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State of health estimation for lithium-ion batteries in real-world electric vehicles

Science China(Technological Sciences) 2023年第1期66卷 47-56页

作者： WU Ji FANG LeiChao dong guangzhong LIN MingQiang School of Automotive and Transportation Engineering Hefei University of TechnologyHefei 2300o9China Engineering Research Center for Intelligent Transportation and Cooperative Vehicle-Infrastructure of Anhui Province Hefei 230009China School of Mechanical Engineering and Automation Harbin Institute of TechnologyShenzhen 518055China Quanzhou Institute of Equipment Manufacturing Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesJinjiang362200China

The state of health(SOH) plays a significant role in the mileage and safety of an electric vehicle(EV). In recent years, many methods based on data-driven analysis and laboratory measurements have been developed for SOH estimation. However, most of these proposed methods cannot be applied to real-world EVs. Here, we present a method for SOH estimation based on realworld EV data. A battery-aging evaluation health index(HI) with a strong correlation to the SOH is retrieved from battery-aging data and then modified with thermal factors to depict the former SOH. Afterward, a local weighted linear-regression algorithm is used to qualitatively characterize the declining trend of the HI, which eliminates the local HI fluctuation caused by data ***, a series of features-of-interest(FOIs) is extracted according to the battery consistency, cell-voltage extrema, and cumulative mileage, and validated using the grey relational analysis. Finally, a battery-degradation model is built using the extreme gradient-boosting algorithm with the selected FOIs. The experimental results from real-world data indicate that the proposed method has high estimation accuracy and generalization, and the maximum error is around 2% for batteries in realworld EVs.

关键词： electric vehicle state of health extreme gradient boosting battery consistency

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多业务异构网络的呼叫接纳控制

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中国科学技术大学学报 2018年第1期48卷 42-46页

作者：徐可黄海董广忠王传启中国科学技术大学信息科学技术学院安徽合肥230026

呼叫接纳控制作为异构网络系统资源管理的重要部分,直接影响整个网络资源使用的有效性,因此在异构网络环境下设计一个合理有效的接纳控制策略至关重要.考虑了异构网络中的呼叫接入问题,根据各类服务的带宽需求以及提供的利润差异,针对... 详细信息

呼叫接纳控制作为异构网络系统资源管理的重要部分,直接影响整个网络资源使用的有效性,因此在异构网络环境下设计一个合理有效的接纳控制策略至关重要.考虑了异构网络中的呼叫接入问题,根据各类服务的带宽需求以及提供的利润差异,针对其随机分布的特性,建立连续时间Markov分析模型,提出一种基于缓存的呼叫接入控制算法,并采取迭代策略对算法进行优化.仿真实验验证了算法的有效性,最终的控制策略是系统长期平均利润最大化的最优策略.

关键词：异构网络呼叫接纳控制连续时间Markov 策略优化

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基于DSP的微小型四旋翼飞行器控制系统设计

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电子技术（上海） 2013年第10期40卷 51-53,50页

作者：熊艳海董广忠王天鹏邵长星中国科学技术大学自动化系

文章针对微小型四旋翼飞行器的飞行控制系统,采用TI公司的高性能DSP TMS320F28335为控制器进行了模块化设计,系统各模块主要为控制器模块、传感测量模块、无刷直流电机调速驱动模块和无线通讯模块,文中分别对各模块的硬件和软件设计做... 详细信息

文章针对微小型四旋翼飞行器的飞行控制系统,采用TI公司的高性能DSP TMS320F28335为控制器进行了模块化设计,系统各模块主要为控制器模块、传感测量模块、无刷直流电机调速驱动模块和无线通讯模块,文中分别对各模块的硬件和软件设计做了详细介绍。

关键词：微小型四旋翼飞行器飞行控制系统 DSP 传感测量无刷直流电机

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Zein as a structural protein in gluten-free systems:an overview

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Food Science and Human Wellness 2021年第3期10卷 270-277页

作者： Xinrui Zhang Chunxia dong Yayun Hu Mengnan Gao guangzhong Luan College of Food Science and Engineering Northwest A&F UniversityYangling 712100China

Zein,a class of alcohol-soluble prolamines in maize endosperm,is mainly composed of α-zein,β-zein,andγ-*** has been recognized as a structural protein for various gluten-free systems since it can form glutenlike viscoelastic *** formation of viscoelastic zein network can make up for the structural defect of gluten-free doughs caused by the lack of *** make the most of structural functionality of zein in glutenfree foods,it is important to clearly elucidate the fundamental properties of zein *** this article,these properties have been discussed,analyzed and summarized from the relationship between protein network and structural functionality of zein,the feature and formation mechanism of zein network,factors affecting zein network and the applications of zein network in improving the quality of gluten-free *** addition,this article also looks forward to potential research areas on zein network.

