Results 21 to 30 of about 8,837 (132)

Constructing a Favorable Microenvironment for Robust Hydrogen Storage in MgH2 Through Synergistic Cooperation With Mn and Mg2Ni

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Weakening the electrostatic attraction between Mg2+ ions and H− ions in MgH2 is vital for improving the kinetic performance of MgH2 for hydrogen storage. Herein, a multivalent microenvironment is synergistically created by Mn and Mg2Ni to break the stable structure of MgH2, enabling rapid and stable de/hydrogenation performance.
Ya‐Ke Wu   +7 more
wiley   +1 more source

Abstracts

open access: yes, 2022
Cancer Science, Volume 113, Issue S1, Page 1-1874, February 2022.
wiley   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

Seismic Response Analysis and Damage Evaluation of Curved Continuous Rigid Frame Bridge [PDF]

open access: yes, 2015
曲线桥具有线形适应性强、造型美观等优点,在我国的公路和城市桥梁中得到了广泛的运用。而连续刚构的形式因为能合理调整结构的受力情况,且避免设置支座,也深受设计者的青睐。近年来,地震频发,曲线桥与相同跨径的直线桥相比震害显著,连续刚构桥也显示出一些自身的震害特点。本文在总结曲线桥抗震研究进展、常见震害特点以及地震反应计算理论与损伤评估方法的基础上,以一座曲线连续刚构桥为工程背景,进行反应谱分析与时程分析,研究该桥在地震作用下的响应以及对其进行地震作用下的损伤评估。首先通过计算对比 ...
林灏
core  

Lewis Acid–Base Interactions Enable Sustained Catalytic Activity for Polysulfide Conversion in Lithium‐Sulfur Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Lithium‐sulfur batteries (LSBs) face sluggish sulfur reduction reaction kinetics and severe polysulfide shuttling issues, which significantly limit their performance. In this work, a multifunctional separator with a 3D porous framework featuring confined pore structures and selective adsorption capability is constructed to address these ...
Mengchen Zhang   +12 more
wiley   +1 more source

The Two Faces of Introgression in Conservation Biology 基因渗入在保育生物学中的双重面貌

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 339-344, September 2025.
Conservation biologist need to take into account the various aspects of introgression in their attempts to protect the species integrity and evolutionary potential of threatened species. To do so, they have to overcome the bias created by the Mayrian species concept that considers species as having distinct gene pools.
Harald Schneider, Charles H. Cannon
wiley   +1 more source

A Comparison of the Effects of Habitat Type and Human Influence on Occupancy of Freshwater Turtles in the Mississippi Embayment 栖息地类型与人类影响对密西西比湾淡水龟分布影响的比较

open access: yesWildlife Letters, Volume 3, Issue 2, Page 46-55, June 2025.
Pond and riverine turtles respond to land‐use in similar ways being sensitive to increased exposure to roads but resilient to agriculture. ABSTRACT Freshwater turtles are highly diverse in the southeastern United States, yet few studies document how diversity is distributed in agricultural and rural landscapes.
Rowland Fournier   +7 more
wiley   +1 more source

带肋薄壁方钢管混凝土柱抗震性能研究

open access: yesJianzhu Gangjiegou Jinzhan, 2021
对7根设肋薄壁方钢管混凝土柱进行了拟静力试验,研究了加劲肋设置数量、轴压比和长细比对试件的承载能力、延性和耗能能力的影响。同时使用ABAQUS软件对带肋薄壁方钢管混凝土柱进行了受力全过程分析,模拟结果与试验结论基本一致。研究结果表明:在达到承载力前,无肋试件已经发生鼓曲,鼓曲在达到承载力后迅速增大从而导致焊缝开裂,钢管对混凝土的作用未充分发挥时试件就已破坏。带肋试件由于加劲肋对外部钢管的拉结作用,延缓了试件局部鼓曲的发生,试件材料性能得以充分利用,因此带肋试件的承载力、延性性能和耗能性能均优于无肋试件 ...
邢新, 李斌, 高春彦
doaj  

Mobilising the Entrepreneurial Self to Manage the Crisis: Community Group‐Buying during the Shanghai Lockdown

open access: yesAntipode, Volume 57, Issue 3, Page 1148-1171, May 2025.
Abstract The COVID pandemic disrupted traditional entrepreneurial governance arrangements. When the state's action could not effectively govern society, the “entrepreneurial self” began to emerge and manage the crisis. Using Shanghai as a case study, this research examines the dynamics of “community group‐buying” during its city‐wide lockdown in 2022 ...
Ying Wang   +3 more
wiley   +1 more source

大吨位销轴连接节点的静力性能研究

open access: yes
目前销轴连接节点已被广泛运用于实际工程中,但大吨位销轴连接节点足尺试验还较为少见,销轴与耳板间相互作用对节点承载力的影响研究仍有所不足。为研究是否设置内耳板加劲板、销轴制造误差、销轴盖板是否松动等因素对销轴连接节点力学性能的影响,完成了2组2 000吨级的足尺试验和10组有限元模型分析。研究结果表明,加劲板对限制内耳板变形的作用较强,但对限制外耳板相对变形的作用较弱;设置加劲板可以有效降低销轴中部的应力水平,但也将导致销轴端部的应力集中现象加剧 ...
丁颖楠, 周尧, 郭小农
core   +2 more sources

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