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动态任务环境下智能体健壮行为树控制架构设计

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系统仿真学报 2025年第1期37卷 54-65页

作者：王琪玮张琪杨硕彭勇国防科技大学系统工程学院湖南长沙410073

近年来,智能体执行任务所处环境的开放性和动态性不断增强,对智能体任务规划和行为调度的健壮性提出更高要求。行为树作为一种经典的行为控制架构,具有模块化、行为参数化、结构兼具计划表示和反应式的特点,能够有效支持智能体的行为表... 详细信息

近年来,智能体执行任务所处环境的开放性和动态性不断增强,对智能体任务规划和行为调度的健壮性提出更高要求。行为树作为一种经典的行为控制架构,具有模块化、行为参数化、结构兼具计划表示和反应式的特点,能够有效支持智能体的行为表示、决策和调度。基于通用行为树和混合式行为策略,提出一种针对动态任务环境的健壮行为树控制架构,实现智能体的审慎式决策和反应式控制。该健壮行为树控制架构结合了智能体的审慎式规划算法和反应式规则,设计了相应的行为树代码框架,并根据结构要求定制设计了规划子树和循环节点,完成树内规划与反应的切换,支持用户基于定制结构快速规范的行为树实现。通过典型攻防游戏案例中智能体对象建模与仿真,验证了所提行为树架构的合理性。相比经典反应式行为树策略,健壮行为树能够灵活进行规划执行和反应式策略切换,在典型场景中提升蓝方突防胜率至90%,缩短24.88%任务执行时长,提高了智能体行为策略有效性和建模效率。

关键词：动态环境行为树控制架构混合式行为决策节点定制路径规划

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Pt改性共晶高熵合金AlCoCrFeNi_(2.1)热腐蚀行为研究

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中国腐蚀与防护学报 2025年第1期45卷 115-126页

作者：黄勤英李彧卓阳颖飞任盼王启伟暨南大学化学与材料学院广州510632

采用真空电弧熔炼、电镀Pt和扩散渗Pt的方法制备了YHf-AlCoCrFeNi_(2.1)(YHf-EHEA)和YHfPtAlCoCrFeNi_(2.1)(YHfPt-EHEA)两种共晶高熵合金。将两种合金放置于800℃Na_(2)SO_(4)/K_(2)SO_(4)(质量分数75%∶25%)和900℃的Na_(2)SO_(4)/NaCl(质量分数75%∶25%)混合盐气氛中进行了热腐蚀实验,并通过XRD、SEM和EPMA等方法研究两种样品的热腐蚀机制。结果表明:在800℃的Na_(2)SO_(4)/K_(2)SO_(4)热腐蚀作用下,YHf-EHEA表面的氧化膜出现大面积剥落,而YHfPt-EHEA表面氧化膜完整,展现出优异的抗腐蚀能力。在900℃的Na_(2)SO_(4)/NaCl混合盐环境中,O和S向YHf-EHEA内快速扩散,并在合金内形成大量的氧化物和硫化物,加速了氧化膜的开裂和剥落行为。YHfPt-EHEA中Pt的存在减缓了S向合金内的扩散,抑制了合金的热腐蚀行为。

关键词：热腐蚀共晶高熵合金活性元素 Pt改性

Passive Ubiquitous Perception System Oriented to Aerospace-Ground Internet of Things Communication

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Journal of Communications and Information Networks 2024年第3期9卷 277-285页

作者： Hong Hong Wei Gong qiwei wang School of Electronic and Optical Engineering Nanjing University of Science and TechnologyNanjing 210094China School of Computer Science and Technology University of Science and Technology of ChinaHefei 230027China

Because the aerospace-ground Internet no longer relies on deploying infrastructure such as base stations,it has the advantage of all-weather full coverage services that traditional terrestrial networks do not ***,the traditional global navigation satellite system does not support communication *** newly developing aerospace network system is still in the construction stage,and there is no applicable solution *** communication technology is an important method to solve the contradiction between the low battery capacity of the Internet of things(IoT)node and the high energy consumption of *** is the development trend of the ***,the current passive technology based on Wi-Fi and other signals cannot achieve arbitrary communication due to the excitation signal acquisition *** solve the above two major problems,this paper proposes a passive system design for aerospace-ground IoT *** system can use the global navigation signal as excitation signal for backscatter *** the global navigation signal has the characteristics of all-weather and full coverage,this design solves the carrier acquisition problem in previous *** addition,this paper also proposes a low-power signal detection technology that can detect navigation signals with high precision on passive *** evaluate system performance through simulation *** experimental results show that the backscatter system based on global navigation satellite signals can realize efficient communication of IoT nodes.

