Results 21 to 30 of about 391,161 (334)
Stage reduced counter-rotating axial compressor for jet engine
International Journal for Simulation and Multidisciplinary Design Optimization, 2021 Variation in the states of system, mass flow and pressure are some of the disturbances which are experienced by the compressors in the jet engine under working condition.
Ferdaus F. +3 more
doaj +1 more source
Electric Propulsion Methods for Small Satellites: A Review
Aerospace, 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
Designing displaced lunar orbits using low-thrust propulsion [PDF]
, 2010 The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Colin R. McInnes +9 more
core +1 more source
Genetic algorithm-based multiple moving target reaching using a fleet of sailboats
IET Cyber-systems and Robotics, 2019 This study addresses the problem of Dynamic Travelling Salesman Problem for a multi-agent system using a fleet of sailboats. A genetic algorithm (GA) is proposed, which attributes to each agent a varying number of targets to be collected.
Viel Christophe +4 more
doaj +1 more source
Mixing Enhancement Study in Axisymmetric Trapped-Vortex Combustor for Propane, Ammonia and Hydrogen
ModellingThe trapped-vortex combustor (TVC) is an alternative combustor design to conventional aeroengine combustors. The separate fuel and air injection of this combustor and its compact design make it a perfect candidate for conventional fuel usage.
Heval Serhat Uluk +2 more
doaj +1 more source
Influence of Handrim Wheelchair Propulsion Training in Adolescent Wheelchair Users
Frontiers in Bioengineering and Biotechnology, 2015 Ten full time adolescent wheelchair users (ages 13-18) completed a total of three propulsion trials on carpet and tile surfaces, at a self-selected velocity, and on a concrete surface, at a controlled velocity. All trials were performed in their personal
Jennifer L Dysterheft +2 more
doaj +1 more source
Introduction to "To the Question of Energy Use of Detonation Combustion" by Ya. B. Zel'dovich [PDF]
, 2006 Ya. B. Zel’dovich (1914–1987) made numerous contributions [1] to the theory of detonation, beginning with his very well known and widely translated article [2] on detonation structure that first introduced the standard Zel’dovich-von Neumann-Döring (ZND)
Shepherd, J. E., Wintenberger, E.
core +1 more source
The Role of the Double-Layer Potential in Regularised Stokeslet Models of Self-Propulsion
Fluids, 2021 The method of regularised stokeslets is widely used to model microscale biological propulsion. The method is usually implemented with only the single-layer potential, the double-layer potential being neglected, despite this formulation often not being ...
David J. Smith +3 more
doaj +1 more source
The applicability of MFD thrusters to satellite power systems [PDF]
, 1980 The high power self field MPD thruster uses electromagnetic forces rather than electrostatic to accelerate a neutral plasma. The most attractive application of MPD thrusters to satellite power systems is in the area of electric propulsion for a cargo ...
Jones, R. M., Rudolph, L. K.
core +1 more source
Active Brownian motion in a narrow channel
, 2014 We review recent advances in rectification control of artificial microswimmers, also known as Janus particles, diffusing along narrow, periodically corrugated channels.
Ao, Xue +5 more
core +1 more source