Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Vasile, DOBREF"'
Autor:
Vasile Dobref
Publikováno v:
Scientific Bulletin of Naval Academy. 19:202-205
Autor:
Paul Burlacu, Vasile Dobref
Publikováno v:
Scientific Bulletin of Naval Academy, Vol 19, Iss 1, Pp 194-197 (2016)
The possibility of using other sources of electricity than conventional one, on board vessels, i s a highly actual subject. In this respect, this paper presents a simulation on the development of a proper photovoltaic panels configuration used for th
Autor:
Vasile DOBREF
Publikováno v:
Scientific Bulletin of Naval Academy, Vol 19, Iss 1, Pp 202-205 (2016)
A naval propulsion magnetohydrodynamic (M.H.D.) induction is actually a linear induction machine that uses seawater as induced. In seawater occurs an interaction between a magnetic field induced by the progressive currents, resulting an electromagnet
Publikováno v:
Scientific Bulletin of Naval Academy, Vol 19, Iss 1, Pp 154-159 (2016)
This paper is following further development of the common framework model for multi-purpose underwater data collection devices focusing on second generation of simulation techniques VMAX2.0 on Perry-Slingsby ROV simulator. It is addressing physics-ba
Autor:
Vasile Dobref
Publikováno v:
Scientific Bulletin of Naval Academy, Vol 19, Iss 1, Pp 206-209 (2016)
For the next generation, conventional weapon will touch the best performance limits and will became more and more what in what more an important part plans of improvement systems of weapon to the future. Physical laws that govern electromagnetic prop
Autor:
Vasile Dobref, Paul Burlacu
Publikováno v:
Scientific Bulletin of Naval Academy, Vol 19, Iss 1, Pp 160-165 (2016)
This paper presents a short history of data compression and encryption technologies starting with World War I and their possible value today by resurfacing old and forgotten algorithms as an increased security shell possibility for modern data files
Autor:
Vasile Dobref, Petrica Popov
Publikováno v:
International conference KNOWLEDGE-BASED ORGANIZATION. 22:515-519
This paper presents a theoretical model of the hydroelectromagnetic thruster (electromagnetic three-phase induction seawater pump), which was developed from a semi-space model for an infinity conductor, where the electrically fluid - seawater occupie
Publikováno v:
2018 International Conference and Exposition on Electrical And Power Engineering (EPE).
The aim of the paper is to present some particularities of the electricity quality on board ships. The specific vulnerability of the naval power systems is given, first of all, by ship’s power plant and its finite character. Power generation system
Publikováno v:
International conference KNOWLEDGE-BASED ORGANIZATION. 21:679-687
Shortcomings of conventional propeller propulsion can theoretically be removed by using a modern technology - unconventional hydroelectromagnetic propeller or magnetohydrodynamic (MHD thruster), that highlights an application of great interest about
Publikováno v:
International conference KNOWLEDGE-BASED ORGANIZATION. 21:673-678
This paper proposes a new technological solution for the sea observation using an Unmanned Surface Vehicle (USV) or Unmanned Undersea Vehicles (UUV). The term USV refers to any vehicle that operates on the surface of the water without a crew. USVs ha