Results 351 to 360 of about 491,279 (390)
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Journal of the American Chemical Society, 2005
A carbon fiber having a terminal glucose oxidizing microanode and an O2 reducing microcathode is propelled at the water-O2 interface. The electron current in the fiber is accompanied by a flux of hydrated protons that is so fast at the solution-air interface, where the viscous drag is small, that the fiber's velocity is 1 cm s-1.
Nicolas, Mano, Adam, Heller
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A carbon fiber having a terminal glucose oxidizing microanode and an O2 reducing microcathode is propelled at the water-O2 interface. The electron current in the fiber is accompanied by a flux of hydrated protons that is so fast at the solution-air interface, where the viscous drag is small, that the fiber's velocity is 1 cm s-1.
Nicolas, Mano, Adam, Heller
openaire +2 more sources
Aircraft Engineering and Aerospace Technology, 1965 A Theoretical Approach to Assessing the Thermodynamic Process Within the Combustion Chamber of the Propulsive Duct, an Examination of the Potential of the Duct with Special Reference to the Application of Feedback and Spark Discharge Techniques. The type of valve of greatest importance to successful duct design is one which is synchronized to the ...
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Automotive Powertrain Science and Technology, 2020
Arcjet Device that heats a propellant stream by passing a high-current electrical arc through it, before the propellant is expanded through a downstream nozzle.
Allan Bonnick
semanticscholar +1 more source
Arcjet Device that heats a propellant stream by passing a high-current electrical arc through it, before the propellant is expanded through a downstream nozzle.
Allan Bonnick
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Space Nuclear Propulsion for Human Mars Exploration
, 2021Safely transporting humans to and from Mars will require advances in spacecraft propulsion. Advanced nuclear propulsion systems, including Nuclear Thermal Propulsion (NTP) and Nuclear Electric Propulsion (NEP), have the potential to substantially reduce ...
Bobby Braun
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Making the Case for Switched Reluctance Motors for Propulsion Applications
IEEE Transactions on Vehicular Technology, 2020This paper makes the case that Switched Reluctance Motor (SRM) is an exceptionally attractive technology to respond to the increasing demand in propulsion applications for high-efficiency, high-performance, and low-cost motors with a more secure supply ...
B. Bilgin +6 more
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Density Asymmetry Driven Propulsion of Ultrasound‐Powered Janus Micromotors
Advanced Functional Materials, 2020The ability of acoustically propelled micro and nanoscale motors to perform diverse tasks while moving in solutions can open up new applications in diverse fields such as medicine, biotechnology, and materials science.
Miguel Valdez‐Garduño +6 more
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1993
Publisher Summary This chapter describes nuclear propulsion. Nuclear reactors serve as the power source for the propulsion of submarines and aircraft carriers. Tests of reactors for aircraft and for rockets have been made and reactors are being considered for future space missions.
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Publisher Summary This chapter describes nuclear propulsion. Nuclear reactors serve as the power source for the propulsion of submarines and aircraft carriers. Tests of reactors for aircraft and for rockets have been made and reactors are being considered for future space missions.
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Propulsion Integration for a Hybrid Propulsive-Lift System
SAE Technical Paper Series, 1974In a discussion of STOL vehicles with conventional high-lift devices, the need for efficient power-augmented lift systems is presented, and the implications of quiet operation are noted. The underlying philosophy of a promising hybrid lift system with major interactions between aerodynamic, thermodynamic, acoustic, and configuration design technologies
M. K. Bowden, H. S. Sweet, J. H. Renshaw
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Electric propulsion systems for primary spacecraft propulsion
3rd Propulsion Joint Specialist Conference, 1967Primary electric propulsion systems for deep space missions with reference to SERT II program and compatibility with other spacecraft ...
D. J. Kerrisk, H. R. Kaufman
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Propulsion patterns and pushrim biomechanics in manual wheelchair propulsion
Archives of Physical Medicine and Rehabilitation, 2002To classify stroke patterns of manual wheelchair users and to determine if different patterns of propulsion lead to different biomechanics.Case series.Biomechanics laboratory.Thirty-eight individuals with paraplegia who use manual wheelchairs for mobility.Subjects propelled their own wheelchair on a dynamometer at 2 different steady state speeds ...
Alicia M Koontz +5 more
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