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Статті в журналах з теми "Stationary control posts for environmental monitoring"
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Bondyrev, V. E., S. I. Knyazev, V. I. Korolev, and S. F. Jatsun. "Small-size Unmanned Control Algorithm of an Underwater Complex." Proceedings of the Southwest State University 24, no. 4 (February 4, 2021): 166–79. http://dx.doi.org/10.21869/2223-1560-2020-24-4-166-179.
Повний текст джерелаАнотація:
Purpose of research: The creation of water bodies monitoring systems makes it possible to evaluate environmental situation in various points of monitoring area quickly. One of the main stages of water quality research is sampling, which is currently carried out at stationary posts, which makes it impossible to ensure operational control in various areas of an observation site. The problem can be solved by using mobile robotic platforms. The purpose of this study is to create mathematical model and algorithm for controlling autonomous movement of an underwater robotic device for collecting water samples in a reservoir. Methods. The following problems were solved for this purpose: the structure of the device was developed, which consists of a power frame unit, units of screw electric drives, units of depth and direction rudders. On-board power supply unit, sensor unit providing interaction of underwater vehicle with environment were also developed. Control tasks are formulated. A scheme of device movement in a reservoir has been developed for this purpose. Results. Modular method of trajectory planning is proposed. It is based on a single motion cycle concept, which consists of 2 turns and 2 straight-line stages of 2R2P. A model of control algorithm is also proposed and reactions of apparatus to external disturbances are studied. General dynamics theorems, method of algorithm synthesizing according to inverse dynamics problem were applied when solving problems. Conclusion: As a result of conducted studies, the system response to disturbances acting in longitudinal direction is described, disturbance diagrams are also described, random type with normal distribution law and mass center deviation s from the given position are given.
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Vekovshinina, Svetlana A., S. V. Kleyn, and N. A. Stepanov. "THE 2018 FIFA WORLD CUP: PRACTICAL EXPERIENCE IN PRESENTING SCIENTIFIC GROUNDS FOR A LIST OF PRIORITY ENVIRONMENTAL CHEMICAL CONTAMINANTS CONSIDERED AS THE SUBJECT TO SANITARY-EPIDEMIOLOGIC CONTROL." Hygiene and sanitation 98, no. 4 (October 28, 2019): 366–73. http://dx.doi.org/10.18821/0016-9900-2019-98-4-366-373.
Повний текст джерелаАнотація:
Introduction. Mass events, including sports, such as the World Cup, can contribute to the emergence of public health risks that must be identified and eliminated. Material and methods. We studied data on air pollution, drinking water and soil, information on pollution sources, locations of stationary and mobile observation posts and Saransk infrastructure facilities intended for the FIFA World Cup 2018. The study used methods of hygienic assessment, analysis, and synthesis, comparisons, and generalizations, as well as assessments of risk to public health. Results. Moderate inhalation risks (HI up to 1.14) for respiratory organs may form fine dust (PM10 and PM2.5). The risk to public health during oral acute short-term exposure to chemicals coming from drinking water and soil did not exceed the permissible level. The concentrations of certain elements and chemicals in drinking water exceeded hygienic standards (boron up to 2.36 times, iron up to 2.88 times, fluorides up to 1.48 times). The content of benzo (a) pyrene in the soil exceeded the hygienic standard by 6.49 times. Discussion. The results of similar studies carried out during the period of preparation for the holding of global mass events in Russia in 2013-2019 confirmed the results and conclusions of this work. The main route of exposure of chemicals to the health of the population, guests, and participants of the events is inhalation. Additional control is needed for dust, including PM10 and PM2.5. Conclusion. Revision and modification of the existing system of placement of posts monitoring the quality of the environment are not required. Additional control is needed with respect to PM10 and PM2.5 (atmospheric air), fluorides, boron, iron, nitrates, and strontium (drinking water), benzo (a) pyrene (soil).
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Savina, I. N., A. S. Vodoleev, M. A. Zakharova, and K. I. Domnin. "Environmental policy of Novokuznetsk in the context of modern requirements for metallurgical industry development." Izvestiya. Ferrous Metallurgy 63, no. 7 (October 5, 2020): 512–20. http://dx.doi.org/10.17073/0368-0797-2020-7-512-520.
