Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s09.23
O. Odalović, S. Grekulović, M. T. Drakul, Dušan Petković
The new network of permanent GNSS (Global Navigation Satellite System) stations should be established by the end of this year. At the moment, 18 permanent stations are already established. All stations coordinates must be determined following the conditions dictated by the Republic Geodetic Authority of Serbia, i.e., the Rule Book for establishing the GNSS permanent stations network. The coordinates of stations, the final solution, must be calculated from three consecutive uninterrupted daily sessions as a combined solution of all three days. The essential condition that must be fulfilled is the daily repeatability of the coordinates of the points for the three daily solutions on the level of 10 mm in the horizontal direction and 15 mm in the vertical direction. In other words, GNSS coordinates of the permanent station can be treated as calculated and adopted as final if the differences between coordinates of the daily solution and final solution do not exceed 10 mm in the horizontal direction and 15 mm in the vertical direction. In this research, preliminary calculations of coordinates repeatability are checked using Bernese GNSS Software Version 5.2 and two online RINEX processing tools, Australian AUSPOS - Online GPS Processing Service and Canadian CSRS-PPP (Canadian Spatial Reference System Precise Point Positioning).
{"title":"DETERMINATIONS OF THE PRELIMINARY COORDINATES FOR THE NEW GNSS PERMANENT STATIONS IN SERBIA","authors":"O. Odalović, S. Grekulović, M. T. Drakul, Dušan Petković","doi":"10.5593/sgem2022/2.1/s09.23","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s09.23","url":null,"abstract":"The new network of permanent GNSS (Global Navigation Satellite System) stations should be established by the end of this year. At the moment, 18 permanent stations are already established. All stations coordinates must be determined following the conditions dictated by the Republic Geodetic Authority of Serbia, i.e., the Rule Book for establishing the GNSS permanent stations network. The coordinates of stations, the final solution, must be calculated from three consecutive uninterrupted daily sessions as a combined solution of all three days. The essential condition that must be fulfilled is the daily repeatability of the coordinates of the points for the three daily solutions on the level of 10 mm in the horizontal direction and 15 mm in the vertical direction. In other words, GNSS coordinates of the permanent station can be treated as calculated and adopted as final if the differences between coordinates of the daily solution and final solution do not exceed 10 mm in the horizontal direction and 15 mm in the vertical direction. In this research, preliminary calculations of coordinates repeatability are checked using Bernese GNSS Software Version 5.2 and two online RINEX processing tools, Australian AUSPOS - Online GPS Processing Service and Canadian CSRS-PPP (Canadian Spatial Reference System Precise Point Positioning).","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132416258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s09.26
L. Barliba, C. Bârliba, I. Samfira, A. Ienciu, F. C. Bârliba
The purpose of the paper is to perform a topographic lifting and traction of an architectural project for the execution of a Tyrolean that is arranged on various relief forms, in a hilly area, halfway between Timisoara and Lugoj, Timis County, Romania. The development of an adventure park in an area so close to urban settlements has a great impact on the public of all age categories. Children are the main beneficiaries of such objectives because they test their minds and, at the same time, implement an active and healthy life rate. After the execution of this Tyrolean, the investment made will lead to the development of the area and its transformation into a tourist and leisure attraction point and the localities in the area will be an alternative for private investors or for the locals living in the city and wanting to settle in these localities. By building new opportunities for recreation, creating competitions and events, the development is acquired from many points of view: growing and establishing the population, bringing new investments and investors for the development of the area. The proposed Tyrolean is made up of 4-5 routes established according to the degree of difficulty proposed for different children�s age categories, at the same time ensuring the safety of the user and avoiding accidents, the routes being established only on the trees of certain ages and dimensions. In order to execute the topographic elevations, in order to achieve the situation plan, the state-of-the-art topographic, devices and methods adapted to the conditions of the field (covered with forest vegetation on most routes) were used.
