Liqun Liu

ORCID: 0000-0002-8103-2308
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About
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Research Areas
  • Photovoltaic System Optimization Techniques
  • Air Quality and Health Impacts
  • Power Systems and Renewable Energy
  • Climate Change and Health Impacts
  • solar cell performance optimization
  • Metaheuristic Optimization Algorithms Research
  • Solar Radiation and Photovoltaics
  • Energy and Environment Impacts
  • Microgrid Control and Optimization
  • Advanced Multi-Objective Optimization Algorithms
  • Remote Sensing and Land Use
  • Energy Efficient Wireless Sensor Networks
  • Hydrology and Watershed Management Studies
  • Global Health Care Issues
  • Industrial Vision Systems and Defect Detection
  • Water resources management and optimization
  • Industrial Technology and Control Systems
  • Spectroscopy and Chemometric Analyses
  • Advanced Image Fusion Techniques
  • Advanced Computational Techniques and Applications
  • Vehicle Routing Optimization Methods
  • Hydrological Forecasting Using AI
  • Solar Thermal and Photovoltaic Systems
  • Robotic Path Planning Algorithms
  • Advanced Algorithms and Applications

Gansu Agricultural University
2011-2025

Taiyuan University of Science and Technology
2008-2025

Central South University
2008-2024

Second Xiangya Hospital of Central South University
2008-2024

Northeast Petroleum University
2009-2023

Chinese Academy of Medical Sciences & Peking Union Medical College
2017-2023

Peking Union Medical College Hospital
2023

Tongji University
2018-2023

Lanzhou Jiaotong University
2023

Guangxi University
2021-2022

Retired electric vehicle lithium batteries can be used in microgrids to fully utilize the remaining capacity of batteries. Due differences service life and usage environment, state charge (SOC) retired battery packs are difficult completely consistent. SOC balancing is an important means extend lifespan (RLB). However, traditional virtual synchronous generator (VSG) control scheme existing VSG-based fail achieve non-equal RLB VSG-controlled microgrids. Therefore, a VSG control-based for...

10.1109/access.2025.3527462 article EN cc-by IEEE Access 2025-01-01

Associations between air temperature and mortality have been consistently observed in Europe the United States; however, there is a lack of studies for Asian countries. Our study investigated association cardio-respiratory urban area Beijing, China. Death counts cardiovascular respiratory diseases adult residents (≥15 years), meteorological parameters concentrations particulate pollution were obtained from January 2003 to August 2005. The effects two-day 15-day average temperatures estimated...

10.1186/1476-069x-10-51 article EN cc-by Environmental Health 2011-05-25

Abstract. A long-lived gravity wave (GW) in the atmospheric boundary layer (ABL) is analysed during a field experiment Anqing, China (30∘37′ N, 116∘58′ E). Persistent GWs with periods ranging from 10 to 30 min over h ABL within 2 km height are detected by coherent Doppler lidar 4 5 September 2018. The amplitudes of vertical wind due these approximately 0.15–0.2 m s−1. lifetimes longer than 20 cycles. There no apparent phase progression altitude. and zonal perturbations 90∘ out phase,...

10.5194/acp-19-15431-2019 article EN cc-by Atmospheric chemistry and physics 2019-12-17

The output characteristics of multiple photovoltaic (PV) arrays at partial shading are characterized by steps and peaks. This makes that the maximum power point tracking (MPPT) a large scale PV system becomes difficult task. conventional MPPT control method was unable to track (MPP) under random conditions, making efficiency is low. To overcome this difficulty, in paper, an improved with better performance based on genetic algorithm (GA) adaptive particle swarm optimization (APSO) proposed...

10.1115/1.4007940 article EN Journal of Energy Resources Technology 2012-12-12

Recurrent convulsions can cause irreversible astrocyte death, impede neuron regeneration, and further aggravate brain damage. MicroRNAs have been revealed as players in the progression of numerous diseases including cancer Alzheimer's disease. Particularly, microRNA has found linked to seizure-induced neuronal death. In this study, a rat model recurrent induced by flurothyl treatments was utilised assess alterations expressions hippocampus tissues. We also applied an vitro which primary...

