Results 81 to 90 of about 18,206 (246)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
Female Employment Choices and Income Responses,An Empirical Study Based on the Data of CGSS (2010-2013) [PDF]
, 2017 本文基于中国综合社会调查（CGSS）2010年——2013年的调查数据，根据雇佣方式以及单位性质的不同，结合就业风险及稳定性，将中国从事非农职业的女性就业选择分为：自我雇佣、国有企事业单位、集体企事业单位、私营等其他单位以及临时就业五类。首先，运用多元logit回归模型分析影响城镇和农村女性就业选择的因素；其次，利用OLS多元线性回归模型，分析城镇和农村女性不同就业选择的收入效应。 对就业选择而言，城乡女性的就业选择依据工作的稳定性排列，就业偏好表现出：国有企事业单位>集体/私营单位>自我雇佣/临时就业。
田越
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Expanding near‐infrared (NIR) spectral response and utilizing ultraviolet (UV) photons are effective strategies for enhancing the power conversion efficiency (PCE) of lead halide perovskite solar cells (PSCs). However, the range of NIR spectral response extension and the utilization of UV light for devices are not enough, and the loss of ...
Li He +9 more
wiley +1 more source
Gaoya dianqi, 2015 针对三相分立式永磁机构断路器对其配套永磁机构的小型化、低电压、小电流、大保持力等特殊要求,设计并研发了一套新型永磁机构。笔者主要研究在较低电压下永磁机构的分、合闸过程中动铁心的位移、速度等机械参数与时间的关系,确定线圈电流、静态保持力等优化参数。采用有限元法对永磁机构进行分析研究,在Maxwell 2D建立了永磁机构的仿真模型,并根据仿真结果结合样机数据对三相分立式永磁机构优化设计。试验结果证明,优化后的永磁机构各项技术参数达到了设计要求。
林莘 +4 more
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Design and Implementation of Housekeeping Network Service Platform for a City [PDF]
, 2015 随着经济社会全面发展，由于人们生活水平的提高，产业结构优化速度加快，使得政府服务业不断扩展，服务分工不断细化，服务企业越具规模化，服务内容不断延伸，业务经营模式呈现出多样化的发展趋势。建立家政网络服务平台是为城市居民搭建的一个便捷式、广覆盖的便民服务类网络平台，将门户网站功能、呼叫中心功能、跟踪回访功能以及连锁门店业务系统功能有机融合，实现订单服务，有客户自主评价、服务企业信誉度自动生成等功能，各类服务资源开放共享。 本项目针对解决以上问题，以某市12343服务在线平台为背景 ...
彭钰
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT As a core component in the electrochemical water splitting system, the cathode catalyst is capable of boosting the kinetics of the hydrogen evolution reaction (HER), while the scarcity and expenditure of current noble metal‐based electrocatalysts seriously restrict the large‐scale commercial development of hydrogen manufacturing devices. Here,
Haiyan He +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li +5 more
wiley +1 more source
Studies on Green and Low-carbon Development Path of China’s Commercial sector [PDF]
, 2017 随着资源耗竭和环境气候恶化，国际上对通过节能减排实现绿色可持续发展的关注度越来越高。长期以来，中国的能源和环境治理主要集中在高污染高能耗行业，对其他行业关注较少。但是，随着中国经济进一步发展转型，经济重心将从高污染高能耗行业向其他行业转移。这就要求我们在研究能源和环境问题时，要从全行业的角度展开研究。 商业部门代表消费为主导的经济模式，在中国逐步迈入中高等收入国家行列的进程中，将伴随人民生活水平的不断提高，持续加速发展，是中国经济未来的核心部门，发展潜力巨大。本文以商业部门为研究切入点 ...
王爱伦
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
wiley +1 more source
Guangtongxin yanjiu, 2015 为了降低环境温度变化对外腔可调谐激光器波长稳定性的影响,采用有限元分析方法得出了外腔可调谐激光器的温度场分布特点和热变形机理,提出了一种优化的光具座结构,并对优化结构的散热性能和热变形进行了理论分析和数值模拟。结果表明,该优化的光具座结构具有高效的传热性能,大幅降低了热变形对腔长的影响,从而提高了激光器的在不同工作环境温度下的波长稳定性。
李长安, 江毅
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