Pub Date : 2022-09-16DOI: 10.7251/afts.2022.1426.033t
Zlatan Talić, Medina Mešić
The aim of the paper is to show the landslide that damaged the transmission line pole, and its remediation. The landslide is located in Tuzla, and the microlocation of the facility is located in the area of the Dolina and the settlement of Vrapče. The remediation was made on the basis of a study on the characteristics of the terrain and the design of the basic structure of the pillar. Remediation measures include: construction of protective canals, drainage of water from individual branched canals on the surface of the sliding body, closing cracks and accepting water from them, and planning the entire surface of the landslide. Based on the analysis of the problem at the location in question, the most optimal and safest solution for the remediation of the mentioned slope should be provided.
{"title":"LANDSLIDE REMEDIATION ON LOCATION OF TRANSMISSION LINE POLE SM 134 ON DV 110 kV TS TUZLA C. – TS DUBRAVE","authors":"Zlatan Talić, Medina Mešić","doi":"10.7251/afts.2022.1426.033t","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.033t","url":null,"abstract":"The aim of the paper is to show the landslide that damaged the transmission line pole, and its remediation. The landslide is located in Tuzla, and the microlocation of the facility is located in the area of the Dolina and the settlement of Vrapče. The remediation was made on the basis of a study on the characteristics of the terrain and the design of the basic structure of the pillar. Remediation measures include: construction of protective canals, drainage of water from individual branched canals on the surface of the sliding body, closing cracks and accepting water from them, and planning the entire surface of the landslide. Based on the analysis of the problem at the location in question, the most optimal and safest solution for the remediation of the mentioned slope should be provided.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46281202","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 : 2022-09-16DOI: 10.7251/afts.2022.1426.079s
O. Sotnikova, E. Zhidko, E. Prokshits, I. Zolotukhina
Topical issues of formation of sustainable urban environment were analyzed. In this work, the modern urban environment was considered in the form of an open dynamic system, where its state is determined by other specific laws based on the mutual influence of the components of the system taking into account external influences. The safe city environment acts as natural social and technical structure. This concept assumes unity and interaction/interference of three main bases (natural aspect of X, social aspect of Y and technological aspect of Z) subject to external influences. The analysis of data of monitoring gives a qualitative and quantitative picture of current state of the urban environment. The approach to city management based on GIS-systems is also considered, which make it possible to collect, process, analyze and display spatially coordinated data and allow the most efficient interpretation of information and knowledge about territories for further assessment of the state of the habitat.
{"title":"ADMINISTRATION OF SUSTAINABLE DEVELOPMENT OF TERRITORIES AS ONE OF THE APPROACHES FOR CREATING A BIOSPHERE-COMPATIBLE AND COMFORTABLE URBAN ENVIRONMENT","authors":"O. Sotnikova, E. Zhidko, E. Prokshits, I. Zolotukhina","doi":"10.7251/afts.2022.1426.079s","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.079s","url":null,"abstract":"Topical issues of formation of sustainable urban environment were analyzed. In this work, the modern urban environment was considered in the form of an open dynamic system, where its state is determined by other specific laws based on the mutual influence of the components of the system taking into account external influences. The safe city environment acts as natural social and technical structure. This concept assumes unity and interaction/interference of three main bases (natural aspect of X, social aspect of Y and technological aspect of Z) subject to external influences. The analysis of data of monitoring gives a qualitative and quantitative picture of current state of the urban environment. The approach to city management based on GIS-systems is also considered, which make it possible to collect, process, analyze and display spatially coordinated data and allow the most efficient interpretation of information and knowledge about territories for further assessment of the state of the habitat.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44461918","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 : 2022-09-16DOI: 10.7251/afts.2022.1426.043i
Z. Ivković, D. Tošić, Dejan Dramlić
The issues addressed in this paper are dedicated to the balancing and analysis of coal reserves for the system of underground exploitation in the Republic of Serbia, both in active mines - deposits and in prospective deposits for activation in terms of production. The basic message emphasizes the importance of coal as the leading domestic energy source for the production of mainly electricity and thermal energy to a lesser extent. In addition to the balance of coal reserves in the deposits, importance was given to the quality of coal as an important thermal energy factor. For active mines-deposits, thermal values are given for assortments of piece, cube and fine coal, while for inactive deposits, quality values are shown for coal from coal seams. Based on the obtained research results, it is concluded that coal will maintain the leading position for electricity production in the energy sector of the Republic of Serbia in the coming decades, while coal from underground exploitation should increase its share in the energy balance.
