Results 261 to 270 of about 14,546 (303)

Fusing of Seven HBCs toward a Green Nanographene Propeller

Journal of the American Chemical Society, 2019
This work presents a green chiral nanographene propeller (NP), which is built by fusing seven hexabenzocoronenes in a helical arrangement. It contains 258 conjugated carbon atoms and represents the largest three-dimensional conjugated polycyclic aromatic hydrocarbons ever prepared using scalable solution chemistry.
Yanpeng Zhu, Xiaoyu Guo, Yang Li, Jiaobing Wang   +3 more
openaire   +2 more sources

Ignition Test of Bi-Propellant Propulsion System Based on Green Propellants for Microsatellite

47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011
Purpose of microsatellites under 50kg-class development, is now becoming to practical and more complicated mission. At the same time, propulsion system for the microsatellites tends to be eagerly desired for their missions with orbit transfer. Therefore, we considered chemical propulsion is very suitable for the microsatellites and started to develop ...
Nobuyoshi Suzuki, Hironori Sahara
openaire   +1 more source

Pulsed Chemical Rocket with Green High Performance Propellants

49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2013
PulCheR (Pulsed Chemical Rocket with Green High Performance Propellants) is a new propulsion concept in which the propellants are fed in the combustion chamber at low pressure and the thrust is generated by means of high frequency pulses, reproducing the defence mechanism of a notable insect: the bombardier beetle.
PASINI, ANGELO, Lucio, Torre, PACE, GIOVANNI, VALENTINI, DARIO, D'AGOSTINO, LUCA   +4 more
openaire   +2 more sources

Development of Green Bi-Propellant Stage

SSRN Electronic Journal, 2022
Gino P. Joy, Sujithkumar R, Geetha S.
openaire   +1 more source

Green Self-Propelling Swimmer Driven by Rain Droplets

SSRN Electronic Journal, 2022
Chen, Y, Yan, D, Liu, R, Lu, Y, Zhao, D, Deng, X, Song, J   +6 more
openaire   +2 more sources

Green Propellants Research at Alta S.p.A

2010
A summary of the activities carried out in the last four years by Alta S.p.A. on hydrogen peroxide for propulsive applications is given. In the framework of European Space Agency and Italian Government funded projects, a significant know-how on this matter has been gained by Alta in collaboration with the Universities of Messina and Pisa.
TORRE L, ROMEO L, PASINI, ANGELO, CERVONE A, D'AGOSTINO, LUCA   +4 more
openaire   +1 more source

Ammonium Dinitramide (ADN) Decomposition as Green Propellant

Thermal decomposition of eco-friendly propellants such us ammonium dinitramide (ADN) aims to replace hydrazine in satellite systems. ADN, with formula [NH4]+[N(NO2)2]−, is a promising high-performance rocket propellant. It decomposes cleanly, producing gases such as NH3, H2O, NO, N2O, NO2, HONO, and HNO3, making it an attractive alternative to ammonium
Zakaria Harimech, Mohammed Salah, Rachid Amrousse   +2 more
openaire   +1 more source

Green plasticizers for multibase gun propellants (Lecture)

2007
TNO Defence, Security and Safety has a long history of research on gun propellants. Areas investigated are formulating (new ingredients, optimization), manufacturing, charge design and lifetime assessment [1,2,3,4,5]. In conventional propellants inert plasticizers are used to alter performance, processability or barrel erosion. Widely used plasticizers
Schoolderman, C., Driel, C.A. van, Zebregs, M.   +2 more
openaire   +1 more source

Energetic Hybrid Green propellant for small satellites

AIAA Propulsion and Energy 2021 Forum, 2021
Bhushan Thombare, Saumya Shekhar, Pranjal V. Mhatre, Preethi S   +3 more
openaire   +1 more source

Green Chemistry in the Synthesis of Pharmaceuticals

Chemical Reviews, 2022
Supratik Kar, Hans Sanderson, Kunal Roy
exaly