Results 11 to 20 of about 1,086,744 (168)
全球能源互联网, 2018 架空线柔性直流电网是实现大规模可再生能源广域协调互补和可靠送出的有效解决方案，是未来高压大容量柔性直流输电的重要应用方向。直流线路短路电流是柔性直流电网中换流阀、直流断路器及电抗器等关键主设备参数选取的重要依据之一。通过建立双极柔性直流电网单个换流站在直流线路不同短路故障类型下的等效电路数学模型，构建了故障时刻双极柔性直流电网等效电路网络模型，提出了一种适用于双极柔性直流电网的单极接地、单极接中性线及双极短路的暂态短路电流定量分析方法，实现了双极柔性直流电网直流线路任意故障类型 ...
裴翔羽 +5 more
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Gongye shui chuli, 2023 循环冷却水结垢易造成换热效率降低并可能引发安全问题，是实际生产必须重视的问题。相对于投加阻垢剂、石灰软化、离子交换等方法，电化学软化法凭借无需投加药剂、固体产物易分离、易自动化控制的优势，展现出良好的应用前景。但单位面积电极去除硬度的效率低、能耗高及长期运行时硬度去除效率下降的问题限制了其在实际工程中的应用。分析了上述3个问题产生的原因，总结了文献报道的典型对策：依靠提高阴极比表面积、用隔膜分隔阴阳两极改善电极沉积效率低的状况；通过扩大碱性区域、减少电极间距来降低设备运行能耗；通过对阴极的清垢 ...
毛伟, 于洪涛
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Gongye shui chuli, 2023 电活性膜净水技术可借助电化学反应和膜分离的耦合协同作用实现对污染物的短流程高效去除，具有传质效率高、能耗低、抗污染、适应性强等优势，在水处理中展现出巨大的应用潜力。为深入研究电化学水处理技术机理，围绕电活性MXene（E-MXene）膜电极的构造原理与水质净化应用，以典型的MXene及其复合膜电极材料为例，对E-MXene膜电极的构筑原理、策略及其在水质净化领域中的应用研究进行了综述，之后对E-MXene膜电极在重金属去除、油水分离、脱盐及耦合处理技术等领域的研究进展进行了系统性回顾，并对E ...
靳丽敏 +3 more
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The development of metallic catalysts for Suzuki cross-coupling reaction(应用于Suzuki偶联反应的金属催化剂研究进展)
Zhejiang Daxue xuebao. Lixue ban, 2018 Suzuki偶联反应是用于选择性构建C－C键的最通用、最有效的反应之一，特别是用于形成联芳基时非常有效.应用于Suzuki偶联反应的金属催化剂可分为均相和非均相催化剂两大类，均相催化剂的金属配体对催化性能有极强的影响；而非均相催化剂，对催化性能有重要影响的是载体.首先介绍了膦配体与氮配体，分别讨论了其催化活性，其中有些配体展现了极高的性能.还讨论了 MOFs聚合物等传统载体和新型载体.最后展望了配体与载体在Suzuki偶联反应中的应用前景.
HULingjun(胡玲君) +1 more
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Effects of restoration practices on biodiversity in temperate and boreal forests
Conservation Biology, EarlyView.Abstract Several restoration practices are used to mitigate and compensate for the negative effects of large‐scale forestry on biodiversity in temperate and boreal forests. A comprehensive synthesis of the benefits of these practices across taxa is missing. We conducted a systematic review and meta‐analysis on this topic.
Malin Tälle +2 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Many existing rubrics for L2 argumentative writing prioritize form‐based linguistic accuracy and complexity while insufficiently addressing substantive argumentative rigor and effectiveness. This limitation is further complicated by cross‐cultural variation in rhetorical conventions and educational practices, which challenge the direct ...
Zihan Xu, Peiyun Liu
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Gamification has been increasingly implemented for language learning purposes across the globe. However, there remains unknown regarding how the change in gamification design might maximize students’ language learning outcomes and engagement.
Shen Qiao +2 more
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Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT The study aimed to investigate the cultural and gender differences in the attitudes of Israeli Jews and Israeli Arabs toward homosexuality. A self‐reporting questionnaire was completed by 519 participants. A significant difference was discovered between Jewish and Arab individuals, with those who had prior familiarity with the lesbian, gay ...
Vered Ben David, Felix Kaplan
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Gongye shui chuli, 2021 电容去离子（CDI）技术因其操作简便、高效和绿色等优点备受脱盐领域研究者们关注，电极材料一直是CDI领域研究焦点。围绕电容去离子效能提升，以功能化电极材料为核心，针对活性炭、石墨烯、二硫化钼、碳纳米管及金属有机框架等近3年最为热门的材料，综述了它们及其功能化材料在构建策略、电吸附性能增强方面的重要研究进展，并着重对比了它们应用条件差异和电化学性能优劣。通过深度理解构效关系，总结出介、微孔合理立体架构、杂元素掺杂、表面修饰改性的主体修饰策略，以期进一步构建出制备方法绿色、性能优异的电容去离子用电极材料 ...
喻舰 +5 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT This study developed a metal–modified fluoroethylene vinyl ether (FEVE) organic coating on 6061 aluminum alloy, supported by a micro‐arc oxidation (MAO) pretreatment layer, to enhance corrosion resistance and antifouling performance in marine environments.
Chang Liu +5 more
wiley +1 more source