{"title":"ANALYSIS OF COAL RESERVES WITH THE POTENTIAL FOR UNDERGROUND EXPLOITATION IN THE REPUBLIC OF SERBIA","authors":"Z. Ivković, D. Tošić, Dejan Dramlić","doi":"10.7251/afts.2022.1426.043i","DOIUrl":"https://doi.org/10.7251/afts.2022.1426.043i","url":null,"abstract":"The issues addressed in this paper are dedicated to the balancing and analysis of coal reserves for the system of underground exploitation in the Republic of Serbia, both in active mines - deposits and in prospective deposits for activation in terms of production. The basic message emphasizes the importance of coal as the leading domestic energy source for the production of mainly electricity and thermal energy to a lesser extent. In addition to the balance of coal reserves in the deposits, importance was given to the quality of coal as an important thermal energy factor. For active mines-deposits, thermal values are given for assortments of piece, cube and fine coal, while for inactive deposits, quality values are shown for coal from coal seams. Based on the obtained research results, it is concluded that coal will maintain the leading position for electricity production in the energy sector of the Republic of Serbia in the coming decades, while coal from underground exploitation should increase its share in the energy balance.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42545350","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}
The work presents an experimental designation of the aerodynamic drag coefficient for two configurations of the Ahmed body model, with slant angle of 25o and with the inactive synthetic jet generator. When analyzing the aerodynamic drag of vehicles, most authors focus on higher Reynolds numbers, describing lower values only by designated trend lines. Which is why the main contribution of this experimental work was to designate the Ahmed’s body drag coefficient for low Reynolds numbers and to verify the obtained results with other authors experiments especially with the trend lines for Reynolds number in the range 0,35x105 – 1,8x105. For data taken from the literature, it can be seen that the value of the drag coefficient for the Ahmed body model decreases when the Reynolds number increases. The results obtained during the experiment show the opposite tendency.
{"title":"Experimental study on Ahmed’s body drag coefficient","authors":"D. Wysocki, A. Szymanek","doi":"10.31648/ts.7897","DOIUrl":"https://doi.org/10.31648/ts.7897","url":null,"abstract":"The work presents an experimental designation of the aerodynamic drag coefficient for two configurations of the Ahmed body model, with slant angle of 25o and with the inactive synthetic jet generator. When analyzing the aerodynamic drag of vehicles, most authors focus on higher Reynolds numbers, describing lower values only by designated trend lines. Which is why the main contribution of this experimental work was to designate the Ahmed’s body drag coefficient for low Reynolds numbers and to verify the obtained results with other authors experiments especially with the trend lines for Reynolds number in the range 0,35x105 – 1,8x105. For data taken from the literature, it can be seen that the value of the drag coefficient for the Ahmed body model decreases when the Reynolds number increases. The results obtained during the experiment show the opposite tendency.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79638683","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}
The subject of this paper is to analyze the way of implementation and operation of hardware DRM protection systems on the example of selected printer cartridges. Thanks to the analysis, it is possible to understand the way of operation of typical security chips used in printer cartridges. Using the knowledge gained, it becomes possible to modify the data on the security chips and thus reset the protection, so that the printer sees the chip with the modified data as a new one. However, the process itself was difficult due to the lack of publicly available materials on this topic. In this paper, different approaches to DRM security analysis have been used, so that the reader can try to perform the described steps to analyze other hardware DRM systems by himself. In addition, devices called resetters have been designed and fabricated to quickly reset the analyzed security chips. Their design and documentation is available on the author's Github.
