1 - Acta Technica Corviniensis

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ACTA TECHNICA CORVINIENSIS – Bulletin of Engineering19. Preetida VINAYAKRAY‐JANI, Sugata SANYAL – INDIAROUTING PROTOCOLS FOR MOBILE AND VEHICULAR AD HOC NETWORKS: ACOMPARATIVE ANALYSIS 101ABSTRACT: We present comparative analysis of MANET (Mobile Ad‐Hoc Network) and VANET (Vehicular Ad‐HocNetwork) routing protocols, in this paper. The analysis is based on various design factors. The traditionalrouting protocols of AODV (Ad hoc On‐Demand Distance Vector), DSR (Dynamic Source Routing), and DSDV(Destination‐Sequenced Distance‐Vector) of MANET are utilizing node centric routing which leads to frequentbreaking of routes, causing instability in routing. Usage of these protocols in high mobility environment likeVANET may eventually cause many packets to drop. Route repairs and failures notification overheads increasesignificantly leading to low throughput and long delays. Such phenomenon is not suitable for Vehicular Ad hocNetworks (VANET) due to high mobility of nodes where network can be dense or sparse. Researchers haveproposed various routing algorithms or mechanism for MANET and VANET. This paper describes the relevantprotocols, associated algorithm and the strength and weakness of these routing protocols.20. Vladimir KULIK, Ján PAŠKO – SLOVAKIATHE STRUCTURAL DESIGN AND STRENGTH CALCULATION WORM EXTRUSION MACHINESFOR PRODUCING PLASTIC PROFILES 107ABSTRACT: The most practical and the most widely used technology of plastic profile extrusion technology isworm extruder. The contribution deals with the design and stress analysis of a single worm extruder.Extrusion technology is one of the leading production technology for processing thermoplastics, as well aselastomers (rubber). The introduction is given substance and principle of extrusion technology. In other partsof the paper is processed with design and stress analysis of a single worm.21. Koros NEKOUFAR – IRANNEW MODELING OF THERMAL DIVISION IN TURBULENT TUBES 111ABSTRACT: Turbulent Ranque effect is a typical macro–quantum phenomenon, which cannot be described byclassical theory. About a century of unsuccessful experience in defining this phenomenon on the basis ofclassical methods testifies to this. The basic idea of non–local thermodynamics is to use quantum entropy,with every quantum defined as equal to Boltzman constant. This hypothesis will allow applyingthermodynamic energy. Further, correlations of quantum mechanics are used. In this article, the process ofgasses’ thermal division in turbulent tubes is described on the basis of thermodynamic theory according toNewtonian time.22. Igor LAZAREV – MACEDONIAKarl KUZMAN – SLOVENIAJovan MICKOVSKI, Jovan LAZAREV, Jasmina CALOSKA, Atanas KOCHOV – MACEDONIAMETAL MATRIX COMPOSITES AS TOOLS MATERIAL FOR THE DEEP DRAWING 115ABSTRACT: In order to improve the strength and high‐temperature properties of sintered iron, metal matrixiron‐ Alumina (Al 2 O 3 ) composite material has been studied. In the present investigation, iron powder added by0‐8 Wgt % Al 2 O 3 powder where selected for the study. Powders where mixed, compacted and subsequentlysintered at 1150 o C in laboratory tube furnace, under an endo gas atmosphere. Composite material propertieswere evaluated. The outcome results is that 4 vol % Al 2 O 3 is the optimal percentage of the Alumina to obtainsuperior properties of the metal matrix composite. The deep drawing die and punch have been designed byusing metal matrix composite and experimentally tested.23. Georgeta Emilia MOCUȚA, Mihaela POPESCU, Ioan Dănuț DAN – ROMANIATHE BEST WAY OF WORKING SPACE ROBOT WHICH EQUIPS A FLEXIBLE MANUFACTURINGCELL COMPONENT OF WELDED IN RAIL FIELD 119ABSTRACT: The industrial robot acts on its operating space under different shapes, namely by manipulatingparts, by executing processing technological operations, by measuring specific parameters of products oreven of the operating space etc. Many applications and functions performed by a robot reveal an essentialcharacteristic, namely their versatility. Studying the movement of a robot consists of a single well‐definedproblem but a