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International Journal of Minerals,Metallurgy and Materials 2018年第12期25卷 1473-1481页

作者： Azhar Iqbal Long Chen Yong Chen Yu-xian Gao Fang Chen Dao-cong Li Institute of Engineering Research Hefei Guoxuan High-Tech Power Energy CO. Ltd

A high-energy-density Li-ion battery with excellent rate capability and long cycle life was fabricated with a Ni-rich layered LiNi_(0.8)co_(0.1)Mn_(0.1)O_2 cathode and Si O-C composite anode. The LiNi_(0.8)co_(0.1)Mn_(0.1)O_2 and Si O-C exhibited excellent electrochemical performance in both half and full cells. Specifically, when integrated into a full cell configuration, a high energy density(280 Wh·kg^(-1)) with excellent rate capability and long cycle life was attained. At 0.5 C, the full cell retained 80% of its initial capacity after 200 charge/discharge cycles, and 60% after 600 cycles, indicating robust structural tolerance for the repeated insertion/extraction of Li^+ ions. The rate performance showed that, at high rate of 1 C and 2 C, 96.8% and 93% of the initial capacity were retained, respectively. The results demonstrate strong potential for the development of high energy density Li-ion batteries for practical applications.

关键词： high energy density full cell rate performance high capacity cathode

Development and Validation of a Simoa Assay for Determination of Recombinant Batroxobin in Human Serum

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Current Medical Science 2021年第3期41卷 618-625页

作者： Bian-zhen WANG Meng-jia WANG Min-rui WANG Lun OU Li-hou DONG Kelly DONG Hai-feng SONG State Key Laboratory of Proteomics Beijing Proteome Research CenterNational Center of Protein Sciences(Beijing)Beijing Institute of LifeomicsBeijing 102206China united-power pharma tech co LtdBeijing J02206China

Recombinant batroxobin(S3101)is a thrombin-like serine protease that binds to fibrinogen or is taken up by the reticuloendothelial system.A literature survey showed no adequate method that could determine sufficient concentrations to evaluate pharmacokinetic parameters for phase I clinical ***,a sensitive method is urgently needed to support the clinical pharmacokinetic evaluation of *** this study,a sensitive bioanalytical method was developed and validated,using a Quanterix single molecular array(Simoa)***,to thoroughly assess the platform,enzyme-linked immunosorbent assay and electrochemiluminescence assay were also developed,and their performance was compared with that of this novel technology *** assay was validated in compliance with the current *** with the Simoa assay were precise and accurate,presenting a valid assay range from 6.55 to 4000 pg/*** intra-and inter-run accuracy and precision were within-19.3%to 15.3%and 5.5%to 17.0%,respectively.S3101 was stable in human serum for 280 days at-20℃and-70℃,for 2 h prior to pre-treatment and 24 h post pre-treatment at room temperature(22℃-28℃),respectively,and after five and two freeze-thaw cycles at-70℃and-20oC,*** Simoa assay also demonstrated sufficient dilution linearity,assay sensitivity,and parallelism for quantifying S3101 in human *** Simoa assay is a sensitive and adequate method for evaluating the pharmacokinetic parameters of S3101 in human serum.

关键词： enzyme-linked immunosorbent assay electrochemiluminescence assay quanterix single molecular array recombinant batroxobin ligand-binding assay

Parametric Study on Arc Behavior of Magnetically Diffused Arc

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Plasma Science and technology 2016年第1期18卷 6-11页

作者：陈瑭李辉白冰廖梦然夏维东 Department of Thermal Science and Energy Engineering University of Science and Technology of China Full Dimension power tech.co. Ltd

A model coupling the plasma with a cathode body is applied in the simulation of the diffuse state of a magnetically rotating *** parametric studies are performed：on the external axial magnetic field（AMF）,on the cathode shape,on the total current and on the inlet gas *** numerical results show that：the cathode attachment focuses in the center of the cathode tip with zero AMF and gradually shifts off the axis with the increase of AMF;a larger cathode conical angle corresponds to a cathode arc attachment farther away off axis;the maximum values of plasma temperature increase with the total current;the plasma column in front of the cathode tip expands more severely in the axial direction,with a higher inlet speed;the cathode arc attachment shrinks towards the tip as the inlet speed *** various results are supposed to be explained by the joint effect of coupled cathode surface heating and plasma rotating flow.

