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Sparse Representation De-noising for MT Signal Combined with Particle Swarm Optimization

Acta Geologica Sinica - English Edition 2019年第S1期93卷

作者： Xiaoqiong Liu Guang Li Tingtian Tang Jin Li College of Information Science and Engineering Hunan Normal University Changsha China School of Geophysics and Measurement-control Technology East China University of Technology Nanchang China School of Geosciences and Info-Physics Central South University Changsha 410083 China Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University) Ministry of Education Changsha China

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Day-ahead Intra-day Economic Dispatch Methodology Accounting for the Participation of Electrolytic Aluminum Loads and Energy Storage in Power System Peaking

Day-ahead Intra-day Economic Dispatch Methodology Accounting...

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Power Science and technology (ICPST), IEEE International Conference on

作者： Wei Zheng Peng Yu Zhaoyang Xu Tianzhen Fan Hengyu Liu Meng Yu Jiong Zhang Junhui Li State Grid Liaoning Electric Power Supply Co. Ltd State Grid Fushun Electric Power Supply Company Liao Ning China State Grid Liaoning Electric Power Co. Ltd State Grid Liaoning Electric Power Company Limited Power Dispatch And Control Center Liao Ning China State Grid Electric Power Research Institute Co. Ltd State Grid Electric Power Research Institute Wuhan Efficiency Evaluation Co. Ltd Hu Bei China Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology (Northeast Electric Power University) Ji Lin China State Grid Liaoning Electric Power Co. Ltd State Grid Liaoning Electric Power Company Limited Electric Power Research Institute Liao Ning China

ISBN: (数字)9798350349030

ISBN: (纸本)9798350349047

Under the background of dual-carbon target and large-scale new energy access, most of the existing power system scheduling modes focus on the power source side, ignoring the potential of load-side interaction with the grid for peak shifting. In order to promote two-way coordination and interaction on both sides of the source and load sides, and to guarantee the balance of power supply and demand on different time scales and the high level of new energy consumption, it is proposed to incorporate the representative electrolysis aluminum loads on the load side into the main body of the scheduling, and to optimize the dispatching of power supply and demand through the configuration of It is proposed that the representative electrolytic aluminum load on the load side should be included in the main body of dispatch, and by configuring battery energy storage devices on the load side, joint optimal dispatch with thermal power units containing carbon capture devices should be carried out. With the optimization objective of minimizing the operating cost of the power system, a joint day-ahead-intraday economic dispatch method is developed. Finally, simulation calculations are carried out with an example to show that the proposed peaking model can effectively guide the demand response of the aluminum loads, increase the rate of new energy consumption, and reduce the operating cost of the system at the same time.

关键词： Energy consumption Costs Power supplies Aluminum Optimal scheduling Wind power generation Regulation

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Advanced [email protected] composites: Construction and application towards environmental remediation

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Journal of Hazardous Materials 2022年 432卷

作者： Haihao Peng Weiping Xiong Zhaohui Yang Zhengyong Xu Jiao Cao Meiying Jia Yinping Xiang College of Environmental Science and Engineering Hunan University Changsha 410082 PR China Key Laboratory of Environmental Biology and Pollution Control (Hunan University) Ministry of Education Changsha 410082 PR China Hunan Modern Environmental Technology Co. Ltd Changsha 410004 PR China School of Chemistry and Food Engineering Changsha University of Science & Technology Changsha 410114 PR China

Environmental pollution has drawn forth advanced materials and progressive techniques concentrating on sustainable development. Metal-organic frameworks (MOFs) have aroused vast interest resulting from their excellent property in structure and function. Conversely, powdery MOFs in highly crystalline follow with fragility, poor processability and recoverability. Aerogels distinguished by the unique three-dimensional (3D) interconnected pore structures with high porosity and accessible surface area are promising carriers for MOFs. Given these, combining MOFs with aerogels at molecule level to obtain advanced composites is excepted to further enhance their performance with higher practicability. Herein, we focus on the latest studies on the [email protected] composites. The construction of [email protected] with different synthetic routes and drying methods are discussed. To explore the connection between structure and performance, pore structure engineering and quantitation of MOFs content are outlined. Furthermore, various types of [email protected] composites and their carbonized derivatives are reviewed, as well as the applications of [email protected] for environmental remediation referring to water purification and air clearing. More importantly, outlooks towards these emerging advanced composites have been presented from the perspective of practical application and future development.

