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Optimization for Micro-energy Grid Dispatch Based on Non-supplementary Fired Compressed Air Energy Storage Aided Energy Hub and Hybrid Hyper-spherical Search

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Journal of Modern Power Systems and Clean Energy 2022年第4期10卷 1009-1020页

作者： Zhenlong Li Peng Li Jing Xia xiangqian liu Beijing Jiaotong University BeijingChina State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijingChina Beijing Goldwind Science&Creation Wind Power Equipment Co. Ltd.BeijingChina

Micro-energy grids have shown superiorities over traditional electricity and heating management *** paper presents a hybrid optimization strategy for micro-energy grid dispatch with three salient ***,to enhance the ability to support new storage equipment,an energy hub model is proposed using the non-supplementary fired compressed air energy storage(NSF-CAES).This provides flexible dispatch for cooling,heating and ***,considering the unique characteristics of the NSF-CAES,a sliding time window(STW)method is designed for simple but effective energy ***,for the optimization of energy dispatch,we blend the differential evolution(DE)with the hyper-spherical search(HSS)to formulate a hybrid DE-HSS algorithm,which enhances the global search ability and *** case studies are performed using real data of scenarios to demonstrate the superiorities of the proposed scheme.

关键词： Energy hub dispatch hyper-spherical search micro-energy grid sliding time window

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某项目供配电设计分析

现代建筑电气 2024年第6期15卷 74-79页

作者：刘相前张淑雯张雁香港华艺设计顾问(深圳)有限公司广东深圳518000

结合项目实际,应用现代电力技术和智能电网理念,进行系统分析和规划设计。该设计实现了优化电能分配、提升供电可靠性和节约成本的目标,满足了项目需求。结果可供同类项目参考。

关键词：住宅设计电气设计负荷分级负荷计算变电所设置低压供配电系统

Event-Triggered Bipartite Consensus Tracking and Vibration Control of Flexible Timoshenko Manipulators Under Time-Varying Actuator Faults

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1190-1201页

作者： xiangqian Yao Hao Sun Zhijia Zhao Yu liu School of Automation Science and Engineering South China University of TechnologyGuangzhou 510640China Yongjiang Laboratory Ningbo 315202 School of Astronautics Harbin Institute of TechnologyHarbin 150001China School of Mechanical and Electrical Engineering Guangzhou UniversityGuangzhou 510006China

For bipartite angle consensus tracking and vibration suppression of multiple Timoshenko manipulator systems with time-varying actuator faults,parameter and modeling uncertainties,and unknown disturbances,a novel distributed boundary event-triggered control strategy is proposed in this *** contrast to the earlier findings,time-varying consensus tracking and actuator defects are taken into account *** addition,the constructed event-triggered control mechanism can achieve a more flexible design because it is not required to satisfy the input-to-state *** achieve the control objectives,some new integral control variables are given by using back-stepping technique and boundary ***,adaptive neural networks are applied to estimate system *** the proposed event-triggered scheme,control inputs can reduce unnecessary ***,tracking errors and vibration states of the closed-looped network can be exponentially convergent into some small fields,and Zeno behaviors can be *** last,some simulation examples are given to state the effectiveness of the control algorithms.

关键词： Vibration satisfy bipartite

近红外光谱法结合偏最小二乘法预测生物柴油中甲醇的含量

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理化检验（化学分册） 2024年第6期60卷 606-611页

作者：张卓昆闫春华岳承恩安端阳刘向前王梦迪张天龙李华西安石油大学化学化工学院西安710065 西北大学化学与材料科学学院西安710127

生物柴油中甲醇的定量分析对其品质监控具有重要科学意义与实用价值,因此进行了题示研究。制作44个含不同体积分数甲醇的生物柴油样品,采集了相应的近红外光谱。采用Savitzky-Golay平滑滤波(SG)和标准正态变换(SNV)相结合的方法对原始... 详细信息

生物柴油中甲醇的定量分析对其品质监控具有重要科学意义与实用价值,因此进行了题示研究。制作44个含不同体积分数甲醇的生物柴油样品,采集了相应的近红外光谱。采用Savitzky-Golay平滑滤波(SG)和标准正态变换(SNV)相结合的方法对原始光谱进行预处理,并采用协同区间偏最小二乘法(SIPLS)提取特征变量,确定在6270~6640 cm^(−1)和10900~11240 cm^(−1)波段内采用偏最小二乘法(PLS)建模。结果显示,所建SG-SNV-SIPLS-PLS模型的留一交叉验证决定系数R2 cv为0.9994,均方根误差RMSECV为0.0488,预测集决定系数R_(p)^(2)为0.9996,均方根误差RMSEP为0.0563,变量数为207,优于PLS模型以及单变量线性回归模型的。

关键词：生物柴油甲醇定量预测近红外光谱法偏最小二乘法

Whittaker modules over loop Virasoro algebra

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Frontiers of Mathematics in China 2013年第2期8卷 393-410页

作者： Xuewen liu xiangqian GUO Department of Mathematics Zhengzhou University Zhengzhou 450001 China

In this paper, we study Whittaker modules over the loop Virasoro algebra relative to some total order. We give a description of all Whittaker vectors for the universal Whittaker modules. We also show that any universa... 详细信息

关键词： Loop Virasoro algebra Whittaker module Whittaker vector

中国五加属(五加科)一新变种——太白白毛五加

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贵州科学 2024年第2期42卷 14-15,73页

作者：罗姣陈杨陆昌洙高圣权刘向前湖南中医药大学药学院湖南长沙414018 庆熙大学药学院韩国首尔130-701 韩国世明大学汉方食品营养学院韩国堤川390-711