关键词： backscatter passive IoT global navigation satellite system aerospace network

Convective Initiation by Topographically Induced Convergence Forcing over the Dabie Mountains on 24 June 2010

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Advances in Atmospheric Sciences 2016年第10期33卷 1120-1136页

作者： qiwei wang Ming XUE Zhemin TAN Key Laboratory of Mesoscale Severe Weather and School of Atmospheric Sciences Nanjing University Center for Analysis and Prediction of Storms and School of Meteorology University of Oklahoma

The initiation of convective cells in the late morning of 24 June 2010 along the eastward extending ridge of the Dabie Mountains in the Anhui region, China, is studied through numerical simulations that include local data assimilation. A primary convergence line is found over the ridge of the Dabie Mountains, and along the ridge line several locally enhanced convergence centers preferentially initiate convection. Three processes responsible for creating the overall convergence pattern are identified. First, thermally-driven upslope winds induce convergence zones over the main mountain peaks along the ridge, which are shifted slightly downwind in location by the moderate low-level easterly flow found on the north side of a Mei-yu front. Second, flows around the main mountain peaks along the ridge create further convergence on the lee side of the peaks. Third, upslope winds develop along the roughly north-south oriented valleys on both sides of the ridge due to thermal and dynamic channeling effects, and create additional convergence between the peaks along the ridge. The superposition of the above convergence features creates the primary convergence line along the ridge line of the Dabie Mountains. Locally enhanced convergence centers on the primary line cause the initiation of the first convection cells along the ridge. These conclusions are supported by two sensitivity experiments in which the environmental wind （dynamic forcing） or radiative and land surface thermal forcing are removed, respectively. Overall, the thermal forcing effects are stronger than dynamic forcing given the relatively weak environmental flow.

关键词： Dabie Mountains convective initiation low-level convergence line thermal forcing dynamic forcing

内蒙古白云鄂博矿床发现一种新的含羟基、铌-镁氧化物新矿物——福元铌矿

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岩石学报 2025年第1期41卷 1-3页

作者：佘海东范宏瑞展云翔谷湘平李晓春杨奎锋王其伟中国科学院地质与地球物理研究所矿产资源研究重点实验室北京100029 中国科学院大学地球与行星科学学院北京100049 白云鄂博稀土资源研究与综合利用全国重点实验室包头014030 江西应用科技学院宝石与矿物资源学院南昌330100

铌具有熔点高、耐腐蚀、耐磨和超导性等优点,被广泛应用于特种钢铁、超导材料和航空航天等领域,是发展低碳绿色能源产业的战略性关键金属。内蒙古白云鄂博矿床是全球最大的稀土矿床,也是中国最大的铌矿床。据统计,在该矿床已发现的矿物... 详细信息

铌具有熔点高、耐腐蚀、耐磨和超导性等优点,被广泛应用于特种钢铁、超导材料和航空航天等领域,是发展低碳绿色能源产业的战略性关键金属。内蒙古白云鄂博矿床是全球最大的稀土矿床,也是中国最大的铌矿床。据统计,在该矿床已发现的矿物达210余种,其中新矿物23种;铌矿物近31种,其中新矿物10种。福元铌矿是近期在该矿床发现的又一种新的含铌矿物,呈红褐色至褐色,板状,自形至半自形,粒度约为40~60μm,通常与鄂博铌矿、铌钙矿、烧绿石、磁铁矿及碳酸盐矿物等共生。福元铌矿是一种结构简单的含羟基、镁-铌氧化物类矿物,理想化学式Mg_(7)Nb_(6)O_(18)(OH)_(8),铌氧化物平均含量为67.3%,属于三方晶系,空间群P 3(#147)。福元铌矿是鄂博铌矿水热蚀变后的产物,且Nb_(2)O_(5)含量显著升高。福元铌矿新矿物的发现增加了白云鄂博可用铌金属选冶矿物种类,也表明了蚀变作用过程中Nb的弱迁移性。