{"title":"EXECUTION OF TOPOGRAPHIC WORKS IN ORDER TO RAISE AND DRAW AN ITINERARY FOR A TYROLEAN IN TIMIS COUNTY, ROMANIA","authors":"L. Barliba, C. Bârliba, I. Samfira, A. Ienciu, F. C. Bârliba","doi":"10.5593/sgem2022/2.1/s09.26","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s09.26","url":null,"abstract":"The purpose of the paper is to perform a topographic lifting and traction of an architectural project for the execution of a Tyrolean that is arranged on various relief forms, in a hilly area, halfway between Timisoara and Lugoj, Timis County, Romania. \u0000The development of an adventure park in an area so close to urban settlements has a great impact on the public of all age categories. Children are the main beneficiaries of such objectives because they test their minds and, at the same time, implement an active and healthy life rate. \u0000After the execution of this Tyrolean, the investment made will lead to the development of the area and its transformation into a tourist and leisure attraction point and the localities in the area will be an alternative for private investors or for the locals living in the city and wanting to settle in these localities. By building new opportunities for recreation, creating competitions and events, the development is acquired from many points of view: growing and establishing the population, bringing new investments and investors for the development of the area. \u0000The proposed Tyrolean is made up of 4-5 routes established according to the degree of difficulty proposed for different children�s age categories, at the same time ensuring the safety of the user and avoiding accidents, the routes being established only on the trees of certain ages and dimensions. \u0000In order to execute the topographic elevations, in order to achieve the situation plan, the state-of-the-art topographic, devices and methods adapted to the conditions of the field (covered with forest vegetation on most routes) were used.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133038138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s07.02
B. Kotková
Information technology is a common part of human activities today. In most countries of the world, the security, health, and industrial sectors can be established here. The dependence of these sectors on information technology has been significantly strengthened by the global covid-19 pandemic and the current war in Ukraine. Data digitization has brought positives such as availability, fast transmission, and processing of necessary information. As well as negatives as constant attempts to steal, destroy or abuse them. Health care is one of the sectors where it is the target of not only enrichment attacks, but also terrorist motives - the attack causes chaos and panic among the population. The number of such attacks increased dramatically during the covid - 19 pandemic and the military conflict in Ukraine. The article is therefore intended to point out the need for constant evaluation of changing environmental influences and motivations for attacks with regard to the topicality of security. The introduction of the article contains a theoretical framework of the issue with a description of the motivation and behavior of the offender. It goes on to list the most common ways of conducting cyber-attacks. Significant attacks on hospitals in the Czech Republic and around the world are also mentioned. It focuses on their motivation, success and damage caused. Finally, the common characteristic strengths and weaknesses of the SWOT method are evaluated, followed by opportunities and threats. In the end, the current extended recommendations follow the current routine operation of security procedures with an emphasis on changes and new threats in the global environment.
{"title":"CYBER SECURITY IN THE HEALTHCARE SECTOR - CURRENT THREATS","authors":"B. Kotková","doi":"10.5593/sgem2022/2.1/s07.02","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s07.02","url":null,"abstract":"Information technology is a common part of human activities today. In most countries of the world, the security, health, and industrial sectors can be established here. The dependence of these sectors on information technology has been significantly strengthened by the global covid-19 pandemic and the current war in Ukraine. Data digitization has brought positives such as availability, fast transmission, and processing of necessary information. As well as negatives as constant attempts to steal, destroy or abuse them. Health care is one of the sectors where it is the target of not only enrichment attacks, but also terrorist motives - the attack causes chaos and panic among the population. The number of such attacks increased dramatically during the covid - 19 pandemic and the military conflict in Ukraine. The article is therefore intended to point out the need for constant evaluation of changing environmental influences and motivations for attacks with regard to the topicality of security. The introduction of the article contains a theoretical framework of the issue with a description of the motivation and behavior of the offender. It goes on to list the most common ways of conducting cyber-attacks. Significant attacks on hospitals in the Czech Republic and around the world are also mentioned. It focuses on their motivation, success and damage caused. Finally, the common characteristic strengths and weaknesses of the SWOT method are evaluated, followed by opportunities and threats. In the end, the current extended recommendations follow the current routine operation of security procedures with an emphasis on changes and new threats in the global environment.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115705920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s08.13
