Results 31 to 40 of about 7,377 (130)
Policy Studies Journal, EarlyView.ABSTRACT We use grid‐group cultural theory (CT) to specify underspecified aspects of the Advocacy Coalition Framework (ACF). Our theoretical synthesis of CT and the ACF provides, first, an exhaustive typology of policy actors and their cultural cognitive biases that entail, guide, and constrain policy core beliefs about problem definitions and ...
Metodi Sotirov, Brendon Swedlow
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Functional Ecology, Volume 40, Issue 2, Page 534-552, February 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Non‐structural carbohydrates (NSC) are critical mediators of plant adaptation to fluctuating light environments. They are tightly coordinated with plant economic strategy, that is, leaf economics spectrum (LES) and root economics spectrum (RES).
Lulu Xie +6 more
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Effects of landscape fragmentation on floodplain fishes as revealed by species–habitat networks
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract How species interact with habitat patches is influenced primarily by habitat configuration (e.g., connectivity) and species’ functional traits. As levels of fragmentation increase, identifying the intricate connections between these components is crucial for biodiversity conservation.
Chen Zhang +8 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Transition metal carbides demonstrate exceptional mechanical properties but confront a critical hardness–toughness trade‐off. Spinodal decomposition‐mediated phase separation is an effective approach to enhance mechanical properties in carbide ceramics through high‐temperature treatment.
Zhi‐Xuan Zhang +6 more
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Study on aseismic and shock absorption of folded plate latticed shell(折板式网壳结构的抗震及减震研究)
Zhejiang Daxue xuebao. Lixue ban, 2002 采用振型分解反应谱法对折板式网壳结构的动内力作了分析,计算了结构厚度、坡度等参数对动内力的影响,另外对用振型分解反应谱法和时程分析法计算的结构动内力作了比较.最后,探讨了采用粘弹性支座对四肢腿折板式网壳结构的减震效果.
GAOBo-qing(高博青) +1 more
doaj +1 more source
Carbon Material Films for Flexible and Efficient Electromagnetic Interference Shielding: A Review
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT With the rapid development of technology such as the Internet and electronic devices, electromagnetic radiation pollution has become an increasingly prominent issue, which negatively impacts both human health and the normal operation of equipment.
Yu‐Xin Chen +10 more
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Jianzhu Gangjiegou Jinzhan, 2011 在正放四角锥网架结构抗火性能研究的基础上,进一步分析了两向正交正放网架、斜放四角锥网架和正放抽空四角锥网架在大空间建筑火灾中的热力耦合反应。基于有限元程序ANSYS建立了网架结构上弦压杆应力比一致的结构分析模型,按温度增量加载的方法,对不同支座布置、温度场及荷载条件下的网架结构全过程反应进行了分析。结果表明,温度场非均匀性是导致网架结构杆件相互约束的主要因素,随着温度场非均匀性系数η的减小,各型网架结构的临界温度呈下降的趋势;在相同的温度场和支座布置条件下,随着荷载比的减小各型网架结构临界温度呈升高趋势;
蒋舒, 杜咏, 胡夏闽
doaj
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT High‐entropy alloys (HEAs) have emerged as a transformative class of materials distinguished by their complex chemical compositions, unique microstructures, and remarkable mechanical and functional properties. Traditionally, the discovery and optimization of HEAs have relied on conventional methods, including trial‐and‐error experimentation ...
Chrispin Ouko Zamzu +2 more
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Jianzhu Gangjiegou Jinzhan, 2010 针对5种典型单层球面网壳结构型式（联方型、施威德勒型、凯威特型、三向格子型和短程线型）,本文采用基于离散变量的序列两级截面优化算法对一百个不同跨度（30m60m）、不同矢高（1/31/7）的网壳进行截面优化设计,在截面优化设计结果中提取选型所需的优秀样本,一个优秀样本由3部分组成:跨度,矢跨比和该跨度、矢跨比下用钢量最少的网壳结构类型;然后利用BP人工神经网络对复杂非线性映射关系的模拟能力建立网壳跨度、矢跨比与用钢量最少的网壳型式之间的映射关系,避免了结构选型优化的多维、多重非线性模型的求解困难 ...
陈世英, 郭玉霞, 鹿晓阳
doaj
Functional Ecology, Volume 40, Issue 1, Page 163-175, January 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Grazing by large herbivores is a critical factor shaping grassland biodiversity and ecosystem functioning worldwide, yet its consequences for soil communities remain poorly understood.
Quanhui Ma +12 more
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