scholarly journals Change in the agrochemical properties of soils and the productivity of the wheel under the influence of electromagnetic waves

2021 ◽  
Vol 4 (1) ◽  
pp. 62-68
Author(s):  
Yuldashev Gulom ◽  
Marupov Azizxon Abbosxonovich
Keyword(s):  
Electromagnetic Waves ◽  
Anthropogenic Impact ◽  
Negative Impact ◽  
Power Lines ◽  
Economic Systems ◽  
Protection Zones ◽  
Agrochemical Properties ◽  
The World ◽  
Overhead Power Lines ◽  
High Voltage Power Lines

In recent years, in the world, the anthropogenic impact on the soil, entailing various changes in its properties, is becoming more severe. Especially it is necessary to note the lands located on the boundaries of the protection zones of linear objects. This article studies the agrochemistry of soils that are under zones and linear protection objects and the effect of electric waves on wheat productivity. Overhead power lines have a negative impact on the environment, in particular on its ecological, social, and economic systems due to the high intensity of the electromagnetic field around the lead wires. High-voltage power lines do not significantly affect the content of humus and nutrients.

scholarly journals THE ANALYSIS OF LANDS IN SECURITY ZONES OF HIGH-VOLTAGE POWER LINES (POWER LINE) ON THE EXAMPLE OF THE FERGANA REGION

2020 ◽  
pp. 55-58
Author(s):  
Abdullayev Ibrohim Numanovich ◽  
Marupov Azizxon Abbosxonovich
Keyword(s):  
Land Use ◽  
Real Estate ◽  
High Voltage ◽  
Transmission Lines ◽  
Power Transmission ◽  
Negative Impact ◽  
Time Frame ◽  
Power Lines ◽  
Power Transmission Lines ◽  
High Voltage Power Lines

Practice shows that the lack or late receipt of information with special conditions for the use of territories often has a negative impact not only on the budget and time frame for the construction of a real estate facility, but also on the fate of the built facility in general. The protection areas of underground and above-ground engineering communications play an important role for the future in land use. And also, when using these lands for agricultural needs, with the correct organization of cadastral relations represents the relevance of the issue under study. In the present, as an example, a section of high-voltage power transmission lines (power lines) of 1 km length is presented. KEY WORDS: security zones, land plot, information about zones, high-voltage zones, power transmission lines, pipelines, gas pipelines, bonality score, engineering networks, construction of buildings and structures.

scholarly journals A Theoretical Model for Ore Mining Waste Management with regard to Pollution of Food Webs in Water Bodies

2019 ◽  
Vol 2 (1) ◽  
pp. 48-50
Author(s):  
Jan Stenis ◽  
William Hogland
Keyword(s):  
Food Webs ◽  
Negative Impact ◽  
Mining Waste ◽  
Economic Systems ◽  
Mining Wastes ◽  
Water Shortages ◽  
Optimal Production ◽  
Use Of Resources ◽  
The World ◽  
Comprehensive Picture

Dam disasters occur sometimes frequently around the world as they did recently in 2015 and 2019 in Minas Gerais, Brazil. As a result, hundreds of families were displaced, and many cities suffered from water shortages. The study aimed to reduce ore mining waste pollutions in rivers and ocean currents and therefore mitigate their impact on the food webs. A model based on the equality principle named EUROPE (Efficient Use of Resources for Optimal Production Economy) was used to estimate shadow costs of economic systems. It was applied to ore mining wastes management in order to mitigate their negative impact on rivers and oceans. As a result, it gave a comprehensive picture of that management system in economic, technical as well as environmental terms.

scholarly journals Review of deaths and behavior of large birds of prey on power grid facilities in Tatarstan and Udmurtia (Russia), problems of modernization of 6–10 kV overhead power lines

2021 ◽  
pp. 18-41
Author(s):  
Rinur H. Bekmansurov ◽  
Keyword(s):  
Negative Impact ◽  
Power Grid ◽  
Power Lines ◽  
Birds Of Prey ◽  
Time Interval ◽  
Electric Grid ◽  
Grid Environment ◽  
Breeding Grounds ◽  
Aquila Heliaca ◽  
Overhead Power Lines

