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基于复杂适应性理论的无人机作战试验交互协作问题研究

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舰船电子工程 2024年第4期44卷 6-10,27页

作者：胡景博杨克巍蒋平姜江国防科技大学系统工程学院长沙410073 中国人民解放军63969部队南京211113

复杂适应性系统理论(简称CAS)是研究复杂性巨系统的有效方法。针对无人机装备特性和开展作战试验时的复杂特征,从无人机作战试验的主体、特征、机制三个方面阐述了无人机作战试验中交互协作与复杂适应性系统的一致性,说明了无人机作战... 详细信息

复杂适应性系统理论(简称CAS)是研究复杂性巨系统的有效方法。针对无人机装备特性和开展作战试验时的复杂特征,从无人机作战试验的主体、特征、机制三个方面阐述了无人机作战试验中交互协作与复杂适应性系统的一致性,说明了无人机作战试验是典型的复杂适应性系统。基于复杂适应系统理论,分析参试单位在开展无人机作战试验过程中的聚集、非线性、流、多样性特征以及标识、内部模型和积木机制,为不同专业领域和思维层次的人员进行有效交互协作,顺畅试验进程最终涌现出结论性成果,提出优化试验方法和管理水平的实施策略。

关键词：复杂适应系统理论无人机作战试验交互协作

A scenario construction and similarity measurement method for navy combat search and rescue

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Journal of Systems Engineering and Electronics 2020年第5期31卷 957-968页

作者： ZHAO Qingsong DING Junyi GUO Yu LIU Peng yang kewei College of Systems Engineering National University of Defense TechnologyChangsha 410073China

Navy combat search and rescue(NCSAR) is an important component of the modern maritime warfare and the scenario of NCSAR is the basis for decision makers to rely on. According to the core elements in the NCSAR process, the NCSAR scenario structure is constructed from seven perspectives based on the multi-view architecture framework. According to the NCSAR scenarios evolution over time, the NCSAR scenario sequence is analyzed and modeled based on the concept lattice method. Then,the incremental construction algorithm of the NCSAR scenario sequence lattice is given. On this basis, the similarity measurement index of NCSAR scenarios is defined, and the similarity measurement model of NCSAR scenarios is proposed. Finally, the rationality of the method is verified by an example analysis. The NCSAR scenario and similarity measurement method proposed can provide scientific guidance for rapid making, dynamic adjustment and implementation of the NCSAR program, and thus improve the efficiency and effectiveness of NCSAR.

关键词： navy combat search and rescue(NCSAR) scenario similarity measurement concept lattice

PFNA治疗伴或不伴外侧壁损伤的股骨粗隆间骨折的效果分析

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蚌埠医学院学报 2024年第7期49卷 866-869页

作者：付建国朱剑杨可为徐闯蚌埠医科大学研究生院安徽蚌埠233030 蚌埠医科大学附属泰兴市人民医院骨科江苏泰兴225400

目的:分析探讨股骨近端防旋髓内钉(PFNA)治疗股骨粗隆间骨折(IFF)的效果是否与股骨外侧壁(简称外侧壁)的完整性有关。方法:回顾性分析采用PFNA治疗IFF病人的临床资料。根据术前、术中、术后等影像学资料显示的外侧壁情况进行分组,分为... 详细信息

目的:分析探讨股骨近端防旋髓内钉(PFNA)治疗股骨粗隆间骨折(IFF)的效果是否与股骨外侧壁(简称外侧壁)的完整性有关。方法:回顾性分析采用PFNA治疗IFF病人的临床资料。根据术前、术中、术后等影像学资料显示的外侧壁情况进行分组,分为外侧壁完整组(A组)和外侧壁损伤组(B组)(包括医源性外侧壁损伤),收集并比较2组病人的基线资料、术中和术后资料,探讨外侧壁完整性与PFNA手术效果之间的关系。结果:2组病人基线资料、尖顶距(TAD)值比较,差异均无统计学意义(P>0.05)。2组病人术中出血量、手术时间、切口长度、并发症发生率、术后6、12个月Harris髋关节功能评分优良率比较,差异有统计学意义(P<0.05~P<0.01)。结论:PFNA手术治疗IFF的效果与外侧壁的情况密切相关,外侧壁完整组较外侧壁损伤组病人手术效果好。术中应积极保护外侧壁避免发生医源性损伤。

