242 articole găsite pentru „power”.
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ELECTRIC TRACTION SUBSTATIONS STUDY OF RAILWAY
Valentin IEREMIE, Radu-Dumitru PENTUC, Cezar-Dumitru POPA, Florin BERNEA
Studiul substatiilor electrice de tractiune in contextul actual este deosebit de important, prin specificul traficului feroviar, care in ultima perioada a cunoscut o semnificativa reducere. Productia de marfuri industriale s-a diminuat mult in ultimi ani. T…
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ISSUES OF LOAD FORECAST AND CONSUMPTION PROFFILING PROCESS IN ELECTRICITY REPARTITION AND DISTRIBUTION SYSTEMS
Bogdan NEAGU, Gheorghe GEORGESCU
Prin intermediul sistemelor de repartitie si distributie a energiei electrice (SRDE) sunt alimentati un numar mare de consumatori casnici si tertiari, iar in vederea proiectarii si exploatarii rationale a respectivelor instalatii trebuie cunoscute, cat mai e…
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EXPERIMENTAL STUDIES ON CHARACTERISTICS OF THE PHOTOVOLTAIC SYSTEMS MADE IN DIFFERENT TECHNOLOGIES
Mariana R. MILICI, L. Dan MILICI, Philip KEERSEBILCK, Win FLORE (Belgia), Dorel CERNOMAZU
Incalzirea globala a planetei noastre ca urmare a utilizarii de combustibili fosili este un subiect de actualitate. O alternativa pentru centralele poluante ce produc energie electrica o reprezinta panourile fotovoltice. Panourile solare transforma lumina so…
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A MATLAB GRAPHICAL USER INTERFACE FOR STUDYING BRUSHLESS DC MOTOR CONTROL
George ADAM, Alina Georgiana STAN, Gheorghe LIVINT
Deoarece profesorii sunt intr-o continua cautare de noi metode pentru predare, si considerand ca este un lucru necesar combinarea predarii traditionale cu noile metode de predare, utilizarea instrumentelor vizuale s-a dovedit a fi cea mai buna metoda de pred…
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CREAREA UNUI MEDIU SOCIAL PRIETENOS PRIN PROMOVAREA MIJLOACELOR DE ACCESIBILIZARE DE TIP PLATFORME RIDICATOARE PENTRU CLADIRI SI MIJLOACE DE TRANSPORT
Dr. ing. CS I Corneliu CRISTESCU, Ing. CS III, Catalin DUMITRESCU, Ing. IDT III Petrica KREVEY, Ing. CS Liliana DUMITRESCU
In articol se prezinta unele rezultate remarcabile ale activitatii de cercetare-dezvoltare desfasurate de Institutul de Cercetari pentru Hidraulica si Pneumatica-INOE 2000-IHP din Bucuresti si de partenerii sai, in directia promovarii tehnologiilor avansate …
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CONSTRUCTIVE SOLUTIONS FOR VARIABLE COMPRESSION RATIO ENGINES
drd.Iig.Adrian GABOR
Se crede ca in viitorul apropiat, raportul variabil de comprimare (VCR) va furniza industriei auto o gama larga de strategii pentru a putea fi produse motoare puternice, cu un consum redus de combustibil, ceea ce va duce la autovehicule atractive care se vo…
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THE FUNCTIONING OF SOME TRANSDUCERS AND SENSORS INTENDED FOR ROBOTIZED LASER
Dr.Ing. Wolfgang Janssen (Germania), Dr.Ing. Nicolae Joni, Ing. EWE. Alexandru Joni
Ultima perioada a dus la cresterea accentuata a cercetarilor pentru dezvoltarea aplicatiilor industriale ale diferitelor procese de sudare cu laser. In mod special interesul s-a concentrat pe dezvoltarea echipamentelor necesare pentru cresterea adaptivitatii…
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METODE SI PROCEDEE DE MASURARE A PROPRIETATILOR PANOURILOR STRADALE FONOABSORBANTE
Drd.ing. Gianina Ileana STAN, Prof.univ.dr.ing.dr.h.c. Ioan CURTU
Lucrarea abordeaza aspecte legate de proprietatile acustice ale barierelor stradale fonoabsorbante alcatuite din materiale compozite, cat si modele constructive ale acestora in functie de puterea de absorbtie si izolarea fonica . Sunt prezentate principalele …
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Energia valurilor
Prof. dr. ing. Mircea Bejan, Prof. dr. ing. Tiberiu Rusu, ing. Ioana Balan
Epuizarea rapida a rezervelor de combustibili minerali, folosirea lor fiind insotita de poluarea mediului inconjurator, resursele limitate de uraniu si incertitudinea atat a duratei, cat si a consecintelor ecologice la folosirea industriala a energiei termonu…
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Determinarea grosimii copertei zacamantului de granodiorit Valea Lazului-Pietroasa, judetul Bihor, prin metoda sondajului electric vertical
