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不同供锌水平麦田小麦锌营养对土施锌肥的响应

第36届中国控制会议

作者： Xuesong Zhou Zhihao Fan Youjie Ma zhiqiang gao Key Research Laboratory for Control Theory & Applications in Complicated Systems Tianjin University of Technology Tianjin University of Technology

ISBN: (纸本)9781538629185

This paper introduces the electrical energy storage ***,it briefly expounds the significance and value of electrical energy storage technology research,analyzes the role of electrical energy storage technology,and briefly introducts electrical energy storage *** focuses on the research status of energy storage technology in micro grid,distributed generation,new energy power generation,smart grid,energy Internet and electric ***,considering the characteristics and requirements of the micro grid,distributed generation,new energy power generation,smart grid,energy Internet and electric vehicles,both some existing problems and the future development trend of electrical energy storage technology are presented..

关键词： Electrical energy storage technology micro grid distributed generation new energy power generation smart grid energy internet electric vehicles

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中国农业科学 2024年第14期57卷 2815-2826页

作者：黄婷苗陆乃昆解秉强曹寒冰乔月静杨珍平高志强李廷亮山西农业大学农学院/黄土高原特色作物优质高效生产省部共建协同创新中心西北农林科技大学资源环境学院/农业农村部西北植物营养与农业环境重点实验室山西农业大学资源环境学院

【目的】明确不同供锌麦田土壤有效锌和小麦籽粒锌含量对土施锌肥的响应，探索基于土壤有效锌实现小麦锌营养强化的调控措施，为优化田间锌肥管理、指导小麦丰产优质生产提供理论依据。【方法】在黄土高原东部的山西太谷（高锌麦田）和... 详细信息

【目的】明确不同供锌麦田土壤有效锌和小麦籽粒锌含量对土施锌肥的响应，探索基于土壤有效锌实现小麦锌营养强化的调控措施，为优化田间锌肥管理、指导小麦丰产优质生产提供理论依据。【方法】在黄土高原东部的山西太谷（高锌麦田）和万荣（低锌麦田）分别开展两年田间定位试验，设置土施锌肥0、6、12、18、24 kg Zn·hm-2，研究不同施锌量的高、低锌麦田小麦籽粒产量和锌含量、地上部锌吸收转移分配和土壤有效锌的变化特征。【结果】高、低锌麦田，土施不同量锌肥的小麦籽粒产量均无显著差异。高锌麦田，随锌肥用量增加，小麦籽粒锌含量增幅较小，第1年各处理间无显著差异。第2年，施锌处理的籽粒锌含量比不施锌增加了2.4%—11.0%；前后两年，无论施锌与否，籽粒锌含量均高于40 mg·kg-1；与不施锌相比，锌转运系数秸秆-籽粒、籽粒锌分配指数分别降低了23.9%—37.9%、4.3%—13.1%，地上部20%以上的锌残留在茎叶中。低锌麦田，籽粒锌含量和地上部各器官锌吸收量随锌肥用量增加而增加，锌转运系数秸秆-籽粒则相反；相比不施锌处理，施锌处理的两年平均籽粒锌含量增加了9.4%—23.1%，锌转运系数秸秆-籽粒降低了13.5%—24.5%，但各器官锌分配指数无显著差异。高、低锌麦田，土壤有效锌含量均随锌肥用量的增加而明显提升。回归分析表明，高锌麦田的土壤有效锌含量与籽粒锌含量呈二次曲线关系，低锌麦田为“线性+平台”关系，土壤有效锌含量增至4.12 mg·kg-1时，籽粒锌含量最高，达34.76 mg·kg-1。【结论】黄土高原东部一年一熟的小麦生产中，对于高锌麦田，应充分利用土壤有效锌，即使不施锌肥，也可实现小麦锌营养强化；低锌麦田，仅靠土施锌肥很难提升籽粒锌含量达到推荐值(40 mg·kg-1)，改善小麦锌营养可考虑通过土施锌肥使土壤有效锌含量提高至4 mg·kg-1以上，并结合其他农艺措施，如叶面喷锌等。

关键词：小麦土施锌肥土壤有效锌籽粒锌含量锌转运分配黄土高原

Safety and efficacy of Edaravone Dexborneol versus edaravone for patients with acute ischaemic stroke: a phase Ⅱ, multicentre, randomised, double-blind, multiple-dose, active-controlled clinical trial

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Stroke & Vascular Neurology 2019年第3期4卷 109-114页

作者： Jie Xu Yilong Wang Anxin Wang zhiqiang gao Xiaoping gao Huisheng Chen Junshan Zhou Xingquan Zhao Yongjun Wang Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases BeijingChina Department of Neurology The Second Affiliated Hospital of Nanjing Medical UniversityNanjingChina Department of Neurology The First Affiliated Hospital of Hunan Normal UniversityChangshaChina Department of Neurology General HospitalPLA Shenyang Military RegionShenyangChina Department of Neurology Nanjing First HospitalNanjing Medical UniversityNanjingChina

