Results 51 to 60 of about 36,964 (261)

Hydrogen Fuel Cell Technologies for Decarbonization: Opportunities, Challenges, and Strategic Pathways—A Comprehensive Review

Energy Science &Engineering, EarlyView.
ABSTRACT Hydrogen (H2) fuel cells are increasingly recognized as a cornerstone technology in the global transition toward clean energy due to their high efficiency and zero‐emission characteristics. This review synthesizes recent progress, challenges, and strategic pathways for the deployment of H2 fuel cells across the transportation, power generation,
Yash Sachin Gupta, Aarav Sachin Gupta, Rajkumar Sivanraju, K. R. Padmavathi, Ashok Kumar R., Prajith Prabakar   +5 more
wiley   +1 more source

Three-dimensional tomographic reconstruction of atmospheric gravity waves in the mesosphere and lower thermosphere (MLT) [PDF]

Atmospheric Measurement Techniques, 2018
Gravity waves (GWs) have been intensively studied over recent decades because of their dominant role in the dynamics of the mesosphere and lower thermosphere (MLT).
R. Song, R. Song, M. Kaufmann, M. Ern, J. Ungermann, G. Liu, M. Riese, M. Riese   +7 more
doaj   +1 more source

Recent Developments in Sustainable Composites for Printed Circuit Boards (PCBs): A Review

Macromolecular Materials and Engineering, EarlyView.
This review presents the potential of using natural plant fibers and biodegradable polymers as sustainable printed circuit boards (PCBs). This review provides future directions in innovation and sustainable PCBs development. Bio‐composites PCBs are both environmentally friendly and sustainable due to the natural fibres they contain.
Erdem Selver, Ayca Dogrul Selver, Angela Daniela La Rosa, Abu Saifullah, Zhongyi Zhang, Stephen Driver, Jack Herring, Hom Nath Dhakal   +7 more
wiley   +1 more source

Moist bias in the Pacific upper troposphere and lower stratosphere (UTLS) in climate models affects regional circulation patterns [PDF]

Atmospheric Chemistry and Physics
Water vapour in the upper troposphere and lower stratosphere (UTLS) is a key radiative agent and a crucial factor in the Earth's climate system. Here, we investigate a common regional moist bias in the Pacific UTLS during Northern Hemisphere summer in ...
F. Ploeger, F. Ploeger, T. Birner, E. Charlesworth, P. Konopka, R. Müller   +5 more
doaj   +1 more source

Thermal Dynamic Model and Thermal Characteristics of Airships Considering Skin Transmittance

Shanghai Jiaotong Daxue xuebao, 2021
Taking stratospheric airship as the research object, considering the transmission characteristics of the airship surface and the absorption rate and emissivity of the inner filling gas to radiation, the thermodynamic equations of the airship surface skin
CHENG Chen, WANG Xiaoliang
doaj   +1 more source

The impact of Arctic sea‐ice loss on winter weather in the British Isles

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Arctic sea‐ice loss shifts the North Atlantic jet and storm track equatorward, and results in a more negative North Atlantic Oscillation and more positive East Atlantic and Scandinavian patterns. Strong extratropical cyclones weaken and become less frequent for the British Isles, but there is model disagreement for precipitation, surface winds, and ...
Stephanie Hay, Ed Blockley, Jennifer L. Catto, Helene Hewitt, Y. T. Eunice Lo, James A. Screen, Doug Smith, Hao Yu   +7 more
wiley   +1 more source

First tomographic observations of gravity waves by the infrared limb imager GLORIA [PDF]

Atmospheric Chemistry and Physics, 2017
Atmospheric gravity waves are a major cause of uncertainty in atmosphere general circulation models. This uncertainty affects regional climate projections and seasonal weather predictions.
I. Krisch, P. Preusse, J. Ungermann, A. Dörnbrack, S. D. Eckermann, M. Ern, F. Friedl-Vallon, M. Kaufmann, H. Oelhaf, M. Rapp, M. Rapp, C. Strube, M. Riese, M. Riese   +13 more
doaj   +1 more source

On the β$$ \beta $$‐effect in the baroclinic instability of a continuously stratified atmosphere

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We solve the quasi‐geostrophic equation numerically to analyze baroclinic instability in a continuously stratified atmosphere. On the β$$ \beta $$‐plane, deviations from classical models alter instability growth rates and modal structures, leading to the emergence of unstable lobes and a stable region at very large wavelengths.
Juan Vázquez Portillo, Antonio Segalini
wiley   +1 more source

Observations of Pole-to-Pole, Stratosphere-to-Ionosphere Connection

Frontiers in Astronomy and Space Sciences, 2022
The behavior of the Earth’s middle atmosphere and ionosphere is governed by multiple processes resulting not only from downward energy transfer from the Sun and magnetosphere but also upward energy transfer from terrestrial weather.
L. P. Goncharenko, V. L. Harvey, V. L. Harvey, C. E. Randall, C. E. Randall, A. J. Coster, S.-R. Zhang, A. Zalizovski, A. Zalizovski, A. Zalizovski, I. Galkin, M. Spraggs   +11 more
doaj   +1 more source

ERA5 deficit in supercooled liquid water cloud radiative forcing at Dome C, Antarctica

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Meteorological reanalyses from ERA5 for December from 1940 to the present have been analysed to assess the logarithmic relationship between liquid water path (LWP, liquid water profile integrated along the vertical) and supercooled liquid water (SLW, liquid water at temperatures less than 0°C) cloud radiative forcing (CRF) over Dome C, Antarctica as ...
Philippe Ricaud
wiley   +1 more source