Results 71 to 80 of about 12,411 (357)
Atmosphere, 2020 Even after half a century of development, many phenomena in Hall Effect Thrusters are still not well-understood. While numerical studies are now widely used to study this highly non-linear system, experimental diagnostics are needed to validate their ...
Victor Désangles +8 more
doaj +1 more source
Use of emission spectroscopy for real-time assessment of relative wall erosion rate of BHT-200 hall thruster for various regimes of operation [PDF]
, 2010 Radiation emission due to Boron atoms sputtered from the Boron-Nitride ceramic walls of a BHT-200 Hall thruster was measured as a diagnostic for real time assessment of thruster wall erosion and to determine the e ects of various operation conditions on
Cheng +11 more
core +1 more source
Magnetic Flux Guides by Material Extrusion
Advanced Science, EarlyView.Magnetic flux guidance can increase inductive coupling and forces for magnetic sensors, actuators, and transducers. Here, a magnetic material extrusion method is used to fabricate flux concentration structures of arbitrary shapes with a magnetic permeability of 42. In line with simulation analysis, experimental results show that these materials provide
Jorge Cañada +4 more
wiley +1 more source
Axisymmetric Hybrid Plasma Model for Hall Effect Thrusters [PDF]
, 2021 Mario Panelli +4 more
openalex +1 more source
Self consistent kinetic simulations of SPT and HEMP thrusters including the near-field plume region
, 2009 The Particle-in-Cell (PIC) method was used to study two different ion thruster concepts - Stationary Plasma Thrusters (SPT) and High Efficiency Multistage Plasma Thrusters (HEMP-T), in particular the plasma properties in the discharge chamber due to the ...
Kalentev, O. +6 more
core +1 more source
An Intelligent Magneto‐Mechanical Platform for Cellular Sensing in 3D Microenvironments
Advanced Science, EarlyView.This study presents MagMI, a pioneering machine intelligence‐driven magneto‐mechanical sensing platform. It utilizes magneto‐mechanical arrays and machine learning to achieve label‐free, real‐time monitoring and classification of cellular proliferation dynamics within 3D microenvironments.
Yue Quan +4 more
wiley +1 more source
Spectroscopic Evidence of Edge‐Localized States in an Antiferromagnet Topological Insulator NdBi
Advanced Science, EarlyView.Using spin‐polarized scanning tunneling microscopy (STM) in conjunction with quasiparticle interference, we successfully identify distinct signatures of the ferromagnetic and antiferromagnetic terminations in NdBi, a rare‐earth monopnictide exhibiting non‐trivial topology and magnetism. We demonstrate that step edges on ferromagnetic surfaces host well‐
Avior Almoalem +8 more
wiley +1 more source
AerospaceA collaborative inter-laboratory study was conducted to characterise the performance of the novel 250 W External Discharge Plasma Thruster (XPT) with a channel-less Hall effect-type thruster designed to address lifetime limitations and lower-power ...
Thomas F. Munro-O’Brien +3 more
doaj +1 more source
Thermal stability of the krypton Hall effect thruster
Nukleonika, 2017 The Krypton Large IMpulse Thruster (KLIMT) ESA/PECS project, which has been implemented in the Institute of Plasma Physics and Laser Microfusion (IPPLM) and now is approaching its final phase, was aimed at incremental development of a ~500 W class Hall ...
Szelecka Agnieszka +2 more
doaj +1 more source
High Fidelity Multi-Objective Design Optimization of a Downscaled Cusped Field Thruster
Aerospace, 2017 The Cusped Field Thruster (CFT) concept has demonstrated significantly improved performance over the Hall Effect Thruster and the Gridded Ion Thruster; however, little is understood about the complexities of the interactions and interdependencies of the ...
Thomas Fahey +2 more
doaj +1 more source