Volume 1, No. 1 (2013)

Articles

$HOSPITAL WASTEWATER TREATMENT BY MEMBRANE BIOREACTOR: PERFORMANCE AND IMPACT ON THE BIOMASSES$

M. ALRHMOUN(1), M. CASELLAS(1), C. DAGOT(1)

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$THE DETERMINATION OF THE VELOCITIES AND OF THE ACCELERATIONS OF ACTION BELONGING TO THE PARALLEL ROBOTS WITH DELTA 3 DOF STRUCTURE USING THE SOFTWARE MSC ADAMS PACKAGE$

ANDRIOAIA DRAGOS(1), STAN GHEORGHE(1)

In the last years, the advantages of the parallel structure Delta 3 DOF within the robots has determined its intensively use in the industry [1,2]. In this paper, the authors present a kinematical analysis of the parallel structure Delta 3 DOF concerning the variation of: the angular position, the angular velocity, the angular acceleration within the kinematic joints which are active in function of the movement parameters of the manipulated object using the software MSC Adams package. Using the MBS software packages determines a limitation of the time of projection and of testing of the mechanical structure type [3,4,5].

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$SYSTEM FOR TESTING AND STUDY OF DIGITAL CIRCUITS WITH MICROCONTROLLER$

MARIUS ANGHELUT(1)

In this paper we present a system allows testing and analysis of digital integrated circuits using a microcontroller in order to determine defects or functional analysis in the laboratories of university teaching. Based on input signals generated by the microcontroller, check studied logic function circuit, displaying the output status and a report on the status of the circuit.

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$MANUFACTURING PLANAR METAL-CERAMIC NONMAGNETIC MICROPACKAGES$

CORNEL ANTON(1)

The present paper refers to the manufacture of some planar metal-ceramic non magnetic micropackages for microwave application. The microwave semiconductor components mounted in planar metal-ceramic non magnetic micropackages were used on a large scale because of the advantages they have such as their own capacitances and inductances (fraction of pF and nH respectively), reduced microwave losses, very small dimensions, mechanical robustness and environment attack resistance. By the technological route the same planar metal-ceramic non magnetic micropackages have been manufactured through an original technology, direct joining by the metal-metal diffusion method.

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$A COMPARATIVE ANALISYS OF THE CONTROLLERS ON-OFF AND PI FOR THE HEATING SYSTEM OF A BUILDING$

BARACU TUDOR(1), MURESAN MARIA(1), BADEA ADRIAN(1)

Currently there is a huge variety of temperature control equipment for HVAC systems but their performances are often presented separately. For building scan be implemented different specific heating control systems but the problem is to choose the most appropriate. This study is an analysis of heating an enclosure using On-Off and PI controllers in order to determine their specificity based on the results and a comparison in terms of power and comfort.

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$ADMINISTRATION OF LASER RADIATION AND OZONIZED SOLUTIONS IN TREATMENT OF PARODONTITIS$

MIHAIL BARBUŢ(1), ALISA MOŞNEAGA(2), PETRU LOZOVANU(2)

An experimental installation to study the laser radiation on tissues has been worked out to permit the getting of radiation impulses of various frequency and the possibility to direct the fascicle on the studied surface simultaneously with the administration of ozonized liquide. In order to determine the optimal doses of ozone in liquids, we used ozonized liquids of various concentration obtained by a photochemical method. As a result of researces we established the application doses of the laser radiation concomitantly with the aerosoles flux, containing ozonized liquids in effective treatment of marginal parodontitis.

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$FAILURE RISKS INDUCED BY THE INTERCONNECTION PROCESS USED FOR SEMICONDUCTOR COMPONENTS$

BÂZU MARIUS(1), ILIAN VIRGIL EMIL(1), GĂLĂŢEANU LUCIAN(1), VÂRŞESCU DRAGOŞ(1), ILIAN LIVIU MIRCEA(2)

Typical failure mechanisms induced by the interconnection process are shown: electromigration, hillocks & voids, delamination and step coverage. Each failure mechanism is explained starting from the failure mode and going into some details about the basic phenomenon responsible for the failure. The typical failure analysis methods used for investigating each specific failure mechanism are detailed and some possible corrective actions are presented, which are aimed to diminish the failure risk by the described failure mechanisms.

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$RELIABILITY ISSUES OF EPOXY MATERIALS USED IN MICROTECHNOLOGIES$

BÂZU MARIUS(1), BĂJENESCU TITU(2)

After an introductory part about packaging in microtechnologies, the reliability issues of epoxy materials used in microtechnologies are described. The two main applications of epoxy materials in packaging of active electronic components, as moulding material and adhesive, respectively, are covered. In each case, the most appropriate reliability tests are described, including accelerated tests with environmental factors such as temperature, humidity, etc. Also, typical failure mechanisms are detailed. The rubber modified epoxy is presented as the current solution for toughening the epoxy resin.

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$HARDNESS OF DIAMOND FILMS DEPOSITED ON WC-CO: APPLICATION OF MONOLAYERS MODELS$

YOUNES BENARIOUA(1), JACKY LESAGE(2), DIDIER CHICOT(2)

Diamond coatings present extremely high hardness, good wear resistance and chemical inertness. Because of these excellent technological properties, diamond films are of interest for a large variety of applications. This study is to determine the absolute hardness of the diamond films. A series of classical Vickers indentation at several loads were applied at the surface of the specimen. The determination of the hardness of a thin diamond films necessitates the use of models for separating the influence of the substrate into the measurement.

