Results 21 to 30 of about 418,009 (158)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan +10 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2023 在双碳目标的驱动下，碳排放权愈发成为重要的地区发展权，在县域层面落实落位碳额分配是我国深入减碳的焦点，浙江省将在“十四五”时期进入局部率先达峰的二级减碳阶段。为分解落实我国自主减碳目标，采用熵权法构建以公平性、效率性、可持续性为原则的碳排放权分配模型，基于碳排放空间与减碳潜力测算方法，得到2017—2030年浙江省89个县（市、区）的碳排放权分配、碳排放空间分类和减碳潜力分级。结果表明，碳排放权分配在县域层级存在空间差异性，在省域层级存在空间平衡性；碳排放空间分类呈“南余北赤”模式；减碳潜力分级表现为 ...
周从越(ZHOU Congyue) +3 more
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Functional Ecology, Volume 40, Issue 3, Page 636-654, March 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
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Genetic origins and climate‐induced erosion in economically important Asian walnuts
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract The global climate is undergoing unprecedented changes, posing significant threats to species persistence. However, the spatiotemporal impacts on genetic diversity remain poorly understood, hindering species conservation and management. Walnuts, generally referred to as Juglans regia and J. sigillata, are economically vital in Asia, but little
Peng‐Zhen Fan +17 more
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Shuitu Baochi Xuebao, 2006 以宁夏盐池县为研究对象，以4期卫星遥感影像为数据源，应用遥感、地理信息系统及景观生态学原理，在获取大量数据的基础上，采用定量的方法深入分析了研究区的景观格局状况。结果显示，在研究时段内盐池县土地景观空间格局发生了显著变化，整体景观的破碎度和多样性指数在不断上升，优势度指数不断降低，均匀度指数持续增加，景观格局朝着农、林，牧多优势度的趋势良性发展。盐池县生态环境状况正在逐步得到改善。
周铁军 +5 more
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New Directions for Child and Adolescent Development, Volume 2026, Issue 1, 2026.Background Working memory updating is crucial in bilingual children′s second language (L2) reading comprehension. A robust updating ability is a cognitive key for children to successfully master L2 reading comprehension. Objective This study is aimed at investigating the effect of updating ability on the L2 Chinese reading comprehension among Uyghur ...
Guangxin Li +3 more
wiley +1 more source
Finding floral and faunal species richness optima among active fire regimes
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Changing fire regimes have important implications for biodiversity and challenge traditional conservation approaches that rely on historical conditions as proxies for ecological integrity. This historical‐centric approach becomes increasingly tenuous under climate change, necessitating direct tests of environmental impacts on biodiversity.
Zachary L. Steel +8 more
wiley +1 more source
高质量发展导向下安徽省土地利用效益时空格局演变与耦合协调关系
Shuitu Baochi Xuebao目的探究土地利用效益的时空格局演变及其耦合协调关系，关乎到资源的均衡配置和土地利用方式的转变，对实现安徽省土地利用效益的高质量提升与加快新质生产力发展具有重要意义。方法选取2011—2020年安徽省16个地级市的面板数据，综合熵值法与TOPSIS模型完成各地级市土地利用效益测度，分析综合效益的空间分异特征和子系统效益的变化情况。并针对土地利用效益的时空格局和演变趋势，以及子系统效益的耦合协调发展水平采用空间自相关与耦合协调度模型开展实证分析。结果1）2011—2020年安徽省土地利用综合效益表现出“南高-
苏子豪, 邹伟, 范树平, 肖逸
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Conservation Biology, Volume 39, Issue 6, December 2025.Abstract As nations seek to expand protected area (PA) networks to cover 30% of land and seas by 2030 (30×30), there is an urgent need for systematic conservation planning and spatial prioritization that considers the broad range of ecological and socioeconomic factors influencing the persistence of biodiversity.
Edmond Sacre +2 more
wiley +1 more source
四川大学学报. 自然科学版, 1997 假设初始流形是仿射空间中的局部严格凸的紧致无边光滑超曲面，坐标原点在曲面凹的一侧，位置矢量与曲面横截，则中心仿射超曲面的发展方程ｘｔ＝－Ｋ１ｎ＋２ｘ的解在一个最大有限时间区间［０，Ｔ＊）内存在，并且保局部严格凸性及位置矢量与解曲面的横截性，在有限时间后解曲面收缩于一点．
廖华奎
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