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3 results on '"Illia Zhydenko"'

1. Utilizing an Arduino Uno-Based System with Integrated Sensor Data Fusion and Filtration Techniques for Enhanced Air Quality Monitoring in Residential Spaces

Author

Ivan Rudavskyi, Halyna Klym, Yuriy Kostiv, Ivan Karbovnyk, Illia Zhydenko, Anatoli I. Popov, and Marina Konuhova

Subjects
analysis, air quality, monitoring, temperature, humidity, sensors, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
Abstract

This study presents an air quality monitoring system that employs the Arduino Uno microcontroller. The system is augmented with a moving average filter and data fusion techniques from BME680 and CCS811 sensors, which are designed to process and combine data from these sensors. The system was tested and analyzed empirically across a range of residential environments in order to validate its efficacy. The findings indicated that the typical IAQ level in a bedroom was approximately 20 units. However, this level increased significantly, reaching 140 units, within minutes after the introduction of a 17% perfume spray. In contrast, the use of an aromatic diffuser resulted in a smaller increase in IAQ to 40 units, which returned to normal levels after ventilation. Moreover, the analysis demonstrated that the kitchen and bathroom exhibited inferior air quality in comparison to the bedroom. This was evidenced by elevated VOC and humidity levels, which were observed to be 10–20% higher due to the combined effects of household activities and inadequate ventilation. This study makes a significant contribution to the field of air quality monitoring by proposing a solution that employs sensor technology and data processing methods to enhance the quality of life within residential spaces.

Published
2024
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2. Impedance analysis of PEDOT:PSS/CNT composites below percolation threshold

Author

Dmytro Lukashevych, Illia Zhydenko, Halyna Klym, Dmytro Chalyy, and Ivan Karbovnyk

Subjects
Materials science, Polymer nanocomposite, Materials Science (miscellaneous), 02 engineering and technology, Carbon nanotube, Conductivity, 010402 general chemistry, 01 natural sciences, law.invention, Condensed Matter::Materials Science, PEDOT:PSS, law, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, Composite material, Nanocomposite, Percolation threshold, Cell Biology, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, Dielectric spectroscopy, Condensed Matter::Soft Condensed Matter, Equivalent circuit, 0210 nano-technology, Biotechnology
Abstract

Electrical responses of pre-percolation PEDOT:PSS polymer 30 micron thick films with incorporated single-walled carbon nanotubes were studied by means of impedance spectroscopy technique. The quantitative description of conductivity features is attempted using equivalent circuit modeling. The proposed model is applied to the experimentally investigated nanocomposite systems with different loadings of the nanofiller.

Published
2021

3. The impact of temperature on electrical properties of polymer-based nanocomposites

Author

Illia Zhydenko, Halyna Klym, A.A Popov, Dmytro Lukashevych, Ivan Karbovnyk, Dmytro Chalyy, and Sergei Piskunov

Subjects
010302 applied physics, chemistry.chemical_classification, Range (particle radiation), Materials science, Thin layers, Nanocomposite, Physics and Astronomy (miscellaneous), General Physics and Astronomy, multi-walled carbon nanotubes, Polymer, Carbon nanotube, 7. Clean energy, 01 natural sciences, law.invention, polymer based nanocomposites, chemistry, law, 0103 physical sciences, NATURAL SCIENCES:Physics [Research Subject Categories], Composite material, 010306 general physics, low-temperature hysteresis
Abstract

This work was supported by National Research Foundation of Ukraine, project 2020.02/0217. IK would also like to thank VIAA, State Education Development Agency for Latvian state fellowship. HK would like to thank Ministry of Education and Science of Ukraine, project for young researchers No. 0119U100435. In addition, SP and AAP are thankful for financial support from Latvian Council of Science via grant lzp-2018/2-0083. HK and AAP are grateful for the support from the COST Action CA17126., The paper discusses the results of temperature studies of polymer-based nanocomposites obtained by incorporating multi-walled carbon nanotubes in thin layers of poly(3,4-ethylenedioxythophene):poly(4-styrenesulfonate), specifically focusing on interesting features in the dependencies of electrical properties across the wide range of temperatures from ambient one down to 10 K. --//-- This is the preprint version of the following article: I. Karbovnyk, H. Klym, S. Piskunov, A. A. Popov, D. Chalyy, I. Zhydenko and D. Lukashevych,The impact of temperature on electrical properties of polymer-based nanocomposites, Low Temperature Physics, 46, 1231 (2020), DOI https://doi.org/10.1063/10.0002479, which has been published in final form at https://aip.scitation.org/doi/10.1063/10.0002479., National Research Foundation of Ukraine, project 2020.02/0217; VIAA; Ministry of Education and Science of Ukraine, project for young researchers No. 0119U100435; Latvian Council of Science via grant lzp-2018/2-0083; COST Action CA17126; Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART².

Published
2020

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