关键词： arc modeling cathode arc attachment plasma configuration

Optimal Operation of Electric Vehicles and Distributed Generation Resources in Smart Grid considering Load Management

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Energy Engineering 2022年第6期119卷 2655-2679页

作者： Zheng Wang Shangke Liu Yanli Xiao Ye Wan Bin Bai State Grid Ningxia Electric power co. Ltd.Eco-Tech Research InstituteYinchuan750004China

technology advancement and the global tendency to use renewable energy in distributed generation units in the distribution network have been proposed as sources of energy *** the complexity of their protection,as well as the operation of distributed generation resources in the distribution network,factors such as improving reliability,increasing production capacity of the distribution network,stabilizing the voltage of the distribution network,reducing peak clipping losses,as well as economic and environmental considerations,have expanded the influence of distributed generation(DG)resources in the distribution *** location of DG sources and their capacity are the key factors in the effectiveness of distributed generation in the voltage stability of distribution ***,along with the scattered production sources of electric vehicles with the ability to connect to the network,due to having an energy storage system,they are known as valuable resources that can provide various services to the power *** vehicles can empower the grid or be used as a storage supply source when parked and connected to the *** paper introduces and studies a two-stage planning framework for the concurrent management of many electric vehicles and distributed generation resources with private *** the first stage,the aim is to increase the profit of electric vehicles and distributed generation sources;finally,the purpose is to reduce operating *** proposed scheduling framework is tested on a distribution network connected to bus 5 of the RBTS sample *** distributed generation sources and electric vehicles,we integrate time-consistent load management into the *** to distributed generation sources such as photovoltaic systems and wind turbines and the studied design in the modeling,we use the Taguchi TOAT algorithm to generate and reduce the scenario to ensure the uncertainty in renewable *** software is used t

关键词： Electric vehicle distributed generation sources coordinator uncertainty taguchi algorithm harmony search algorithm load management

Heat and power load dispatching considering energy storage of district heating system and electric boilers

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Journal of Modern power Systems and Clean Energy 2018年第5期6卷 992-1003页

作者： Xianzheng HUANG Zhaofeng XU Yong SUN Yali XUE Zhe WANG Zhijun LIU Zhenyuan LI Weidou NI Department of Energy and power Engineering State Key Lab of Power SystemsTsinghua University State Grid Jilin Electric power co. Ltd

As one of promising clean and low-emission energy, wind power is being rapidly developed in ***, it faces serious problem of wind curtailment,particularly in northeast China, where combined heat and power(CHP) units cover a large proportion of the district heat supply. Due to the inherent strong coupling between the power and the heat load, the operational flexibility of CHP units is severely restricted in winter to meet the heat supply demand, which imparts considerable stress on the wind power connection to the grid. To promote the integration of wind power and enhance the flexibility of CHP units, this paper presented a method of heat and power load dispatching by exploring the energy storage ability of electric heating boilers and district heating systems. The optimization results indicate that the proposed method can integrate additional wind power into the grid and reduce the coal consumption of CHP units over the optimized period. Furthermore, the thermal inertia of a district heating system is found to contribute more to the reduction of coal consumption, whereas the electric heating boilers contribute to lower wind curtailment.

