Results 121 to 130 of about 36,758 (316)

Research on Micro-Propulsion Performance of Laser Ablation ADN-Based Liquid Propellant Enhanced by Chemical Energy

open access: yesAerospace
The vigorous development of micro–nano satellites urgently requires satellite-borne propulsion systems as support. Pulsed laser ablation micro-propulsion can meet these high demands. Ammonium dinitramide (ADN), as a green monopropellant, can serve as the
Luyun Jiang   +7 more
doaj   +1 more source

Wheelchair Axle Position Effect on the Propulsion Performance of Persons With C7 Tetraplegia: A Repeated-Measures Study. [PDF]

open access: yesTop Spinal Cord Inj Rehabil, 2022
Freixes O   +7 more
europepmc   +1 more source

PREMIUM YACHT PROPULSION FOR EXCLUSIVE PERFORMANCE [PDF]

open access: yesDesign & Construction of Super and Mega Yachts 2019, 2019
SCHOTTEL offers a wide range of main and auxiliary propulsion systems for yachts. This paper will present characteristics of different propulsion solutions: The 5-bladed controllable pitch propeller for highest propulsive efficiency for changing speed or load or the EcoPeller with best values in overall efficiency and course stability.
openaire   +1 more source

Electrocapillary Modulated Interfacial Tension Amplifies Liquid Metal Transduction

open access: yesAdvanced Functional Materials, EarlyView.
This study presented an electrocapillary‐enhanced magnetohydrodynamic pumping strategy that harnesses the Lorentz force and interfacial tension modulation of liquid metal droplets to achieve amplified fluidic power. The system enabled low‐voltage, self‐oscillating fluidic transduction with enhanced pressure and flow generation, supporting compact ...
Saba Firouznia   +3 more
wiley   +1 more source

Analytical Framework for Staging of Space Propulsion Systems [PDF]

open access: yes, 2019
Staging of space propulsion systems would allow lifetime limitations inherent to small propulsion systems to be bypassed in order to enable high-ΔV capabilities for small spacecraft, in particular mass and volume constrained CubeSats.
Lozano, Paulo, Jia-Richards, Oliver
core   +1 more source

Hydrodynamic Assessment of Distributed Propulsion Systems for Shallow-Draft Inland Vessels

open access: yesPolish Maritime Research
This study investigates the hydrodynamic performance of three distributed propulsion configurations with distinct hull shapes. The influence of duct design and hull geometry on thrust, absorbed power, and the resulting thrust-to-power ratio is explored ...
Jurkovic Martin   +5 more
doaj   +1 more source

Assessment of Wheelchair Propulsion Performance in an Immersive Virtual Reality Simulator. [PDF]

open access: yesInt J Environ Res Public Health, 2021
Yang YS   +4 more
europepmc   +1 more source

Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses

open access: yesAdvanced Functional Materials, EarlyView.
By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso   +4 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Microthrusters based on the T5 and T6 hollow cathodes [PDF]

open access: yes, 2011
Small spacecraft with limited on-board resources would benefit greatly from the development of a low power, low cost microthruster able to offer propellant savings over conventional alternatives and enable higher energy missions.
Grubisic, Angelo Niko, Grubisic, Angelo
core  

Home - About - Disclaimer - Privacy