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360 results on '"Wojcik, Waldemar"'

3. Research of Efficiency of Information Technology for Creation of Semantic Structure of Educational Materials

Author

Barmak, Olexander, Krak, Iurii, Mazurets, Olexander, Pavlov, Sergey, Smolarz, Andrzej, Wojcik, Waldemar, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Lytvynenko, Volodymyr, editor, Babichev, Sergii, editor, Wójcik, Waldemar, editor, Vynokurova, Olena, editor, Vyshemyrskaya, Svetlana, editor, and Radetskaya, Svetlana, editor

Published
2020
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4. Hybrid Methods of GMDH-Neural Networks Synthesis and Training for Solving Problems of Time Series Forecasting

Author

Lytvynenko, Volodymyr, Wojcik, Waldemar, Fefelov, Andrey, Lurie, Iryna, Savina, Nataliia, Voronenko, Mariia, Boskin, Oleg, Smailova, Saule, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Lytvynenko, Volodymyr, editor, Babichev, Sergii, editor, Wójcik, Waldemar, editor, Vynokurova, Olena, editor, Vyshemyrskaya, Svetlana, editor, and Radetskaya, Svetlana, editor

Published
2020
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6. OPTIMIZING TIME SERIES FORECASTING: LEVERAGING MACHINE LEARNING MODELS FOR ENHANCED PREDICTIVE ACCURACY.

Author

Wojcik, Waldemar, Shayakhmetova, Assem, Akhmetova, Ardak, Abdildayeva, Assel, and Nurtugan, Galymzhan

Subjects
MACHINE learning, RANDOM forest algorithms, DECISION trees, TECHNOLOGICAL innovations, TIME series analysis
Abstract

Copyright of Informatics Control Measurement in Economy & Environment Protection / Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska is the property of Lublin University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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16. DEVELOPMENT OF A THERMODYNAMIC MODEL FOR OPTIMIZATION OF PROCESSES IN CROP PRODUCTION.

Author

Mamyrbayev, Orken, Wojcik, Waldemar, Titova, Nataliia, Pavlov, Sergii, Oralbekova, Dina, Aitkazina, Assel, and Zhumazhan, Nurdaulet

Subjects
AGRICULTURAL productivity, AGRICULTURAL processing, TEMPERATURE control, HEAT equation, MANUFACTURING processes, TOMATOES
Abstract

The agricultural sector faces serious challenges related to climate change. These changes have the potential to reduce yields and food security, highlighting the importance of understanding and managing temperature dynamics. This work is the result of development a thermodynamic model that investigates the dynamics of temperature balance through heat energy transfer. A scheme of rheological heat exchange of an object with an insulated surface and graphs of irreversible rheological transformations are proposed. The main equation of heat exchange with a chemical reaction is given and the equation of the speed of heat energy transfer along the length of the object is derived. Further development of physical-mathematical models of the transformation of thermal energy into a set of states of the object is proposed. The experimental results fully correlate with the heat transfer equation. Samples with tomato seeds were irradiated with a photon irradiator with wavelengths of blue 450 nm, green 550 nm, red 650 nm with an exposure of 12/24 h. As a result, 90 % under the influence of the red spectrum of the photon irradiator for 24 h, which is 24 % more than the control sample. This will make it possible to assess the general temperature regime of agricultural objects and optimize the heating process. This study reveals the essence of temperature regulation at agricultural facilities using a thermodynamic model, which not only takes into account heat exchange, but also includes the influence of chemical reactions. The proposed thermodynamic model and associated equations provide a foundation for future research and practical applications that will ultimately benefit the agricultural industry, global food production. [ABSTRACT FROM AUTHOR]

Published
2023
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20. Information medical fuzzy-expert system for the assessment of the diabetic ketoacidosis severity on the base of the blood gases indices

Author

Nizhynska-Astapenko, Zorina, primary, Pavlov, Sergey, additional, Vlasenko, Oleg, additional, Wojcik, Waldemar, additional, Vlasenko, Maryna, additional, Chaikovska, Olga, additional, Pavlov, Volodymyr S., additional, Orazayeva, Ainur, additional, Shevchuk, Katerina, additional, and Vuzh, Tetiana, additional

Published
2021
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22. Measurement of Linear Parameters of Dielectric Filaments Based on the Corona Discharge

Author

Tergeussizova, Aliya S., Wojcik, Waldemar, Romaniuk, Ryszard, Aitchanov, Bekmurza H., Toygozhinova, Aynur Zh, Bakhtaev, Shabden A., and Mussapirova, Gulzada D.