Повний текст джерелаАнотація:
Analysis of air pollution by pollutants, sources of pollution, types of economic activity, and administrative areas in the city of Novokuznetsk over 5 years was carried out. The largest share in the city air emissions is accounted for: CO – 61.8 %; SO2 – 17.4 %; solids – 11.3 %; NO2 – 5.9 %; CH4 – 1.8 %. Dynamics of gross emissions by years is shown. Planned implementation of the approved measures of the national project Ecology will make it possible to reduce air pollution in the city by more than 20 % by 2024, which corresponds to the federal project Clean Air. According to planes of the city industrial enterprises, environmental programs have been prepared, with monitoring by environmental specialists from the city administration and public control. Various measures were taken: automatic stationary posts were put into operation to monitor air pollution in real time; mobile laboratory was acquired to measure urban air. To improve waste management in the city, separate collection projects were implemented. Environmental assets exist and develop in the city, which ideas and projects find common understanding and form ecological attitude of the urban community. Trends in gross emissions of pollutants into the atmosphere of Novokuznetsk are shown for the period of 2014 – 2018; refinements and explanations of the observed trends are given.
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Karelin, Aleksandr O., A. Yu Lomtev, M. V. Volkodaeva, and G. B. Yeremin. "THE IMPROVEMENT OF APPROACHES TO THE ASSESSMENT OF EFFECTS OF THE ANTHROPOGENIC AIR POLLUTION ON THE POPULATION IN ORDER TO MANAGEMENT THE RISK FOR HEALTH." Hygiene and sanitation 98, no. 1 (March 27, 2019): 82–86. http://dx.doi.org/10.18821/0016-9900-2019-98-1-82-86.
Повний текст джерелаАнотація:
The air pollution has got a great risk to the health of the population. In the risk assessment, objective and subjective uncertainties have appeared. The aim of the study to analyze the uncertainties arising in the assessment of health adverse effects of air pollution and possible ways to decrease them. Methods of the scientific hypothetical deductive cognition, general logical methods, and approaches of researches: analysis, synthesis, abstracting, generalization, induction. In this paper, we analyzed the uncertainties arising in the risk assessment for the health of population caused by air pollution and proposed measures to improve the approaches to assessment and management of the risk. The analysis revealed the main causes of the uncertainties. In the field of the atmospheric air monitoring, they are lack of modern equipment and officially approved methods for measurement, the absence of criteria and recommendation for choosing of controlled air pollutants. For the health assessment, it is advisable to use epidemiological methods and methodology of risk analysis taking into account the uncertainties of each approach. Usage of the geographic information systems let increase the informativity of data and efficiency of analysis. Accurate quantification of the risk for the health of population caused by air pollution is a difficult to challenge. It is necessary to take into account the experience of developed countries in the development of domestic criteria for the selection of substances for the control of atmospheric air quality. It is advisable to combine the analysis of data on the actual concentrations of pollutants obtained at stationary and mobile observation posts, and integrated calculations of air pollution. It is necessary to use basic concepts of evidence-based medicine to identify the real impact of air pollutants on public health and reduce uncertainties. Conclusion. In the assessment of risk for health caused by air pollution a lot of objective and subjective uncertainties appear. Based on the principles of evidence-based medicine, they should be comprehensively analyzed and minimized using modern methodological approaches, taking into account their capabilities and limitations.
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Sigora, G. A., S. A. Gutnik, E. I. Azarenkо, L. A. Nichkova, and T. Yu Khomenko. "Increasing the efficiency of the atmospheric air monitoring system in the city of Sevastopol." Monitoring systems of environment, no. 1 (March 25, 2021): 118–28. http://dx.doi.org/10.33075/2220-5861-2021-1-118-128.
