Results 11 to 20 of about 84,409 (357)

Review of alternative propellants in Hall thrusters

open access: yesActa Astronautica, 2023
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Vlad-George Tirila   +2 more
semanticscholar   +1 more source

Propulsion Systems, Propellants, Green Propulsion Subsystems and their Applications: A Review

open access: yesEurasian Chemico-Technological Journal, 2023
A wide range of propellants, and propulsion systems in space exploration by aircrafts or space vehicles was studied, developed, investigated, and commercialized. Liquid, solid, or hybrid propellants have been used for rocket’s launches. In this review, a
I. Remissa   +6 more
semanticscholar   +1 more source

Comparative Study on Combustion Behavior of Aluminum-Based Alloy Fuels and Aluminum Powder in Solid Propellants

open access: yesMetals, 2023
In order to reduce the ignition temperature and improve the combustion efficiency of aluminum powder, three aluminum-based alloy fuels, Al–Mg, Al–Zn, and Al–Si–Mg, were prepared by the atomization method.
Haoyu Xin, Kung Wang, H. Ren, Q. Jiao
semanticscholar   +1 more source

Ageing studies on AP/HTPB based composites solid propellants

open access: yesEnergetic Materials Frontiers, 2021
Components of solid rocket motor that are susceptible to ageing are propellant, insulator, inhibitor, interfaces, igniter system, and seals. Seals, insulator, ignition systems are replaceable but the motor would be recast when the deterioration in ...
H. Naseem   +3 more
semanticscholar   +1 more source

Effect of Metal Nanopowders on the Performance of Solid Rocket Propellants: A Review

open access: yesNanomaterials, 2021
The effects of different types of nano-sized metal particles, such as aluminum (nAl), zirconium (nZr), titanium (nTi), and nickel (nNi), on the properties of a variety of solid rocket propellants (composite, fuel-rich, and composite modified double base (
W. Pang   +7 more
semanticscholar   +1 more source

Monitoring Strain Response of Epoxy Resin during Curing and Cooling Using an Embedded Strain Gauge

open access: yesSensors, 2020
The present work describes the monitoring system of the real-time strain response on the curing process of epoxy resin from the initial point of curing to the end, and the change in strain during temperature changes.
Hongyu Dong   +9 more
doaj   +1 more source

Numerical Study on Pool Film Boiling of Liquid Hydrogen over Horizontal Cylinders

open access: yesEnergies, 2022
Due to the low boiling point of hydrogen, the boiling phenomenon is usually encountered in the applications of liquid hydrogen. The underlying mechanism as well as the physical performance of film boiling over horizontal cylinders are not yet fully ...
Jiaojiao Wang, Yanzhong Li, Lei Wang
doaj   +1 more source

Propeller Flaps

open access: yesIndian Journal of Plastic Surgery, 2022
AbstractA propeller flap is an islanded flap that reaches the recipient site through an axial rotation around its vascular axis. The degree of rotation varies from 90 degrees to 180 degrees. It is a highly reliable local reconstructive option. These flaps are simple, single-stage, easy to harvest, and not constrained by routine length-to-width ratios ...
Nikhil Panse, Ankur Karanjkar
openaire   +3 more sources

Study of photocurable energetic resin based propellants fabricated by 3D printing

open access: yes, 2021
Propellants are the main energy source in the internal ballistic process. The use of 3D printing has promised to produce propellants with complex geometries.
Manman Li   +4 more
semanticscholar   +1 more source

Recent advances in catalytic combustion of AP-based composite solid propellants

open access: yes, 2020
Composite solid propellants (CSPs) have widely been used as main energy source for propelling the rockets in both space and military applications. Internal ballistic parameters of rockets like characteristic exhaust velocity, specific impulse, thrust ...
N. Yadav, P. K. Srivastava, M. Varma
semanticscholar   +1 more source

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