Results 1 to 10 of about 172,545 (337)

Symptomatic Apical Periodontitis of the Mandibular First Molar with the Accessory Canal in the Furcation Area Mimicking Furcation Perforation

open access: yesCase Reports in Dentistry, 2022
Apical periodontitis frequently presents as a chronic disease. To arrive at a true diagnosis, in addition to the clinical examination, it is mandatory to undertake radiographic examinations and evaluate the clinical presentation.
Alexei Bolyachin   +4 more
doaj   +1 more source

Variability and Formation Mechanism of Polynyas in Eastern Prydz Bay, Antarctica

open access: yesRemote Sensing, 2021
Based on satellite remote sensing, several polynyas have been found in Prydz Bay, East Antarctica. Compared with the Mackenzie Bay Polynya, the only polynya in the west, the polynyas in eastern Prydz Bay have a larger area and higher ice production, but ...
Saisai Hou, Jiuxin Shi
doaj   +1 more source

Antarctic petrels ‘on the ice rocks’: wintering strategy of an Antarctic seabird [PDF]

open access: yesRoyal Society Open Science, 2020
There is a paucity of information on the foraging ecology, especially individual use of sea-ice features and icebergs, over the non-breeding season in many seabird species. Using geolocators and stable isotopes, we defined the movements, distribution and
K. Delord   +7 more
doaj   +1 more source

Singing Icebergs [PDF]

open access: yesScience, 2005
Sustained harmonic tremor signals were recorded by the seismographs of the German Neumayer Base seismological network in western Dronning Maud Land, Antarctica. These tremor episodes, lasting up to 16 hours, were recorded up to 820 kilometers from the source. Their spectra show narrow peaks with fundamental frequencies ranging from 0.5 to 6 hertz, more
Müller, Christina   +3 more
openaire   +3 more sources

Review of Ice Characteristics in Ship-Iceberg Collisions

open access: yes한국해양공학회지, 2021
The International Ice Patrol (IIP) was established after the Titanic collided with an iceberg off the eastern coast of Canada in 1912 and sank, killing more than 1,500 people.
Tak-Kee Lee
doaj   +1 more source

Numerical simulation analysis of the collision between ship side and small iceberg

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesCollisions between a side structure of ship and a small iceberg are investigated.Methodsa nonlinear finite element model is established, involving the penalty function method and arbitrary Lagrangian-Eulerian (ALE) algorithm.
Biye YANG   +4 more
doaj   +1 more source

On Characteristics of Ice Ridges and Icebergs for Design of Ship Hulls in Polar Regions Based on Environmental Design Contours

open access: yesApplied Sciences, 2021
Ice ridges and icebergs generally pose a major threat to both ships and offshore facilities that operate in Polar regions. In many cases these features will govern the structural design loads associated with the Ultimate Limit State (ULS) and the ...
Bernt J. Leira   +2 more
doaj   +1 more source

Automated ArcticDEM iceberg detection tool: insights into area and volume distributions, and their potential application to satellite imagery and modelling of glacier–iceberg–ocean systems [PDF]

open access: yesThe Cryosphere, 2023
Iceberg calving accounts for up to half of mass loss from the Greenland Ice Sheet (GrIS), with their size distributions providing insights into glacier calving dynamics and impacting fjord environments through their melting and subsequent freshwater ...
C. J. Shiggins, J. M. Lea, S. Brough
doaj   +1 more source

Wind-driven upwelling around grounded tabular icebergs [PDF]

open access: yes, 2016
Funding was provided by NSF Polar Programs - Grant Number: ARC-1304137.Temperature and salinity data collected around grounded tabular icebergs in Baffin Bay in 2011, 2012 and 2013 indicate wind-induced upwelling at certain locations around the icebergs.
Abrahamsen, Povl   +10 more
core   +3 more sources

Multi-Agent Simulation of Iceberg Mass Loss during Its Energy-Efficient Towing for Freshwater Supply

open access: yesEnergies, 2021
The problem of freshwater deficit in the last decade has progressed, not only in Africa or Asia, but also in European countries. One of the possible solutions is to obtain freshwater from drifting icebergs.
Sergiy Filin   +2 more
doaj   +1 more source

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