Повний текст джерелаАнотація:
This article summarizes the obtained results of assessing the effectiveness of monitoring of atmospheric air pollution in the city of Sevastopol by stationary and mobile sources and gives recommendations for its improving. Analysis of the existing air monitoring network shows that the monitoring system needs to be modernized due to a number of identified inconsistencies: the number of stationary posts in the city of Sevastopol does not meet the requirements of RD 52.04.186-89 and their number should be increased; the location of stationary posts does not allow obtaining an objective picture of air pollution in all areas of the city; the list of specific impurities subject to control requires clarification and justification based on the available data on the actual intake of pollutants into the city atmosphere; the location of checkpoints on highways does not cover all highways in the city. A list of the largest stationary pollution sources is compiled. Maximum permissible emissions of 243 enterprises are analyzed, including information on 1482 sources of emissions. The main sources of air pollution are revealed and their ranking by gross emissions is performed. An assessment of the data of field observations of atmospheric air pollution in the city of Sevastopol for compliance with the current standards is carried out and a preliminary list of pollutants is formulated to justify the expediency of their control at stationary and route points of the city. The article describes some aspects of a large-scale study aimed at assessing the effectiveness of the air pollution monitoring in the city of Sevastopol. Other stages of research and proposals for modernizing the monitoring system are planned to be published in a series of subsequent articles.
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Lezhenin, Anatoly A., and Vladimir F. Raputa. "METHODS FOR ASSESSING THE CITY ATMOSPHERE POLLUTION ACCORDING TO MONITORING DATA." Interexpo GEO-Siberia 4, no. 1 (May 21, 2021): 159–66. http://dx.doi.org/10.33764/2618-981x-2021-4-1-159-166.
Повний текст джерелаАнотація:
The problem of assessing the city's atmospheric pollution based on monitoring data at stationary observation posts is considered. The results of the research carried out on the example of Iskitim city in the Novosibirsk region are discussed. The analysis of the relationship between the frequency of impurity emissions from dominant sources and the measured concentrations at the stationary observation point of the city for winter periods of time is carried out. The influence of the frequency of winds of different directions on the formation of the level of atmospheric pollution at the control post has been investigated. Taking into account the relative position of the observation point and the main highway of the city, a noticeable contribution of southwestern winds to the increase in benzo (a) pyrene concentrations is shown. The regularities of the formation of atmospheric pollution in calm conditions have been studied. A statistical relationship has been established between the number of calm recorded during the month at the Iskitim meteorological station and the values of benzo(a)pyrene concentrations.
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Barbashev, S., and F. Averenkov. "Optimization of Locations and Number of NPP ARMS Posts." Nuclear and Radiation Safety, no. 3(75) (August 22, 2017): 40–45. http://dx.doi.org/10.32918/nrs.2017.3(75).07.
Повний текст джерелаАнотація:
The paper states that requirements for the arrangement of network of automated radiation monitoring posts at Ukrainian NPPs are not fully implemented. It is proposed to use a methodical approach considering environmental, physical and technical factors, peculiarities of NPP emission plume generation and spreading to optimize the number and locations of ARMS posts with sensors for measuring gamma dose rate in NPP control area. Practical implementation of the methodology was performed by the example of Khmelnitsky NPP. The experts developed the basic layout of ARMS gamma sensors in the control area for two NPP power units.
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Kortsova, Olena, Irina Soloshych, and Volodymyr Bakharev. "TO THE ISSUE OF PRACTICAL IMPLEMENTATION OF THE REQUIREMENTS FOR DETERMINING THE LOCATIONS OF AUTOMATED POSTS IN THE ATMOSPHERIC AIR MONITORING SYSTEM OF TECHNOGENICALLY INSTALLED URBAN SYSTEMS." Transactions of Kremenchuk Mykhailo Ostrohradskyi National University, no. 3(128) (June 11, 2021): 36–44. http://dx.doi.org/10.30929/1995-0519.2021.3.36-44.
