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ZnO Interface Modified LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)Toward Boosting Lithium Storage

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Energy & Environmental Materials 2020年第4期3卷 522-528页

作者： Yunyan Li Xifei Li junhua hu Wen Liu Hirbod Maleki Kheimeh Sari Dejun Li Qian Sun Liang Kou Zhanyuan Tian Le Shao Cheng Zhang Jiujun Zhang Xueliang Sun Tianjin International Joint Research Center of Surface Technology for Energy Storage Materials Energy&Materials Engineering CenterCollege of Physics and Materials ScienceTianjin Normal UniversityTianjin 300387China Xi’an Key Laboratory of New Energy Materials and Devices Institute of Advanced Electrochemical Energy&School of Materials Science and EngineeringXi’an University of TechnologyXi’an 710048Shaanxi China State Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) Zhengzhou University100 Kexue AvenueZhengzhou 450001China Department of Mechanical and Materials Engineering University of Western OntarioLondonOntario N6A 5B9Canada Shaanxi Coal Chem Ind Technol Res Inst Co Ltd Xian Shaanxi 710070China Department of Chemistry College of Sciences/Institute for Sustainable EnergyShanghai UniversityShanghai 200444China

In this work,an amorphous ZnO was coated on LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)(NCM)using a sol-gel strategy method.The NCM coated with 1 wt.%Zn O and a thickness of about 3 nm exhibits an improved cycling performance,accompanied by a lower capacity fading(from 194.8 to 133.8 m Ah g^(-1),i.e.,68%)than that of the pristine one(i.e.,only 34%)after 300 cycles at 0.2 C.The cyclic voltammetry(CV)and electrochemical impedance spectroscopy(EIS)indicate that the Zn O coating can improve extraction/insertion of Li+and inhibit the increase in impedance of the NCM cathode material.This approach may benefit the performance improvement of the Ni-rich cathode materials in Lithium-ion batteries(LIBs).

关键词： cathode materials LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2) lithium-ion batteries ZnO coating

基于二阶聚类和鲁棒性随机分割森林算法的低压台区线损异常辨识

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现代电力 2024年第3期41卷 441-447页

作者：刘雄夏向阳刘定国胡军华黄瑞李泽文史子轶长沙理工大学电气与信息工程学院湖南省长沙市410114 国网湖南省电力有限公司湖南省长沙市410082 国网湖南省电力有限公司供电服务中心(计量中心) 湖南省长沙市410116 华东交通大学电气与自动化工程学院江西省南昌市330000

为精准识别台区的线损异常,保证配电网经济、稳定运行,针对台区线损的异常情况,提出一种基于二阶聚类和鲁棒性随机分割森林(robust random cut forest,RRCF)算法的台区线损异常检测方法。首先,运用二阶聚类将台区不同的运行工况进行聚类... 详细信息

为精准识别台区的线损异常,保证配电网经济、稳定运行,针对台区线损的异常情况,提出一种基于二阶聚类和鲁棒性随机分割森林(robust random cut forest,RRCF)算法的台区线损异常检测方法。首先,运用二阶聚类将台区不同的运行工况进行聚类,将相同工况的线损节点归并,然后将各类工况的节点线损数据导入RRCF算法中分析,通过删除和插入样本节点,并对插入节点后评判模型的复杂度进行计算,得到线损异常节点的评分值,进一步找出线损异常的节点。最终,通过有关实例验证所提方法的准确性与有效性。

关键词：低压台区二阶聚类 RRCF算法线损异常

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柑橘感染褐斑病过程中BAG1的作用

园艺学报 2024年第5期51卷 956-970页

作者：周慧珍张嘉胡军华李白雪曹立余歆王福生邹修平周彦西南大学柑桔研究所国家柑桔工程技术研究中心重庆400712

本研究旨在探究柑橘BAG1参与褐斑病菌(Alternaria alternata)侵染的调控机制。从‘秤砣红橘’(Citrus tangerina Hort.ex Tanaka)、‘宫本温州蜜柑’(C.unshiu Macf)、‘爱媛38’杂柑(C.reticulata Blanco)和‘金秋砂糖橘’(C.reticulata Blanco)叶片中扩增BAG1基因。BAG1蛋白相对保守,均具有Ubiquitin泛素结构域和BAG结构域,‘爱媛38’的BAG结构域存在3个新的氨基酸变动,导致侧链基团变动。上游启动子序列显示4个柑橘品种均包含相同的激素和胁迫相关顺式作用元件。系统分析显示4个柑橘品种与宽皮柑橘类BAG1蛋白聚为一支,相似度最高,与甜橙类、柚类亲缘关系较远。qRT-PCR显示在褐斑病菌THJ菌株侵染的抗、感品种上BAG1的表达差异显著。BAG1受外源Me JA、ABA和SA诱导上调表达。烟草亚细胞定位显示BAG1存在于细胞核和细胞膜中。BAG1沉默能够增强对A.alternata的抗性,过表达对A.alternata的抗性降低。表明BAG1通过参与活性氧激发和ABA、JA或SA信号途径,参与柑橘对褐斑病菌的调控。