关键词： Wind power integration combined heat and power Electric heating boiler Thermal inertia

Role of oxygen vacancies and Sr sites in Srco_(0.8)Fe_(0.2)O_3 perovskite on efficient activation of peroxymonosulfate towards the degradation of aqueous organic pollutants

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Chinese Journal of Chemical Engineering 2021年第12期34卷 269-277页

作者： Li Yang Yong Jiao Dongyan Jia Yanzhi Li Chuanhua Liao School of Energy Science and Engineering Nanjing Tech UniversityNanjing 211816China School of Mechanical and power Engineering Nanjing Tech UniversityNanjing 211816China

Metal-based perovskite oxides have contributed significantly to the advanced oxidation processes(AOPs)due to their diverse active sites and excellent compositional/structural *** this study,we specially designed a perovskite oxide with abundant oxygen vacancies,Srco_(0.8)Fe_(0.2)O_(3)(SCF),and firstly applied it as a catalyst in peroxymonosulfate(PMS) activation towards organic pollutants *** result revealed that the prepared SCF catalyst exhibited excellent performance on organic compounds ***,SCF showed much better activity than La_(0.5)Sr_(0.5)co_(0.8)Fe_(0.2)O_(3)(LSCF) in terms of reaction rate and stability for the degradation of the organic *** on the analysis of scanning electron microscope,transmission electron microscope,X-ray diffraction,N_(2) adsorption-desorption,X-ray photoelectron spectroscopy and electron paramagnetic resonance,it was confirmed that the perovskite catalysts with high content of Sr doping at A-site could effectively create a defect-rich surface and optimize its physicochemical properties,which was responsible for the excellent heterogeneous catalytic activity of *** can generate three highly active species:~1 O_(2),SO_(4)^(-)· and ·OH in PMS activation,revealing the degradation process of organic compounds was a coupled multiple active species in both radical and nonradical ***,it was mainly in a radical pathway in the degradation through PMS activation on SCF and SO_(4)^(-)· radicals produced were the dominant species in SCF/PMS *** study demonstrated that perovskite-type catalysts could enrich OVs efficiently by doping strategy and regulate the PMS activation towards sulfate radical-based AOPs.

关键词： Perovskite Catalysis Activation of peroxymonosulfate Active oxygen species Degradation of organic compounds

Prediction model for cost data of a power transmission and transformation project based on Pearson correlation coefficient-IPSO-ELM

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Clean Energy 2021年第4期5卷 756-764页

作者： Ju Xin Liu ShangKe Xiao YanLi Wan Ye State Grid Ningxia Electric power co.Ltd Eco-tech Research Institute NingXia Yinchuan750004P.R.China

In view of the difficulty in predicting the cost data of power transmission and transformation projects at present,a method based on Pearson correlation coefficient-improved particle swarm optimization(IPSO)-extreme learning machine(ELM)is *** this paper,the Pearson correlation coefficient is used to screen out the main influencing factors as the input-independent variables of the ELM algorithm and IPSO based on a ladder-structure coding method is used to optimize the number of hidden-layer nodes,input weights and bias values of the ***,the prediction model for the cost data of power transmission and transformation projects based on the Pearson correlation coefficient-IPSO-ELM algorithm is *** the analysis of calculation examples,it is proved that the prediction accuracy of the proposed method is higher than that of other algorithms,which verifies the effectiveness of the model.

关键词： cost data of power transmission and transformation project Pearson correlation coefficient IPSO-ELM algorithm project-cost prediction

Research on the risk-evaluation model of power transmission and transformation projects based on multilevel fuzzy-thought weighting for cloud-model improvement

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Clean Energy 2022年第1期6卷 153-164页

作者： Yanli Xiao Ruixin Gou Zheng Wang Ye Wan State Grid Ningxia Electric power co.Ltd Eco-tech Research Institute NingXia Yinchuan750004P.R.China

The risk evaluation of power transmission and transformation projects is a complex and comprehensive evaluation process influenced by many factors and involves many *** order to solve the uncertainty and fuzziness problems in the process of the multilevel fuzzy risk evaluation of power transmission and transformation projects,this paper introduces the cloud theory,which is specialized in the study of uncertainty problems and constructs the multilevel fuzzy comprehensive risk-evaluation model of power transmission and transformation projects based on the improved multilevel fuzzy-thought weighting based on the cloud ***,the risk of the Beijing 220-kV Tangyu power transmission and transformation project is evaluated and the feasibility of the evaluation model is *** results of the evaluation and the evaluation layer cloud model are combined with MATLAB simulation to show that the risk level of the project is between large risk and general risk.

