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| 1 | Karyotype Stability and Unbiased Fractionation in the Paleo-Allotetraploid Cucurbita Genomes显示文摘 | Honghe Sun Shan WU Guoyu Zhang Chen Jiao Shaogui Guo Yi Ren Jie Zhang Haiying Zhang Guoyi Gong Zhangcai Jia Fan Zhang Jiaxing Tian William J. Lucas Jeff J. Doyle Haizhen Li Zhangjun Fei Yong Xu | 2017 | Molecular Plant2017，10，10： | 33 |
| 2 | Self-tuning virtual synchronous generator control for improving frequency stability in autonomous photovoltaic-diesel microgrids显示文摘This paper investigates the use of a virtual synchronous generator(VSG) to improve frequency stability in an autonomous photovoltaic-diesel microgrid with energy storage. VSG control is designed to emulate inertial response and damping power via power injection from/to the energy storage system. The effect of a VSG with constant parameters(CP-VSG) on the system frequency is analyzed. Based on the case study, self-tuning algorithms are used to search for optimal parameters during the operation of the VSG in order to minimize the amplitude and rate of change of the frequency variations. The performances of the proposed self-tuning(ST)-VSG, the frequency droop method, and the CP-VSG are evaluated by comparing their effects on attenuating frequency variationsunder load variations. For both simulated and experimental cases, the ST-VSG was found to be more efficient than the other two methods in improving frequency stability. | Rongliang SHI Xing ZHANG Chao HU Haizhen XU Jun GU Wei CAO | 2018 | Journal of Modern Power Systems and Clean Energy2018，6，3： | 27 |
| 3 | Fengyun Meteorological Satellite Products for Earth System Science Applications显示文摘Following the progress of satellite data assimilation in the 1990s, the combination of meteorological satellites and numerical models has changed the way scientists understand the earth. With the evolution of numerical weather prediction models and earth system models, meteorological satellites will play a more important role in earth sciences in the future. As part of the space-based infrastructure, the Fengyun (FY) meteorological satellites have contributed to earth science sustainability studies through an open data policy and stable data quality since the first launch of the FY-1A satellite in 1988. The capability of earth system monitoring was greatly enhanced after the second-generation polar orbiting FY-3 satellites and geostationary orbiting FY-4 satellites were developed. Meanwhile, the quality of the products generated from the FY-3 and FY-4 satellites is comparable to the well-known MODIS products. FY satellite data has been utilized broadly in weather forecasting, climate and climate change investigations, environmental disaster monitoring, etc. This article reviews the instruments mounted on the FY satellites. Sensor-dependent level 1 products (radiance data) and inversion algorithm-dependent level 2 products (geophysical parameters) are introduced. As an example, some typical geophysical parameters, such as wildfires, lightning, vegetation indices, aerosol products, soil moisture, and precipitation estimation have been demonstrated and validated by in-situ observations and other well-known satellite products. To help users access the FY products, a set of data sharing systems has been developed and operated. The newly developed data sharing system based on cloud technology has been illustrated to improve the efficiency of data delivery. | Di XIAN Peng ZHANG Ling GAO Ruijing SUN Haizhen ZHANG Xu JIA | 2021 | Advances in Atmospheric Sciences2021，38，8： | 14 |
| 4 | An Improved Virtual Inertia Algorithm of Virtual Synchronous Generator显示文摘Virtual synchronous generator(VSG)simulates the first-order motion equation of a synchronous generator(SG)with the algorithm.VSG can improve the system voltage and frequency support capabilities of a microgrid or a weak grid.It is now widely applied at a high penetration level of distributed generation(DG)systems.However,because there is a contradiction between active power steady-state deviation of VSG and dynamic impact regulation,the VSG running in grid-connected mode with existing strategies cannot meet the steady and dynamic control requirements.Thus,an improved virtual inertial control strategy of VSG is proposed in this paper.The active power impact is reduced effectively under the circumstance of damping coefficient Dωequal to 0 and a large inertia,thus the dynamic characteristic of active power is improved and its steady-state characteristic is maintained.Firstly,based on the analysis of the damping coefficient effect on the system dynamic process,two forms of improved virtual inertia algorithms are put forward by cascading a differential link into different positions of the first-order virtual inertia forward channel.Then,by comparing the characteristics of the system with the two improved algorithms,the improved virtual inertial strategy based on differential compensation is proven to be better,and the design of its parameters is analyzed.Finally,simulation and experimental results verify the effectiveness of the proposed algorithm. | Haizhen Xu Changzhou Yu Chun Liu Qinglong Wang Xing Zhang | 2020 | Journal of Modern Power Systems and Clean Energy2020，8，2： | 10 |
