DMPM with spoke type permanent magnet arrangements（STPM-DMPM）, which is one of several types of DMPM, has been of interest recently. The unique coupling characteristics of STPM-DMPM are beneficial to improving system performance, but these same characteristics increase the difficulties of control. Now there has been little research about the control of STPM-DMPM, and this has hindered its practical application. Based on a mathematical model of STPM-DMPM, the coupling characteristics and the merits and demerits of such devices are analyzed as applied to a hybrid system. The control strategies for improving the disadvantages and for utilizing the advantage of coupling are researched. In order to weaken the interaction effect of torque outputs in the inner motor and the outer motor that results from coupling in STPM-DMPM, a decoupling control method based on equivalent current control is proposed, and independent torque control for the inner motor and outer motor is achieved. In order to solve address the problem of adequately utilization of coupling, minimizing the overall copper loss of the inner motor and the outer motor of STPM-DMPM is taken as the optimization objective for optimal control, and the purpose of utilizing the coupling adequately and reasonably is achieved. The verification tests of the proposed decoupling control and optimal control strategies are carried out on a prototype STPM-DMPM, and the experimental results show that the interaction effect of torque outputs in the inner motor and the outer motor can be markedly weakened through use of the control method. The overall copper loss of the inner motor and the outer motor can be markedly reduced through use of the optimal control method, while the power output remains unchanged. A breakthrough in the control problem of STPM-DMPM is accomplished by combining the control methods. Good performance in the control of STPM-DMPM

关键词： dual mechanical port machine spoke type permanent magnet arrangement coupling characteristics decoupling control optimal control

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Self-adaptive learning based discrete differential evolution algorithm for solving CJWTA problem

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Journal of Systems Engineering and Electronics 2014年第1期25卷 59-68页

作者： Yu Xue Yi zhuang Tianquan Ni Siru Ni Xuezhi wen College of Computer Science and Technology Nanjing University of Aeronautics and Astronautics School of Computer and Software Nanjing University of Information Science and Technology No.723 Research Institute of China Shipbuilding Industry Corporation

Cooperative jamming weapon-target assignment （CJWTA） problem is a key issue in electronic countermeasures （ECM）. Some symbols which relevant to the CJWTA are defined firstly. Then, a formulation of jamming fitness is presented. Final y, a model of the CJWTA problem is constructed. In order to solve the CJWTA problem efficiently, a self-adaptive learning based discrete differential evolution （SLDDE） algorithm is proposed by introduc-ing a self-adaptive learning mechanism into the traditional discrete differential evolution algorithm. The SLDDE algorithm steers four candidate solution generation strategies simultaneously in the framework of the self-adaptive learning mechanism. Computa-tional simulations are conducted on ten test instances of CJWTA problem. The experimental results demonstrate that the proposed SLDDE algorithm not only can generate better results than only one strategy based discrete differential algorithms, but also outper-forms two algorithms which are proposed recently for the weapon-target assignment problems.

关键词： global optimization self-adaptive discrete differentialevolution weapon-target assignment （WTA） cooperative jamming.

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High-performance Li-S battery cathode with catalyst-like carbon nanotube-MoP promoting polysulfide redox

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Nano Research 2017年第11期10卷 3698-3705页

作者： Yingying Mi wen Liu Xiaolin Li Julia zhuang Henghui Zhou Hailiang Wang Department of Chemistry and Energy Sciences Institute Yale University West Haven CT 06516 USA College of Chemistry and Molecular Engineering Peking University Beijing 100871 China College of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 China Department of Chemical and Environmental Engineering Yale University New Haven CT 06520 USA

Despite promising characteristics such as high specific energy and low cost,current Li-S batteries fall short in cycle life.Improving the cycling stability of S cathodes requires immobilizing the lithium polysulfide （LPS） intermediates as well as accelerating their redox kinetics.Although many materials have been explored for trapping LPS,the ability to promote LPS redox has attracted much less attention.Here,we report for the first time on transition metal phosphides as effective host materials to enhance both LPS adsorption and redox.Integrating MoP-nanoparticle-decorated carbon nanotubes with S deposited on graphene oxide,we enable Li-S battery cathodes with substantially improved cycling stability and rate capability.Capacity decay rates as low as 0.017% per cycle over 1,000 cycles can be realized.Stable and high areal capacity （〉 3 mAh＆#183;cm-2） can be achieved under high mass loading conditions.Comparable electrochemical performance can also be achieved with analogous material structures based on CoP,demonstrating the potential of metal phosphides for long-cycle Li-S batteries.

