Results 11 to 20 of about 4,495 (144)
Conservation Biology, Volume 36, Issue 6, December 2022., 2022 Abstract Africa's protected areas (PAs) are the last stronghold of the continent's unique biodiversity, but they appear increasingly threatened by climate change, substantial human population growth, and land‐use change. Conservation planning is challenged by uncertainty about how strongly and where these drivers will interact over the next few decades.
Carola Martens +3 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian +10 more
wiley +1 more source
Success of restoration strategies in preventing extirpation of 2 critically endangered coral species
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected.
Erinn M. Muller +29 more
wiley +1 more source
General Calculation Method and Module for Fixed Bed Reactor Model [PDF]
, 2016 固定床反应器在化工过程中应用广泛，相关模型模拟工作多见于书本及文献，但其模型求解及模拟过程往往难以形成通用的计算模块。这是由于面对不同的反应体系，其动力学方程的数学表达形式不同，与动力学方程函数相关的自变量也各异，加之反应所牵涉的部分参数随反应进程的变化，对不同的反应体系必须根据其动力学方程形式单独求解和编程，使得编程工作量巨大。针对上述问题，本论文提出一种基于通用模块编程的固定床反应器模型通用解法。 本论文的工作集中于通用解法方式及计算模块编程的实现 ...
吴斯侃
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Single‐atom catalysis hinges on fundamental challenges in precisely controlling metal‐support interactions and rationally regulating metal–adsorbate relationships. Herein, we report a universal strategy for constructing highly efficient and well‐defined Cu(I) single‐atom catalysts based on a trifurcate AlL3 molecular support.
Donghui Zhang +9 more
wiley +1 more source
Gaoya dianqi, 2018 变压器热点温度是直接影响变压器绝缘老化速度及决定变压器运行状态的重要因素之一。文中综述了近年来国内外变压器热点温度研究方法的发展历史及现状。文中主要对基于测温系统的热点温度监测,基于经验公式、热路模型或数值计算方法的热点温度计算及基于人工智能学习算法的热点温度预测三大类方法进行了归纳总结,对比了各类方法优缺点,并论述了三类方法今后的研究、发展方向。
廖才波 +6 more
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Gaoya dianqi, 2022 在直流输电系统中晶闸管换流阀存在发生火灾的风险。文中联合热失重分析—差式扫描量热仪（TGA/DSC）以及热空气炉的实验方法，研究了换流阀主要元件的有机高分子材料在空气环境下的热失重起始温度、放热临界温度以及燃点。提出了通过TGA/DSC联用实验测定换流阀高分子材料在空气环境下的燃点的方法。通过对实验确定的3项参数之间的关联性分析，确定了影响换流阀元件高分子材料的引燃温度的影响因素。研究结果表明：换流阀的引燃过程受到了高分子材料的热解过程和在高温下的放热过程的共同作用 ...
朱正一 +6 more
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