Facultatea de Inginerie Manageriala si Tehnologica MENIU COVERT INSTRUCTIONS FOR AUTHORS EDITORS PEER-REVIEW AIMS AND SCOPE ARTICLES 2005-2011 Indexed by :

ANNALS OF THE ORADEA UNIVERSITY. Fascicle of Management and Technological Engineering ISSN 1583 - 0691, CNCSIS "Clasa B+" 3 issues per year   MECHANICS : Mechanics, Strength of Materials, Mechanical Vibrations, Numerical Methods, Applied Mathematics, Machines and Equipments, Automotive MATERIALS OBTAINED THROUGH SINTERISATION OF NANOMETRIC POWDERS USED AT COMPONENTS AND SUB-ASSEMBLIES FOR INTERNAL COMBUSTION ENGINES Adela Filip,Dan Virgiliu Negrea Drd. National College ”Vasile Lucaciu” Baia Mare, prof. univ. dr. ing. Polytechnic University Timisoara, Faculty of Mechanics, Department of Thermic Machines adela_fillip@yahoo.com, negrhometm@yahoo.com THE STATISTICAL ANALYSIS OF THE VIBRATIONS PRODUCTS OF THE ROTARY KNITTING MACHINES Adriana BALTA1, Horia BALTA2 „POLITEHNICA” UNIVERSITY OF TIMIŞOARA, 1Mechanical Engineering Faculty, Bd. Mihai Viteazul, Nr.1, 300222, balta_adriana@yahoo.com, 2Electronics and Telecommunications Faculty, Bd. Vasile Pârvan, Nr.2, 300223 horia.balta@etc.utt.ro ALGORITHM AND PROCEDURES TO SOLUTION NONLINEAR DIFFERENTIAL EQUATIONS SYSTEM Alexandru-Viorel PELE Oradea University, FIMT apele@uoradea.ro THE INTERFEROMETRIC METHOD FOR THE FLUID’S REFRACTIVE INDEX DETERMINATION IN REAL TIME Alina CARABAN, Gabriela BADEA, Georgeta GAVRIS University of Oradea acaraban@uoradea.ro VIBRATION ISOLATION FOR AN ECCENTRIC PRESS Amalia TÎRDEA Departament of Mechanics and Vibration University POLITEHICA of Timisoara amalias@mec.utt.ro THE INFLUENCE OF THE FREEZING STAGE ON TRANSPORT PROPERTIES AND DRYING PROCESS Ana BACAOANU, Gabriela-Victoria ANGHEL, Dumitru MNERIE Department of Chemical Engineering, “Gh.Asachi” Technical University of Iasi, Bd. Mangeron no.71, 700050 Iasi, Romania, Politehnica University of Timisoara, Mechanical engineering Faculty abacaoan@ch.tuiasi.ro, dumitru_mnerie@yahoo.com PASSENGER BUILDING – FOCSANI CASE STUDY Anca I. Rus; Aurel Ardelea; Cristian S. Bãlan; Helmut H. Köber; Carmen I. Bucur Drd. Structural Eng; – Dr., Structural Eng Technical Consultant – Resistance – Architecture Division Railway Study and Design Institute – Bucharest; – Eng. - Technical Director – Building Design, Research and Software Institute – Bucharest;, - Dr. Eng. - Technical Consultant – Design Institute for Rolling Mill Bucharest;- Prof. PhD. Structural Eng. - Department of Mechanics of Structures – Technical University of Civil Engineering – Bucharest THE SIMULATION OF WHEELS TRACTORS STEERING MECHANISMS Cãtãlin BENEA Universitatea Transilvania din Braşov, Facultatea