Повний текст джерелаАнотація:
Purpose. The results of theoretical and analytical-calculation studies on the substantiation of the automatic stationary post location of constant control (PCC) in the zone of probable influence of the industrial enterprise PJSC «Kryvyi Rih Cement» (Kryvyi Rih) with the determination of the expected contribution of this object to the general atmospheric air pollution level. Methodology. The requirements for the organization of observations of the atmospheric air state and the specific choice of stationary sampling points are generalized. Method of calculating the scattering of pollutants is used. Results. A set of indicators and characteristics that affect the processes of atmospheric air pollution formation in the area of the probable negative impact of the industrial facility is determined. The conditions of PCC location are detailed specifically for the conditions of technogenic loaded urban systems. On this basis, a priority place for the installation of a stationary automated post of constant control and monitoring of air pollution in the area of the industrial enterprise PJSC «Kryvyi Rih Cement» influence has been specified. The calculation of the scattering of pollutants in the surface layer of the atmosphere using the software package «EOL +» to determine the expected level of pollutants concentrations present in the emissions of the object at a certain PCC location, as well as at the SPZ to determine the expected maximum contribution of this object to the overall level of air pollution. The maximum expected calculated values of surface concentrations at the location of the PCC are from 0.01 for sulfur dioxide to 0.21 MPa for the summation group № 31. Originality. The requirements and conditions of the automated monitoring stations location in the areas of the negative impact of industrial facilities are summarized, which allows to clearly and reasonably determining the priority location of the control panel. Practical value. The results of the research have been practically implemented. The control panel has been installed and is working successfully, as evidenced by the data of the city web portal «Ecomonitoring» in Kryvyi Rih – https://www.krmisto.gov.ua/ua/rc/ecomon.html. The social significance of the research is both in the participation of the industrial facility in the system of automated observations and assessment of air quality and in informing the inhabitants of man-made urban systems on the environment state. References 13, tables 3, figures 4.
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Фесенко, Герман Вікторович, та Вячеслав Сергійович Харченко. "ВИЗНАЧЕННЯ ОПТИМАЛЬНОГО МАРШРУТУ ОБЛЬОТУ ЗАДАНИХ ТОЧОК ТЕРИТОРІЇ ПОТЕНЦІЙНО НЕБЕЗПЕЧНОГО ОБ’ЄКТУ ФЛОТОМ БПЛА". RADIOELECTRONIC AND COMPUTER SYSTEMS, № 3 (30 вересня 2019): 63–72. http://dx.doi.org/10.32620/reks.2019.3.07.
Повний текст джерелаАнотація:
Motivation. One of the tasks of nuclear power plants and other potentially dangerous objects monitoring employing unmanned aerial vehicles (UAV) is flying over specified points of the territory of such objects. Finding the optimum routes often involves different options for the traveling salesman problem solving. However, if there are multiple starting positions, there is a need to solve the traveling salesman problem for each variant of the UAV start (for each variant of the start-end point of the route). The subject matter of the paper is the process of minimizing the flight time of visiting the specified points of the potentially dangerous object territory, taking into account the locations and models of the UAV fleet. The tasks to be solved are: to develop an algorithm for determining the optimal route for flight over of the given points of the potentially dangerous object territory for the fleet, each UAV of which is at its separate starting position; to show the possibility of using the proposed algorithm to minimize the flight time for visiting all of the appointed control posts of the automated radiation situation monitoring system for Zaporizhzhia nuclear power plant. The methods used are: graph theory, mathematical optimization models, methods for solving the traveling salesman problem. The following results were obtained. The faceted classification of the traveling salesman problem for UAV flight routing is offered. The steps of the algorithm for determining the optimal route of flight over of the specified points of the potentially dangerous object territory by the UAV fleet are described. The problem of determining the fastest flight over of 11 control posts of the automated radiation monitoring system for Zaporizhzhia nuclear power plant is solved for two cases: 1) UAV "Leleka-100" are at all starting positions, 2) UAV "Leleka-100" is at the first starting position, various modifications of the model "R-100" are at the rest starting position. Changes in the optimal route when changing UAV models and speeds are shown. Conclusions. The results obtained should be used to justify the composition of the UAV fleet, simulate its application, evaluate its target effectiveness, as well as to create algorithmic support and software for ground control station operators’ work places. Further research should focus on developing models that take into account the possibility of refueling UAVs or recharging their batteries at stationary or moving posts while being on a route.
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May, I. V., A. A. Kokoulina, and S. Yu Balashov. "On the issue of optimization of atmospheric air quality monitoring for the implementation of the Federal project «Clean Air»." Russian Journal of Occupational Health and Industrial Ecology, no. 11 (December 4, 2019): 931–36. http://dx.doi.org/10.31089/1026-9428-2019-59-11-931-936.