The report analyzes the deaths of large birds of prey on power grid facilities of Tatarstan previously published in the literature since 2012 and additional ones, identified since 2019, including in the neighboring region – Udmurt Republic. Analysis of the data shows that immature Imperial Eagles (Aquila heliaca) up to 3 years old (n=11) died on the 6–10 kV power lines dangerous for birds. The percentage of fledglings that died near breeding territories after leaving their nests was 81.8% (n=9); one bird died in its second year of life and one bird died in its third year. The death of fledglings was identified in 8 breeding areas (in one of them twice), which is 3.9% of all known breeding areas of the Imperial Eagle in Tatarstan by the end of 2021 (n=205) and about 7.2% of 111 breeding areas in 16 administrative districts of southeastern Tatarstan where oil production is taking place. Two out of six fledglings, for which a time interval of death was established, died in the second half of August, and 2 eagles also died in the first and second halves of September. Distances from precisely known nests to locations where the fledglings died ranged from 0.26 to 11.7 km, 2.56 km on average (n=7). In 57.1% of cases deaths occurred at distances less than 1 km (from 260 to 600 m), and in 28.6% of cases at distances from 2 to 3 km. Observations of the behavior of imperial eagles in breeding grounds show a certain selectivity, namely avoidance of the most dangerous power lines. Adaptation of imperial eagles to the electric grid environment continues – 3 new breeding territories on the electric poles of high-voltage power lines were found. Two cases of death of immature White-Tailed Eagles (Haliaeetus albicilla) were identified on 6–10 kV power lines dangerous for birds deep in the forestland on narrow forest cleared strips in Tatarstan and Udmurtia, as well as the Steppe Eagle (Aquila nipalensis) in Udmurtia. Illegal exploitation and even construction of new 6–10 kV power lines dangerous for birds continues. Despite the measures taken to protect birds from death in the electric grid environment, the rate and quality of these measures are such that in the near future power lines will have a negative impact on eagles in the native area as they do now.

scholarly journals Preterm birth among women living within 600 meters of high voltage overhead Power Lines: a case-control study

2017 ◽  
Vol 55 (3) ◽  
pp. 145-150 ◽  
Author(s):  
Taktom Sadeghi ◽  
Amirmasoud Ahmadi ◽  
Maryam Javadian ◽  
Sayyed Asghar Gholamian ◽  
Mouloud Agajani Delavar ◽  
...  
Keyword(s):  
Preterm Birth ◽  
High Voltage ◽  
Birth Defect ◽  
Case Control Study ◽  
Case Control ◽  
Power Lines ◽  
Spontaneous Preterm Birth ◽  
Overhead Power Lines ◽  
High Voltage Power Lines ◽  
Control Study

Abstract Aim. The issue of preterm birth due to exposure to magnetic fields from power lines is unclear. Exposure to electromagnetic field in uterus has been hypothesized as possible preterm birth. The aim of the present study was to determine whether living closer to high voltage power lines increased the risk of preterm labor. Methods. In a nested case-control study, 135 cases of singleton live spontaneous preterm birth in Rohani hospital, Babol, Iran, during the period between 2013 and 2014 were studied. The 150 control subjects were singleton term live birth in the same year of birth and city of residence using randomized-digit dialing. The shortest distance to any of the high voltage power lines to the maternal residence during pregnancy was measured using ArcGIS software for every case and control. To test the association between the preterm births and the residential proximity to power lines, stepwise multiple logistic regression was used. Results. There were 28 households, 20 cases (14.8%) and 8 controls (5.3%) situated within 600 meters of high voltage power lines. The adjusted OR for spontaneous preterm birth and birth defect in women who were living in less than 600 meters from high voltage power lines was higher compared to those living at farther distance (OR = 3.28, CI: 1.37 to 7.85) and (OR = 5.05, CI: 1.52 to 16.78), respectively. Conclusions. Therefore, installing overhead power lines and stations within 600 meters or making overhead underground would be useful in the prevention of both preterm birth and birth defect.

scholarly journals Simulation of Electromagnetic Fields Generated by Overhead Power Lines and Railroad Traction Networks

