JAES No. 2-2014-Vol. 12 by JAES

IMPRESSUM J O U R N A L O F A P P L I E D E N G I N E E R I N G S C I E N C E (J A E S) The journal publishes original and review articles covering the concept of technical science, energy and environment, industrial engineering, quality management and other related sciences. JAES is Open-Access Journal that follows new trends and progress proven practice in listed fields, thus creating a unique forum for interdisciplinary or multidisciplinary dialogue. JAES is part of the electronic journal editing with a transparent editorial and review policy. Provided are: • Online paper submission and tracking of review process with communication between editors, authors and reviewers • CrossRef: assignment of numerical identifiers (DOI) to assure greater visibility and accessibility of journal articles • CrossCheck: control for originality of submitted papers, to prevent plagiarism and duplicate publications • KWASS: automatic extraction of keywords from disciplinary thesaurus • Online-first publishing • Automatic transfer of metadata to SCIndeks that support international protocols for data transfer All published articles are indexed by international abstract base Elsevier Bibliographic Databases through service SCOPUS since 2006 and through service SCImago Journal Rank since 2011. Serbian Ministry of Science admitted the Journal of Applied Engineering Science in a list of reference journals as Leading national journal M51. Same Ministry financially supports journal’s publication. Publisher Institute for Research and Design in Commerce and Industry - IIPP; www.iipp.rs For publisher: Prof. dr Branko Vasić Copublisher Faculty of Mechanical Engineering – Belgrade University; www.mas.bg.ac.rs For copublisher: Prof. dr Milorad Milovančević Faculty of Transport and Traffic Engineering – Belgrade University; www.sf.bg.ac.rs For copublisher: Prof. dr Branimir Stanić Editor in Chief Prof. dr Jovan Todorović Faculty of Mechanical Engineering, Belgrade; Assistant Editor Dr Predrag Uskoković, IIPP Editorial Board Prof. dr Gradimir Danon, Faculty of Forestry, Belgrade; Doc. dr Dušan Milutinović, Institute for Transport and Traffic CIP, Belgrade; Mr Đorđe Milosavljević, CPI - Process Engineering Center, Belgrade; Prof. dr Miodrag Zec, Faculty of Philosophy, Belgrade; Prof. dr Nenad Đajić, Mining and Geology Faculty, Belgrade; Prof. dr Vlastimir Dedović, Faculty of Transport and Traffic Engeneering, Belgrade; Prof. dr Mirko Vujošević, Faculty of organizational sciences, Belgrade; Prof. dr Vladimir Popović, Faculty of Mechanical Engineering, Belgrade; Prof. dr Vesna Spasojević Brkić, Faculty of Mechanical Engineering, Belgrade; Prof. dr Dragan Aleksendrić, Faculty of Mechanical Engineering, Belgrade.

International Editorial Board Prof. dr Vukan Vučić, University of Pennsylvania, USA; Prof. dr Robert Bjeković, Hochschule Ravensburg-Weingarten, Germany; Prof. dr Jozef Aronov, Research Institute for Certification JSC, Russia; Prof. dr Jezdimir Knežević, MIRCE Akademy, England; Dr Nebojša Kovačević, Geotechnical consulting group, England; Adam Zielinski, Solaris Bus & Coach, Poland; Prof. dr Miloš Knežević, Faculty for Civil Engineering, Montenegro; MSc Siniša Vidović, Energy Testing & Balance Inc, USA; Dr Zdravko Milovanović, Faculty of Mechanical Engineering, Banja Luka. Publishing Council Prof. dr Milorad Milovančević, Faculty of Mechanical Engineering, Belgrade; Milutin Ignjatović, Institute for Transport and Traffic CIP, Belgrade; Dragan Belić, Transport Company “Lasta”, Belgrade; Dr Deda Đelović, Port of Bar, Bar; Dr Drago Šerović, Adriatic Shipyard, Bijela; Cvijo Babić, Belgrade Waterworks and Sewerage, Belgrade; Nenad Jankov, Power Plant Kostolac B, Kostolac; Miroslav Vuković, Mercator Business System, Belgrade; Dušan Đurašević, Euro Sumar, Belgrade. Editorial Office Nada Stanojević, Miloš Vasić, Darko Stanojević, Miloš Dimitrijević, Ivana Spasojević, IIPP, Belgrade; Printed by: Sigrastar, Belgrade Designed and prepress: IIPP

ISSN 1451-4117 UDC 33 Papers are indexed by SCOPUS Journal of Applied Engineering Science 11(2013)4

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