Results 1 to 10 of about 350,639 (185)
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
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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
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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
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Analysis of Energy Utilization and Losses for Jet-Propelled Vehicles
Aerospace, 2021 The global control volume-based energy utilization balance for an aerospace vehicle is extended to allow for the analysis of jet-propelled vehicles.
Mohammad Abbas, David W. Riggins
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Siberian Journal of Life Sciences and AgricultureBackground. Tire properties are the main factors determining traction and agricultural technological performance of wheeled mobile energy vehicles. Purpose.
Vladimir A. Kravchenko +3 more
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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
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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
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Fan Stage Design and Performance Optimization for Low Specific Thrust Turbofans
International Journal of Turbomachinery, Propulsion and Power, 2023 In modern turbofan engines, the bypass section of the fan stage alone provides the majority of the total thrust required in cruise, and the size of the fan has a considerable effect on the overall engine weight and nacelle drag.
Oliver Sjögren +3 more
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Frontiers in Sports and Active Living, 2023 IntroductionImproving swimming performance involves assessments of biomechanical variables of the stroke, and it can be achieved using semi-tethered swimming tests. The aim of this study was thus to investigate the associations between load-velocity (L-V)
Yannis Raineteau +8 more
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Advances in Engine Efficiency: Nanomaterials, Surface Engineering, and Quantum-Based Propulsion
MagnetochemistryThis study explores ground-breaking methods for improving engine efficiency by combining cutting-edge materials, theoretical frameworks, and alternative energy paradigms.
Mario J. Pinheiro
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