de Inginerie Tehnologicã route_66c@yahoo.com INDUCED BREAKAGE OF WHEELBASED TRACTORS Cãtãlin BENEA Department of IT, The Transilvania University of Brasov,Brasov, Romania route_66c@yahoo.com ALGORITHM OF DEDUCING KNIFE TRANSLATION MOTION COURSE FOR MANUAL TEXTIL CUTTING MACHINE Claudia VIRAGOS-TOTH “TRANSILVANIA” University, Department of Product Design and Robotics, 29 Eroilor, Avenue, 500036, ROMANIA Claudia_Viragos@unitbv.ro ASPECTE PRIVIND MICROSTRUCTURA ÎN DETERMINAREA DURATEI DE VIATA LA OBOSEALA A MATERIALELOR Claudiu Ovidiu, POPA Universitatea Tehnica din Cluj–Napoca Some criteria about determination of metallic elements fatigue life Claudiu Ovidiu, POPA Technical University of Cluj-Napoca APPAREIL DE MESURE DE BRUITS ET VIBRATIONS DE LA MACHINE – OUTILS Constantin CIOBAN, Ioan V. MIHĂILĂ Universitatea din Oradea AN OPTIMIZATION SYNTHESIS OF THE PLANAR CAMS FOR DISTRIBUTION AND INJECTION MECHANISMS ON THE HIGH POWER DIESEL ENGINE Cornelia Victoria ANGHEL Assoc.PhD.Eng. – „Eftimie Murgu” University of Resita – Computers Science Departament canghel@uem.ro THE IMPACT ENERGY SPECTRA IN TUMBLING MILL’S CASE Cristian PAVEL, Amelitta LEGENDI Department of Technical Mechanics and Mechanisms Faculty of Technological Equipment Technical University of Civil Engineering, Calea Plevnei 59, 010223, Sector 1, Bucharest ROMANIA Tel. 315.82.00 cr.pavel@pcnet.ro, legendi@xnet.ro APPROXIMATE METHODS IN ORDER TO DETERMINATE THE DISPLACEMENT FIELDS FOR THE KINEMATICAL ELEMENTS STANDING IN VIBRATION Dan Gheorghe BAGNARU, Adina CATANEANU University of Craiova bagnaru@pcnet.ro STRESS DEFINITION ON FATIGUE ASSESSMENT OF WELDED ALUMINIUM JOINTS Daniela FILIP VĀCĀRESCU North University of Baia Mare, Applied Mechanic Departament filda@ubm.ro COMMENTS ON USING FINITE ELEMENT ANALYSIS FOR HOT SPOT STRESS CALCULATION Daniela FILIP VĀCĀRESCU,Florin FILIP VĀCĀRESCU Universitatea de Nord din Baia Mare,Catedra de Discipline Mecanice filda@ubm.ro CLUSTERING TECHNIQUE DEDICATED TO OPTIMAL DESIGN SOFTWARE WITH GENETIC ALGORITHMS Daniela JUCAN, Lucian TUDOSE Technical University of Cluj-Napoca CONSIDERATII TEORETICE PRIVIND ECHIPAMENTUL MECANIC DE ORIENTARE A PANOULUI SOLAR, IN SCOPUL CAPTARII RADIATIEI SOLARE MAXIME Diana SILAGHI, Doina CÂRLAN Universitatea „Aurel Vlaicu“ Arad, Facultatea de Inginerie silaghi@rdslink.ro, dcarlan@gmail.com EXPERIMENTAL REZULTS ABOUT THE INFLUENCE OF HYDROGEN ADDITION ON THE COMBUSTION PHASES OF AN SPARK-IGNITION ENGINE Dinu FODOR, Nicolae CRECAN University of Oradea CONTRIBUTIONS TO ESTABLISH THE OPTIMAL JUMP REGIME IN THE CASE OF SCREENING CRITICAL HUMIDITY MATERIAL Dinu Ioan STOICOVICI, Mircea HORGOS, Ioana CRACIUN North