Results 11 to 20 of about 129,630 (391)

Electrical Ground Support Equipment (EGSE) Design for Small Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
This paper describes EGSE design for the small satellite such like KOMPSAT-2 satellite. Recent design trend of small satellite and EGSE is to take short development time and less cost. For this purpose, the design for KOMPSAT-2 satellite and EGSE are not
Jong-Oh Park   +6 more
doaj   +1 more source

A Global Model Study of Plasma Chemistry and Propulsion Parameters of a Gridded Ion Thruster Using Argon as Propellant

open access: yesPlasma, 2022
This work reports on the (zero-dimensional) global model study of argon plasma chemistry for a cylindrical thruster based on inductively coupled plasma (ICP) whose output has a system of two grids polarized with each other with direct current potential ...
Bernardo Magaldi   +3 more
doaj   +1 more source

Beyond superconductivity towards novel biomedical, energy, ecology, and heritage applications of MgB2

open access: yesGreen Chemistry Letters and Reviews, 2022
Twenty years passed since the discovery of superconductivity in MgB2. Although there is much progress, the use of superconductors, in general, and of MgB2 in particular, remains limited.
Petre Badica, Dan Batalu
doaj   +1 more source

Studies on composite solid propellant with tri-modal ammonium perchlorate containing an ultrafine fraction

open access: yesDefence Technology, 2017
Composite solid propellant is prepared using tri-modal Ammonium perchlorate (AP) containing coarse, fine and ultrafine fractions of AP with average particle size (APS) 340, 40 and 5 μm respectively, in various compositions and their rheological ...
K.V. Suresh Babu   +4 more
doaj   +1 more source

Research Progress of Bonding Agents and Their Performance Evaluation Methods

open access: yesMolecules, 2022
Bonding agents are an important type of additive that are used to increase the interfacial interaction in propellants. A suitable bonding agent can prevent the dewetting between the oxidant and binder, and thus effectively improve the mechanical ...
Junyan Gan   +7 more
doaj   +1 more source

Dynamic Mechanical Response and Damage Mechanism of HTPB Propellant under Impact Loading

open access: yesMaterials, 2020
The dynamic mechanical behaviors of Hydroxyl-terminated polybutadiene (HTPB) propellant was studied by a split Hopkinson pressure bar apparatus (SHPB) at strain rates ranging from 103 to 104 s−1.
Hengning Zhang   +6 more
semanticscholar   +1 more source

Autophage engines: towards a throttleable solid motor [PDF]

open access: yes, 2018
This paper describes the instrumented test firing of a rocket that seeks to combine the throttleability of a liquid-fueled engine with the simplicity of a solid motor.
Dron, Mykola   +5 more
core   +1 more source

Impulse and Performance Measurements of Electric Solid Propellant in a Laboratory Electrothermal Ablation-Fed Pulsed Plasma Thruster

open access: yesAerospace, 2020
Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled and extinguished) through the application and removal of an electric current.
M. S. Glascock, J. Rovey, K. Polzin
semanticscholar   +1 more source

CFD Analysis of De Laval Nozzle of a Hybrid Rocket Engine [PDF]

open access: yesE3S Web of Conferences
: The study gives a general overview of the CFD-simulated gas flow via the nozzle of a De Laval rocket engine. In CFD software, the mesh is generated using the nozzle’s geometry.
Ahmad Mohamed Tarmizi   +6 more
doaj   +1 more source

Evaluation of elastomeric heat shielding materials as insulators for solid propellant rocket motors: A short review

open access: yes, 2020
This review addresses a comparison, based on the literature, among nitrile rubber (NBR), ethylene-propylene-diene-monomer rubber (EPDM), and polyurethane (PU) elastomeric heat shielding materials (EHSM).
J. Q. Amado   +4 more
semanticscholar   +1 more source

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