Results 21 to 30 of about 14,219 (119)
对金属氧化物避雷器的过电压通流能力和热稳定性能进行了实验研究。已经发现,对不同峰值和持续时间的操作过电压和暂态过电压的击穿能量大致相同。对84千伏瓷套式避雷器试样的散热能力进行了试验,发现其散热能力小于小型模拟元件的散热能力,其数值关系在前所发表的文章中已讨论过。根据这些试验数据发现,运行电压高低的极限不是由通流能力决定,而是由热稳定性能所决定。
佐藤, 张雨时
doaj
ABSTRACT The development of highly efficient and stable nonprecious metal electrocatalysts for the acidic oxygen evolution reaction (OER) is crucial to advance proton exchange membrane (PEM) water electrolysis. In this work, a dual synergistic strategy was proposed by constructing a Ce‐modified MnO2/MnO heterostructure.
Chuanbin Li +7 more
wiley +1 more source
ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
ABSTRACT Biomass‐derived quinones are promising green and sustainable cathode materials for sodium‐ion batteries (SIBs), yet their practical application is hindered by poor cycling stability due to dissolution in conventional electrolytes. Herein, we demonstrate that sodiumation is an effective strategy to enhance both rate capability and cycling ...
Xinyue Zhu +4 more
wiley +1 more source
为了明确SF6气体绝缘金属封闭开关设备(以下简称GIS)外壳通流能力对母线法兰结构设计的要求,综合分析了影响外壳法兰设计的各种因素,着重分析了外壳法兰的密封结构和GIS设备外壳法兰的通流能力之间的关系。通过试验验证和计算分析,论证了合理的外壳法兰设计结构可以在满足壳密封性能的同时,利用法兰连接面保证GIS对通流性能的要求。
南方
doaj
ABSTRACT The realization of bifunctional perovskite devices integrating photovoltaic (PV) and light‐emitting diode (LED) capabilities requires precisely controlled grain architectures to facilitate dual carrier transport pathways. In this work, sulfaguanidine (SG) molecules were introduced into the perovskite solution to reconstruct the crystallization
Jiong Li +7 more
wiley +1 more source
ABSTRACT Aqueous vanadium dioxide (VO2)‐based smart thermal insulation coatings represent a viable strategy to decrease building energy consumption and advance sustainable development goals. However, the inherent instability and limited compatibility with polymer matrices of VO2 hinder its widespread application.
Xiuxian Zhao +9 more
wiley +1 more source
Tailoring Spin States of CuNNi3 via d‐d Orbital Coupling for High Performance Water Splitting
ABSTRACT Against the backdrop of escalating global energy crises and environmental challenges, the development of clean and sustainable hydrogen energy has become increasingly imperative. Hydrogen production via water electrolysis is widely regarded as a promising approach due to its green and efficient characteristics.
Weigao Zhong +6 more
wiley +1 more source
输电线路的输送能力将直接影响发电和用电水平,因此如何提高线路载流能力得到广泛关注。由于线路沿途进行日照条件测量成本高且可靠性难以保障,使得动态计算输电线载流能力的方法难以得到广泛应用。笔者提出通过利用在线温度信息和线路实时电流信息,辨识日照参数,获取线路载流量计算所需的日照参数,以实现线路实时载流能力的评估。仿真分析证明,该方法能有效地在线预测输电线最大载流能力,为充分利用线路输电能力、保障可靠供电提供参考依据。
熊小伏, 丁咏竹, 谢嵩
doaj
ABSTRACT This study adapts the Multiple Streams Framework (MSF) to explore why COVID‐19 vaccine mandates were applied at sectoral and subnational levels in Vietnam while the central government maintained that vaccination was voluntary. Document analysis reveals that these mandates arose from the effective coupling of the three streams—problem, policy ...
Hang Duong, Katie Attwell
wiley +1 more source