Tamara Ilieva
The Geographic Information Systems (GIS) are one of the main tools through which changes in the urban environment can be tracked. They can be used to analyze processes not only as territorial phenomena, but also to derive spatio-temporal models and trends. Free and open access data was used for the present study � from Copernicus, OpenStreetMap and the Urban Development Plan of Sofia Municipality were used as sources. Data layers for the terrain, land cover, buildings, street network and others were analyzed together. Data from the National Statistical Institute was also used to support the analysis of the dynamics of urban environment. Sofia is the capital of Bulgaria and for the last 15 years it has been the most dynamically changing city in the country. By using the data described above and the functionality of GIS, it is possible to automate the process of locating the areas with the most intensive changes. Two-dimensional and three-dimensional modeling was used to adequately demonstrate the temporal and spatial dynamics of the urban environment. The data is processed by regions and then combined for the whole territory of Sofia Municipality. Free opensource software QGIS is used for the analysis and deriving the models. Qgis2threejs was used in the three-dimensional representation and modeling of the data. The time interval for which data were taken is from 2006 to the present, which makes the study relevant. The results can be useful for decision making related to planning the development of the territory and even for improving the living environment.
{"title":"ANALYSIS AND GIS-BASED MODELING OF FREE AND OPEN DATA FOR TRACKING THE DYNAMICS OF THE URBAN ENVIRONMENT: CASE STUDY FOR SOFIA, BULGARIA","authors":"Tamara Ilieva","doi":"10.5593/sgem2022/2.1/s08.13","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s08.13","url":null,"abstract":"The Geographic Information Systems (GIS) are one of the main tools through which changes in the urban environment can be tracked. They can be used to analyze processes not only as territorial phenomena, but also to derive spatio-temporal models and trends. \u0000Free and open access data was used for the present study � from Copernicus, OpenStreetMap and the Urban Development Plan of Sofia Municipality were used as sources. Data layers for the terrain, land cover, buildings, street network and others were analyzed together. Data from the National Statistical Institute was also used to support the analysis of the dynamics of urban environment. \u0000Sofia is the capital of Bulgaria and for the last 15 years it has been the most dynamically changing city in the country. By using the data described above and the functionality of GIS, it is possible to automate the process of locating the areas with the most intensive changes. \u0000Two-dimensional and three-dimensional modeling was used to adequately demonstrate the temporal and spatial dynamics of the urban environment. The data is processed by regions and then combined for the whole territory of Sofia Municipality. Free opensource software QGIS is used for the analysis and deriving the models. Qgis2threejs was used in the three-dimensional representation and modeling of the data. \u0000The time interval for which data were taken is from 2006 to the present, which makes the study relevant. The results can be useful for decision making related to planning the development of the territory and even for improving the living environment.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127444289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s09.24
A. Kopáčik, P. Kajánek, J. Brindza, J. Erdélyi, P. Kyrinovič
The article deals with the developing and applying of the mobile mapping system developed at the Department of Surveying of the Slovak University of Technology in Bratislava. The article presents a low-cost mobile mapping system for simultaneous localization and mapping of the indoor environment. Existing systems are costly and have robust construction and high-power requirements, making them unavailable for some applications. The proposed measuring system consists of three orthogonally placed 2D lidars, a robotic platform with two rotary encoders, and an inertial measuring unit. The lidars scan the environment in three mutually perpendicular directions during the measurement. Based on the transformation between a pair of consecutive scans, the position of the system is updated. Then the model of the environment is updated using a new lidar scan. The estimated transformation parameters are translations expressing the change in position of the system and rotation, which represents the change in orientation of the measuring system. The errors in determining the transformation parameters represent the positioning errors, which are transmitted to the calculated model. For this reason, additional sensors are used (inertial measuring unit, speed sensors), based on which the error in position and orientation is corrected.