关键词：柑橘 BAG1 褐斑病菌感病基因活性氧

地龙药材及其处方制剂散寒化湿颗粒中总砷及砷形态研究

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中草药 2024年第5期55卷 1502-1509页

作者：王书娟胡军华姚雪汪盛华周恩丽章晨峰于桂芳王振中南京中医药大学江苏南京210023 江苏康缘药业股份有限公司江苏连云港222001 中药制药过程控制与智能制造技术全国重点实验室江苏连云港222001

目的探究地龙药材至制剂过程中总砷及砷形态、价态的传递规律,以期建立地龙药材及散寒化湿颗粒(Sanhan huashi Granules,SHG)中砷含量的限度,保障SHG的安全。方法采用电感耦合等离子体质谱法(inductively coupledplasma mass spectromet... 详细信息

目的探究地龙药材至制剂过程中总砷及砷形态、价态的传递规律,以期建立地龙药材及散寒化湿颗粒(Sanhan huashi Granules,SHG)中砷含量的限度,保障SHG的安全。方法采用电感耦合等离子体质谱法(inductively coupledplasma mass spectrometry,ICP-MS)对经微波消解后的地龙药材到SHG进行总砷含量的测定;采用高效液相色谱-电感耦合等离子体质谱法(high performance liquid chromatography–inductively coupled plasma mass spectrometry,HPLC-ICP-MS)对其进行砷形态、价态的测定分析;并考察多批次SHG、不同产地地龙药材中砷总量以及各形态、价态的差异。结果地龙药材、饮片、提取液及制剂在传递过程中总砷含量呈递减趋势,阴性样品中检出极少量的砷,总砷从药材至制剂的平均转移率为52.00%,饮片到制剂中的平均转移率为60.81%;28批SHG与24批地龙中砷形态及价态存在形式及规律基本一致,即基本以毒性较大的As(Ⅲ)和As(Ⅴ)为主,其他毒性较小的有机砷含量极低甚至未检出;结合地龙药材市场供应情况、多批次地龙研究结果以及临床批制剂所用地龙的使用情况,暂拟定地龙药材中As的限度为15.00 mg/kg。基于量-值传递规律及制剂处方,暂拟定SHG中As的限度为2.50 mg/kg。结论建立的SHG中的总砷与砷形态的含量测定方法高效快速、准确性及稳定性良好。同时基于该方法初步探究了SHG中总砷及砷形态、价态的传递规律,并分别拟定地龙及SHG中砷含量的限度,为SHG的安全性及质量可控奠定基础,也为其他动物药的安全性评价与新药的研发提供参考。

关键词：散寒化湿颗粒地龙总砷高效液相联用电感耦合等离子体质谱砷形态量-值传递规律

PI-type Iterative Learning Control for Nonlinear Electro-hydraulic Servo Vibrating System

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Chinese Journal of Mechanical Engineering 2009年第3期22卷 451-455页

作者： LUO Xiaohui Zhu Yuquan hu junhua School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China

For the electro-hydraulic servo vibrating system（ESVS） with the characteristics of non-linearity and repeating motion, a novel method, PI-type iterative learning control（ILC）, is proposed on the basis of traditional PID control. By using memory ability of computer, the method keeps last time＇s tracking error of the system and then applies the error information to the next time＇s control process. At the same time, a forgetting factor and a D-type learning law of feedforward fuzzy-inferring referenced displacement error under the optimal objective are employed to enhance the systemic robustness and tracking accuracy. The results of simulation and test reveal that the algorithm has a trait of high repeating precision, and could restrain the influence of nonlinear factors like leaking, external disturbance, aerated oil, etc. Compared with traditional PID control, it could better meet the requirement of nonlinear electro -hydraulic servo vibrating system.

关键词： electro-hydraulic vibrating system PI iterative learning forgetting factor fuzzy inference

OCTA评估康柏西普联合PRP治疗sNPDR合并DME对黄斑区血流密度的影响

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上海医药 2024年第11期45卷 57-60页

作者：夏侯梨胡军华廖莹琳周伟红胡明生章颢颖傅佳琪新余市人民医院眼科新余338000

目的:分析康柏西普联合全视网膜光凝术(PRP)在重度非增殖期糖尿病视网膜病变(sNPDR)合并糖尿病性黄斑水肿(DME)患者中的效果。方法:将sNPDR合并DME患者50例(50眼)随机分为对照组和观察组,各25例(25眼)。对照组单纯行PRP治疗,观察组予以P... 详细信息