10.1186/s12868-016-0291-6 article EN cc-by BMC Neuroscience 2016-08-11

Zhe Zhao, Yudong Li, Cheng Hou, Jing Rong Tian, Weijie Liu, Yiren Chen, Ningyuan Sun, Haoyan Weiquan Mao, Han Guo, Weigang Gou, Taiqiang Wu, Tao Zhu, Wenhang Shi, Chen Shan Huang, Sihong Liqun Feifei Xiaoshuai Xingwu Zhanhui Kang, Xiaoyong Du, Linlin Shen, Kimmo Yan. Proceedings of the 61st Annual Meeting Association for Computational Linguistics (Volume 3: System Demonstrations). 2023.

10.18653/v1/2023.acl-demo.20 article EN cc-by 2023-01-01

The current image registration models have problems such as low feature point matching accuracy, high memory consumption, and significant computational complexity in heterogeneous registration, especially complex environments. In this context, differences lighting leaf occlusion orchards can result inaccurate extraction during registration. To address these issues, study proposes an AD-ResSug model for First, a VGG16 network was included the encoder system, positional encoding embedded into...

10.3390/agronomy15040889 article EN cc-by Agronomy 2025-04-02

An efficient Maximum Power Point Tracking (MPPT) algorithm is important to increase the output efficiency of a photovoltaic (PV) generate system. The conventional perturbation and observation (PO) MPPT impossible quickly acquire maximum power point (MPP), tracking course very difficulty under veil weather conditions, essential reason not known actual values n Io. It well-known that different solar cells have Theoretical simulative results show piece cell has same photocurrent Io conditions....

10.1109/iciea.2009.5138752 article EN 2009-05-01

Ionic polymer–metal composite (IPMC), also called artificial muscle, is an EAP material which can generate a relatively large deformation with low driving voltage (generally less than 5 V). Like other materials, IPMC possesses strong nonlinear properties, be described as hybrid of back-relaxation (BR) and hysteresis characteristics, vary water content, environmental temperature even the usage consumption. Nowadays, many control approaches have been developed to tune actuators, among adaptive...

10.1088/0964-1726/22/9/095027 article EN Smart Materials and Structures 2013-08-29

Parameter optimization of a hydrological model is intrinsically high dimensional, nonlinear, multivariable, combinatorial problem which involves set different objectives. Currently, the assessment results for usually made through calculations and comparisons objective function values simulated observed variables. Thus, proper selection functions’ combination parameter has an important impact on forecasting. There exist various functions, how to analyze evaluate combinations selecting optimal...

10.1155/2020/8594727 article EN cc-by Computational Intelligence and Neuroscience 2020-03-10

Parameter optimization and calibration of the hydrological model has been one important research fields in forecasting. This paper is written to address inherent defects that traditional parameter Xinanjiang with a single objective entails. These methods cannot fully exploit characteristics information from observation. We selected Nash Sutcliffe coefficient, which known be biased for high flows logarithmic form coefficient emphasize low-flow values as functions. Then, we adopted...

10.3233/jcm-160647 article EN Journal of Computational Methods in Sciences and Engineering 2016-09-06

To optimize Agrobacterium-mediated transient transformation assay in mulberry (Morus alba L.), various infiltration methods, Agrobacterium tumefaciens (A. tumefaciens) strains, and bacterial concentrations were tested seedlings. Compared with LBA4404, GV3101 harboring pBE2133 plasmids presented stronger GUS signals at 3 days post using syringe. Recombinant pBE2133:GFP pBE2133:GFP:MaFT successfully constructed. Transient expression of MaFT:GFP protein was found leaves, petiole (cross...

10.1080/09168451.2015.1025691 article EN Bioscience Biotechnology and Biochemistry 2015-05-29

First, a novel current calculated (CC) principle is discussed in the study of characteristics photovoltaic (PV) array under partial shading irradiation conditions. In this paper, particle swarm optimization maximum power point tracking (MPPT) control method integrates with proposed to realize rapid and accurate efficiency for PV The CC used as tool effects distribution multiple peaks. addition, combined MPPT easy gain global peak arrays at complex shading. experimental simulation results...

10.1063/1.4858615 article EN Journal of Renewable and Sustainable Energy 2013-11-01

This paper proposes an improved Harmony Search algorithm, and gives the definition of Global Sharing Factor (HS) algorithm. In definition, number creations HS algorithm is applied to sharing factor calculated. this natural harmony encoding method used encode initial harmony, total path length all vehicles taken as optimization objective function. A new generation strategy proposed follows: each tone component in evolution calculated separately using learning update strategy. calculation...

10.3390/info11020086 article EN cc-by Information 2020-02-05
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