关键词：新矿物福元铌矿含羟基铌镁氧化物白云鄂博

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基于心理账户理论的车-站-网协同优化策略

沈阳工业大学学报 2025年第1期47卷 37-44页

作者：王楚迪王琪玮马少华颜宁董雁楠李相俊李洋沈阳工业大学电气工程学院辽宁沈阳110870 新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司) 北京100192 特变电工沈阳变压器集团有限公司辽宁沈阳110027

【目的】随着电动汽车数量大幅度增长,交通运输正逐步向电气化转型。电动汽车负荷兼具有交通和电力双重属性,导致充电负荷具有更为复杂的时空随机性,使得充电负荷的变化规律更难以挖掘。而电动汽车负荷大规模无序接入电网,无疑会导致电... 详细信息

【目的】随着电动汽车数量大幅度增长,交通运输正逐步向电气化转型。电动汽车负荷兼具有交通和电力双重属性,导致充电负荷具有更为复杂的时空随机性,使得充电负荷的变化规律更难以挖掘。而电动汽车负荷大规模无序接入电网,无疑会导致电压波动过大,影响电力系统的稳定性,给配电网调度带来隐患。挖掘电动汽车用户的出行规律,并制定有效的充电引导策略势在必行。【方法】针对区域负荷分布失衡问题,提出了一种基于心理账户理论的车-站-网协同优化策略,充分考虑了用户的有限理性心理,从用户侧调控电动汽车用户的充电行为。研究立足于行为经济学,综合分析影响电动汽车用户充电决策行为的各种因素,构建单属性价值函数。在此基础上根据心理账户理论整合多维属性对属性赋权,从而构建考虑用户有限理性心理的充电决策模型。【结果】考虑电压波动指标和用户充电成本的非合作博弈电价机制,通过价格引导用户有序充电,从而在优化电网电能质量的同时降低用户充电成本,并保障充电站运营商的基本利益。仿真结果验证了所提出协同策略的有效性和优越性。【结论】提出了一种车-站-网耦合作用下有限理性充电引导策略,通过构建电网和充电用户之间的非合作博弈模型制定各充电站的实时充电价格,引导用户的充电决策行为,从而改变快充负荷的时空分布,对提高充电站运营商的效率、减少用户的等待时间、提高配电网的电能质量具有显著作用,对于平抑负荷波动、维护电网稳定和经济运行具有重要意义。本文创新点在于构建了基于心理账户的多属性有限理性充电决策模型,模拟用户有限理性心理及学习过程,将行为决策理论与电力系统、交通学深度融合,可以更高效地引导电动汽车用户有序充电,助力电网安全、稳定运行。

关键词：电动汽车充电引导协同优化非合作博弈实时电价行为经济学心理账户有限理性路-电耦合

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Review of Inductance Identification Methods Considering Inverter Nonlinearity for PMSM

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Chinese Journal of Electrical Engineering 2024年第2期10卷 1-15页

作者： qiwei wang Jiqing Xue Gaolin wang Yihua Hu Dianguo Xu School of Electrical Engineering and Automation Harbin Institute of TechnologyHarbin 150000China Department of Engineering King’s College LondonLondon WC2R 2LSUK

Permanent magnet synchronous motors(PMSMs)are widely used in high-power-density and flexible control ***,the inductance changes significantly in real-time machine operations because of magnetic saturation and coupling ***,the identification of inductance is crucial for PMSM *** inductance identification methods are primarily based on the voltage source inverter(VSI),making inverter nonlinearity one of the main error sources in inductance *** improve the accuracy of inductance identification,it is necessary to compensate for the inverter nonlinearity *** this study,an overview of the PMSM inductance identification and the related inverter nonlinearity self-learning methods are presented.

