Results 21 to 30 of about 78,885 (346)
Green 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
A MEMS-based solid propellant microthruster array for space and military applications [PDF]
, 2015 Since combustion is an easy way to achieve large quantities of energy from a small volume, we developed a MEMS based solid propellant microthruster array for small spacecraft and micro-air-vehicle applications.
Chaalane, A +9 more
core +2 more sources
Vojnotehnički 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
Optimizing ideal ion propulsion systems depending on the nature of the propellant [PDF]
INCAS 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
Xibei Gongye Daxue Xuebao, 2022 Aiming at the structural response characteristics of solid rocket motor (SRM) under vertical storage conditions, the creep tests of HTPB propellant under different stress levels were carried out, and the creep constitutive model of the propellant was ...
CHEN Ke +4 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]
علوم 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
Experimental and Theoretical Determination of Water-Jet Velocity for Disruptor Application Using High Speed Videography [PDF]
Problemy 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
Anais 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
Designed 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 +1 more source
Fenomen erozije cevi naoružanja / Gun barrel erosion
Vojnotehnički 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