关键词： lithium-sulfur battery,metal phosphide,lithium polysulfide,long cycle

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Proteomic and phosphoproteomic analysis reveal threonine deficiency increases hepatic lipid deposition in Pekin ducks via reducing STAT phosphorylation

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Animal Nutrition 2023年第2期13卷 249-260页

作者： Yong Jiang Zhong zhuang wenqia Jia Zhiguo wen Ming Xie Hao Bai Yulin Bi Zhixiu Wang Guobin Chang Shuisheng Hou Guohong Chen College of Animal Science and Technology Yangzhou UniversityYangzhou 225009China State Key Laboratory of Animal Nutrition Key Laboratory of Animal(Poultry)Genetics Breeding and ReproductionMinistry of Agriculture and Rural AffairsInstitute of Animal SciencesChinese Academy of Agricultural SciencesBeijing 100193China Joint International Research Laboratory of Agriculture and Agri-Product Safety the Ministry of Education of ChinaInstitutes of Agricultural Science and Technology DevelopmentYangzhou UniversityYangzhou 225009China Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs Institute of Feed ResearchChinese Academy of Agricultural SciencesBeijing 100081China

Dietary threonine(Thr)deficiency enhances triglyceride(TG)deposition in the liver of Pekin ducks,which injures hepatic function and impairs growth performance.However,the underlying molecular mechanisms remain unclear.In the present study,we investigated the effects of dietary Thr deficiency on the expressions of proteins and phosphoproteins in liver of Pekin ducks,to identify the underlying molecular changes.A total of 300 one-day-old ducklings were divided into 3 groups with 10 replicates of 10 birds.All ducks were fed corn-wheat-peanut meal diets containing 0.46%,0.71%,and 0.96%Thr,respectively,from 1 to 21 days of age.Growth performance,serum parameters,hepatic TG content,and expression of genes involved in lipid metabolism of Pekin ducks were determined.A Thr deficiency group(Thr-D,0.46%Thr)and a Thr sufficiency group(Thr-S,0.71%Thr)were selected for subsequent proteomic and phosphoproteomic analysis.The results showed that Thr-D reduced the growth performance(P<0.001),and increased the plasma concentrations of cholesterol,high-density lipoprotein cholesterol,low-density lipoprotein cholesterol,and hepatic TG(P<0.05).Thr-D increased gene expression related to fatty acid and TG synthesis(P<0.05).A total of 176 proteins and 259 phosphosites(containing 198 phosphoproteins)were observed to be differentially expressed as a result of Thr-D.The upregulated proteins were enriched in the pathway related to amino acid metabolism,peroxisome.The down-regulated proteins were enriched in linolenic and arachidonic acid metabolism,and the Janus kinase-signal transducer and activator of transcription(JAK-STAT)signaling pathway.The upregulated phos-phoproteins were enriched in the pathways related to fatty acid biosynthesis,fructose and mannose metabolism,and glycolysis/gluconeogenesis.Thr-D reduced the phosphorylation of STAT1 at S729 and STAT3 at S728,and expression of STAT5B.In contrast,Thr-D increased non-receptor tyrosine-protein kinase(TYK2)expression and STAT1 phosphorylation at S649.Taken together,dietary Thr-D increa

关键词： Threonine deficiency Triglyceride accumulation Proteomic Phosphoproteomic Pekin duck

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Rapamycin induces differentiation of glioma stem/progenitor cells by activating autophagy

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Chinese Journal of Cancer 2011年第10期30卷 712-720页

作者： wen-Zhuo zhuang Lin-Mei Long wen-Jun Ji Zhong-Qin Liang Department of Pharmacology Medical School of Soochow University Suzhou Jiangsu 215123 P R. China

Glioma stem/progenitor cells(GSPCs) are considered to be responsible for the initiation,propagation,and recurrence of gliomas.The factors determining their differentiation remain poorly defined.Accumulating evidences indicate that alterations in autophagy may influence cell fate during mammalian development and differentiation.Here,we investigated the role of autophagy in GSPC differentiation.SU-2 cells were treated with rapamycin,3-methyladenine(3-MA) plus rapamycin,E64d plus rapamycin,or untreated as control.SU-2 cell xenografts in nude mice were treated with rapamycin or 3-MA plus rapamycin,or untreated as control.Western blotting and immunocytochemistry showed up-regulation of microtubule-associated protein light chain-3(LC3)-II in rapamycin-treated cells.The neurosphere formation rate and the number of cells in each neurosphere were significantly lower in the rapamycin treatment group than in other groups.Real-time PCR and immunocytochemistry showed down-regulation of stem/progenitor cell markers and up-regulation of differentiation markers in rapamycin-treated cells.Transmission electron microscopy revealed autophagy activation in rapamycin-treated tumor cells in mice.Immunohistochemistry revealed decreased Nestin-positive cells and increased GFAP-positive cells in rapamycin-treated tumor sections.These results indicate that rapamycin induces differentiation of GSPCs by activating autophagy.

