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Optimal Scheduling of Regional Integrated Energy Systems Considering Hybrid Demand Response

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1208-1219页

作者： Ganyun lyu Bin Cao Dexiang Jia Nan Wang Jun Li Guangyu Chen Department of Electrical Engineering Nanjing Institute of TechnologyNanjing 211167China State Grid Energy Research Institute Co. LTDBeijing 102209China State Grid Integrated Energy Service Group Co. LTDBeijing 100032China IEEE CSEE

Flexible load can optimize the load curve,which is an important means to promote renewable energy *** peculiarities of electricity,heat,cooling and gas loads are analyzed in this paper,considering the fuzzy degree of human perception for water temperature,and the characteristic model of hot water load is *** the fuzzy degree of human perception of ambient temperature,the characteristic model of cooling load is established by using PMV and PPD ***,considering four combinations of cut load,translatable load,transferable load and alternative load,and considering the coupling relationship of composite parts,different response models of load are established *** the minimum cost of the system,including operation and compensation costs as the objective function,the optimization scheduling model of the regional integrated energy system is established,and the Gurobi solver is used for simulation analysis to solve the optimal output and load response curve of each piece of *** results show that the load curve can be optimized,the flexible regulation ability of the regional integrated energy system can be enhanced,the energy loss of the system can be reduced,and the wind power consumption ability of the system can be increased by considering the integrated demand response.

关键词： Alternative load day ahead optimal scheduling integrated demand response PMV and PPD index regional integrated energy system

Numerical simulation of fluid-thermal-structural coupling characteristics of stratospheric non-rigid airship

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CHINESE JOURNAL OF AERONAUTICS 2024年第9期37卷 224-236页

作者： Du, Huafei lyu, Mingyun Yu, Chuan Wu, Yifei Wu, Yongmei Sun, Kangwen Beihang Univ Sch Aeronaut Sci & Engn Beijing 100191 Peoples R China Linzhou Ningbo Technol Co Ltd Yuyao 315042 Peoples R China

The voluminous stratospheric non-rigid airship is very sensitive to the external thermal environment. The temperature change of internal gas caused by the variation in the external thermal environment and wind speed will lead to a change in the shape and buoyancy of the airship, thereby affecting its flight control. The traditional static analysis method is difficult to accurately reflect this fluid-thermal-structural coupling process. In this paper, the iterative analysis method was established for the fluid-thermal-structural coupling effect of stratospheric non-rigid airship based on the models of fluid, thermal, and structural deformation. Considering the load such as the internal thermal effect and external flow field of the airship, the simulation of the thermoinduced structural deformation effect was conducted using Fluent and Abaqus software. The influence of local time and external wind speed on the structural deformation, volume, and equilibrium altitude of the airship was analyzed. The results demonstrate that, at low wind speed, the influence of aerodynamic pressure on the deformation of the airship is negligible. However, a great amount of heat is carried away by the wind, then the structural deformation caused by internal and external pressure difference is alleviated and the equilibrium altitude of the airship change obviously. This can serve as a guideline for the design and flight test of the long-endurance stratospheric nonrigid airship.

关键词： Altitude change Fluid-thermal-structural Stratospheric non-rigid air- Structural deformation Wind speed SOLAR-ARRAY PERFORMANCE OPTIMIZATION SHAPE

Construction personnel dress code detection based on YOLO framework

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CAAI Transactions on Intelligence Technology 2024年第3期9卷 709-721页

作者： Yunkai lyu Xiaobing Yang Ai Guan Jingwen Wang Leni Dai College of Information Engineering China Jiliang UniversityHangzhouChina College of Integrated Circuit Science and Engineering Nanjing University of Posts and TelecommunicationsNanjingChina China Jiliang University HangzhouZhejiangChina Department of Mathematics University of California San DiegoLa JollaCaliforniaUSA

It is important for construction personnel to observe the dress code,such as the correct wearing of safety helmets and reflective vests is conducive to protecting the workers'lives and safety of construction.A YOLO network-based detection algorithm is proposed for the construction personnel dress code(YOLO-CPDC).Firstly,Multi-Head Self-Attention(MHSA)is introduced into the backbone network to build a hybrid back-bone,called Convolution MHSA Network(CMNet).The CMNet gives the model a global field of view and enhances the detection capability of the model for small and obscured ***,an efficient and lightweight convolution module is *** is named Ghost Shuffle Attention-Conv-BN-SiLU(GSA-CBS)and is used in the neck *** GSANeck network reduces the model size without affecting the ***,the SIoU is used in the loss function and Soft NMS is used for *** results on the self-constructed dataset show that YOLO-CPDC algorithm has higher detection accuracy than current ***-CPDC achieves a mAP50 of 93.6%.Compared with the YOLOv5s,the number of parame-ters of our model is reduced by 18%and the mAP50 is improved by 1.1%.Overall,this research effectively meets the actual demand of dress code detection in construction scenes.