关键词： Zein Gluten-free Network Glass transition

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Effects of Ti-bearing inclusions on the microstructure and mechanical properties of MAG multilayer weld metal

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Acta Metallurgica Sinica(English Letters) 2012年第1期25卷 1-9页

作者： Xin WANG Wenchao dong Shanping LU guangzhong HE Xu ZHAO Dianmai ZHOU Yiyi LI Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Changchun Railway Vehicles Co. Ltd. Changchun 130026 China

The metal active gas （MAG） multilayer weld metal consists of the columnar grain zone （CGZ） and the fine grain zone （FGZ）. Mechanical properties and microstructure of the CGZ and FGZ have been analyzed and evaluated. The inclusion with a size of 0.2-1.0 μm is typical log-normal distribution. The morphology of inclusions has been analyzed using transmission electron microscope （TEM）. With the microalloying element Ti addition, much MnTiO3 phase precipitates on the Mn-silicates matrix, which is beneficial for the nucleation of acicular ferrite （AF）. The probable mechanism for the nucleation of AF has been discussed.

关键词： Ti-bearing weld metal Inclusion MAG welding

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Super Resolution Perception for Improving Data Completeness in Smart Grid State Estimation

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Engineering 2020年第7期6卷 789-800页

作者： Gaoqi Liang Guolong Liu Junhua Zhao Yanli Liu Jinjin Gu guangzhong Sun Zhaoyang dong School of Science and Engineering Chinese University of Hong KongShenzhenShenzhen 518172China School of Computer Science and Technology University of Science and Technology of ChinaHefei 230027China Shenzhen Institute of Artificial Intelligence and Robotics for Society Shenzhen 518172China School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China School of Electrical Engineering and Telecommunications University of New South WalesSydneyNSW 2052Australia

The smart grid is an evolving critical infrastructure,which combines renewable energy and the most advanced information and communication technologies to provide more economic and secure power supply *** cope with the intermittency of ever-increasing renewable energy and ensure the security of the smart grid,state estimation,which serves as a basic tool for understanding the true states of a smart grid,should be performed with high *** complete system state data are needed to support high-frequency state *** data completeness problem for smart grid state estimation is therefore studied in this *** problem of improving data completeness by recovering highfrequency data from low-frequency data is formulated as a super resolution perception(SRP)problem in this paper.A novel machine-learning-based SRP approach is thereafter *** proposed method,namely the Super Resolution Perception Net for State Estimation(SRPNSE),consists of three steps:feature extraction,information completion,and data *** studies have demonstrated the effectiveness and value of the proposed SRPNSE approach in recovering high-frequency data from low-frequency data for the state estimation.

关键词： State estimation Low-frequency data High-frequency data Super resolution perception Data completeness

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Review of deep ultraviolet photodetector based on gallium oxide

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Chinese Physics B 2019年第1期28卷 126-142页

作者： Yuan Qin Shibing Long Hang dong Qiming He guangzhong Jian Ying Zhang Xiaohu Hou Pengju Tan Zhongfang Zhang Hangbing Lv Qi Liu Ming Liu Key Laboratory of Microelectronics Devices&Integration Technology Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China School of Microelectronics University of Science and Technology of ChinaHefei 230026China University of Chinese Academy of Sciences Beijing 100049China

Ultraviolet(UV) photodetectors(PDs) have drawn great attention in recent years due to their potential application in civil and military fields. Because of its ultrawide bandgap, low cost, strong radiation hardness, and high thermal and chemical stability with high visible-light transparency, Ga_2O_3 is regarded as the most promising candidate for UV ***, the bandgap of Ga_2O_3 is as high as 4.7–4.9 eV, directly corresponding to the solar-blind UV detection band with wavelength less than 280 nm. There is no need of doping in Ga_2O_3 to tune its bandgap, compared to AlGaN, MgZnO,etc, thereby avoiding alloy composition fluctuations and phase separation. At present, solar-blind Ga_2O_3 photodetectors based on single crystal or amorphous Ga_2O_3 are mainly focused on metal–semiconductor–metal and Schottky *** this work, the recent achievements of Ga_2O_3 photodetectors are systematically reviewed. The characteristics and performances of different photodetector structures based on single crystal Ga_2O_3 and amorphous Ga_2O_3 thin film are analyzed and compared. Finally, the prospects of Ga_2O_3 UV photodetectors are forecast.

