Results 31 to 40 of about 11,714,340 (345)

On Carbon Burning in Super Asymptotic Giant Branch Stars [PDF]

open access: yes, 2015
We explore the detailed and broad properties of carbon burning in Super Asymptotic Giant Branch (SAGB) stars with 2755 MESA stellar evolution models.
Farmer, R., Fields, C. E., Timmes, F. X.
core   +2 more sources

Nano-Sized and Mechanically Activated Composites: Perspectives for Enhanced Mass Burning Rate in Aluminized Solid Fuels for Hybrid Rocket Propulsion

open access: yes, 2019
This work provides a lab-scale investigation of the ballistics of solid fuel formulations based on hydroxyl-terminated polybutadiene and loaded with Al-based energetic additives.
C. Paravan
semanticscholar   +1 more source

Specificity of Burning of Porous Combustible Material Used as Cartridge Case

open access: yesEnergies, 2022
The combustible cartridge case has become an integral part of many modern weapons systems. The energetic and burning characteristics of the combustible case can have a significant impact on shot parameters. This paper describes Closed Vessel Tests (CVTs)
Zbigniew Surma   +2 more
doaj   +1 more source

Systematic Measurement of Hydrocarbon Fuel Droplet Burning Rate Constants and Ignition Delays

open access: yesJournal of Propulsion and Power, 2018
In this experimental study, a new data reduction approach was developed for measuring droplet burning rate constants that automatically finds the most linear part of the d-squared curve for the lon...
J. Bennewitz, A. Badakhshan, D. Talley
semanticscholar   +1 more source

Study on the Combustion Characteristics of Ethanol Nanofuel

open access: yesAerospace, 2023
This study investigates the thermophysical and combustion characteristics of ethanol-based nanofuels incorporating aluminum (Al) and nickel-coated aluminum (Ni-Al). The nanofuels are prepared with varying concentrations of Al and Ni-Al nanoparticles. The
Kwanyoung Noh   +3 more
doaj   +1 more source

Investigation of the rocket motor dimensionless geometric parameters influence on the burning rate of double base propellant

open access: yesVojnotehnički Glasnik, 2001
The investigation included experimental and theoretical studies of internal ballistic characteristics with a particular attention to erosive rate burning in function of propellant-motor system geometric parameters.
Lajoš Tot , Panto Maslak
doaj   +1 more source

Numerical Investigation on the Effect of Ammonium Perchlorate Content and Position on the Combustion Characteristics of an Ammonium Perchlorate/Hydroxyl-Terminated Polybutadiene Propellant

open access: yesAerospace, 2023
A gas–solid-coupled sandwich combustion model was established for ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) composite propellant.
Di Sun   +4 more
doaj   +1 more source

Nitramine propellants [PDF]

open access: yes, 1978
Nitramine propellants without a pressure exponent shift in the burning rate curves are prepared by matching the burning rate of a selected nitramine or combination of nitramines within 10% of burning rate of a plasticized active binder so as to smooth ...
Cohen, N. S., Strand, L. D.
core   +1 more source

The Effects of Thermonuclear Reaction-Rate Variations on 26Al Production in Massive Stars: a Sensitivity Study [PDF]

open access: yes, 2011
We investigate the effects of thermonuclear reaction rate variations on 26Al production in massive stars. The dominant production sites in such events were recently investigated by using stellar model calculations: explosive neon-carbon burning ...
Alessandro Chieffi   +26 more
core   +3 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

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