Results 261 to 270 of about 61,471 (312)
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Nonlinear Guided Waves and Their Applications, 2001
We demonstrate experimentally and theoretically (both analytically and numerically) a new type of spatial soliton: a rotating "propeller" soliton. This is a composite soliton made of a rotating dipole component jointly trapped with a bell-shaped component. We observe as much as 239 degrees of rotation over 13 mm of propagation (6.5 diffraction lengths).
T, Carmon +5 more
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We demonstrate experimentally and theoretically (both analytically and numerically) a new type of spatial soliton: a rotating "propeller" soliton. This is a composite soliton made of a rotating dipole component jointly trapped with a bell-shaped component. We observe as much as 239 degrees of rotation over 13 mm of propagation (6.5 diffraction lengths).
T, Carmon +5 more
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Southern Medical Journal, 1976
Water skiing, boat racing, skin and scuba diving, and pleasure boat cruising are increasing in popularity. As a result the incidence of injuries secondary to motor propellers is becoming more frequent. In a ten-year period from 1963 to 1973, I collected a total of nine cases.
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Water skiing, boat racing, skin and scuba diving, and pleasure boat cruising are increasing in popularity. As a result the incidence of injuries secondary to motor propellers is becoming more frequent. In a ten-year period from 1963 to 1973, I collected a total of nine cases.
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Scientific American, 2014
The article discusses research into turboprops being driven by a demand for shorter, cheaper airplane flights. Topics include a brief historical overview of the debut of propeller-driven aircraft, the fuel efficiency of turboprops, compared to turbofans, and engineers at General Electric Aviation's Dowty Propellers, who are using computational fluid ...
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The article discusses research into turboprops being driven by a demand for shorter, cheaper airplane flights. Topics include a brief historical overview of the debut of propeller-driven aircraft, the fuel efficiency of turboprops, compared to turbofans, and engineers at General Electric Aviation's Dowty Propellers, who are using computational fluid ...
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1974
This report summarizes the available information on the toxicity of 15 propellants used in aerosols. After reviewing the results derived from various animal species, the following classifications are proposed: Low-pressure propellants of high toxicity: trichlorofluoromethane (FC 11), dichloromonofluoromethane (FC 21), trichlorotrifluoroethane (FC
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This report summarizes the available information on the toxicity of 15 propellants used in aerosols. After reviewing the results derived from various animal species, the following classifications are proposed: Low-pressure propellants of high toxicity: trichlorofluoromethane (FC 11), dichloromonofluoromethane (FC 21), trichlorotrifluoroethane (FC
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Journal of Aerosol Medicine, 1995
Chlorofluorocarbon (CFC) propellants used in metered dose inhalers (MDI) must be replaced under the terms of the Montreal Protocol. Following a review of the available data, HFA134a (1,1,1,2 tetrafluoroethane) was selected as a potential alternative propellant.
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Chlorofluorocarbon (CFC) propellants used in metered dose inhalers (MDI) must be replaced under the terms of the Montreal Protocol. Following a review of the available data, HFA134a (1,1,1,2 tetrafluoroethane) was selected as a potential alternative propellant.
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Aeronautical journal (London, England : 1897), 1914
The material for this paper was collected for a written communication to the Research Committee for publication in The Aëronautical Journal, in the form of a brief annotated account of the work of a number of experimenters on the performance of the screw propeller in air and water; but, at the request of the Council, a month ago, the article has been ...
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The material for this paper was collected for a written communication to the Research Committee for publication in The Aëronautical Journal, in the form of a brief annotated account of the work of a number of experimenters on the performance of the screw propeller in air and water; but, at the request of the Council, a month ago, the article has been ...
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2020
Abstract Weaving together stories from sources as wide-ranging as classical literature, social and cognitive psychology, philosophy, art, and video games, Propelled: How Boredom, Frustration, and Anticipation Lead Us to the Good Life makes a lively case for the value of discontent in our lives.
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Abstract Weaving together stories from sources as wide-ranging as classical literature, social and cognitive psychology, philosophy, art, and video games, Propelled: How Boredom, Frustration, and Anticipation Lead Us to the Good Life makes a lively case for the value of discontent in our lives.
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Propeller and Propeller-in-Wing Thrust Vectoring
AIAA Scitech 2021 Forum, 2021Grace G. Culpepper +2 more
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Propeller Induced Velocities in Ducted Propellers
SNAME Propellers '84 Symposium, 1984This paper presents the results of flow measurements in the nozzle opening of ducted propellers operating in both open and behind conditions. The open-water test measurements show the propeller induced velocities in nozzle opening differ from the results from conventional propeller measurements.
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Solid Propellant Formulations: A Review of Recent Progress and Utilized Components
Materials, 2021Kinga Lysien +2 more
exaly