{"title":"Methods of implementation and operation of hardware DRM protection on the example of printer cartridges","authors":"Wojciech Cybowski","doi":"10.31648/ts.7634","DOIUrl":"https://doi.org/10.31648/ts.7634","url":null,"abstract":"The subject of this paper is to analyze the way of implementation and operation of hardware DRM protection systems on the example of selected printer cartridges. Thanks to the analysis, it is possible to understand the way of operation of typical security chips used in printer cartridges. Using the knowledge gained, it becomes possible to modify the data on the security chips and thus reset the protection, so that the printer sees the chip with the modified data as a new one. However, the process itself was difficult due to the lack of publicly available materials on this topic. In this paper, different approaches to DRM security analysis have been used, so that the reader can try to perform the described steps to analyze other hardware DRM systems by himself. In addition, devices called resetters have been designed and fabricated to quickly reset the analyzed security chips. Their design and documentation is available on the author's Github.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83396157","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}
This paper presents the results of diagnostic examinations conducted on the water pipe made of grey cast iron that were operated in conditions for 260 thousand hours. The tube was exposed in a soil. The phase composition of the deposit layers formed on both sides of the tube walls (outside and inside) was examined using optical and confocal microscopy and X-ray diffraction. The obtained XRD test results showed that mainly -FeOOH) and γ-FeOOH is formed on the inside of the pipe wall. In turn, on the outside, in addition to the above-mentioned compounds, also SiO2 is formed. The results of these examinations have shown a higher degradation of pipe on the outer side. The arithmetic mean deviation of the profile from the mean line was 6.23 µm and 8.07 µm for the inner and outer side of the pipe wall, respectively. The work demonstrates the usefulness of material science, especially X-ray structure, topography and surface studies, in characterizing the degradation processes of layers formed on gray cast iron exploited in the water supply industry.
{"title":"Characterization of deposit layers formed on grey cast iron","authors":"M. Gwoździk","doi":"10.31648/ts.7896","DOIUrl":"https://doi.org/10.31648/ts.7896","url":null,"abstract":"This paper presents the results of diagnostic examinations conducted on the water pipe made of grey cast iron that were operated in conditions for 260 thousand hours. The tube was exposed in a soil. The phase composition of the deposit layers formed on both sides of the tube walls (outside and inside) was examined using optical and confocal microscopy and X-ray diffraction. The obtained XRD test results showed that mainly -FeOOH) and γ-FeOOH is formed on the inside of the pipe wall. In turn, on the outside, in addition to the above-mentioned compounds, also SiO2 is formed. The results of these examinations have shown a higher degradation of pipe on the outer side. The arithmetic mean deviation of the profile from the mean line was 6.23 µm and 8.07 µm for the inner and outer side of the pipe wall, respectively. The work demonstrates the usefulness of material science, especially X-ray structure, topography and surface studies, in characterizing the degradation processes of layers formed on gray cast iron exploited in the water supply industry.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86827729","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}
The article proposes a vibration measurement system for electric vehicles powered by motors with rotating housing. The motors were designed and patented by the author. The presented solution is characterized by low cost, high reliability and minimal power consumption. Block diagrams of the designed system were presented and described in detail.
