Journal of Aerospace Technology and Management, 2023 Vacuum chambers providing a low pressure environment similar to the vacuum environment in low earth orbit have been used for the testing of plasma thrusters.
Ugur Kokal, Nazli Turana, Murat Celik
doaj
Integration Test of the High Voltage Hall Accelerator System Components [PDF]
NASA Glenn Research Center is developing a 4 kilowatt-class Hall propulsion system for implementation in NASA science missions. NASA science mission performance analysis was completed using the latest high voltage Hall accelerator (HiVHAc) and Aerojet ...
Dankanich, John +5 more
core +1 more source
Slip‐Adaptive Neural Control of Gecko‐Inspired Adhesive Robots
Advanced Intelligent Systems, EarlyView.This study introduces a neural adhesion controller to improve the stability of gecko‐inspired climbing robots. By integrating an echo state network and a multilayer perceptron, the system utilizes joint torque feedback to accurately estimate adhesion in both normal and shear directions and predict slips. This enables effective recovery from slip events,
Donghao Shao +3 more
wiley +1 more source
Performance Characteristics of Turkey’s First 1,5 kW Hall Thruster Electric Propulsion System
Havacılık ve Uzay Teknolojileri Dergisi, 2020 Due to significant advantages and successful applications, electric propulsion has become a key technology for both scientific and commercial space missions.
Demet Ulusen +7 more
doaj
Magnetic field deformation due to electron drift in a Hall thruster
AIP Advances, 2017 The strength and shape of the magnetic field are the core factors in the design of the Hall thruster. However, Hall current can affect the distribution of static magnetic field.
Han Liang +4 more
doaj +1 more source
Resolving multi-dimensional plasma phenomena in Hall thrusters using the reduced-order particle-in-cell scheme [PDF]
, 2022 Maryam Reza, Farbod Faraji, Aaron Knoll
openalex +1 more source
Real-Tme Boron Nitride Erosion Measurements of the HiVHAc Thruster via Cavity Ring-Down Spectroscopy [PDF]
Cavity ring-down spectroscopy was used to make real-time erosion measurements from the NASA High Voltage Hall Accelerator thruster. The optical sensor uses 250 nm light to measure absorption of atomic boron in the plume of an operating Hall thruster ...
Gallimore, Alec +4 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
Hall Thruster with Magnetic Discharge Chamber and Conductive Coating [PDF]
Hall thrusters with conductive coatings are disclosed. A Hall thruster comprises magnetic shielding in order to avoid collisions with the inner walls of its discharge chamber.
Goebel, Dan Michael
core +1 more source
Boundary-induced effect on the spoke-like activity in ExB plasma
, 2019 The spoke instability in an $E\times B$ Penning discharge is shown to be strongly affected by the boundary that is perpendicular to $B$ field lines. The instability is the strongest when bounded by dielectric walls.
Kaganovich, Igor +5 more
core +1 more source