Results 21 to 30 of about 160,313 (149)
ABSTRACT This article explains why the European Union Wildfire Risk Management instruments have evolved since the 1980s, even though the underlying patterns of wildfire events have remained largely unchanged. It argues that these changes stem from competing institutional actors promoting distinct policy frames within the European Union's (EU ...
Damien Ballereau, Sabine Saurugger
wiley +1 more source
为研究换流站内±800 kV防火墙及上部互连电气设备体系的地震响应特点,分别建立了500 kV复合避雷器和500 kV复合支柱绝缘子单体设备、互连设备及防火墙-互连设备体系有限元模型,随后开展了不同地震输入下的地震响应分析,最后分析了管母线对单体设备地震响应的影响和防火墙对上部设备的动力放大作用。结果表明,通过可滑动金具和管母连接下的互连设备的加速度、位移和应力响应较单体设备均有不同程度的降低,在0.4 g地震输入下复合套管的安全系数远大于1.67,抗震性能优越 ...
邸悦伦, 曹枚根, 张若愚
doaj
ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian +7 more
wiley +1 more source
ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du +9 more
wiley +1 more source
ABSTRACT Silica nanosheets (SiO2 NSs) hold great promise for advanced thermal protection applications because of their exceptional thermal and chemical stability. However, their development has been hindered by challenges in scalable synthesis and structural integration for specialized applications.
Qun‐Yao Yuan +3 more
wiley +1 more source
ABSTRACT This article examines the fire and rescue services sector in Sweden in the period 1986–2021, and explains the timing of bureaucratic reforms using the Multiple Streams Framework (MSF). In this study, we insert institutions in MSF by employing a two‐level analysis; we highlight the interactions among experts acting as policy entrepreneurs over ...
Kerstin Eriksson +3 more
wiley +1 more source
How Many Floods Have Occurred in China in the Past Decade? A Perspective From Social Media
Abstract Global climate change has led to frequent and widespread flood disasters in China. Traditional flood disaster investigations mainly focus on major flood events, and small‐scale flood events are often overlooked. This study utilized the Sina Weibo social media platform to detect flood events in 370 cities in China from 2012 to 2023.
D. Shen +5 more
wiley +1 more source
鉴于隧道火灾特点及其危害性,隧道防火的重要性与日俱增。涂装隧道防火涂料是隧道防火的有效方法,文中简述了隧道防火涂料的防火机理,研制原则及制备流程。福建省防火阻燃材料重点实验室开展隧道防火涂料的研制,项目产品DP-3型混凝土隧道防火涂料完成在厦门大平公司的中试,并投入市场,产生良好的社会、经济效益,实现了隧道防火涂料成果产业化推广。该涂料已应用于数十项隧道工程的防火涂装,均一次性通过项目验收 ...
戴李宗 +4 more
core
Biosphere reserves aim to protect global biodiversity alongside social and economic development. In the Cape Floristic Region, biosphere reserves are an effective conservation approach to protect arthropods against habitat transformation in this biodiverse region.
Michael J. Samways +3 more
wiley +1 more source
根据钢结构防火保护材料的相关技术要求,通过对常见的钢结构围护材料进行评价,筛选了包括水泥基材料中的无机轻集料砂浆、胶粉聚苯颗粒、蒸压轻质加气混凝土(autoclaved lightweight concrete,ALC),保温浆料中的石膏基保温浆料、微孔硅酸钙浆料,以及保温板材中的发泡陶瓷保温板和岩棉板在内的3类可以兼作防火保护的材料,分别对以上材料进行耐火性能测试,通过试验现象及试验数据分析评价不同材料的耐火性能,并给出对应的建议构造措施。结果表明,当对这些材料采用合适的构造方式 ...
蒋首超, 吴弘宸
doaj

