Results 11 to 20 of about 21,909 (169)
Wildlife Letters, EarlyView.Using radiotelemetry, we found that the movement and home range of the endangered Sacalia bealei varied significantly across reproductive classes and seasons, with males exhibiting greater movement than females during wet and mating seasons. The species exhibits strong aquatic dependence, favoring deep pools interspaced among riffle‐pool sequences ...
Wing Sing Chan +3 more
wiley +1 more source
Insights for conservation from the Ecological Knowledge Games project
Conservation Biology, EarlyView.Abstract Environmental conservation research requires robust methods for collecting large‐scale behavioral data and engaging diverse stakeholders in decision‐making processes. We (Y.P., A.B.D., and N.B.) created EcoKnowGames (Ecological Knowledge Games), a transdisciplinary project that develops knowledge games for conservation science and data ...
Yuan Pan +4 more
wiley +1 more source
Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley +1 more source
The influence of the electrical boundary condition on domain structures and electrocaloric effect of PbTiO3 nanostructures [PDF]
, 2016 本文在基于金兹堡—朗道—德文希尔唯象理论的相场法理论下，应用有限差分方法及四阶龙格—库塔法数值求解，研究不同电学边界条件对铁电纳米点畴结构演化和热电温度效应的影响。本文所用的中间电学边界条件，可以用来表示表面电极与纳米点之间的黏合情况及电极对表面电荷的补偿情况，进而说明退极化电场和退极化电能对系统自由能的影响，不同以往的对退极化能进行权重处理，具有实际的物理意义。 当电学参数λ0为0时，中间电学边界可以退化为开路电学边界条件；当λ0趋向无穷大时，对应于短路电学边界条件，即表面电荷可充分补偿。λ0的值越大，
陈志英
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Gaoya dianqi, 2023 随着能源转型的深入，风光等可再生能源大规模替代传统能源发电并网，电力系统结构发生很大的变化，导致电网惯性变低、稳定性变弱。另外，风力发电功率的波动性将导致电力系统调度困难。因此，在风电并网系统中增加构网型储能系统，并给出构网型储能系统的控制策略，进而围绕风电并网的稳定性以及电压跌落故障，对构网型储能系统增加前后风电并网波形进行对比分析，验证了构网型储能系统可以大大提高风电并网的稳定性，并且对电压跌落故障有很好的抑制作用。
杨本星, 王伟, 杨明轩, 柳涛
doaj
Synthesis and Electrochemical Performance of Biochar/Sulfur Composites as Cathode Materials for Lithium-Sulfur Battery [PDF]
, 2015 单质硫具有资源丰富、无毒、廉价等优势，能提供高达1675mAh/g的理论容量，以硫和金属锂构建的锂硫电池能量密度为2600Wh/kg。但由于硫及其放电产物导电性差，中间产物多硫化锂的溶解及体积膨胀等问题，导致电极的活性材料利用率低和循环性差，限制了其应用。通过碳材料的引入可以获得导电复合材料，抑制多硫化物的穿梭，从而实现硫正极材料的高效利用；从生物质衍生而来的生物碳更具有简单易得，价格低廉，便于规模化，环保，资源可再生等优点，因此本文为以生物碳材料为主线 ...
吴娇红
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Political Cycles, Electricity Policy, and Mexico's Economy
Latin American Policy, Volume 17, Issue 2, June 2026.ABSTRACT Electricity reform in Mexico should stimulate economic growth, improve energy efficiency, and reduce greenhouse gas emissions. This article evaluates the successes and failures of reform and draws lessons across political cycles by analyzing changes in political dynamics—often tied to policy reversals—and the legal framework during the pro ...
David Bonilla
wiley +1 more source
Study on Measurement for Dielectric Property of Microwave Dielectric Resonator [PDF]
, 2016 微波介质陶瓷材料是近几十年发展起来的一种新型的功能电子陶瓷，主要用于微波频段电路中完成一种或多种功能的陶瓷材料，是制造微波介质谐振器和滤波器的关键材料，它具有高介电常数，低介电损耗，温度系数小等优良性能适用于制造多种微波元器件，能满足微波电路小型化，集成化，高可靠性，低成本的要求。在电子对抗，导航，通信，雷达，家用卫星直播电视接收器和移动电话中得到了广泛应用。 微波介质陶瓷材料是电介质材料的一种，具有电介质材料的基本性质。其介电性能可用介电常数ε_r^'，品质因数Q（或损耗角正切 ...
李学漪
core
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT f–f electronic transitions of rare‐earth elements typically exhibit unique physicochemical properties that benefit the photocatalytic performance of the catalysts containing the elements. Although conventional rare‐earth metal oxides or single‐atom doping in semiconductors have been extensively studied, the construction of heterojunction ...
Yang‐Sen Xu +6 more
wiley +1 more source
Electronic structures and thermoelectric properties of several wide-band-gap semiconductors [PDF]
, 2016 由于化石能源的飞速消耗以及人类在应用化石能源过程中造成的环境污染，开发清洁可持续的新能源成为研究热点，热电作为新能源开发中的一员，在研究中遇到的主要问题是材料的热电转换效率难以提高。本文的主要工作是以第一性原理为基础，以SiC，GaN，ZnO等几种宽禁带半导体为对象，研究宽禁带半导体材料结构变化与其热电效率高低的关系。通过Quantumespresso和WIEN2k计算材料的电子结构，再用Boltztrap软件计算材料的热电性质，我们可以比较不同结构的同种化合物热电性质的变化情况，并找出定性的规律 ...
黄政
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