Results 31 to 40 of about 1,081 (308)

Spatial evolution characteristics of ion and electron flow for 300 W class low-power Hall thruster

open access: yesAIP Advances, 2021
The Faraday probe and cylindrical Langmuir probe were used to characterize the downstream ion and electron spatial evolution of a 300 W class low-power Hall thruster.
Xinwei Chen   +10 more
doaj   +1 more source

Radial distribution of electrons rotation moment in hall effect and plasma-ion thrusters

open access: yesАвіаційно-космічна техніка та технологія, 2021
The subject matter of the article is the radial distribution of electrons movement parameters inside electric propulsion thrusters with closed electrons drift.
Zongshuai Guo
doaj   +1 more source

Development of an indirect thrust stand based on a cantilever beam

open access: yesAIP Advances, 2021
There is a large number of missions that have been or will be launched soon that utilize the electric propulsion (EP), which is considered a key technology for applications in present and future space missions.
H. Zhang, D. T. Li, F. He, X. W. Chen
doaj   +1 more source

PPU for a small, low power and low cost EPS [PDF]

open access: yesMATEC Web of Conferences, 2019
The objective of this paper is to present the design of the Power Processing Unit (PPU) of the Microsatellite Electric Propulsion System (MEPS) program currently being developed at Elegant Bread Board (EBB).
Savvas Spiridon   +2 more
doaj   +1 more source

Hall Effect Thruster Direct Drive PPUs, Experimental Investigation of the Cathode Potential Grounding Problem

open access: yesE3S Web of Conferences, 2017
In order to maximize system mass and cost savings, a Hall Effect Thruster Direct Drive Approach shall ideally get away with the need to provide galvanic isolation for the Anode voltage.
Ghislanzoni Luca   +4 more
doaj   +1 more source

Artery‐on‐Chip Demonstrates Mechanical and Functional Features of Healthy and Diseased Living Smooth Muscle Tissue

open access: yesAdvanced Functional Materials, EarlyView.
This article details the development of an artery‐on‐chip platform for in vitro arterial disease modeling and therapeutic discovery. It describes the fabrication of a fibrin biomaterial scaffold seeded with iPSC‐derived smooth muscle and endothelial cells, mimicking native artery properties. Two genetic disease models showcase the platform's ability to
Danielle Yarbrough   +10 more
wiley   +1 more source

The Influence of the Magnetic Field Line Curvature on Wall Erosion near the Hall Thruster Exit Plane

open access: yesApplied Sciences, 2023
One of the main factors that limit the lifetime of the Hall effect Thrusters (HETs) is the erosion of the acceleration channel caused by the flux of energetic ions.
Lulu Quan, Yong Cao, Bin Tian, Keyu Gong
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

open access: yesAdvanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami   +15 more
wiley   +1 more source

Inter-Laboratory Characterisation of a Low-Power Channel-Less Hall-Effect Thruster: Performance Comparisons and Lessons Learnt

open access: yesAerospace
A 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

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