Results 11 to 20 of about 25,302 (204)
This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara +3 more
wiley +1 more source
Garnet and LISICON-type Solid Electrolytes: Synthesis, Performance and Ionic Diffusion Dynamics [PDF]
相对于有机液体电解液,无机固体电解质在化学与电化学稳定性方面具有无可比拟的优势,能极大提升锂离子电池安全性能及其循环稳定性,近年来成为可充锂(离子)电池研究者所关注的热点。其中,对Li4SiO4-Li3PO4(LISICON)体系的研究已经有近30年的历史,由于其较低的原料成本、较为容易的合成条件及良好的稳定性,研究者对该体系依然保持着很高的研究兴趣。Garnet型固体电解质是新兴锂离子导体,由于其具有高Li+电导率和良好的稳定性,一问世便引起工作者极大的研究兴趣 ...
王大为
core
通过回流法和固相法合成了隐钾锰矿型氧化锰八面体分子筛OMS-2催化剂,采用XRD、FE-SEM、O2-TPD-MS和H2-TPR等表征技术考察了分子筛催化剂的形态和表面氧的热脱附性能及还原性能,并将其应用于甲苯和甲醛的催化燃烧反应.实验结果表明,合成方法对制备的催化剂的表面性质和催化燃烧性能具有显著影响.回流法制备的催化剂对于甲苯的燃烧具有较高的活性,而固相法合成的催化剂在甲醛的燃烧中具有更好的催化活性.催化燃烧性能取决于催化剂的表面形态和氧物种的种类 ...
LINGFei(凌飞) +4 more
doaj +1 more source
Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee +5 more
wiley +1 more source
提升风电消纳水平的电力系统灵活性措施经济性评估方法研究 [PDF]
近年来,中国风电并网容量不断增大,出现了严重的弃风现象,随着各类技术可行的灵活性措施提出,亟需研究经济合理的措施组合以降低弃风量。为此,提出一种提升风电消纳能力的电力系统灵活性措施的经济性评估方法。首先,构建基于成本效益的经济性评价指标,即减少风电弃风量的单位成本,以量化各类灵活性措施对提高电网风电消纳能力的效果;然后,采用时序生产模拟模型量化分析系统的年度弃风总量,生产模拟模型考虑常规电源、风电及负荷,以小时为仿真粒度进行机组组合和经济调度;最后,构建了灵活性措施的年化成本模型 ...
张富强, 元博, 张晋芳, 张涛
doaj +1 more source
Urbanization may alter bird foraging. Austral Parakeets (Enicognathus ferrugineus) in Patagonia rely on introduced plants in urban areas, especially in winter, despite preferring natives in the wild. This seasonal reliance on introduced species highlights urbanization trade‐offs and underscores the need to manage green areas with native plants to ...
Rocío Bahía +2 more
wiley +1 more source
We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry +5 more
wiley +1 more source
基于史密森学会火山目录分析了全球火山活动的时空特征,并结合中国地震台网目录讨论了火山活动对全球和中国大陆强震活动趋势的指示意义。结果显示:① 全球火山活动表现出较为显著的百年周期特征,且百年周期内火山活动和M≥8.0大震之间存在着频次准同步和能量互补现象;② 中国大陆1955年前后强震活动状态的变化可能与同期全球火山活动状态变化密切相关,且二者可能受控于百年周期内地球内部能量积累与释放的状态变化;③ 2022年汤加火山的剧烈喷发意味着地球内部能量仍在持续释放 ...
Fuqiang Shi +7 more
doaj +1 more source
Micro/Nanoelectrodes technique and Its Applications in Surface diffusion [PDF]
“无表面扩散,则无异相催化。”——盖博·索马杰。表面扩散作为固体表面科学中的基础研究之一,在能源材料、化学工业和环境保护等许多重要领域中扮演着十分重要的角色。 虽然目前已广泛建立了多达几十种能够在超高真空或者气相环境中系统研究表面扩散的实验方法。然而在电化学体系中,对于电极表面吸附物种表面扩散行为的研究无论在实验上还是理论上都是极具挑战的。微纳电极技术为电化学领域的研究带来了更高的空间及时间分辨率,从而许多在常规尺寸电极上无法直接观测的现象却在微纳电极上显得尤为突出,例如吸附物种的表面扩散 ...
王玮
core
This study investigates distribution patterns of Galliforms in the Indian Himalayas, focusing on factors influencing their occurrence, regions of high diversity and endemism, and their overlap with protected areas. Our study highlights the need for assemblage‐level conservation strategies in high Himalaya which primarily relies on snow leopard‐focused ...
Manvi Sharma +5 more
wiley +1 more source

