Results 11 to 20 of about 17,327 (130)
生态环境与保护, 2020 利用2013年至2019年白银市区降水监测数据,对213个降水样品进行pH值和电导率的分析,得出2013年至2019年白银地区降水pH均值为7.54,范围为6.85～8.50,电导率均值为87μs/cm,范围为17～502μs/cm之间。每年pH值和电导率第三季度均低于其他季度。
生彩 肖
semanticscholar +1 more source
无锂助熔剂B2O3对Li1.3Al0.3Ti1.7(PO4)3固体电解质离子电导率的影响
, 2017 采用固相法制备锂离子电池用固体电解质磷酸钛锂铝Li1.3Al0.3Ti1.7（PO4）3（LATP），研究了不同烧结温度以及助熔剂对LATP固体电解质离子电导率的影响.采用X射线衍射、能谱分析、扫描电镜和交流阻抗等方法，研究样品的结构特征、元素含量、形貌特征以及离子导电性能.结果表明，在900℃烧结可以获得结构致密、离子电导率较高的纯相LATP陶瓷固体电解质.与添加助熔剂LiBO2的样品进行对比实验发现，采用B2O3代替LiBO2作为助熔剂也可以提高烧结样品的离子电导率 ...
史茂雷 +5 more
semanticscholar +1 more source
Gongye shui chuli, 2021 联合使用在线化学仪表检验装置、痕量TOCi分析仪和离子色谱仪，从仪表测量准确性、有机物污染和无机离子污染等方面分析了某供热机组发生凝结水、给水氢电导率异常波动及超标的原因。根据计算得到的凝结水脱气氢电导率，判定凝结水是否因携带CO2造成氢电导率偏高。分析认为，导致机组氢电导率异常波动及超标的主要原因是凝结水受到余热凝汽器疏水和定排扩容器炉水的污染，从而携带大量无机离子。另外，凝结水脱气氢电导率的计算值略低于氢电导率的测量值，表明凝结水携带少量CO2。
张龙明 +7 more
doaj
Zhejiang Daxue xuebao. Lixue ban, 2003 从"薄板理论"出发,利用良导薄板上磁偶极子源激发的瞬变电磁场电场分量的表达式和互换原理推导出了中心回线瞬变电磁测深法的感应电动势与纵向电导和深度的关系表达式.通过利用感应电动势及其一阶导数表达式作简单数学推导,给出了全区视纵向电导与视深度的反演算法.所求取的视纵向电导曲线不受过渡区影响和其本身固有的特点:曲线斜率大小与电导率成正比;斜率发生变化的位置对应于电性界面;对比一条剖面上相邻的曲线形态,可以连续追踪同一地层界线,形成地电断面.利用这些特征,可获得较高质量的中心回线瞬变电磁测深电性剖面 ...
YANLiang-jun(严良俊) +3 more
doaj +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT With high theoretical capacity and low cost, bismuth sulfide (Bi2S3) demonstrates considerable potential as an anode for sodium/potassium‐ion batteries (SIBs/PIBs). Unfortunately, significant volume variation, low electrical conductivity, and dissolution of polysulfides drastically weaken their intrinsic merits.
Fuyu Xiao +11 more
wiley +1 more source
Atomically Thin Sn:GaN‐GaN Homojunction for High‐Sensitivity β‐Ray Detection
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Gallium nitride (GaN), a third‐generation wide‐bandgap semiconductor renowned for its superior radiation tolerance, holds promise for advanced β‐ray detection. Herein, a scalable liquid metal‐assisted in situ synthesis method is presented to fabricate Sn‐doped GaN homojunctions via gallium oxide printing followed by ammonolysis, enabling ...
Weiqing Liu +8 more
wiley +1 more source
Kinetic‐Controlled Growth of Iron Chalcogenide Nanosheets Featuring Besnus Transition
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Two‐dimensional (2D) Fe‐based nanosheets have sparked wide attention owing to exotic magnetism, superconductivity and topological phases. However, the synthesis of 2D FemXn (X = Te/Se/S, m, n: integer), typically in a non‐stoichiometric ratio, remains challenging because of narrow thermodynamic windows.
Hongmei Zhang +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
wiley +1 more source
Gaoya dianqi, 2019 定量评估油纸绝缘系统中绝缘纸的含水量,能有效为变压器干燥提供决策依据,延长变压器的使用寿命。极化/去极化电流法能无损检测油纸绝缘系统的电导率,文中基于极化/去极化电流（PDC）测量方法,采用极化/去极化电量差计算出绝缘纸电导率,研究了不同含水量浸油绝缘纸电导率的变化规律;并对比了电导电流法与极化/去极化电量差法计算系统电导率时的误差;最后应用电量差法求出了绝缘纸的电导率,采用最小二乘法对绝缘纸电导率与水分含量进行拟合,获得了绝缘纸电导率与绝缘纸含水量之间的定量关系。研究结果表明 ...
张涛, 周远化, 周远科, 李红艳
doaj