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World Medical &Health Policy, Volume 17, Issue 2, Page 231-247, June 2025.ABSTRACT During the pandemic, mobile vaccination units administered COVID‐19 shots to homebound populations. This study explores the perspectives of public healthcare providers involved in Greece's COVID‐19 home vaccination program, aiming to identify challenges and inform improvements in delivering healthcare services at home.
Dimitra Iosifina Papageorgiou +26 more
wiley +1 more source
Gaoya dianqi, 2004 提出了一种设计多断口真空断路器的新思路,即采用基于永磁操动机构的光控模块式真空断路器单元串联成为更高电压等级的多断口真空断路器。它使用光纤控制技术在低电位端对处于高电位的真空断路器的电子操动机构进行控制。最后,对光控真空模块单元中的电源系统进行了介绍。
廖敏夫, 邹积岩, 段雄英
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Including the urbanization gradient in people‐centered wildlife conservation in Amazonia
Conservation Biology, Volume 39, Issue 3, June 2025.Abstract Conservation policy in the Amazon traditionally focuses on rural areas, overlooking the socioecological roles of urban populations. This oversight can hinder sustainability by neglecting rural–urban connections. We compared the prevalence and quantity of wild meat consumed, bartered, and traded commercially in rural, peri‐urban, and urban ...
Lísley P. Lemos +3 more
wiley +1 more source
, 1996 采用表面裂纹法，利用自行研制的低温多试样拉伸装置，研究了一种航天铝合金材料的焊缝在低温下(20K)的断裂性能，并对断口进行了电镜显微分析，为提高焊接的质量提供了依据
夏源明 +4 more
core +1 more source
Gaoya dianqi, 1982 本文就多断口断路器并联均压电容器改善断口电压分布的设计进行讨论。对断口数、电容量、电容误差与电压分布间的关系,进行了计算与分析,提出了合理选用电容量及电容器的配置法,阐述了获得真实电压分布系数的方法。
张明新
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Social protection and resilience in protracted crises
International Social Security Review, Volume 78, Issue 2-3, Page 173-190, April-September 2025.Abstract This article critically examines perspectives on social protection’s role in strengthening resilience capacities in protracted crises – contexts where conflict and displacement persist for five years or longer. These crises shape how stakeholders navigate their mandates to provide support, while influencing how affected communities seek to ...
Carolina Holland‐Szyp, Jeremy Lind
wiley +1 more source
Gaoya dianqi, 1989 根据我们南京地区多年来装用的SW2—110.229,SW3—110,SW4—110、220,SW6—110、220等型少油断路器检修运行经验说明,当断口上不戴防雨帽时,不管是改进前的还是经完善化改进后的产品,都普遍存在断口有进水的现象。 对于改进前的产品,由于断口的盖帽密封结构存在薄弱环节 ...
魏本纪
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Long‐Distance Corridors Facilitate Asian Elephant Adaptation to Climate Change 长距离廊道有助于亚洲象适应气候变化
Integrative Conservation, Volume 4, Issue 1, Page 57-70, March 2025.Climate change presents significant challenges for Asian elephants, forcing them to either remain in degraded habitats or seek new ones. But, remaining would lead to resource shortages, while moving is hindered by movement barriers. This study integrates species distribution models (MaxEnt) and the minimum cumulative resistance (MCR) model to construct
Xue Lu +7 more
wiley +1 more source
Gaoya dianqi, 2019 文中以瓷柱式四断口滤波器断路器电压分布特性展开研究,建立了四断口断路器动态模型和暂态恢复电压仿真电路模型。基于Ansys仿真软件,计算了断口等效电容参数和杂散电容,通过四断口断路器等值电路分析了不同均压措施（电容、电阻、阻容串联、阻容并联）下各断口分压情况。根据静态分压计算结果选择合适的均压电容值和均压电阻值。在动态均压下,由于弧后电阻影响各断口等效参数,通过仿真得出阻容并联对多断口断路器电压分布特性的总体影响规律,提炼出并联阻容优化配置方案。在48 ...
武志恒 +5 more
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Gaoya dianqi, 2023 直流高速开关（high speed switch,HSS）作为多端柔性直流输电系统的关键设备，其可靠性具有重要意义，而断口外绝缘特性是影响HSS安全稳定运行的重要因素。文中采用有限元法针对HSS实际运行工况进行建模仿真，根据断口内绝缘及外绝缘的电场分布获得最恶劣的运行工况，研究该运行工况下HSS断口外绝缘在淋雨与污秽等环境下的电场分布特性，分析有限空间内断口加长提高外绝缘性能的可靠性。研究结果表明：实际运行过程中，HSS一侧隔离开关拒动、一侧通过阀侧接地为最恶劣的运行工况，在该运行工况下 ...
张长虹 +7 more
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