Balametov A.
Azerbaijan Research and Design- Survey Institute of Energy
Isayeva T.
Azerbaijan State University of Oil and Industry
Salimova A.
Azerbaijan Research and Design- Survey Institute of Energy

Abstract
When corona wires, partial discharges and corona of insulators and fittings, sparking in the contacts of linear fittings, radio interference occurs. The harmful effects of a person’s stay in a strong electric field depend on the field strength E and on the duration of its exposure. Electromagnetic compatibility of technical means (EMC) is the ability of a technical means to function with a given quality in a given electromagnetic environment and not create unacceptable electromagnetic interference to other technical means. Corona discharge on power lines interferes with radio and television reception, as well as acoustic noise. Currently, there is no software for assessing the electromagnetic compatibility of overhead lines. Mathematical modeling of the influence of corona wires of overhead lines, electromagnetic interference, corona discharge, radio interference in wires is considered. Radio interference on overhead lines can occur both due to corona on wires, and due to partial discharges and corona on insulators, breakdown or overlap of defective insulators, corona on linear fittings and spacers of split-phase wires, as well as due to sparking in poor contacts of linear fittings, spacers wires and between insulators. The EMC software was developed to assess the environmental impact of high voltage AC transmission lines. On the example of a 500 kV overhead line results of simulation are represented.

Keywords: Overhead lines, corona losses, acoustic noise, radio interference, electromagnetic compatibility

Trofimov I.
PhD, associate professor of the Department of Chemistry and Chemical Technology, National Aviation University, Kyiv, Ukraine
Svyryd M.
PhD, associate professor of the Department of Aircraft Design, National Aviation University, Kyiv, Ukraine
Tsyhanenko V.
PhD candidate of education by specialty «Chemical technologies and engineering», National Aviation University, Kyiv, Ukraine
Makarov A.
Master degree candidate of education by specialty «Chemical technologies of alternative energy sources», National Aviation University, Kyiv, Ukraine

Abstract
The article discusses the issue of antiwear properties of traditional and alternative diesel fuels. The main goal of this work was the theoretical and experimental studies on the effect of alternative biodiesel fuels (on a plant basis) on the change in the antiwear properties of traditional diesel fuels. Also, the goal was to study the effect of the magnetic field on the antiwear properties of diesel and alternative diesel fuels. Experimental studies have been conducted for the antiwear properties of traditional and alternative diesel fuels based on biocomponents obtained from rye oil.

 Keywords: antiwear properties, diesel fuel, biocomponent, rye oil, magnetic field, friction, wear.

Mahmudova S.
Nakhchivan State University
Ajdarova N.
Nakhchivan University

Abstract
The article conducted an examination of different types of data and data analysis and their main stages. Data analysis is the process of researching, manipulating and modeling data to uncover useful concepts and insights that can be used to make business decisions. There are different types of information analysis that organizations can use for their own purposes and techniques. This includes analytics and generalized descriptive analytics. Each type serves a different purpose and offers unique information concepts. Furthermore, data analysis is usually divided into stages such as data collection, data processing, data analysis and information visualization. Understanding the basic stages of these types and data analytics can help better leverage businesses and gain competitive advantage.

 Keywords: data, data analysis, data preparing, data modelling, data visualization

Nguyen Thanh Hung
Hochiminh City University for Natural Resources and Environment. HoChiMinh, Vietnam
Tran Thi Tham
Vietnam National Forestry University. Hanoi, Vietnam

Abstract

The study shows the effective application of sentinel-2 images in analyzing the current state of urban surface water drainage in Bien Hoa city. The extraction of each component of water, vegetation and impervious surface based on NDVI, MNDWI and NDBI indexes has contributed very effectively in the formation of the composite cover map. Overall classification accuracy T = 0.92, Kappa coefficient = 0.87. Asymptotic analysis with the QGIS tool was used to determine the minimum distance from any point in the urban area to the natural permeable surface. The isolation of urban cover surface helps to determine the ratio of impervious surface and natural permeable surface within Bien Hoa city wards. The results of asymptotic analysis have shown that the central wards of Bien Hoa have 3-5 times higher access distance to the natural permeable surface than the suburban wards, corresponding to the ratio of impervious surface area/natural permeable surface between them. The coefficient of variation according to the statistical results of asymptotic distance is an important basis for evaluating the degree of interlacing of areas with impervious surfaces with areas with natural permeable surfaces. Research results have located the spatial distribution and characteristics of areas with high potential for flooding in Bien Hoa city, those are the downtown areas with an impervious surface ratio >60% and the access distance to the naturally permeable surface >120m. This result will be very useful in sustainable urban drainage planning.

 Keywords: Sustainable urban drainage; Sentinel-2; GIS; Urban planning; Drainage system.