Results 71 to 80 of about 160,406 (310)

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

Detection of a Squall Line Event by DDW1 Total Lightning Locating System

open access: yes应用气象学报
At present, China's meteorological departments are gradually upgrading their lightning location networks from ADTD (Advanced TOA and Direction) system to DDW1 Total Lightning Location System.
Xu Shulin   +8 more
doaj   +1 more source

Nighttime observations of thunderstorm electrical activity from a high altitude airplane [PDF]

open access: yes, 1984
Nocturnal thunderstorms were observed from above and features of cloud structure and lightning which are not generally visible from the ground are discussed.
Brook, M.   +4 more
core   +2 more sources

Total lightning activity in thunderstorms over Paris [PDF]

open access: yesAtmospheric Research, 2007
A statistical study of two groups of storms that occurred in the Paris area (France) during summer 2000 has been realized. The first group includes 26 high radar reflectivity (HRR) storms with radar reflectivity values exceeding 60 dBZ while the second one includes 19 moderate radar reflectivity (MRR) storms with a maximum radar reflectivity value ...
Boussaton, Marie-Pierre   +2 more
openaire   +2 more sources

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

A Combined IR-GPS Satellite Analysis for Potential Applications in Detecting and Predicting Lightning Activity

open access: yesRemote Sensing, 2020
Continuous estimates of the vertical integrated precipitable water vapor content from the tropospheric delay of the signal received by the antennas of the global positioning system (GPS) are used in this paper, in conjunction with the measurements of the
Leo Pio D’Adderio   +4 more
doaj   +1 more source

The Timing of Cloud-to-Ground Lightning Relative to Total Lightning Activity

open access: yesMonthly Weather Review, 2011
Abstract The first flash produced by a storm usually does not strike ground, but little has been published concerning the time after the first flash before a cloud-to-ground flash occurs, particularly for a variety of climatological regions. To begin addressing this issue, this study analyzed data from very-high-frequency (VHF) lightning
Donald R. MacGorman   +5 more
openaire   +1 more source

Economic Viability of Photovoltaic Systems Providing Frequency Containment Reserve

open access: yesAdvanced 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   +3 more
wiley   +1 more source

Lightning activity in the eastern Mediterranean region [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2005
Twenty days of lightning activity recorded during winter 2002–2003 in the Mediterranean region with significant rain accumulation in Greece were studied on the basis of the measurements of the UK Met Office long‐range VLF sferics Arrival Time Difference (ATD) system and the spaceborne NASA Lightning Imaging Sensor (LIS) sensor onboard the Tropical ...
E. Defer, K. Lagouvardos, V. Kotroni
openaire   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

open access: yesCarbon 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   +4 more
wiley   +1 more source

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