Повний текст джерелаАнотація:
Introduction. The city of Chita of Zabaikalsky region is one of the cities of Russia, priority on level of pollution of atmosphere. Of the order of 130 impurities emitted by the sources of the city, 12 are monitored at 5 posts of the Roshydromet network. Maximum monthly average concentrations are formed by benz (a) pyrene (up to 56.8 MPC), hydrogen sulfide (12.3 MPC), suspended particles (up to 4PDC), phenol (up to 3.6 MPC). Significant emissions (59.73 thousand tons in 2018) are aggravated by the use of coal as a fuel by heat and power enterprises and the private sector, climatic and geographical features. Within the framework of the Federal project “Clean Air” of the national project “Ecology”, it is envisaged to reduce the gross emission of pollutants into the atmosphere of Chita by 8.75 thousand tons by 2024, which should lead to a significant improvement in the safety and quality of life of citizens. It is necessary to identify the most “risky “components of pollution for health.It is important to understand: whether the environmental monitoring system reflects the real picture of the dangers posed by pollution of the city’s atmosphere; whether there is a need to optimize the monitoring system for the subsequent assessment of the effectiveness and efficiency of measures; what impurities and at what points should be monitored in the interests of the population, administration and economic entities implementing air protection measures.The aim of the study is to develop recommendations for optimizing the program of environmental monitoring of air quality in the city of Chita, taking into account the criteria of danger to public health for the subsequent evaluation of the effectiveness and effectiveness of the Federal project “Clean Air”.Materials and methods. Justification of optimization of monitoring programs was carried out through the calculation of hazard indices, considering: the mass of emissions and toxicological characteristics of each chemical; the population under the influence. A vector map of the city with a layer “population density” was used as a topographic base. The indices were calculated for regular grid cells covering the residential area. For each cell, the repeatability of winds of 8 points from the priority enterprises and the population within the calculated cell were taken into account. As a result, each calculation cell was characterized by a total coefficient, taking into account the danger of potential impacts of emissions. Based on the results of the assessments, recommendations were formulated to optimize the placement of posts in the city and the formation of monitoring programs.Results. Indices of carcinogenic danger to the health of the population of Chita ranged from 584,805. 96 to 0.03 (priorities: carbon (soot), benzene, benz (a) pyrene); indices of non-carcinogenic danger — from 1,443,558. 24 to 0.00 (priorities: sulfur dioxide, inorganic dust containing 70–20% SiO2, fuel oil ash). The greatest danger to public health stationary sources of emissions form in the North-Western, Western and South-Eastern parts of the city. Roshydromet posts in these zones are absent.Conclusions. As part of the objectives of the project “Clean Air”, it is recommended to Supplement the existing state network of observations of atmospheric air quality in Chita with two posts; to include manganese, xylene, vanadium pentoxide in the monitoring programs, to carry out the determination of Benz(a)pyrene et all posts, which will allow to fully and adequately assess the danger of emissions of economic entities, as well as the effectiveness and efficiency of the provided air protection measures.
Дисертації з теми "Stationary control posts for environmental monitoring"
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Нааем, Хазім Рахім Нааем. "Моделі та методи розподілу мережевого ресурсу комп'ютерних мереж геоінформаційной системи екологічного моніторингу". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/34184.
Повний текст джерелаАнотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.05 – Комп'ютерні системи та компоненти. – Національний технічний університет "Харківський політехнічний інститут", Харків 2018.
