Results 21 to 30 of about 11,006 (167)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The transformative potential of gallium nitride high electron mobility transistors (GaN HEMTs) in advancing carbon‐neutral power systems remains bottlenecked by contact resistance (Rc) at the metal–semiconductor (M‐S) interface, a critical determinant of switching losses and frequency response.
Ji‐Zhou Zhang +8 more
wiley +1 more source
Design and Implementation of Precious Metals Trading System For China Construction Bank [PDF]
, 2015 当前我国的经济得到了飞速的发展，随着人们生活水平提高以及投资观念发生改变，贵金属正在步入到我们的生活中来，由于贵金属而引发的各项激烈竞争正在如火如荼的开展起来。 各大银行都在釆取各种措施来吸引客户，以便获得更多的市场占有率，其中一种方式就是简化交易流程，推进贵金属交易的便捷化。正是在当前这种激烈而复杂的竞争环境之下，贵金属的交易和发展才成为了当前人们最为关注的焦点，通过贵金属来提高交易量也是当前最为关注的问题之一。在未来社会中，由于贵金属具有保值的功能，因此贵金属会占领未来的市场，因此建立一个高效、安全、
谭昕
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A Principle of Operation Study on RF Tag Antennas Placed on a Metallic Temporary Equipment for Construction [PDF]
, 2023 departmental bulletin ...
1251 +3 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT With the continuous advancement of materials science and technology, the rare metal gallium has increasingly emerged as a promising alternative to the toxic metal mercury. Although existing research has predominantly focused on the high electrical conductivity and excellent deformability of liquid metal (LM), its intrinsic fluidic property ...
Feifan Guo +6 more
wiley +1 more source
Shiyou jixie, 2015 随着服役年限的增加，导管架海洋平台结构将产生缺陷和损伤。金属磁记忆技术可实现对铁磁性金属构件内部应力集中区的检测，因此可用于对导管架平台结构的应力集中检测。在介绍金属磁记忆检测机理后，将该技术应用到导管架平台结构预检测上，并以CEP导管架平台上部组块为对象开展了应力集中检测。经与超声检测结果对比，验证了金属磁记忆技术在导管架平台结构检测的适用性。研究结果表明，金属磁记忆检测能快速准确地对平台结构进行应力集中检测，其检测结果可为平台年检计划的制定提供依据和参考。
王宁, 吕涛, 徐长航, 陈国明
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Design and Implementation of Management System for Fire Equipment Based on IOT [PDF]
, 2015 近年来，物联网技术快速发展，在装备、器材、物资等物料管理领域得到了初步应用，令物料管理模式从依靠人力管理的模式，逐步向智能化管理模式发展。在消防装备管理领域，种类、数量繁多的消防装备智能化管理模式也亟需建立。本文基于物联网概念，融合智能识别、网络互连、无线通信等元素，形成一个连接于消防装备、消防车辆、消防人员和计算机终端之间的小型物联网，从而提升消防装备管理工作的效率和质量。 本文在研究过程中，以当前消防装备管理工作实际情况为出发点，结合射频识别技术、GPS定位技术、地理信息技术、移动通信技术等关键技术，
吴天琦
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Organic‐inorganic metal halide perovskite solar cells (PSCs) are promising for photovoltaics due to their excellent optoelectronic properties. However, achieving high efficiency and stability remains challenging, mainly due to defects and energy losses at the electron transport layer (ETL)/perovskite interface.
Jiahui Jin +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Although lithium metal has been regarded as an ideal anode material for high‐energy‐density batteries, its practical applications remain hindered by many serious challenges. Three‐dimensional (3D) porous Cu current collectors demonstrate potential in ensuring uniform Li deposition.
Meng‐Qi Zhu +7 more
wiley +1 more source
Shiyou jixie, 2014 为了扩展现有井下工具的适用性与可靠性，为高温、高压、强腐蚀环境下油气资源的开发提供技术储备，针对用于井下工具密封的金属对金属密封技术展开了研究。设计了金属对金属密封组件的结构，并对密封组件的密封原理进行分析。通过有限元方法计算了密封组件在有外层套管约束下的变形和受力情况，确定了密封套筒的变形形状、所需要的下压载荷和下压行程之间的关系。进行了金属对金属密封组件在套管内坐封和试压试验。试验结果表明，下压载荷与下压行程的关系与仿真结果非常接近，坐封后的金属对金属密封组件的环空密封能力达到60 MPa ...
崔晓杰, 张瑞, 韩峰, 马兰荣
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