关键词： Metal-organic frameworks Aerogel Composites Environmental remediation

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Anthraquinones isolated from the browned Chinese chestnut kernels (Castanea mollissima blume)

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IOP Conference Series: Earth and Environmental Science 2016年第1期41卷

作者： Y L Zhang J H Qi L Qin F Wang M X Pang College of Food Science and Engineering Beijing Key Laboratory of Detection and Control of Spoilage Organisms and Pesticide Residue in Agricultural Products Beijing Laboratory of Food Quality and Safety Beijing University of Agriculture Beijing 102206 China Pig processing team Modern agricultural industry technology system Beijing innovation team Beijing 100102 China College of Plant Science Beijing University of Agriculture Beijing 102206 China

Anthraquinones (AQS) represent a group of secondary metallic products in plants. AQS are often naturally occurring in plants and microorganisms. In a previous study, we found that AQS were produced by enzymatic browning reaction in Chinese chestnut kernels. To find out whether non-enzymatic browning reaction in the kernels could produce AQS too, AQS were extracted from three groups of chestnut kernels: fresh kernels, non-enzymatic browned kernels, and browned kernels, and the contents of AQS were determined. High performance liquid chromatography (HPLC) and nuclear magnetic resonance (NMR) methods were used to identify two compounds of AQS, rehein(1) and emodin(2). AQS were barely exists in the fresh kernels, while both browned kernel groups sample contained a high amount of AQS. Thus, we comfirmed that AQS could be produced during both enzymatic and non-enzymatic browning process. Rhein and emodin were the main components of AQS in the browned kernels.

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New Ga63(p,γ)Ge64 and Ge64(p,γ)As65 reaction rates corresponding to the temperature regime of thermonuclear x-ray bursts

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Physical Review C 2024年第6期110卷 065804-065804页

作者： Ning Lu (盧寧) Yi Hua Lam (藍乙華) Alexander Heger Zi Xin Liu (刘子鑫) Hidetoshi Yamaguchi (山口英斉) CAS Key Laboratory of High Precision Nuclear Spectroscopy Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China School of Nuclear Science and Technology Lanzhou University Lanzhou 730000 China School of Nuclear Science and Technology University of Chinese Academy of Sciences Beijing 100049 China Astrophysical Big Bang Laboratory (ABBL) Cluster for Pioneering Research RIKEN Wako Saitama 351-0198 Japan Present address: Zhejiang Key Laboratory of Quantum State Control and Optical Field Manipulation Department of Physics Zhejiang Sci-Tech University 310018 Hangzhou China. School of Physics and Astronomy Monash University Vic 3800 Australia OzGrav-Monash – Monash Centre for Astrophysics School of Physics and Astronomy Monash University Vic 3800 Australia Center of Excellence for Astrophysics in Three Dimensions (ASTRO-3D) School of Physics and Astronomy Monash University Vic 3800 Australia Joint Institute for Nuclear Astrophysics Michigan State University East Lansing Michigan 48824 USA Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000 China Center for Nuclear Study (CNS) the University of Tokyo RIKEN campus 2-1 Hirosawa Wako Saitama 351-0198 Japan National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka Tokyo 181-8588 Japan

We compute the Ga63(p,γ)Ge64 and Ge64(p,γ)As65 thermonuclear reaction rates using the latest experimental input supplemented with theoretical nuclear spectroscopic information. The experimental input consists of the latest proton thresholds of Ge64 and As65 and the nuclear spectroscopic information of As65, whereas the theoretical nuclear spectroscopic information for Ge64 and As65 are deduced from the full pf-shell space configuration-interaction shell-model calculations with the GXPF1A Hamiltonian. Both thermonuclear reaction rates are determined with known uncertainties at the energies that correspond to the Gamow windows of the temperature regime relevant to type I x-ray bursts, covering the typical temperature range of the thermonuclear runaway of the GS 1826−24 periodic bursts and SAX J1808.4−3658 photospheric radius expansion bursts.

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Electric structural features and metallogenic prospects of the Shangrao section of the Xinjiang basin

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Acta Geologica Sinica - English Edition 2019年第S1期93卷

作者： Guangming Fu Jiayong Yan Kun Zhang Hao Hu Fan Luo Xin Tao School of Geophysics and Measurement-control Technology East China University of Technology Nanchang 330013 Jiangxi China China Deep Exploration Center (SinoProbe Center) Chinese Academy of Geological Sciences Beijing 100037 China MNR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China China University of Geosciences (Wuhan) Wuhan 430074 Hubei China

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Corrigendum to “Widely targeted metabolomics analysis reveals the major metabolites in the hemp seeds from the longevity village of Bama, China” Ind. Crops. Prod. 206 (2023) 117661]

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Industrial Crops and Products 2024年 219卷

作者： Zhongting Chen Shuxia Hao Zhaoyuan He Jing Liu Jin Zhao Chunrong Chen Gengjie Jia Hailan Chen College of Animal Science and Technology Guangxi University Nanning Guangxi 530005 China Shenzhen Branch Guangdong Laboratory of Lingnan Modern Agriculture Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs Agricultural Genomics Institute at Shenzhen Chinese Academy of Agricultural Sciences Shenzhen Guangdong 518120 China Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics Nanning 530004 China Guangxi Key Laboratory of Animal Reproduction Breeding and Disease Control Nanning 530004 China

