307 articole găsite pentru „function”.
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Tratarea, prin metode alternative, a deseurilor periculoase provenite din unitatile sanitare
Ing. Anisoara Popescu
Diversele metode utilizate in mod frecvent pentru tratarea deseurilor periculoase provenite din activitatile medicale au ca scop obtinerea unui produs final prietenos mediului si sanatatii. Cea mai raspindita metoda de tratare a acestor tipuri de deseuri este…
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Tricoturi 3D cu aplicatii tehnice
Dorin Ionesi, Ramona Ciobanu, Dorin Dan, Costea Budulan
Tricoturile tridimensionale cu aplicatii tehnice reprezinta solutiile principale utilizate la obtinerea preformelor tricotate cu forme complexe. Materialele compozite tricotate ofera o gama diversa de utilizari in toate domeniile tehnice (domeniul constructii…
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Proiectarea si realizarea rapida a calapodului pentru incaltaminte cu ajutorul tehnologiei CAD/CAM
Conf. dr. ing. Aura Mihai, Mariana Pastina, Marta-Catalina Harnagea
In cadrul acestei lucrari se prezinta modul de obtinere a unui produs special adaptat unui consumator, plecindu-se de la cerintele morfo-functionale sau structurale ale piciorului. Trecerea de la dimensiunile piciorului la dimensiunile calapodului presupune o…
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ASPECTS ON THE DESIGN AND IMPLEMENTATION OF A TRACKED MINI-ROBOT WITH ELECTRIC ACTIONING OBTAINED FROM SOLAR ENERGY CAPTURE
Silviu-Mihai PETRIŞOR, Cosmin-Iulian GRIGORAŞ
The authors of this paper wish to highlight elements regarding the organology, functioning and simulation, in a real workspace, of a tracked mini-robot with electric actioning obtained from solar energy capture with a load of explosives attached a technologic…
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NEW RESEARCH ON COMPOSITE MATERIALS AT THE METAL FORMING RESEARCH CENTRE
Claudia GÎRJOB, Octavian BOLOGA, Gabriel RACZ, Cristina BIRIS
The Metal Forming Research Centre functions as separate research unit within "Lucian Blaga" University of Sibiu, Romania. This is one of the first centres of its kind in Romanian higher education system and emerged under the aegis of the European inter-univer…
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A SOCIO-ECONOMIC REGULARITY ESTABLISHED BASED ON AN ANALOGY WITH THERMODYNAMIC PROCESSES WITH FINITE SPEED - An Equation for Standard of Living -
Ioan GANEA, Adrian S. PETRESCU, Liliana TIMOFAN , Stoian PETRESCU, Monica COSTEA
This paper proposes a quantitative description of the flows of energy, mass and information in a country, based on recently developed concepts in Thermodynamics with Finite Speed. An equation for Standard of Living is derived. As shown in the ‘70 by Georgescu…
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DISCOVERY OF “QUANTUM NUMBERS” IN THE CARDIOPULMONARY INTERACTION STUDIED IN THERMODYNAMICS WITH FINITE SPEED
Stoian PETRESCU, Valeria PETRESCU , Monica COSTEA, Liliana TIMOFAN, Silvia DANES, Georgeta BOTEZ
The paper proposes an extension of Thermodynamics with Finite Speed (TFS) to Biological Systems, with Cardio-Pulmonary System study as the first objective. It is an extremely important system in the functioning of any blood beings (including humans). For stat…
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COMPARATIVE SUSTAINABLE ANTIBACTERIAL TECHNOLOGIES FOR TEXTILE APPLICATIONS
Diana COMAN, Narcisa VRÎNCEANU, Simona OANCEA, Ioan NEAGU
The present study is both a review regarding the newest methodologies of application of antibacterial agents on textile supports, natural and chemical, and an antithesis focusing on the comparison between well known antibacterial agents, ranging from syntheti…
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INCREASING SUSTAINABILITY OF THE HOUSING STOCK BY AVOIDING DAMAGE CAUSED BY THE SOIL-STRUCTURE RESONANCE
Dinu BRATOSIN
In any dynamic system, the coincidence between natural period and excitation period (the resonance) lead to extremely large dynamic amplification. For example a linear system with damping of order 25% the dynamic amplification factor has values between d…
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POSSIBLE MEASURES OF TAKING-OVER/ DYNAMIC CONTROL OF SEISMIC ACTIONS APPLICABLE TO URBAN UTILITY SYSTEMS. SEISMIC WAVES DEFLECTION/ DAMPING USING METAMATERIALS
Bogdan UNGUREANU, Gabriela M. ATANASIU, Victoria COTOROBAI