关键词： gallium oxide ultrawide bandgap ultraviolet(UV) photodetector

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Embolizing intracranial arteriovenous malformations with Onyx: experience at a single center with 250 patients

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Journal of Interventional Medicine 2018年第3期1卷 164-169页

作者： Xianming Deng Mengqi dong Chao Peng Xiaowen Ding Kun Wang Kun Qin guangzhong Chen Department of Neurosurgery Guangdong General Hospital Institute of Neuroscience Guangdong Academy of Medical Sciences Southern Medical University

Objective The aim of this study is to evaluate the embolization techniques, as well as the effects and complications, using the non-adhesive liquid embolic material Onyx in intracranial arteriovenous malformations(AVMs). Methods The study comprises a retrospective analysis of 250 patients with intracranial AVMs treated with Onyx in Guangdong General Hospital from Jan 2010 to Dec 2017. The therapeutic strategies, as well as embolization effects and complications, of Onyx are summarized. Results Of 250 cases, 170 were male and 80 were female. Following the Spetzler–Martin(S-M) grading system, there were 35 cases of grade Ⅰ, 77 of grade Ⅱ, 72 of grade Ⅲ, 39 of grade Ⅳ, and 27 of grade V. All cases were treated with Onyx. In addition, 69 cases were treated with Glubran glue. The injected volume of Onyx per patient ranged from 1 mL to 10 mL. The largest volume of Onyx injected in one procedure was 10 mL. The cure rate was 67.9%(76/112) of grade Ⅰ-Ⅱ patients, 15.0%(11/72) of grade Ⅲ patients, 7.7%(3/39) of grade Ⅳ patients, and 0%(0/27) of grade V patients. The total cure rate was 36.0%(90/250). The average number of targeted vascular branches per patient was 2.28. The microcatheter broke off in two cases. There were two patients who suffered an intracranial hemorrhage during the embolic procedure; in one of these two patients, the microcatheter also broke off. There were two patients who suffered an intracranial hemorrhage after the embolic procedure; one of them died. Seven cases suffered new-onset neurological deficits or their original symptoms deteriorated. Six of them improved or recovered within 3–6 months. The total complication rate was 5.2%(13/250). Conclusion The application of Onyx in intracranial AVMs is flexible, effective and safe, and may also reduce the complications.

关键词： intracranial arteriovenous malformations embolization treatment treatment outcome complication Onyx

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Progress of power field effect transistor based on ultra-wide bandgap Ga_2O_3 semiconductor material

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Journal of Semiconductors 2019年第1期40卷 17-25页

作者： Hang dong Huiwen Xue Qiming He Yuan Qin guangzhong Jian Shibing Long Ming Liu Key Laboratory of Microelectronic Devices & Integration Technology Institute of Microelectronics of Chinese Academy of Sciences University of Chinese Academy of Sciences School of Microelectronics University of Science and Technology of China

As a promising ultra-wide bandgap semiconductor, gallium oxide(Ga_2O_3) has attracted increasing attention in recent years. The high theoretical breakdown electrical field(8 MV/cm), ultra-wide bandgap(～ 4.8 eV) and large Baliga's figure of merit(BFOM) of Ga_2O_3 make it a potential candidate material for next generation high-power electronics, including diode and field effect transistor(FET). In this paper, we introduce the basic physical properties of Ga_2O_3 single crystal, and review the recent research process of Ga_2O_3 based field effect transistors. Furthermore, various structures of FETs have been summarized and compared, and the potential of Ga_2O_3 is preliminary revealed. Finally, the prospect of the Ga_2O_3 based FET for power electronics application is analyzed.

关键词： gallium oxide(Ga_2O_3) ultra-wide bandgap semiconductor power device field effect transistor(FET)

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Sadtler(萨特勒)红外光谱数据库联网检索

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光谱学与光谱分析 2000年第6期20卷 825-826页

作者：何林涛涂光忠董玉霞北京微量化学研究所分析中心北京100091

本文着重介绍了sadtler红外光谱数据库以及作者单位网站www .microchem .org .cn开展的红外光谱联网检工作。

关键词： sadtler 红外光谱数据库联网检索

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