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People and Nature, Volume 8, Issue 3, Page 741-753, March 2026.Abstract Currently, scholarship on education to foster connectedness with nature primarily focuses on children. As adults likewise face the disconnection from nature and play a key role in influencing children, it is important to understand how they perceive, engage in, and benefit from relevant programmes.
Xiaoxue Chen, Zuyi Lyu, Junxi Qian
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Dianci bileiqi, 2002 按照 JB5 892 - 1 991标准对型式试验的相关规定 ,结合本公司进行产品型式试验的经验和体会 ,介绍了棒形悬式复合绝缘子型式试验所用试品、试品数量、试品的准备及注意事项 ,提出了满足试验要求而且具有经济技术合理性的方法。
侯文千, 武怀永
doaj
Factors That Influenced Coping With COVID‐19 During the Pandemic in Botswana
World Medical &Health Policy, Volume 18, Issue 1, March 2026.ABSTRACT This paper forms part of the broader Global South study, Personal and Family Coping with COVID‐19 in the Global South, which examines psychosocial and behavioral responses to the COVID‐19 pandemic. In Sub‐Saharan Africa, the pandemic posed significant psychological, social, and economic challenges, with important implications for preparedness ...
Magen Mhaka‐Mutepfa +3 more
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Gaoya dianqi, 2015 金属化膜电容器具有高储能密度、高可靠性和高寿命特点。自愈是导致电容器电容量下降的主要原因。笔者分析金属化膜的自愈特性和电容量下降机制,通过研究自愈过程中的自愈面积、自愈能量和击穿电压的关联性,得出电压幅值和电压反峰比对电容器的寿命影响程度并归纳出经验公式。通过对金属化膜电容器的寿命测试,对经验公式中的系数进行拟合。最后得出不同电压幅值和不同电压反峰比下电容器寿命经验型预测公式。
于成龙, 杜涛, 李化, 李智威
doaj
The study of one-dimensional flow analysis model of the combustor in supersonic combustion experiments [PDF]
, 2003 对公开发表的用于超声速燃烧流场分析的几种一维模型进行了研究，指出了其中存在的问题，研究结果表明：基于实验静压数据的一维模型，若不借助必要的流场测量数据或分析结果，或借助于经验性的处理方法，单靠一维假设，无法获得较为完整的一维流场分析结果。改进后的一维模型降低了数据处理过程中的不确定性，提高了对一般情况的适应能力。用编制的计算程序SSC-2对两组典型的超燃燃烧室壁面静压实验数据进行了演算 ...
俞刚, 张鹏
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Latin American Policy, Volume 17, Issue 1, March 2026.ABSTRACT The rise of ride‐hailing platforms has profoundly transformed urban mobility in Latin America over the past decade. Transportation Network Companies such as Uber, DiDi, Cabify, InDrive, and others operating in the region have affected transportation patterns and intensified debates around labor relations, algorithmic management, regulatory ...
Ronald Sáenz‐Leandro
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Study on controllable growth and surface doping of large area CVD graphene [PDF]
, 2015 对石墨烯进行一定程度的改性是开发和实现其应用不可或缺的步骤。化学方法可能是最好的方法之一，目前，基于化学改性的石墨烯开发的触摸屏、超级电容、光电器件等应用已经取得了巨大的突破，越来越多的人们开始尝试通过化学的方法改善石墨烯的某一处或几处不完美之处，探索石墨烯在更多领域的应用。在实现其广泛应用的道路上，高质量石墨烯的可控制备同样是一个急需解决的问题。 本文在铜基CVD法石墨烯制备技术基础上，利用同位素标定及Raman、SEM等表征技术，在石墨烯生长机理 ...
黄志艺
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Conservation Biology, Volume 40, Issue 1, February 2026.Abstract In the era of the sixth mass extinction, reversing global biodiversity loss is of vital importance for life on Earth. In 2022, parties to the Convention on Biological Diversity (CBD) adopted the Kunming‐Montreal Global Biodiversity Framework (GBF), a strategic plan with 23 action‐oriented targets to be achieved by 2030.
Ina Lehmann +3 more
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Numerical Simulation and Performance Analysis of a Scramjet Based on Three Dimensional Design [PDF]
, 2015 本文以超燃冲压发动机为研究对象，将其中的各部件置于整个发动机的大环境下进行了设计与性能分析。 以流线追踪三维Busemann型面作为进气道，研究了其不启动时的流场特征以及非设计点下的性能。随后将该进气道与隔离段模型相结合进行了数值模拟，结果表明增加隔离段长度可提升极限反压，但长度越长，反压比提升的幅度越小；进气道来流的影响使隔离段在反压作用下的流场呈现不均匀性，反压越高，不均匀性越强，进气道所受的压阻也越大。 在燃烧室设计过程中，以均匀来流为条件分别考察了边界层厚度、狭缝抽吸 ...
方骁远
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Police Cloud: Functional modularity in China's cloud public security infrastructure
Regulation &Governance, Volume 20, Issue 1, Page 90-104, January 2026.Abstract Globally, China's Ministry of Public Security has one of the largest appetites and regulatory scopes for new technology use in policing. Using the case study of Police Cloud—a cloud infrastructure project, this paper examines a national wave of cloud migration initiated in Shandong in 2013.
Ausma Bernot
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