Results 41 to 50 of about 1,176,567 (157)
Intangible drivers of tolerance shape human–elephant coexistence in Southwest China
People and Nature, Volume 8, Issue 8, Page 2763-2780, August 2026.Abstract Southwest China is home to a small but rapidly expanding population of Asian elephants (Elephas maximus), whose growth has intensified conflicts with people living in shared landscapes. These conflicts result in substantial economic losses and occasional human casualties. This coexistence paradox—where conservation success leads to significant
Xiaoyu Yu +4 more
wiley +1 more source
, 2021 本发明涉及无人直升机测试系统，特别涉及一种无人直升机桨发匹配测试系统。包括无人直升机旋翼系统、无人直升机发动机、无人直升机齿轮箱、交流电力测功机及在线监测模块；无人直升机齿轮箱的输入轴通过发动机扭矩转速传感器和发动机电磁离合器与无人直升机发动机连接；无人直升机齿轮箱的一输出轴通过测功机扭矩转速传感器和测功机电磁离合器与交流电力测功机连接；另一输出轴通过旋翼系统扭矩转速传感器和旋翼系统电磁离合器与无人直升机旋翼系统连接；在线监测模块接收扭矩转速传感器的检测信号及控制电磁离合器的啮合和分离 ...
杨丽英 +7 more
core
智能科学与技术学报, 2020 边缘智能计算是指将用户节点产生的计算密集型任务卸载到计算能力更强的边缘服务器上进行处理，而基于无人机的边缘智能计算是指在此基础上结合智能无人机平台，利用该平台机动性强、易于部署的优点，更加快速灵活地为地面用户设备提供边缘计算服务。此外，无人机也可作为用户节点，将其计算密集型任务卸载到地面边缘服务器上来执行。针对无人机作为用户节点和边缘服务器两种不同场景，根据最小化能耗、最小化时延和最大化效用等不同的优化目标对当前基于无人机的边缘智能计算研究进行了分类和总结，并对下一步的研究方向进行了思考与展望。
董超, 沈赟, 屈毓锛
doaj
Flexible, Robust Transparent Conductive Films With Excellent Electromagnetic Shielding Properties
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Transparent conductive films (TCFs) are indispensable components for next‐generation wearable electronics, intelligent robots, and electromagnetic interference (EMI) shielding devices. However, the fabrication of conventional random metallic mesh suffers from an inherent trade‐off between “randomness and controllability”.
Shanghao Lu +5 more
wiley +1 more source
, 2017 本发明属于无人海洋机器人领域，具体地说是一种无人海洋机器人操舵装置，包括舵承组件、舵叶及分别位于机器人载体内部的液压缸支座、后转轴、液压缸、前转轴、舵柄，液压缸支座安装在机器人载体内部，液压缸通过后转轴与液压缸支座连接；舵承组件穿过机器人载体上开设的舵承孔，并安装在机器人载体上；舵柄的一端通过前转轴与液压缸的活塞杆连接，另一端与舵承组件中的舵轴位于机器人载体内部的一端相连，舵叶安装在舵轴位于机器人载体外部的另一端连接。本发明应用平面二级杆组运动原理设计，结构设计紧凑简单、可靠性高，可承受双向轴向载荷 ...
郑荣 +4 more
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Gaoya dianqi, 2013 无人机数据链系统是无人机系统的核心组成部分,为了验证其在超宽带电磁脉冲（UWB）场环境下的安全性及可靠性,在开阔场搭建了UWB电磁脉冲辐射系统。利用UWB电磁脉冲辐射系统对无人机数据链系统进行辐照效应实验。实验结果表明:单次触发的UWB辐射场不会对无人机数据链系统产生干扰;在连续触发条件下,无人机数据链系统会出现失锁现象,此效应与触发频率和辐照场强有关,且辐照场强与触发频率成反比关系。通过分析得知,无人机数据链路系统受UWB电磁脉冲辐射场干扰的能量耦合通道为"后门"耦合。
张涛, 陈亚洲, 田庆民, 程二威
doaj
World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT In Ghana, the government has initiated a reform in rural water management to shift away from community‐based management (CBM) to state management, but research assessing the reform is still insufficient. This study aims to critically evaluate the impact of the reform in addressing rural water challenges.
Ernestina Ohenewaah Denchie, Kevin Lo
wiley +1 more source
Perceived costs as drivers of wildlife management preferences in rural Tanzanian communities
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Effectively managing human–wildlife interactions is crucial for fostering coexistence on shared landscapes. Management options are most effective when aligned with the preferences of people directly affected by wildlife, yet little is known about how socioecological factors influence these preferences.
Christian Kiffner +10 more
wiley +1 more source
Dianxin kexue随着低空无人机的广泛应用，其引发的安全隐患日益凸显，亟须构建高效、精准的无人机防御系统。基于场景驱动的设计理念，系统研究了低空无人机防御系统的部署方案。首先分析了无人机防御的背景与典型应用场景，进而阐述了探测识别、信号干扰与压制、物理拦截与控制以及数据分析等关键技术，并提出“探测-识别-评估-处置”的系统架构。结合机场安防与大型活动保障两个典型案例，深入分析了任务场景驱动下的技术实现与系统部署方式。最后，提出了系统设计的关键步骤与发展建议，为低空无人机防御系统的规划与实施提供了理论依据和实践参考。
夏勇 +4 more
doaj +4 more sources
Powerful representation of the poor? German welfare associations' narrative advocacy during COVID‐19
Policy Studies Journal, Volume 54, Issue 3, August 2026.Abstract The COVID‐19 pandemic sparked unprecedented experimentation in the German social assistance system, leading to changes previously considered impracticable by policymakers. This included a sanctions moratorium, easier access to benefits, and temporary cash transfers, all of which were advocated by welfare associations—key organized interests ...
Christopher Smith Ochoa
wiley +1 more source