Results 31 to 40 of about 63,437 (256)
A Directional Microplasma Thruster Exhibiting a Switchable Intense Plasma Coupling
IEEE Access, 2020 Conventional cold and warm gas thrusters with low specific impulses and thrust greatly limit the capability of nanosatellites to conduct meaningful plane and attitude changes in space.
Sung-O Kim +2 more
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DESIGN AND DEVELOPMENT OF AUTO DEPTH CONTROL OF REMOTELY OPERATED VEHICLE USING THRUSTER SYSTEM [PDF]
Journal of Mechanical Engineering and Sciences, 2014 Remotely Operated Vehicles are underwater robots designed specifically for surveillance, monitoring and collecting data for underwater activities. In the underwater vehicle industries, the thruster is an important part in controlling the direction, depth
F.A. Ali +4 more
doaj +1 more source
Journal of Physics: Conference Series, 2020 The present work reports the results of the magnetoplasmadynamic (MPD) thruster with an applied field (AF) based on the second-generation high-temperature superconductor (2G HTS) tape functioning research.
A. Voronov +4 more
semanticscholar +1 more source
Emission Modes in Electrospray Thrusters Operating with High Conductivity Ionic Liquids
Aerospace, 2020 Electrospray thruster life and mission performance are strongly influenced by grid impingement, the extent of which can be correlated with emission modes that occur at steady-state extraction voltages, and thruster command transients.
Nolan M. Uchizono +6 more
doaj +1 more source
A Parallelized Genetic Algorithm to Evaluate Asteroid Impact Missions Using Electric Propulsion
Aerospace, 2022 A streamlined genetic algorithm was developed and implemented on a GPU to evaluate low-thrust trajectories of spacecraft propelled by an ion thruster. It was then applied to examine the utility of a specific thruster for an asteroid impact mission.
Kamesh Sankaran +4 more
doaj +1 more source
Research on the life-limiting sputtering mechanism of 30 cm ion thruster
AIP Advances, 2022 “Pits-and-grooves” patterns on the downstream accelerator grid surface had a severe effect on the thruster life; however, the sputtering patterns on the decelerator grid upstream surface were also observed after the thruster worked for over 3000 h ...
Juanjuan Chen +5 more
doaj +1 more source
, 1990 The invention relates to monitoring circuitry for the real time detection of vibrations of a predetermined frequency and which are greater than a predetermined magnitude. The circuitry produces an instability signal in response to such detection.
Bozeman, Richard J., Jr.
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Simulating a Cyber-Attack on the Mass Thruster Controllers at Low-Speed Motion
Promet (Zagreb)The aim of this paper is to highlight the vulnerability of Maritime Autonomous Surface Ships (MASS) to cyber-attack and to illustrate, through a simulation experiment on a testbed, how to mitigate a cyber-attack on the MASS thruster controllers during ...
Igor ASTROV, Sanja BAUK
doaj +1 more source
Development of a Laser Micro-Thruster and On-Orbit Testing
Aerospace, 2023 Laser micro-thrust technology is a type of propulsion that uses a laser beam to ablate a propellant such as a metal or plastic. The ablated material is expelled out the back of the spacecraft, generating thrust.
Jifei Ye +8 more
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Active control of potential of the geosynchronous satellites ATS-5 and ATS-6 [PDF]
, 1977 The ATS-6 geosynchronous satellite carries two cesium ion thrusters as part of the technology experiment package. Their effectiveness in controlling the spacecraft potential was shown during normal operation of the thrusters.
Goldstein, R.
core +1 more source