University of Baia Mare, Dr. V. Babes str. 62, Baia Mare, 4800 Romania dinu_stoicovici@yahoo.com ON THE DYNAMIC SIMULATION OF A MECHATRONIC VARIATOR Dorin DIACONESCU*, Radu SAULESCU*, Robert GALL* * Transilvania University of Braşov, Department Product Design and Robotics dvdiaconescu@unitbv.ro DIAGRAMA CICLICĂ DE FUNCŢIONARE A MAŞINII DE ŢESUT Dorina OANA, Ioan OANA Universitatea din Oradea LARGE-SCALE DYNAMICAL SYSTEMS AND PSEUDOSPECTRA Dumitru NICOARA Transilvania University of Brasov tnicoara@unitbv.ro THE RELIABILITY ANALYSIS OF THE TEETH OF EVOLVENT GEARINGS WITHIN MECHANICAL GEAR BOXES EUGENIA SECARA TRANSILVANIA UNIVERSITY OF BRASOV secarae@unitbv.ro METHODS USED FOR RELIABILITY ALLOCATION WITHIN COMPLEX SYSTEMS EUGENIA SECARA TRANSILVANIA UNIVERSITY OF BRASOV secarae@unitbv.ro PROGRAM FOR ASSESSING MECHANICAL VIBRATIONS OF MACHINES Felicia DRAGU Departament of Mechanics and Vibration University POLITEHNICA of Timisoara feliciadragu@yahoo.com ALGORITHM AND CALCULUS PROGRAM FOR TO DETERMINE THE MAXIMUM CROSS SECTION OF THE ASYMMETRIC INVOLUTE TEETH Flavia CHIRA, Mihai BANICA North University of Baia Mare, ROMÂNIA chira_flavia@yahoo.com EFORTS AND STRESS AT THE BOTTOM OF THE TOOTH OF THE GEARS WITH ASYMMETRIC INVOLUTE TEETH Flavia CHIRA, Vasile Tisan North University of Baia Mare, ROMÂNIA chira_flavia@yahoo.com ESTABLISHING THE CRITICAL FREQUENCY OF INTERNAL COMBUSTION ENGINES VALVES Florin CONSTANTIN Transilvania University of Brasov flconstantin@unitbv.ro ENERGETIC ASPECTS REGARDING THE SUSPENSION OF WHEELED TRACTORS Florin CONSTANTIN Transilvania University of Brasov flconstantin@unitbv.ro EFFECTS OF WELD IMPERFECTIONS ON FATIGUE STRENGTH OF ALUMINIUM STRUCTURES Florin FILIP VACARESCU North University of Baia Mare Bl.V.Babes 62A,Romania fildanor@zappmobile.ro CODES AND STANDARDS FOR THE FATIGUE ASSESSMENT OF WELDED ALUMINIUM ALLOY STRUCTURES Florin Filip Vacarescu North University of Baia Mare Bl.V.Babes 62A,Romania fildanor@zappmobile.ro IMPROVED NUMERICAL SOLUTIONS FOR THE SIMULATION OF MICROWAVE CIRCUITS Francisc Ioan HATHAZI, Mircea-Petru URSU, Dana BOCOCI University of Oradea hathazi@rdslink.ro, mpursu@uoradea.ro, dbococi@uoradea.ro EIGEN MODE FOR MICROWAVE TRANSMISSION Francisc Ioan HATHAZI, Traian BUIDOS, Dana BOCOCI, Mircea-Petru URSU University of Oradea hathazi@rdslink.ro, tbuidos@uoradea.ro, dbococi@uoradea.ro, mpursu@uoradea.ro METRIC PROPERTIES OF AN EXPANDED METAL PLANE STRUCTURE Gabriela CRISTESCU*, Laurentiu JITARU** * “Aurel Vlaicu” University of Arad, Faculty of Exact Sciences, Bd. Revolutiei, Nr. 77, 310130 – Arad, România, ** “Aurel Vlaicu” University of Arad, Faculty of Engineering, Bd. Revolutiei, Nr. 