关键词：雷帕霉素分化细胞脑胶质瘤祖细胞自噬激活诱导 Western印迹

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Atropine can induce autophagy independent of the M3 muscarinic acetylcholine receptor

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Traditional Medicine Research 2024年第7期9卷 35-41页

作者： Hai-Chang Yin wen-Zhu zhuang Xin-Jie Jiang Di Liu Postdoctoral Research Workstation Heilongjiang Academy of Agricultural SciencesHarbin 150069China. College of Life Science and Agriculture Forestry Qiqihar UniversityQiqihar 161006China.

Background: No other effects of atropine other than as an antagonist of muscarinic acetylcholine receptor (mAChR) have been found. Methods: In this study, human kidneyepithelial cells were treated with different physiological regulators. Results: Subsequently, it was found that atropine could significantly induce autophagy as demonstrated by the appearance of autophagosome-like double- or single-membrane vesicles in the cytoplasm ofhost cells and the number of GFP-LC3 dots. In addition, increased conversion of the autophagy marker protein LC3-I and LC3-II and increased p62/SQSTM1 indicatedincomplete autophagy. In addition, atropine induced autophagosome levels in a dose-dependent manner within a certain concentration range in human kidney epithelial cells. In atropine-treated mouse skeletal muscle cells containing nicotinic acetylcholinereceptors and rat cardiac muscle cells containing mAchR, atropine induced autophagy in mouse skeletal muscle cells but not in rat cardiac muscle cells. Furthermore, atropine did not induce autophagy in tissue cells containing mAchR in vivo but did in tissue cells not containing mAchR. Conclusion: This study expands the application and understanding of atropine’s action mechanism in the field of medicine.

关键词： autophagy atropine acetylcholine receptor cells

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An active vibration control method based on energy-fuzzy for cantilever structures excited by aerodynamic loads

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Chinese Journal of Aeronautics 2021年第9期34卷 224-235页

作者： Wei LIU Weixiao LIU Mengde ZHOU Linlin TANG Qinqin WANG Zhengquan wen zhuang YAO Xiaojing YUAN Key Laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education Dalian University of TechnologyDalian 116024China AVIC Aerodynamics Research Institute Shenyang 110034China

In wind tunnel tests for the full-model fixed with sting,the low structural damping of the long cantilever sting results in destructive low-frequency and large-amplitude vibration.In order to obtain high-quality wind tunnel test data and ensure the safety of wind tunnel tests,an energy-fuzzy adaptive PD(Proportion Differentiation)control method is proposed.This method is used for active vibration control of a cantilever structure under variable aerodynamic load excitation,and real-time adjustment of parameters is achieved according to the system characteristics of vibration energy.Meanwhile,a real-time method is proposed to estimate the real-time vibration energy through the vibration acceleration signal,and the average exciting power of aerodynamic load is obtained by deducting the part of the power contributed by the vibration suppressor from the total power.Furthermore,an energy-fuzzy adaptive PD controller is proposed to achieve adaptive control to the changes of the aerodynamic load.Besides,the subsonic and transonic experiments were carried out in wind tunnel,the results revealed that comparing to fixed gain PD controllers,the energy-fuzzy adaptive PD controller maintains higher performance.