关键词： power transmission and transformation project risk cloud model multilevel fuzzy comprehensive evaluation smart grid

Dynamic reconfiguration for TEG systems under heterogeneous temperature distribution via adaptive coordinated seeker

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Protection and control of Modern power Systems 2022年第1期7卷 567-585页

作者： Yijun Chen Bo Yang Zhengxun Guo Jingbo Wang Mengmeng Zhu Zilin Li Tao Yu Faculty of Electric power Engineering Kunming University of Science and TechnologyKunming 650500China Electric power Research Institute of Yunnan power Grid co. LtdKunming 650217China Department of Elec-trical Engineering Hong Kong Polytechnic UniversityKowloon 999077Hong Kong SARChina college of Electric power South China University of Tech-nologyGuangzhou 510640China.

A thermoelectric generation(TEG)system has the weakness of relatively low thermoelectric conversion efficiency caused by heterogeneous temperature distribution(HgTD).Dynamic reconfiguration is an effective technique to improve its overall energy efficiency under ***,numerous combinations of electrical switches make dynamic reconfiguration a complex combinatorial optimization *** paper aims to design a novel adaptive coordinated seeker(ACS)based on an optimal configuration strategy for large-scale TEG systems with series-paral-lel connected modules under *** properly balance global exploration and local exploitation,ACS is based on'divide-and-conquer'parallel computing,which synthetically coordinates the local searching capability of tabu search(TS)and the global searching capability of a pelican optimization algorithm(POA)during *** addition,an equivalent re-optimization strategy for a reconfiguration solution obtained by meta-heuristic algorithms(MhAs)is proposed to reduce redundant switching actions caused by the randomness of *** case studies are carried out to assess the feasibility and superiority of AcS in comparison with the artificial bee colony algorithm,ant colony optimization,genetic algorithm,particle swarm optimization,simulated annealing algorithm,TS,and *** results indicate that ACS can realize fast and stable dynamic reconfiguration of a TEG system under *** addition,RTLAB platform-based hardware-in-the-loop experiments are carried out to further validate the hardware implemen-tation feasibility.

关键词： Thermoelectric generation systems Dynamic reconfiguration Heterogeneous temperature distribution Adaptive coordinated seeker

Short-TermWind power Prediction Based on combinatorial Neural Networks

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Intelligent Automation & Soft computing 2023年第8期37卷 1437-1452页

作者： Tusongjiang Kari Sun Guoliang Lei Kesong Ma Xiaojing Wu Xian School of Electrical Engineering Xinjiang UniversityUrumqi830017China Anhui Nari Jiyuan Electric power System tech co.LTD Hefei230088China

Wind power volatility not only limits the large-scale grid connection but also poses many challenges to safe grid *** wind power prediction can mitigate the adverse effects of wind power volatility on wind power grid *** the characteristics of wind power antecedent data and precedent data jointly to determine the prediction accuracy of the prediction model,the short-term prediction of wind power based on a combined neural network is ***,the Bi-directional Long Short Term Memory(BiLSTM)network prediction model is constructed,and the bi-directional nature of the BiLSTM network is used to deeply mine the wind power data information and find the correlation information within the ***,to avoid the limitation of a single prediction model when the wind power changes abruptly,the Wavelet Transform-Improved Adaptive Genetic Algorithm-Back Propagation(WT-IAGA-BP)neural network based on the combination of the WT-IAGA-BP neural network and BiLSTM network is constructed for the short-term prediction of wind ***,comparing with LSTM,BiLSTM,WT-LSTM,WT-BiLSTM,WT-IAGA-BP,and WT-IAGA-BP&LSTM prediction models,it is verified that the wind power short-term prediction model based on the combination of WT-IAGA-BP neural network and BiLSTM network has higher prediction accuracy.

关键词： Wind power prediction wavelet transform back propagation neural network bi-directional long short term memory