Дисертаційна робота присвячена вирішенню науково-практичної задачі удосконалення методу розподілу мережевого ресурсу комп'ютерних систем геоінформаційної системи екологічного моніторингу, що дозволяє підвищити оперативність функціонування цієї систем за рахунок використання розроблених моделей та методів розподілу обчислювального ресурсу мережі. Розроблено метод ухвалення рішень по організації стаціонарних постів системи ГІС екологічного моніторингу, який у відмінності від існуючих враховує параметр, що визначає швидкість зміни рівня поточного забруднення, величину концентрації небезпечних хімічних речовин (ОХВ) і розу вітрів, характерну для цієї місцевості. Запропоновано модель трафіку передачі даних гібридної комп'ютерної мережі ГІС екологічного моніторингу, яка враховує злиття інформаційних потоків, що мають різні статистичні моделі та метод розподілу мережевого ресурсу гібридної комп'ютерної мережі ГІС за рахунок використання технології MIMO, що дозволяє на 12-15% понизити час, необхідне на доставку даних моніторингу. Розроблена модель програмно-апаратних засобів, використання якої враховує особливості безпровідній передачі даних від декількох джерел інформації у гібридної комп'ютерної мережі ГІС.Thesis for scientific degree candidate of technical sciences in the specialty 05.13.05 – computer systems and components. – National Technical University "Kharkіv Polytechnic Institute", Kharkіv 2018. The dissertation is devoted to the solution of the scientific and practical task of improving the method of network resource distribution of computer system of the geographic information system for ecological monitoring, which allows increasing the efficiency of functioning of these systems by using already developed models and methods of computing resource distribution of the network. The structure of GIS for environmental monitoring is developed, its main sub-systems and interaction principles are defined. The structure of hybrid computer network for digital data transmissions proposed, which allows optimizing the process of data transmission for environmental monitoring. The method of making decisions on the foundation of stationary posts of GIS for environmental monitoring is provided, which, in contrast to the existing ones, takes into account the parameter that determines the alteration rate of the then-current pollution level, the magnitude of the concentration of hazardous chemicals (HAZCHEM), and the wind rose specific for the area in question. Also, this method takes into consideration that the difference of HAZCHEM concentration in space varies from point to point. The whole from the abovementioned allows localizing zones of potential pollution and severely reducing the number of specialized observation posts (by 10-15%). The data transmission traffic model is developed for the hybrid computer network (CN) of the environmental monitoring GIS. This model takes into account the merging of information flows, which have different statistical models. The use of the offered model allows shortening the computer network data transmission rate by 13%. The network resources distribution method for the hybrid computer network of the environmental monitoring GIS is developed through the use of MIMO technology, which allows reducing the time required for monitoring data delivery by 12-15%. The model of hardware and software has been developed, the usage of which considers the features of wireless data transmission from several information sources in the hybrid computer network of GIS, thereby allowing to reduce the package loss ratio and to increase the speed of data transmission for the hybrid CN of GIS. The offered efficiency enhancement models and methods in computer networks of GIS have been examined in simulation modeling and experimental studies, which have thereby confirmed the veracity and significance of the derived results. The developed software and hardware model for ecological monitoring GIS allows reducing dates of receipt, processing and analysis of the ecological data, improving veracity and quality of the received results, and ensuring information safety.
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Нааем, Хазім Рахім Нааем. "Моделі та методи розподілу мережевого ресурсу комп'ютерних мереж геоінформаційной системи екологічного моніторингу". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/34163.
Повний текст джерелаАнотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.05 – Комп'ютерні системи та компоненти. – Національний технічний університет "Харківський політехнічний інститут", Харків 2018.
