Results 261 to 270 of about 133,268 (309)
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Anatomy of Nanoscale Propulsion
Annual Review of Biophysics, 2015Nature supports multifaceted forms of life. Despite the variety and complexity of these forms, motility remains the epicenter of life. The applicable laws of physics change upon going from macroscales to microscales and nanoscales, which are characterized by low Reynolds number (Re).
Vinita, Yadav +3 more
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Proceedings of the 3rd International Conference on Vision, Image and Signal Processing, 2019
This paper describes briefly the Chemical Propulsion System (PS) which has been used in the Korean bi-propellant Geostationary Satellite. The new commonly developed platform (GK2) went after design through acceptance test and final check out at launch site in Kourou. All this steps has been performed in a very close partnership between Korean Aerospace
Andreas Steinbeck +2 more
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This paper describes briefly the Chemical Propulsion System (PS) which has been used in the Korean bi-propellant Geostationary Satellite. The new commonly developed platform (GK2) went after design through acceptance test and final check out at launch site in Kourou. All this steps has been performed in a very close partnership between Korean Aerospace
Andreas Steinbeck +2 more
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Applied Optics, 2014
To produce supersonic laser propulsion, a new technique based on the interaction of a laser-ablated jet with supersonic gas flow in a nozzle is proposed. It is shown that such parameters of the jet, such as gas-plasma pressure and temperature in the ablation region as well as the mass consumption rate of the ablated solid propellant, are characteristic
Yurii, Rezunkov, Alexander, Schmidt
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To produce supersonic laser propulsion, a new technique based on the interaction of a laser-ablated jet with supersonic gas flow in a nozzle is proposed. It is shown that such parameters of the jet, such as gas-plasma pressure and temperature in the ablation region as well as the mass consumption rate of the ablated solid propellant, are characteristic
Yurii, Rezunkov, Alexander, Schmidt
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Journal of Experimental Biology, 1967
ABSTRACT Equations are derived for the propulsive velocities and power dissipation of undulating hispid flagella. The observed rates of movement of water around the flagella of two chrysomonad flagellates and the translational speed of Ochromonas malhamensis agree closely with values calculated if it is assumed that the flagellar ...
M E, Holwill, M A, Sleigh
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ABSTRACT Equations are derived for the propulsive velocities and power dissipation of undulating hispid flagella. The observed rates of movement of water around the flagella of two chrysomonad flagellates and the translational speed of Ochromonas malhamensis agree closely with values calculated if it is assumed that the flagellar ...
M E, Holwill, M A, Sleigh
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32nd Joint Propulsion Conference and Exhibit, 1996
ANDRIANI, ROBERTO +2 more
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ANDRIANI, ROBERTO +2 more
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The Journal of the Royal Aeronautical Society, 1956
Few aeronautical engineers would disagree that the development of new propulsive systems has been the main influence responsible for the achievement of supersonic flight. This is not the same thing as claiming that sustained flight at these speeds, over fairly long ranges and with reasonable economy, would ever be possible without correspondingly large
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Few aeronautical engineers would disagree that the development of new propulsive systems has been the main influence responsible for the achievement of supersonic flight. This is not the same thing as claiming that sustained flight at these speeds, over fairly long ranges and with reasonable economy, would ever be possible without correspondingly large
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Hybrid power and propulsion systems for ships: Current status and future challenges
Renewable and Sustainable Energy Reviews, 2022Ömer Berkehan Inal +2 more
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Review of micro propulsion technology for space gravitational waves detection
Acta Astronautica, 2022Hui Liu, Ming Zeng, Daren Yu
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