Results 31 to 40 of about 5,506 (265)

Investigation of Effect of Rheological Behavior of Gelled Propellant on Atomization Characteristics of Swirl Injector [PDF]

open access: yesفناوری در مهندسی هوافضا, 2021
The Gelled propellants have a promising future for aerospace applications because of possessing the advantages of both solid and liquid propellants. A gel propellant is a liquid propellant whose rheological properties have changed by the addition of ...
Ali Saberi moghaddam   +2 more
doaj   +1 more source

Proizvodnja piropatrona i raketnih motora pilotskih sedišta / Production of cartridges and eject seat rocket motors

open access: yesVojnotehnički Glasnik, 2006
Ovaj rad sadrži opis uspešnog razvoja i proizvodnje piropatrona, pogonskih punjenja i raketnih motora izbacivih pilotskih sedišta. Opisan je proces razvoja putem kopiranja stranog rešenja i njihovih modifikacija.
Milorad Savković, Danilo Serdarević
doaj   +1 more source

Long term investigation of bonding characteristics between PVC based inhibitor and HTPB/IPDI based propellant [PDF]

open access: yesScientific Technical Review
Bonding characteristics between extruded polyvinyl chloride (PVC) inhibitor and casted hydroxyl terminated polybutadiene/isophorone isocyanate (HTPB/IPDI) propellant, investigated in a long period of time, are topics of this paper. Basic statements about
Radulović Jovan, Milojković Aleksandar
doaj   +1 more source

Optimizing ideal ion propulsion systems depending on the nature of the propellant [PDF]

open access: yesINCAS Bulletin, 2016
From all accounts the ion thrusters are characterized by the fact that they produce a very high exhaust velocity and specific impulse, sometimes too high for many missions.
Grigore CICAN, Ionut-Florian POPA
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

Determining the major propellants of I.R. Iran’s defensive diplomacy in regional and international levels [PDF]

open access: yesآینده‌پژوهی دفاعی, 2016
Defensive Diplomacy is a part of government policy which plays role as an important tool in achieving the major objectives of the armed forces and its purpose can be considered to develop favorable national and international political conditions for ...
Hossein Minaee   +3 more
doaj  

Experimental and Theoretical Determination of Water-Jet Velocity for Disruptor Application Using High Speed Videography [PDF]

open access: yesProblemy Mechatroniki, 2019
Experimental and theoretical determination of water-jet velocity using high speed videography for disruptor application is reported in this paper. Water-jet disruptor extensively uses the water as a liquid projectile.
Bhupesh Ambadas PARATE   +3 more
doaj   +1 more source

A Viscometric study of mixtures with Hydroxyl-terminated polybutadiene (HTPB) and short chain diols used in the formulations of solid composite propellants

open access: yesAnais da Academia Brasileira de Ciências, 2021
Hydroxyl-terminated polybutadiene (HTPB) is widely used in the formulations of solid propellants used in rocket motors. Furthermore, in general, chain extenders and short chain diols, such as 1,4-butanediol and 1,2-propanediol, can also be used in ...
BRUNO C.C. DA CUNHA   +2 more
doaj   +1 more source

High-nitrogen azotetrazole based pyrogen gas generating propellants: Aspects on synthesis, characterization, combustion characteristics and kinetics

open access: yesFirePhysChem
Propellant formulations containing a novel high nitrogen azotetrazole salt viz., diammonium 5,5′-azotetrazolate (DAAzT) along with two different binders viz., hydroxyl terminated polybutadiene (HTPB) and glycidyl azide polymer (GAP) were realized as ...
Santhosh G   +4 more
doaj   +1 more source

Fenomen erozije cevi naoružanja / Gun barrel erosion

open access: yesVojnotehnički Glasnik, 2009
U radu su prikazana dosadašnja istraživanja erozije cevi. Trošenje cevi je neizbežan proces do kojeg dolazi pri svakom opaljenju. Erozija cevi može se definisati kao progresivna povreda ili oštećenje površine cevi i proširenje kalibra usled opaljenja ...
Slobodan Ilić, Goran Marjanović
doaj   +1 more source

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