Results 31 to 40 of about 1,637,472 (150)

Seasonal Spatial Population Density Distribution Dynamics of Lynx and Ungulate Prey in Cold‐Temperate Coniferous Forests 寒温带针叶林猞猁和有蹄类猎物种群密度空间分布的季节性动态研究

open access: yesIntegrative Conservation, Volume 5, Issue 2, Page 225-235, June 2026.
This study used camera trap data from 6 years between 2016 and 2021 and generalized linear mixed models to explore the factors that influence the spatial density distribution of lynx and its prey populations in warm and cold seasons in Inner Mongolia Hanma National Nature Reserve, China.
Wentao Zhang   +11 more
wiley   +1 more source

A link between increased temperature and avian body condition in a logged tropical forest

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi   +7 more
wiley   +1 more source

Representation of obligate groundwater‐dwelling copepod diversity in European protected areas

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli   +7 more
wiley   +1 more source

252 kV三相共箱GIS母线壳体温度场分布特性研究

open access: yesGaoya dianqi, 2017
气体绝缘金属封闭开关(gas insulated switchgear,GIS)在电力系统中应用广泛,其内部触头过热会引发重大事故,因此研究其温度场分布特性具有重要意义。文中设计了252 kV GIS温升实验平台,通过实验获得了GIS母线导体、SF6气体和外壳部位的温度分布情况。针对上述实验平台建立了GIS三维物理模型和数学模型,基于有限元分析法对上述实验获得的GIS母线壳体温度场分布规律进行了仿真佐证。研究结果表明,在GIS壳体内部靠上区域,SF6气体温差较小,梯度不明显,而在GIS壳体内部下方区域 ...
金虎   +5 more
doaj  

Superior Abrasibility of YSZ(ESP)/BN@ZrO2‐Polyester Composite Sealing Coating Reinforcing With Hybrid Micron/Nanometer Multiscaled Pore Structure

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu   +8 more
wiley   +1 more source

Interfacial Engineering of Sodiophilic Metal Layers on Liquid Alloys for Dendrite‐Free Sodium Metal Anodes

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Sodium metal batteries hold significant promise for large‐scale energy storage due to the high theoretical capacity and abundant sodium sources, yet sodium‐metal anodes are hindered by dendrite propagation, unstable solid electrolyte interphase, and poor cycling efficiency arising from uneven Na deposition and volume changes.
Nan Xing   +7 more
wiley   +1 more source

The Structural Origin of the Amorphous‐to‐Crystalline Transformation in Cu‐Zr Based Amorphous Alloy

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Amorphous alloys (AAs) possess a metastable structure from a thermodynamic perspective and tend to crystallize under external conditions, which in turn alters their material properties. To gain an in‐depth understanding of their crystallization mechanism, this study employed in situ spherical aberration‐corrected transmission electron ...
Yajie Huang   +4 more
wiley   +1 more source

Elastic Framework Driven Mg2+ Autocapture and Autocatalysis: Mechanistic Origin of Fast Hydrogen Release in 2LiBH4–MgH2

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The protracted incubation time has long been the Achilles' heel of the promising 2LiBH4–MgH2 hydrogen storage system. Instead of the usual route‐creating heterogeneous nucleation sites to hasten MgB2 formation, we shortened both de‐ and re‐hydrogenation incubation periods by steering the Mg transformation itself.
Kai Jia   +6 more
wiley   +1 more source

A study on the interaction between ground-air temperature differences over the Qinghai-Tibet Plateau and sea surface-air temperature differences over the Indian Ocean(青藏高原地气温差与印度洋海气温差的相互影响)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2018
青藏高原和印度洋均对我国气候有重要影响,研究高原和印度洋的热力状况及其耦合关系对全面了解我国的天气现象具有重要意义.利用1981 — 2010年(30 a)欧洲中心ERA-interim的青藏高原和印度洋温度资料,以及NCEP/NCAR的垂直速度和风速资料,分析了青藏高原地气温差和印度洋海气温差的特征及其相互影响.结果表明,高原冬、夏季地气温差有所区别:冬季地气温差呈东北-西南向的带状分布,在高原中部、西南边界喜马拉雅山脉地区和东南边界出现了较大的负值中心,其他地区均为正值;夏季地气温差均为正值 ...
SHENZiwei(申紫薇)   +2 more
doaj   +1 more source

变粘度柱状地幔上涌流对称轴上的温度、速度和粘度分布

open access: yes, 1983
本文对地幔粘度随温度和压力变化的牛顿流体,求得了控制上涌流动的流体力学方程组在对称轴处的渐近解。从而得到了对称轴上温度、上涌速度和粘度随深度的变化。计算结果对二组有代表性的地幔流变参数给出。结果表明,对称轴上的温度分布几乎与流变参数无关 ...
李荫亭, R.O.Meissner, 薛恩
core   +1 more source

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