Results 121 to 130 of about 27,614 (267)
Rare Metals, EarlyView.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
Shuitu Baochi Xuebao目的为深入了解极端气候事件对秦巴山地植被净初级生产力的影响。方法以秦巴山区为例证区，使用1960—2023年161个气象站点观测数据与2001—2020年MOD17A3数据集，应用拟合回归、岭回归等分析方法，研究二者时空演变和量化极端气候指数对NPP变化趋势的贡献量。结果1）研究区NPP总体发展向好，年平均增长率为5.02 g/（m²·a）（以C计）。2）1960—2023年秦巴山区极端暖事件显著增加，极端冷事件显著减少，而极端降水事件变化不明显。3）冷日持续日数、冰冻日数、冷夜日数、持续干期、中雨日数、
郝成元, 曾秋强
doaj
CX3CR1 regulates the development of renal interstitial fibrosis through macrophage polarization. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2023 Xu L +5 more
europepmc +1 more source
Synthesis and Modification of High-voltage Lithium Nickel Manganese Oxide Cathode Material for Lithium-ion Batteries [PDF]
, 2014 随着锂离子电池的应用从手机、数码相机和笔记本电脑等电子仪器领域扩展至电动汽车、通信技术和移动存储设备等领域，人们对锂离子电池的性能，特别是对功率密度和工作电压，提出了越来越高的要求。锂离子电池工作电压和功率密度等性能，主要由正极材料决定。因此，发展高电压正极材料是发展高能量密度锂离子电池重要的研究方向之一。 LiMn2O4(LMO)具有低成本、低毒性和良好的安全性能等优点，被认为是一种理想的正极材料。然而LMO能量密度低，研究表明当向LMO掺杂一定量的镍形成镍锰酸锂LiNi0.5Mn1.5O4(LNMO)
王静
core
Rare Metals, EarlyView.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
Gaoya dianqi, 2014 为了研究绝缘油老化对变压器油纸绝缘时域介电特性测量结果的影响,以更准确地分析和评估油纸绝缘老化状态,对油浸纸试品进行加速热老化,获取3组不同老化程度的变压器油试样并分析其理化参数。对新绝缘纸试品进行真空干燥,然后使用3组油样分别对干燥的纸样进行充分浸渍获得3组油老化状态不同的油浸纸试品。对每组油浸纸试品进行极化去极化电流（polarization and depolarization currents,PDC）测量,分析油老化引起的油纸绝缘时域介电特性变化。结果表明,变压器油老化后,油中微水含量、酸值 ...
王世强 +5 more
doaj
The effect of thyroxine on ATP-sensitive potassium channels and cardiolipin synthesis [PDF]
, 2015 甲亢性心脏病（HyperthyroidHeartDisease,HHD）是甲状腺功能亢进（Hyperthyrodism）的严重并发症，严重危害患者的生命健康，但其机制尚未完全阐明。心磷脂（Cardiolipin，CL）是主要位于线粒体内膜的特殊磷脂，在维持正常的线粒体功能中具有至关重要的作用。本课题组前期研究表明甲亢小鼠心脏中心磷脂含量升高，并且心磷脂参与甲亢性心脏病的病理过程。此外，文献资料显示甲亢会引起心磷脂侧链的C18:2的丢失，同时引起侧链中多不饱和脂肪酸含量的增多 ...
侯琦
core
Rare Metals, EarlyView.ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li +4 more
wiley +1 more source
[Research progress on the effect of iron oxide nanoparticles in macrophage polarization]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023 Zhang H +5 more
europepmc +1 more source
Rare Metals, EarlyView.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