Malgorzata Zalesinska

Dr. Malgorzata Zalesinska

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Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 November 2021 in Energies
Verified
Journal Article
Open access
PDF file
MZMalgorzata Zalesinska
Malgorzata Zalesinska
KWKrzysztof Wandachowicz
Krzysztof Wandachowicz
The pedestrian is the least protected road user. A large number of accidents involving pedestrians occur at pedestrian crossings. Bad lighting or a complete lack of it is one of the causes of accidents in these places. Currently, there are no uniform requirements in Europe for the lighting of pedestrian crossings. Each country is trying to create its system of requirements and assessment of lighting of pedestrian crossings. Measurement procedures and required lighting parameter values often vary significantly across countries. This paper discusses the results of measurements carried out at selected pedestrian crossings using two different measurement grids. The lighting quality at the tested crossings has been assessed based on the lighting requirements in force in two EU countries. In addition, we present the results for the illuminance contrast of a measurement board, representing the silhouette of a pedestrian on a crossing, with the background. Based on the determined contrast, we attempted to verify the lighting conditions using an evaluation system described in the literature, which employs fuzzy logic algorithms.

23 January 2017 in Management Systems in Production Engineering
Verified
Journal Article
Open access
PDF file
APAndrzej Pawlak
Andrzej Pawlak
MZMalgorzata Zalesinska
Malgorzata Zalesinska
The article describes test results that provided the ground to define and evaluate basic photometric, colorimetric and electric parameters of selected, widely available light sources, which are equivalent to a traditional incandescent 60-Watt light bulb. Overall, one halogen light bulb, three compact fluorescent lamps and eleven LED light sources were tested. In general, it was concluded that in most cases (branded products, in particular) the measured and calculated parameters differ from the values declared by manufacturers only to a small degree. LED sources prove to be the most beneficial substitute for traditional light bulbs, considering both their operational parameters and their price, which is comparable with the price of compact fluorescent lamps or, in some instances, even lower.

1 January 2018 in PRZEGLĄD ELEKTROTECHNICZNY
Verified
Journal Article
Closed access
MZMalgorzata Zalesinska
Malgorzata Zalesinska
The basic requirements for non-directional household lamps are set out in Commission Regulations of the European Community. Usually only the initial parameters are verified. Operational parameters, due to the long duration of measurements, are not always controlled. The article presents the results of the initial parameters and lamp lumen maintenance factor, after a specified operational time, of selected non-directional household lamps.

21 September 2018 in ITM Web of Conferences
Verified
Journal Article
Open access
MZMalgorzata Zalesinska
Malgorzata Zalesinska
JZJulita Zablocka
Julita Zablocka
KWKrzysztof Wandachowicz
Krzysztof Wandachowicz
ARAgata Raczak
Agata Raczak
Due to the very high life of LED lamps, amounting to tens of thousands of hours, the life declared by the manufacturer is most often life determined on the basis of the method of forecasting the long term lumen maintenance. Life forecasting is based on operational measurements of the luminous flux drop over a period of at least up to 6000 h every 1000 h and extrapolation of the obtained results with an appropriate exponential curve. The article presents the results of measurements of luminous flux changes in the range of 0 to 9000 h of operation of light sources. The analysis of the obtained results was carried out and the life of the tested lamps was estimated.

21 November 2016 in Occupational Safety – Science and Practice
Verified
Journal Article
Closed access
APAndrzej Pawlak
Andrzej Pawlak
MZMalgorzata Zalesinska
Malgorzata Zalesinska