| 5 | An Optimal Coordination Control Strategy of Micro-Grid Inverter and Energy Storage Based on Variable Virtual Inertia and Damping of VSG显示文摘The virtual inertia and virtual damping affect both the dynamic stability of the virtual synchronous generator(VSG)and the configuration of energy storage,but there is a conflict between them while selecting the virtual inertia and virtual damping.An optimal coordination control strategy of micro-grid inverter and energy storage based on variable virtual inertia and damping is proposed to mitigate this conflict.With the integrated optimal constraint of the VSG frequency variation and the energy storage capacity,the virtual inertia and damping of VSG are configured dynamically,adopting linear quadratic optimal control.It can suppress the oscillations of the active power and frequency to improve the stability of VSG and optimally configure the energy storage capacity of VSG simultaneously.The proposed strategy aims to improve the control performance of micro-grid inverter and the system economy.The simulation and experimental results verify the effectiveness of the strategy. | Xing Zhang Fubin Mao Haizhen Xu Fang Liu Ming Li | 2017 | Chinese Journal of Electrical Engineering2017，3，3： | 10 |
| 6 | Adsorption characteristic of bensulfuron-methyl at variable added Pb^(2+) concentrations on paddy soils显示文摘The combined pollution of heavy metal Pb2+ and bensulfuron-methyl (BSM), originating from chemical herbicides, in agro- ecological environments has become commonplace in southern China. The adsorption of BSM on three paddy soils in the presence of Pb2+ was examined using high-performance liquid chromatograph (HPLC). Results indicated that adsorption of BSM could accurately be described by a Freundlich isotherm equation with correlation constant (R) > 0.98, irrespective of the presence of spiked Pb2+. Of the various factors influencing BSM sorption, soil pH appeared to be the most inffiuential. The constant Kf of Freundlich isotherm equation tended to increase with increasing Pb2+ concentration in soil which indicated that the spiked of Pb2+ in paddy soils would promote the sorption of BSM. △Gθ of BSM in three paddy soils was less than 40 kJ/mol in all treatments, indicating the adsorption of BSM is mainly physical in nature. The elution of soil dissolved organic matter (DOM) enhanced the adsorption of BSM in paddy soils. The mechanisms involved in the promotion effects of the spiked Pb2+ on BSM adsorption might be the modified surface characteristics of paddy soil solids due to the soil acidification and the increase of soil organic matter concentration because of DOM binding. | WU Weihong WANG Haizhen XU Jianming XIE Zhengmiao | 2009 | Journal of Environmental Sciences2009，21，8： | 4 |
| 7 | Overview on Resonance Characteristics and Resonance Suppression Strategy of Multi-Parallel Photovoltaic Inverters显示文摘Photovoltaic(PV)inverters have been widely used in large-scale PV power generation systems to reduce the system mismatch and increase the output power.With the increasing installed capacity of PV power stations,the number of string PV inverters increases,which brings about risk of inverter resonance and influences the quality and stability of multi-parallel inverters grid-connected system.Thus,the problems of multi-parallel inverters resonance have become a hot research topic.This paper is focused on the case of grid-connected string PV inverter systems,and the grid-connected PV inverter resonance where resonance suppression strategy will be analyzed and discussed.Firstly,the structure of string PV inverter and multi-parallel inverters system are presented.Secondly,discussions are made about the model of multi-parallel inverters system and its resonance characteristics based on the multi-input-multi-output(MIMO)system,Norton equivalent circuit and carrier synchronization.Thirdly,two strategies of^inverter level'and'system level'are provided to summarize the multi-parallel inverters resonance suppression strategy.Finally,the development tendency of resonance suppression strategy and conclusions are prospected. | Xing Zhang Changzhou Yu Fang Liu Fei Li Haizhen Xu | 2016 | Chinese Journal of Electrical Engineering2016，2，1： | 2 |
| 8 | Development of a gaseous and solid-state hybrid system for stationary hydrogen energy storage显示文摘Hydrogen can serve as a carrier to store renewable energy in large scale.However,hydrogen storage still remains a challenge in the current stage.It is difficult to meet the technical requirements applying the conventional storage of compressed gaseous hydrogen in high-pressure tanks or the solid-state storage of hydrogen in suitable materials.In the present work,a gaseous and solid-state(G-S)hybrid hydrogen storage system with a low working pressure below 5 MPa for a 10 kW hydrogen energy storage experiment platform is developed and validated.A Ti-Mn type hydrogen storage alloy with an effective hydrogen capacity of 1.7 wt%was prepared for the G-S hybrid hydrogen storage system.The G-S hybrid hydrogen storage tank has a high volumetric