关键词： Active vibration control Cantilever structure Fuzzy logic PD controller Vibration energy analysis

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Bronchial artery embolization for hemoptysis:A systematic review and meta-analysis

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Journal of Interventional Medicine 2021年第4期4卷 172-180页

作者： Zhiyuan Zheng Zhiquan zhuang Minjie Yang Jianjun Luo wen Zhang Zhiping Yan Xiaolin Wang Department of Interventional Radiology Zhongshan HospitalFudan University180 Fenglin RoadShanghai200032China Shanghai Institute of Medical Imaging ShanghaiChina

Objective:To assess the safety and efficacy of bronchial artery embolization(BAE)for hemoptysis.Methods and materials:Databases with articles published in English,including Pubmed,Embase,Web of science and Chochrane library,were comprehensively searched to get accurate,up-to-date and sufficient literature about BAE for hemoptysis until March 2020.The technical success rates,immediate control rates,recurrence rates,mortality rates,and total complication rates(minor and major complication rates)extracted from the articles were pooled to estimate and assess the efficacy and safety of BAE using random-effect and fixed-effect models.Results:21 articles published between 2008 and 2019,which include a total of 2511 patients,were studied to evaluate the safety and efficacy of BAE.The technical success and immediate control rates are 99.9%(95%CI:99%-100%)and 99.5%(95%CI:97.8%-99.2%),respectively.This study showed hemoptysis recurrence in 23.7%(95%CI:18.5%-28.9%)with a mortality rate of 2%(95%CI:0-3%).Additionally,the assessment of complications revealed a total complication rate of 13.4%(95%CI:7.6-19.2%),in which 0.2%(95%CI:0.2-0.4%)were major complications and 10%(95%CI:4.7-9.6%)were minor complications.Conclusion:BAE is an effective,safe,and feasible procedure with a low complication rate for hemoptysis patients.However,recurrence of hemoptysis is still at high risk after BAE due to different underlying diseases.

关键词： BAE Hemoptysis Efficacy Safety

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城市隧道同时侧穿桩基和下穿既有隧道变形分析

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辽宁工程技术大学学报（自然科学版） 2023年第6期42卷 664-670页

作者：李金奎庄文大连大学建筑工程学院辽宁大连116622 大连大学复杂结构系统灾害预测防治重点实验室辽宁大连116622

为研究城市隧道同时侧穿桩基、下穿隧道的受力与变形规律,依托大连东港商务区220kV电力隧道主体施工工程,通过单桩水平位移方程与经验参数修正公式、Peck公式相结合,对桩基、既有隧道变形进行理论分析和计算,并采用数值模拟试验和现场... 详细信息

为研究城市隧道同时侧穿桩基、下穿隧道的受力与变形规律,依托大连东港商务区220kV电力隧道主体施工工程,通过单桩水平位移方程与经验参数修正公式、Peck公式相结合,对桩基、既有隧道变形进行理论分析和计算,并采用数值模拟试验和现场实测验证。分析了电力隧道开挖对桩基位移及受力的影响规律,研究了既有隧道的沉降变形。研究结果表明:桩基水平位移及桩端沉降均随电力隧道施工的进行不断增加;随着桩身深度增加,桩身轴力先增大后减小;随着隧道与桩间距增加,桩身轴力先增大后趋于稳定;桩身弯矩在不同深度内均随隧道与桩距离增大而增大,但增幅较小;既有隧道的存在也会对桩基产生变形影响;数值模拟得到的既有隧道最大沉降位移为7.34mm。数值模拟结果与理论计算及现场实测结果一致。研究结论为同时穿越的类似工程提供参考。

关键词：电力隧道同时穿越桩基既有隧道

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国际贸易、交通基础设施与区域经济长期增长--基于近现代中国的研究

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经济科学 2024年第1期 208-231页

作者：陈雯庄嘉霖厦门大学经济学院中南财经政法大学财政税务学院

本文基于中国近代出口与近现代铁路建设的历史经验,探讨国际贸易与交通基础设施对区域经济长期增长的综合影响。理论与实证研究发现:近代出口贸易与铁路建设均能够显著促进区域人口长期增长,两者的影响具有替代性,该替代性在邻近历史口... 详细信息

本文基于中国近代出口与近现代铁路建设的历史经验,探讨国际贸易与交通基础设施对区域经济长期增长的综合影响。理论与实证研究发现:近代出口贸易与铁路建设均能够显著促进区域人口长期增长,两者的影响具有替代性,该替代性在邻近历史口岸或较早开通铁路的地区相对较强。进一步分析表明,铁路一方面能够提升贸易区位劣势地区的企业出口参与度,另一方面能够促使出口福利空间溢出,增强贸易区位劣势地区对劳动力迁移的吸引力,从而对出口贸易的影响起到替代性作用。本文的研究结论揭示了交通基础设施在国际贸易的资源空间配置效应中发挥的重要作用,为当今中国统筹对外开放布局优化与国内市场一体化、推动区域经济协调发展提供了参考。

关键词：国际贸易交通基础设施区域经济增长近现代中国

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