Results 41 to 50 of about 743,555 (140)
GHK‐Cu Delays Aging Through the Repair of Mitochondrial Dysfunction
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Althugh glycyl‐L‐histidyl‐L‐lysine copper (GHK‐Cu) shows antiaging potential, its precise molecular mechanisms remain unclear. Using Caenorhabditis elegans (C. elegans) as an in vivo aging model, we observed that GHK‐Cu extended organismal lifespan and improved stress resilience.
Haoquan Yu +8 more
wiley +1 more source
, 2017 <p>目前建筑行业普遍采用现浇后张法预应力混凝土结构，这种技术通过预埋管道、张拉、穿筋、灌浆等施工工序为混凝土结构建立预应力已达到设计标准和要求。本文简要探讨现浇后张法预应力施工过程中存在的问题及相应的预防措施和解决方案。</p>
国平 唐
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World Food Policy, Volume 12, Issue 2, November 2026.ABSTRACT Household food expenditure continues to be a key factor in ensuring the realization of the Human Right to Adequate Food. Particularly in Brazil, access to food can be limited by economic constraints in vulnerable families, especially among farming families, who have been more vulnerable to food insecurity in recent years in the country.
Lucas de Almeida Moura +3 more
wiley +1 more source
World Water Policy, Volume 12, Issue 4, November 2026.ABSTRACT Biochemical oxygen demand (BOD) remains a core indicator of organic pollution in freshwater monitoring, but its role in water policy and practice is changing as water‐quality assessment moves toward predictive, integrative, and decision‐support approaches.
Isadora Favero Roque Cenci +5 more
wiley +1 more source
, 2017 文章结合某高架桥，对现浇预应力连续箱梁在桥梁工程中的应用进行分析，阐述了高架桥工程应用现浇预应力连续箱梁的必要性及某高架桥工程的概况，对现浇预应力连续箱梁在桥梁工程中的应用进行了论述分析。
鸿晟 徐
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Gaoya dianqi, 2015 直流滤波电容器是直流输变电中的重要设备,以往对其抗震分析未考虑预应力的影响。文中探讨了预应力对直流滤波电容器模态的影响,通过计算说明预应力的存在提高了直流滤波电容器的固有频率,并对直流滤波电容器进行了3种载荷组合分析,得到了放置框架和棒形悬式复合绝缘子应力储备系数。
刘朝丰, 金松安, 李龙, 苏开云
doaj
World Water Policy, Volume 12, Issue 4, November 2026.ABSTRACT This paper describes and analyzes recharge practices in Bács‐Kiskun County, Hungary, within what can be categorized as the farmer domain. Such locally embedded aquifer recharge practices remain underexplored in Hungary. Current research and funding largely focus on large‐scale Managed Aquifer Recharge (MAR) interventions emphasizing intended ...
Helen Sundberg, Michael Gilek
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2018 提出一种基于损伤可控的梁柱节点(Web-Connected and Prestressed节点,简称WCP节点)。通过在梁端腹板设置连接钢板、摩擦耗能螺栓以及预应力筋,将梁柱连接在一起。为了研究该类节点的滞回性能、自复位能力和损伤特征,设计、制作并完成了4个足尺节点试件的低周往复试验,分别考虑了预应力筋的初始张拉力、高强度螺栓的预紧力以及拼接板的表面处理方式对节点性能的影响。试验结果表明:该类节点的破坏主要集中在拼接部分;节点通过螺栓的滑移变形提供了较好的耗能能力;预应力筋能够增强节点的刚度 ...
蔡鑫 +6 more
doaj
Functional Ecology, Volume 40, Issue 11, Page 3354-3366, November 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Oxygen supply capacity (α) is a physiological trait hypothesized to shape the metabolic niche and biogeography of aquatic breathers, yet how natural selection targets α remains unclear.
Na Zhang +6 more
wiley +1 more source
, 2009 为了研究预应力对钢筋混凝土柱稳定性能的影响,本文提出了一种计算施加预应力后钢筋混凝土柱临界荷载的计算方法,该方法结合了分析预应力作用的等效荷载法以及计算位移的图乘法。根据推导可以得出钢筋混凝土柱的临界荷载与施加预应力大小成正比关系 ...
黄应江
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