关键词： artificial intelligence computer vision deep learning deep neural networks

藿香、苍术对甲型H1N1流感免疫调节差异的生物信息学分析

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中医杂志 2016年第12期57卷 1011-1014页

作者：李立寇爽赵静吕诚何小鹃姜淼吕爱平中国中医科学院中医临床基础医学研究所

目的对比不同归经芳香药藿香和苍术调节甲型H1N1流感免疫相关通路的差异。方法采用台湾中医药资料库、Pub Chem、TCMID查找肺经芳香药藿香和非肺经芳香药苍术的化学成分及其靶蛋白,采用Gene数据库查找甲型H1N1流感相关基因,运用生物信... 详细信息

目的对比不同归经芳香药藿香和苍术调节甲型H1N1流感免疫相关通路的差异。方法采用台湾中医药资料库、Pub Chem、TCMID查找肺经芳香药藿香和非肺经芳香药苍术的化学成分及其靶蛋白,采用Gene数据库查找甲型H1N1流感相关基因,运用生物信息软件分析三者分子网络和生物通路的相关性,对比两种药物对甲型H1N1流感免疫相关通路中的作用差异。结果藿香靶蛋白共42个,苍术靶蛋白24个,甲型H1N1流感相关基因32个。甲型H1N1流感的分子网络与藿香形成的分子网络关联较多,与苍术形成的分子网络关联则相对较少;藿香较苍术可以作用于更多与甲型H1N1流感相关的免疫炎性疾病;藿香与甲型H1N1流感共同作用于10条免疫生物学通路,苍术与甲型H1N1流感共同作用于4条免疫生物学通路。结论归肺经芳香药藿香较非肺经芳香药苍术对甲型H1N1流感可能更有免疫调节优势。

关键词：甲型H1N1流感芳香药藿香苍术生物信息学免疫通路

Parent-offspring relationship recognition based on SSR and mtDNA confirmed resource supplement effect of Fenneropenaeus chinensis release

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Acta Oceanologica Sinica 2024年第2期43卷 156-160页

作者： Song Sun Ding lyu Xianshi Jin Xiujuan Shan Weiji Wang Key Laboratory of Sustainable Development of Marine Fisheries Ministry of Agriculture and Rural AffairsYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Function Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

The resource of Fenneropenaeus chinensis has declined sharply due to excessive fishing intensity,ecological changes and *** order to supplement the fishing yield and restore resources of ***,the relevant authorities have carried out the activities of stock enhancement and *** can increase biomass and recover ***,compared with increasing biomass,there were still few reports on its effect on the recovery of *** recovery is a process related to whether the released individuals can form a reproductive *** to now,there has been a lack of evidence whether the released *** can complete the entire life history,and form reproduction *** this study,gravid female shrimp after spawning migration were captured from coastal waters of Haiyang,Qingdao,and Yellow *** identifying parentage relationships using simple sequence repeat(SSR)and mtDNA haplotype,it was finally confirmed that there were eight released individuals in the recapture *** was confirmed for the first time that at least part of the released *** can complete overwintering and reproductive migration,and maintain the migration habits as their wild ***,we infered that the released shrimp can reproduce under natural conditions,these *** can form reproductive populations theoretically if without human *** results indicated that enhancenment and release activities have a positive effect on resource recovery.

关键词： Fenneropenaeus chinensis release simple sequence repeat(SSR) mtDNA resource supplement

Synthesis of poly(thiourethane-alt-thioester)by alternating ring-opening copolymerization of N-thiocarboxyanhydrides and episulfides

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Science China Chemistry 2024年第9期67卷 3091-3097页

作者： Wei Xiong Tianjun Yue Haiwang Lai Chunyan lyu Weimin Ren Hua Lu Beijing National Laboratory for Molecular Sciences Center for Soft Matter Science and EngineeringKey Laboratory of Polymer Chemistry and Physics of Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116081China

Polythiourethanes(PTU)and polythioesters(PTE)derived from renewable sources are emerging sustainable polymers for their excellent degradability and ***,P(TU-alt-TE)copolymers have been rare and challenging to ***,we report the efficient synthesis of novel P(TU-alt-TE)copolymers via the alternating copolymerization of N-thiocarboxyanhydrides(NTA)/episufides(ES)and provide mechanistic insight into the alternating chain propagation process via density functional theory(DFT)*** incorporation of ESs into traditional peptide backbone is capable of adjusting the glass transition temperature below thermal decomposition temperature,which confers better thermal processability by regulating the rigidity of the backbone and the hydrogen bond interaction among the polymer *** PTUs with tailored properties are accessible by altering the feeding ratio of NTAs and(bifunctional)***,the thiourethane in the backbone can endow interesting underwater adhesion properties to the *** the broad scope of NTA and ES monomers,this method is expected to provide a promising and general route to a wide range of P(TU-alt-TE)copolymers with diverse properties.

