Analysis and application of light-technical parameters to assure pedestrian safety on roadway crossings with additional lightingVarjas, Toivo; Armas, Jelena; Rosin, Argo16th International Symposium "Topical Problems in the Field of Electrical and Power Engineering. Doctoral School of Energy and Geotechnology III" : Pärnu, Estonia, January 16-21, 20172017 / p. 148-151 : ill http://www.ester.ee/record=b4650094*est Assessment of autonomous power supply system for light sensor of illumination measurement testbenchTetervenok, Oleg; Galkin, Ilja; Armas, JelenaRiga Technical University 53rd International Scientific Conference dedicated to the 150th anniversary and The 1st Congress of World Engineers and Riga Polytechnical Institute : RTU Alumni, Paper 10 of Subsection of Power Electronic Converters and Applications2012 / 6 p. : ill Assessment of pedestrian crossings measuring parameters and implementation of new measuring methods in EstoniaVarjas, Toivo; Kuusik, Marko; Armas, Jelena; Rosin, Argo59th Annual International Scientific Conference on Power and Electrical Engineering : November 12, 13, 2018, Riga Technical University (RTUCON) : conference proceedings2018 / 4 p. : ill https://doi.org/10.1109/RTUCON.2018.8659821 Autonomous power supply system for light sensor of illumination measurement test benchTetervenok, Oleg; Galkin, Ilja; Armas, JelenaScientific Journal of Riga Technical University. Electrical, control and communication engineering2012 / p. 30-35 : ill A concept of using LED lamps in conjunction with traditional light sourcesMilaševski, Irena; Armas, Jelena; Teemets, Raivo10th International Symposium "Topical Problems in the Field of Electrical and Power Engineering”. Doctoral School of Energy and Geotechnology II : Pärnu, Estonia, January 10-15, 20112011 / p. 238-241 : ill Distance encoding waves for identification of lighting failuresGalkin, Ilja; Suzdalenko, Alexander; Armas, JelenaBEC 2012 : 2012 13th Biennial Baltic Electronics Conference : proceedings of the 13th Biennial Baltic Electronics Conference : October 3-5, 2012, Tallinn, Estonia2012 / p. 227-230 : ill Emergency escape lighting systemsArmas, JelenaTarptautines konferencijos Elektros ir valdymo technologijos - 2006 : pranešimu medžiaga = Proceedings of International Conference Electrical and Control Technologies - 20062006 / p. 396-400 : ill Emergency lightingArmas, Jelena; Laugis, Juhan3rd International Symposium "Topical Problems of Education in the Field of Electrical and Power Engineering" : Doctoral School of Energy and Geotechnology : Kuressaare, Estonia, January 16-21, 20062006 / p. 138-144 : ill Hädavalgustuse projekteerimineArmas, JelenaElektriala2007 / 1, lk. 30-31 : ill Increase pedestrian safety by critical crossroads : lighting measurements and analysis [Electronic resource]Armas, Jelena; Laugis, JuhanEPE 2007 : 12th European Conference on Power Electronics and Applications : 2-5 September 2007, Aalborg, Denmark2007 / [10] p. [CD-ROM] LED lighting use in street light design technologiesMilaševski, Irena; Armas, Jelena; Teemets, Raivo9th International Symposium "Topical problems in the field of electrical and power engineering". Doctoral school of energy and geotechnology. II : Pärnu, Estonia, June 14-19, 20102010 / p. 145-150 : ill Lighting for museumsArmas, Jelena10th International Symposium "Topical Problems in the Field of Electrical and Power Engineering”. Doctoral School of Energy and Geotechnology II : Pärnu, Estonia, January 10-15, 20112011 / p. 76-79 : ill Obtrusive light, light pollution, and glare produced by outdoor lightingArmas, Jelena6th International Symposium "Topical Problems in the Field of Electrical and Power Engineering" : Doctoral School of Energy and Geotechnology : [Kuressaare, January 12-17, 2009]2009 / p. 98-103 : ill Quality criterion of road lighting measurement and exploringArmas, Jelena2008 http://www.ester.ee/record=b2431306*est Quality in artificial lighting, good lighting for safety on roadsArmas, Jelena; Laugis, Juhan5th International Symposium "Topical Problems in the Field of Electrical and Power Engineering". Doctoral School of Energy and Geotechnology : Kuressaare, January 14-19, 20082008 / p. 32-38 : ill Research and development of electronic ballasts for smart lighting systems with light emitting diodes = Tarkades valgustussüsteemides kasutatavate LED-valgustite elektrooniliste ballastseadmete uurimine ja arendamineMilaševski, Irena2012 Road lighting measurements and analysisArmas, Jelena; Laugis, JuhanElectrical and control technologies : proceedings of the 2nd International Conference on Electrical and Control Technologies : ECT-2007 : May 3-4, 2007, Kaunas, Lithuania2007 / p. 30-36 : ill Road safety by improved road lighting : road lighting measurements and analysisArmas, Jelena; Laugis, Juhan4th International Symposium Topical Problems of Education in the Field of Electrical and Power Engineering. Doctoral School of Energy and Geotechnology : Kuressaare, Estonia, January 15-20, 20072007 / p. 83-90 : ill Short-circuit currents calculation algorithm in street lighting networksArmas, Jelena; Varjas, Toivo; Ivanov, Aleksandr16th International Symposium "Topical Problems in the Field of Electrical and Power Engineering. Doctoral School of Energy and Geotechnology III" : Pärnu, Estonia, January 16-21, 20172017 / p. 7-10 : ill http://www.ester.ee/record=b4650094*est Short-circuit currents calculations in street lighting networksArmas, Jelena; Ivanov, Aleksandr; Varjas, Toivo2017 IEEE 58th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) : proceedings : Latvia, Riga, 12-13 October, 20172017 / [9] p. : ill https://doi.org/10.1109/RTUCON.2017.8124758 Tunnel lightningArmas, Jelena; Laugis, Juhan2nd International Symposium "Topical Problems of Education in the Field of Electrical and Power Engineering" : Kuressaare, Estonia, January 17-22, 20052005 / p. 73-79 : ill Система управления тоннеляArmas, Jelena; Laugis, JuhanAutomatika ir valdymo technologijos - 2004 = Automation and Control Technologies - 2004 : proceedings of the International Conference2004 / p. 46-50 : ill