Determination of heat transfer coefficient from housing surface of a totally enclosed fan-cooled machine during passive coolingShams Ghahfarokhi, Payam; Podgornovs, Andrejs; Kallaste, Ants; Cardoso, Antonio J. Marques; Belahcen, Anouar; Vaimann, Toomas; Asad, Bilal; Tiismus, HansMachines2021 / art. 120 https://doi.org/10.3390/machines9060120 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Microwave reflection properties of building materials in the working environmentKoppel, Tarmo; Haldre, Heldur56th International Riga Technical University Conference "Scientific Conference on Economics and Entrepreneurship SCEE'2015" : proceedings2015 / p. 148-150 : tab

Reducing exposure to radiofrequency electromagnetic fields from wireless networking with laptop computers [Electronic resource]Koppel, Tarmo; Ahonen, Mikko; Vilcane, IneseSCEE 2014 : Scientific Conference on Economics and Entrepreneurship : 55th International Riga Technical University conference : Latvia, Riga, 14-17 October2014 / [2] p. [CD-ROM]

Review of thermal analysis of permanent magnet assisted synchronous reluctance machinesGhahfarokhi, Payam Shams; Kallaste, Ants; Belahcen, Anouar; Vaimann, Toomas; Rassõlkin, AntonPQ2016 : the 10th International Conference 2016 Electric Power Quality and Supply Reliability Conference (PQ) : August 29-31, 2016, Tallinn, Estonia : proceedings2016 / p. 219-224 https://doi.org/10.1109/PQ.2016.7724116

Salt water sprayed paper microwave attenuation in shielding workplacesKoppel, Tarmo; Shishkin, Andrei; Haldre, HeldurRiga Technical University 57th International Scientific Conference : "Scientific Conference on Economics and Entrepreneurship" (SCEE'2016) : proceedings2016 / p. 172-173 : ill