Results 1 to 10 of about 72,527 (347)

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
doaj   +2 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 Propellant Formulations: A Review of Recent Progress and Utilized Components

open access: yesMaterials, 2021
The latest developments in solid propellants and their components are summarized. Particular attention is given to emerging energetic binders and novel, ‘green’ oxidizing agents and their use in propellant formulations.
Kinga Lysien   +2 more
semanticscholar   +1 more source

Designing the bioproduction of Martian rocket propellant via a biotechnology-enabled in situ resource utilization strategy

open access: yesNature Communications, 2021
Mars colonization demands technological advances to enable the return of humans to Earth. Shipping the propellant and oxygen for a return journey is not viable.
Nicholas S. Kruyer   +4 more
semanticscholar   +1 more source

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

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

Optimization of Factors Affecting the Synthesis of Polypropylene Glycol/Polyglycidyl Nitrate/ Polypropylene Glycol Triblock Copolymer and Evaluation of Its Thermal Properties [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2020
Hypothesis: Polyglycidyl nitrate (PGN) is used in the manufacture of propellant elastomers due to its properties such as highly energetic composition, high density, high oxygen balance, high explosion enthalpy and suitable compatibility with other ...
Tayebe Khanlari   +2 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

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

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