Results 31 to 40 of about 143,549 (134)
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Interface polarization enhancement and impedance matching optimization are the keys to improving the comprehensive performance of microwave absorbing materials (MAMs). Herein, a green synthesis strategy integrating sacrificial template self‐etching, hydrothermal reaction, and annealing treatment is proposed to successfully fabricate urchin ...
Zhenzhen Tian +8 more
wiley +1 more source
Functional Ecology, Volume 40, Issue 5, Page 1415-1427, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Wildfires are disrupting and regenerating forces in nature that affect all ecosystem components. However, the impact of wildfires on soil multitrophic biodiversity and the resulting consequences for ecosystem multifunctionality (EMF) remain poorly understood.
Juan Zhou +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.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
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT NiFe‐based MIL‐55 metal‐organic frameworks (MOFs) face challenges in achieving atomically precise composition and reliable methods for uniform growth. This study addresses these challenges by applying a slow evaporation crystallization technique to crude colloidal MIL‐55 products from hydrothermal synthesis, resulting in highly uniform ...
H. R. Haris +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.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
, 1996 本文根据国内外森林试验火场和实际火场的观测资料及已有的研究成果，进一步分析讨论了不同强度的森林火的划分及其垂直空间尺度，以及森林火蔓延的方式、方向和速度与森林火强度及自然风场的关系。首先，讨论了不同强度的森林火在自然风场作用影响下的蔓延方式，方向和速度；其次，讨论了不同强度的森林火在自然风场作用影响下的连续蔓延和不连续蔓延（跳火蔓延和飞火蔓延 ...
刘宪德, 王贤祥
core +2 more sources
, 2021 [[abstract]]現在的家中通常屋齡都比較高，家裡的電線老舊或是延長線使用不當可能會發生電線走火進而造成火災，沒有人可能知道甚麼時候會發生火災，可能會在家中沒人時發生，或是在半夜大家都在熟睡中發生，如果在這個時候發生又沒有及時去發現的話就可能會造成嚴重的傷亡，為了防止意外的發生本專題所製作的火源偵測裝置可以在火源發生時發出警報進而達到通知的效果。 火源偵測系統搭配了煙霧傳感器，紅外線火源接收感測模組，蜂鳴器，溫度檢測器 ...
吳宜臻, 陳君翰
core
Jianzhu Gangjiegou Jinzhan, 2005 上海铁路南站是上海市重要的对外交通枢纽和市内换乘枢纽。由于站台和大厅采用超大空间的建筑布局,超出了国内现有建筑防火设计规范的规定。特别对于南站钢屋盖这样重要的钢结构,国内现有规范方法难以满足抗火安全性与经济性要求。本文基于性能化对南站钢结构屋盖的抗火安全性进行了评估。在评估分析中首先确定结构抗火性能目标,然后对钢屋盖结构在可能最不利火灾下的性能进行分析,最后根据结构的受火性能是否满足抗火性能目标来评估结构的抗火安全性及需要采取的防火保护措施。本文结果被业主和消防主管部门采纳 ...
李国强, 郭士雄, 蒋首超, 杜咏
doaj
Jianzhu Gangjiegou Jinzhan, 2022 尽管建筑领域的火灾安全性能化设计理念已经提出近四十年，不少学者针对这一研究热点也做了大量工作，但是由于缺乏完善的理论基础，以及在实际工程设计中的可操作性等问题，其应用仍然受到很大的限制。目前，中国、英国、美国、澳大利亚、新西兰、加拿大等国家以及多个国际组织的建筑结构火灾安全设计规范开始由“处方式”向“性能化”发展，为研究工作提供了新的思路和要求。基于世界上主要的国际和国家标准，整理了有关火灾安全性能化设计方法的规范条例及内容，提出了建筑结构性能化抗火设计中的几个关键问题。为解决这几个关键问题 ...
华莹, 赵金城
doaj