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$TREATMENT OF LEACHING RESIDUES FROM ZINC BY GOETHITE PROCESS$

YOUNES BENARIOUA(1)

This work is to study the recovery of zinc from leaching residues zinc. Among the several process used for the dissolution of zinc belongs to the residues, we have retained the goethite method which presented some advantages. The sulfuric acid concentration, temperature and time of heating residues are those parameters. These last factors can be optimized in this study.

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$SIMULATION OF A HYBRID SOLAR-WIND-DIESEL SYSTEM$

BUZDUGA STEFANIA ROXANA(1)

The hybrid system of energy production in its general view is one that combines easily mobilized and operates several sources. It is the combination of two or more complementary technologies to increase energy supplies by better availability. Sources of energy like the sun and the wind does not deliver constant power, and their combination can help to achieve a more continuous power generation. The work presented in this article was carried out in the laboratory Research Group in Electrical Engineering and Automation of Le Havre, University of Le Havre (GREAH) in the research project "PV-wind system of production of electrical energy" funded by the AUF Bucharest. We chose to study a photovoltaic-wind-diesel hybrid system. In the study were treated two aspects: the configuration and design of SEH. The HOMER software was used to size the SEH studied in this work.

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$IMPROVEMENT OF THE CONTRIBUTION OF AGRIBUSINESS IN RESPECT OF „GOOD STATUS” FOR WATER BODIES OF THE MASSIF CENTRAL$

CONDAT MARIE-LINE(2), CHATEAU LUDIVINE1, PROROT AUDREY(2), DEVILLERS PIERRE HENRY(1)

The objective of the study „improvement of the contribution of agribusiness in respect of good status for water bodies of the Massif Central” is to provide some control on the environmental impacts of business food chains "Meat" and "Milk". A sample of 18 companies, voluntarily heterogeneous to cover up cases, has been formed to study their impact on the water body. The modelling tool applied is the pression -impact model PEGASE. The results have highlighted the vulnerability of water bodies to nitrogen and phosphorus pollution. The flow of the water body and the collective treatment plant has also a major role in the impact. Above all, this program illustrates the specificity of each pair "firm -water body “and therefore the need for companies to conduct a project approach that should define a solution "tailored" to treat effluents. A guide was written to help companies to apply the project approach to defining a solution effluent management, and to make an effective and long-term investment.

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$SOFTWARE TO BUILD A MARKINGS GRAPH FOR A PETRI NET MODEL$

CULEA GEORGE(1)

An analysis by Petri network models involves the determination of their properties. Network properties can be extracted easily from the graph markings. This article presents an application for generate the markings graph. The software to build the markings graph highlights all the markings available, possible bottlenecks and identifies key properties of the simulated model. The application allows you to save the introduce models and the simulation results - graph markings. This software is for generalized Petri nets including inhibitors arcs or inhibitor threshold arcs.

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$STUDY BY DYNAMIC LIGHT SCATTERING OF CONCENTRATED COLLOIDAL SUSPENSIONS UNDER STRESS$

DANGLADE CYRIL(1), BIENIA MARGUERITE(1), LECOMTE ANDRE(1), PAGNOUX CECILE(1)

Dynamic light scattering (DLS) is an experimental method to access static or dynamic physical parameters of suspensions colloidal systems relevant to micron scales. This technique has the advantage of being non-invasive. An experimental setup was developed to study flow constraints through light scattering of concentrated colloidal suspensions under shear stress-related flows. The combination of rheological measurements and light scattering, gives results that provide a better understanding of the phenomena present in the shaping.

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$GREENHOUSE GAS BUDGET, A SOCIAL RESPONSIBILITY BUT ABOVE ALL A TOOL OF STRUCTURE DIAGNOSTIC$

DAVY EMILIE(1), PEZERON VIRGINE(1), SUARD ELODIE(1), SOLANS RAFAEL(2), NICOLAU RUDY(3)

The reality of climate change, as well as the influence of human activity on this phenomenon is well identified. The growing awareness of all is essential. Each structure owes it to future generations to identify its impact and act accordingly. In this context, the GHG budget is an indispensable tool, and it had not only an ecological interest. We will see in this work, through the example of the budget of an engineering school, economic and political interests that it can take.

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$THE RED MUD AS A NEW RAW MATERIAL$

FAZAKAS JÓZSEF1, NÉMET ENIKŐ2, FAZAKAS ENIKŐ2, TUROCZY ZSUZSANNA(3)

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$USING LOWER BOUNDS IN BDD OPTIMIZATION$

FURDU IULIAN(1)

Binary Decision Diagrams are the state of the art data structures for boolean functions manipulation. They are particularly used in VLSI design, symbolic model checking of digital circuits, in analysis of sequential systems, as well as in many other problems. Due to their strong dependence in size upon the chosen variable order, one of the most important problem in the use of the Binary Decision Diagrams is to construct good orders to minimize (i.e. optimize) their size. This paper presents recent advances in using lower bounds in Binary Decision Diagrams Optimization.

