Results 301 to 310 of about 565,318 (348)

Ice Behaviour under Load

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1979
ABSTRACT Zaretsky, Yu.K., Chumichev, B.D. and Solomatin, V.I., 1979. Ice behaviour under load. Eng. Geol., 13: 299–309. Ice is a component of frozen grounds that determines their rheological properties. Deformation and failure of ice under load are regarded by the authors as a single process due to the kinetics of defect development in the ...
I.K. Zaretskii, V.I. Solomatin
  +4 more sources

Radical Photochemistry in Oxygen‐Loaded Ices

Angewandte Chemie, 2006
The photochemistry of molecular oxygen and water films is a fundamental and growing field of investigation for which the main interest is a full understanding of the “far-out” chemistry relevant to the new field of astrobiology. Another field of interest concerns the study of oxygen and water radiation chemistry relevant to the medical applications of ...
Lacombe, S., Bournel, F., Laffon, C., Parent., Ph.   +3 more
openaire   +3 more sources

Ice Loads on Azimuthing Podded Propulsors

23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 3, 2004
The paper describes the experimental setup and presents some of the results obtained. The experimental system is designed and built to measure the loads on the blade, on the propeller shaft bearings, on the shaft, and on the whole propulsion unit (global loads). Experiments have been conducted at various headings form 0° to 180°, thrust directions (aft
Akinturk, A., Jones, S. J., Duffy, D., Rowell, B.   +3 more
openaire   +2 more sources

Assessment of Ship Ice Loads in Pack Ice

SNAME 9th International Conference and Exhibition on Performance of Ships and Structures in Ice, 2010
World trade and exploration for natural gas/oil in the Arctic/Subarctic has greatly stimulated the development of shipping in arctic regions. More and larger commercial vessels have or will operate in the harsh environments. This stretches the validity of the existing ship design rules and raises concerns. To deal with this challenge, owners, designers,
Claude Daley, Jiancheng Liu
openaire   +1 more source

Peak Ice Loads on a Lifeboat in Pack Ice Conditions

OTC Arctic Technology Conference, 2014
Abstract Field testing of a modified Totally Enclosed Motor Propelled Survival Craft (TEMPSC) was conducted in March 2013 in managed level ice conditions. This testing was part of a multi-year trials program, conducted by the National Research Council (NRC), which aims to investigate design considerations for a ...
Kennedy, Allison, Simões Ré, António, Veitch, Brian   +2 more
openaire   +1 more source

Ice Sheet Loads on Marina Piles

Journal of the Waterway, Port, Coastal and Ocean Division, 1978
Two marina piles were instrumented with steel sleeves. The steel sleeves were fixed rigidly to the top of the piles. The bottoms of the sleeves were free to freeze into the ice sheet. Two transducers were placed on each sleeve above the water level to measure the vertically acting tension and compression forces imposed on the pile by the ice sheet ...
openaire   +1 more source

Static ice loads on dams

Canadian Journal of Civil Engineering, 2003
A 9 year field program was undertaken from 1991–1992 to 1999–2000 to (i) measure the loads in the ice sheet near a dam, (ii) measure the load distribution between a gate and a pier, and (iii) compare the loads on wooden and steel stoplogs. Parallel work was conducted to develop analytical predictors for ice loads. Much progress has been made.
G Comfort, Y Gong, S Singh, R Abdelnour
openaire   +1 more source

Propeller ice load models

1996
Models for calculating the loads that a marine screw propeller experiences during ice propeller interaction are developed. The interaction process and various contact geometry and interactions types are described. Some laboratory and full-scale experiments are briefly presented. The interaction process is described with a simulation model.
Koskinen, Pekka, Jussila, Matti, Soininen, Harri   +2 more
openaire   +3 more sources

New NESC Extreme Ice Loading

Practice Periodical on Structural Design and Construction, 2009
This paper deals with the effects of the National Electrical Safety Code (NESC)-2007 extreme ice with concurrent wind loading conditions, a new loading condition for the design of electric utility structures, hardware, and conductors. This paper provides answers to some of the questions that may be in the minds of utility engineers involved in the ...
Mehran Keshavarzian, Charles H. Priebe
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Moving loads on sea ice

Polar Record, 1987
ABSTRACTA load moving on sea ice, whether the weight of a vehicle or the pressure exerted by a low-flying aircraft, produces a deflection which can in extreme cases cause ice failure. The magnitude and shape of the deflection profile depends on the weight and speed of the vehicle) and also the the ice thickness and properties, with flexuralgraviry ...
V. A. Squire, P. J. Langhorne, W. H. Robinson, A. J. Heine, T. G. Haskell   +4 more
openaire   +1 more source