Results 51 to 60 of about 26,411 (164)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional electrocatalysts is a key challenge for the industrialization of hydrogen production by water electrolysis. In this work, Co‐doped NiS/Ni3S2 heterostructured nanowire arrays (Co–NiS/Ni3S2 NA) were successfully constructed by precisely modulating the phase‐selective behavior of nickel ...
Xing‐Hang Liu +2 more
wiley +1 more source
Guangtongxin yanjiu, 2018 搭建一个双向拉曼放大超长跨距光纤传输系统,在接收端采用非线性补偿算法来补偿因传输距离长和入纤光功率高所带来的光纤非线性效应,并通过实验成功实现了10Gbaud/s 16正交幅度调制（QAM）信号的传输,传输距离为300km。仿真和实验结果表明,通过采用非线性补偿算法,接收端信号的性能相比未使用非线性补偿算法时提高了2dB。证明了非线性补偿技术在超长跨距光纤传输系统中是非常有效且必要的。
周文婷 +7 more
doaj
On the precursor of the flux and path variation of Kuroshio in the East China Sea [PDF]
, 2016 本文利用区域海洋模式系统（RegionalOceanModelingSystem，ROMS），针对东中国海海域（渤海、黄海和东海），建立了高分辨率三维斜压海洋模型，其长期模拟结果成功再现了东中国海和西太平洋暖池部分海域的主要海洋环境特征，及黑潮月、年际和年代际的变化。在此基础上，通过大量敏感性试验，研究了在7天尺度上可以导致PN断面处黑潮流量发生异常变化的前期征兆以及吐噶喇海峡处黑潮路径变异的前期征兆；另外，基于模式模拟结果、沿海验潮站水文数据等资料，本文也分析了东中国海海平面演变的空间差异 ...
吕观通
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Tellurium (Te), emerging as a promising alternative to sulfur (S) and selenium (Se), offers significant advantages for potassium (K) ion storage due to its comparable theoretical volumetric capacity (2619 mAh cm−3) and higher electronic conductivity (∼102 S m−1), which promotes rapid charge transfer and improves reaction kinetics.
Sung Woo Cho +7 more
wiley +1 more source
Review of Policy Research, Volume 43, Issue 2, March 2026.ABSTRACT This study examines the paradoxical relationship between policy learning and capacity: governments need certain capacities to learn effectively, yet these same capacities often emerge from previous learning experiences. Through a comparative analysis of Hong Kong and Singapore's responses to SARS and COVID‐19, we demonstrate how policy ...
Shubham Sharma, Xun Wu, Gleb Papyshev
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2020 采用现有方法分析索网结构非线性动力反应时,仅能对矩形平面索网结构建立等效单自由度(ESDF)模型,地震作用下,此类结构的响应只能采用时程法进行计算。基于结构整体刚度参数的概念,结合模态推覆分析方法,建立了任意形状索网结构的非线性ESDF模型,该模型刚度特性与Duffing系统相同。采用能量平衡法,导出了索网结构非线性ESDF体系的等效线性刚度ke与位移反应d的关系;结合ESDF体系的等效质量,将加速度-周期(a-T)格式的设计反应谱变换为刚度-位移(k-d)格式;与ke ...
罗立胜, 陈志华, 韩小燕
doaj
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Intervertebral disc degeneration (IDD) is a predominant cause of low back pain, significantly impacting quality of life. Mitochondrial fitness is essential in the progression of IDD, as it regulates cellular senescence and pyroptosis. This study investigates the role of mitochondrial caseinolytic protease P (ClpP) in alleviating senescence and
Kun Wang +7 more
wiley +1 more source
An Empirical Study on Interest Rate Policy and Banks' Risk Appetite Based on PSTR Model [PDF]
, 2016 次贷危机爆发以后，国外许多学者致力于危机成因的研究，其中具有代表性的成果是提出了货币政策的风险承担渠道。在对风险承担渠道的研究中，国外许多学者认为：长期宽松的货币政策（低利率）激励金融机构承担了过多的风险，导致了金融系统的脆弱性，从而诱发了金融危机。虽然此次危机对我国影响有限，但是在目前利率市场化的大趋势下，货币政策工具从数量型工具向价格型工具过渡，利率对银行风险偏好的影响势必关系到整个金融系统的稳定性。 在以往的研究中，主要是以广义货币M2作为货币政策的代理变量 ...
李伟
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Photodetectors, based on GaAs nanowires (NWs), hold significant promise in the fields of high integration micro‐ and nano‐optoelectronics applications because of their outstanding electronic and optical properties. To date, significant efforts have been directed toward enhancing the performance of photodetectors, aiming for high detectivity ...
Yu Hao +11 more
wiley +1 more source
Study on Dependence between China Mainland’s and the Main International Stock Markets Based on Different Perspectives [PDF]
, 2016 随着经济全球化的不断推进，国际资本市场逐渐呈现一体化趋势。作为反映国民经济的“晴雨表”和资本市场的重要组成部分，各国股票市场间存在怎样的关系呢？股市间的相依性结构对投资者合理制定投资组合策略以及监管当局有效防范国内外股市风险，维护市场稳定，推进股市健康发展具有重要的启示意义。中国已经成为全球第二大经济体，大陆股票市场也在近十年迅速发展。研究中国大陆股票市场与世界股票市场间的相依性结构具有重要的现实意义。 股市间的相依性历来是人们关心的重点，学者们对其进行了大量的研究。阅读已有相关文献 ...
崔振
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