Results 301 to 310 of about 72,527 (347)
Some of the next articles are maybe not open access.
2000
Publisher Summary Ships are predominantly equipped with simple screw propellers. Special means of propulsion include nozzled propellers, waterjets, surface-piercing propellers, contra-rotating propellers, azimuthing propellers, and Voith-Schneider propellers.
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Publisher Summary Ships are predominantly equipped with simple screw propellers. Special means of propulsion include nozzled propellers, waterjets, surface-piercing propellers, contra-rotating propellers, azimuthing propellers, and Voith-Schneider propellers.
openaire +3 more sources
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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Influence of propeller characteristics on propeller structural design
2015In previous works, the importance of considering fatigue phenomena has been analysed and a procedure for propeller blades fatigue assessment was outlined. The results obtained by applying the proce-dure allowed underlining the need of a more detailed and direct approach to propeller structural design, which could lead to different blade scantling ...
BERTOGLIO, CHIARA +4 more
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, 2017
This paper presents a comprehensive background and historical review of propellant management devices used throughout space flight history.
J. Hartwig
semanticscholar +1 more source
This paper presents a comprehensive background and historical review of propellant management devices used throughout space flight history.
J. Hartwig
semanticscholar +1 more source
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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Effect of Organic Fluoride on Combustion Agglomerates of Aluminized HTPB Solid Propellant
, 2017Hydroxyl-terminated polybutadiene (HTPB) based propellants containing fixed aluminum content (18 wt %) and different amounts of organic fluoride (OF) additive were studied.
Xuyuan Zhou +4 more
semanticscholar +1 more source
Tetrahedron Letters, 2007
Abstract Center-to-propeller stereocontrol in a family of macrobicyclic, double-propeller shaped tri- λ 5 -triphosphazenes remains constant in the upper tribenzylamine fragment as the size of the pivotal group at the lower tris(phosphane) fragment is gradually increased.
Jose Berna +3 more
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Abstract Center-to-propeller stereocontrol in a family of macrobicyclic, double-propeller shaped tri- λ 5 -triphosphazenes remains constant in the upper tribenzylamine fragment as the size of the pivotal group at the lower tris(phosphane) fragment is gradually increased.
Jose Berna +3 more
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Reliability Assessment of Solid-Propellant Rocket Motors Under Storage and Transportation Loads
, 2017A methodology for the assessment of the service life of solid-propellant rocket motors under random storage and transportation loads is presented.
O. Yılmaz, B. Kuran, G. O. Ozgen
semanticscholar +1 more source
Preparation and Properties of a nRDX-based Propellant
, 2017The incorporation of nano-scaled cyclotrimethylene trinitramine (nRDX) in nitrocellulose (NC)-based propellants poses processing problems when following conventional methods.
Binbin Wang +5 more
semanticscholar +1 more source