Results 31 to 40 of about 813,017 (152)
Functional Ecology, Volume 40, Issue 7, Page 2221-2236, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic nitrogen (N) deposition is a major driver of global change. However, its effects on the developmental plasticity of plant nutrient strategies remain poorly understood.
Quan Li +11 more
wiley +1 more source
Review of Policy Research, Volume 43, Issue 4, July 2026.ABSTRACT The accelerated digitalisation of society has amplified cybersecurity threats and revealed their cross‐sectoral nature. Yet, the policy instruments used to address these challenges remain insufficiently examined. This study conducts a scoping review of 980 academic articles (2007–2024) and applies Hood's NATO framework (Nodality, Authority ...
Benedetta Cotta, Maria Stella Righettini
wiley +1 more source
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT In an era of proliferating but divergent data protection regimes, the European Union's rights‐based approach and China's sovereignty‐centric model have become two dominant poles of global data governance. This article examines how multinational enterprises navigate compliance under these dual systems and how that compliance is shaped through ...
Yiping Cao
wiley +1 more source
竖向荷载下半刚性连接组合框架的实用设计方法(Ⅰ)——梁柱节点设计
Jianzhu Gangjiegou Jinzhan, 2006 虽然在钢框架结构设计中考虑半刚性连接和楼板的组合效应会产生良好的结构经济性,但是在实际工程中仍很难应用,主要原因是缺乏合适简便的设计方法。本文在国内外研究的基础上,结合我国钢结构设计规范GB50017-2003,给出了竖向荷载下半刚性连接组合框架的实用设计建议方法。设计建议方法包括满足两个极限状态的节点、梁、柱设计,较好地解决了梁挠度和柱有效长度系数计算中节点连接刚度的合理选取、半刚性特征对梁挠度和柱计算长度的影响。该方法不仅反映了节点和框架的实际性能,而且简便实用,符合工程师对普通钢框架的设计习惯 ...
李国强, 王静峰, 刘清平
doaj
Intelligent Material Framework for Data Mining and Performance Prediction of Invar Alloy
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Invar alloys exhibit a low coefficient of thermal expansion (CTE) over a wide temperature range and are regarded as critical materials for precision engineering and aerospace applications. In this work, an integrated OLR‐IMF (an intelligent material framework based on optical character recognition [OCR], large language models [LLMs], and ...
Tongbo Jiang +11 more
wiley +1 more source
, 2008 组织际关系治理是以企业间的竞争合作为基点,以提高组织间关系治理绩效、保护和增强自身的核心技术和关键能力为目的,是企业获得竞争优势的重要来源。讨论了不同学者对组织际关系治理内涵的阐述,在相关文献基础上,从交易成本理论、社会关系理论、基于资源的观点和通信信息技术战略等视角出发,系统总结了影响组织际关系治理的关键因素,重点对组织际关系治理框架进行综述,并分析了各种研究框架的理论视角、治理机制、应用领域、研究方法以及控制变量等,为组织际关系治理的理论研究提供素材 ...
张群洪, 刘震宇
core
方套方中空夹层钢管混凝土柱与钢-混凝土梁单边螺栓端板连接节点数值分析
Jianzhu Gangjiegou Jinzhan, 2020 为了揭示方套方中空夹层钢管混凝土柱与钢-混凝土组合梁单边螺栓端板连接的受力性能和破坏机理,通过ABAQUS有限元软件建立了该组合节点的数值分析模型,明确了材料本构关系模型和复杂接触问题。通过水平低周往复荷载试验验证了数值分析模型的准确性,对其破坏模式和滞回曲线进行了评价。考虑了几何参数、材料参数、荷载参数对节点水平荷载-水平位移曲线的影响,讨论了极限承载力和初始刚度的影响规律。研究表明,方套方中空夹层钢管混凝土柱与钢-混凝土组合梁单边螺栓端板连接节点具有良好的抗震性能和受力性能 ...
王静峰, 端梦珺, 郭磊, 张猛
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Cross‐scale assembly of metal (sub) nanoparticles and/or single atoms into millimeter/nanostructured metal monolithic catalysts (Min‐SMCs) is highly appealing for sustainable water cleanup, due to energy‐efficient catalyst recyclability, high infrastructure compatibility, and low metal‐releasing risks.
Jia‐Cheng E. Yang +4 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2010 传统的设计和分析都将框架的梁柱节点处理成理想的刚接或铰接。然而,实际工程中的连接一般很难达到这两种理想状态,大部分连接的受力性能介于这两者之间,为半刚性连接。在组合框架中,组合楼板和纯钢梁柱端板连接节点组成了一种新的连接形式-半刚性组合连接。针对我国目前还没有关于平端板连接梁柱组合节点设计规定的现状,基于现有的研究成果,本文提出了平端板连接半刚性组合节点设计的方法和建议,可为我国相应规范的修订提供参考。
刘秀华, 巢沧海, 石文龙
doaj
Functional Ecology, Volume 40, Issue 6, Page 1921-1932, June 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Most terrestrial plant species form symbioses with arbuscular mycorrhizal fungi (AMF). However, the below‐ground carbon (C) allocation of plants and the nutritional and growth benefits provided by AMF within this symbiosis vary greatly across species and environments ...
Hengjun Zhao +3 more
wiley +1 more source