A.  MATERIALS

1. ALUMINIUM SHEETS IN CAR BODY CONSTRUCTION
1 Laurenţiu ALBU, 2Adriana CÎRSTOIU, 3Le Drezen Philippe
1PhD. Eng., Automobile Registration of Romania, E-mail: lancosa@yahoo.com
2PhD. Eng.,  Valahia University of Targoviste, Romania, E-mail: adriana_cirstoiu@yahoo.com
3Professeur Agrégé L’IUP Génie Mécanique et Productique, Université de Bretagne Occidentale, Brest, France. E-mail : Philippe.LeDrezen@univ-brest.fr

Keywords: aluminium sheets, car body, corrosion-resistance

2. REFRACTORIES BASED ON CERAMIC FIBRES USED IN INSULATING THERMO-TECHNOLOGICAL AGGREGATES
Nicolae Angelescu1 , Gheorghe Surugiu2
1PhD Eng. Prof. – VALAHIA University Târgovişte, Email: nicolae.angelescu@yahoo.com
 2Eng. – ICEM- Metallurgical Research Institute Bucharest, Email: george@metal.icem.ro
Abstract. the work presents the main characteristics of some types of refractory materials based on ceramic fibers used at coating industrial furnaces. The refractory coatings of the industrial thermo-technological aggregates represent an essential component in achieving the technological parameters as well as in improving the energetic and ecological performances of these aggregates. The main types of refractory materials based on ceramic fibers used at coating the industrial furnaces were analyzed and it was concluded that by using such insulating materials substantial increases of the energetic and ecological efficiency of the modernized thermo-technological aggregates can be reached.
Keywords: ceramic fibres,  insulating thermo-technological

3. PROCESSING TECHNOLOGICAL ASPECTS OF FOR PRODUCTS’ RECONDITION 
Marian IONESCU1, Ileana Nicoleta  POPESCU2, Aurora Anca POINESCU3,
1,2,3Valahia University fromTârgovişte, Faculty of Materials Engineering, Mechatronics and Robotics
E-mail:1 ionescu_c_marian@yahoo.com, , 2 pinicoleta24@yahoo.com, 3 poinescua@yahoo.com
Abstract. The pieces made from copper alloys, such as Al-Cu-Ni-Fe-Mn present advanced wear can be reconditioned by electric arc welding by means of special electrodes, compatible with the basic material. In this work are presented experiments to obtain some special-coated electrodes from sintered powder materials.
Keywords:, cooper alloys

4. NEW MATERIALS FOR LEVIGATE OXIDATION
S.M. Avramescu1, R.C. Fierascu1,2,3, A. Biziru1, N. Mihalache1, M. Neata 1,2
1University of Bucharest, Chemistry Department, Bucharest, Romania.
2ICECHIM, Bucharest; 3Valahia University, Targoviste, Romania
Abstract. The  photochemical degradation processes is generally based on oxidative reactions initiated by very reactive radicals , such as OH radicals. However, there are a number of refractory substances that degrades very slowly under these conditions. The heterogeneous photocatalysts seems to be one of the most efficient way to destroy aquatic pollutants.
Keywords: levigate, catalysis

5. PERCOLATION THEORY APPLIED ON ELECTRICAL CONDUCTIVITY IN NANOCOMPOSITES BASED ON POLYPYRROLE
D-.V. Brezoi1, Siniša Vučenović2
1Valahia University, Bd. Regele Carol I, No. 2, 130024, Târgovişte, România, E-mail: dragosh_brezoi@yahoo.com
2Medicinski Fakultet, Save Mrkalja 14, Banja Luka, Bosnia Herzegovina
Abstract. Percolation theory deals with the formation of clusters in disordered media. At the percolation threshold for the first time more clusters appear, that provide the increase of electrical conductivity. In this work, it has been studied three different nanocomposite systems: CoFe2O4-PPy, Fe3O4-PPy, and NiFe2O4-PPy.
Keywords: polymer composites; percolation; electrical conductivity

7. ASPECTS CONCERNING INTERACTIONS IN THE INTERFACE OF METAL MATRIX - COMPOSITE  MATERIAL DURING THE PROCESS OF  METAL COVERING
Ilie BUTNARIU
Prof. PhD. University “POLITEHNICA” Bucharest
Abstract.This paper presents theoretic and practical aspects related to the types of interactions that appear at the interface between the metallic matrix and the complementary composite material in the process of metal-coating of  the part numbers that work in special conditions.
Keywords: metallic matrix composite  material , metal covering

8. EXPERIMENTS ON THE PERPENDICULAR GIANT MAGNETORESISTANCE IN MAGNETIC MULTILAYERS
Cosmin COBIANU1, Nicoleta BANU2,
1Valahia University of  Targoviste, Electrical Engineering Faculty ,  2Politecnico di Torino, Dipartament di Ingeneria Elettrica, Torino-Italia,  E-mail: cosmincobianu@yahoo.com,  bn_nicky@yahoo.com
Abstract.In this paper an overview is presented on the different techniques that are used to study the giant magnetoresistence (MR)  in magnetic multilayer. The perpendicular MR effect (CPP-MR) appeared particulary attractive to experimentalists, because it typically is a factor two to five larger than the corresponding current-in-plane MR effect (CIP-MR). This makes the subject of interest both for fundamental physical reasons and also for possible applications.
Keywords: perpendicular MR effect (CPP-MR), current-in-plane MR effect (CIP-MR)

