Results 11 to 20 of about 609,330 (131)

Oxygen Doping and Crystal–Amorphous Multiphase Coupling Synergistically Improve the Wear Resistance of NiTiCu Alloy

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma   +13 more
wiley   +1 more source

Multiscale Simulation‐Driven Micro‐Bubble Bottom‐Blowing Electrolysis Toward High‐Efficiency Titanium Scrap Recycling

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The large‐scale application of titanium is limited by its high production costs, as well as its low utilization and recycling rates. Therefore, efficient recovery of titanium scrap offers a viable pathway to reduce its cost. Molten‐salt electrolysis offers a promising route for upcycling titanium scrap, but the conventional method, which ...
Haoyu Fang   +4 more
wiley   +1 more source

Synergistic Electron Density and Oxygen Defect Regulation in Fluorite High‐Entropy Oxides for Superior Ionizing Radiation Shielding

open access: yesRare 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

Biomass‐Engineered Defect‐Rich g‐C3N4 Anchors Pd2+‐Rich Ultrafine Particles for Highly Efficient Formic Acid Dehydrogenation

open access: yesRare 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

Systematic Study of Fermi‐Level Pinning at Crystalline Metal/GaN Interfaces: First‐Principles Calculations and Diode Characterization

open access: yesRare 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

A High Capacity‐Long Cycling Concurrent Strategy of Ti3C2/MgH2 for Lithium Storage

open access: yesRare 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

Incremental yield of exome sequencing over standard prenatal testing in structurally normal fetuses: systematic review and meta‐analysis

open access: yesUltrasound 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

类分子势和重层子偶素

open access: yes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
doaj  

基于函数矩阵的一类混沌系统同步 [PDF]

open access: yes, 2014
研究了一类混沌系统的同步问题、基于稳定性理论和极点配置技术,设计了两个混沌系统之间的同步方案,实现两个混沌系统之间的同步,通过函数矩阵,实现驱动系统和响应系统的状态变量按给定的函数矩阵同步,同时证明了该方法同样适用于两个混沌系统之间的滞后同步,通过对Lorenz混沌系统和Lorenz超混沌系统的数值模拟 ...
林立雄, 彭侠夫
core  

分数演算的G-L数值算法中加权系数求解

open access: yes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
doaj  

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