Results 1 to 10 of about 786,381 (119)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Lightweight and lead‐free radiation shielding materials remain urgently needed. This work designed a fluorite high‐entropy oxide (FHEO) system through a combined computational–experimental route. Density functional theory based on special quasi‐random structures was used to identify thermodynamically stable fluorites from a wide compositional ...
Xiangjie Duan +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Formic acid (FA) is considered to be a safe and convenient hydrogen source; however, achieving controlled and efficient FA dehydrogenation under mild conditions using stable solid catalysts remains a significant challenge. Pd‐based catalysts have been extensively studied due to their superior catalytic activity to other metal catalysts.
Shuai Wei +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The Schottky barrier height (SBH), which serves as a pivotal determinant of charge carrier injection efficiency in electronic devices, critically governs electrical behavior at metal/semiconductor interfaces. However, pronounced metal‐induced gap states at metal contact interfaces induce Fermi‐level pinning, which constrains the ...
Xiaofei Liu +10 more
wiley +1 more source
四川大学学报. 自然科学版, 2015 利用数学归纳法研究了一类具有时滞的非连续函数Bellman-Bihari型积分不等式.与已有结果相比,所得结果无需非线性函数ω∈Θ族函数或ω∈Γ族函数.
米玉珍, 钟吉玉
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Zhejiang Daxue xuebao. Lixue ban, 2008 通过蛋白质分子内两残基间距的概率分布函数P(r)，计算了641个蛋白质分子内近程和远程紧密接触对的形成速率.分析了不同蛋白质结构，不同紧密接触对半径以及DNA的绑定对速率的影响.结果表明：不同结构类型蛋白近程和远程紧密接触对的形成速率的变化趋势恰好相反.近程紧密接触对的形成速率kS随着n（n=|j—i|）的增大而增大，远程紧密接触对的形成速率kL随着n的增大而减小，并且远程紧密接触对的形成速率kL满足kL (n)∝n-γ的关系.γ值随着紧密接触对半径a的增大而变小，当a = 0.6 nm时 ...
SHISu-guang(施苏广) +2 more
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A High Capacity‐Long Cycling Concurrent Strategy of Ti3C2/MgH2 for Lithium Storage
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The excellent electrical conductivity and superior cycling stability render Ti3C2 MXene a promising Li ion battery anode. Nevertheless, the practical implementation of Ti3C2 MXene in commercial applications faces significant challenges, predominantly due to the low specific capacity.
Tingting Xu +9 more
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 552-559, May 2025.ABSTRACT Objective To critically review the literature and synthesize evidence on the incremental yield of prenatal exome sequencing (PES) in fetuses with an apparently normal phenotype with a normal G‐banded karyotype or chromosomal microarray (CMA).
A. Sotiriadis +5 more
wiley +1 more source
四川大学学报. 自然科学版, 1984 在层子模型的基础上,引入Krater型的软心排斥类分子势,能解释J/φ与γ粒子的径向激发谱和轻子衰变宽度比,对J/φ与γ粒子的原点函波函数值也进行了讨论。
吴邦惠, 胡诗可, 宋子立
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四川大学学报. 自然科学版, 2007 从分数演算基本的G-L定义出发,引出G-L数值算法中加权系数——G-L加权系数与广义二项式系数之间的关系,进而通过Γ函数来求解G-L加权系数.而后用加权系数的参数构建一个二维平面,使这些参数由整数域拓展到整个实数域,实现了分数演算中加权系数和对应二项式系数的推广.最后利用Matlab语言编程实现,为分数演算的数值计算提供方便、快捷的工具.
张恒 +4 more
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Gaoya dianqi, 2018 提出使用绝缘子红外图像和支持向量机相结合的方法对不同污秽程度、空气湿度和空气温度下的零值绝缘子进行自动检测。首先对现场得到的绝缘子串红外图像进行预处理操作。在对绝缘子串红外图像进行预处理后,利用二维Otsu算法对红外图像进行分割,得到标记了绝缘子串的二值图像。利用边缘检测算法提取出绝缘子串的边缘图像。采用最小二乘法对绝缘子盘面边缘图像进行拟合,得到盘面椭圆方程,利用椭圆方程提取出单个绝缘子盘面。对单个绝缘子盘面进行温度特征提取,利用三因素方差分析方法对特征参数进行显著性检验,挑选受绝缘子污秽程度 ...
苑利, 赵锐, 谭孝元, 苟先太
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