77, 310130 – Arad, România gcristescu@inext.ro, laurentiu_j@yahoo.com CASE STUDY RELADED TO THERMOGASDINAMICS FOR A DIESEL ENGINE WITH NORMAL ADMISSION IN CORRELATION WITH DATA PROCESSING BY FUZZY FUNCTIONS - PART II George Dragomir*, Virgiliu Dan Negrea**, Liviu Georgescu***, Florian Blaga* * ) Univesitatea din Oradea, ** ) Univesitatea Politehnica Timisoara, ***) Universitatea Politehnica Bucuresti georgedragomir@yahoo.com, fblaga@uoradea.ro, negrhometm@yahoo.com, liviugeorgescuro@yahoo.com THE PRE-LOAD TORQUE VARIABILITY OF THE DYNAMOMETRIC WRENCHES WITH A CUT-OUT (TACTILE AND AUDIBLE CUT-OUT) FOR LOW TORQUE Georgeta Gabriela Chindlea University of Oradea chindlea@uoradea.ro DETERMINING THE MATHEMATICAL VALUE AND THE DIRECTION OF THE PEA’S SPEED AFTER THE IMPACT Gheorghe ABRUDAN, Ion BRATU Universitatea din Oradea THE NUMERICAL FORMING OPERATION AND THE SIMULA-TION OF THE WORKING OF THE PEAS SORTING MACHINE Gheorghe ABRUDAN, Mircea VERES Universitate din Oradea DETERMINING THE FORCES THAT INFLUENCE THE BEARINGS OF THE LEADED DRUM Gheorghe ABRUDAN, Voichita HULE, Ion BRATU Universitatea din Oradea ON SOME SPECIAL TRANSVERSAL DIFFERENTIAL GEARS FOR OFF ROAD VEHICLES Gheorghe BECHERU, Adrian CHIRIAC, Tiberiu BABEU Directia Audit Intern a M.A.I., membru AGIR, membru ARTENS; Universitatea “Politehnica” din Timisoara, membru AGIR; Universitatea “Politehnica” din Timisoara, vicepresedinte AGIR, presedinte filiala AGIR Timis ON THE POWER CIRCULATION IN LONGITUDINAL PLAN AT A FOUR WHEEL DRIVE VEHICLE Gheorghe BECHERU, Tiberiu BABEU, Adrian CHIRIAC Directia Audit Intern a M.A.I., membru AGIR, membru ARTENS; Universitatea “Politehnica” din Timisoara, vicepresedinte AGIR, presedinte filiala AGIR, Timis; Universitatea “Politehnica” din Timisoara CONTRIBUTIONS CONCERNANT LA CINÉMATIQUE DU PISTON D’UN MOTEUR MONOCYLINDRIQUE EN TENANT COMPTE DES VIBRATIONS DE TORSION FORCÉE DE L’ARBRE COUDÉ Gheorghe PANAIT Université « Petrole-Gaz » Ploiesti LE COMPORTEMENT DYNAMIQUE D’UN ARBRE DROIT AYANT LA SECTION CIRCULAIRE SUR LAQUELLE ON MONTE LA MOITIÉ D’UN DISQUE D’EXCENTRICITÉ VARIABLE Gheorghe PANAIT Université « Petrole-Gaz » Ploiesti THE DETERMINATIONS OF THE NON-LINEARITY OF THE SYSTEMS USING DYNAMIC INDIRECT MEASUREMENTS Ghiorghe CAUTES, Gheorghe OPROESCU, Catalin Stefan CAUTES Dunarea de Jos University of Galati cautes.gheorghe@ugal.ro ABOUT THE OSCILLATIONS OF THE MECHANICAL OSCILLATIONS WITH NON-LINEAR ELASTICITY Ghiorghe CAUTES, Gheorghe OPROESCU, Catalin Stefan CAUTES Dunarea de Jos University of Galati cautes.gheorghe@ugal.ro SUR LE CALCUL DYNAMIQUE DU MÉCANISME D’ACTIONNEMENT DES INTERRUPTEURS D’HAUTE TENSION, À RESSORT DE