79 articole găsite pentru „advantage”.
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PERMANENT MAGNET SYNCHRONOUS MACHINES WITH HALBACH ARRAY CONFIGURATIONS – A F.E.M. APPROACH
Leonard LIVADARU, Florin LAZAR, Alecsandru SIMION, Adrian MUNTEANU, Adrian MALANCIUC, Sorin VLASCEANU
Utilizarea configuratiilor Halbach in constructia masinilor de curent alternativ cu magneti permanenti constituie o solutie relativ noua ce urmareste imbunatatirea performantelor si, mai nou, eliminarea fierului din anumite zone ale circuitului magnetic clas…
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CONTRIBUTION TO THE DEVELOPMENT OF ELECTROMECHANICAL ACTUATORS AND ELECTROCHEMICAL LIQUID MICROPUMPS
Ilie NITAN, Dorel CERNOMAZU
Lucrarea prezinta cateva solutii privind pompele electrochimice cu lichid dezvoltate in cadrul Universitatii „Stefan cel Mare” din Suceava. Pompele electrochimice cu lichid sunt caracterizate prin simplitate si consum redus de energie.
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A COMPUTER SIMULATION OF THE THERMOMAGNETIC ACTUATOR USED IN SOLAR ENGINES
Nicolae SOREA, Dorel CERNOMAZU
Acest articol prezinta simularea pe computer a actuatorului termomagnetic utilizat in cazul motoarelor solare bazate pe conversia helio-termo-magnetica. Sunt prezentate de asemenea avantajele acestui tip de actuator.
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STUDY OF A 3 PHASE (6/4) SWITCHED RELUCTANCE MOTOR CONTROL
Nicolae-Daniel IRIMIA, Alecsandru SIMION, Leonard LIVADARU, Sorin VLASCEANU, Ovidiu DABIJA, Ana-Maria MIHAI
Controlul masinilor cu reluctanta variabila a cunoscut un interes din ce in ce mai crescut in ultima perioada, ca urmare a avantajelor si a diferitelor posibilitati de utilizare pe care le ofera aceste categorii de masini electrice. In lucrarea de fata este …
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CIRCUIT THEORY VS COUPLED MODE THEORY IN WITRICITY CONCEPT DESCRIPTION
Lucia DUMITRIU, Mihai IORDACHE, Catalin DUMITRIU, Georgiana ZAINEA, Lucian MANDACHE, Yves NEAU (Franta)
Witricity este un concept care defineste o noua tehnologie pentru transferul de informatie/putere intre o sursa si un receptor fara a folosi conductoare. Pentru a descrie propagarea luminii in ghiduri de unde sau cavitati optice sub influenta perturbatiilor…
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CONSIDERATION ON RFID TECHNOLOGY AND APPLICATION FIELDS
Georgiana VIZITEU, Bogdana FLOREAN, Andrei NIAGU
In acest articol se face o trecere in revista a celor mai folosite domenii de aplicatii in care este utilizata tehnologia RFID. Datorita avantajelor pe care etichetele RFID le prezinta, tehnologia RFID va inlocui codurile de bare liniare si bidimensionale. D…
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SISTEM PENTRU COMPENSAREA VIBRATIILOR PRIN SUSPENSII ACTIVE
Ing. Dumitru STRAMBEANU, Ing. Iuliu Romeo POPOVICI, Ing. Daniel LIPCINSKI, Ing. drd. Silviu Octavian MEDIANU, Mircea IGNAT, George ZARNESCU, Alina DUMITRU, Jana PINTEA, Cristinel Ioan ILIE, Ionel CHIRITA
Lucrarea prezinta un sistem de compensare a vibratiilor prin suspensii active, utilizand un lant electronic de masura, control si executie, un sistem mecanic pentru sustinerea sarcinii util, senzori si actuatori piezoceramici. Se prezinta arhitectura electro…
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MERSUL DE TREN INTEGRAT LA INTERVALE REGULATE DE TIMP – SOLUTIE DE CRESTERE A MOBILITATII POPULATIEI
Drd. ing. Iosif SZENTES, Drd. ing. Viorel LUCACI
Mersul de tren cadentat se foloseste frecvent in diferite situatii si de catre un numar ridicat de administratii de cale ferata din lume. Conceptul mersului de tren cadentat a fost dezvoltat ulterior in sistem integrat de circulatie la intervale regulate (IT…
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STUDIES REGARDING THE USE OF PHOSPHATE GROUPS-IMPREGNATED RESINS IN VIEW OF METAL IONS REMOVAL FROM SOLUTIONS
