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Phage Particles in Ground Arctic Ice
Microbiology, 2019This is the first report on investigation of bacteriophages in ancient Arctic ground ice of various genesis and geological age. Electron microscopy revealed phage particles in all ice samples. Tailed bacteriophages were the dominant morphotype. A correlation was found between abundances of intact microbial cells and phage particles.
N. A. Surgucheva +4 more
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Sea Ice Stresses Near Grounded Obstacles
Offshore Technology Conference, 1979ABSTRACT Stresses were measured in multi-year sea ice near a grounded floe-island. Compressive stresses as high as 250 p.s.i. were observed, in the form of impulses. A second installation in annual sea ice near a grounded pressure ridge showed tensile stress of 100 p.s.i., followed by crack formation. These stresses
W.M. Sackinger, R.D. Nelson
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Geographical Review, 1942
HE tundra in Arctic and sub-Arctic regions' is irregular and rough in detail but relatively featureless in broader aspect. Low, scattered mounds that interrupt the monotony attract immediate attention. Although the mounds differ in size and shape, most of them are a few feet high, many tens of feet in circumference, and gently rounded or slightly ...
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HE tundra in Arctic and sub-Arctic regions' is irregular and rough in detail but relatively featureless in broader aspect. Low, scattered mounds that interrupt the monotony attract immediate attention. Although the mounds differ in size and shape, most of them are a few feet high, many tens of feet in circumference, and gently rounded or slightly ...
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2020
The ice content of permafrost soils has a large impact on processes that occur when permafrost thaws; exposed ground ice is the primary cause of destructive abrupt thaw processes. This chapter presents the origin of common forms of ground ice: segregation ice, ice wedges and larger ground ice bodies.
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The ice content of permafrost soils has a large impact on processes that occur when permafrost thaws; exposed ground ice is the primary cause of destructive abrupt thaw processes. This chapter presents the origin of common forms of ground ice: segregation ice, ice wedges and larger ground ice bodies.
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Aircraft Ground Deicing/Anti-Icing Processes
2021<div class="section abstract"> <div class="htmlview paragraph">This document establishes the minimum requirements for ground-based aircraft deicing/anti-icing methods and procedures to ensure the safe operation of aircraft during icing conditions on the ground. This document does not specify the requirements for particular aircraft models.
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ICE Handbook of Ground Investigation
ICE Handbook of Ground Investigation is a comprehensive practical guide, presented in two volumes, that covers the range of techniques used in conducting thorough and effective ground investigations. It provides comprehensive and up-to-date guidance on the latest technologies, methods and procedures available to establish the properties of the ground ...Peter Reading, Miles Martin
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Aircraft Ground Deicing/Anti-Icing Processes
2019<div class="section abstract"> <div class="htmlview paragraph">This document establishes the minimum requirements for ground based aircraft deicing/anti-icing methods and procedures to ensure the safe operation of aircraft during icing conditions on the ground. This document does not specify the requirements for particular aircraft models.
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