{"title":"DEVELOPMENT OF A MOBILE MAPPING SYSTEM FOR SIMULTANEOUS LOCALIZATION AND MAPPING","authors":"A. Kopáčik, P. Kajánek, J. Brindza, J. Erdélyi, P. Kyrinovič","doi":"10.5593/sgem2022/2.1/s09.24","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s09.24","url":null,"abstract":"The article deals with the developing and applying of the mobile mapping system developed at the Department of Surveying of the Slovak University of Technology in Bratislava. The article presents a low-cost mobile mapping system for simultaneous localization and mapping of the indoor environment. Existing systems are costly and have robust construction and high-power requirements, making them unavailable for some applications. The proposed measuring system consists of three orthogonally placed 2D lidars, a robotic platform with two rotary encoders, and an inertial measuring unit. The lidars scan the environment in three mutually perpendicular directions during the measurement. Based on the transformation between a pair of consecutive scans, the position of the system is updated. Then the model of the environment is updated using a new lidar scan. The estimated transformation parameters are translations expressing the change in position of the system and rotation, which represents the change in orientation of the measuring system. The errors in determining the transformation parameters represent the positioning errors, which are transmitted to the calculated model. For this reason, additional sensors are used (inertial measuring unit, speed sensors), based on which the error in position and orientation is corrected.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114411767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s09.29
Yuri Tsanovski
The Republic of Bulgaria is located on the periphery of the Eurasian tectonic plate, and part of it falls within the seismically active Aegean extensional region [1]. The study of modern crustal movements is important in terms of elucidating the geodynamic behaviour of the country on a regional and global scale. It should be taken into account when establishing and maintaining geodetic networks for high precision applications. It should be noted that for the main carrier of the Bulgarian geodetic system - the State GPS network, only the velocities of the points of its Basic class are derived and published. Intra-plate displacements show an increase from about 1 millimetre per year in Northern Bulgaria to about 5 millimetres per year in Southern Bulgaria - mostly in the geodynamically very active South-West region [2]. For the present study, we have selected an area in the southeastern part of Bulgaria, a region with relatively homogeneous horizontal velocities with respect to Eurasia. The area is 1500 sq. km, with the presence of points from the basic class (9 points) and secondclass (28 points) GPS network. Class I level surveys are currently being carried out in the area, and the coordinates of the points in the State GPS network will be used as fixed points to determine the geodetic coordinates and heights of the bench marks from the level surveys. The aim of the study is to show the effect of the manifested intra-plate deformations on the coordinates of the State GPS network, as well as the need to develop a strategy/methodology to account for point displacements over time and calculate them, taking into account the passive nature of the State GPS network of the Republic of Bulgaria.
{"title":"INFLUENCE OF INTRAPLATE DEFORMATIONS ON THE STATE GPS NETWORK IN THE REPUBLIC OF BULGARIA","authors":"Yuri Tsanovski","doi":"10.5593/sgem2022/2.1/s09.29","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s09.29","url":null,"abstract":"The Republic of Bulgaria is located on the periphery of the Eurasian tectonic plate, and part of it falls within the seismically active Aegean extensional region [1]. The study of modern crustal movements is important in terms of elucidating the geodynamic behaviour of the country on a regional and global scale. It should be taken into account when establishing and maintaining geodetic networks for high precision applications. \u0000It should be noted that for the main carrier of the Bulgarian geodetic system - the State GPS network, only the velocities of the points of its Basic class are derived and published. Intra-plate displacements show an increase from about 1 millimetre per year in Northern Bulgaria to about 5 millimetres per year in Southern Bulgaria - mostly in the geodynamically very active South-West region [2]. \u0000For the present study, we have selected an area in the southeastern part of Bulgaria, a region with relatively homogeneous horizontal velocities with respect to Eurasia. The area is 1500 sq. km, with the presence of points from the basic class (9 points) and secondclass (28 points) GPS network. Class I level surveys are currently being carried out in the area, and the coordinates of the points in the State GPS network will be used as fixed points to determine the geodetic coordinates and heights of the bench marks from the level surveys. \u0000The aim of the study is to show the effect of the manifested intra-plate deformations on the coordinates of the State GPS network, as well as the need to develop a strategy/methodology to account for point displacements over time and calculate them, taking into account the passive nature of the State GPS network of the Republic of Bulgaria.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127515669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s09.030
A. Bannikov, V. Gordeev