hydrogen storage density of 40.07 kg H_(2)m^(-3) and stores hydrogen under pressure below5 MPa.It can readily release enough hydrogen at a temperature as low as-15C when the FC system is not fully activated and hot water is not available.The energy storage efficiency of this G-S hybrid hydrogen storage system is calculated to be 86.4%-95.9%when it is combined with an FC system.This work provides a method on how to design a G-S hydrogen storage system based on practical demands and demonstrates that the G-S hybrid hydrogen storage is a promising method for stationary hydrogen storage application. | Haizhen Liu Li Xu Yu Han Xin Chen Peng Sheng Shumao Wang Xiantun Huang Xinhua Wang Chenglin Lu Hui Luo Shixuan He Zhiqiang Lan Jin Guo | 2021 | Green Energy & Environment2021，6，4： | 2 |
| 9 | Two-dimensional vanadium carbide for simultaneously tailoring the hydrogen sorption thermodynamics and kinetics of magnesium hydride显示文摘Magnesium hydride(MgH_(2))is a potential material for solid-state hydrogen storage.However,the thermodynamic and kinetic properties are far from practical application in the current stage.In this work,two-dimensional vanadium carbide(V_(2)C)MXene with layer thickness of 50−100 nm was fist synthesized by selectively HF-etching the Al layers from V_(2)AlC MAX phase and then introduced into MgH_(2) to improve the hydrogen sorption performances of MgH_(2).The onset hydrogen desorption temperature of MgH_(2) with V_(2)C addition is significantly reduced from 318℃ for pure MgH_(2) to 190℃,with a 128℃ reduction of the onset temperature.The MgH_(2)+10 wt%V_(2)C composite can release 6.4 wt%of H_(2) within 10 min at 300℃ and does not loss any capacity for up to 10 cycles.The activation energy for the hydrogen desorption reaction of MgH_(2) with V_(2)C addition was calculated to be 112 kJ mol^(−1) H_(2) by Arrhenius’s equation and 87.6 kJ mol^(−1) H_(2) by Kissinger’s equation.The hydrogen desorption reaction enthalpy of MgH_(2)+10 wt%V_(2)C was estimated by van’t Hoff equation to be 73.6 kJ mol^(−1) H_(2),which is slightly lower than that of the pure MgH_(2)(77.9 kJ mol^(−1) H_(2)).Microstructure studies by XPS,TEM,and SEM showed that V_(2)C acts as an efficient catalyst for the hydrogen desorption reaction of MgH_(2).The first-principles density functional theory(DFT)calculations demonstrated that the bond length of Mg−H can be reduced from 1.71A for pure MgH_(2) to 2.14A for MgH_(2) with V_(2)C addition,which contributes to the destabilization of MgH_(2).This work provides a method to significantly and simultaneously tailor the hydrogen sorption thermodynamics and kinetics of MgH_(2) by two-dimensional MXene materials. | Chenglin Lu Haizhen Liu Li Xu Hui Luo Shixuan He Xingqing Duan Xiantun Huang Xinhua Wang Zhiqiang Lan Jin Guo | 2022 | Journal of Magnesium and Alloys2022，10，4： | 2 |
| 10 | An areal recharge and discharge simulating method for MODFLOW 显示文摘 | Dong Yanhui Li Guomin Xu Haizhen | 2012 | Computers & Geosciences2012，42，： | 1 |
| 11 | Effect of cell fermentation time and biomass drying strategies on recovery of PHA from Alcaligenes eutrophus using a surfactant-chelate aqueous system显示文摘 | Yinguang Chen Qing Xu Haizhen Yang | 2001 | Process Biochemistry2001，36，89： | 1 |
| 12 | Distributed paral- lel computing in stochastic modeling of groundwater systems 显示文摘 | DONG Yanhui LI Ouomin XU Haizhen | 2013 | Ground Water2013，51，2： | 1 |
| 13 | CD8 + T-cell interaction with HCV replicon cells: Evidence for both cytokine- and cell-mediated antiviral activity显示文摘 | Chen Liu Haizhen Zhu Zhengkun Tu Yi-Ling Xu David R. Nelson | 2003 | Hepatology2003，，6： | 1 |
| 14 | Microbiological analysis and antibacterial effects of the indigenous fermented Puer tea显示文摘 | MO Haizhen XU Xiangqun YAN Mingchao | 2005 | Agro Food Industry Hi-Tech2005，16，6： | 1 |
| 15 | Analysis of characteristic aroma of fungal fermented Fuzhuan brick-tea by gas chromatography/mass spectrophotomctry显示文摘 | XU Xiangqun MO Haizhen YAN Mingchan ct al | 2007 | Journal of the Science of Food and Agriculture2007，87，8： | 1 |
| 16 | Effect of cell fermentation time and biomass drying strategies on recovery of poly-3-hydroxyalkanoates from Alcaligenes eutrophus using a surfactant-chelate aqueous system 显示文摘 | Chen Yinguang Xu Qing Yang Haizhen | 2001 | Process Biochem2001，36，89： | 1 |
| 17 | Detailed sorption isotherms of pentachlorophenol on soils and its correlation with soil properties显示文摘 | HE Yan Xu Jianming Wang Haizhen | 2006 | Environmental Research2006，101，3： | 1 |
| 18 | Potential contributions of clay minerals and organic matter to pentachlorophenol retention in soils显示文摘 | Yan He Jianming Xu Haizhen Wang Qichun Zhang Akmal Muhammad | 2006 | Chemosphere2006，，3： | 1 |
| 19 | Inhibition of hepatitis C virus infection by NS5A-specific aptamer显示文摘 | Xiaoyan Yu Yimin Gao Binbin Xue Xiaohong Wang Darong Yang Yuwen Qin Rong Yu Nianli Liu Li Xu Xiaohong Fang Haizhen Zhu | 2014 | Antiviral Research2014，，： | 1 |
| 20 | An areal recharge and discharge simulating method for MODFLOW显示文摘 | Yanhui Dong Guomin Li Haizhen Xu | 2011 | Computers and Geosciences2011，，： | 1 |
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