Дисертаційна робота присвячена вирішенню науково-практичної задачі удосконалення методу розподілу мережевого ресурсу комп'ютерних систем геоінформаційної системи екологічного моніторингу, що дозволяє підвищити оперативність функціонування цієї систем за рахунок використання розроблених моделей та методів розподілу обчислювального ресурсу мережі. Розроблено метод ухвалення рішень по організації стаціонарних постів системи ГІС екологічного моніторингу, який у відмінності від існуючих враховує параметр, що визначає швидкість зміни рівня поточного забруднення, величину концентрації небезпечних хімічних речовин (ОХВ) і розу вітрів, характерну для цієї місцевості. Запропоновано модель трафіку передачі даних гібридної комп'ютерної мережі ГІС екологічного моніторингу, яка враховує злиття інформаційних потоків, що мають різні статистичні моделі та метод розподілу мережевого ресурсу гібридної комп'ютерної мережі ГІС за рахунок використання технології MIMO, що дозволяє на 12-15% понизити час, необхідне на доставку даних моніторингу. Розроблена модель програмно-апаратних засобів, використання якої враховує особливості безпровідній передачі даних від декількох джерел інформації у гібридної комп'ютерної мережі ГІС.Thesis for scientific degree candidate of technical sciences in the specialty 05.13.05 – computer systems and components. – National Technical University "Kharkіv Polytechnic Institute", Kharkіv 2018. The dissertation is devoted to the solution of the scientific and practical task of improving the method of network resource distribution of computer system of the geographic information system for ecological monitoring, which allows increasing the efficiency of functioning of these systems by using already developed models and methods of computing resource distribution of the network. The structure of GIS for environmental monitoring is developed, its main sub-systems and interaction principles are defined. The structure of hybrid computer network for digital data transmissions proposed, which allows optimizing the process of data transmission for environmental monitoring. The method of making decisions on the foundation of stationary posts of GIS for environmental monitoring is provided, which, in contrast to the existing ones, takes into account the parameter that determines the alteration rate of the then-current pollution level, the magnitude of the concentration of hazardous chemicals (HAZCHEM), and the wind rose specific for the area in question. Also, this method takes into consideration that the difference of HAZCHEM concentration in space varies from point to point. The whole from the abovementioned allows localizing zones of potential pollution and severely reducing the number of specialized observation posts (by 10-15%). The data transmission traffic model is developed for the hybrid computer network (CN) of the environmental monitoring GIS. This model takes into account the merging of information flows, which have different statistical models. The use of the offered model allows shortening the computer network data transmission rate by 13%. The network resources distribution method for the hybrid computer network of the environmental monitoring GIS is developed through the use of MIMO technology, which allows reducing the time required for monitoring data delivery by 12-15%. The model of hardware and software has been developed, the usage of which considers the features of wireless data transmission from several information sources in the hybrid computer network of GIS, thereby allowing to reduce the package loss ratio and to increase the speed of data transmission for the hybrid CN of GIS. The offered efficiency enhancement models and methods in computer networks of GIS have been examined in simulation modeling and experimental studies, which have thereby confirmed the veracity and significance of the derived results. The developed software and hardware model for ecological monitoring GIS allows reducing dates of receipt, processing and analysis of the ecological data, improving veracity and quality of the received results, and ensuring information safety.
Книги з теми "Stationary control posts for environmental monitoring"
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Office, General Accounting. Air pollution: Environmental Protection Agency's inspections of stationary sources : briefing report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. [Washington, D.C.]: The Office, 1985.
Знайти повний текст джерелаТези доповідей конференцій з теми "Stationary control posts for environmental monitoring"
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Rendon, Manuel A., Konstantinos Kyprianidis, Yipsy Roque Benito, Daniel de A. Fernandes, Ariele T. Ferraz, and Luan R. C. Vieira. "Energy Management of a Hybrid-Electric Aeronautical Propulsion System to Be Used in a Stationary Test Bench." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-16133.
Повний текст джерелаАнотація:
Abstract Environmental requirements have led the air transportation industry to work towards reducing greenhouse gas emissions and mechanical noise levels. Nowadays, this sector contributes with 2% of the total greenhouse gas emissions, and there is a demand from global aviation regulators for further reducing this percentage. In the last years, the development of Hybrid-Electric Propulsion Systems (HEPSs) has grown. The HEPS combines an Internal Combustion Engine (ICE), for example, Gas Turbine (GT) or reciprocating engine, with an Electric Motor (EM), combining the inherent advantages of both. HEPSs present increased efficiency and operating safety in comparison with conventional ICE-powered systems. Furthermore, they can supply the electrical devices with power. This area of study is multidisciplinary in nature and, therefore, poses research challenges on ICEs, EMs, electronic converters, propeller design, monitoring and control systems, management and supervision systems, energy efficiency and optimization, aerodynamics and aircraft mechanical design. A research project aimed at the characterisation of hybrid-electric aircraft propulsion systems, and the construction of a HEPS prototype, is underway in Brazil. The system is essentially composed of a GT, an EM, three electronic converters, a battery bank and a propeller. It can operate with three different topologies: series, full-electric and turbo-electric. A test bench with all the necessary peripheral and analysis infrastructure is under construction. Present work aims to: (i) develop simplified models for all the test bench components, (ii) given a mission profile, show the results of an initial energy management computing code that determines the optimal hybridization strategy, and (iii) simulate various operating alternatives for the chosen mission profile. The results (i) highlight the impact of critical characteristics of the batteries on the HEPS performance, and (ii) demonstrate the application of the management code on optimizing the aircraft energy consumption for a given mission profile.
