Results 91 to 100 of about 8,678 (302)
MPD (MagnetoPlasmaDynamic) thrusters demonstrated between 2000 and 7000 seconds specific impulse at efficiencies approaching 40 percent, and were operated continuously at power levels over 500 kW.
Lapointe, Michael R. +2 more
core +1 more source
Spacecraft design project: High latitude communications satellite [PDF]
, 1989 The spacecraft design project was part of AE-4871, Advanced Spacecraft Design. The project was intended to provide experience in the design of all major components of a satellite.
Bauer, Terry +11 more
core +1 more source
Soft Artificial Ciliary Brush with Integrated Haptic Feedback for Efficient Airway Mucus Cleaning
Advanced Intelligent Systems, EarlyView.A fundamental mucus cleaning mechanism is reported, which utilizes both artificial cilia mechanical sweeping and suction‐based mucus cleaning. A novel haptic feedback interface for the artificial cilia provides touch feedback on tissue contact, enhancing operator control and safety.
Zhongming Lyu +7 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.Artificial intelligence (AI) is reshaping autonomous mobile robot navigation beyond classical pipelines. This review analyzes how AI techniques are integrated into core navigation tasks, including path planning and control, localization and mapping, perception, and context‐aware decision‐making. Learning‐based, probabilistic, and soft‐computing methods
Giovanna Guaragnella +5 more
wiley +1 more source
Thrust measurement methods for electric propulsion based on flexible beam structure
He jishuBackgroundElectric propulsion systems, compared to traditional chemical propulsion, offer longer operational lifespans and lower fuel consumption in space missions, garnering significant attention in recent years.
WANG Luoqi +9 more
doaj +1 more source
PPU MK3 For 5 KW Hall Effect Thrusters 11th European Space Power Conference
E3S Web of Conferences, 2017 Thales Alenia Space Belgium (ETCA) has developed and qualified the PPU Mk3, dedicated to 5kW Hall Effect Thrusters, to reply to the market demand of full electric satellites performing the Orbit Raising with Electrical Propulsion. The PPU Mk3 is based on
Bourguignon Eric, Fraselle Stéphane
doaj +1 more source
Australian Journal of Social Issues, EarlyView.ABSTRACT Robust measurement of disadvantage is essential to identifying and addressing inequities in children's development. We tested how a multidimensional framework of child disadvantage performed relative to a traditional socioeconomic position (SEP) approach to predict developmental outcomes.
Wei Hong +7 more
wiley +1 more source
Electric thruster research [PDF]
It has been customary to assume that ions flow nearly equally in all directions from the ion production region within an electron-bombardment discharge chamber. In general, the electron current through a magnetic field can alter the electron density, and
Kaufman, H. R., Robinson, R. S.
core +2 more sources
The Cost of the National Disability Insurance Scheme: Australia's Print‐Media Discourse
Australian Journal of Social Issues, EarlyView.ABSTRACT This paper examines the way that Australian newspapers have framed the cost of the National Disability Insurance Scheme (NDIS). Introduced in 2013, the NDIS represented a major change in Australia's disability support policy, moving for the first time to a nationwide universal insurance model.
Meera Chinnappa +2 more
wiley +1 more source
Recent advances in MPD thruster research at Princeton [PDF]
A summary of last years anode, plasma, and cathode findings is presented. A summary of this years activities and findings is also presented. A brief discussion of previous and current understanding is given and covers the following topics: existence of ...
Choueiri, Edgar Y., Jahn, Robert G.
core +1 more source