Subjects
sense organs
Abstract

On the basis of a unipolar corona discharge, a method of non-contact and continuous measurement of linear parameters of thin and ultra-thin dielectric fibres and optical fibres (10 to 125 microns) in the process of their manufacture was developed. The measurement method differs from the commonly known methods by high accuracy and reliability of measurement and resistance to changes in the electrical characteristics of the discharge gap and the state of ambient air.

Published
2021

31. Development of Data-mining Technique for Seismic Vulnerability Assessment.

Author

Wojcik, Waldemar, Karmenova, Markhaba, Smailova, Saule, Tlebaldinova, Aizhan, and Belbeubaev, Alisher

Subjects
*DATA analysis, *EARTHQUAKE hazard analysis, *MACHINE learning, *ALGORITHMS, *RANDOM forest algorithms
Abstract

Assessment of seismic vulnerability of urban infrastructure is an actual problem, since the damage caused by earthquakes is quite significant. Despite the complexity of such tasks, today's machine learning methods allow the use of "fast" methods for assessing seismic vulnerability. The article proposes a methodology for assessing the characteristics of typical urban objects that affect their seismic resistance; using classification and clustering methods. For the analysis, we use kmeans and hkmeans clustering methods, where the Euclidean distance is used as a measure of proximity. The optimal number of clusters is determined using the Elbow method. A decision-making model on the seismic resistance of an urban object is presented, also the most important variables that have the greatest impact on the seismic resistance of an urban object are identified. The study shows that the results of clustering coincide with expert estimates, and the characteristic of typical urban objects can be determined as a result of data modeling using clustering algorithms. [ABSTRACT FROM AUTHOR]

Published
2021
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32. Corona Discharge Based Meters for Manufacturing of Conducting Microwires.

Author

Tergeussizova, Aliya S., Bakhtaev, Shabden A., Wojcik, Waldemar, Aitchanov, Bekmurza H., Mussapirova, Gulzada D., and Toygozhinova, Aynur Zh.

Subjects
CORONA discharge, ELECTRODES, TRANSDUCERS, ELECTRIC meters, ELECTRONIC pulse techniques
Abstract

The wide variety of electrode shapes and their arrangement relative to each other, as well as the possibility of corona discharge in the ambient air, have created prerequisites for the development of a number of new methods and corona discharge transducers designed to measure microwire parameters and linear dimensions of various objects. The principally new noncontact control method is based on the dependence of the corona discharge current value on the diameter of the corona wire placed inside the discharge chamber. This paper provides an overview of this method. [ABSTRACT FROM AUTHOR]

Published
2021
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39. RF front-end for long distance WiFi communication

Author

Romaniuk, Ryszard S., Smolarz, Andrzej, Wojcik, Waldemar, Hanasz, Stanisław, Kasprowicz, Grzegorz H., Poźniak, Krzysztof T., Zabołotny, Wojciech M., Wawrzyniak, Zbigniew M., Wojeński, Andrzej, Mielnik, Dariusz, Brawata, Sebastian, Mazurek, Paweł, Sienkiewicz, Piotr, Rosiński, Wojciech, Wereszko, Błażej, Grzeczka, Agnieszka, Mazurek, Gustaw, Grenda, Bogdan, Majdan, Paweł, and Stobiecki, Paweł

Published
2021
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49. Optoimmittance converters

Author

Romaniuk, Ryszard S., Smolarz, Andrzej, Wojcik, Waldemar, Lishchynska, Ludmyla, Sapogov, Mykyta, Komada, Paweł, Begaliyeva, Kalamkas, Kalimbetov, Galim, and Omiotek, Zbigniew

Published
2021
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