关键词：股骨粗隆间骨折外侧壁股骨近端防旋髓内钉

Complex systems and network science:a survey

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Journal of Systems Engineering and Electronics 2023年第3期34卷 543-573页

作者： yang kewei LI Jichao LIU Maidi LEI Tianyang XU Xueming WU Hongqian CAO Jiaping QI Gaoxin College of Systems Engineering National University of Defense TechnologyChangsha 410073China

Complex systems widely exist in nature and human *** are complex interactions between system elements in a complex system,and systems show complex features at the macro level,such as emergence,self-organization,uncertainty,and *** complex features make it difficult to understand the internal operation mechanism of complex *** modeling of complex systems is a favorable means of understanding complex *** not only represents complex interactions but also reflects essential attributes of complex *** paper summarizes the research progress of complex systems modeling and analysis from the perspective of network science,including networked modeling,vital node analysis,network invulnerability analysis,network disintegration analysis,resilience analysis,complex network link prediction,and the attacker-defender game in complex *** addition,this paper presents some points of view on the trend and focus of future research on network analysis of complex systems.

关键词： complex system complex network invulnerability and resilience network disintegration link prediction attackerdefender game theory

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深度强化学习及其在军事领域中的应用综述

系统工程与电子技术 2024年第4期46卷 1297-1308页

作者：张梦钰豆亚杰陈子夷姜江杨克巍葛冰峰国防科技大学系统工程学院湖南长沙410003

随着大数据、云计算、物联网等一系列新兴技术的大量涌现,人工智能技术不断取得突破性进展。深度强化学习(deep reinforcement learning,DRL)技术作为人工智能的最新成果之一,正被逐渐引入军事领域中,促使军事领域走向信息化和智能化。... 详细信息

随着大数据、云计算、物联网等一系列新兴技术的大量涌现,人工智能技术不断取得突破性进展。深度强化学习(deep reinforcement learning,DRL)技术作为人工智能的最新成果之一,正被逐渐引入军事领域中,促使军事领域走向信息化和智能化。在未来战争作战模式及军队发展建设中,网络化、信息化、智能化和无人化形成重要特征,已经成为不可逆转的趋势。因此,在回顾了DRL基本原理和主要算法的基础上,对当前DRL在武器装备、网络安全、无人机(unmanned aerial vehicle,UAV)编队、智能决策与博弈等方面的应用现状进行了系统的梳理与总结。最后,针对实际推进DRL技术在军事领域应用落地所面临的一系列问题和挑战,提供了未来进一步研究的思路。

关键词：深度强化学习军事应用智能决策发展趋势

Lateral earth pressure of granular backfills on retaining walls with expanded polystyrene geofoam inclusions under limited surcharge loading

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第4期16卷 1388-1397页

作者： kewei Fan Guangqing yang Weilie Zou Zhong Han yang Shen Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering Hohai UniversityNanjing210098China School of Civil Engineering Wuhan UniversityWuhan430072China State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures Shijiazhuang Tiedao UniversityShijiazhuang050043China

Existing studies have focused on the behavior of the retaining wall equipped with expanded polystyrene(EPS)geofoam inclusions under semi-infinite surcharge loading rather than limited surcharge *** this paper,the failure mode and the earth pressure acting on the rigid retaining wall with EPS geofoam inclusions and granular backfills(henceforth referred to as EPS-wall),under limited surcharge loading are investigated through two-and three-dimensional model *** testing results show that different from the sliding of almost all the backfill in the EPS-wall under semi-infinite surcharge loading,only an approximately triangular backfill slides in the wall under limited surcharge *** distribution of the lateral earth pressure on the EPS-wall under limited surcharge loading is non-linear,and the distribution changes from the increase of the wall depth to the decrease with the increase of the limited surcharge *** approach based on the force equilibrium of a differential element is developed to predict the lateral earth pressure behind the EPS-wall subjected to limited surcharge loading,and its performance was fully validated by the three-dimensional model tests.