9. THERMAL ANALYSIS OF ANCIENT PAPERS FROM ROMANIAN DOCUMENTS
S. Doncea1, S. F. Pop1, S. Şerban1, R. M. Ion1,Inci Aksahin2
ICECHIM, Analytical Department, 202 Splaiul Independentei,
2Ankara Test and Analysis Laboratory, Scientific and Technical Research Council of Turkey, Ankara 06330, Turkey
 E-mail: sandamariadoncea@yahoo.com
Abstract. In addition to cellulose fibres paper contains hemicellulose, lignin and certain amount of additives, e. g. fillers, pigments and metal ions. Antique paper is made essentially from cellulose and water in almost equimolar amounts and animal glue used for sizing. In this paper we report a characterization for different ancient Romanian documents (from private collections) by thermal analysis TGA. The final purpose of this research is to understand the degradation processes and to find a way to conserve the ancient paper documents.
Keywords: paper, cellulose, ancient documents, thermal analysis

10. MICROMECHANICAL MODEL FOR ELASTO-PLASTIC FRACTURE OF METALLIC MATERIALS A.T. Dumitrescu1, M. Plancak2, 1University “Valahia” Târgovişte,  2University of Novi Sad, Serbia

11. DEFECT IN A HSLA X70 PLATE
A.T.Dumitrescu1, A. Catangiu1,  E.G.Galvan2
1University “Valahia” Targoviste,  2AHMSA-Mexic
Abstract. HSLA steels production is sensitive to many processing parameters values, sensitivity which increases along with steel strength increasing. The appearance of different defects in the hot rolled HSLA plates is difficult to predict and to establish the real causes of these defects. The paper presents the analysis  achieved for determining  the causes of cracks appearance in a X70 HSLA plate.
Keywords: HSLA steels, cracks defects

12. MODERN ANALYTICAL METHODS APPLIED IN ARCHAEOMETALLURGY: COIN ANALYSIS
I. Dumitriu1,2, R.-C. Fierascu 1,2, M.-L. Ion 3, A. Catangiu2, R. – M. Ion1,2, Inci Aksahin4
1 National Research & Development Institute for Chemistry and Petrochemistry – ICECHIM, Bucharest
2 Valahia University, Targoviste  3 University of Bucharest, Art History Faculty, Bucharest
4Ankara Test and Analysis Laboratory, Scientific and Technical Research Council of Turkey, Ankara 06330, Turkey
Email: radu_claudiu_fierascu@yahoo.com
Abstract:It has become quite apparent in the recent years that natural sciences such as chemistry, physics, earth sciences, biology and their associated technologies increased their role for the study and preservation of our historical patrimony. This is even perceived by the general public, during some important art exhibitions where one  section is devoted to the scientific examinations of the works, or to a report of their restorations, is offered to the public’s attention. Archaeometallurgy is the study of metalworking structures, tools, waste products and finished metal artefacts, from the Bronze Age to the recent past. It can be used to identify and interpret metal working structures in the field and, during the post-excavation phases of a project, metal working waste products, such as slags, crucibles and moulds.The technologies used in the past can be reconstructed from the information obtained. Scientific techniques are often used by archaeometallurgists, as they can provide additional information.
Keywords: EDXRF, optical microscopy, romanian coins, archaeometallurgy

13. PHYSICAL-MECHANICAL BEHAVIOR OF SOME POLYMERS MIXTURES
Maria-Cristiana ENESCU1, Ileana-Nicoleta POPESCU1, Marie-Rose GARDA2,
 Alexander FAINLEB3,  Jean-Marc SAITER2
1Valahia University of Tirgoviste, Faculty of Materials Science and Engineering, Mechatronics and Robotics,
2 LECAP, University of Rouen, Faculty of Sciences, Saint Etienne du Rouvray, France, 3Institute of Macromolecular Chemistry of National Academy of Sciences of Ukraine, Kiev, Ukraine, E-mail : cristiana_enescu@yahoo.com, pinicoleta24@yahoo.com, jean-marc.saiter@univ-rouen.fr; marie-rose.garda@univ-rouen.fr
Abstract. Because the polymeric materials have a wide applicability in biomaterials we propose in this paper to improve their properties, especially to obtain a better biocompatibility of them. For that reason we tested the three types of polymer blends using following methods of physical-mechanical analysis: Differential Scanning Calorimetry (DSC) investigations, Thermo Mechanical Analysis in static (TMA) and dynamic conditions (DTMA), Thermo-Gravimetric Analysis (TGA ) and Fourier Transform InfraRed Spectrometry (FTIR). The three types of polymers was 1st) PU2000/PC,  2nd) PU / CPL and the 3rd) PUF / CPL,  where PU2000 is abbreviations of Polyurethane with 2000 molecular weight,  PU is abbreviation of PolyUrethane,  PC is PolyCyanurate of Bisphenol and respectively  PUF  become from PolyUrethane with Fluorine atoms.  Polymer blends have been obtained in different chemicals compositions , in percent,  to determine which is  the optimal composition from the behavior point of view . After analysis we observed that the best behavior presented a first series PU2000/PC (with compositions 50/50,15/85, 5/ 95).
Keywords: Polyurethane, copolymerization, DSC, TGA, TMA, DTMA, FTIR