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$ADAPTATION OF MICROWAVE PECVD PLASMA TORCH AT ATMOSPHERIC PRESSURE FOR THIN TITANIUM OXIDE FILMS SYNTHESIS$

YOAN GAZAL(1), CHRISTELLE DUBLANCHE-TIXIER(1), CHRISTOPHE CHAZELAS(1), PASCAL TRISTANT(1)

Titanium oxide films are of great interest both for the photocatalytic activity of this semiconductor and its remarkable electrical and optical properties. Plasma Enhanced Chemical Vapour Deposition (PECVD) processes are widely used to deposit such materials into thin films. However, because traditional PECVD processes require expansive vacuum systems and pumps, there has been a growing interest in the last decades to replace them by atmospheric pressure systems. The purpose of this work is the adaptation of our atmospheric pressure - PECVD process (axial injection torch) for the deposition of titanium oxide thin films, using titanium tetraisopropoxide as Ti precursor.

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$SUBSTRATE INTEGRATED WAVEGUIDE BAND-PASS FILTER FED BY A NOVEL BROADBAND TRANSITION TO CPW$

GIANGU IOANA(1), BUICULESCU VALENTIN(1)

The paper presents a band-pass filter (BPF) intended for substrate integrated waveguide (SIW) applications, supplied with a novel broadband transition from SIW to miniature coaxial connectors through an intermediate coplanar(CPW) transmission line. The band-pass filter uses inductive diaphragms defined by rows of metal plated via holes of equal diameters. Simulated characteristics are in excellent agreement with experimental results, although BPF simulations were performed with standard waveguide ports while the manufactured component is provided with the novel CPW transition on both ports.

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$SOME CONSIDERATIONS ABOUT MODELING THE HEAT TRANSFER IN A ROOM USING THE FINITE ELEMENT METHOD$

GRIGORE ROXANA(1), OSTAHIE NARCIS(1)

The paper presents a simulation of heat transfer through a room, based on the 3D model of the room. The room is heated by a steel radiator, sized in order to ensure a temperature of 20oC in the enclosure. Numerical simulation using the Comsol Multiphysics program proves very important tool for the study of heat transfer in room, but the modelling of spatial thermal field for an entire building is very difficult and resource intensive.

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$POWER TRANSFORMER IN SUBSTATIONS - HEAT SOURCE$

ANETA HAZI(1), GHEORGHE HAZI(1), SORIN-GABRIEL VERNICA(1)

In this paper is presented an algorithm for the evaluation of heat recovered from insulating oil of power transformers in substations. It take account of the heat taken from the core oil and transformer windings and heat loss through the tank walls to the environment. Finally, a numerical example is presented for a 40 MVA transformer.

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$ABOUT SELECTIVITY OF NUMERICAL PROTECTIONS AGAINST EARTH FAULTS IN MEDIUM VOLTAGE NETWORKS GROUNDED WITH PETERSEN COIL$

GHEORGHE HAZI(1), ANETA HAZI(1), SORIN-GABRIEL VERNICA(1)

The paper analyzes the conditions for the functioning of basic numerical protection earth fault in medium voltage networks with earthed neutral Petersen coil. Analysis refers to the number of cell terminals and not to the protection at level of medium voltage substation. Selectivity conditions are presented. It is shown how a ABB numerical protection can be set to run selective. All analyzes are based on a concrete example, using a network of 20 kV with cable lines.

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$CALCULATION OF FAULT CURRENTS IN POWER DISTRIBUTION NETWORKS GROUNDED WITH PETERSEN COIL$

GHEORGHE HAZI(1), ANETA HAZI(1), SORIN-GABRIEL VERNICA(1)

The paper presents a methodology for more precise determination of earth currents in networks grounded with Petersen coil. This calculation is necessary to establish the directional zero sequence overcurrent relay settings, which are sensitive to these types of faults. Is present the voltage and current determination at the fault place and at the protection installing place. All analyzes are based on a concrete example, using a power distribution networks of 20 kV cable lines.

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$INTEGRATED MANAGEMENT AND SUSTAINABLE WASTE KINSHASA AND MANAGEMENT OF URBAN SPACE$

HOLENU MANGENDA HOLY(1)(2), VALENTIN NEDEFF(2), NARCIS BARSAN(2), KAKESE KUNYIMA C.(1)

Rapid urbanization and uncontrolled Kinshasa caused the deterioration of the environment. One of the most worrying consequences lies in waste management. Just cross the city of Kinshasa to see manifestations of this problem: accumulation of waste along roads, streams and drains blocked landfills in public places. In the city of Kinshasa, is produced 5600 m3 of waste per day or 1,881,600 m3 per year. Waste produced by a population estimated at 10 million people, with an area of the city of 9965 km2. These data demonstrate the urgency of ensuring adequate management services, which are typically not found in this city. In Kinshasa, the removal of waste is only assured in some residential areas. In the rest of the city, the waste is present on the road or in illegal sites, or are discharged into drains or buried in ravines open regardless of environmental standards.

