Results 11 to 20 of about 1,376 (127)
A multidisciplinary approach to estimating wolf population size for long‐term conservation
Conservation Biology, Volume 37, Issue 6, December 2023., 2023 Abstract The wolf (Canis lupus) is among the most controversial of wildlife species. Abundance estimates are required to inform public debate and policy decisions, but obtaining them at biologically relevant scales is challenging. We developed a system for comprehensive population estimation across the Italian alpine region (100,000 km2), involving ...
Francesca Marucco +30 more
wiley +1 more source
Conservation Biology, Volume 36, Issue 1, February 2022., 2022 Abstract Globally, ecosystem structure and function have been degraded by the cumulative effects (CE) of multiple stressors. To maintain ecosystem resilience, there is an urgent need to better account for CE in management decision‐making at various scales.
Jordan A. Hollarsmith +2 more
wiley +1 more source
Digital data sources and methods for conservation culturomics
Conservation Biology, Volume 35, Issue 2, Page 398-411, April 2021., 2021 Abstract Ongoing loss of biological diversity is primarily the result of unsustainable human behavior. Thus, the long‐term success of biodiversity conservation depends on a thorough understanding of human–nature interactions. Such interactions are ubiquitous but vary greatly in time and space and are difficult to monitor efficiently at large spatial ...
Ricardo A. Correia +12 more
wiley +1 more source
Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
建筑工程与管理, 2019 进入新世纪以来，我国工业迅猛发展，钢材产量增加，以钢材作为建筑材料，充分发挥钢材自重轻、具有良好的抗震性能、施工周期短、结构跨度大空间布置灵活等诸多优点被广泛应用于建筑施工中。但同样存在着钢结构易腐蚀、耐热但耐火性差、易产生扭曲等缺点。长期以来人们对钢材的防火认识存在误区，认为钢材结构不怕火烧，经久耐用，不需进行防火防护。其实，钢材在高温环境下，结构承载能力下降非常快，钢材作为建筑材料使用，在建筑防火方面是存缺陷的,不满足规范耐火极限要求。如果发生火灾，在火灾中钢材表面温度迅速升高 ...
冲 陈
semanticscholar +1 more source
Jianzhu Gangjiegou Jinzhan, 2022 准确模拟建筑物地震倒塌可为分析建筑废墟存活空间分布规律和构建救援生命通道提供重要的前期基础。以钢框架结构为研究对象，重点讨论钢框架、填充墙、填充墙与钢框架之间连接问题。采用有限单元法（FEM）和有限-离散单元法（F-DEM）相结合的方法模拟了2跨×3跨的3层钢框架填充墙结构，以倒塌模式为评价指标来验证数值模拟方法的准确性。结果表明：数值模型整体结构表现为倾斜式倒塌模式，朝大跨度方向倒塌并伴随扭转，与实际震害中外廊式结构的倒塌模式相一致；向着结构大跨度方向的存活空间逐渐减小 ...
裴学良 +4 more
doaj
, 2012 建筑结构在外部激励下的振动控制一直以来是振动控制领域研究的热点。其中,半主动控制策略包含了被动控制和主动控制的优点,能更有效地提高建筑结构的抗震性能,减轻其在动力作用下的反应及损伤。基于磁流变阻尼器的半主动控制策略也有很大的发展,在实际工程中已有所应用。磁流变阻尼器的主要性能取决于磁流变液成分。综述国内外磁流变阻尼器的研究发展历程,及其在建筑结构减震控制中的应用 ...
刘中华, 文善任
core
Policy &Internet, Volume 17, Issue 2, June 2025.Abstract The spread of false and misleading information in digital communication spaces has enormous potential for harm in democratic societies, but has so far been insufficiently addressed by policy makers. This problem has been exacerbated by recent technological developments such as deepfakes.
Olivia Hägle +3 more
wiley +1 more source
The Research on Wind-induced Vibration Control of Large Span Roof Structures with Different Damping Systems and Optimization of MTMD Damping System [PDF]
, 2016 近年来，随着国内经济实力的增强和社会发展的需要，大跨空间结构在我国得到迅速发展，且跨度越来越大。由于大跨空间结构具有质量轻、阻尼小、柔性大、自振频率低等特点，因而对风荷载的作用很敏感。在风荷载的作用下，结构会产生较大的变形，严重降低结构的安全性和舒适性。为抑制结构的动力响应，学者们提出在结构适当位置处安装控制装置的概念。目前，高层建筑在风荷载作用下的振动控制研究已取得丰硕成果，并有大量的工程应用实例。然而，国内外学者对大跨空间结构的风振控制研究相对较少，因此有必要开展大跨空间结构的风振控制研究 ...
邵辉
core
Conservation Biology, Volume 39, Issue 2, April 2025.Abstract Emerging infectious diseases are increasingly recognized as a significant threat to global biodiversity conservation. Elucidating the relationship between pathogens and the host microbiome could lead to novel approaches for mitigating disease impacts.
Alexander S. Romer +25 more
wiley +1 more source