2021 ◽  
pp. 70-88
Author(s):  
N.V. Buyakova ◽  
V.P. Zakaryukin ◽  
A.V. Kryukov ◽  
D.A. Seredkin
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Electromagnetic Fields ◽  
Smart Grids ◽  
Negative Impact ◽  
Power Industry ◽  
Electric Power System ◽  
Power Lines ◽  
Operating Parameters ◽  
Overhead Power Lines

The establishment of smart grids requires special attention to the safety of power industry facilities and the reduction in their negative impact on personnel and the environment. A significant factor of such an impact is the considerable intensities of electromagnetic field (EMF) generated by such facilities. In the context of power industry digitalization, the development of methods and tools for EMF digital simulation is needed to ensure the electromagnetic safety of the service personnel. Computer models designed to adequately determine the EMF generated by overhead power lines (OPL) can be implemented based on the methods and tools created to determine operating parameters of electric power systems in phase coordinates developed at Irkutsk State Transport University. The technique of electromagnetic safety analysis is implemented based on the proposed approach and has the following features: a systems approach, which is the possibility of simulating electromagnetic fields in terms of properties and characteristics of a complex electric power system; versatility, which allows simulating power lines and traction networks of various designs; appropriateness to the environment achieved by considering the profile of the underlying surface, underground utilities, and artificial structures of rail transport, such as galleries, bridges, and tunnels; comprehensiveness, which is provided by combining the computation of operating parameters and the determination of EMF intensities. The paper describes methods and algorithms developed to determine the intensities of electromagnetic fields generated by multi-conductor power lines at fundamental and higher harmonics frequencies. A technique for the EMF determination at the points of OPL orthogonal crossing is also presented.

scholarly journals Monitoring leakage currents of suspension insulators of high voltage overhead power lines

2019 ◽  
Vol 140 ◽  
pp. 05010
Author(s):  
Iosif Breido ◽  
Vladimir Kaverin ◽  
Dinara Abisheva ◽  
Aleksandr Kolychev
Keyword(s):  
High Voltage ◽  
Dynamic Characteristics ◽  
Partial Discharge ◽  
Experimental Studies ◽  
Power Lines ◽  
Suspension Insulator ◽  
Continuous Current ◽  
Overhead Power Lines ◽  
High Voltage Power Lines ◽  
Current Monitoring

The relevance of studying partial discharge currents (PDC) arising on the surface of suspension insulators of high-voltage overhead power lines (HVPL) is substantiated. Increasing PDC leads to increasing active energy losses and unauthorized shutdowns of high-voltage power lines due to the electric arc overlap of the suspension insulator. A laboratory bench for PDC experimental studying has been developed and manufactured. As a result of experimental studies we have determined static and dynamic characteristics of partial discharge currents; we have developed the algorithm for processing experimentally obtained results using Microsoft Excel spreadsheet editor. Recommendations have been developed for developing the hardware of the PDC sensor that allows increasing sensitivity, expanding the range of the controlled parameter and improving its dynamic characteristics in order to increase the accuracy and to expand the range of operation of the PDC sensor and to reduce the time it takes to establish its output signal. Equipping 220-500 kV power lines with PDC sensors of suspension insulators with telemetry will allow reducing the number of unauthorized emergency shutdowns of high-voltage power lines; realizing continuous current monitoring of the state of suspension insulators and receiving in real time the information of the integral value of PDC

scholarly journals Preliminary results on bird collision with overhead power lines in Hungary: a case study around Pusztaszer Landscape Protection Area

2019 ◽  
Vol 27 (1) ◽  
pp. 221-238
Author(s):  
Csaba Pigniczki ◽  
Zsolt Bakró-Nagy ◽  
Gábor Bakacsi ◽  
Csaba Barkóczi ◽  
Tamás Nagy ◽  
...  
Keyword(s):  
High Voltage ◽  
Statistical Tests ◽  
Daily Basis ◽  
Power Lines ◽  
Quality Of Data ◽  
Preliminary Results ◽  
Protection Area ◽  
Overhead Power Lines ◽  
High Voltage Power Lines ◽  
Landscape Protection

