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ACTA TECHNICA CORVINIENSIS Fascicule 3 ISSN: 2067-3809 ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering Tome XIII [2020] Fascicule 3 [July–September] Edited by: UNIVERSITY POLITEHNICA TIMISOARA with kindly supported by: THE GENERAL ASSOCIATION OF ROMANIAN ENGINEERS (AGIR) – branch of HUNEDOARA Editor / Technical preparation / Cover design: Assoc. Prof. Eng. KISS Imre, PhD. UNIVERSITY POLITEHNICA TIMISOARA, FACULTY OF ENGINEERING HUNEDOARA Commenced publication year: 2008 ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering [e–ISSN: 2067–3809] TOME XIII [2020] | FASCICULE 3 [July – September] ASSOCIATE EDITORS and REGIONAL COLLABORATORS MANAGER & CHAIRMAN ROMANIA Imre KISS, University Politehnica TIMISOARA, Faculty of Engineering HUNEDOARA, Department of Engineering & Management, General Association of Romanian Engineers (AGIR) – branch HUNEDOARA EDITORS from: ROMANIA Dragoș UȚU, University Politehnica TIMI OARA – TIMI OARA Vasile ALEXA, University Politehnica TIMI OARA – HUNEDOARA Sorin Aurel RAŢIU, University PolitehnicaŞ TIMI OARA –Ş HUNEDOARA Vasile George CIOATĂ, University PolitehnicaŞ TIMI OARA – HUNEDOARA Simona DZIŢAC, University of Oradea – ORADEAŞ Valentin VLĂDUŢ, Institute of Research-DevelopmentŞ for Machines & Installations – BUCURE TI Dan Ludovic LEMLE, University Politehnica TIMI OARA – HUNEDOARA Emanoil LINUL, University Politehnica TIMI OARA – TIMI OARA Ş Virgil STOICA, University Politehnica TIMI OARAŞ – TIMI OARA Sorin Ștefan BIRIȘ, University Politehnica BUCURESTIŞ – BUCURESTIŞ Mihai G. MATACHE, Institute of Research-DevelopmentŞ forŞ Machines & Installations – BUCURE TI REGIONAL EDITORS from: SLOVAKIA Juraj ŠPALEK, University of ILINA – ILINA Ş Peter KOŠTÁL, Slovak University of Technology in BRATISLAVA – TRNAVA Tibor KRENICKÝ, Technical ŽUniversityŽ of KOŠICE – PREŠOV Beata HRICOVÁ, Technical University of KOŠICE – KOŠICE Peter KRIŽAN, Slovak University of Technology in BRATISLAVA – BRATISLAVA HUNGARY Tamás HARTVÁNYI, Széchenyi István University – GY R Arpád FERENCZ, Pallasz Athéné University – KECSKEMÉT József SÁROSI, University of SZEGED – SZEGED Ő Attila BARCZI, Szent István University – GÖDÖLLÓ György KOVÁCS, University of MISKOLC – MISKOLC Zsolt Csaba JOHANYÁK, John von Neumann University– KECSKEMÉT Gergely DEZSŐ, College of NYÍREGYHÁZA – NYÍREGYHÁZA Krisztián LAMÁR, Óbuda University BUDAPEST – BUDAPEST Loránt KOVÁCS, Pallasz Athéné University – KECSKEMÉT Valeria NAGY, University of SZEGED – SZEGED Sándor BESZÉDES, University of SZEGED – SZEGED Csaba Imre HENCZ, Széchenyi István University – GY R Zoltán András NAGY, Széchenyi István University – GY R László GOGOLÁK, University of SZEGED – SZEGED Ő Ő SERBIA Zoran ANIŠIC, University of NOVI SAD – NOVI SAD Milan RACKOV, University of NOVI SAD – NOVI SAD Igor FÜRSTNER, SUBOTICA Tech – SUBOTICA Eleonora DESNICA, University of NOVI SAD – ZRENJANIN Blaža STOJANOVIĆ, University of KRAGUJEVAC – KRAGUJEVAC Aleksander MILTENOVIC, University of NIŠ – NIŠ Milan BANIC, University of NIŠ – NIŠ Slobodan STEFANOVIĆ, Graduate School of Applied Professional Studies – VRANJE Sinisa BIKIĆ, University of NOVI SAD – NOVI SAD Masa BUKUROV, University of NOVI SAD – NOVI SAD Ana LANGOVIC