14. POLLUTION OF THE ENVIRONMENT WITH POLYMER MATERIALS WASTE AND MATERIALS RECOVERY
Maria-Cristiana Enescu1 , Lucretia Mariana Constantinescu2, Ileana-Nicoleta Popescu3, Laurent Vassalo4
 1,3Faculty of Materials Engineering, Mechatronics and Robotics, Valahia University of  Târgovişte,
2Faculty of Economic Science, Valahia University of  Târgovişte, 4Montpellier 2 University of Science
and Technology - IUT Béziers, Department of Technical Marketing
E-mail:1 cristiana_enescu@yahoo.com,  2 maraluconstantinescu@yahoo.com, 3 pinicoleta24@yahoo.com, 4 lvassal@club-internet.fr
Abstract. After 1950, plastic materials have become much interest in less than ten years, the production of plastics increasingly sharply. The annual consumption can now be comparable to that of non-ferrous metals. Currently there are about 40 types of plastics, each with a chemical composition and other properties that make them suitable for a particular purpose. The plastic is made from oil, gasoline and coal. Most of the materials used to manufacture plastic residue oil refinery, which would otherwise be wasted or burned. Many waste is recyclable waste. As a result we propose to manufacture plastic materials from recyclable waste. The recycling of plastics has grown steadily, a wide range of them being produced in many countries. Instead of polluting water in rivers or large areas of soil accumulation, PET can be easily collected and recycled, what can be done easily with the help of special containers in many areas of the city. This work presents the degradation of these plastics, waste treatment, the garbage and other products used or unused, and transform them into material that can be biodegradable. It also presented an economic analysis of waste plastics produced from the area Muntenia, (in Romania) and finally, a European approach.
Keywords: plastic recycling, waste biodegradation, economic analysis

15. MATHEMATICAL MODEL FOR CALCULATING THE REDUCTION IN THE SHAREHOLDING OF NATURAL GAS FUEL USED IN HEATING FURNACES
PhD. Eng.  Gaba Aurel1, Ph. Anghelina Florina Violeta1,  PhD. Eng. Alexandru Craciun2
1Valahia University from Târgovişte, Faculty of Materials Engineering, Mechatronics and Robotics
2Universitatea de Stat Chisinau, Republica MOLDOVA
Abstract: The reduction of shareholding of natural gas fuel used in heating furnaces can be achieved by increasing the temperature of preheating the air for combustion, the introduction preheating bigas composed of gas furnace and natural gas and the use of air enriched in oxygen. To determine various options to reduce its shareholding natural gas used a computer program whose mathematical model described in the paper.With this program were calculated by the burning of combustible gas mixtures, gas furnace - natural gas, according to preheat combustion air and fuel and enriching oxygen in the air for combustion. In order to variant choice of operating with reduced participation of natural gas have been calculated specific fuel consumptions of a heating furnace.
Keywords: shareholding, natural gas fuel,  heating furnaces

16. NONCONVENTIONAL METHOD OF THIN LAYERS DEPOSITION (CHEMICAL VAPOR DEPOSITION - CVD) OF P2O5 ON PHOSPHOSILICATE GLASSES FOR SEMICONDUCTOR TECHNOLOGY
R R.M. Ion1,2, C. Bercu1, R.C. Fierascu1,2, I. Dumitriu1,2 , Inci Aksahin3
1 National Research & Development Institute for Chemistry and Petrochemistry – ICECHIM, Bucharest
2 Valahia University, Targoviste;  3Ankara Test and Analysis Laboratory, Scientific and Technical Research Council of Turkey, Ankara 06330, Turkey
Abstract:Internal modes of vibrations are studied here at different temperatures (400-900 OC) and in the frequency range 400-1600 cm- 1 through heat treatment. The baseline method was used. The strong bands of SiO4 tetrahedra in this glass show an increase in absorbance at high temperature (800-900 OC).  Also from a study of the temperature dependence of the relative integrated intensity of the modes 600-800 and 850-1450 cm –1 is correlated with the concentration of phosphorus oxide (P2O5) in silica oxide (SiO2).
Keywords: thin layer deposition, CVD, semiconductors

17. COMPOSITIONAL ANALYSIS OF THE IRON ORES FROM ANCIENT ARCHAEOLOGICAL SITE COVASNA
R.-M. Ion1,2, D. Boros3, M.-L. Ion4, I. Dumitriu1,2, R.C. Fierascu1,2, C.Radovici2, C. Bercu2 , Inci Aksahin5
1Valahia University, Targoviste, Romania; 2ICECHIM, Bucharest;   3National History Museum of Transilvania, Cluj, Romania; 4University of Bucharest, Art History Faculty, Bucharest, Romania
5Ankara Test and Analysis Laboratory, Scientific and Technical Research Council of Turkey, Ankara 06330, Turkey
Abstract: Metal analyses of iron ores from Covasna archaeological site were performed by inductively-coupled-plasma atomic-emission spectrometry (ICP-AES), coupled with energy dispersion X-ray fluorescence (EDXRF), X-ray diffraction (XRD) and Infrared spectroscopy with Fourier Transform (FTIR). It can be demonstrated that for iron ore processed in early Roman times, Sr are much less ambiguous than Pb in providing clearly coherent signatures for ore and related iron objects. Late Roman iron objects were produced from iron ores that as yet remain unidentified. Our study demonstrates that iron objects can be precisely analyzed for their composition, which appears to be a much more powerful tool for distinguishing between chronological groups and determining the provenance of raw materials. It is mineralogically dominated by hematite. The metallurgical waste shows an exceptional chemical composition, with remarkably elevated TiO2, V2O5, CaO, MgO, Al2O3, SiO2, MnO, Fe2O3, ZnO, K2O, PbO, Sr, Zr contents.
Keywords: iron ore, ore provenance, roman, ICP-AES, tridimyte