Background Edaravone Dexborneol is a novel neuroprotective agent that comprised edaravone and(+)-borneol,a food additive with an anti-inflammatory effect in animal ischaemic stroke *** study aims to assess the safety and efficacy of Edaravone Dexborneol compared with edaravone in treating patients with acute ischaemic stroke(AIS).Methods In this multicentre,randomised,double-blind,multiple-dose,active-controlled,phaseⅡclinical trial,patients with AIS within 48 hours after stroke onset were randomly assigned(1:1:1:1)to low-dose(12.5 mg),medium-dose(37.5 mg)or high-dose(62.5 mg)Edaravone Dexborneol groups,and an active control group with edaravone(30 mg)by 30 min intravenous infusion every 12 hours,for 14 consecutive *** primary efficacy outcome was the proportion of modified Rankin Scale(mRS)score≤1 at 90 days and National Institutes of Health Stroke Scale(NIHSS)score change from baseline to 14 days after *** safety outcome included any adverse event during 90 days after *** Of 385 patients included in the efficacy analysis,94 were randomised to low-dose group,97 to medium-dose group,98 to high-dose group and 96 to the control *** significant difference was observed among the four groups on mRS score(mRS≤1,p=0.4054)at 90 days or NIHSS score change at 14 days(p=0.6799).However,a numerically higher percentage of patients with mRSscore≤1 at 90 days in the medium-dose(69.39%)and high-dose(65.63%)groups was observed than in the control group(60.64%).No significant difference in severe adverse events was found among the four groups(p=0.3815).Conclusions Compared with edaravone alone,Edaravone Dexborneol was safe and well tolerated at all doses,although no significant improvement in functional outcomes was observed at 90days.

关键词： patients doses protective

Zero-Dynamics Attacks for Multi-Agent Systems Without Velocity Measurements

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Journal of Systems Science & Complexity 2024年第5期37卷 1809-1831页

作者： gao Jinming WANG Yijing ZUO zhiqiang ZHANG Wentao Tianjin Key Laboratory of Intelligent Unmanned Swarm Technology and System School of Electrical and Information Engineering Tianjin University Continental-NTU Corporate Lab School of Electrical and Electronic Engineering Nanyang Technological University

This paper studies the periodic zero-dynamics attacks(ZDAs) in multi-agent systems without velocity measurements under directed graph. Specifically, two types of attack modes are addressed,i.e., infinite number and finite number of zero-dynamics attacks. For the former case, the authors show that the consensus of the considered system cannot be guaranteed. For the latter case, the dynamic evolution of the agents is investigated and it is found that only attacking the rooted agents can destroy the consensus. Then, a sufficient condition which quantifies whether or not the consensus value is destroyed is given, revealing the relationship among parameters of system model, filter and attack ***, simulations are carried out to verify the effectiveness of the theoretical findings.

关键词： Consensus directed graph multi-agent systems zero-dynamics attacks

Study and Application of Mold Filling Simulation of Shaped Castings

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Journal of Materials Science & Technology 1997年第2期13卷 107-112页

作者： Baicheng LIU Wei QIU Houfa SHEN zhiqiang gao (Dept. of Mechanical Engineering, Tsinghua University Beijing 100084, China) Dept. of Mechanical Engineering Tsinghua University Beijing 100084 China

In this paper, an algorithm for simulating fluid flow and heat transfer for mold filling of shaped castings is presented. The main features of the algorithm include: 1) a simple but practical technique based on VOF method to determine free surface, 2) an explicit scheme of enthalpy to solve the energy equation more efficiently, and 3) an effective treatment to modify the flux deviation due to pressure iteration. In order to verify these methods, well controlled experiments have been repeatedly done with both water analog and gray iron pouring experiments to record the flow patterns and temperature variations. The calculated results are in accordance with the experimental ones. For the applications, the simulated initial temperature distribution right after mold filling was used to analyse subsequent solidification and to predict shrinkage defects. Actual castings were poured and tested in a foundry plant. The reuslts show that the defects predication with considering fluid flow effects is more precise than that without considering the effects.

关键词： Simulation Study and Application of Mold Filling Simulation of Shaped Castings Mold

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A thermal stable cathode buffer based on an inexpensive tetranuclear zinc(Ⅱ) complex for organic photovoltaic devices

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Science China Chemistry 2012年第12期55卷 2562-2566页

作者： LI ZhiGang gao zhiqiang WANG HaiShan ZHANG Hui ZHAO XinYan MI BaoXiu HUANG Wei Jiangsu Engineering Centre for Flat-Panel Displays&Solid-state Lighting and School of Materials Science&Engineering Nanjing University of Posts&Telecommunications Nanjing 210046China Key Laboratory for Organic Electronics&Information Displays(KLOEID)and Institute of Advanced Materials(IAM) Nanjing University of Posts&TelecommunicationsNanjing 210046China

An inexpensive material, i.e., tetranuclear zinc（Ⅱ） complex, （Zn40（A/D）6） [AID = 7-azaindolate], was utilized as a cathode buffer in organic photovoltaic （OPV） devices, leading to the improvement of device performance. Compared to OPV devices based on a conventional cathode buffer of TPBi （1,3,5-tris（2-N-phenylbenzimidazolyl）benzene）, although the freshly prepared devices showed similar performance, when heated to a series of high temperatures under air, the short circuit current and the open circuit voltage of the Zn40（AID）6 devices dropped more slowly, indicating the superiority of using Zn40（AID）6 as a cathode buffer over TPBi in OPV devices.

