Results 21 to 30 of about 73,662 (318)

Diversity of Physical Processes: Challenges and Opportunities for Space Electric Propulsion

open access: yesApplied Sciences, 2022
The renewed interest in space exploration has led to the growth in research efforts pertaining to advanced space propulsion systems, including highly efficient electric propulsion systems.
Igor Levchenko   +7 more
doaj   +1 more source

Bridging the Technology Gap: Strategies for Hybrid Rocket Engines

open access: yesAerospace, 2023
Hybrid rocket propulsion, first demonstrated by the Russian GIRD-09 rocket in 1933, combines liquid oxidizer and solid fuel for thrust generation. Despite numerous advantages, such as enhanced safety, controllability, and potential environmental benefits,
Christopher Glaser   +2 more
doaj   +1 more source

Electric Propulsion Methods for Small Satellites: A Review

open access: yesAerospace, 2021
Over 2500 active satellites are in orbit as of October 2020, with an increase of ~1000 smallsats in the past two years. Since 2012, over 1700 smallsats have been launched into orbit. It is projected that by 2025, there will be 1000 smallsats launched per
Dillon O’Reilly   +2 more
doaj   +1 more source

Ammonia-based Solid Oxide Fuel Cell for zero emission maritime power: a case study [PDF]

open access: yesE3S Web of Conferences, 2022
Implementing environmentally friendly fuels and high efficiency propulsion technologies to replace the Internal Combustion Engine (ICE) fueled by fossil fuels such as Heavy Fuel Oil (HFO) and Marine Gas Oil (MGO) on board ships represents an attractive ...
Di Micco Simona   +4 more
doaj   +1 more source

Low-thrust liquid-propellant rocket engines as part of advanced ultralight rocket vehicle systems

open access: yesКосмические аппараты и технологии, 2021
This work examines the most promising design solutions for the creation of propulsion systems for ultra-light launch vehicles by small private enterprises in the rocket and space industry.
T. A. Basharina   +4 more
doaj   +1 more source

Smart mobility solutions in smart cities [PDF]

open access: yesInterdisciplinary Description of Complex Systems, 2022
A flying electric car in the smart city is a type of personal air vehicle that provides door-to-door transportation by both ground and air. In this article, we review the latest developments in flying cars. The autonomous flying car detects and evaluates
Gyula Mester
doaj   +1 more source

Development and tests of a thrust stand with an in-situ null position adjustment and calibration method for low power plasma thrusters

open access: yesResults in Engineering, 2023
A growing number of space missions use electric propulsion systems due to their higher specific impulse and greater efficiency compared to chemical propulsion systems.
Ugur Kokal, Emin Saridede, Murat Celik
doaj   +1 more source

Potential advantages of molten salt reactor for merchant ship propulsion

open access: yesBrazilian Journal of Radiation Sciences, 2021
Operating costs of merchant ships, related to fuel costs, has led the naval industry to search alternatives to the current technologies of propulsion power.
Luiz Gonzaga de Freitas Neto   +3 more
doaj   +1 more source

A Review of Low-Power Electric Propulsion Research at the Space Propulsion Centre Singapore

open access: yesAerospace, 2020
The age of space electric propulsion arrived and found the space exploration endeavors at a paradigm shift in the context of new space. Mega-constellations of small satellites on low-Earth orbit (LEO) are proposed by many emerging commercial actors ...
George-Cristian Potrivitu   +6 more
doaj   +1 more source

An Overview of Cube-Satellite Propulsion Technologies and Trends

open access: yesAerospace, 2017
CubeSats provide a cost effective means to perform scientific and technological studies in space. Due to their affordability, CubeSat technologies have been diversely studied and developed by educational institutions, companies and space organizations ...
Akshay Reddy Tummala, Atri Dutta
doaj   +1 more source

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