collection of several problems that are more or less than one other option. Exemplification wasperformed using MSC NASTRAN program.24. Martin PETRUF, Ján KOLESÁR – SLOVAKIALOGISTIC AND ACQUISITION 123ABSTRACT: Acquisition of the most modern technical systems and their logistical support requires innovativeapproaches to be adopted in design, manufacturing and providing logistical services for their operation. Thearticle aims to be a contribution to the acquisitional approach termed as CALS, i.e. to a modern, computerbasedlogistics. Integrated logistical support provided through electronization of design and operationaldocumentation linked with standardization and continuous upgrade is yielding surprising benefits.Implementation of computer systems in logistics for modern trends in military and industrial branches is ofvital importance, particularly for the purpose of obtaining higher quality from the aspect of systemcharacteristics, both in view of the methods applied – concurrent engineering, limiting the variability ofmanufacturing and the like.25. Rajdeep BORGOHAIN – INDIADATA HIDING TECHNIQUES USING NUMBER DECOMPOSITIONS 127ABSTRACT: Data hiding is the art of embedding data into digital media in a way such that the existence of dataremains concealed from everyone except the intended recipient. In this paper, we discuss the various LeastSignificant Bit (LSB) data hiding techniques. We first look at the classical LSB data hiding technique and themethod to embed secret data into cover media by bit manipulation. We also take a look at the data hidingtechnique by bit plane decomposition based on Fibonacci numbers. This method generates more bit planeswhich allows users to embed more data into the cover image without causing significant distortion. We alsodiscuss the data hiding technique based on bit plane decomposition by prime numbers and natural numbers.These methods are based on mapping the sequence of image bit size to the decomposed bit number to hidethe intended information. Finally we present a comparative analysis of these data hiding techniques.182012. Fascicule 3 [July–September]
ACTA TECHNICA CORVINIENSIS – Bulletin of EngineeringSCIENTIFIC EVENTS IN 2012 133 20 th ANNUAL INTERNATIONAL CONFERENCE on COMPOSITES, NANO OR METALS ENGINEERING – ICCE‐2022 – 28 July 2012, Beijing, CHINA THE 6 th INTERNATIONAL CONFERENCE ON INDUSTRIAL ENGINEERING AND MANAGEMENT – IEM201210 – 12 August, 2012, Zhengzhou, CHINA THE 9 th INTERNATIONAL CONGRESS “MACHINES, TECHNOLOGIES, MATERIALS – INNOVATIONS FOR THEINDUSTRY” – MTM'1219 – 21 September, 2012, Varna, BULGARIA THE 4 th INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE AND TECHNOLOGIES – ROMAT 201217 – 19 October, 2012, Bucuresti, ROMANIA FEDERATED CONFERENCE ON COMPUTER SCIENCE AND INFORMATION SYSTEMS – FedCSIS 20129 – 12 September, 2012, Wrocław, POLAND THE 5 th INTERNATIONAL CONFERENCE ON MASS CUSTOMIZATION AND PERSONALIZATION IN CENTRALEUROPE (MCP – CE 2012) – CUSTOMER CO‐CREATION IN CENTRAL EUROPE19 – 21 September, 2012, Novi Sad, SERBIA THE 18 th EUNICE CONFERENCE ON INFORMATION AND COMMUNICATIONS TECHNOLOGIES29 – 31 August, 2012, Budapest, HUNGARY MACHINE‐BUILDING AND TECHNOSPHERE OF THE XXI CENTURY17 – 22 September, 2012, Sevastopol, UKRAINE INTERNATIONAL CONFERENCE on MATHEMATICAL MODELING IN PHYSICAL SCIENCES – IC‐MSQUARE20123 – 7 September, 2012, Budapest, HUNGARY 11 th INTERNATIONAL SCIENTIFIC CONFERENCE – MMA 2012 – ADVANCED PRODUCTION TECHNOLOGIES20 – 21 September, 2012, Novi Sad, SERBIA 4 th INTERNATIONAL SCIENTIFIC AND EXPERT CONFERENCE – TEAM 2012 (Technique, Education,Agriculture & Management)17 – 19 October, 2012, Slavonski Brod, CROATIA 1 st INTERNATIONAL SCIENTIFIC CONFERENCE – COMETa 2012 – CONFERENCE on MECHANICALENGINEERING TECHNOLOGIES AND APPLICATIONS28 – 30 November, 2012, Jahorina, BOSNIA&HERZEGOVINA 4 th INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE AND TECHNOLOGIES ‐ ROMAT 201217 – 19 October, 2012, Bucharest, ROMANIA 2 nd INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND BUILDING MATERIAL – CEBM 201217 – 18 November, 2012, Hong Kong 7 th INTERNATIONAL ICQME CONFERENCE (Quality, Management, Environment, Education, Engineering)19 – 21 September, 2012, Tivat, MONTENEGRO INTERNATIONAL CONFERENCE ON NEW ENERGY, BIOLOGICAL ENGINEERING AND FOOD SECURITY ‐NEBEFS 20124 – 5 September, 2012, Hong Kong INTERNATIONAL CONFERENCE ON MANUFACTURING – MANUFACTURING 201214 – 15 November, Macau, CHINA 2 nd INTERNATIONAL CONFERENCE ON INTEGRATED INFORMATION – IC‐ININFO 201230 August – 3 September, 2012, Budapest, HUNGARY INTERNATIONAL CONFERENCE ON MANUFACTURING ENGINEERING AND TECHNOLOGY FORMANUFACTURING GROWTH – METMG 20121 – 2 November,2012, San Degio, USA INTERNATIONAL CONFERENCE ON APPLIED PHYSICS AND MATERIALS SCIENCE – APMS 20125 – 6 October, 2012, Dalian, CHINAGENERAL GUIDELINES FOR PREPARING THE MANUSCRIPTS 137ACTA TECHNICA CORVINIENSIS – BULLETIN of ENGINEERINGISSN: 2067‐3809 [CD‐Rom, online]copyright © UNIVERSITY POLITEHNICA TIMISOARA,FACULTY OF ENGINEERING HUNEDOARA,5, REVOLUTIEI, 331128, HUNEDOARA, ROMANIAhttp://acta.fih.upt.ro2012. Fascicule 3 [July–September] 19
Page 2 and 3: ACTA TECHNICA CORVINIENSIS- BULLETI
Page 4 and 5: ACTA TECHNICA CORVINIENSIS - Bullet
Page 8 and 9: Regional Editors from MALAYSIAAbdel
Page 10 and 11: Imre TIMÁRUniversity of Pannonia,
Page 12 and 13: Ioan MILOŞANTransilvania Universit
Page 14 and 15: Member from GREECENicolaos VAXEVANI
Page 22 and 23: two decades are seismically deficie
Page 28 and 29: The Euler ecuation about the condit
Page 32 and 33: examination centre of the Hungarian
Page 36 and 37: elieve that they are communicating
Page 38 and 39: converting the data also increases
Page 40 and 41: REFERENCES[1.] Bhavyesh Divecha, Aj
Page 42 and 43: In addition, API (Application Progr
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Page 46 and 47: compressor, the now hot and highly
Page 48 and 49: Figure 7. Pressure ratio of evapora
Page 50 and 51: Physical data model (MFD) is obtain
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Page 54 and 55: Figure 3. Materials evolutionThe pr
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Page 62 and 63: A machine vision‐guided plant sen
Page 64 and 65: During the experiment, non‐unifor
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generation and thermal‐diffusion
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70(Pr−1)=bGm( R −cPr)( − M+c
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72Figure 12: Sherwood Number for di
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ACTA TECHNICA CORVINIENSIS - Bullet
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The hardware components offer the p
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Markers 1 (t=‐60 ms) and 2 (t=‐
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compensation, apply dynamic control
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A. Impact on transmission line prot
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[12.] W.H. Zhang, S.J. Lee, M.S. Ch
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Substituting equations (2), (3), (4
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the tribological experiment to simu
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It is difficult to determine temper
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where: “ν ” represents the con
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Figure 10. The velocity field in a
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made on demand. In this type of pro
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traditional MANET routing protocol
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and classification,” In Journal o
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equipped with tube made from stainl
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Fig. 10 ‐ The die, the blank hold
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desktop, it must be based on runtim
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database, which makes it possible t
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technology - „Applied logistics
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increase in one of the factors lead
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