18. MODERN ANALYTICAL METHODS FOR HISTORICALGLASS ARTEFACTS ANALYSIS
R.-M. Ion1,2, M.-L. Ion4, R.C. Fierascu1,2,I. Dumitriu1,2, St.Coşuleţ5, V.I.R. Niculescu3 , Inci Aksahin6
1Valahia University, Targoviste, Romania; 2ICECHIM, Bucharest; 3INFLPR, Magurele, Bucuresti
4University of Bucharest, Art History Faculty, Bucharest, Romania, 5Regional History Museum Brasov, Romania
6Ankara Test and Analysis Laboratory, Scientific and Technical Research Council of Turkey, Ankara 06330, Turkey
Abstract. Antique glasses can be generally found as one of the architectural components in several heritage places from Europe and not only. Glassmaking has been as industrial activity for more than four thousand years. The medieval stained glass constitute a part of our cultural heritage that has been exposed to environmental damage over centuries. The main purpose of this paper is to provide new insights into the composition and deterioration sources of stained glass. To analyse the ancient glass, have been used small pieces of broken glass without any possibility to be included in other pieces. Different coloured glass (brown, green, uncoloured) were quantitatively analysed by EDXRF. Assuming that each kind of glass can be characterized by a specific composition of major, minor and trace elements, the selection of appropriate analytical methods is essential. In this work, ICP-AES was used complementary to EDXRF which gives an overall view of the samples’ composition. By applying ICP-AES, it was possible to determine a number of elements which are present bellow the detection limit of EDXRF and to evaluate the homogeneity of investigated material. It was possible to determine me new elements which could not be determined by others techniques.
Keywords: ancient glass, EDXRF, ICP-AES

19. ELECTRON MICROSCOPY OF Co, Zn, Pd AND Ni-TETRA-NAPHTYL-PORPHYRINS CORRELATED WITH PHOTODYNAMIC ACTIVITY
R. – M. Ion1,2 , K. Gunaidin3,  R.-C. Fierascu 1,2, I. Dumitriu1,2
1 National Research & Development Institute for Chemistry and Petrochemistry – ICECHIM, Bucharest
2 Valahia University, Targoviste;  3Istanbul University, Istanbul, Turkey
rodica_ion200@yahoo.co.uk
Abstract. Metallo-porphyrins are the most proper organic compounds with applications in photodynamic therapy of cancer. Due to their complex structure it is very important to complete the characterization methods area in order to elucidate different aspects of their activity. This paper deals with the electron microscopy analysis of Co, Zn, Pd and Ni-tetra-naphtyl-porphyrins. The obtained results are well correlated with others spectral methods UV-Vis, IR spectrophotometries and emission spectroscopy. The synthesized metallo-poprhyrins have been tested during the photodynamic inactivation of Saccharomices Cerevisiae.
Keywords: metallo-porphyrins, photodynamic therapy, photodynamic activity

20. TETRA-P-SULPHONATO-PHENYL-PORPHYRIN (tspp) – CHITOSAN BIOMATERIALS: PREPARATION AND PROPERTIES
R. M. ION1,2, S. F. POP1,2, S. DREVE3, Inci AKSAHIN4
1 ICECHIM, Bucuresti, 2 Universitatea VALAHIA, Targoviste, 3 INCD-ITIM, CLUJ-NAPOCA, Romania
4Ankara Test and Analysis Laboratory, Scientific and Technical Research Council of Turkey, Ankara 06330, Turkey
 E-mail:  rodica_ion2000@yahoo.co.uk
Abstract. Chitosan is a unique polysaccharide derived from chitin and is present in the hard exoskeletons of shellfish like shrimp and crab. In solution and gel, it can be used as carriers for slow release or controlled action of drugs (such as TSPP). Interaction of TSPP with chitosan is studied in aqueous solution. The effect of pH TSPP is discussed evaluating the association with chitosan: stacking (H-type) aggregates predominates at weak acid concentrations (pH 4.8-6.8) and tilted (J-type) aggregates at pH 2.5. At the intermediate pH value (3.6) both types of TSPP aggregates were detected. High amount of chitosan disrupts H-aggregates forming monomeric porphyrinc porphyrin-chitosan complexe. J-aggregates are stable even at very high chitosan concentrations.
Keywords:chitosan, medicine, nanoparticles, drug-carriers, TSPP, J-aggregate, H-aggregate.