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$EXPERIMENTAL DOSIMETRY TECHNIQUES FOR EXPOSINGCELLS TO HIGH-INTENSITY NANOSECOND PULSED ELECTRIC FIELDS$

KOHLER SOPHIE(1), O’CONNOR RODNEY P. (1), ARNAUD-CORMOS DELIA(1), LEVEQUE PHILIPPE(1)

Exposure systems have been reported to deliver high-intensity nanosecond pulsed electric fields to biological cells and simultaneously observes the induced biological effects. However, there is a lack of measurement techniques for characterizing the macroscopic electric field and microscopic temperature changes induced inside the exposed sample. In this paper, we present dosimetry measurements at macroscopic and microscopic scales inside a Petri dish containing biological cells and exposed to nanosecond electrical stimuli within a transverse electromagnetic cell.

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$TUNABLE ELECTROMAGNETIC BIOSENSORS APPLICATED TO CELLULAR ANALYSIS$

A. LANDOULSI(1), L.Y ZHANG1, A. LACROIX(2), C. BOUNAIX MORAND DU PUCH(3), C. DALMAY(1), A. POTHIER(1), A. BESSAUDOU(1), C. LAUTRETTE (3), S.BATTU(2), F. LALLOUE(2), M.O JAUBERTEAU(2) ET P. BLONDY(1)

The interest of using of microwave in the biomedical field is growing since few years, especially for application dedicated to cellular analysis. Indeed, due to its size and cytoplasm content, a biological cell can be considered as a micrometric dielectric particle. Probing this cell thanks to microwave signal can allow to access to data on its biological and physical content. This paper illustrates the interaction capabilities of microwave with cell cytoplasm in order to extract their intrinsic dielectric properties. In this objective, some tunable resonant frequency biosensors have been designed in order to characterize cancer cells.

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$HYDROGENATED AMORPHOUS CARBON (a-C:H) THIN FILMS DOPED WITH FLUORINE ATOMS: CORRELATION BETWEEN COMPOSITION AND MECHANICAL PROPERTIES$

J. P. LAVOUTE(1 2), L. KILMAN(1 2), C. JAOUL(1), P. TRISTANT(1), C. DUBLANCHE-TIXIER(1), M. COLAS(1), E. LABORDE(1), F. MEUNIER(2), O. JARRY(3)

The objective of this study is to increase the wear resistance of hydrogenated amorphous carbon (a-C:H) thin films obtained by PECVD in an industrial reactor. A way of improvement is to incorporate dopants such as fluorine to reduce the coefficient of friction. The physico-chemical properties of various coatings doped with fluorine atoms are studied and special attention was paid to their mechanical properties and their structures.

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$STUDY OF THE METAL-INSULATOR TRANSITION IN VANADIUM DIOXIDE FROM DC TO THZ FREQUENCIES$

LEROY JONATHAN(1), MADRANGEAS VALÉRIE(1), CRUNTEANU AURELIAN(1), HUMBERT GEORGES(1), PASSERIEUX DAMIEN(1), ORLIANGES JEAN-CHRISTOPHE(2), CHAMPEAUX CORINNE(2), BLONDY PIERRE(1)

We present the specific characteristics (amplitude, hysteresis cycle) of the temperature activated metal- insulator transition (MIT) of vanadium dioxide thin films. We performed this study at different frequency domains (from DC to terahertz) in order to better understanding the properties of this transition, relevant for developing novel devices and applications for low- and high-frequency electronics.

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$TEST STAND FOR SUPPLYING AN ELECTROMAGNETIC VIBRATOR PUMPS AND ELECTRIC LAMPS$

LIVINTI PETRU(1), GHANDOUR MAZEN(2)

The development of renewable energy has been a subject of increasingly important in the 21st century with the growing problem of global warming and other environmental problems. Photovoltaic solar energy is the direct conversion of a portion of solar radiation into electrical energy. In this paper we present a photovoltaic system consists of two solar panels connected in parallel to the production of electrical energy. The test stand with solar panels was built in the laboratory of electrical machinery "Vasile Alecsandri" University of Bacau. The experimental results were consistent with the photovoltaic system project.

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$A STUDY OF PHYSICAL FACTORS ACTION IN STIMULATION OF AGRICULTURAL PLANTS DEVELOPMENT AND ITS ECONOMICAL EFFICIEINCY$

PETRU LOZOVANU(1), ALISA MOȘNEAGA(1), DAN LOZOVANU(2), LILIA STOLEAR(2)

The work describes the results of researches dealing with the processing of agricultural plants seeds with laser radiation ( λ = 532 nm and λ = 632 nm ) supplied with water, which was exposed tove action of different physical factors. There where established the conditions to stimulate the growth of plants at the initial stage. It is also presented the experimental installation and the method of processing of the seeds by scanning in a dynamic conditions the method of processing the seeds in magnetic field, the method of activation of water with laser radiation and it was estimated the obtained economical effect at energetically activation of agricultural seeds.

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$DEMONSTRATION THROUGH JUDGMENTS AND REASONINGS$

LUPU COSTICĂ(1)

The article provides a conceptual frame and methodological references required by the initial training of teachers of Mathematics. This paper appeals to students training to become teachers of Mathematics, those attending master’s programmes, those who are at the beginning of their careers or who are preparing to sit in for the specific exams. Acquiring knowledge by means of the demonstration through judgments and reasoning enables the development of thought acts, flexibility, while the application of heuristic learning strategies facilitates guidance in problematic situations, the activity with students, establishing and transferring the educational process from object to subject. The systematic application of the demonstration through judgments and reasoning of mathematical contents in the teaching process ensures not only a correct system of acquiring mathematical concepts, but also a system of thought operations.

