Results 11 to 20 of about 72,527 (347)
Rubber 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
Indian Journal of Plastic Surgery, 2022 AbstractA propeller flap is an islanded flap that reaches the recipient site through an axial rotation around its vascular axis. The degree of rotation varies from 90 degrees to 180 degrees. It is a highly reliable local reconstructive option. These flaps are simple, single-stage, easy to harvest, and not constrained by routine length-to-width ratios ...
Nikhil Panse, Ankur Karanjkar
openaire +3 more sources
THE PROPELLER AND THE FROG [PDF]
The 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
Eugene Chiang, Margaret Pan
openaire +3 more sources
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
Dynamic Mechanical Response and Damage Mechanism of HTPB Propellant under Impact Loading
Materials, 2020 The dynamic mechanical behaviors of Hydroxyl-terminated polybutadiene (HTPB) propellant was studied by a split Hopkinson pressure bar apparatus (SHPB) at strain rates ranging from 103 to 104 s−1.
Hengning Zhang +6 more
semanticscholar +1 more source
Aerospace, 2020 Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled and extinguished) through the application and removal of an electric current.
M. S. Glascock, J. Rovey, K. Polzin
semanticscholar +1 more source
Infigratinib in children with achondroplasia: the PROPEL and PROPEL 2 studies
Therapeutic Advances in Musculoskeletal Disease, 2022 Background: Achondroplasia is the most common short-limbed skeletal dysplasia resulting from gain-of-function pathogenic variants in fibroblast growth factor receptor 3 ( FGFR3) gene, a negative regulator of endochondral bone formation. Most treatment options are symptomatic, targeting medical complications.
Savarirayan, Ravi +25 more
openaire +8 more sources
THE COMPATIBILITY OF MODEL FOR LOW SHEAR FLOW ANALYSIS IN DEVELOPING PLASTICIZED HTPB-BASED BINDER
Spektra: 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
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
Corrosion Behavior of Titanium Alloy in Hydroxylammonium Nitrate (HAN)Based Propellant Using Electrochemical Noise Technology [PDF]
Cailiao BaohuHydroxylammonium nitrate (HAN)-based propellant is a new type of green propellant.The compatibility of HAN-based propellants with traditional aerospace structural materials， such as titanium alloys， requires further investigation.The corrosion behavior ...
TANG Zhanmei, PENG Zheng, GUO Wei, BAO Shiguo, SUN Haiyun, ZHANG Xiaoliang
doaj +1 more source