21. DEPOLLUTION OF HALOGENATED ORGANIC COMPOUNDS FROM WASTE WATER BY STRIPPING AND OXIDATION
M. Neata1, F. Ruta1, R.C. Fierascu1,2,3, I. Dumitriu1,2,3
1University of Bucharest, Chemistry Department, Bucharest, Romania
2Valahia University, Targoviste, Romania; 3ICECHIM, Bucharest;
Abstract : In the last years, the attention was increasingly drawn to environmental quality, being necessary many studies for performing of some modern technologies for industrial wastewater treatment. In this paper, a two-steps treatment procedure of volatile chlorinated organic compounds-contained wastewaters is presented:  air stripping of COClV from wastewaters and advanced oxidation of produced flow stream on hydrophilic and hydrophobic catalytic systems. The obtained results have revealed that COClV removal by stripping and catalytic oxidation in gaseous phase is a performant procedure for industrial wastewater treatment.
Keywords: COClV, wastewaters,

B. MECHANICS

1. THEORETICAL RESEARCH OF INDUSTRIAL ROBOTS USED IN TECHNOLOGICAL SYSTEMS
1)Constantin STĂNESCU,  2) Adriana CÎRSTOIU, 3Le Drezen Philippe
1) PhD. Eng.  University Polytehnica of Bucharest, Romania, E-mail: prof_cstanescu@yahoo.com
 2) PhD. Eng.  Valahia University of Targoviste, Romania, E-mail: adriana_cirstoiu@yahoo.com
3Professeur Agrégé L’IUP Génie Mécanique et Productique, Université de Bretagne Occidentale, Brest,
France. E-mail : Philippe.LeDrezen@univ-brest.fr
Abstract: This paper presents the cinematic structure of the robot for the manufacture of the technological systems and of the machine tools. The construction of the robot is very simple. The robot can walk move on a horizontal plan and it can walk move and descend on an inclined or vertical plan. This mechanism are composed of levers gear with transmission wheels, cinematic joints of rotation and translation, elements of articulation, transmission system of translation and rotation movements, from the engines to the inferior parts of the industrial robots used in technological systems.
Keywords: robot, manufacture, machine-tools, cinematic joints

2. Automotive Door Latch Mechanisms 1) Ovidiu Antonescu, 2) Dan UDRISTE, 1) Paun Antonescu 1) Mechanism and Robot Theory Dep., Univ. Politehnica Bucharest, Romania,  2) Keykert USA,
E-mail: oval33@hotmail.com, panton38@hotmail.com, Dan_Udriste@keykertusa.com
Abstract:Construction of mechanisms utilized as of the automotive door, vary from one manufacturer to another. These systems are designed as planar or spatial (mono mobile or multiple mobile) mechanisms. These mechanisms can be grouped in three major categories: a) Hood latches (engine hood), b) Deck lid latches (luggage compartment hood), c) Side door latches (front and rear side doors).
Keywords: mechanisms, kinematical, automotive door, hoot latch.
3. NEW MATERIALS AND PROCESSING TECHNOLOGIES FOR TITANIUM AND TITANIUM ALLOYS IN BIOMEDICAL, BIOMECHANICS AND  MECHATRONICS APPLICATIONS
Ciobota Nastase-Dan
National Institute of Research and Development for Mechatronics and Measurement Technique
Sos. Pantelimon 6-8, Sector 2, 021631, Bucuresti, ROMANIA, dan_ciobota@yahoo.com
Abstract. Because our international conference is called “The 6th Symposia with International Participation for Mechatronics, microtechnologies and new materials”this paper present an specifically new technology in manufacturing. This technology is relatively new (’90-2000 generation) but specifically for titanium is a top technology.
Keywords: mechatronics, biomechanics, rapid prototyping, new materials and alloys, 3D modelling

4. BUNKER DESIGN ASPECTS
PhD. Gheorghe ENE
University POLITEHNICA Bucharest
Abstract. This work studies the main rheological characteristics of the powder and granular materials’ behavior in different equipments and installations (storage, transport, handling, processing). Using these characteristics one developed a method for designing the storage bunkers for powder and granular materials (pressure on bunker’s walls, discharge hopper angle, bunker’s outlet dimension).
Keywords: powder and granular materials, rheological characteristics

5. SOME ASPECTS REGARDING THE VIBRATIONS GENERATORS OF SCREENS DESIGN
PhD.  Gheorghe ENE
University POLITEHNICA Bucharest
Abstract. This work deals with the dynamics of the inertial vibrating screens with circular vibrations and aspects regarding the dimensioning and designing of the vibrations generators with rotating eccentric masses used to excite this kind of screens.
Keywords:  inertial vibrating screens, vibrations generators

6. SPECTS REGARDING THE MATERIALS GRINDING FINENESS
PhD.  Gheorghe ENE
University POLITEHNICA Bucharest
Abstract. This work shows different methods of evaluating the grinding fineness of the materials. The most used one is the method of specific surface. One shows in the same time some relations between different options of evaluating the grinding fineness.
Keywords: grinding fineness, method of specific surface