DÉCLENCHEMENT Ioan LUPU, Adrian CHIRIAC Grupul Scolar Industial «Stefan Anghel » din Resita, Universitatea “Politehnica” din Timisoara lupuioanviorel@yahoo.com, chiriac@mec.utt.ro SUR LA DYNAMIQUE DU MÉCANISME DE COMMANDE À CONTACTS ET PISTON, DES INTERRUPTEURS D’HAUTE TENSION Ioan LUPU, Adrian CHIRIAC Grupul Scolar Industial «Stefan Anghel » din Resita, Universitatea “Politehnica” din Timisoara lupuioanviorel@yahoo.com, chiriac@mec.utt.ro QUELQUES METHODES UTILISES DANS L’ANALOGIE THERMOELECTRIQUE POUR L’ECHANGE DE LA CHALEUR Ioan MIHAI “Ştefan cel Mare” University, str. Universităţii nr. 13, 720 225 Suceava mihai.i@fim.usv.ro APPLICATIONS DE L’ANALOGIE THERMOELECTRIQUE DANS L’ECHANGE DE LA CHALEUR Ioan MIHAI “Ştefan cel Mare” University, str. Universităţii nr. 13, 720 225 Suceava mihai.i@fim.usv.ro THE FATIGUE BEHAVIOUR OF SUCKING RODS MATERIALS IN CORROSIVE ENVIRONMENT Ioan POPA, Lavinia Silvia STANCIU Oil-Gas University of Ploiesti ipopa@upg-ploiesti.ro THE MODELING OF THE ELASTIC AND SAFETY CLUTCH PART II: DYNAMIC MODELING Ioan STROE1, Elena EFTIMIE1 Lucian COTLEANU1, Mihai FAZECAŞ2 1) Universitatea "Transilvania" din Braşov, 2) Universitatea din Oradea stroei@unitbv.ro, lucicotleanu@yahoo.com, mihaifazecas@yahoo.com THE MODELING OF THE ELASTIC AND SAFETY CLUTCH PART I: KINEMATICAL MODELING Ioan STROE1, Elena EFTIMIE1 Lucian COTLEANU1, Mihai FAZECŞ2 1) Universitatea "Transilvania" din Braşov, 2) Universitatea din Oradea stroei@unitbv.ro, lucicotleanu@yahoo.com, mihaifazecas@yahoo.com TEMPERATURE ACQUISITION SYSTEM FOR A THRUST BEARING STAND Ioan ŢARCĂ, Naiana Ţarcă, Radu ŢARCĂ Universitatea din Oradea nelut@uoradea.ro, ntarca@uoradea.ro, rtarca@uoradea.ro DOG- LEGS INFLUENCE ON THE DIE- MARKED DRILL PIPE LIFETIME Lavinia Silvia STANCIU, Ioan POPA Oil-Gas University of Ploiesti, General Mechanics Department alexstanciu@ploiesti.astral.ro, ipopa@upg-ploiesti.ro A NEW RECOMBINATION OPERATOR FOR THE OPTIMAL DESIGN WITH GENETIC ALGORITHMS Lucian TUDOSE, Daniela JUCAN Technical University of Cluj-Napoca DYNAMIC REACTIVE FORCES IN BEARINGS DUE TO THEIR ELASTIC COUPLING Marius Beniamin FAZECAŞ, Mircea Bogdan TĂTARU UNIVERSITATEA DIN ORADEA mfazecas@uoradea.ro, btataru@uoradea.ro IMPLEMENTATION OF DIGITAL ASYNCHRONOUS SYSTEMS USING PULSE MODE ALGORITHM Mihai TIMIS, Alexandru VALACHI Technical University “Gh. Asachi” Iasi, Automatics Control and Computer Science and Engineering Faculty, Computer Science and Engineering Department mtimis@cs.tuiasi.ro, avalachi@cs.tuiasi.ro BIOMECHANICAL STUDY OF TUMBLING IN GYMNASTICS Mircea BARBUCEANU University of Pitesti, Faculty of Sciences, ROMANIA mircea_barbuceanu@yahoo.com BIOMECHANICAL MODELING