Results 61 to 70 of about 146,862 (339)

Differences in Optical Two-dimensional Morphological Characteristics of Downward Lightning Channels with Different Polarities

应用气象学报
Proportions of positive and negative cloud-to-ground (CG) natural lightning are approximately 10% and 90%, respectively. Although the frequency of positive CG lightning is relatively low, these events are more likely to produce high current peaks ...
Mei Ji, Lü Weitao, Qi Qi, Xu Weiqun, Wu Bin, Ma Ying, Liu Hengyi, Chen Lüwen, Zhang Yang   +8 more
doaj   +1 more source

Atomic Scale Ordering of Liquid Water at a Dynamic Pt(111) Interface Under Electrochemical Conditions Imaged by Electron Holography

Advanced Energy Materials, EarlyView.
High resolution electron holography was used to image the projected electric potential of ordered water layers at the interface to a platinum (111) electrode. The observed reorganization of the water layers upon applying external potentials suggests that the electric potential drop of the electric double layer is mainly carried by the polarization ...
Jonas Lindner, Ulrich Ross, Tobias Meyer, Sung Sakong, Axel Gross, Michael Seibt, Christian Jooss   +6 more
wiley   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Economic Viability of Photovoltaic Systems Providing Frequency Containment Reserve

Advanced Energy and Sustainability Research, EarlyView.
This article investigates the feasibility of photovoltaic (PV) systems providing frequency containment reserve (FCR) in the Netherlands. The economic analysis demonstrates that a PV plant can profitably participate in FCR without battery storage by maintaining an active power reserve.
Emil Petkovski, Mari S. Bogen, Theo Bosma, Marcel Eijgelaar   +3 more
wiley   +1 more source

Lightning Initiation Processes Imaged With Very High Frequency Broadband Interferometry

Journal of Geophysical Research: Atmospheres, 2019
Recent measurements of narrow bipolar lightning events (NBEs) by very high frequency (VHF) radio interferometer have resolved the dynamic development of this special lightning process with submicrosecond time resolution, and showed that the fast positive
F. Lyu, S. Cummer, Zilong Qin, Ming-li Chen   +3 more
semanticscholar   +1 more source

Designing Memristive Materials for Artificial Dynamic Intelligence

Advanced Intelligent Discovery, EarlyView.
Key characteristics required of memristors for realizing next‐generation computing, along with modeling approaches employed to analyze their underlying mechanisms. These modeling techniques span from the atomic scale to the array scale and cover temporal scales ranging from picoseconds to microseconds. Hardware architectures inspired by neural networks
Youngmin Kim, Ho Won Jang
wiley   +1 more source

New Insights Into Changes in the DNA Methylation Pattern of the SHOX Gene in Patients With Léri‐Weill Dyschondrosteosis

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT SHOX gene haploinsufficiency is associated with Léri‐Weill dyschondrosteosis (LWD) or idiopathic short stature (ISS) and could be caused by the structural and point mutations in the coding region and by the deletions in SHOX gene regulatory sequences. The role of the duplications in regulatory sequences is ambivalent.
Valeriia Kopytko, Katerina Hirschfeldova, Pavlina Capkova, Roman Solc   +3 more
wiley   +1 more source

Optimizing Grid With Dynamic Line Rating of Conductors: A Comprehensive Review

IEEE Access
As the world is pledged towards net zero carbon by 2050, the need for clean and efficient energy transitions is more critical than ever. Optimizing the power grid transfer capacity is crucial for maintaining grid stability and reliability.
Nurul Husniyah Abas, Mohd Zainal Abidin Ab Kadir, Norhafiz Azis, Jasronita Jasni, Nur Fadilah Ab Aziz, Zmnako Mohammed Khurshid   +5 more
doaj   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

Carbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang, Chunxu Xue, Yutong Chen, Yujie Qiang, Seeram Ramakrishna   +4 more
wiley   +1 more source

Nano‐kaolin enhances the mechanical, electrical, and thermal properties of cellulose insulating paper

High Voltage
There is an extremely urgent demand in the realm of power equipment, including power transformers, motors, and cables. Specifically, there is a pressing need for cellulose‐based composite insulating paper that can exhibit high thermal conductivity ...
Wenchang Wei, Yuye Zhang, Xuanhao Fu, Shengzhe Yuan, Chenxi Shi, Zhicheng Su, Shihao Luo, Haiqiang Chen, Junwei Zha, Yiyi Zhang   +9 more
doaj   +1 more source