Results 31 to 40 of about 199,393 (317)
IC engine and environment [PDF]
Ecological trends and movements in the modern world grow stronger and more active, due to a real danger of Earth pollution. One of the main sources of pollution are 1C engines and their influence on environment is significant. However, conventional combustion engines still are and will be dominant powering systems for numerous future applications.
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Calculating the heat transfer rate of the engine is very difficult due to the complex geometry design of the engine and the periodic flow of air and fuel during engine operation for full cycles. Various theories hypothesize that about 25% of the energy contained in the fuel is converted into useful work and the remaining 75% is released into the ...
Sourabh Kumar, Mr. Rajesh Soni
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The anomalous pressure drop behaviour of ice slurries flowing through constrictions [PDF]
The effective ‘viscosity’ for ice slurry containing more than say 30 to 40% ice fraction is many orders of magnitude higher than that for water. However, this work suggests that such slurries, when flowing through constrictions, can incur lower pressure ...
Rhys, T. D. L. +3 more
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The contribution of wood burning and other pollution sources to wintertime organic aerosol levels in two Greek cities [PDF]
The composition of fine particulate matter (PM) in two major Greek cities (Athens and Patras) was measured during two wintertime campaigns, one conducted in 2013 and the other in 2012.
K. Florou +8 more
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Traditional routing protocols such as OSPF rely on static metrics, failing to account for real-time link utilization. This static approach often directs traffic to congested bottlenecks while redundant paths remain idle, leading to increased latency ...
Erika A. Katonova +4 more
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Model-scale tests on the ice-structure interaction process in shallow water
A series of model-scale experiments on the ice loading process against a wide, inclined structure in shallow water was conducted in the Aalto Ice Tank. Experiments with three different ice strengths were performed. Based on the results of the experiments,
Lemström, Ida +3 more
core
Cyclic strengthening of lake ice
Further to systematic experiments on the flexural strength of laboratory-grown, fresh water ice loaded cyclically, this paper describes results from new experiments of the same kind on lake ice harvested in Svalbard. The experiments were conducted at −12
Andrii Murdza +3 more
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Exploring beneath the PIG Ice Shelf with the Autosub3 AUV [PDF]
On 31st January 2009, two numbers: “range and bearing” flashing up on a laptop screen, indicated that Autosub3 had returned from its last mission beneath the Pine Island Glacier (PIG) Ice Shelf in the Western Antarctic.
Furlong, Maaten E +12 more
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Air reverse circulation at the hole bottom in ice-core drilling
Ice-core drilling to depths of 200–300 m is an important part of research studies concerned with paleoclimate reconstruction and anthropogenic climate change. However, conventional drilling methods face difficulties due to firn permeability.
ZHENGYI HU +7 more
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Engineering Properties of Fresh-Water Ice [PDF]
AbstractThe principal engineering problems requiring knowledge concerning the properties of ice are prediction of the maximum force that ice might exert on a structure and determination of the load that can be placed safely on an ice cover. The properties of ice relevant to these problems are discussed.
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