Research Object and Relevance. Geotechnical monitoring is an integral part of the safe operation of a facility. When the deformation network is a network of high-rise benchmarks, in addition to vertical displacements, slopes and deflections of intervals are calculated. Often, geotechnical researchers and engineers pay more attention to the quantitative values of various deformation characteristics, comparing calculated values with geomechanical models. In our article, we want to pay attention to the assessment of the quality of the calculated parameters: after all, if the geomechanical model can help in choosing the controlled deformation parameters and their critical values, the accuracy assessment allows you to choose the most effective monitoring technique and technology. Research Methods. In this article, we considered the influence of covariance moments on the assessment of the accuracy of vertical displacements, slopes and deflections depending on the equalized height values. Results. The results of the study obtained by us analytically and graphically showed that the replacement of the covariance matrix by the diagonal variance matrix does not affect the estimation of the accuracy of vertical displacements, while the RMS of the interval slopes and deflections significantly depend on the covariance. Conclusion. We draw the reader's attention to the fact that for a rigorous assessment of the accuracy of the calculated deformation values, information is needed on the total covariance matrix obtained from the results of levelling measurements adjustment in each series. We also recommend that geotechnical engineers pay attention to relative deformation networks - in order to obtain more accurate estimates of slopes and deflections, it is enough to level only the deformation network itself without using control points
{"title":"THE INFLUENCE OF COVARIANCE ON THE ESTIMATION OF THE ACCURACY OF VERTICAL DISPLACEMENTS, SLOPES AND DEFLECTIONS AS FUNCTIONS OF LEVELLING RESULTS IN GEOTECHNICAL MONITORING","authors":"A. Bannikov, V. Gordeev","doi":"10.5593/sgem2022/2.1/s09.030","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s09.030","url":null,"abstract":"Research Object and Relevance. Geotechnical monitoring is an integral part of the safe operation of a facility. When the deformation network is a network of high-rise benchmarks, in addition to vertical displacements, slopes and deflections of intervals are calculated. Often, geotechnical researchers and engineers pay more attention to the quantitative values of various deformation characteristics, comparing calculated values with geomechanical models. In our article, we want to pay attention to the assessment of the quality of the calculated parameters: after all, if the geomechanical model can help in choosing the controlled deformation parameters and their critical values, the accuracy assessment allows you to choose the most effective monitoring technique and technology. \u0000Research Methods. In this article, we considered the influence of covariance moments on the assessment of the accuracy of vertical displacements, slopes and deflections depending on the equalized height values. \u0000Results. The results of the study obtained by us analytically and graphically showed that the replacement of the covariance matrix by the diagonal variance matrix does not affect the estimation of the accuracy of vertical displacements, while the RMS of the interval slopes and deflections significantly depend on the covariance. \u0000Conclusion. We draw the reader's attention to the fact that for a rigorous assessment of the accuracy of the calculated deformation values, information is needed on the total covariance matrix obtained from the results of levelling measurements adjustment in each series. We also recommend that geotechnical engineers pay attention to relative deformation networks - in order to obtain more accurate estimates of slopes and deflections, it is enough to level only the deformation network itself without using control points","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127924320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s08.19
Josip Lisjak, H. Tomić, Ante Rončević, M. Roić
The paper presents the results of research on the possibility of calculating the investment potential of a particular area based on its spatial characteristics. The level of spatial unit in this research is local administrative unit (cities or municipalities), while the geographic coverage is entire area of Republic of Croatia. Regarding the method, the results could be applied internationally and are not limited to national borders. Furthermore, when deciding on investing, it is important to know the risk. This risk in the pre-investment cycle is generally estimated on the basis of well-known wellestablished economic methods - without applying multiple criteria in the potential assessment and, among others, criteria of spatial characteristics as one of the most influential ones. Therefore, there was a need to model the investment potential as a precondition for risk calculations based on spatial criteria, which was carried out through this research using multi-criteria GIS analysis. The research in this paper is focused on testing the correlation of spatial features of certain local unit with its development index. The source data used are existing spatial data in the National Spatial Data Infrastructure (NSDI) platform, open data, and the development index as a composite index. The paper shows the results of OLS method and conclusions about influence from certain spatial characteristics on development index, and accordingly the location investment potential based on the results can be modelled.
