Pub Date : 2023-01-01DOI: 10.12700/aph.20.6.2023.20.6
Vesna Jovanovć, D. Janošević, D. Marinković, N. Petrović, J. Pavlovic
{"title":"Railway Load Analysis During the Operation of an Excavator Resting on the Railway Track","authors":"Vesna Jovanovć, D. Janošević, D. Marinković, N. Petrović, J. Pavlovic","doi":"10.12700/aph.20.6.2023.20.6","DOIUrl":"https://doi.org/10.12700/aph.20.6.2023.20.6","url":null,"abstract":"","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66136669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.12700/aph.20.6.2023.6.1
{"title":"Study of the Mechanical Characteristics of Sandwich Structures FDM 3D-printed","authors":"","doi":"10.12700/aph.20.6.2023.6.1","DOIUrl":"https://doi.org/10.12700/aph.20.6.2023.6.1","url":null,"abstract":"","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66136779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.12700/aph.20.6.2023.6.13
Marina Stanojevic, D. Capko, I. Lendák, Sebastijan Stoja, Bojan Jelacic
{"title":"Fighting Insider Threats, with Zero-Trust in Microservice-based, Smart Grid OT Systems","authors":"Marina Stanojevic, D. Capko, I. Lendák, Sebastijan Stoja, Bojan Jelacic","doi":"10.12700/aph.20.6.2023.6.13","DOIUrl":"https://doi.org/10.12700/aph.20.6.2023.6.13","url":null,"abstract":"","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66137021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.12700/aph.20.7.2023.7.7
Henrieta Hrablik Chovanová, H. Fidlerová, D. Babčanová, Daniel Banáš
{"title":"Operations Research in Online Environment Using ICT in Higher Technical Education","authors":"Henrieta Hrablik Chovanová, H. Fidlerová, D. Babčanová, Daniel Banáš","doi":"10.12700/aph.20.7.2023.7.7","DOIUrl":"https://doi.org/10.12700/aph.20.7.2023.7.7","url":null,"abstract":"","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66139232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.12700/aph.20.9.2023.9.5
Semih Bal, Zoltan Adam Tamus
: Cables are critical elements of the network. Therefore, their integrity is of utmost importance. Many factors influence the insulation integrity of the cables, such as manufacturing procedures, operating conditions, and various stresses, during their lifetime. Increasing the number of renewables resulted in increased distributed generation, which may cause reverse power flow. The electricity demand is constantly growing with the increased number of novel appliances on the consumer side, electric vehicles, etc. This fact can create short-term overloads, which may cause a temperature elevation beyond the cable's maximum operating limit, compromising insulation degradation. Therefore, this research investigates the impact of short-term cyclic thermal ageing on SZRMtKVM-J 4 x 6 mm PVC insulated low voltage cable using the polarization/depolarization current measurement (PDC). Accelerated thermal ageing tests were performed by placing the samples inside the temperature-controlled oven for 6 hours/round. After each round, the polarization and depolarization currents were measured. DIRANA Dielectric Response Analyzer by Omicron has been employed for the measurements. The results have shown an increase in the polarization and depolarization current.
{"title":"Analyzing the Impact of Short-Term Cyclic Thermal Ageing on PVC Insulated Low Voltage Samples with Polarization/Depolarization Current Measurement","authors":"Semih Bal, Zoltan Adam Tamus","doi":"10.12700/aph.20.9.2023.9.5","DOIUrl":"https://doi.org/10.12700/aph.20.9.2023.9.5","url":null,"abstract":": Cables are critical elements of the network. Therefore, their integrity is of utmost importance. Many factors influence the insulation integrity of the cables, such as manufacturing procedures, operating conditions, and various stresses, during their lifetime. Increasing the number of renewables resulted in increased distributed generation, which may cause reverse power flow. The electricity demand is constantly growing with the increased number of novel appliances on the consumer side, electric vehicles, etc. This fact can create short-term overloads, which may cause a temperature elevation beyond the cable's maximum operating limit, compromising insulation degradation. Therefore, this research investigates the impact of short-term cyclic thermal ageing on SZRMtKVM-J 4 x 6 mm PVC insulated low voltage cable using the polarization/depolarization current measurement (PDC). Accelerated thermal ageing tests were performed by placing the samples inside the temperature-controlled oven for 6 hours/round. After each round, the polarization and depolarization currents were measured. DIRANA Dielectric Response Analyzer by Omicron has been employed for the measurements. The results have shown an increase in the polarization and depolarization current.","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135311298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.12700/aph.20.11.2023.11.4
Ján Zbojovský, Marek Pavlík, Iraida Kolcunová, Juraj Kurimský, Roman Cimbala
{"title":"Investigation of Shielding Materials, for the Purpose of Shielding Electromagnetic Fields","authors":"Ján Zbojovský, Marek Pavlík, Iraida Kolcunová, Juraj Kurimský, Roman Cimbala","doi":"10.12700/aph.20.11.2023.11.4","DOIUrl":"https://doi.org/10.12700/aph.20.11.2023.11.4","url":null,"abstract":"","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135508990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.12700/aph.20.1.2023.20.15
Zhiyong Peng, X. Yang, Wei-ning Liu, M. M. Rad
{"title":"Research on Risk Control Parameters of a Shielded-Tunnel-enlarged Station, based on Bearing Capacity of Pre-removed Segment","authors":"Zhiyong Peng, X. Yang, Wei-ning Liu, M. M. Rad","doi":"10.12700/aph.20.1.2023.20.15","DOIUrl":"https://doi.org/10.12700/aph.20.1.2023.20.15","url":null,"abstract":"","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66132554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.12700/aph.20.1.2023.20.2
B. Bochenek
{"title":"An Easy Way for the Generation of Structural Topologies under Random Loads Using Cellular Automata","authors":"B. Bochenek","doi":"10.12700/aph.20.1.2023.20.2","DOIUrl":"https://doi.org/10.12700/aph.20.1.2023.20.2","url":null,"abstract":"","PeriodicalId":50884,"journal":{"name":"Acta Polytechnica Hungarica","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66132656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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