智能健康穿戴产品在老年群体中展现出的巨大应用潜力和发展前景,引发学术界广泛研究探讨。为全面剖析国内外老年智能健康穿戴产品领域的研究态势,本文采用文献计量方法,通过共现、聚类及突现分析等多维手段,系统梳理与评估2013—2023年...智能健康穿戴产品在老年群体中展现出的巨大应用潜力和发展前景,引发学术界广泛研究探讨。为全面剖析国内外老年智能健康穿戴产品领域的研究态势,本文采用文献计量方法,通过共现、聚类及突现分析等多维手段,系统梳理与评估2013—2023年中国知网和Web of Science数据库收录的相关文献,借助VOSviewer和CiteSpace进行可视化呈现。结果表明:美国和中国在国际研究中占据主导地位;国内外的研究热点各有侧重,且国外已从技术设备开发与系统集成应用转向探讨老年人对技术的接受与采用;国际研究的知识基础可分为老年技术采纳评估、健康监测技术创新和智能健康管理应用三类。后续应加强工程学和医学多领域的跨学科交叉研究,在健康监测技术与医疗产品融合、用户体验优化及长期效用验证等方面进行深入探讨。展开更多
Aiming at the missile avoidance problem of the unmanned aerial vehicle(UAV)in complex obstacle environments,this work proposes a collision-avoidance method based on receding horizon optimization.The proposed method ge...Aiming at the missile avoidance problem of the unmanned aerial vehicle(UAV)in complex obstacle environments,this work proposes a collision-avoidance method based on receding horizon optimization.The proposed method generated a specific trajectory for the UAV to effectively induce the proportional navigation missile to successfully intercept the obstacle,thereby accomplishing the evasive maneuver.The evasive maneuver was divided into two distinct stages,namely the collision-inducing phase and the fast departure phase.The obstacle potential field-based target selection algorithm was employed to identify the most appropriate target obstacle,while the induced trajectory was determined through a combination of receding horizon optimization and the hp-adaptive pseudo-spectral method.Simulation experiments were carried out under three different types of obstacle environments and one multiobstacle environment,and the simulation results show that the method proposed in this paper greatly improves the success rate of UAV evasive maneuvers,proving the effectiveness of this method.展开更多
文摘智能健康穿戴产品在老年群体中展现出的巨大应用潜力和发展前景,引发学术界广泛研究探讨。为全面剖析国内外老年智能健康穿戴产品领域的研究态势,本文采用文献计量方法,通过共现、聚类及突现分析等多维手段,系统梳理与评估2013—2023年中国知网和Web of Science数据库收录的相关文献,借助VOSviewer和CiteSpace进行可视化呈现。结果表明:美国和中国在国际研究中占据主导地位;国内外的研究热点各有侧重,且国外已从技术设备开发与系统集成应用转向探讨老年人对技术的接受与采用;国际研究的知识基础可分为老年技术采纳评估、健康监测技术创新和智能健康管理应用三类。后续应加强工程学和医学多领域的跨学科交叉研究,在健康监测技术与医疗产品融合、用户体验优化及长期效用验证等方面进行深入探讨。
基金Natural Science Foundation of Heilongjiang Province of China(Grant No.YQ2022F012)the Fundamental Research Funds for the Central Universities(Grant No.HIT.OCEF.2023010)to provide fund for conducting experiments.
文摘Aiming at the missile avoidance problem of the unmanned aerial vehicle(UAV)in complex obstacle environments,this work proposes a collision-avoidance method based on receding horizon optimization.The proposed method generated a specific trajectory for the UAV to effectively induce the proportional navigation missile to successfully intercept the obstacle,thereby accomplishing the evasive maneuver.The evasive maneuver was divided into two distinct stages,namely the collision-inducing phase and the fast departure phase.The obstacle potential field-based target selection algorithm was employed to identify the most appropriate target obstacle,while the induced trajectory was determined through a combination of receding horizon optimization and the hp-adaptive pseudo-spectral method.Simulation experiments were carried out under three different types of obstacle environments and one multiobstacle environment,and the simulation results show that the method proposed in this paper greatly improves the success rate of UAV evasive maneuvers,proving the effectiveness of this method.
