Results 51 to 60 of about 47,826 (311)
The role of organic aerosols in homogeneous ice formation
, 2004 Kärcher B, Koop T. The role of organic aerosols in homogeneous ice formation. ATMOSPHERIC CHEMISTRY AND PHYSICS. 2005;5(3):703-714.Recent field observations suggest that the fraction of organic-containing aerosol particles in ice cloud particles is ...
Kärcher, B +5 more
core +1 more source
The anomalous pressure drop behaviour of ice slurries flowing through constrictions [PDF]
, 2008 The effective ‘viscosity’ for ice slurry containing more than say 30 to 40% ice fraction is many orders of magnitude higher than that for water. However, this work suggests that such slurries, when flowing through constrictions, can incur lower pressure ...
Rhys, T. D. L. +3 more
core +1 more source
Proceedings, 2023 Changes in Southern Ocean physics are dynamically linked to westerly winds, ocean currents, and the distribution of Antarctic sea ice in the Southern Hemisphere.
Gagan Mandal, Jia-Yuh Yu, Shih-Yu Lee
doaj +1 more source
Description and validation of the ice-sheet model Yelmo (version 1.0) [PDF]
Geoscientific Model Development, 2020 We describe the physics and features of the ice-sheet model Yelmo, an open-source project intended for collaborative development. Yelmo is a thermomechanical model, solving for the coupled velocity and temperature solutions of an ice sheet simultaneously.
A. Robinson +11 more
doaj +1 more source
Combining visible and infrared radiometry and lidar data to test simulations in clear and ice cloud conditions [PDF]
, 2010 Measurements taken during the 2003 Pacific THORPEX Observing System Test (P-TOST) by the MODIS Airborne Simulator (MAS), the Scanning High-resolution Interferometer Sounder (S-HIS) and the Cloud Physics Lidar (CPL) are compared to simulations performed ...
MAESTRI, TIZIANO +8 more
core +1 more source
pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source
Astronomy & AstrophysicsContext. Despite recent advances in the precision of high-resolution spectrographs, the detection of Earth-like exoplanets is still limited by the effects of stellar activity, which introduce radial velocity variations at the metre-per-second level or ...
Blanco-Pozo Jordi +9 more
doaj +1 more source
Physics-aware machine learning for glacier ice thickness estimation: a case study for Svalbard [PDF]
The CryosphereThe ice thickness of the world's glaciers is mostly unmeasured, and physics-based models to reconstruct ice thickness cannot always deliver accurate estimates.
V. Steidl +4 more
doaj +1 more source
FEBS Letters, EarlyView.The pyruvate generator, which causes activation of respiration by extra‐mitochondrial Ca2+, is also present and functional in rat brainstem mitochondria, as it is in other brain regions. This finding is confirmed by experiments with a fully reconstituted malate–aspartate shuttle (MAS).
Grazyna Debska‐Vielhaber +7 more
wiley +1 more source
Ice nucleation under cirrus cloud conditions [PDF]
, 2012 Cirrus are thin upper tropospheric clouds that are composed entirely of ice particles. Due to their extensive coverage of the Earth’s surface, they have a significant impact on the Earth’s radiative balance.
Wilson, Theodore W
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