Abstract The literature on bird collision with power lines in Hungary is rather limited. We collected published records and carried out research on birds that collided with overhead wires, and we made a list of species, and the number of individuals recorded, around Pusztaszer Landscape Protection Area. The quality of data did not allow us to do robust statistical tests, and a large amount of collected data was not used in this paper, because of uncertainty. Finally, we used the records of 519 individuals of 63 species that got injured or died during collision with overhead wires. We found evidence, that low-, middle- and high-voltage power lines were all responsible for the collision accidents of birds. Birds that use wetlands or both wetlands and farmlands are the most threatened to collide with overhead electric wires. Most victims of collision accidents belong to Gruiformes, Charadriiformes, Pelecaniformes and Anseriformes orders. Our preliminary results suggest that the bigger the rate of weight and wingspan (wing-loading proxy) is, the greater the risk of birds colliding with power lines, probably because of poor manoeuvrability. Birds that move regularly, on a daily basis between their nests/roost sites and foraging areas are at higher risk to collide with electric wires. Our preliminary results do not support the hypothesis that birds which sit on power lines collide more frequently than birds that do not use wires. It seems that foggy weather circumstances increase the probability of collision events particularly in case of Common Cranes. Some large birds were found with burnt feathers after collision with middle-voltage power lines. A sizeable part of collided birds were protected or strictly protected. Bird collision with overhead wires is a serious problem in Hungary. Collision can be stopped on most dangerous part of overhead wires by converting to underground cabling. It is possible to reduce the number of collision events in case of high-voltage power lines by increasing their visibility. We always recommend underground cabling in case of wetlands, if new segments of electric wires would be carried out.

Coronavirus diseases and pregnancy: COVID-19,SARS, and MERS

2020 ◽  
pp. 276-289
Author(s):  
Mobina Fathi ◽  
Kimia Vakili ◽  
Niloofar Deravi
Keyword(s):  
Pregnant Women ◽  
Intrauterine Growth Retardation ◽  
Negative Impact ◽  
World Health ◽  
Wuhan City ◽  
Intrauterine Growth ◽  
Exponential Increase ◽  
The World ◽  
Health Organization ◽  
Respiratory Droplets

Around the end of December 2019, a new beta-coronavirus from Wuhan City, Hubei Province, China began to spread rapidly. The new virus, called SARS-CoV-2, which could be transmitted through respiratory droplets, had a range of mild to severe symptoms, from simple cold in some cases to death in others. The disease caused by SARS-CoV-2 was named COVID-19 by WHO and has so far killed more people than SARS and MERS. Following the widespread global outbreak of COVID-19, with more than 132758 confirmed cases and 4955 deaths worldwide, the World Health Organization declared COVID-19 a pandemic disease in January 2020. Earlier studies on viral pneumonia epidemics has shown that pregnant women are at greater risk than others. During pregnancy, the pregnant woman is more prone to infectious diseases. Research on both SARS-CoV and MERS-CoV, which are pathologically similar to SARS-CoV-2, has shown that being infected with these viruses during pregnancy increases the risk of maternal death, stillbirth, intrauterine growth retardation and, preterm delivery. With the exponential increase in cases of COVID-19 throughout the world, there is a need to understand the effects of SARS-CoV-2 on the health of pregnant women, through extrapolation of earlier studies that have been conducted on pregnant women infected with SARS-CoV, and MERS-CoV. There is an urgent need to understand the chance of vertical transmission of SARS-CoV-2 from mother to fetus and the possibility of the virus crossing the placental barrier. Additionally, since some viral diseases and antiviral drugs may have a negative impact on the mother and fetus, in which case, pregnant women need special attention for the prevention, diagnosis, and treatment of COVID-19.

ACTIVE SCREENING MAGNETIC FIELD SYSTEMS SYNTHESIS FOR SINGLE-CIRCUIT HIGH VOLTAGE POWER LINES WITH VERTICAL CONDUCTORS WITH SINGLE COMPENSATING COIL

2017 ◽  
Vol 25 (101) ◽  
pp. 402-408
Author(s):  
Boris B., Kobyljanskij ◽  
◽  
Valery V., Kolomiec ◽  
Boris I., Kuznetsov ◽  
Tatyana B., Nikitina ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Voltage ◽  
Power Lines ◽  
Active Screening ◽  
Field Systems ◽  
High Voltage Power Lines
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