关键词： organic photovoltaic devices thermal stability inexpensive cathode buffer layer

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Toward Intelligent Machine Tool

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Engineering 2019年第4期5卷 679-690页

作者： Jihong Chen Pengcheng Hu Huicheng Zhou Jianzhong Yang Jiejun Xie Yakun Jiang zhiqiang gao Chenglei Zhang National Numerical Control System Engineering Research Center Huazhong University of Science and TechnologyWuhan 430074China

With the development of modern information technology-and particularly of the new generation of artificial intelligence(AI)technology-new opportunities are available for the development of the intelligent machine tool(IMT).Based on the three classical paradigms of intelligent manufacturing as defined by the Chinese Academy of Engineering,the concept,characteristics,and systemic structure of the IMT are presented in this *** stages of machine tool evolution-from the manually operated machine tool(MOMT)to the IMT-are discussed,including the numerical control machine tool(NCMT),the smart machine tool(SMT),and the ***,the four intelligent control principles of the IMT-namely,autonomous sensing and connection,autonomous learning and modeling,autonomous optimization and decision-making,and autonomous control and execution-are presented in *** paper then points out that the essential characteristic of the IMT is to acquire and accumulate knowledge through learning,and presents original key enabling technologies,including the instruction-domain-based analytical approach,theoretical and big-data-based hybrid modeling technology,and the double-code control *** on this research,an intelligent numerical control(INC)system and industrial prototypes of IMTs are *** intelligent practices are conducted,demonstrating that the integration of the new generation of AI technology with advanced manufacturing technology is a feasible and convenient way to advance machine tools toward the IMT.

关键词： Intelligent manufacturing Intelligent machine tool Intelligent numerical controller New-generation artificial intelligence

Wasserstein-1 Distance and Nonuniform Berry-Esseen Bound for a Supercritical Branching Process in a Random Environment

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Journal of Mathematical Research with Applications 2023年第6期43卷 737-753页

作者： Hao WU Xiequan FAN zhiqiang gao Yinna YE Center for Applied Mathematics Tianjin University School of Mathematics and Statistics Northeastern University at Qinhuangdao Laboratory of Mathematics and Complex Systems School of Mathematical SciencesBeijing Normal University Department of Applied Mathematics School of Mathematics and PhysicsXi'an Jiaotong-Liverpool University

Let(Zn)n≥0be a supercritical branching process in an independent and identically distributed random environment. We establish an optimal convergence rate in the Wasserstein-1 distance for the process(Zn)n≥0, which completes a result of Grama et al. [Stochastic ***., 2017, 127(4): 1255–1281]. Moreover, an exponential nonuniform Berry-Esseen bound is also given. At last, some applications of the main results to the confidence interval estimation for the criticality parameter and the population size Znare discussed.

关键词： Branching processes Random environment Wasserstein-1 distance Nonuniform Berry-Esseen bounds

Crystalline Structure-Dependent Mechanical and Thermoelectric Performance in Ag_(2)Se_(1‐x)S_(x)System

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Research 2020年第1期2020卷 1089-1098页

作者： Jiasheng Liang Pengfei Qiu Yuan Zhu Hui Huang zhiqiang gao Zhen Zhang Xun Shi Lidong Chen State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Division of Solid-State Electronics Department of Electrical EngineeringUppsala UniversityUppsalaSweden School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China

Self-powered wearable electronics require thermoelectric materials simultaneously with a high dimensionless figure of merit(zT)and good flexibility to convert the heat discharged by the human body into ***_(2)(S,Se)-based semiconducting materials can well satisfy these requirements,and thus,they are attracting great attention in thermoelectric society ***_(2)(S,Se)crystalizes in an orthorhombic structure or monoclinic structure,depending on the detailed S/Se atomic ratio,but the relationship between its crystalline structure and mechanical/thermoelectric performance is still unclear to *** this study,a series of Ag_(2)Se_(1-x)S_(x)(x=0,0.1,0.2,0.3,0.4,and 0.45)samples were prepared and their mechanical and thermoelectric performance dependence on the crystalline structure was systematically investigated.x=0:3 in the Ag_(2)Se_(1-x)S_(x)system was found to be the transition boundary between orthorhombic and monoclinic *** property measurement shows that the orthorhombic Ag_(2)Se_(1-x)S_(x)samples are brittle while the monoclinic Ag_(2)Se_(1-x)S_(x)samples are ductile and *** addition,the orthorhombic Ag_(2)Se_(1-x)S_(x)samples show better electrical transport performance and higher zT than the monoclinic samples under a comparable carrier concentration,most likely due to their weaker electron-phonon *** study sheds light on the further development of flexible inorganic TE materials.

关键词： ductile crystalline attracting