目的:分析康柏西普联合全视网膜光凝术(PRP)在重度非增殖期糖尿病视网膜病变(sNPDR)合并糖尿病性黄斑水肿(DME)患者中的效果。方法:将sNPDR合并DME患者50例(50眼)随机分为对照组和观察组,各25例(25眼)。对照组单纯行PRP治疗,观察组予以PRP+康柏西普治疗,随访至治疗后1个月。比较两组视力变化情况、黄斑区血流密度、黄斑中心凹厚度(CMT)改善情况。结果:治疗后,观察组最佳矫正视力优于对照组,CMT低于对照组,黄斑区深层毛细血管丛(DCP)血流密度高于对照组(P0.05)。结论:康柏西普联合PRP治疗sNPDR合并DME患者效果良好,可减轻黄斑水肿,增加黄斑区DCP血流密度,改善患者的视力。

关键词：重度非增殖期糖尿病视网膜病变糖尿病性黄斑水肿康柏西普全视网膜光凝术光学相干层析血管成像术最佳矫正视力

Dynamic assessment method of air target threat based on improved GIFSS

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Journal of Systems Engineering and Electronics 2019年第3期30卷 525-534页

作者： FENG Jinfu ZHANG Qiang hu junhua LIU An Aeronautics Engineering College Air Force Engineering University

As the air combat environment becomes more complicated and changeable, accurate threat assessment of air target has a significant impact on air defense operations. This paper proposes an improved generalized intuitionistic fuzzy soft set (GIFSS) method for dynamic assessment of air target threat. Firstly, the threat assessment index is reasonably determined by analyzing the typical characteristics of air targets. Secondly, after the GIFSS at different time is obtained, the index weight is determined by the intuitionistic fuzzy set entropy and the relative entropy theory. Then, the inverse Poisson distribution method is used to determine the weight of time series, and then the time-weighted GIFSS is obtained. Finally, threat assessment of five air targets is carried out by using the improved GIFSS (I-GIFSS) and comparison methods. The validity and superiority of the proposed method are verified by calculation and comparison.

关键词： threat dynamic assessment generalized intuitionistic fuzzy soft set (GIFSS) intuitionistic fuzzy entropy relative entropy inverse Poisson distribution method

Research on consensus of multi-agent systems with and without input saturation constraints

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Journal of Systems Engineering and Electronics 2021年第4期32卷 947-955页

作者： QI Duo hu junhua LIANG Xiaolong ZHANG Jiaqiang ZHANG Zhihao Air Traffic Control and Navigation College Air Force Engineering UniversityXi’an 710051China Shaanxi Province Lab.of Meta-Synthesis for Electronic&Information System Xi’an 710051China Aeronautical Engineering College Air Force Engineering UniversityXi’an 710038China

In recent years,with the continuous development of multi-agent technology represented by unmanned aerial vehicle(UAV)swarm,consensus control has become a hot spot in academic research.In this paper,we put forward a discrete-time consensus protocol and obtain the necessary and sufficient conditions for the second-order consensus of the second-order multi-agent system with a fixed structure under the condition of no saturation input.The theoretical derivation verifies that the two eigenvalues of the Laplacian of the communication network matrix and the sampling period have an important effect on achieving consensus.Then we construct and verify sufficient conditions to achieve consensus under the condition of input saturation constraints.The results show that consensus can be achieved if velocity,position gain,and sampling period satisfy a set of inequalities related to the eigenvalues of the Laplacian matrix.Finally,the accuracy and validity of the theoretical results are proved by numerical simulations.

关键词： multi-agent system consensus control input constraint distributed control

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多模态知识图谱在电力运检中的应用与展望

综合智慧能源 2024年第1期46卷 65-74页

作者：蔺家骏闫玮丹胡俊华郑一鸣邵先军郭炳延国网浙江省电力有限公司电力科学研究院杭州310011 浙江大学电气工程学院杭州310027 国网浙江省电力有限公司杭州310007

在构建以新能源为主体的新型电力系统背景下,知识图谱(KG)作为可视化的大型语义网络在电力运检中的应用处于快速发展阶段。近年来,KG在电力运检的应用主要集中在语义信息方面,然而电网运行中会产生大量异构数据,足以支撑构建多模态知识... 详细信息

在构建以新能源为主体的新型电力系统背景下,知识图谱(KG)作为可视化的大型语义网络在电力运检中的应用处于快速发展阶段。近年来,KG在电力运检的应用主要集中在语义信息方面,然而电网运行中会产生大量异构数据,足以支撑构建多模态知识图谱(MMKG),为多种下游任务提供数据支持。从电力运检的功能需求出发提出引入MMKG解决综合智能问答系统和故障处置问题,重点介绍了针对电力运检数据的MMKG构建技术,总结了MMKG能够发挥作用的电力运检功能场景,并对未来发展方向做出展望,最后深入分析了发展MMKG会面临的挑战,为电力运检智能化发展与建设提供参考。

关键词：新型电力系统知识图谱多模态电力运检故障处置人工智能大数据