采自陕西省宝鸡市太白山的五加科五加属一中国新变种:太白白毛五加(Acanthopanax senticosus *** ***,***,***,et ***)。该种与刺五加(Acanthopanax senticosus(***.)Harms)形态上最为相似,但前者的茎互生短粗的三角形状白色刺,叶背面... 详细信息

采自陕西省宝鸡市太白山的五加科五加属一中国新变种:太白白毛五加(Acanthopanax senticosus *** ***,***,***,et ***)。该种与刺五加(Acanthopanax senticosus(***.)Harms)形态上最为相似,但前者的茎互生短粗的三角形状白色刺,叶背面密生白色绵毛,二者容易区分。文章对该种的形态特征进行了详细描述,并提供彩色照片。凭证标本存放于湖南中医药大学标本馆。

关键词：太白白毛五加五加科新变种陕西中国

Hydrogel-Assisted Electrokinetics for High-Resolution and Non-invasive Flow Monitoring in Microfluidic Chips

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Chinese Journal of Chemistry 2024年第6期42卷 571-577页

作者： Na Zhao Yanni Ma Zehua Yu Jun Huang xiangqian Fu Tao Qiu Kang liu MOE Key Laboratory of Hydraulic Machinery Transients School of Power and Mechanical EngineeringWuhan UniversityWuhanHubei430072 China Department of Urology Renmin Hospital of Wuhan UniversityWuhanHubei430072 China Department of Organ Transplantation Renmin Hospital of Wuhan UniversityWuhanHubei430072 China

Convenient non-invasive flow monitoring would facilitate the operation and control in microfluidic chips,but is challenging due to the small space of microchannels and complex operation required in traditional optical *** this work,we propose a novel non-invasive strategy to probe microfluidic flows via streaming potential *** sealing one side of the microchannel with a piece of hydrogel film,streaming potential inside the channel can be clearly detected by electrodes at outer surface of the hydrogel due to ion diffusion in the *** is detected without sensors contacting with the internal ***,the electrodes shape like a tiny probe,which can move around mapping the flow distribution in a chip with the spatial resolution of 1 mm and flow rate detection limit of 3μL·min–*** inside the channels can also be detected,due to the fluctuation of streaming voltage when gas-liquid interface flows through the electrode,showing an easy and potential way for multi-functional flow monitoring in microfluidic chips.

关键词： Microfluidics Hydrogels Electrokinetics Flow monitoring Non-invasive Sensor Charge transport

Correlation between microstructures and mechanical properties of high-speed friction stir welded aluminum hollow extrusions subjected to axial forces

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Journal of Materials Science & Technology 2018年第1期34卷 102-111页

作者： xiangqian liu Huijie liu Tianhao Wang Xiangguo Wang Si Yang State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 China Luoyang Ship Material Research Institute Luoyang 471023 China

The AA6005A-T6 aluminum hollow extrusions were friction stir welded at a high welding speed of 2000mm/min and various axial forces. The results show that the nugget zone （NZ） is characterized by fine equiaxed grains, in which a low density of equilibrium phase β is observed. The grains in the thermo-mechanically affected zone （TMAZ） are elongated, and the highest density of dislocations and a low density of β precipitates can be found in grains. The heat affected zone （HAZ） only experiences a low thermal cycle, and a high density of β precipitates and a low density of β precipitates remain in the coarsened grains. The microhardness evolutions in the NZ, TMAZ and HAZ are governed by the grain refinement and dislocation strengthening, the dislocation and precipitation strengthening, and the precipitation and solid solution strengthening, respectively. When increasing the axial force, the changing trend of one strengthening mechanism is contrary to the other in each zone, and the microhardness increases in different zones. As a result, the tensile strength roughly increases with raising the axial force, and all joints show good tensile properties as the high welding speed inhibits the coarsening and dissolution of strengthening precipitates significantly.

关键词： Aluminum hollow extrusions High-speed friction stir welding Microstructures Mechanical properties

Using Huntingtin Knock-In Minipigs to Fill the Gap Between Mouse Models and Patients with Huntington's Disease

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Neuroscience Bulletin 2018年第5期34卷 870-872页

作者： xiangqian liu Ting Peng He Li Department of Histology and Embryology School of Basic Medicine Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China Key Laboratory for Neurological Disorders (Ministry of Education) Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China

Huntington＇s disease （HD） is an inherited autosomal dominant neurodegenerative disease characterized by pro- gressive motor deficits, cognitive decline, and psychiatric symptoms. It is caused by a pathological expansion of CAG trinucleotide repeats in exon 1 of the HD gene, resulting in the translation of a mutant form of huntingtin protein （mutant Htt） with an expanded polyglutamine domain in the N-terminal region [1 ]. Despite great progress in understanding the pathogenesis of HD using multiple mouse models, the exact mechanisms by which mutant Htt induces neuronal dysfunction and death are still not completely clear, and there is no curative treatment for this disease. An important reason is that the mouse, which is the most widely used animal model in HD research, differs from the human in many aspects, including the physiology, drug metabolism, blood-brain barrier, life span, brain volume, and neuroanatomical organization [2]. Thus, it is necessary to establish HD models with higher species than rodents, such as the dog, pig, and non- human primate, so as to bridge the gap between preclinical mouse models and clinical studies.

关键词： HD In Using Huntingtin Knock-In Minipigs to Fill the Gap Between Mouse Models and Patients with Huntington’s Disease