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$NON-DESTRUCTIVE THIN FILM MATERIAL CHARACTERIZATION USING KLYSTRON CAVITY$

VALERIE MADRANGEAS(1), DOMINIQUE CROS(1), MICHEL AUBOURG(1), DAMIEN PASSERIEUX(1), JEAN-MICHEL LE FLOCH(2), YAOHUI FAN(2), MICHAEL EDMUND TOBAR(2)

This paper presents two specific methods to determine the high frequency dielectric properties of deposited thin films on substrates. One uses two dielectric resonators facing each other inside a cylindrical cavity and the other method is based on the use of Klystron cavities. While introducing one sample at the time into the resonant cavity, we measured shifts from the two-mode resonance frequencies and their associated unloaded quality factors. These latter allow retrieving the permittivity and loss tangent of the sample under test by using rigorous electromagnetic simulation software.

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$VICINAL SURFACES OF SAPPHIRE STUDIED BY GRAZING INCIDENCE SMALL ANGLE X-RAYS SCATTERING (GISAXS)$

MATRINGE CAROLINE(1), THUNE ELSA(1), BABONNEAU DAVID(2), FAKIH AHMAD(1), GUINEBRETIERE RENE(1)

Vicinal surfaces used as templates are an interesting way to organize systems at a nanometric scale. In this study, the surface morphology was characterized with grazing incidence small angle x-rays scattering method (GISAXS). We showed that a diffract meter with a goniometric sample holder associated with a scattering bench allows to measure precisely the evolution of the scattering signal as a function of the azimuth angle and thus to follow the surface ordering.

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$FEASIBILITY ANALYSIS FOR THE FULL - SCALE IMPLEMENTATION OF THE ELECTRIC VEHICLE: A STUDY IN PROGRESS FOR THE USA$

FLORIAN MISOC(1), MARIAN GOSAV(2), CRISTIAN MUNTEANU(3), MIHAI PUIU-BERIZINTU(4)

In this paper the electric vehicle implementation and is feasibility is studied, as a substitute for the internal combustion-powered vehicles, in the near future. This study is based solely on the official data, publicly available, and considers the best-case scenario, as well as the worst-case scenario for implementation of 100% electric vehicles as the only mode of transportation. The predicted electric power demand is factored in, based on national statistics and demographic trends, as the comparative study explores the possible changes in the transportation industry, based on current state of the art technology. The authors refrain to make any predictions or prognosis vis-à-vis economic impact based solely on the conclusions expressed in this paper.

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$SYNTHESIS OF LATEX PARTICLES DECORATED BY SILICA NANOPARTICLES$

MONEGIER DU SORBIER QUITTERIE(1), AIMABLE ANNE(1), PAGNOUX CECILE(1)

The elaboration of polystyrene latex particles decorated by silica nanoparticles is realized through an emulsion polymerization process. The aim is to study the influence of some parameters such as the initial composition, reactants nature, or the way to insert reactants in the reaction medium, and observe the effects on the created hybrid particles. Therefore, adding the monomer continuously allows a smaller particle size distribution. The selection of the amphiphilic compound has an influence on the affinity of the particle surface. The choice of the initiator is also important to get decorated latex particles.

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$INFLUENCE OF CARBON NANOCLUSTERS ON THE PROPERTIES OF COMPOSITE MATERIALS$

ALISA MOȘNEAGA(1), ANA CIUBARA(1), PETRU LOZOVANU(1), VASILE SECRIERU(1)

The work presents the results of researches concerning the elaboration of technology in preparation of composite of porous materials with carbon nanoclusters by decomposition of graphite in the arch of Volta. For the materials based on clay, it is studied the dependence of porosity and the size of porouses of the concentration of carbon nanoclusters. Experimental results where analyzed and the specific features highlighted which are peculiar to elaborate experimental devices.

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$THE STUDY OF FLUID JETS USED IN ENERGETIC APPLICATIONS$

NEDELCU DRAGOŞ-IULIAN(1), FLORESCU IULIAN(1)

The paper aims a theoretical and experimental analysis of the main parameters of fluid jets, since their applicability at large-scale in energetic applications. The theoretical analysis is confined to a computational simulation for the impulse force of the fluid jets, using the Fluent 6.3 software, having as inputs parameters, the dates collected from the experimental analysis.

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$IMPACT ANALYSIS OF DISTRIBUTION GENERATION ONMESH AND RADIAL DISTRIBUTION NETWORK. OVERVIEW AND STATE OF THE ART$

NICHITA CRISTIAN, AL AMERI AHMED, BRAYIMA DAKYO

Market and electricity companies are interested to reduce costs by increasing penetration level of DG's in utility systems with best integration and developing measurements. Mesh and Radialdistribution systems have different structures which change the capability of the network to support the level penetration of Distribution Generation (DG). The capability of the classical network to support the level penetration of Distribution Generation (DG) could be changed according different structures of distribution systems (Mesh and Radial systems). An overview of impact of DG on these different structures with different voltage levels is presented with respect to different issues like power losses, voltage profile, protection, reconfiguration, load balance,reliability, planning and cost. Review of recent researches on these subjects has been present to analysis how to achieve a better integration of flexible demand with Distributed Generation. This would lead to an increase of the use of Distributed Generation and a decrease of problems caused by intermittent distributed generation in electricity systems and at the electricity market. Based on this analysis, weemphasized thatdistribution topologieshave different impact depending on size and type of DG as well as penetration level of it.