关键词： Inductance identification inverter nonlinearity self-learning permanent magnet synchronous motor

A Case Study of the Initiation of Parallel Convective Lines Back-Building from the South Side of a Mei-yu Front over Complex Terrain

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Advances in Atmospheric Sciences 2021年第5期38卷 717-736页

作者： qiwei wang Yi ZHANG Kefeng ZHU Zhemin TAN Ming XUE Key Laboratory of Mesoscale Severe Weather and School of Atmospheric Sciences Nanjing UniversityNanjing 210023China Center for Analysis and Prediction of Storms and School of Meteorology University of OklahomaNormanOK 73072USA

Parallel back-building convective lines are often observed extending to the southwest of some mesoscale convective systems(MCSs)embedded in the mei-yu front in *** convective lines with echo training behavior can quickly develop into a stronger convective group of echoes,resulting in locally heavy rainfall within the mei-yu front *** initiation mechanism of the back-building convective lines is still unclear and is studied based on high-resolution numerical simulation of a case that occurred during 27−28 June *** the present case,the new convection along the convective lines was found to be forced by nonuniform interaction between the cold outflow associated with the mei-yu front MCSs and the warm southerly airflow on the south side of the mei-yu front,which both are modified by local *** mei-yu front MCSs evolved from the western to the eastern side of a basin surrounded by several mesoscale mountains and induced cold outflow centered over the eastern part of the *** strong southwest airflow ahead of the mei-yu front passed the Nanling Mountains and impacted the cold outflow within the *** nonuniform interaction led to the first stage of parallel convective line formation,in which the low mountains along the boundary of the two airflows enhanced the heterogeneity of their ***,the convective group quickly developed from the first stage convective lines resulted in apparent precipitation cooling that enhanced the cold outflow and made the cold outflow a sharp southward *** enhanced cold outflow pushed the warm southerly airflow southward and impacted the mountains on the southeast side of the basin,where the roughly parallel mountain valleys or gaps play a controlling role in a second stage formation of parallel convective lines.

关键词： back-building convective line convective initiation complex terrain mei-yu front

Magnetic iron oxide nanoparticles accelerate osteogenic differentiation of mesenchymal stem cells via modulation of long noncoding RNA INZEB2

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Nano Research 2017年第2期10卷 626-642页

作者： qiwei wang Bo Chen Fang Ma Shikang Lin Meng Cao Yan Li Ning Gu State Key Laboratory ofBioelectronics Jiangsu Key Laboratory for Biomaterials and Devices School of Biological Sciences & Medical Engineering Southeast University Nanjing 210096 China Collaborative Innovation Center of Suzhou Nano Science and Technology Suzhou 215123 China Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education Institute of Life Sciences Southeast University Nanjing 210096 China SignalwayAntibody LLC College Park MD 20740 USA

Nanomaterials are increasingly used for biomedical applications; thus, it is important to understand their biological effects. Previous studies suggested that magnetic iron oxide nanoparticles （IONPs） have tissue-repairing effects. In the present study, we explored cellular effects of IONPs in mesenchymal stem cells （MSCs） and identified the underlying molecular mechanisms. The results showed that our as-prepared IONPs were structurally stable in MSCs and promoted osteogenic differentiation of MSCs as whole particles. Moreover, at the molecular level, we compared the gene expression of MSCs with or without IONP exposure and showed that IONPs upregulated long noncoding RNA INZEB2, which is indispensable for maintaining osteogenesis by MSCs. Furthermore, overexpression of INZEB2 downregulated ZEB2, a factor necessary to repress BMP/Smad- dependent osteogenic transcription. We also demonstrated that the essential role of INZEB2 in osteogenic differentiation was ZEB2-dependent. In summary, we elucidated the molecular basis of IONPs＇ effects on MSCs; these findings may serve as a meaningful theoretical foundation for applications of stem cells to regenerative medicine.

关键词： iron oxide nanoparticle mesenchymal stem cell osteogenic differentiation long noncoding RNA magnetogenetics nano-magnetic bioeffects