Dr. ing. Christian Stanciu, Conf. dr. ing. Mihai MARINESCU, Ing. Sanda BUGIU, Asist. cercet. ing. Christian STANCIU
Obiectivele lucrarii de fata sunt reprezentate de elucidarea unei structuri geologice-tehnice complexe (depuneri deluviale de panta si grosimea rocii alterate pe un masiv granodioritic fractura) in vederea evaluarii rezervelor de granodiorit, a stabilirii uno…
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THE USE OF THE RADIOFREQUENCY FIELD IN MÖSSBAUER MEASUREMENTS
Ph. D. Dipl.Eng. Ion Bibicu
Aplicarea campurilor de radiofrecventa asupra materialelor feromagnetice induce efecte interesante asupra proprietăţilor acestor materiale. Una din metodele de studiu a ac estor efecte este spectroscopia Mossbauer. A fost realizată o instalaţie pentru aplicar…
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COMPUTING SYSTEMS MULTI-OBJECTIVE OPTIMIZATION USING DOMAIN-KNOWLEDGE
Lucian N. VINȚAN
The main aim of this short paper is to point out the advanced computing systems’ optimization research developed by The Advanced Computer Architecture and Processing Systems Research Centre (ACAPS) from “Lucian Blaga” University of Sibiu, Romania. Multi-objec…
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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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INTERNAL RESONANT TRANSFORMER WITH DISTRIBUTED OPEN MAGNETIC CORE
Andrei MARINESCU, Aurelia SCORNEA, Ionel DUMBRAVA
The on-site dielectric tests on cables and high power electric machines requires the achievement of some medium voltage testing facilities with reduced dimensions and weights, allowing the compensation of the important reactive energy required by the own capa…
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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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A SOLUTION FOR CARBON DIOXIDE STORAGE AND COAL BED METHANE BENEFICIATION IN JIU VALLEY COALFIELD
Dorel ZUGRAVESCU, Nicolae ILIAS, Iosif ANDRAS, Sorin Mihai RADU, Iosif GRUNEANTU, George TESELEANU (Italia), Inga ROSIORU, Chiril GEORGE, Tiberiu IACOB-RIDZI, Cristian TOMESCU
The paper deals with a proposal of an integrated project for CO2 storage coming from the coal burning power plants and a joint CH4 (so called CBM) recovery and its valorization in energetic applications which will lead to a substantial reduction of the delive…
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ARE THE STATIC POWER CONVERTERS
ENERGY EFFICIENT?
Ion POTÂRNICHE, Cornelia POPESCU, Mina GHEAMALINGA
The power static converters, products used intensively in industrial applications of type as energy conversion, traction, equipment and lifting equipment structure and others, are characterized through two validates abilities in the industrial practice: utili…
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RESULTS REGARDING MONITORING OF THE RISKS IN THE ROMANIA-BULGARIA CROSS-BORDER AREA
Gheorghe MANOLEA, Laurențiu ALBOTEANU, Constantin ȘULEA
In the period 2011-2014 was developed the cross-border project RO-BG MIS ETC 166 ”Joint Risk Monitoring during Emergencies in the Danube Area Border ”.The objectives were:1. Conceiving and realization of photovoltaic system for anti-hail units power supply sy…
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NEW CONCEPTS FOR INCREASING THE BUILDINGS ENERGY EFFICIENCY
Anca DUTA, Ion VISA, Macedon MOLDOVAN, Mihai COMSIT
The efficient use of energy is a compulsory step towards sustainable development. Regardless the source (fossil fuel or renewable), energy consumption should be efficient to protect the resources and to lower the overall costs. This is particularly valid for …
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MODERNIZATION ELECTRIC SUBSTATIONS 110/20 KV
Eng. Florin DRACEANU PhD, Assoc. Prof. Eng. Cezar Dumitru POPA PhD, Assoc. Prof. Eng. Dumitru Radu PENTIUC PhD, Assoc. Prof. Eng. Leon MANDICI PhD
The subjects ”connection to the national energy system installations producing renewable electricity " is topical and of great importance for future managers of wind power, photovoltaic, biomass cogeneration. Economic situation in Romania also influence the…