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$THE ELECTROMAGNETISM IN THE THEORY OF THE LAGRANGIAN NONHOLONOMIC MECHANICAL SYSTEM$

VALER NIMINET(1)

One considers a Lagrangian nonholonomic mechanical system, whose the evolution equations are (1.7). One associates to system a canonical semispray on the phase space TM, which has the integral curves given by the evolution equations of . This paper presents h- and v- electromagnetics tensors and the exterior differential of 2-form.

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$ELECTROHYDRODYNAMIC PUMP FOR COOLING ELECTRONIC COMPONENTS$

OSTAHIE NARCIS(1)

This paper deals with the problem of electrohydrodynamic pumping of cooling liquids. The main objective is to analyze the mass transfer in an electrohydrodynamic pumping process, determining the efficiency of this method to be use as cooling of electronic components.

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$THERMODYNAMICS OF SOLID CARBON NITRIDES$

STEFAN PERIŞANU(1)

No experimental thermodynamic data are available at the moment for the solid C3N4. Theoretical calculations suggest that β-C3N4 could have a bulk modulus comparable to that of diamond. Its cohesive energy can be obtained either from ab initio quantum calculations or starting from bond enthalpies derived from data for organic compounds. The entropy and heat capacity of the material can be obtained by means of the Debye statistical theory. It is estimated that pressures of the order of tens or even hundreds of GPa are needed in order to obtain the higher energy cubic β phase instead of other lower energy polymorphs.

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$INNOVATIVE ELECTROMAGNETIC MICROWAVE RADIATION SYSTEM TO ERADICATE INVASIVE INSECTS - APPLICATION TO THE ASIAN HORNET$

NICOLAS PICARD(1), SERGE MAZEN(1), BRUNO BEILLARD(1), JOËL ANDRIEU(1), EDSON MARTINOD(1)

Appeared since less than a decade, the Asian hornet invaded the Western Europe and has a direct impact on biodiversity as it contributes to the colony collapse disorder. The approach presented consists in a system of eradication based on their thermal weakness. As chemical pesticides and insecticides are prohibited in Europe, the method presented here, using electromagnetic microwave radiation is original and orientated to be environmental friendly and in favor of sustainable development.

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$FIXING A BROKEN MÖBIUS STRIPE USING SCILAB$

POPA DAN(1)

In this paper the author is describing how the parametric equations of the stripe of Möbius could found in a book by Octav Cira from the Univ. of Arad, had been fixed using a quick visual investigation of the plots produced by a Scilab program. Why? Simply, because Octav Cira's stripe had two faces instead of one.

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$APPLICATION IN VISUAL C # FOR CALCULATING SUBNETWORKS IP$

POPA SORIN EUGEN(1), PUIU PETRU GABRIEL(1)

This paper presents an application that allows you to calculate the main parameters that define an IP address based on the host's IP address and his subnet mask. Computed parameters are: network address or subnet of which the IP address, the number of bits borrowed, the number of subnets created, the number of hosts in each subnet, broadcast address and list all subnets created. These parameters are calculated taking into account both class division and using the CIDR. Application also converts the decimal IP address value in binary, integer and hexadecimal.

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$FLASH APPLICATION USED IN ON-LINE EDUCATION PROCESS$

POPA SORIN EUGEN(1), PUIU PETRU GABRIEL(1)

This paper presents the work of creating a support online course using Adobe Flash technology and Action Script 3. The application created uses several techniques of presenting educational material, namely: plain text, like power point presentation, making videos with Camtasia Studio application. For checking the knoledge acquired by students, we used two sets of tests. The first is a fixed set of tests, the questions with a single correct answer, multiple correct answers with text input with choosing an image and using drag and drop. The second set of tests is to display random questions taken from a xml file. The result of work is a very useful educational environment through: the small size of the written code, by the portability and the ease of maintenance and updating. Portability is assured by the flash technology that by the flash player which is available for free on almost any operating system, allows use material support developed on almost any computer.

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$PROGRAM LOCK SITES$

POPA SORIN EUGEN(1), PAVEL DANIEL GHEORGHE(1)

This paper presents a useful application to protect computer security by blocking access to certain websites by entering its name in the hosts file. The application allows performing the following operations: check / change read-only attribute of the file hosts, adding to the hosts file of the URL you want to block, hosts file contents displayed, change it and overwrite the modified file.

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$IMAGE RECOGNITION USING PARALLEL FEATURE EXTRACTION AND 2D FOURIER TRANSFORM$

POPESCU CORNEL(1), CULEA GEORGE(2)

This paper presents an efficient algorithm for matching images. It is part of a bigger, ongoing research, which aims a full facial recognition system. The main goals of this project are the use of deterministic methods to obtain the solution. The present algorithm can provide an alternative to the legacy sum-of-absolute-differences (SAD) based methods used in the motion picture processing industry.