关键词： Retaining wall Expanded polystyrene(EPS)geofoam Limited surcharge loading Lateral earth pressure Model test Prediction

Review on the design of high-strength and hydrogen-embrittlement-resistant steels

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1572-1589页

作者： Zhiyu Du Rongjian Shi Xingyu Peng kewei Gao Xiaolu Pang Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China Institute for Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110010China

Given the carbon peak and carbon neutrality era,there is an urgent need to develop high-strength steel with remarkable hydrogen embrittlement *** is crucial in enhancing toughness and ensuring the utilization of hydrogen in emerging iron and steel ***,the pursuit of enhanced metallic materials presents a cross-disciplinary scientific and engineering *** high-strength,toughened steel with both enhanced strength and hydrogen embrittlement(HE)resistance holds significant theoretical and practical *** ensures secure hydrogen utilization and further carbon neutrality objectives within the iron and steel *** on the design principles of high-strength steel HE resistance,this review provides a comprehensive overview of research on designing surface HE resistance and employing nanosized precipitates as intragranular hydrogen *** also proposes feasible recommendations and prospects for designing high-strength steel with enhanced HE resistance.

关键词： hydrogen embrittlement surface design hydrogen traps nanosized precipitates

An Architectural Approach for Capability Mapping and Gap Analysis

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Journal of Systems Science and Information 2013年第1期1卷 86-96页

作者： kewei yang Bingfeng GE Qingsong ZHAO Jiang JIANG Science and Technology on Complex Systems Simulation Laboratory National University of Defense Technology College of Information System and Management

To cope with the increasing complexity and constantly changing capability requirements of system-of-systems, an architectural approach for capability mapping and gap analysis is ***, a more specific architecture framework is presented. Secondly, on the basis of the analysis of the semantic relationships between constituent architecture data elements, a capability mapping approach is proposed to manage the relations between capabilities and systems based on the mapping matrixes representing associations of core entities. Then, a four-step capability mapping process for the mapping from capabilities to systems is suggested. Moreover, the capability gap analysis on how to identify and fill the capability gaps is also studied. Finally, an example of specific Net-Centric Warfare mission of Precision Engagement is used to illustrate the feasibility of the approach.

关键词： system-of-systems capability architecture description mapping matrixes core entities gap analysis

Demonstration of acousto-optical modulation based on a thin-film AlScN photonic platform

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Photonics Research 2024年第6期12卷 1138-1149页

作者： kewei BIAN ZHENYU LI YUSHUAI LIU SUMEI XU XINGYAN ZHAO yang QIU YUAN DONG QIZE ZHONG TAO WU SHAONAN ZHENG TING HU School of Microelectronics Shanghai UniversityShanghai 201800China School of Information Science and Technology ShanghaiTech UniversityShanghai 201210China Shanghai Institute of Microsystem and Information Technology Chinese Academy of SciencesShanghai 200050China University of Chinese Academy of Sciences Beijing 100049China

Acousto-optic(AO)modulation technology holds significant promise for applications in microwave and optical signal ***-film scandium-doped aluminum nitride(AlScN),with excellent piezoelectric properties and a wide transparency window,is a promising candidate for achieving on-chip AO modulation with a fabri-cation process compatible with complementary metal-oxide-semiconductor(CMOS)*** study presents,to the best of our knowledge,the first demonstration of AO modulators with surface acoustic wave generation and photonic waveguides monolithically integrated on a 400-nm-thick film of AlScN on an *** intramodal AO modulation is realized based on an AlScN straight waveguide,and the modulation efficiency is significantly enhanced by 12.3 dB through the extension of the AO interaction length and the utilization of bidirectional acoustic *** intermodal AO modulation and non-reciprocity are further demonstrated based on a multi-mode spiral waveguide,achieving a high non-reciprocal contrast(>10 dB)across an optical bandwidth of 0.48 *** research marks a significant stride forward,representing an advancement in the realization of microwave photonic filters,magnet-free isolators,and circulators based on the thin-film AlScN photonic platform.

关键词： waveguide film microwave