{"title":"Concept of a system for remote vibration measurement in electric vehicles driven by rotaring body motors","authors":"Z. Syroka","doi":"10.31648/ts.7582","DOIUrl":"https://doi.org/10.31648/ts.7582","url":null,"abstract":"The article proposes a vibration measurement system for electric vehicles powered by motors with rotating housing. The motors were designed and patented by the author. The presented solution is characterized by low cost, high reliability and minimal power consumption. Block diagrams of the designed system were presented and described in detail.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78678857","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}
Piotr Gorzelanczyk, Alicja Herudaj, Łukasz Marczak
The problem of disability affects more and more people every year. One of the obstacles to their proper functioning are everyday problems connected with mobility. The aim of this article is to find out the opinion of disabled people living in Northern Wielkopolska on the quality of infrastructure, its adaptation and accessibility for the disabled as well as to present improvements which would enable disabled people to use public transport services safely, freely and comfortably. On the basis of the survey, it may be concluded that the basic problem of road infrastructure from the point of view of people with disabilities is the low quality of access to stops, roads, pavements and high kerbs, poor adaptation of public space or very wide transport and lack of reconstruction of some places and road fragments. Added to this is the average quality of adaptation of public transport for people with disabilities.
{"title":"Evaluation of the public transport system in terms of its adaptation to serve people with disabilities in Northern Wielkopolska (Polish case study)","authors":"Piotr Gorzelanczyk, Alicja Herudaj, Łukasz Marczak","doi":"10.31648/ts.7581","DOIUrl":"https://doi.org/10.31648/ts.7581","url":null,"abstract":"The problem of disability affects more and more people every year. One of the obstacles to their proper functioning are everyday problems connected with mobility. The aim of this article is to find out the opinion of disabled people living in Northern Wielkopolska on the quality of infrastructure, its adaptation and accessibility for the disabled as well as to present improvements which would enable disabled people to use public transport services safely, freely and comfortably. On the basis of the survey, it may be concluded that the basic problem of road infrastructure from the point of view of people with disabilities is the low quality of access to stops, roads, pavements and high kerbs, poor adaptation of public space or very wide transport and lack of reconstruction of some places and road fragments. Added to this is the average quality of adaptation of public transport for people with disabilities.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75761643","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}
A control system for a three-phase induction motor was designed with the use of optoelectronic components and methods. Motor speed was controlled by changing supply voltage frequency. This solution ensures a wide range of rotational speeds, constant torque and effective start-up of an induction motor. The designed motor is supplied with direct current converted to three-phase alternating current. The adopted solution relies on renewable sources of energy to produce DC power. The designed electric motor is controlled by changing supply voltage frequency. Input voltage with the desired waveform is generated by the motor’s electronic system that relies on two microcontrollers. The presented solution features a user interface.
{"title":"Optoelectronic system for controlling an alternating current motor. Electrical and electronic design","authors":"Z. Syroka","doi":"10.31648/ts.7597","DOIUrl":"https://doi.org/10.31648/ts.7597","url":null,"abstract":"A control system for a three-phase induction motor was designed with the use of optoelectronic components and methods. Motor speed was controlled by changing supply voltage frequency. This solution ensures a wide range of rotational speeds, constant torque and effective start-up of an induction motor. The designed motor is supplied with direct current converted to three-phase alternating current. The adopted solution relies on renewable sources of energy to produce DC power. The designed electric motor is controlled by changing supply voltage frequency. Input voltage with the desired waveform is generated by the motor’s electronic system that relies on two microcontrollers. The presented solution features a user interface.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86146621","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}
The factorization problem belongs to a group of problems important in the security of information systems and cryptography. The article describes a new number factorization algorithm designed based on numerical experiments. We present an extension of number factorization using triangular numbers features. The described algorithm can be used to increase the security of key generation for the RSA algorithm.
{"title":"About special properties of triangular numbers for immediate factorization","authors":"Artur Samojluk","doi":"10.31648/ts.7278","DOIUrl":"https://doi.org/10.31648/ts.7278","url":null,"abstract":"The factorization problem belongs to a group of problems important in the security of information systems and cryptography. The article describes a new number factorization algorithm designed based on numerical experiments. We present an extension of number factorization using triangular numbers features. The described algorithm can be used to increase the security of key generation for the RSA algorithm.","PeriodicalId":41669,"journal":{"name":"Archives for Technical Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81353955","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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