Results 51 to 60 of about 14,418 (119)
Designing Integrated Policies for the Twin Transition: Challenges and Tradeoffs
Policy Studies Journal, EarlyView.ABSTRACT Democratic governance faces the intertwined imperatives of managing the transformative risks and opportunities of digitalization, particularly stemming from artificial intelligence (AI), while achieving environmental sustainability within planetary boundaries.
Martino Maggetti
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Gaoya dianqi, 2023 随着风电、光伏新能源装机容量和占比的不断提升，中国电网所面临的新能源全额消纳和电网调峰矛盾日益严峻。针对新能源对电网调峰特性影响问题，文中提出了一种新能源对电网调峰能力影响的量化指标；基于历史运行数据，首先分析提取新能源对电网净负荷曲线特征的影响特征，然后从新能源对负荷低谷值、峰谷差影响的角度提出了量化评估指标；最后，结合某省级电网运行数据，对新能源对电网调峰能力影响进行了评估分析，并利用所提指标研究了该省电网2021年的新能源消纳形势，结果表明 ...
金梦, 朱鑫要, 周前
doaj
Policy Studies Journal, Volume 54, Issue 3, August 2026.ABSTRACT As the Narrative Policy Framework (NPF) begins to unpack issues of power and narratives, the main focus has been on power‐over and domination rather than more transformative notions of power‐to and empowerment. This article draws on insights from gender and policy studies and suggests that the NPF benefits from adopting a multifaceted notion ...
Hilda Broqvist
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Microstructure Engineering Toward High Cost‐Effective Nd–Fe–B Sintered Magnets: A Review
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Nd–Fe–B sintered magnets, critical for enhancing electromechanical conversion efficiency and operational stability in wind turbines and electric vehicle drives, are prized for their outstanding coercivity, high remanence, and superior maximum energy product.
Dongmin Zhang +5 more
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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
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Kinetic‐Controlled Growth of Iron Chalcogenide Nanosheets Featuring Besnus Transition
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Two‐dimensional (2D) Fe‐based nanosheets have sparked wide attention owing to exotic magnetism, superconductivity and topological phases. However, the synthesis of 2D FemXn (X = Te/Se/S, m, n: integer), typically in a non‐stoichiometric ratio, remains challenging because of narrow thermodynamic windows.
Hongmei Zhang +11 more
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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
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
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Dianci bileiqi, 2023 针对新能源送出型电网在暂态故障下容易产生过电压问题，提出考虑暂态过电压抑制的新能源送出型电网无功优化方法。首先，分析了新能源送出型电网等值电路的弱送端电网在直流闭锁故障下的暂态过电压机理，分析了过电压抑制策略；然后，为实现暂态能量在新能源集群和无功调节设备之间的有效分配，以新能源集群和无功调节设备作为决策变量，以新能源送出型电网无功裕度作为目标函数，建立考虑暂态过电压抑制的新能源送出型电网无功优化模型，并采用约束自适应粒子群算法对优化模型进行求解 ...
李文竹, 寇汉鹏
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The development of lightweight, high‐attenuation, and broadband carbon‐based electromagnetic wave absorbers is hindered by the intrinsic trade‐off between impedance matching and dielectric dissipation. Herein, we report a facile and scalable synthesis of N‐doped lignin‐derived interconnected porous carbon (Nx‐LIPC) via hydrogen‐bond self ...
Bin‐Peng Zhang +7 more
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