7. INFLUENCE OF UNEVEN  SUPPORT GROUPS TO  REACTION VALUES AND BENDING DIAGRAMS OF ROTARY KILN
Phd. Eng. Gheorghe ENE1  , Phd. Eng. Cornel MARIN2
1POLITEHNICA University of Bucuresti    2VALAHIA University of Targoviste
Abstract.  This paper presents a new analytical method of calculating the reaction of support rotary kiln, regarded as an indeterminate static problem. It is the Y -Method and the  equation of three displacements using Y loading function [3],[4], which eliminate the disadvantage of the classic graphical - analytical method CLAPEYRON. This method allows an easier calculation of reaction in situations when it is necessary to consider uneven supports as well.
Keywordsrotary kilns, reaction of support, indeterminate systems

8. GEOMETRY and DIRECT kinematics of parallel manipulators - 6 actuator SCS type
1) Viviana Filip, 2) Ovidiu Antonescu, 3) Sevasti MITSI
1) PhD. Eng.  Valahia University of Targoviste, Romania, v_filip@yahoo.com
2) PhD. Eng.  University Polytehnica of Bucharest, Romania, oval33@hotmail.com
3) PhD. Eng., Aristoteles University of Thessaloniki, Greece, mitsi@eng.auth.gr
Abstract: The paper presents a new way of the topological geometry for the parallel manipulators (PMp) regarding the calculation of mobility (degree of freedom – d.o.f.) of complex mechanisms. The parallel manipulators are complex topological structures having the joints (as kinematical pairs) of various types. On those manipulators, we present a new formula for mobility calculation related to the kinematical chain number, considered identically to the actuators. This paper also presents a new method for the direct kinematics of spatial parallel manipulators with six actuators. Two kinematical structures of PMp have been analyzed. In the case of 6-leg PMp, 18 nonlinear equations were obtained; that equation system with 18 unknown parameters being solved by means of Mathematica software. In that case the analytical solution is not possible, but a numerical solution for particular cases can be found.
Keywords: geometry, kinematics, mobility, parallel, manipulators

9. Geometry and DIRECT kinematics of parallel manipulators with five actuators
1) Viviana Filip, 2) Ovidiu Antonescu, 3) Sevasti MITSI
1) PhD. Eng.  Valahia University of Targoviste, Romania, E-mail: v_filip@yahoo.com
2) PhD. Eng.  University Polytehnica of Bucharest, Romania, E-mail: oval33@hotmail.com
3) PhD. Eng., Aristoteles University of Thessaloniki, Greece, E-mail: mitsi@eng.auth.gr
Abstract: The paper presents a new way of the structural - topological analysis for the parallel manipulators, with referring to the calculation of mobility (degree of freedom (d.o.f.)) of complex mechanisms. The parallel manipulators are complex topological structure, having the joints (as kinematical pairs) of various types. This paper presents a new method for the direct kinematics of the spatial parallel manipulators with five actuators. For the PMp with five actuators were obtained 15 nonlinear equations. This equations system with 15 unknowns can be solved with Mathematica Program. The analytical solution was not possible, but we obtained the numerical solutions for particular cases.
Keywords: geometry, kinematics, mobility, parallel, manipulators.

10. THE MECHANICAL MODEL OF THE HUMAN KNEE’S
Daniela Florescu1, Iulian Florescu2
1Conf. univ. dr. ing, Facultatea de Inginerie, Universitatea din Bacău, dflorescu@ub.ro
2 Prof. univ. dr. ing, Facultatea de Inginerie, Universitatea din Bacău, iflorescu@ub.ro
Abstract. It is know that the knee is arguably the most complex and well used joint in the human body. Therefore it is important to sustain its health, or to repair it with similar function of fractures. The purpose of the theme is to create a model of human knee and to get acquainted with the kinematical and kinetically attributes of the intact human knee.
Keywords: human knee, mechanical model, boundary conditions,

11. THEORETICAL STUDY ABOUT ELECTRICITY FROM SEA WAVES
Florescu, I1, Florescu, D2, Nedelcu I3.
1Prof. univ. dr. ing, Facultatea de Inginerie, Universitatea din Bacău, iflorescu@ub.ro
2Conf. univ. dr. ing, Facultatea de Inginerie, Universitatea din Bacău, dflorescu@ub.ro
3Prep. univ. drd. ing, Facultatea de Inginerie, Universitatea din Bacău, iulian.nedelcu@ub.ro
Abstract: During the next 20 years, experts foresee a need for 1500 GW of additional power supply to meet new demand. This equals to 15000 power plants that are 100 MW each and 59 million barrels of oil consumed in each day. The specialist’s estimates that the developing countries alone will need to spend $100 billion each year for the next 30 years installing new power plants most of which will be in the equatorial Zone and Europe. Among the alternate energy resources, wave energy is considered as one of the promising alternate energy resources that has high availability factor (day & night) compare with other resources such as Wind energy or Solar energy.
Keywords: energy, waves, adaptability, wave height

