Results 11 to 20 of about 5,506 (265)

Review of novel energetic polymers and binders – high energy propellant ingredients for the new space race

open access: yesDesigned Monomers and Polymers, 2019
Current solid rocket propellant formulations still employ traditional ingredients utilized since the 1960s, such as hydroxyl terminated polybutadiene (HTPB).
Tianze Cheng
exaly   +2 more sources

Study on the effect of RDX content on the properties of nitramine propellant

open access: yesDefence Technology, 2017
Four kinds of nitroamine propellants with different RDX contents (10%, 20%, 30% and 40%) were prepared to study the effect of RDX content on the mechanical properties and combustion properties of nitroamine propellant.
Fen Zhang
exaly   +3 more sources

Research advances in multifunctional catalysts for the conversion of lignin to biomass fuels

open access: yes工程科学学报, 2022
The development of biomass fuels is of great significance for reducing excessive dependence on fossil resources and global warming. Lignin is a complex aromatic biopolymer that is abundant in nature and can be used to produce high-value biomass fuels ...
Jun-cong QU   +4 more
doaj   +1 more source

SOLID PROPELLANTS [PDF]

open access: yesRubber Chemistry and Technology, 2019
ABSTRACT Solid propellants are energetic materials used to launch and propel rockets and missiles. Although their history dates to the use of black powder more than two millennia ago, greater performance demands and the need for “insensitive munitions” that are resistant to accidental ignition have driven much research and development over the ...
Mason, B.P., Roland, C.M.
openaire   +3 more sources

THE PROPELLER AND THE FROG [PDF]

open access: yesThe Astrophysical Journal, 2010
"Propellers" in planetary rings are disturbances in ring material excited by moonlets that open only partial gaps. We describe a new type of co-orbital resonance that can explain the observed non-Keplerian motions of propellers. The resonance is between the moonlet underlying the propeller, and co-orbiting ring particles downstream of the moonlet where
Pan, Margaret, Chiang, Eugene
openaire   +2 more sources

Density functional theory studies on N4 and N8 species: Focusing on various structures and excellent energetic properties

open access: yesFrontiers in Chemistry, 2022
All-nitrogen materials, as a unique branch of energetic materials, have gained huge attentions, of which cyclo-N5− derivatives are the representative synthetically reported materials.
Qing Lang   +4 more
doaj   +1 more source

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

Recommended Separation Distances for 1.3 Ammunition and Explosives

open access: yesFire, 2023
Separation Distances are used throughout the world to protect people and assets from the potential hazardous effects from propellants, explosives, and pyrotechnics.
Clint Guymon, Ming Liu, Josephine Covino
doaj   +1 more source

THE COMPATIBILITY OF MODEL FOR LOW SHEAR FLOW ANALYSIS IN DEVELOPING PLASTICIZED HTPB-BASED BINDER

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2020
In developing flow behavior of plasticized prepolymer as liquid content of composite solid propellant, zero shear viscosity (ZSV) is a critical parameter that Goh-Wan equation is developed to model it recently [1].
Afni Restasari   +4 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

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