OF VOLLEYBALL BUMP Mircea BARBUCEANU, Sorin ANGHEL, Daniela GIOSANU, Ion IORGA-SIMAN University of Pitesti, Faculty of Sciences, ROMANIA mircea_barbuceanu@yahoo.com BIOMECHANICAL PREVISIONS OF ACCIDENTS IN JUDO Mircea BARBUCEANU1), Nicolae–Doru STANESCU2) 1)University of Pitesti, Faculty of Sciences, ROMANIA, 2)University of Pitesti, Department of Applied Mechanics mircea_barbuceanu@yahoo.com, s_doru@yahoo.com THIN GRANULAR LAYER ON A VIBRATING PLATE. GINZBURG-LANDAU EQUATION Mircea Bogdan TATARU University of Oradea btataru@uoradea.ro THIN GRANULAR LAYER ON A VIBRATING PLATE. SWIFT–HOHENBERG EQUATION Mircea Bogdan TATARU University of Oradea btataru@uoradea.ro INFLUENCE OF SUSPENSION ON THE VEHICLE DYNAMIC PERFORMANCE Mircea FENCHEA, Alexandru BOLTOSI Politehnica University of Timisoara mfenchea@yahoo.com ON THE VARIATION OF THE REGIMES OF GRAIN JUMP MOVEMENT ON SIEVES Mircea HORGOS, Dinu STOICOVICI North University of Baia Mare mhorgos@ubm.ro A MATHEMATICAL MODEL TO ESTABLISH THE OPTIMUM JUMP REGIME OF AN ELECTROMAGNETIC VIBRATOR Mircea HORGOS, Dinu STOICOVICI North University of Baia Mare mhorgos@ubm.ro MEASUREMENT UNCERTAINTY – REQUIREMENT OF VALIDITY TEST RESULTS Monica Lilioara CHERECHEŞ, Maria Luminiţa SCUTARU National Institute for Building Research - INCERC Iasi, University Transilvania of Brasov putina_monica@yahoo.com, lscutaru@unitbv.ro “IN SITU” BUILDING INVESTIGATION – NECESSARY STAGE FOR DETERMINATE COMPLICATED DIAGNOSTIC Monica Lilioara CHERECHEŞ, Maria Luminiţa SCUTARU National Institute for Building Research - INCERC Iasi, University Transilvania of Brasov putina_monica@yahoo.com, lscutaru@unitbv.ro ECONOMIC ASPECTS CONCERNING THE HEATING POINT AT THE UNIVERSITY OF ORADEA Negrea Dan-Vergiliu, Bococi Dana ; Gomboş Dan, Durgău Maria ; Danciu Bogdan Politechnical University of Timisoara, University of Oradea ANALYSIS OF THE PROSPECTS OF THE HEATING POINT AT THE UNIVERSITY OF ORADEA Negrea Dan-Vergiliu, Bococi Dana ; Gomboş Dan, Durgău Maria; Danciu Bogdan Politechnical University of Timisoara, University of Oradea ASSESSMENT OF NUMERICAL MODELS AND METHODS FOR NOISE RADIATION PREDICTION Nicolae FANTANA*, Tudor MITRAN* Universitatea din ORADEA MEASURING BULK PROPERTIES OF SOUND-ABSORBING MATERIALS USING THE TWO-SOURCE METHOD Nicolae FANTANA*, Tudor MITRAN* Universitatea din ORADEA ON THE STUDY OF NON-LINEAR SUSPENSION Nicolae–Doru STANESCU University of Pitesti, Department of Applied Mechanics L’ETBABLISMMENT DE LA MATRICE DE LIESION D’ENTRE LES DEFORMATIONS SPECIFIQUES ET DEPLACEMENTS ( LA MATRICE B ) POUR LE CALCUL À LA FLUAGE AUX SISTEME DES CONDUCTS - LA PREMIERE PART – Niculae GRIGORE L’Université du