12. THE INTEGRATION OF MECHATRONICS, ROBOTICS AND INTEGRONICS – A POLYVALENT AND MULTIDISCIPLINARY SCIENCE
PhD. Eng. Gheorghe GHEORGHE1 ,  Stergios GONATIOS2
1National Research and Development Institute in mechatronics and Measurement Technique– Bucharest, Romania,
2West MACEDONIA -T.E.I. University,  KOZANI Greece
Email: cefin@cefin.ro; incdmtm@incdmtm.ro, ganatsios@kozani.teikos.gr
Abstract. The work represents a new generation of the engineering science, a polyvalent one that integrates new technical and scientific disciplines, with a global applicable potential for the Romanian industry and economy. The integration and the multiplication of technical sciences through mechatronic, robotic and integronic engineering is an expression of the new concepts that form the triad: technological production focused on the development of new mechatronic, robotic and integronic products, situated in the vanguard of the development of new technologies and nano-technologies, the development of new materials and nano-materials, of new products and nano-products, all belonging to the subsequent fields and nano-fields and, last but not least, the productive technology focused on the development of new processes and nano-processes, in the context imposed by eco-productions, eco-technologies and eco-fields.
Keywords: robotic, mechatronic, integronic,  nano-products

13. EVALUATION METHOD ON THE RESIDUAL LIFE TIME OF TECHNOLOGICAL EQUIPMENT IN PETROCHEMICAL PLANTS.  II c. CASE STUDY
RADU  I.  IATAN1, ALEXANDRU  MARIN2
1,2 University POLITEHNICA from  Bucharest, Splaiul Independenţei 313, 060042, BUCHAREST
Abstract. The paper analyses an horizontal tank, used for storing the condense obtained from the pyrolise installation and for separation of the water drops from the generated steam. The respective equipment started its functioning period 35 years ago, being effectively running the early 18 years period and being conserved during the last 17 years. The analyze viewed by present work follows the technical initial and present status of the efforts in different components of the tank, due to calculus and hydraulic experimental testing pressure. In the present study, taking into account the values for the stresses inside the components of the equipment [1], we adopted a way for evaluation the residual life time.
Keywords: residual life time, stress state

14. MECATRONIC POLIMODULAR ORTHETIC SYSTEM FOR RECOVERING THE LIMBS IMOBILITY IN PEDIATRIC ORTHOPAEDY
Eng. Ioan Lung1 , Prof. PhD. Gh. Burnei2 , Eng. Ioan Lata1, PhD. Stefan Gavriliu3, Eng. Constantin Roat4.
1National Institute of Research and Development for Mechatronics and Measurement Technique INCDMTM
Bucharest, 2UMF-CD Bucharest, ROMANIA, 3SUC-MC Bucharest, 4ICPE. Bucharest, ROMANIA
Abstract. The current kinetotherapy methods applied from the first week of life, give the impression of an apparent recuperative effect, but during the child’s growth, the vicious positions become more evident, until joint immobility is installed, the joint position becomes fix, and the limb cannot be moved to the normal position. The major cause of arthrogriposis multiplex congenita is represented by the foetal akinezy, which is due to foetal abnormalities (neurological, muscular, or conjunctive tissue abnormalities, or foetus movements mechanical limitations), and also by maternal affections (infections, trauma, drug abuse, etc.).
Keywords: kinetotherapy,  arthrogriposis, akinezy

15. LOADING SIMULATION FOR THE CONTINUOUS BEAM PLACED ON SEVEN ELASTIC PROPORTIONAL SUPPORTS
PhD. Cornel MARIN1, Alexandru MARIN2
1University “VALAHIA” Târgovişte, 2Tehnical University of Constructions Bucureşti_ROMANIA
Abstract. The continuous beams placed on N elastic supports subjected to the action of a loads convoy can be solved using the method of the step function from MATHCAD, expressing the bending moments as a function of the exterior loads and the support forces. This function facilitates the analytical expression of the bending moments as a function of the applied exterior loads (loads convoy). In the same time it is facilitated the writing of deformations conditions, the expression of support displacements as a function of the unknown reactions and the solving of the equations system for different loading cases.
Keywors: loads convoy, elastic proportional supports

16. DIFFUSION BRAZING OF A MICRO-HEAT-EXCHANGERS
Ionel Olaru 1
1Lecturer Eng. PhD. Ionel Olaru, University of Bacau, ionelo@ub.ro
Abstract. Diffusion brazing is an important joining process in the large field of micro-technology. The construction design of a micro-heat-exchanger with diffusion brazing is required in the chemistry, aerospace industry and in many more applications.
Keywords: brazing, heat exchangers, joint.

17. A MATHEMATICAL PATTERN FOR ESTABLISHMENT OF THE CUTTING WORKABILITY PROCESS APPLIED ON SOME HEAT RESISTENCE STEELS
Paul Ciprian PATIC1,  Ion Florin POPA2 Ryad ZEMOURI3
1Automatics, Informatics and Electrical Engineering Department 2Materials, Instalation Equipments and Robots Department , Valahia University of Târgovişte 3Laboratoire d’Automatique du Conservatoire Nationale des Arts et Metiers, 21, Rue Pinel, 75013 Paris, France.        E-mail: 1 patic@valahia.ro,  2 p_florin_ro@yahoo.com  3 Ryad.Zemouri@paris.ensam.fr,
Abstract. Regarding the “Cutting workability Process” concept, in the present, does not exist a complete and tolerable definition, most of the authors giving their own points of view. They have, still, a few ideas in common concerning machining (turning, or processing) definition. In general, the study of processing, includes some problems regarding the cut’s wear, the splintering forces, the ruggedness of the processing surfaces, the power wasted during the processing operations, the aspect and the size of the splinters and the dynamical stability, resulting that the processing concept depending by the material characteristics and by the parameters of the processing operation.
Keywords:  turning, processing, cutting workability