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$MONITORING AND CONTROL THE GEOGRAPHICALLY DISTRIBUTED SPACES AND EQUIPMENTS USING PIC18 MICROCONTROLLER$

PRUTEANU EUSEBIU(1), MURARIU DAN(2)

Why monitoring ? We can solve technical problems more efficient by collecting and processing distributed informations. We can collect different parameters: tempertature, voltage 220V and 48V, different contact alarms, by means of PIC18 microcontroller based card (PIC PLC4 V6). We can monitor and control, via internet / intranet network, many points, equipped with PIC18 microcontroller based cards. Microcontrollers can make some local decisions autonomously. One important conclusion is that microcontrollers could cooperate, like agents, to make together some decisions.

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$AN ANALYSIS OF TRANSPORTATION TRANSITION TO ELECTRIC VEHICLES IN ROMANIA AND ITS IMPACT ON THE NATIONAL ELECTRIC GRID$

MIHAI PUIU-BERIZINTU(1), FLORIAN MISOC(2)

In this paper, a large-scale implementation of electric vehicles in Romania is studied, considering that half of all road vehicles form the total fleet would be converted by the year 2030. This study is focused on the installed power growth and the increase of vehicles’ number in Romania, for a time frame of ten years: 2002 - 2011. Based on this analysis, it is estimated the power consumption of the electric vehicles that would replace the internal combustion-based existing vehicles.

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$THE STUDY OF THE EXPERIMENTAL ADJUSTMENT CRITERIA FOR THE REGULATORS FUNCTIONING$

PUIU PETRU GABRIEL(1), SORIN EUGEN POPA(1), FURDU IULIAN(1)

This paper aims to study the criteria which allow the experimental adjustment of the regulator for a plant and to compare the results obtained after applying different criteria.

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$THE STUDY OF THE ADJUSTMENT CRITERIA FOR THE REGULATORS BASED ON THE TRANSFER FUNCTION OF A TECHNOLOGICAL PLANT$

PUIU PETRU GABRIEL(1), SORIN EUGEN POPA(1)

This paper aims to study the criteria which allow the adjustment of the regulator for a plant based on the transfer function of a technological plant.

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$FPGA BASED FUZZY LOGIC CONTROLLER$

ROTAR DAN(1)

The paper presents an original method of creating a digital fuzzy controller. The acquisition of input parameters is made by a microcontroller MSP 430F2122. The input signals control the width-modulated signals that are applied to the input of the fuzzy controller. In this way, it improves the speed by increasing parallelism. Fuzzy controller is implemented on a programmable logic array. This paper analyzes the case study used to validate the solution.

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$MONITORING SYSTEM OF THE ENVIRONMENTAL PARAMETERS THROUGH THE INTERNET$

ROTAR DAN(1)

This paper presents a system for monitoring the environmental parameters with local storage of data in a database and sending data remotely via Internet. The system allows remote transmission of orders via files sent to an Internet server. The system is realized by means of two microsystems with distributed load. The two microsystems are provided with a guard clocks mechanism to ensure the safe operation in time.

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$MICROWAVES-BACTERIA INTERACTIONS: STRUCTURE AND BEHAVIOR MODIFICATIONS OF ESCHERICHIA COLI EXPOSED TO MICROWAVES (2.45 GHZ) UNDER ATHERMAL CONDITIONS$

ROUGIER CAROLE, PROROT AUDREY(1), ARNAUD CORMOS DELIA(2), LEVEQUE PHILIPPE(2), LEPRAT PATRICK(1)

The influence of 2.45 GHz discontinuous microwave (DW) irradiation has been studied on Escherichia coli membrane under exposure conditions leading to an average cell suspension temperature of 37°C. The results showed that cell membrane integrity was slightly altered when cell suspensions were submitted to powers ranging from 400 to 2000W. However this modification of membrane permeability seems to be transient. This study shows the importance of the characterization of exposure systems and the need to combine experimental and numerical dosimetry to study the interactions between microwaves and biological systems.

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$ELECTRICAL, MECHANICAL AND THERMAL INTERACTIONS OF COMPLEX GAS-LIQUID SYSTEMS WITH THE FIELDS OF EXTERNAL FORCES$

SAJIN TUDOR(1)

The behavior and properties of the gas-liquid systems in a field of external forces have been studied. There were also examined the fluid dynamics, the relative speed and the friction factor, highlighting the main interactions between applied force fields and the gas-liquid systems.

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$INTENSIFICATION OF HEAT AND MASS TRANSFER BY THE ACTION OF EXTERNAL ELECTRIC FIELDS$

SAJIN TUDOR(1)

This paper concerns the design of electro-hydrodynamic column for the intensification of mixed heat and mass transfer under the action of external electric fields.

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$TECHNOLOGY FOR ELECTRO-PHYSICAL AND PHYSICAL-CHEMICAL PREPARATION AND BURNING OF FUEL-OXIDANT MIXTURE WITH LOW ATMOSPHERIC POLLUTANTS PRODUCTION$

SAJIN TUDOR(1)

This paper covers the development of a new technology for combustible gases burning based on the formation of fuel-oxidant mixture in an electric fields with prior separation in microporous materials (zeolites, pseudozeolites, clays, etc.) of nitrogen from the air used as oxidant.