MILICEVIC, University of KRAGUJEVAC – VRNJA KA BANJA Imre NEMEDI, SUBOTICA Tech – SUBOTICA Živko PAVLOVIĆ, University of NOVI SAD – NOVI SAD Č CROATIA Gordana BARIC, University of ZAGREB – ZAGREB Goran DUKIC, University of ZAGREB – ZAGREB BULGARIA Krasimir Ivanov TUJAROV, “Angel Kanchev” University of ROUSSE – ROUSSE Ognyan ALIPIEV, “Angel Kanchev” University of ROUSSE – ROUSSE Ivanka ZHELEVA, “Angel Kanchev” University of ROUSSE – ROUSSE Atanas ATANASOV, “Angel Kanchev” University of ROUSSE – ROUSSE 3 | University POLITEHNICA Timisoara / Faculty of Engineering Hunedoara http://acta.fih.upt.ro/ ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering [e–ISSN: 2067–3809] TOME XIII [2020] | FASCICULE 3 [July – September] BOSNIA & Tihomir LATINOVIC, University in BANJA LUKA – BANJA LUKA HERZEGOVINA Sabahudin JASAREVIC, University of ZENICA – ZENICA Šefket GOLETIĆ, University of ZENICA – ZENICA POLAND Jarosław ZUBRZYCKI, LUBLIN University of Technology – LUBLIN Maciej BIELECKI, Technical University of LODZ – LODZ Bożena GAJDZIK, The Silesian University of Technology – KATOWICE TURKEY Önder KABAŞ, Akdeniz University – KONYAAALTI/Antalya CHINA Yiwen JIANG, Military Economic Academy – WUHAN SPAIN César GARCÍA HERNÁNDEZ, University of ZARAGOZA – ZARAGOZA GREECE Apostolos TSAGARIS, Alexander Technological Educational Institute of THESSALONIKI – THESSALONIKI Panagiotis KYRATSIS, Western Macedonia University of Applied Sciences – KOZANI The Editor and editorial board members do not receive any remuneration. These positions are voluntary. The members of the Editorial Board may serve as scientific reviewers. We are very pleased to inform that our journal ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering is going to complete its ten years of publication successfully. In a very short period it has acquired global presence and scholars from all over the world have taken it with great enthusiasm. We are extremely grateful and heartily acknowledge the kind of support and encouragement from you. ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering seeking qualified researchers as members of the editorial team. Like our other journals, ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering will serve as a great resource for researchers and students across the ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering ISSN: 2067-3809 globe. We ask you to support this initiative by joining our copyright © University POLITEHNICA Timisoara, editorial team. If you are interested in serving as a member Faculty of Engineering Hunedoara, of the editorial team, kindly send us your resume to 5, Revolutiei, 331128, Hunedoara, ROMANIA [email protected]. http://acta.fih.upt.ro 4 | University POLITEHNICA Timisoara / Faculty of Engineering Hunedoara http://acta.fih.upt.ro/ ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering [e–ISSN: 2067–3809] TOME XIII [2020] | FASCICULE 3 [July – September] INTERNATIONAL SCIENTIFIC COMMITTEE MEMBERS and SCIENTIFIC REVIEWERS MANAGER & CHAIRMAN ROMANIA Imre KISS, University Politehnica TIMISOARA, Faculty of Engineering HUNEDOARA, Department of Engineering & Management, General Association of Romanian Engineers (AGIR) – branch HUNEDOARA INTERNATIONAL SCIENTIFIC COMMITTEE MEMBERS & SCIENTIFIC REVIEWERS from: ROMANIA Viorel–Aurel ȘERBAN, University Politehnica TIMI OARA – TIMI OARA Teodor HEPUŢ, University Politehnica TIMI OARA – HUNEDOARA Mircea BEJAN, Tehnical University of CLUJ-NAPOCAŞ – CLUJ-NAPOCAŞ Liviu MIHON, University Politehnica TIMI OARAŞ – TIMI OARA Ilare BORDEAȘU, University Politehnica TIMI OARA – TIMI OARA Liviu MARȘAVIA, University Politehnica TIMIŞ OARA – TIMIŞ OARA Ioan VIDA-SIMITI, Technical University of CLUJŞ -NAPOCA – ŞCLUJ-NAPOCA Csaba GYENGE, Technical University of CLUJ-ŞNAPOCA – CLUJŞ -NAPOCA Sava IANICI, “Eftimie Murgu” University of RE I A – RE I A Ioan SZÁVA, “Transilvania” University of BRASOV – BRASOV Sorin VLASE, “Transilvania” University of BRASOVŞ Ţ – BRASOVŞ Ţ Horatiu TEODORESCU DRĂGHICESCU, “Transilvania” University of BRASOV – BRASOV Maria Luminița SCUTARU,“Transilvania” University of BRASOV – BRASOV Iulian RIPOŞAN, University Politehnica BUCURE TI – BUCURE TI Ioan DZITAC, Agora University of ORADEA – ORADEA Carmen ALIC, University Politehnica TIMI OARAŞ – HUNEDOARAŞ SLOVAKIA Štefan NIZNIK, Technical University of KOŞŠICE – KOŠICE Karol VELIŠEK, Slovak University of Technology BRATISLAVA – TRNAVA Juraj ŠPALEK, University of ILINA – ILINA Ervin LUMNITZER, Technical University of KOŠICE – KOŠICE Miroslav BADIDA, TechnicalŽ UniversityŽ of KOŠICE – KOŠICE Milan DADO, University of ILINA – ILINA Ľubomir ŠOOŠ, Slovak University of Technology in BRATISLAVA – BRATISLAVA Miroslav VEREŠ, Slovak UniversityŽ of ŽTechnology in BRATISLAVA – BRATISLAVA Milan SAGA, University of ILINA – ILINA Imrich KISS, Institute of Economic & Environmental Security – KOŠICE Vladimir MODRAK, TechnicalŽ UniversityŽ of KOSICE – PRESOV Michal HAVRILA, Technical University of KOSICE – PRESOV CROATIA Drazan KOZAK, Josip Juraj Strossmayer University of OSIJEK – SLAVONKI BROD Predrag COSIC, University of ZAGREB – ZAGREB Milan KLJAJIN, Josip Juraj Strossmayer University of OSIJEK – SLAVONKI BROD Miroslav CAR, University of ZAGREB – ZAGREB Antun STOIĆ, Josip Juraj Strossmayer University of OSIJEK – SLAVONKI BROD Ivo ALFIREVIĆ, University of ZAGREB – ZAGREB HUNGARY Imre DEKÁNY, University of SZEGED – SZEGED Béla ILLÉS, University of MISKOLC – MISKOLC Imre RUDAS, Óbuda University of BUDAPEST – BUDAPEST Tamás KISS, University of SZEGED – SZEGED Cecilia HODÚR, University of SZEGED – SZEGED Arpád FERENCZ, Pallasz Athéné University – KECSKEMÉT Imre TIMÁR, University of Pannonia – VESZPRÉM Kristóf KOVÁCS, University of Pannonia – VESZPRÉM Károly JÁRMAI, University of MISKOLC – MISKOLC Gyula MESTER, University of SZEGED – SZEGED Ádám DÖBRÖCZÖNI, University of MISKOLC – MISKOLC György SZEIDL, University of MISKOLC – MISKOLC Miklós TISZA, University of MISKOLC – MISKOLC Attila BARCZI, Szent István University – GÖDÖLLÓ István BIRÓ, University of SZEGED – SZEGED József GÁL, University of SZEGED – SZEGED Ferenc FARKAS, University of SZEGED – SZEGED Géza HUSI, University of DEBRECEN – DEBRECEN Ferenc SZIGETI, College of NYÍREGYHÁZA – NYÍREGYHÁZA 5 | University POLITEHNICA Timisoara / Faculty of Engineering Hunedoara http://acta.fih.upt.ro/ ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering [e–ISSN: 2067–3809] TOME XIII [2020] | FASCICULE 3 [July
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