18. SOME NEW CONSIDERATIONS REGARDING THE DESIGN OF A COLUMN INDUSTRIAL ROBOT TYPE USED IN AUTOMATIC MOUNTING
Paul Ciprian PATIC1 , Ryad ZEMOURI2
1Automatics, Informatics and Electrical Engineering Department Valahia University of Târgovişte
2Laboratoire d’Automatique du Conservatoire Nationale des Arts et Metiers, 21, Rue Pinel, 75013 Paris, France
E-mail: 1 patic@valahia.ro,  2 Ryad.Zemouri@paris.ensam.fr
Abstract. The column Industrial Robots type represents a large used category, starting with the period of the beginning of automatic flexible manufacture. Preponderantly, these column industrial robots are used largely in manipulation operations of a different spares with small and medium dimensions, in general, with regulate forms, which is processed by splinting methods in flexible cells ready in star or circular way of the components.
Keywords: automatic flexible manufacture, column industrial robots

19. MATHEMATICAL METHODS FOR DESCRIPTIVE GEOMETRY
Carmen POPA, Maria MANESCU, Ivona PETRE
Valahia University of Târgovişte E-mail: pcivona@yahoo.com, manescu_maria@yahoo.com
Abstract: The aim of this paper is to establish the intersection curves between cylinders, by using the  program. This thing can be obtained by introducing the curves equations, which are inferred, in this program. This paper takes into discussion a cylinder and another inclined to 45 degrees. The intersection curves can be obtained by using the classical methods of the descriptive geometry, too.
Keywords: new methods of the descriptive geometry,  intersection curves

20. THE STUDY OF STATIC BEHAVIOR OF THE PRINCIPAL BODY OF A VALVE WITH THE FLOATING BALL, SUBDUED THE FIRE THROUGH THE METHOD OF THE ELEMENT FINIT
Tomescu Gheorghiţa1
1Eng. SC UPET SA . E-mail: gb_tomescu@yahoo.com
Abstract. Working fluid  attributes in the petrol and connected industries, determines a high fire and/or explosion risk. Fire safe valves can reduce losses in case of accidental fires, isolating the defective portions of the equipment from the rest of the installation so that other fluids don’t feed the fire. The ball valves come with metal/non-metal seal to ensure flawless closure at low pressure and normal temperature conditions and an additional metal/metal seal for high temperature sealing in case the primary one deteriorates. The fire safe characteristic is certified by testing the valves in accordance with one of the API 6FA, API 6FC, API 607 or STAS 10497:1997 standards. An evaluation of the body behavior and in particular the metallic ring area can be made using the finite element method. The study was made on the primary body of the 4 in cls 300 float ball, taking into account that the sealing is made on the downstream ring (by pressing the ball on the sealing downstream ring, due to fluid pressure). The first part of the study was made without taking into account the temperature applied on the surface of the guide mark, temperature resulting from the fire test. To evaluate static nodal stress, displacement and static strain in the presence of mechanic pressure and temperature 2 other studies  we’re performed: the 2nd study using the temperatures measured on the surface of the body right after putting out the fire and the 3rd study using the minimum temperatures required for the calorimetric cubes after 15 minutes from starting the fire (565 oC), assuming that these calorimetric cubes represent the body wall and it’s temperature. The conclusions of the study confirm the experimental results and allow improvement of the design project of these valves trough the possibility of correct choice of materials and verification of proposed technical solutions.
Keywords: fire safe valve, ball valve

21. STUDIES ON CHARACTERISTICS CURVES OF CONSUMPTION OF REDUCERS PRESSURE
Mircea VLADESCU1, Victor PETRESCU1, Veronica DESPA1 1Materials, Instalation Equipments and Robots Department , VALAHIA University of Târgovişte
E-mail: vladescumircea2006@yahoo.com, victorpetrescu2006@yahoo.com, dumiver@yahoo.com
Abstract. The paper analyses the modifications of the adjusted parameter value (the pressure p2 at the reducer outlet) depending on the values Qc of the consumed flow rate. These modifications are analyzed in three distinct areas of consumption and concrete solutions for the phenomenon to decrease in the areas I and III are suggested, the critical area in which the operating of devices performs abnormalities. In the contents of paper, the qualities, which increase or decrease the phenomena, which should arise, are also analyzed.
Keywords: reducer outlet,  adjusted parameter

22. STUDIES ON CHARACTERISTICS CURVES OF CONSUMPTION OF REDUCERS  PRESSURE Mircea VLADESCU1, Victor PETRESCU1, Veronica DESPA1 1Materials, Instalation Equipments and Robots Department , VALAHIA University of Târgovişte
E-mail: vladescumircea2006@yahoo.com, victorpetrescu2006@yahoo.com, dumiver@yahoo.com
Abstract. The paper analyses the modifications of the adjusted parameter value (the pressure p2 at the reducer outlet) depending on the values Qc of the consumed flow rate. These modifications are analysed in three distinct areas of consumption and concrete solutions for the phenomenon to decrease in the areas I and III are suggested, the critical area in which the operating of devices performs abnormalities. In the contents of paper, the qualities, which increase or decrease the phenomena, which should arise, are also analysed.
Keywords: consumed outflow, consumption system