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$CHARACTERIZATION OF A TEM CELL-BASED SETUP FOR THE EXPOSURE OF BIOLOGICAL CELL SUSPENSIONS TO HIGH-INTENSITY NANOSECOND PULSED ELECTRIC FIELDS (nsPEF)$

SOUEID MALAK(1), KOHLER SOPHIE(1), O’CONNOR RODNEY P.(1), LEVEQUE PHILIPPE(1), ARNAUD-CORMOS DELIA(1)

Cellular and intracellular structures of biological cells can be disturbed by exposure to nanosecond pulses electric field (nsPEF). The exposure system comprises two main parts: the pulses generator and the delivery device that containing biological medium. In this paper, we propose and characterize an open Transverse ElectroMagnetic (TEM) cell to expose a Petri dish filled with a biological suspension to nanosecond high voltage pulsed electric fields. Measurements of the reflection (S11) and transmission (S21) parameters show that empty TEM cell has a bandwidth of 2.9 GHz, whereas when the Petri dish is filled bandwidth is 1.7 GHz. TEM cell is well suited to deliver ultra-short pulsed electric fields with 1 ns duration.

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$EFFECTIVENESS OF METHODS FOR MEMBRANE EFFLUENT TREATMENT HOSPITAL ON THE DECREASE OF ANTIBIOTIC$

THIBAULT STALDER(1 2), MARGAUX GASCHET(2), OLIVIER BARRAUD(2), MAGALI CASELLAS(1), MARIE-CECILE PLOY(2), CHRISTOPHE DAGOT(1)

The treatment of hospital wastewater prior to connection to the sewerage system is increasingly considered to limit the introduction of pharmaceutical compounds and antibiotic-resistant bacteria. The objective of this study was to determine the effectiveness of membrane biological treatment processes for the removal of antibiotic-resistant bacteria in hospital effluents. Why biomarkers of antibiotic resistance integrons resistance (IR), were followed. This study showed that the biological membrane processes based on ultrafiltration can complete good removal efficiencies of IR., This is not the case for treatment by microfiltration.

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$THE INFLUENCE OF PARTICLE SIZEOF CLAY FOR RECYCLING OF SEWAGE SLUDGE IN A CERAMIC MATRIX$

ANNA-MÁRIA SZŐKE(1)

The feasibility of recycling sewage for the manufacture of ceramic sludge was evaluated by laboratory tests. These residues have similar chemical and mineralogical composition of the crude mixture of ceramic materials used in construction. The percentage increase for adding waste button changes the granulation and capacity synthérisation ceramic masses. Was studied the influence of granulation of raw materials - clay Bodoc button and treatment - on the properties of ceramic materials. The ceramic properties, especially porosity and mechanical properties, as a proportion of 7.00 to 20.00% of sewage sludge have small changes.

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$BIODEGRADATION OF LDPE/PLA BLENDS IN ACTIVATED SLUDGE$

SOUAD DJELLALI(1), TAHAR SADOUN(2), NACEREDDINE HADDAOUI(1)

In order to evaluate the biodegradability of blends of polyethylene and poly (lactic acid), several formulations (LDPE/PLA) were subjected to the action of microorganisms containing in an activated sludge obtained from wastewater treatment plant. The biodegradability of the different mixtures was estimated by monitoring the variation of mass, variation of mechanical properties (tensile, microhardness) and change in the structure. After an exposure period of 13 weeks, the results show that blends LDPE/PLA exhibit a greater susceptibility to biodegradation than homopolymers.

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$ON THE VARIABLE HOPPING RANGE CONDUCTIVITY IN ZnO DOPED SYSTEMS$

TITUS SANDU(1), RODICA PLUGARU(1), NECULAI PLUGARU(2)

At low temperatures materials like semiconductors with impurities and/or defects show a Variable Range Hopping (VRH) conduction mechanism. This mechanism is important in wide-bandgap semiconductors which are technologically relevant in transparent electronics. In this paper we analyze the VRH conduction mechanism in Al doped ZnO. Our study is based on ab-initio electronic structure calculations. A careful analysis of the effect of carrier concentration illustrates that for a doping below 2 % the VRH mechanism is dominant in Al doped ZnO. Our results are in agreement with experimental data on growth and characterization of Al doped ZnO films.

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$THE USE OF ONTOLOGY IN MPI-BASED GRIDS$

VÂRLAN SIMONA ELENA(1)

This paper aims to presents the utility of using ontology in MPI-based grids. We will make a short presentation about MPI, Semantic Web in general, ontology, and we will illustrate trough example, the utility of using ontology in parallel programming using MPI standard.

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$EXPERIMENTAL DETERMINATION OF STATIC CHARACTERISTICS OF THE RESISTIVE AND LIGHTING LOADS$

VERNICA SORIN-GABRIEL(1), HAZI GHEORGHE(1), HAZI ANETA(1)

This paper presents the experimental results obtained in determining the static characteristics for some categories of electric loads. We present the working methodology, the experimental plants used and the obtained results. Experimental data processing, in order to obtain the static characteristics of loads is based on the least squares method. It insists on static characteristics of the active loads in function of operating voltage for resistive receivers and for lighting equipments. It presents the obtained characteristics by measurements and by estimated curves.

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