Results 41 to 50 of about 1,230,545 (167)
Jellyfish blooms restructure plankton dynamics and trophic linkages in coastal waters
Functional Ecology, Volume 40, Issue 5, Page 1443-1460, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Jellyfish blooms are increasing globally in frequency and intensity, introducing complex ecological interactions, yet the mechanisms by which they alter ecosystem structure remain poorly characterized due to a lack of sustained field observations.
Pengpeng Wang +4 more
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Overreliance on Orthographic Similarity in L2‐Japanese Conceptual Processing by L1‐Chinese Learners
International Journal of Applied Linguistics, Volume 36, Issue 2, Page 1807-1820, May 2026.ABSTRACT Orthographic and phonological similarities between first (L1) and second (L2) languages can facilitate L2 processing. Particularly, L1‐Chinese learners of L2‐Japanese can benefit from the shared morphosyllabic Chinese characters (Japanese kanji/Chinese hanzi) because of their similar orthographies.
Xuehan Zhao, Kexin Xiong, Sachiko Kiyama
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, 2010 讨论用直通型激波风洞进行热流实验较激波管和激波风洞的优势,提出运用直通型激波风洞来进行热流实验的设想;而后分别给出采用理想气体模型和考虑高温真实气体效应的平衡流模型所确定的直通型激波风洞热流实验的模拟条件;并通过对比激波管和直通型激波风洞的参数得出在同样的驱动情况下,直通型激波风洞能够提高初始压力,有利于直接起始爆轰 ...
李进平, 陈宏, 陈兵
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT MXenes have been widely investigated as microwave absorption (MA) materials because of their unique properties. This study introduces a terminal bond manipulation strategy to enhance charge transfer and polarization in Ti3C2Tx, optimizing its MA performance.
Xiang Fang +8 more
wiley +1 more source
Dianci bileiqi, 2019 高压输电线路跳闸主要是由雷击引起的。研究雷击电流波形能有效地提高判别雷击故障的准确性。且雷击产生的暂态信号在特定条件下可能对行波保护和暂态量保护产生不良影响,使其误动。针对这一情况,本文分别对雷击输电线路不同位置产生的电流行波进行详细的分析。并研究了雷击闪络与雷击未闪络的机理,发现雷击闪络产生的行波总体上呈现出单调变化,雷击未闪络时产生的行波在零轴上呈正负交替变化。针对这一发现提出了一种基于零序电流的输电线路行波保护雷击干扰识別方法。
纪思 +4 more
doaj
Dizhen xuebao面波频散成像在研究地下介质波速结构方面起着重要作用，然而目前公开的面波频散成像工具大多在命令行环境下运行，使用不同种编程语言对数据进行前后处理，对于普通用户而言：① 运行环境的配置难度系数高；② 需要较强的编程能力进行数据加工以及结果展示。为解决上述问题，本文基于PyQt5开发了一款易于部署在Windows 11操作系统上的面波频散曲线成像平台（SWDIT）。SWDIT已集成多种模块，包括半波长法模块、三维面波走时反演模块、三维数据可视化模块，可对用户输入的频散曲线信息进行灵活成像 ...
Jing Hu +4 more
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Shuitu Baochi Xuebao, 2023 油松作为我国北方地区典型的森林植被类型,研究辐射能量在其冠层中的分配、收支及传输,是构建森林冠层辐射传输模型和生态过程模型的理论基础,对阐明森林植被群落中能量流动和物质循环机理具有重要意义。基于贺兰山生态站油松林通量塔定位观测获取的上、下行长短波辐射、光合有效辐射(photosynthetically active radiation,PAR)以及气象数据,分析2021年4—9月不同天气和季节条件下油松林冠层的辐射能量截获及传输特征。结果表明:(1)晴天条件下太阳总辐射的日变化表现为光滑的"单峰"曲线 ...
田静 +9 more
doaj
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The development of novel oxygen electrocatalysts with cost‐effectiveness, scalability, high catalytic activity, and stability presents a significant challenge for zinc–air batteries (ZABs). The nitrogen‐rich lignin coordination network structure is synthesized through amine modification of lignin.
Ping‐Xian Feng +8 more
wiley +1 more source
Gaoya dianqi, 2018 为了研究特高压直流输电中直流偏磁引起的谐波对换相失败的影响,利用谐波换相电压时间面积的分析方法,分析直流偏磁引起的谐波与换相失败的关系。首先,在PSCAD/EMTDC中搭建了±800 kV特高压直流输电模型,并对双极平衡的运行工况以及单极—大地运行工况下,发生故障时,谐波、励磁电流、熄弧角以及阀电流的情况进行仿真。其次,对仿真结果进行分析,发生直流偏磁引起的谐波对换相失败有一定影响。最后,利用谐波的换相时间面积进行定量的计算。结果表明,直流偏磁引起的谐波会增大换相失败的风险。
常鹏 +5 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu +9 more
wiley +1 more source