Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Aleksandrs Urbahs"'
Autor:
Aleksandrs Urbahs, Sergey Kravchenko, Margarita Urbaha, Kristine Carjova, Natalja Panova, Rafal Chatys
Publikováno v:
Aviation, Vol 25, Iss 2, Pp 73-78 (2021)
The paper presents the air-launch system enabling the delivery of small satellites into low Earth orbit. One of the most important advantages of the concept is its cost. Generally, the paper proves that launching a carrier from an aerial platform (a
Externí odkaz:
https://doaj.org/article/01e6d9dc3a8e40388f077d89188034ea
Publikováno v:
Aviation, Vol 21, Iss 2 (2018)
The study is devoted to a perspective diagnostic method, which makes it possible to deal with diagnostic tasks – the acoustic non-destructive inspection method based on acoustic emission (AE) signal parameter analysis. The practical use of this met
Externí odkaz:
https://doaj.org/article/9b2628626f234239893acafb790a8cf0
Publikováno v:
Aviation, Vol 21, Iss 2 (2018)
The main problem of sea aquatorium monitoring is the surveillance of large areas of the sea surface and the presence of many moving ships with different parameters. A methodology for the optimization of a Remotely Piloted Aircraft’s (RPA) route is
Externí odkaz:
https://doaj.org/article/277d1aa24def4ec5b9e7fd7b0527a517
Publikováno v:
Aviation, Vol 21, Iss 1 (2017)
Micromechanics of composite materials’ failure has been investigated under static loading by means of acoustic emission (AE) method. The results showed that for samples made of fiberglass with transverse fibers with respect to the applied load, the
Externí odkaz:
https://doaj.org/article/83f4dca739a0464f9cb88b99c7914871
Autor:
Aleksandrs Urbahs, Ieva Jonaite
Publikováno v:
Aviation, Vol 17, Iss 4 (2013)
Micro-UAVs (unmanned aerial vehicles) with a total weight below 5 kg are interesting alternative carriers for agricultural applications. Compared to standard airborne aerial surveys, UAVs are much more flexible and weather independent. As a result, m
Externí odkaz:
https://doaj.org/article/c6be603924eb42b4ae23430f69d78b09
Publikováno v:
Aviation, Vol 17, Iss 4 (2013)
This work analyses the characteristics of functional coatings obtained by vacuum ion-plasma sputtering. These coatings have three-layer multiphase structure created as a result of condensing aluminium and titanium according to a certain programme. Th
Externí odkaz:
https://doaj.org/article/8862b3dc637c451cb137d92c71792877
Publikováno v:
Journal of Mechanical Science and Technology. 34:2455-2468
This study aims to develop a simplified approach for the design of high-speed wind tunnels, operating within the range of Mach 1-4. The study is conducted in two stages; design stage-I consists of the basic parts of a high-speed wind tunnel, i.e. tes
Publikováno v:
Environmental and Climate Technologies, Vol 24, Iss 1, Pp 1-22 (2020)
The objective is to carry out an analysis of remote oil spill detection using multi Remote Piloted Aircraft (RPA). A multi-RPA system provides reliable detection of an oil spill with significant advantages over other existing single RPA methods. The
Autor:
Rafał Chatys, Sergey Kravchenko, Aleksandrs Urbahs, Natalja Panova, Margarita Urbaha, Kristine Carjova
Publikováno v:
Aviation; Vol 25 No 2 (2021); 73-78
Aviation, Vol 25, Iss 2, Pp 73-78 (2021)
Aviation, Vol 25, Iss 2, Pp 73-78 (2021)
The paper presents the air-launch system enabling the delivery of small satellites into low Earth orbit. One of the most important advantages of the concept is its cost. Generally, the paper proves that launching a carrier from an aerial platform (a
Publikováno v:
Procedia Computer Science. 149:398-405
In maritime navigation, one of the most important tools for each navigator at present time is the Electronic Cartographic Display and Information System (ECDIS), which must comply with the requirements of the International Maritime Organization (IMO)