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Coordination of Electricity and Heat Dispatch Strategy Combining Carbon Trading and Peak Shaving Compensation Mechanism

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Journal of Physics: Conference Series 2020年第1期1578卷

作者： Weichun Ge Zhao Li Dong Zhao Zhenyu Li Qing Ye Yu Fu Na Yu State Grid Liaoning Province Electric Power Company Limited Shenyang 110006 China Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Ministry of Education (Northeast Electric Power University) Jilin 132012 China Fuxin Power Supply Company of Liaoning Electric Power Co. Ltd Liaoning Fuxin 123000 China

Integrated power generation group's participation in the carbon trading market and peaking auxiliary service market is one of the effective ways to promote low carbon power development and wind power consumption. Aiming at the serious problem of wind abandonment during the low temperature period of winter heating period in Northeast China, a multi-market mechanism is proposed. The carbon trading is analysed. Firstly, and the regional peak demand optimization model based on multi-scenario stochastic programming and the maximum wind power acceptance power calculation model of regional power grid is constructed to calculate the peak shaving demand and existing peak shaving in each period of the regional power grid. Maximum wind power acceptance under resources; Based on the coordination of carbon quotas among power generation groups and the subsection compensation mechanism of compensated peak shaving costs, and aiming at the minimum sum of total coal consumption costs, wind abandonment penalties and compensation costs, integrated dispatching model considering carbon trading and peak shaving compensation is established. Finally, an example is given to verify the rationality and effectiveness of the proposed strategy.

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Research on Parameter Identification Method of Generator Excitation System Based on Differential Evolution Algorithm

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IOP Conference Series: Materials Science and Engineering 2020年第1期752卷

作者： Nan Li Yuqun Liu Bin Geng Key Laboratory of Modern Power System Simulation and Control and Renewable Energy Technology Ministry of Education Northeast Electric Power University Jilin 132012 Jilin Province China College of Electrical Engineering Northeast Electric Power University Jilin 13012 Jilin Province China Jilin Electric Power Co. Ltd. Changchun 130021 Jilin Province China

In order to solve the problem of large parameter identification error caused by nonlinear links of excitation system being triggered easily when transient stability is under fault state, an improved differential evolution algorithm for system parameter identification is proposed by using the characteristic of artificial intelligence algorithm that the nonlinear link is approximated infinitely through optimization. The improvement of the algorithm solves the problems of slow convergence speed, poor fine optimization ability and easily to produce local optimum when classical artificial intelligence algorithm identifies the parameters of non-linear links. At the same time, in order to solve the problem of inaccurate parameters in the whole identification, a decomposition link identification strategy is proposed. The example analysis shows that the algorithm improves the convergence speed, avoids local optimum and improves the convergence accuracy. According to the proposed parameter identification strategy, the excitation system is decomposed and identified, which improves the accuracy of generator excitation system parameter identification, and provides an accurate model and method for power system stability analysis

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Optimal dispatching strategy in the domain with energy storage and heat storage taking into account deep regulation of thermal power plants

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IOP Conference Series: Earth and Environmental Science 2021年第1期675卷

作者： Weichun Ge Debao Liu Guannan Deng Tieying Zhao Shunjiang Wang Yu Guo State Grid Liaoning Electric Power Co. Ltd. Shenyang 110006 China Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Ministry of Education(Northeast Electric Power University) Jilin 132012 China Anshan Power Supply Company of Liaoning Electric Power Co. Ltd. Anshan 114002 China

In recent years, the installed capacity of wind power has been increasing, and the phenomenon of regional wind abandonment has become prominent. In order to improve the wind power accommodation, the domain definition is introduced, which stipulates that the periods without wind abandonment and load shedding during normal output of thermal power units are normal domains, the periods without wind abandonment or load shedding when thermal power units exert depth adjustment are abnormal domains, and the periods with wind abandonment or load shedding during depth adjustment of thermal power units are emergency domains. Give full play to the depth adjustment of thermal power units in abnormal and emergency areas, improve the accommodation of clean energy, and realize the coordinated and optimized scheduling of multiple energy sources including electricity storage and heat storage systems. To accommodate clean energy, an economic dispatching model including the cost of thermal power, the cost and benefit of power storage and heat storage system is constructed, and the optimal value of the model is solved by calling CPLEX with Matlab. The scheduling results not only ensure the safety and reliability of the whole network operation but also maximize the consumption of wind energy and realize the optimal clean energy scheduling.

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