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 Assessing the applicability of the European standard EN 17037:2018 for office spaces in a cold climateSepulveda Luque, Abel; De Luca, Francesco; Varjas, Toivo; Kurnitski, JarekBuilding and environment2022 / art. 109602 https://doi.org/10.1016/j.buildenv.2022.109602 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS 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 Awareness of BSR municipalities about sustainable urban lighting and green public procurementsKorõtko, Tarmo; Rosin, Argo; Varjas, Toivo; Ahmadiahangar, Roya2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), Madrid, Spain, 9-12 June 2020 : proceedings2020 / 6 p. : ill https://doi.org/10.1109/EEEIC/ICPSEurope49358.2020.9160761 Case study of smart city lighting system with motion detector and remote controlKuusik, Marko; Varjas, Toivo; Rosin, Argo2016 IEEE International Energy Conference (ENERGYCON) : [Leuven, Belgium, 4-8 April 2016]2016 / [5] p. : ill https://doi.org/10.1109/ENERGYCON.2016.7513906 Defining the light-technical parameters and applying the recommended measuring methods for creating the smart crossingsVarjas, Toivo; Möller, Taavi; Rosin, Argo17th International Symposium “Topical Problems in the Field of Electrical and Power Engineering”. Doctoral school of energy and geotechnology. III : Kuressaare, Estonia, January 15-20, 20182018 / p. 111-113 : ill http://ise.elnet.ee/record=b2950028~S2*est Design of performance characteristics on laser treated denim fabricMandre, Nele; Plamus, Tiia; Linder, Angelika; Varjas, Toivo; Majak, Jüri; Krumme, AndresThe materials science = Medžiagotyra2023 / 10 p. : ill https://doi.org/10.5755/j02.ms.33259 Design of performance characteristics on laser treated denim fabric : [conference paper]Mandre, Nele; Plamus, Tiia; Linder, Angelika; Varjas, Toivo; Majak, Jüri; Krumme, AndresGraduate School of Functional Materials and Technology (GSFMT) Scientific Conference : abstracts2022 / p. 36 : ill Graduate School of Functional Materials and Technology (GSFMT) Scientific Conference 2022 Development of new requirements for outdoor advertisement screensVarjas, Toivo18th International Symposium "Topical Problems in the Field of Electrical and Power Engineering". Doctoral School of Energy and Geotechnology III : Toila, Estonia, January 14-19, 2019 : [proceedings]2019 / p. 231-232 : ill https://www.ester.ee/record=b5183874*est Multi-performance optimization of static shading devices for glare, daylight, view and energy considerationDe Luca, Francesco; Sepulveda Luque, Abel; Varjas, ToivoBuilding and environment2022 / art. 109110 https://doi.org/10.1016/j.buildenv.2022.109110 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Research and development of measurement solution and methodology for assessment of light reflection from surfaces = Mõõtelahenduse ja -metoodika uurimine ning arendamine pindadelt valguse peegeldumise hindamiseksVarjas, Toivo2021 https://www.ester.ee/record=b5473279*est https://digikogu.taltech.ee/et/Item/8a29147b-e21f-4273-aa1e-424bce74d20e https://doi.org/10.23658/taltech.60/2021 Road lighting measurement and evaluation of new technologiesVarjas, Toivo; Oorn, ArvoDoctoral School of Energy and Geotechnology II : closing conference of the project : Pärnu, Estonia, January 12-17, 20152015 / p. 158-160 : 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 Static Shading Optimization for Glare Control and DaylightDe Luca, Francesco; Sepulveda Luque, Abel; Varjas, ToivoProceedings of the 39th eCAADe Conference - Towards a new, configurable architecture : University of Novi Sad, Novi Sad, Serbia, 8-10 September 2021. Vol. 22021 / p. 419-428 https://doi.org/10.52842/conf.ecaade.2021.2.419 https://papers.cumincad.org/cgi-bin/works/paper/ecaade2021_230 Conference proceedings at Scopus Article at Scopus Tallinna valgusreostus luubi allRosin, Argo; Varjas, ToivoEhitusEST ehitusest.ee novaator.err.ee2023 / lk. 20-23 https://novaator.err.ee/1609115420/tallinna-valgusreostus-on-koroona-jarel-huppeliselt-kasvanud https://ehitusest.ee/uudis/2023/10/12/tallinna-valgusreostus-luubi-all/ https://www.ester.ee/record=b4442657*est Tänavuse Nobeli füüsikapreemiga tunnustati siniste leedide leiutajaidVarjas, Toivo; Oorn, ArvoElektriala2014 / lk. 8-10 : ill Valgusallikate uued uurimisvõimalused Tallinna TehnikaülikoolisTeemets, Raivo; Varjas, ToivoElektriala2013 / lk. 24-25 Оценка яркости рекламных экранов на оживленных перекресткахJärv, Natalia; Ivask, Jekaterina; Varjas, ToivoЭрго 2014 : Труды Международной научно-практической конференции "Психология труда, инженерная психология и эргономика 2014", 3-5 июля 2014 г2014 / с. 111-116 : ил