{"title":"TOWARDS THE INVESTMENT POTENTIAL ASSESSMENT USING SPATIAL DATA MULTI-CRITERIA ANALYSIS AND LINEAR REGRESSION","authors":"Josip Lisjak, H. Tomić, Ante Rončević, M. Roić","doi":"10.5593/sgem2022/2.1/s08.19","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s08.19","url":null,"abstract":"The paper presents the results of research on the possibility of calculating the investment potential of a particular area based on its spatial characteristics. The level of spatial unit in this research is local administrative unit (cities or municipalities), while the geographic coverage is entire area of Republic of Croatia. Regarding the method, the results could be applied internationally and are not limited to national borders. Furthermore, when deciding on investing, it is important to know the risk. This risk in the pre-investment cycle is generally estimated on the basis of well-known wellestablished economic methods - without applying multiple criteria in the potential assessment and, among others, criteria of spatial characteristics as one of the most influential ones. Therefore, there was a need to model the investment potential as a precondition for risk calculations based on spatial criteria, which was carried out through this research using multi-criteria GIS analysis. The research in this paper is focused on testing the correlation of spatial features of certain local unit with its development index. The source data used are existing spatial data in the National Spatial Data Infrastructure (NSDI) platform, open data, and the development index as a composite index. The paper shows the results of OLS method and conclusions about influence from certain spatial characteristics on development index, and accordingly the location investment potential based on the results can be modelled.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115319617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s10.42
J. Luksa, V. Pukite
Cadastral surveying of land is the determination, establishment, and survey of the legal boundaries of a land unit. Cadastral surveying of land is performed that it is necessary to divide a unit of land, merge land units or rearrange the boundaries, if it is necessary to update the situation or encumbrance plan. In the process of cadastral surveying of land, an area plan is prepared. Sometimes the terrain situation is complicated, and it is difficult for a surveyor to access the object. When the terrain situation is difficult, a digital terrain model can be used in the surveyor's work. The digital relief model is a set of points with a step between points of 20 meters. Each point has known plane coordinates (X, Y) and altitude (Z). The points cover the area in the form of a regular network. In Latvia the digital relief model is linked to the LKS-92 TM coordinate system, the normal height system LAS-2000.5 [1]. In the digital relief model, it is possible to see such elements of the situation as ditches, rivers, roads. The main result of research is, if the object is in a place with thick overgrowth, such as a forest, then the digital relief model has well-visible ditches or other elements of the situation, which greatly facilitates the surveyor's work. Thus, the surveyor can draw this ditch from the model, not many measurements are required, the surveyor's time is saved. Very often these types of objects are difficult to access. Digital relief model is a good helper in daily work.
