Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Lifting gas"'
Publikováno v:
Aerospace, Vol 9, Iss 6, p 328 (2022)
During the long-endurance flight of a near-space aerostat, the characteristics of lifting gas diffusion have a great influence on the flight altitude adjustment and station-keeping performance. Thus, in this study, a lifting gas diffusion model and a
Externí odkaz:
https://doaj.org/article/db68244301a744558f7050413623e992
Akademický článek
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Publikováno v:
Acta Astronautica. 191:160-168
Solar balloons are a promising platform for providing multi-hour flights in and above the upper cloud layer of Venus. The temperature and pressure profiles from 55–75 km above the surface of Venus are very similar to Earth’s from sea level to app
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::445b9703dd4665ef04ada224beb39db3
https://doi.org/10.1016/j.actaastro.2021.10.030
https://doi.org/10.1016/j.actaastro.2021.10.030
Publikováno v:
Metallurgical and Materials Transactions B. 53:342-351
The effects of the ladle bottom stirring flow rate and the number of argon plugs on the circulation flow rate and mixing time in an RH degasser were studied using a physical simulation method. The flow field in the RH ladle was studied using particle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9452d0aef95826f9d8a629f4df3045dc
https://doi.org/10.1007/s11663-021-02371-8
https://doi.org/10.1007/s11663-021-02371-8
Publikováno v:
Advances in Space Research. 67:2517-2533
As the lighter-than-air (LTA) flight vehicle, the stratospheric airship is a desirable platform to provide communication and surveillance services. During the ascent from sea-level to the mission altitude, the volume of the lifting gas may change sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::846d5d515b86b24be04f89cce037925b
https://doi.org/10.1016/j.asr.2021.01.014
https://doi.org/10.1016/j.asr.2021.01.014
Autor:
Samandar wazeri
Publikováno v:
Majalah Ilmiah Swara Patra. 10:17-25
Nowadays fundamental scientific researches and practical works are carried out worldwide to identify and use alternative sources and resources of energy carriers in place of oil and gas. In the world practice, to date, there are no technologies and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17995427a259a1f7581d317ad1cd4ca5
https://doi.org/10.37525/sp/2020-2/250
https://doi.org/10.37525/sp/2020-2/250
In the early part of the 20th century, tracking a pilot balloon from the ground with an optical theodolite was one of the few methods that was able to provide information from the upper air. One of the most significant sources of error with this meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d3e22d9c4d2e4717df13f7ee7ea9f10
https://doi.org/10.5194/amt-2021-206
https://doi.org/10.5194/amt-2021-206
Akademický článek
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Publikováno v:
Ironmaking & Steelmaking. 47:713-721
New single snorkel degasser (NSSD) has been developed for vacuum refining of high-efficiency decarburization and desulphurization. Lifting gas modes of the NSSD have three modes: ladle bottom blowi...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86ef246490df45761a2f324b2b7284b6
https://doi.org/10.1080/03019233.2019.1580029
https://doi.org/10.1080/03019233.2019.1580029
Autor:
Felix Ishola, Enesi Y. Salawu, T. Akinpelu, M. A. Fajobi, Christian Bolu, Joseph Azeta, Joy Favour Dirisu
Publikováno v:
Procedia Manufacturing. 35:1135-1140
Contrary to conventional heavier than air (HTA) drones such as helicopters and quad-copters, whereby their lift is aerodynamically created via the air by the motion of an air foil, hot air stays upward using a light lifting gas. This distinctive feat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b3ba6fa0236132c547a3e5779f3875c
https://doi.org/10.1016/j.promfg.2019.06.067
https://doi.org/10.1016/j.promfg.2019.06.067