关键词： poly(thiourethane-alt-thioester) alternating ring-opening copolymerization N-thiocarboxyanhydrides episulfides

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Analytical Solution and Simplified Formula for Added Mass of Horizontal and Vertical Motions of Truncated Cylinders Under Earthquake Action

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China Ocean Engineering 2024年第1期38卷 54-67页

作者： WANG Pi-guang lyu Si-yu QU Yang ZHAO Mi DU Xiu-li State Key Laboratory of Bridge Engineering Safety and Resilience Beijing University of TechnologyBeijing 100124China Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of Tech-nologyBeijing 100124China

This paper investigates the hydrodynamic characteristics of floating truncated cylinders undergoing horizontal and vertical motions due to earthquake excitations in the finite water *** governing equation of the hydrodynamic pressure acting on the cylinder is derived based on the radiation theory with the inviscid and incompressible *** governing equation is solved by using the method of separating variables and analytical solutions are obtained by assigning reasonable boundary *** analytical result is validated by a numerical model using the exact artificial boundary simulation of the infinite *** main variation and distribution characteristics of the hydrodynamic pressure acting on the side and bottom of the cylinder are analyzed for different combinations of wide-height and immersion *** added mass coefficient of the cylinder is calculated by integrating the hydrodynamic pressure and simplified formulas are proposed for engineering *** calculation results show that the simplified formulas are in good agreement with the analytical solutions.

关键词： earthquake hydrodynamic pressure truncated cylinder added mass simplified formula

Metal-free Optical Pressure Sensor with High Sensitivity and Extensive Range

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1291-1300页

作者： Mao Ji Meng Huang Haomin lyu Sheng Shi Bo Qi Chengrong Li State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China IEEE CSEE

Pressure monitoring of a transformer oil tank can grasp the pressure change process caused by gas production when severe internal defects occur and take timely measures to ensure the safe operation of the *** pressure sensors generally use metal encapsulation or have an air cavity structure,threatening the transformer’s insulation if it is directly used inside the *** this end,this paper proposes a method for developing a high-sensitivity,large-range,and metallizationfree optical pressure sensing device with temperature *** grating is encapsulated by fluorosilicone rubber and supplemented by an epoxy resin shielding shell on the *** the same time,a double-grating vertical arrangement is adopted to improve pressure measurement sensitivity,further avoiding the influence of temperature rise caused by a defect of the transformer on the measurement result of the *** addition,by optimizing the geometric structure of the internal sensitizing element,pre-stretching length of the fiber grating,gap distance,and other parameters,probe size can be reduced while ensuring the sensor’s *** show the proposed method can meet the requirements of sensor fabrication with different sensitivities and ranges,and to a certain extent,both high sensitivity and extensive ranges can be taken into *** sensitivity of the fabricated prototype is 15 pm/kPa,and the range is about 0.2 *** the same time,the metal-free feature of the sensor makes it suitable for use in various oil-immersed power *** records oil pressure changes caused by oil discharge breakdown,making it sensitive to small pressure changes in early failures.

关键词： Highly sensitive extensive range optical sensing no metallization pressure perception temperature compensation transformer

从肾论治不孕症高频药物与证型关系的现代病案研究

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中华中医药学刊 2017年第7期35卷 1639-1641页

作者：吕爱平丁婉珍高明月辽宁中医药大学基础医学院辽宁沈阳110847

探讨从肾论治不孕症的用药规律和证型分布特点。通过对近40年治疗不孕症的中医现代病案文献进行检索,对收集到从肾论治不孕症的160篇文献,采用关联规则方法对其药物与药物、药物与证型之间的关系进行分析,得出了用药规律,即单味药中从... 详细信息

探讨从肾论治不孕症的用药规律和证型分布特点。通过对近40年治疗不孕症的中医现代病案文献进行检索,对收集到从肾论治不孕症的160篇文献,采用关联规则方法对其药物与药物、药物与证型之间的关系进行分析,得出了用药规律,即单味药中从肾论治不孕症的相关高频药前9味是菟丝子、熟地、当归、白芍、枸杞、山药、山茱萸、香附、巴戟天,说明肾虚导致的不孕症多数是肾阴精亏虚,治疗上滋肾补阴填精养血的药物居多数,其中菟丝子与肾阳虚、肾阴虚、肾虚皆有强关联,因此在治疗中,菟丝子皆参与用药。在聚类分析中,单味菟丝子被聚为一类,在频数分析中,菟丝子频数居首,可见不孕症从肾论治方药中菟丝子的重要地位,为临床辨治不孕症提供参考。

关键词：不孕症治则数据挖掘藏象学