Results 21 to 30 of about 9,553 (117)

Functionalized Silica‐Constructed Self‐Supporting Composite Separator for Lithium Metal Batteries

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Lithium metal batteries (LMBs) are considered highly promising next‐generation energy storage systems owing to their exceptionally high theoretical specific capacity and ultralow electrochemical potential. Nevertheless, the practical deployment of LMBs is still severely restricted by the uncontrollable formation and propagation of lithium ...
Li Chen   +6 more
wiley   +1 more source

Boosting Decomposition and Combustion of TKX‐50 and HTPB/TKX‐50 Propellants With NH2‐MIL‐88B(Fe) MOF

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Dihydroxylammonium 5,5′‐bistetrazole‐1,1′‐diolate (TKX‐50) is a promising energetic material that possesses both exceptional energy density and low sensitivity. Nevertheless, its application is hindered by incomplete pyrolysis during combustion or explosion. Various strategies, including eutectic formation, composite preparation, and catalysis,
Jingwen Chen   +10 more
wiley   +1 more source

Tailored Plasmon‐Like Resonance on Ultralight Fly Ash Honeycomb for High‐Efficiency Electromagnetic Absorption

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Reflection loss (RL) ≤ −15 dB (corresponding to 96.875% electromagnetic energy absorption), a core metric for moderate‐ to high‐temperature (< 600°C) electromagnetic protection materials, is critical for ensuring the reliability of aerospace high‐temperature structural components.
Chunyan Ding   +10 more
wiley   +1 more source

基于双椭球热源模型的立管焊接残余应力研究

open access: yesShiyou jixie, 2015
根据铺管时的实际工况,建立了深水钢悬链线立管的焊接有限元模型,采用双椭球热源模型模拟焊接中的移动热源,运用Fortan语言对模型进行汇编,并运用DFLUX子程序进行ABAQUS的二次开发。在仿真中运用单元生死技术来模拟焊料单元的焊接参与情况,分别选取不同的焊接参数进行焊接模拟,利用控制变量法进行立管焊接残余热应力及其影响因素研究。研究结果表明,立管焊缝处单位体积的热输入量以及单位体积的受热时间是影响残余应力场的主要因素;立管的几何参数在影响焊接残余应力场的同时也影响残余应力场应力较高区域 ...
庹, 鑫, 段梦兰, 范, 晓, 刘秉奇
doaj  

Biomass‐Derived Laser‐Induced Graphene: From Precursor Chemistry to Device Integration

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Laser direct writing provides a mask‐free route for converting suitable carbon‐containing precursors into patterned, porous, and conductive laser‐induced graphene (LIG) networks. Although LIG was initially demonstrated mainly using aromatic synthetic polymers, such as polyimide, biomass precursors introduce renewable feedstocks with highly ...
Wanjun Yin   +10 more
wiley   +1 more source

平行反应的热动力学研究法(Ⅰ)——平行准一级反应

open access: yes四川大学学报. 自然科学版, 1999
根据热动力学基本理论,推导了平行一级反应的热动力学方程,建立了热谱解析平行反应动力学参数的数学模型,实验结果验证了方法的正确性.
谢家庆, 陈勇, 汪海东, 曾宪诚
doaj  

Carbon Nanorods With Adhered Monodisperse Cobalt Nanoparticles Exhibiting Electromagnetic Wave Absorption and Antibacterial Potential

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li   +10 more
wiley   +1 more source

Scientists’ warning on the global destruction of rock outcrop ecosystems

open access: yesConservation Biology, Volume 40, Issue 5, October 2026.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula   +19 more
wiley   +1 more source

热动力学研究的时间参量法(V)——等浓度三级反应的双谱解析法

open access: yes四川大学学报. 自然科学版, 1999
根据热动力学基本理论,建立了一种新的热动力学研究法——等浓度三级反应的双谱解析法,该法利用两张谱曲线的特征热谱数据a*m,Δm和tm使能以简单的数学形式求解化学反应速率常数.通过对环氧氯丙环开环反应的热动力学研究 ...
谢家庆   +5 more
doaj  

基于三维热力场耦合分析的换流变压器网侧干式套管拉杆连接结构力学计算及优化设计

open access: yesDianci bileiqi, 2023
换流变压器网侧套管在换流站系统运行中承担着关键作用,但在实际运行中其拉杆连接结构多次发生如拉杆断裂、拉杆与载流端子松脱等故障。本研究针对某出现故障的550 kV换流变网侧干式套管,采用三维电磁-热-流场耦合分析方法及热力场耦合分析方法,建立了套管及拉杆连接结构精细化模型,考虑了热传导、热对流、热辐射等条件,计算了网侧套管温度场及应力应变场分布。结果表明:换流变网侧干式套管的拉杆连接系统附近温度较高,拉杆表面大部分区域受到较大应力作用,拉杆与载流端子插接处应力极大 ...
赵子辰   +7 more
doaj  

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