{"title":"POSSIBILITIES OF APPLICATION OF DIGITAL RELIEF MODEL IN CADASTRAL SURVEYING OF LAND","authors":"J. Luksa, V. Pukite","doi":"10.5593/sgem2022/2.1/s10.42","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s10.42","url":null,"abstract":"Cadastral surveying of land is the determination, establishment, and survey of the legal boundaries of a land unit. Cadastral surveying of land is performed that it is necessary to divide a unit of land, merge land units or rearrange the boundaries, if it is necessary to update the situation or encumbrance plan. In the process of cadastral surveying of land, an area plan is prepared. Sometimes the terrain situation is complicated, and it is difficult for a surveyor to access the object. When the terrain situation is difficult, a digital terrain model can be used in the surveyor's work. \u0000The digital relief model is a set of points with a step between points of 20 meters. Each point has known plane coordinates (X, Y) and altitude (Z). The points cover the area in the form of a regular network. In Latvia the digital relief model is linked to the LKS-92 TM coordinate system, the normal height system LAS-2000.5 [1]. \u0000In the digital relief model, it is possible to see such elements of the situation as ditches, rivers, roads. \u0000The main result of research is, if the object is in a place with thick overgrowth, such as a forest, then the digital relief model has well-visible ditches or other elements of the situation, which greatly facilitates the surveyor's work. Thus, the surveyor can draw this ditch from the model, not many measurements are required, the surveyor's time is saved. Very often these types of objects are difficult to access. Digital relief model is a good helper in daily work.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"476 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116189856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-15DOI: 10.5593/sgem2022/2.1/s07.01
P. Futas, Vladimír Šabík, J. Petrík, P. Blaško, Lukáš Fogaraš
Computer simulation of foundry processes is an essential part of a modern foundry. The role of the gating system, its design and different elements are important in casting. Experimental verification of the designed gating system for new castings is costly, timeconsuming and economically inefficient. Therefore, these processes in the foundry are replaced by computer simulation. A detailed analysis of the simulation results makes it possible to predict various risks that may cause a failure in the quality of casting production and thus the quality of the entire production process. The article deals with by simulating the filling and solidification of the new cast iron casting "Fun Pump Support". Two types of gating systems were created for the given casting, which were subsequently subjected to computer simulation of filling and solidification. 3D models of the Casting and Gating Systems were designed in SolidWorks CAD software. Computer simulation of filling and solidification was performed using the simulation program NovaFlow&Solid CV 4.6r42. The results of the simulations showed that the design of the gating system reduced the amount of liquid metal used for casting, which has significant economic effects in series production. Several simulations of filling and solidification of the developed technological system were designed, while the density of the network, the conditions of casting and solidification were determined so as to be as close as possible to the actual needs of the foundry. The gating system was modified to eliminate casting defects (shrinkages) that occurred during the solidification process, as well as to increasing the utilization of liquid metal.
{"title":"COMPUTER SIMULATION USE IN DESIGN GATING SYSTEM OF CAST MADE FROM THE CAST IRON","authors":"P. Futas, Vladimír Šabík, J. Petrík, P. Blaško, Lukáš Fogaraš","doi":"10.5593/sgem2022/2.1/s07.01","DOIUrl":"https://doi.org/10.5593/sgem2022/2.1/s07.01","url":null,"abstract":"Computer simulation of foundry processes is an essential part of a modern foundry. The role of the gating system, its design and different elements are important in casting. Experimental verification of the designed gating system for new castings is costly, timeconsuming and economically inefficient. Therefore, these processes in the foundry are replaced by computer simulation. A detailed analysis of the simulation results makes it possible to predict various risks that may cause a failure in the quality of casting production and thus the quality of the entire production process. The article deals with by simulating the filling and solidification of the new cast iron casting \"Fun Pump Support\". Two types of gating systems were created for the given casting, which were subsequently subjected to computer simulation of filling and solidification. 3D models of the Casting and Gating Systems were designed in SolidWorks CAD software. Computer simulation of filling and solidification was performed using the simulation program NovaFlow&Solid CV 4.6r42. The results of the simulations showed that the design of the gating system reduced the amount of liquid metal used for casting, which has significant economic effects in series production. Several simulations of filling and solidification of the developed technological system were designed, while the density of the network, the conditions of casting and solidification were determined so as to be as close as possible to the actual needs of the foundry. The gating system was modified to eliminate casting defects (shrinkages) that occurred during the solidification process, as well as to increasing the utilization of liquid metal.","PeriodicalId":375880,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sensing","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125420501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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