Results 41 to 50 of about 11,061 (194)
Characteristics and Influencing Factors of Soil CH4 and N2O Fluxes in Typical Broad-leaved Forests in the Yangtze River Delta Region, China [PDF]
[Objective] The forest coverage rate in the Yangtze River Delta region reaches 33.4%, and the underlying surface soil may have an important impact on the regional greenhouse gas budget.
CHEN Bingjiang +7 more
core +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT This study introduces a novel velocity‐iterative directional annealing (IDA) strategy to overcome stagnation challenges in columnar grain growth of Ti‐48Al‐2Cr‐2Nb alloys. By dynamically adjusting hot zone migration rates across iterative cycles, the IDA protocol achieved 92.2% synchronization between anisotropic α‐grain boundary (GB ...
Zedong Liu +6 more
wiley +1 more source
Dianci bileiqi, 2015 定量估算了雷电感应电流在单、双股架空铝、铜金属线上的最大温升,分析了相关参数与最大温升之间的关系,并对最大温升能熔断多大截面的架空金属导线问题进行了计算分析。结果表明:雷电感应电流在单股架空铜和铝金属线路上产生最大温升随导线截面积q的减小而成指数增大;随架空线路高度hd的增大而增大,其变化率随雷电流幅值的增加而增大;随雷击电流幅值I的增大而增大,其变化率随雷击电流波下降沿半值时间的增加而增大。雷电感应电流在双股架空铜和铝金属线路上产生最大温升随两股导线之间距离的减小而成指数增大。雷击架空金属线路附近时 ...
黄克俭, 王小飞, 李鑫, 陈仁君
doaj
Physiological and Ecological Responses of Kandelia obovata and Sonneratia apetala Saplings under Global Warming and Sea-Level Rise Conditions [PDF]
, 2016 红树林是位于热带亚热带海岸潮间带的木本植物群落。其同时受到气候变暖和海平面上升的双重影响，是应对全球变化的敏感区域。我国乡土红树植物秋茄(Kandeliaobovata)是北半球最耐寒的红树植物；多分布于中高潮，具有较强的抗淹水能力。从孟加拉国引种的无瓣海桑(Sonneratiaapetala)具有较耐低温、高适应性和生长迅速等特点；并具有一定的淹水适应能力。 本研究运用人工增温-潮汐淹水装置，模拟未来100年平均气温升高2℃、海平面上升后潮汐淹水时间的变化(每个潮水周期淹水时间由2h延长至6h ...
胡娜胥
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The high operating temperatures and sluggish kinetics of Mg‐based hydrogen storage materials (HSMs) are urgently being addressed. In this work, a novel Mg–Ni–Ga HSM with dual‐phase synergistic catalysis is developed, including the fishbone‐like Mg3Ni2Ga1 catalytic phase and the Mg2Ni phase with stacking faults (SFs).
Shiyang Hu +7 more
wiley +1 more source
Dianci bileiqi, 2023 长时间运行的GIS设备内部SF6气体的绝缘性能受环境温度及内部气压的影响，为了分析环境温度、气压对SF6气体绝缘性能的影响规律，基于两项近似的Boltzmann方程，求解了不同气压和温度下SF6气体的电子输运参数，并分析其绝缘性能的变化规律。仿真计算结果表明：温度300 K、0.1 MPa～0.6 MPa气压条件下，随着气压的增大，SF6气体的约化电离系数增大，约化吸附系数略微增大，计算得到约化有效电离系数增大，因此临界击穿场强增大，绝缘性能越好；在气压0.1 MPa、温度250 K、300 K、340
尹凯强 +5 more
doaj
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The pre‐existing α‐Fe crystals have important effects on the precipitation and growth of nanocrystals and finally determine the comprehensive soft magnetic properties (SMPs) of the nanocrystalline alloys (NAs). In this work, a high content of Cu elements has been added to Nanomet‐type alloys to enhance the gradient heterogeneity in order to ...
Lei Xie +6 more
wiley +1 more source
Effects of Warming and Sea-level Rise on the Growth of Kandelia obovata and Laguncularia racemosa Seedlings [PDF]
, 2013 据政府间气候变化专门委员会（IPCC）估计，未来二十年全球平均气温将以每十年增加大约0.2ºC的速率变暖。未来100年全球平均气温大约上升2oC。全球变暖引起海洋自身的热膨胀与陆地上冰川、冰帽、极地冰盖的消融，导致海平面上升。根据中国国家海洋局公报，未来100年我国沿海海平面上升幅度约为30cm。红树林是分布在热带和亚热带海岸潮间带的木本植物群落，它将首当其冲受到全球气候变化的影响：既受到气温上升的影响，又同时受到海平面上升的影响。全球气温升高和海平面上升对红树林的影响是交互的。 秋茄 ...
邓燕瑜
core
Greenhouse Gas Mitigation and Yield Response to Biochar-Microbial Amendment in Saline-Alkali Soil [PDF]
[Objective] To investigate the effects of combined application of biochar and microbial fertilizer on greenhouse gas emissions and sunflower yield in saline-alkali soil under plastic film mulching and drip irrigation.
JI Wentao +6 more
core +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Zirconium dioxide (ZrO2) thin films are critical materials owing to their thermal stability, mechanical durability, and optical transparency enabling applications in photonic, sensing, and electronic devices. However, achieving uniform deposition via plasma‐enhanced chemical vapor deposition (PE‐CVD) has remained challenging due to poor ...
Nour Manafikhi +4 more
wiley +1 more source