Results 11 to 20 of about 2,519 (124)

Wave erosion, frontal bending, and calving at Ross Ice Shelf [PDF]

open access: yesThe Cryosphere
Ice shelf calving constitutes roughly half of the total mass loss from the Antarctic ice sheet. Although much attention is paid to calving of giant tabular icebergs, these events are relatively rare.
N. B. Sartore   +4 more
doaj   +1 more source

BERING SEA: 2018 AS THE EXTREME LOW-ICE AND WARM YEA

open access: yesИзвестия ТИНРО, 2019
Phenomenon of anomalous oceanographic conditions in the Bering Sea in 2018 is considered, with heightened air and water temperature and very low ice cover, as well as its consequences for the water structure, circulation, and chemical properties.
E. O. Basyuk, Yu. I. Zuenko
doaj   +1 more source

Deflection of broken ice caused by an external load moving along a channel

open access: yesJournal of Physics: Conference Series, 2020
Abstract The unsteady problem of a load moving along a channel covered with broken ice is considered. Deflection of the broken ice is described by the equation of flotating liquid. The channel has a rectangular cross-section. The fluid in the channel is inviscid and incompressible.
K N Zavyalova   +2 more
openaire   +1 more source

Flight Control Design for a Tailless Aircraft Using Eigenstructure Assignment

open access: yesInternational Journal of Aerospace Engineering, 2011
We apply eigenstructure assignment to the design of a flight control system for a wind tunnel model of a tailless aircraft. The aircraft, known as the innovative control effectors (ICEs) aircraft, has unconventional control surfaces plus pitch and yaw ...
Clara Nieto-Wire, Kenneth Sobel
doaj   +1 more source

Dipole Oscillations along Principal Coordinates in a Frozen Channel in the Context of Symmetric Linear Thickness of Porous Ice

open access: yesJournal of Marine Science and Engineering
The problem of periodic oscillations of a dipole, specifically its strength, along the principal axes in a three-dimensional frozen channel is considered.
Konstantin Shishmarev   +3 more
doaj   +1 more source

Motion of Submerged Body in a Frozen Channel with Compressed Porous Ice

open access: yesApplied Sciences
The problem of submerged body motion in a frozen channel is considered. The fluid in the channel is assumed to be inviscid and incompressible. Fluid flow is the potential. The ice cover has non-uniform compression along the principal coordinates.
Tatyana Sibiryakova   +3 more
doaj   +1 more source

Body Motion Under an Ice Cover in the Presence and Absence of Ocean Waves

open access: yesJournal of Marine Science and Engineering
This study investigates the unsteady motion of a slender body in a fluid beneath an ice cover, both in the presence and absence of the ocean waves propagating through the ice–water system, using the Fourier and Laplace integral transforms.
Alexandra Pogorelova
doaj   +1 more source

Simulation of the deflection of the ice cover

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
Abstract The paper proposes a mathematical model describing behavior of ice cover under loading. Not taking into account the chemical characteristics, and considering it a solid continuous medium on an elastic base, the role of which is played by water, to simulate the deflection of the ice cover under loading, it is possible to use the ...
openaire   +1 more source

Pulsed ion deflection to overcome detector saturation in cryogenic ice sampling

open access: yesReview of Scientific Instruments
In 2014, we introduced a new experimental approach to study the UV photo-processing of cryogenic ices of astrophysical interest using laser ablation in a combination of ionization and time-of-flight mass spectrometry (ToF-MS). The setup, Mass Analytical Tool to Research Interstellar ICES, allowed us to detect newly formed species at low abundances ...
P. Samarth   +4 more
openaire   +3 more sources

Simplified formula for stationary creep deflection of ice dome

open access: yesJournal of the Japanese Society of Snow and Ice, 2007
既往のスパン10mm~30m級アイスドームのフィールド実験におけるクリープ変形過程を検討し,崩壊までの変形-時間曲線は大略,時間の経過に対して,I変位がほぼ直線的に増大する区間,即ち定常的クリープ過程と,IIその後から崩壊までの変位が加速的に増大する区間,即ち加速的クリープ過程の二つの過程から成ることを示した.このうち,本論文では定常的区間におけるクリープ変形の算定式を提案した.算定式の誘導は,(1)氷をニュートン粘性体と仮定しさらにクリープ材料の不変量理論とシェルの膜理論を適用して,球形アイスドームの鉛直変位式を導き,(2)その変位式において未定パラメータである氷の粘性係数を既往の10m~30m級アイスドームのフィールド実験で得られたクリープ変位測定値を用いて評価するという方法によった.その結果 ...
openaire   +2 more sources

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