Petrol- Gaze de Ploiesti SOME CONSIDERATIONS REGARDING COLLISION MODELS Ramona NAGY, Alexandru BOLTOSI “Politehnica” University of Timişoara, Department of Mechanics and Mechanical Vibrations rnagy@mec.utt.ro, boltosi@yahoo.com MECANIZAREA PROCESULUI TEHNOLOGIC ÎN EXPLOATAREA LA ZI A CARBUNELUI SI NECESITATEA REABILITARII TERENURILOR DEGRADATE Roxana Gabriela POPA, Irina Ramona CORNESCU, Maria CALINOIU Universitatea “Constantin Brâncusi”, Tg -Jiu, Gorj COMPUTATION PROGRAMS FOR CEPSTRUM ANALYZE Sorin PATER, Ion BRATU, Tudor MITRAN, Andrei COCAINĂ University of ORADEA REACTIONS IN ONE DEGREE OF FREEDOM MULTIBODY SISTEMS WITHOUT SOLVING THE MOTIONS EQUATIONS Sorin VLASE, Horatiu TEODORESCU, Arina MODREA, Violeta MUNTEANU TRANSILVANIA University of Brasov svlase@unitbv.ro THE STUDY OF THE TRANSITION IN THE FRETTING PHENOMENON Ştefan GHIMISI University Constantin Brâncuşi of Târgu Jiu STRESS STATE IN A BENT PLANE WITHT TWO DIFFERENT CIRCULAR HOLES (THE AXES OF CENTERS IS NORMAL TO THE NEUTRAL AXIS OF THE PLANE) Stelian ALACI, Emanuel N. DIACONESCU University of Suceava ASPECTS CONCERNING THE USE OF SOLAR ENERGY Tania POPA University of Oradea tania_popa@yahoo.com A FEW CONSTRUCTIVE RESOURCES ABOUT A NEW ELECTROSTATIC MOTOR Teodor Maghiar*, Titus Deliman**, Karoly Bondor*** *) ***)University of Oradea, Electrical Engineering and Technology of Information Faculty **) University of Oradea, Managerial Engineering and Technology Faculty CORELLATION OF THE CRITERIA SIMILITUDINES Timur Chis CONPET S.A. PLOIESTI, CONSTANTA BRANCH tchis@yahoo.com THE FRICTION FACTOR ANALYSIS Timur Chis CONPET S.A. PLOIESTI, CONSTANTA BRANCH tchis@yahoo.com CONSTRUCTION PRINCIPLE AND THEORETICALLY APPROACH FOR A STRANGE ELECTROSTATIC EFFECT WHO CAUSE MECHANICAL MOTION Titus Deliman University of Oradea THE POSSIBILITIES OF USING ULTRASONIC TESTING IN CONTROL QUALITY OF RAILS Veronica ARGESANU; Daniel TUNEA; Dan MALAI; Mihaela JULA; Mirela LAPADAT UNIVERSITY "POLITEHNICA" TIMISOARA argesanuvera@mec.utt.ro STUDIES AND DEVELOPMENTS RELADED TO THERMOGASDINAMICS FOR A DIESEL ENGINE WITH NORMAL ADMISSION IN CORRELATION WITH DATA PROCESSING BY FUZZY FUNCTIONS - PART I Virgiliu Dan Negrea*, George Dragomir**, Florian Blaga** , Liviu Georgescu*** * ) “Politehnica” University of Timisoara, ** ) University of Oradea, ***) “Politehnica” University of Bucharest negrhometm@yahoo.com, georgedragomir@yahoo.com, fblaga@uoradea.ro, liviugeorgescuro@yahoo.com EXPERIMENTAL STUDY OF WAVE PROPAGATION IN CIRCULAR CROSS SECTION BEAMS Voichita HULE, Daniel TRIP, Gheorghe ABRUDAN University of Oradea   Copyright 2011 CNCSIS ACCREDITATION 2002-2004, "Clasa B" 2005-2006, "Clasa B+" 2007-2011