Results 41 to 50 of about 7,758 (239)

Thermal decomposition reaction mechanism and combustion performance of AlH3/AP energetic composite

Case Studies in Thermal Engineering, 2022
To study the reaction mechanism and the optimal energy release ratio of the AlH3/AP energetic composite particles, we prepared six different AlH3/AP energetic composites by wet-mixing after the ultrafine treatment of AP by a jet refiner based on the ...
Minjie Li, Chenyang Li, Yu Song, Chunyan Li, Wangjian Cheng, Chuanhao Xu, Ni Yun, Chongwei An   +7 more
doaj   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source

Performance evaluation of commercial copper chromites as burning rate catalyst for solid propellants [PDF]

Journal of Aerospace Technology and Management, 2010
Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Milton Faria Diniz, Eunice Aparecida Campos, Luis Cláudio Rezende, Rita de Cássia L. Dutra, Wilma Massae Dio Nawa, Koshun Iha   +5 more
doaj  

Micro/Nanorobot for Drug Delivery—A Review of Material Selections

Advanced NanoBiomed Research, EarlyView.
This review explores material strategies for biomedical micro/nanorobots, emphasizing their roles in propulsion, navigation, drug delivery, and biodegradability. It highlights advancements in metallic, polymeric, and hybrid materials, while addressing clinical translation challenges such as toxicity, immune response, and manufacturability.
Xiaozhuo Wu, Bingyun Li, Malcolm Xing
wiley   +1 more source

Enhanced thermal performance and hydrochloric acid gas (HCl) emission mitigation in ammonium perchlorate (AP)-Based solid propellants with potassium permanganate (KMnO4)/AP dual oxidisers

Atmospheric Environment: X
The conventional propellant used in rocket boosters and tactical missiles commonly utilises ammonium perchlorate (AP). However, the release of harmful chloride fumes resulting from the combustion of AP during rocket launches contributes to a 1 % increase
Izzat Najmi Yaacob, Ezanee Gires, Adi Azrif Basri, Kamarul Arifin Ahmad, Kamsani Kamal, Nor Afizah Salleh, Suraya Shahedi, Fikri Rasih, Zakwan Azizi, Sharul Sham Dol, Norkhairunnisa Mazlan   +10 more
doaj   +1 more source

Thermal decomposition and kinetic modeling of HNTO/AN-based composite solid propellant in the presence of GO-based nanocatalyst

FirePhysChem, 2022
The present study has been conducted to investigate the characteristics of composite solid propellant (CSP) based on hydrazinium 3-nitro-1,2,4-triazol-5-one and ammonium nitrate (HNTO/AN) cocrystal as an oxidizer and hydroxyl-terminated polybutadiene ...
Sabrina Hanafi, Djalal Trache, Redha Meziani, Hani Boukeciat, Ahmed Fouzi Tarchoun, Amir Abdelaziz, Abderrahmane Mezroua   +6 more
doaj   +1 more source

Process for the leaching of AP from propellant [PDF]

, 1980
A method for the recovery of ammonium perchlorate from waste solid rocket propellant is described wherein shredded particles of the propellant are leached with an aqueous leach solution containing a low concentration of surface active agent while ...
Mcintosh, M. J., Shaw, G. C.
core   +1 more source

Arrhenius Activation Energy on Viscous and Radiative Heating of Hybridized Chemical Reactive Magnetized‐Casson Nanofluid Flow in Saturated Porous Media With Varied Heat Source/Sink

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study analyzes the influence of Arrhenius activation energy on the chemically reactive, magnetohydrodynamic Casson hybrid nanofluid flow past an exponentially stretching surface embedded in a Darcy–Forchheimer porous medium with a non‐uniform heat source/sink.
Md. Sailanebaba, MD. Shamshuddin, S. O. Salawu   +2 more
wiley   +1 more source

Mechanical properties of thermal aged HTPB composite solid propellant under confining pressure

Defence Technology, 2022
With the purpose of investigating the effects of confining pressure and aging on the mechanical properties of Hydroxyl-terminated polybutadiene (HTPB) based composite solid propellant, tensile tests of thermal accelerated aged propellant samples under ...
Zhe-jun Wang, Hong-fu Qiang
doaj   +1 more source

Launch Vehicle Description [PDF]

, 1970
The Thorad-Agena is a two-stage launch vehicle consisting of a Thorad first-stage and an Agena second-stage, connected by a booster adapter. The composite vehicle, including the shroud and the booster adapter, is about 33 meters (109 ft) long.
Coffey, E. E., Geye, R. P.
core   +1 more source