Zobrazeno 1 - 10
of 7 617
pro vyhledávání: '"Vacuum chamber"'
Autor:
Alexey A. Demidov, Mikhail N. Piganov
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 27, Iss 2, Pp 69-76 (2024)
Background. The relevance of the topic of this work is due to the need to improve the reliability and quality of the assessment of the stability of the onboard electronic equipment of spacecraft to electrostatic discharges. Aim. Investigation of t
Externí odkaz:
https://doaj.org/article/fed7fb239b8b4e32a21456e1af334677
Autor:
Łukasz Nowak, Piotr Borkowski
Publikováno v:
Energies, Vol 17, Iss 10, p 2339 (2024)
This article describes the development of current sensors used in DCU-type high-speed circuit breakers. DCU-type circuit breakers use the principle of turning off a constant short-circuit current by means of countercurrent. The article presents a new
Externí odkaz:
https://doaj.org/article/613736eea204422ca1c4803aa38e2e95
Publikováno v:
Agriculture, Vol 14, Iss 3, p 397 (2024)
Vacuum degassing of seeds is a basic preliminary stage of the treatment process to improve the viability of seeds of various crops. In this work, the degassing process of corn seeds was experimentally and numerically analyzed by removing air or other
Externí odkaz:
https://doaj.org/article/5b8791faf1bb4fbd836370dd8d862e9e
Autor:
Andreas Neumann, Michaela Brchnelova
Publikováno v:
Aerospace, Vol 11, Iss 3, p 177 (2024)
Electric space propulsion is a technology that is used in a continuously increasing number of spacecrafts. The qualification of these propulsion systems has to run in ground-based test facilities which requires long testing times and powerful pumping
Externí odkaz:
https://doaj.org/article/68a8f43ea21b48a78c84b0224769a4fd
Design and Validation of a Photoelectric Current Measuring Unit for Lunar Daytime Simulation Chamber
Publikováno v:
Aerospace, Vol 11, Iss 1, p 69 (2024)
Charging of the lunar surface induced by solar radiation can potentially threaten in situ resource utilization. Associated issues include dust adhesion and material degradation. Photoelectric currents are the primary cause of surface charging. This w
Externí odkaz:
https://doaj.org/article/a1f41e1758e1482cbb5074b2dc430c07
Akademický článek
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Publikováno v:
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, Vol 20, Iss 3, Pp 49-56 (2021)
Testing of prototypes of equipment is the most important stage of their development. The article considers a low-power high-frequency ion engine RD0310 which was manufactured and tested at the production base of the KBHA joint-stock company. The test
Externí odkaz:
https://doaj.org/article/c9e4c45872a44cc98c2b964fd1acbb74
Publikováno v:
EPJ Techniques and Instrumentation, Vol 8, Iss 1, Pp 1-19 (2021)
Abstract Electric space propulsion thrusters only produce low thrust forces. For the fulfillment of a space mission this implies long thruster runtimes, and this entails long qualification times on ground. For such long testing times, a ground facili
Externí odkaz:
https://doaj.org/article/ae0e0e52c21c4dcfa967bf5ec9e6dd37
Akademický článek
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Akademický článek
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