Cerc. st. dr. ing. Mihaela CIOPEC, Sef lucr. dr. ing. Cornelia MUNTEAN, Sef lucr. dr. ing. Adina NEGREA, Prof. dr. ing. Petru NEGREA, Prof. dr. ing. Corneliu DAVIDESCU, Asist. dr. ing. Lavinia LUPA
Prezenta ionilor metalelor grele in mediu constituie o preocupare majora datorita toxicitatii lor pentru multe forme de viata. Tratarea apelor reziduale continand ioni de metale grele necesita concentrarea metalelor intr-un volum mai mic urmata de recuperarea…
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O abordare moderna pentru producerea eficienta a biodieselului
Nicolae Sdrula, Ioan Frasineanu
Uniunea Europeana este puternic dependenta in prezent de combustibilii fosili pentru nevoile crescinde de transport. Biocombustibilii pot oferi o alternativa importanta la cei fosili pe termen scurt si mediu. Dintre acestia, biodieselul este un combustibil ce…
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Utilizarea tehnologiilor avansate actuale pentru realizarea unui instrument informatic integrat privind studiul comportamentului la uzura si al durabilitatii lubrifiantilor
Drd. ing. Irina Radulescu, Conf. dr. ing. Alexandru Valentin Radulescu
Lucrarea isi propune prezentarea instrumentului informatic integrat pentru modelarea si simularea comportarii la uzura si a durabilitatii lubrifiantilor, realizat in cadrul unui proiect CEEX, de catre parteneriatul compus din mai multe unitati de cercetare st…
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COMPARATIVE DISCUSSION ABOUT THE DETERMINING METHODS OF THE STRESSES IN PLANE SLABS
Codrin PRECUPANU, Dan PRECUPANU, Ștefan OPREA
In this paper it is presented the necessity of intense developing of the finite differences method, highlighted by the authors since the first Congress of Numerical Calculus in Bruxelles 1992, at the determining of the stress state in plane structural element…
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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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CONTROL AND COORDINATION OF ECONOMIC AND INTELLECTUAL ACTIVITIES BY INTEGRATED COMPLEX STRUCTURES
Constantin MARIN
This paper belongs to the category of research for the development and implementation of heterogeneous structures they apply favorable inclusion of the human factor for control and coordination of complex activities from various fields: economic, intellectual…
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STUDY REGARDING THE USE OF NEW SUSTAINABLE TEXTILE MATERIALS
Dorin VLAD, Alina Mihaela COLDEA, Diana COMAN
This paper presents a new eco-efficient way about using textile materials in order to minimize potential environmental impacts and human health. It also shows the advantages and the limitation of these materials. Because conventional textile production is one…
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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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HIGH PERFORMANCE MAGNETIC DEVICES BASED ON NANOCRYSTALLINE MATERIALS
Andrei MARINESCU Horia GAVRILA, Ionel DUMBRAVA
During the last two decades remarkable advances occurred in the field of semiconductor devices and smart systems, by their miniaturization and performance increase. Consequently, the reduction of equipment energy consumption and dimensions has resulted. A maj…
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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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APPILCABILITY PRINCIPLES OF THERMAL SPRAYING
Prof. Assoc. Eng. Mihaela POPESCU, Phd student Ibolyka BRAN, Dr. Eng. Radu Alexandru ROSU, Assist. Dr. Eng. Carmen OPRIS
Pulverizarea termica este un domeniu, folosit cu succes in ingineria suprafetei ,datorita versatilitatii si gamei largi de materiale de depunere utilizate (metalice, compozite,ceramice, aliaje cu memoria formei, cermeti). Se exemplifica interdisciplinaritatea…