Nowadays, an accurate seismic prediction regarding the date, location and magnitude is still a challenge, thing that implies taking into consideration efficient, preventive, seismic risk management measures, not only for civil buildings but also for urban uti…
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DETERMINATION OF THE OPTIMAL MATERIAL FOR PERMANENT MAGNETS USED IN THE MANUFACTURE OF HIGHPOWER AUDIO DEVICES
Constantin D. STĂNESCU, Liliana CĂINICEANU
Crowded permanent magnets of NdFeB -type have the superior properties to those intered as shown by the magnetic circuit modeling using finite element method (FEM). Determination of the optimum material for magnetic circuit of high power audio devices is a com…
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OSCILLATIONS OF LARGE AMPLITUDE OF A RIGID SPHERE IN A VISCOUS FLUID
Sorin BERBENTE, Corneliu BERBENTE
One considers the oscillations of large amplitude of a pendulum made of a rigid sphere suspended by a cylindrical bar articulated in a fixed point. The motion is two-dimensional and takes place in in a viscous fluid of variable density, initial at rest. The s…
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SISTEMELE DE STOCARE A ENERGIEI, O SOLUŢIE PENTRU OPTIMIZAREA FUNCŢIONĂRII REŢELELOR ELECTRICE LA CARE SUNT RACORDATE SURSE REGENERABILE INTERMITENTE
Florin Teodor TĂNĂSESCU
O restricţie întâlnită în producerea de energie electrică se datorează faptului că energia electrică trebuie consumată atunci când se generează şi nu poate fi conservată decât prin stocarea ei. Sunt prezentate diversele soluţii de stocare, avantajele şi dezav…
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Dimensionarea turnurilor de racire umede in contracurent pentru regimul normal de functionare
Vlad Gabriel Dumitru,Nicolae Baran, Ioana Corina Moga, Elena Laura Moga
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AN ANALYTIC METHOD FOR TWO-PORT PASSIVE NETWORK
COMPUTING FOR ANALYSIS OF COUPLED OSCILLATORS
Mihai IORDACHE, Lucia DUMITRIU, Lucian MANDACHE, Dragos Niculae, Jean-Marie PAILLOT (Franta), David CORDEAU (Franta)
Voltage controlled oscillators are present in the most of the digital communication system. In our days, they are used to control the phase in microwave antenna arrays. Researches are made so that a particular phase shift can be obtained by choosing the fre…
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GRAPHICAL INTERFACE TO PLOT THE PHASOR DIAGRAM OF A RAILWAY SYNCHRONOUS GENERATOR
Lecturer Eng. Gabriela-Dana PETROPOL-SERB, PhD, Eng. Ion PETROPOL-SERB
Diagrama fazoriala a generatorului sincron de tractiune este larg folosita pentru a analiza comportarea acestuia in timpul functionarii, dar si ca instrument de lucru in proiectarea sa. Deoarece atat functionarea generatoarelor sincrone de tractiune cat si …
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WIND TURBINES OPERATION AND MAINTENANCE: PROBLEMS AND SOLUTIONS
Eng. Ana HAZI, Eng. Florin GHEORGHIU
In ultimii ani in Romania centralele eoliene au cunoscut o dezvoltare semnificativa, de la 10 MW la sfarsitul anului 2008, capacitatea totala de producere instalata si disponibila a energiei eoliene a ajuns la peste 1000 MW la inceputul anului 2012. O data …
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Seismicitatea regiunii seismice Banat - monitorizare, caracteristici, hazard seismic local
Eugen Oros
Lucrarea prezinta o scurta sinteza a celor mai noi rezultate obtinute in cercetarile seismologice din partea de Vest a Romaniei, bazate pe baze de date noi. Partea de Vest a Romaniei (denumita uzual Regiunea Seismica Banat, RSB) este cea mai importanta zona s…
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Operation model for a simple solar thermal installation
Ioan Luminosu, Coleta De Sabata, Aldo De Sabata
Se propune un model simplu de functionare a unei instalatii solare termice si se implementeaza ca program pe calculator. Modelul se bazeaza pe utilizarea datelor privind radiatia solara in functie de timp si spatiu si pe ecuatiile de functionare a dispozitive…
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Cateva consideratii privind folosirea realitatii virtuale in procesul de instruire specific disciplinelor de mecanica aplicata
Ionel Staretu, Cristian Dudulean
In aceasta lucrare, la inceput este argumentata necesitatea formarii profesionale pe baza de abilitati cheie formulate in Standardele de pregatire profesionala, care presupune parcurgerea unui curriculum in care cultura de specialitate cuprinde o serie de dis…