Results 1 to 10 of about 2,269,270 (289)

Increasing contribution of grain boundary compliance to polycrystalline ice elasticity as temperature increases

open access: yesJournal of Glaciology, 2018
Measured elastic stiffnesses of ice polycrystals decrease with increasing temperature due to a decrease in grain boundary stiffness with increasing temperature.
COLIN M. SAYERS
doaj   +1 more source

The concept of spin ice graphs and a field theory for their charges

open access: yesAIP Advances, 2020
Originally detected in rare earth pyrochlores, spin ice physics is now being artificially extended to a variety of geometries that control collective behavior and exotic properties, making graph theory their proper framework.
Cristiano Nisoli
doaj   +1 more source

The key physics of ice premelting

open access: yesThe Journal of Chemical Physics
A disordered quasi-liquid layer of water is thought to cover the ice surface, but many issues, such as its onset temperature, its thickness, or its actual relation to bulk liquid water, have been a matter of unsettled controversy for more than a century.
openaire   +3 more sources

An enthalpy-based model for the physics of ice-crystal icing

open access: yesJournal of Fluid Mechanics
Ice-crystal icing (ICI) in aircraft engines is a major threat to flight safety. Due to the complex thermodynamic and phase-change conditions involved in ICI, rigorous modelling of the accretion process remains limited. The present study proposes a novel modelling approach based on the physically observed mixed-phase nature of the accretion layers.
Timothy Peters   +3 more
openaire   +4 more sources

Premelting increases the rate of regelation by an order of magnitude

open access: yesJournal of Glaciology, 2019
Glacier sliding over small obstacles relies on melting on their upstream sides and refreezing downstream. Previous treatments have appealed to ‘pressure melting’ as the cause of the spatial variations in melting temperature that drive this regelation ...
ALAN W. REMPEL, COLIN R. MEYER
doaj   +1 more source

II. On some physical properties of ice [PDF]

open access: yesProceedings of the Royal Society of London
Abstract In this paper the following points are considered:-— 1. The effects of radiant heat upon ice. 2. The effects of conducted heat upon ice. 3. The air- and water-cavities of ice. 4. The effects of pressure upon ice.
openaire   +1 more source

Simulating lake ice phenology using a coupled atmosphere–lake model at Nam Co, a typical deep alpine lake on the Tibetan Plateau [PDF]

open access: yesThe Cryosphere
Simulating the ice phenology of deep alpine lakes is important and challenging in coupled atmosphere–lake models. In this study, the Weather Research and Forecasting (WRF) model, coupled with two lake models, the freshwater lake (WRF–FLake) model and the
X. Zhou, B. Wang, X. Ma, Z. La, K. Yang
doaj   +1 more source

The physics of icing

open access: yes
Ice accretion is a complex phenomenon with significant implications in natural and engineering contexts, affecting aviation safety, energy infrastructure, and transportation. This chapter explores the physical mechanisms underlying ice formation, starting with the fundamental processes that drive accretion.
Roisman, Ilia V   +4 more
openaire   +2 more sources

An East Antarctic, sub-annual resolution water isotope record from the Mount Brown South Ice core

open access: yesScientific Data
We report high resolution measurements of the stable water isotope ratios (δ 18O, δD) from the Mount Brown South ice core (MBS, 69.11° S 86.31° E). The record covers the period 873 - 2009 CE with sub-annual temporal resolution.
Vasileios Gkinis   +11 more
doaj   +1 more source

Solar Corona Structures Detection and Segmentation Using Deep Neural Networks: A Survey

open access: yesIEEE Access
Image segmentation and detection of solar corona structures are a critical part of space weather applications. In recent years, deep learning-based techniques have proven to be effective for various automatic solar image processing tasks.
Peter Butka   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy