122 articole găsite pentru „show”.
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P-Q THEORY AND APPARENT POWER CALCULATION FOR ACTIVE FILTERING
Alexandru BITOLEANU, Mihaela POPESCU, Vlad SURU
Lucrarea sugereaza doua noi definitii ale puterii aparente pe baza teoriei p-q (teoria puterii aparente complexa instantanee). Astfel, se pun in evidenta componentele puterii neutile si relatia de cuadratura existenta intre puterile aparenta, activa, reacti…
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ASPECTS REGARDING THE ASSET MANAGEMENT OF THE ELECTRICAL EQUIPMENT INTO A POWER STATION
Mihai ANDRUSCA, Maricel ADAM, Adrian BARABOI, Daniel Florin IRIMIA
Piata de energie, in general, respectiv cea a energiei electrice, in particular, este intr-o continua dezvoltare si schimbare datorita diverselor procese, evenimente/fenomene care au loc in societate (fenomene naturale, criza economica, criza resurselor natu…
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FROM SCADA TO SMART GRID IN POWER TRANSMISSION AND DISTRIBUTION SYSTEMS
Alexandru MIRON, Sebastian MIRON (Franta), Crenguta E. BOBRIC, Lambert PIERRAT, Maria VIZITEU (Franta), Cezar POPA
In conducerea si supravegherea retelelor de transport si distributie a energiei electrice sunt utilizate sisteme inteligente de monitorizare, care ofera utilizatorului suficiente informatii si facilitati de comanda, pentru a exploata reteaua electrica din s…
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STUDY EVOLUTION OF BIT ERRORS AND ERRORS OF PACKAGES IN OFDM TRANSMISSION USING PILOT SYMBOL
Ion POPA
In aceasta lucrarea este realizat un studiu de performanta pentru un sistem de comunicatie mobila care foloseste tehnologia OFDM cu simbol pilot. Pentru realizarea acestui studiu am configurat un sistem de transmisii OFDM format din emitator ,receptor si can…
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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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IMPACT OF MOISTURE ON MYCOTOXINS CONTENT IN MAIZE
Prof. univ. dr. ing. Georgeta POP, Dr. ing. Dorin Augustin POP, Prof. dr. ing. Ersilia ALEXA, Dr. ing. Monica NEGREA
Lucrarea isi propune studiul unor factori care influenteaza continul de micotoxine din cariopsele (boabele) de porumb. Continutul de umiditate al probelor analizate peste limita maxima prevazuta in STAS pentru pastrarea in conditii optime a cerealelor si cond…
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MONITORIZAREA BOLILOR SI DAUNATORILOR LA MAR - VERIGA DE BAZA IN OBTINEREA UNOR FRUCTE DE CALITATE
Prof. dr. Olimpia Alina IORDANESCU, Drd. ing. Roxana Elena MICU
Dintre cele mai cunoscute boli ale marului face parte rapanul (Venturia inaequalis), iar ca daunator se remarca viermele merelor (Cydia pomonella). Impactul acestora asupra fructelor si implicit asupra calitatii acestora este foarte important, intrucat fructe…
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RESEARCH ON THE QUALITY YIELD OF HERBAL MINT (Mentha piperita L.) UNDER THE INFLUENCE OF MINERAL AND ORGANIC FERTILIZATION IN CLIMATE CONDITIONS IN S.C.D.A. LOVRIN
Drd. ing. Ovidiu PATRUI, Prof. dr. ing. Valeriu TABARA
Avand in vedere faptul ca fertilizarea este una din masurile care, aplicate corespunzator, duce la cresterea productiei si implicit a calitatii acesteia, multe cercetari efectuate in ultimul timp s-au axat pe gasirea unor formule optime pentru aceasta. Lucrar…
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LOCALIZAREA, RECUNOASTEREA FORMEI SI GENERAREA MODELULUI 3D A OBIECTELOR IN VEDEREA PREHENSIUNII – STUDIU DE CAZ
Dr. Inf. Alexandru Mihail Itu, Prof. univ. dr. ing. Eur Ing Ionel Staretu
Lucrarea prezinta o noua metoda de planificare automata in vederea prehensarii.Rezultatele din neuro-psihologie au aratat ca operatia de prehensiune poate fi descompusa in trei atape principale: localizare, centrare si prehensare. Pentru prehensarea automata …
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OPTIMIZAREA PERFORMANTELOR EDUCATIONALE PRIN MODELAREA SIMULATIVA A FLUXULUI DE PERSONAL, LA NIVELUL MICROSOCIAL AL UNEI FACULTATI
Dr. ec. Ramona Camelia PAUNESCU
Articolul isi propune sa aduca in atentia specialistilor necesitatea redefinirii unor concepte si introducerea unor concepte noi, astfel incat sa se asigure o intelegere clara, coerenta si interdisciplinara a oricarei organizatii ca sistem natural cu autoregl…
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Foods technology educational implementation to the students teaching
Florin M. Dumitrescu
Exista mai multe metode de a lega tehnologia alimentara cu predarea virtuala prin simulari de calcul. Acest fapt confera relevanta diverselor analize chimice si fizice din domeniul tehnologiilor alimentare, discutate si expuse cursantilor, si, de asemenea, r…
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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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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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MEANS FOR QUALITATIVE AND QUANTITATIVE DESCRIPTION OF THE CARDIO-PULMONARY SYSTEM OPERATION WITHIN IRREVERSIBLE THERMODYNAMICS WITH FINITE SPEED
Stoian PETRESCU, Monica COSTEA, Liliana TIMOFAN, Valeria PETRESCU
Illness and aging are irreversible processes, which inevitably affects us all. The answers to the questions how, why, and how much irreversible are the cardio-respiratory system processes, will allow improved design of artificial hearts and lungs (vital “spar…
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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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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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MÖSSBAUER EFFECT INVESTIGATION OF FE-C STEEL ELECTROLYTIC GALVANISATION
Ion BIBICU, Caius BULEA, Vasile RUS
Galvanizing is a very well known industrial process for anticorrosive and protection coatings. At first sight, galvanizing should not need any further important research and development involvement but many reasons contradict this appreciation: the constant e…
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THEORETICAL RESEARCHES ON THE STRESS STATE AT VIBRO-DRAWING
Octavian BOLOGA
The paper contains the mathematical modelling of the stress state at vibro-drawing for the case of introducing the vibrating motion on axial direction, by means of the punch, into the drawing die. Starting from the definition of the total radial stress as sum…