Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Horatiu Serbescu"'
Publikováno v:
Materials Science Forum. 962:194-201
In the aerospace industry the demand for very strong and light components is a permanent objective and for this matter composite materials began to be used at large scales in construction of space structures. The presence of micrometeoroids and orbit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a71bdc84e5cd223ec85727d386e8e2c0
https://doi.org/10.4028/www.scientific.net/msf.962.194
https://doi.org/10.4028/www.scientific.net/msf.962.194
Autor:
Constantin Sandu, Thomas Humbert, Yves Auregan, Marius Deaconu, Andrei Totu, Andrei Radu, Horatiu Serbescu, Traian Tipa
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 1226:012049
This paper presents research related influence of friction powders on enlarging the absorption band of acoustic liners used for reduction of tonal noise in fan duct of aero-engine. Kundt tube measurements done at COMOTI using fine powders (granules)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79638cee74c1781c4b057b9374c3ca3f
https://doi.org/10.1088/1757-899x/1226/1/012049
https://doi.org/10.1088/1757-899x/1226/1/012049
Publikováno v:
AIP Conference Proceedings.
Nowadays, satellites have a short lifespan due to the limited quantity of propellant that can be taken on board. On the other hand, some of the used propellants are not environmentally friendly, some of them being considered even poisonous, as hydraz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fa9cc7a0191a90ff163fb12dcb8c9da
https://doi.org/10.1063/1.5060684
https://doi.org/10.1063/1.5060684
Autor:
Constantin Sandu, Valentin Silivestru, Grigore Cican, Horațiu Șerbescu, Traian Tipa, Andrei Totu, Andrei Radu
Publikováno v:
Applied Sciences, Vol 10, Iss 20, p 7197 (2020)
This paper presents the development, construction and testing of a new type of solar–thermal propulsion system which can be used for low earth orbit (LEO) satellites. Currently, the vast majority of LEO satellites are fitted with a cold gas propuls
Externí odkaz:
https://doaj.org/article/d82bf6cbb6ea4b6a977081316b8b9136