Results 21 to 30 of about 1,228,124 (150)
Functional Ecology, Volume 40, Issue 7, Page 2068-2082, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Grasslands worldwide are experiencing severe degradation due to overgrazing, climate change and anthropogenic disturbances, resulting in substantial declines in biodiversity and ecosystem functioning.
Xiaoqi Wang +5 more
wiley +1 more source
, 2015 一种用于空间环境模拟真空设备的复合装置，包括铝筒，所述铝筒设置在真空室内；冷媒管，所述冷媒管分布在铝筒的外壁表面，所述冷媒管连接波纹管，所述波纹管与设置在真空室外的制冷器相连接；绝缘加热带，所述绝缘加热带与绝缘加热带电源连接，所述绝缘加热带分布在铝筒外壁面；温度开关，所述温度开关设置在铝筒的外壁面上；热电偶，所述热电偶置于铝筒外壁面之上，所述热电偶连接温控表。本发明的有益效果：本发明集成高低温热沉、全截面法拉第、高温红外烘烤三种功能于一个装置中，其结构简单、节省空间、经济实用 ...
高辉, 康琦, 段俐, 胡良
core +2 more sources
Atom Probe Tomography‐Based Analysis of Residual Trace Elements in Advanced Metallic Materials
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Residual trace elements inherited from raw materials strongly influence the mechanical and environmental performance of advanced metallic alloys and recycling materials due to preferable boundary/interface segregation and resultant embrittlement effects, yet their parts per million level concentrations pose significant challenges to ...
Congcong Li +17 more
wiley +1 more source
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Arsenic presents a critical duality as both a hazardous environmental pollutant and an indispensable material for advanced semiconductor technologies. This study proposes an integrated reductive vacuum sublimation strategy, assisted by carbon and lead additives, to purify crude arsenic containing high oxygen (7.4%) and antimony (1326 mg kg−1).
Hongrui Xiang +6 more
wiley +1 more source
In Situ Formation of the Li3Bi Alloy Phase Interface for Robust Garnet Solid‐State Lithium Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Garnet‐type electrolyte Li6.4La3Zr1.4Ta0.6O12 (LLZTO) is a promising component for commercializing solid‐state batteries owing to its wide electrochemical window, good stability, and high shear modulus. However, poor interface wettability and lithium dendrite growth limit the practical application of the LLZTO electrolyte.
Pengfei You +8 more
wiley +1 more source
Gaoya dianqi, 2023 采用有限元法对12 kV真空灭弧室的电场特性进行了单因素分析，结合SPSS软件对其进行了正交回归分析，选取触头圆倒角、触头开距、主屏蔽罩半径、主屏蔽罩卷边半径、主屏蔽罩卷边角度和主屏蔽罩坡度这6个主要参数进行综合优化研究。得到了电场特性和设计参数之间的回归方程，找出了影响电场特性的显著因素。研究结果表明：触头圆倒角和触头开距对真空灭弧室典型点的电场强度有高度显著影响，主屏蔽罩半径对真空灭弧室典型点的电场强度有显著影响；触头圆倒角和触头开距对真空灭弧室触头处最大电场强度有显著影响 ...
王文成 +4 more
doaj
, 2015 短周期任务的航天器,在任务结束后要放掉工质,以减轻重量,提高安全性和可靠性。基于两相混合流动及液体闪蒸、闪蒸波理论,结合压力突降过程液态全氟三乙胺闪蒸试验,对1/6 g重力、高真空环境排放流体回路管道内液态全氟三乙胺工质的过程进行分析。结果表明,全氟三乙胺工质向真空排放时会发生闪蒸,回路系统内液体工质的排放时间主要取决于压力排放段、重力辅助排放段和闪蒸波传播段;其中,仅重力辅助排放段依赖于重力,闪蒸波传播段时间最长;试验观测闪蒸波在内径9 mm塑料管内的传播速度为0.23 m/s,比Sim■es ...
赵建福, 徐侃, 郑红阳, 宁献文
core +2 more sources
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT In conventional piezoceramics, the coordinated change between the dielectric constant (εr) and the piezoelectric charge constant (d33) usually limits the piezoelectric voltage constant g33 (g33 = d33/εr), a critical figure of merit for piezoelectric sensors.
Xiaoying Feng +7 more
wiley +1 more source