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Wei, Jinquan, Liyan Luo, Mei Wang, Xiyu Song, Liujun Zhang, and Man Yao. "Urban Environmental Sound Monitoring Network Based on Combination of Mobile and Stationary Nodes." In 2020 7th International Conference on Information Science and Control Engineering (ICISCE). IEEE, 2020. http://dx.doi.org/10.1109/icisce50968.2020.00297.
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Antonova, Zh A. "Comparative characteristic of atmospheric air quality on the right-bank and left-bank parts of Ulyanovsk." In VIII Vserossijskaja konferencija s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka». Publishing center of Ulyanovsk State University, 2021. http://dx.doi.org/10.34014/mpphe.2021-11-14.
Повний текст джерелаАнотація:
The investigation was carried out on the basis of analysis of data from stationary monitoring stations for atmospheric pollution during two-year period (2020-2021) and the city's zoning scheme. As a result of the investigation priority pollutants were identified for the right-bank and left-bank parts of Ulyanovsk. According to the list of priority pollutants, a number of prospective sources of these emissions were identified.
Key words: stationary observation posts, priority pollutants, pollution sources, mobile posts, environmental standards.
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Hung, Wilfred S. Y., and Fritz Langenbacher. "PEMS: Monitoring NOx Emissions From Gas Turbines." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-415.
Повний текст джерелаАнотація:
Predictive Emission Monitoring System (PEMS) was developed in 1990 to provide continuous monitoring of NOx emissions from stationary gas turbines with minimum maintenance. This system will meet the Enhanced Monitoring requirements under Title V of the Clean Air Act Amendments of 1990 when these requirements are finalized. The PEMS has been well received by various United States federal, state and local environmental agencies. It has been certified in the state of Colorado, and accepted in Pennsylvania and Texas. This paper reviews the Enhanced Monitoring requirements for gas turbine NOx emissions monitoring and discusses the technical background of the PEMS. The PEMS design is described, including inputs, outputs and operator interface. Experiences with some of the installed systems are presented. The PEMS predicts NOx emissions from turbine control system inputs and measurements of ambient air conditions. The prediction algorithms are based upon a time tested NOx emission model for gas turbines. This model has successfully predicted all measured NOx emission phenomena from gas turbines since 1974. The PEMS has been proven to be accurate within the 20% relative accuracy required for certification. The PEMS operates unattended, with extremely low maintenance and high reliability. Record keeping and report generation are automated. The PEMS is typically integrated into the turbine control and condition monitoring system. The PEMS meets regulatory requirements with a much lower cost than a conventional Continuous Emission Monitoring System (CEMS).
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Sekhon, Rajat, Hany Bassily, and John Wagner. "Real Time Prognostic Strategies With Application to Stationary Gas Turbines." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14068.
Повний текст джерелаАнотація:
Stationary gas turbines are increasingly deployed throughout the world to provide electrical and mechanical power in consumer and industrial sectors. The efficiency of these complex multi-domain systems is dependent on the turbine's design, established operating envelope, environmental conditions, and maintenance schedule. A real time health management strategy can enhance overall plant reliability through the continual monitoring of transient and steady-state system operations. The availability of sensory information for control system needs often allow diagnostic/prognostic algorithms to be executed in a parallel fashion which warn of impending system degradations. Specifically, prognostic strategies estimate the future plant behavior which leads to minimized maintenance costs through timely repairs, and hence, improved reliability. In this paper, statistical and wavelet prognostic methods are presented to forecast system health. For the statistical approach, a multi-dimensional empirical description reveals dominant data trends and estimates future behavior. The wavelet approach uses second order Daubechies wavelet coefficients to generate signal approximations that forecast future plant operation. Experimental data has been collected on a Solar Mercury 50 stationary gas turbine. The monitored plant signals were analyzed to identify prognostic information for preventative action recommendations. Representative results are presented and discussed to compare the overall performance of each prognostic algorithm.