190 articole găsite pentru „cost”.
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Aplicatii civile cu GPS
Lect. univ. drd. ing. Iustin Andronie, Asist. univ. drd. ing. Mihai Andronie
Reteaua de sateliti GPS si sistemele GPS au devenit un lucru obisnuit in viata de zi cu zi. Aplicatiile sunt dintre cele mai diverse, de la cele din domeniul militar, determinarea limitelor terenurilor, navigatie comerciala, pina la cele pentru uzul persoanel…
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Elaborarea unei colectii de produse de incaltaminte prin structurarea familiilor de modele
Ing. Mariana Pastina, Conf. dr. ing. Aura Mihai, Ing. Stan Mitu
In cadrul acestei lucrari se propune o metodologie de structurare ierarhica a unei familii de modele, pornind de la un model de baza. Modelul de referinta precum si modelele dezvoltate in cadrul colectiei au fost proiectate interactiv, cu ajutorul sistemului …
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PREDICTIVE MAINTENANCE APPLIED TO LASTING EQUIPMENT
Velicu ŞTEFAN, Ionel PĂUNESCU, Marius PARASCHIV, Paul Liviu PĂUNESCU
This paper highlights the research conducted for proactive maintenance application by analyzing vibration and temperature monitoring during equipment operation, a method that provides a beneficial way clear, comprehensive and thorough to maintain normal opera…
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SOME ASPECTS REGARDING STRESS WAVE PROPAGATION IN TRONCONICAL SHORT BARS WITH VARIABLE ANGLE
Nicolae ILIESCU, Vasile NĂSTĂSESCU, Costică ATANASIU
In the first part of the paper an algorithm of calculus, using FEM, developed by the authors in a previous paper, is presented. This computational algorithm was applied in the study of stresses wave propagation produced by an axial impact in a tronconical sho…
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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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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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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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DEZVOLTAREA DURABILĂ ŞI AMENAJAREA TERITORIULUI
Şerban RAICU, Dorinela COSTESCU
Cele trei componente ale dezvoltării durabile (socială, economică, ambientală) au impus acțiunilor de amenajare a teritoriului exigențe tot mai severe. Prin raportare la acestea, lucrarea relevă caracterul pluridisciplinar al analizei sistemului teritorial și…
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CONSIDERATIONS ON CONTACTLESS ELECTROMAGNETIC TECHNIQUES FOR MEASURING SOIL CONDUCTIVITY
Tudor BURLAN-ROTAR, Constantin STANESCU, Melania TAMAS
Conventional determination of resistivity by galvanic method requires a relatively large amount of labor to apply them in practice and is therefore expensive. It is the lateral or vertical variations of resistivity which form the basis of any interpretation. …
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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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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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CENTRUL DE COMPETENŢĂ PENTRU TEHNOLOGII SPAŢIALE DIN CONSTANŢA DEDICAT DEZVOLTĂRII SUSTENABILE A REGIUNILOR MARINE ȘI COSTIERE ROMÂNEȘTI – COSMOMAR
Răzvan MATEESCU, Simion NICOLAEV, Luminița BUGA, Gabriel GANEA,Eden MAMUT, Claudiu FERCU, Laurențiu OANCEA
Marea Neagră este bazinul terminal al unei treimi din reţeaua hidrografică a Europei (de cinci ori mai mult decât suprafaţa sa). Dintre toate bazinele oceanului planetar, degradarea mediului în bazinul Mării Negre este cea mai severă. Monitorizarea stării tro…
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ASUPRA MODELARII RETELELOR DE TRANSPORT INTERMODAL
Sef lucr.dr.ing. Dorinela COSTESCU
In strategiile de dezvoltare durabila, transportul intermodal de marfuri este considerat o solutie pentru echilibrarea pietei transporturilor si ameliorarea efectelor ambientale negative. Problemele tratate in aceasta lucrare se refera la proiectarea unei r…
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Evaluation of retrofitting strategies for energy saving in Brazilian hotels
MSc. Arch. Eduardo CADEMARTORI(Brazilia), Lecturer Assis. Eng. Guglielmina MUTANI PhD(Italia), Assis. Arch. Daniel CÓSTOLA PhD.(Olanda), Prof. Dr.Ir. Jan LM HENSEN (Olanda)
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Assesment of cost-effective sollutions for district heating systems moderization
Assoc. Prof. Eng. Marcel Ionel, PhD, Lecturer Eng. Diana Enescu, PhD, Lecturer Eng.Otilia Nedelcu, PhD
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The gims-based research remote sensing platforms
Prof. Eng. Vladimir F. KRAPIVIN PhD(Rusia), Prof. Eng. Anatolji M. SHUTKO PhD (Rusia), Prof. Eng. Costic NITU PhD, Assoc. Prof. Eng. Anda Sabena DOBRESCU PhD
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Optimization forecast of higher education agri-business cost
Badescu Adriana, Darvasi Doina
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Evaluation of projects in agri business using cost benefit analysis
Dorneanu Liliana, Bebeselea Adriana
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Life cycle costs in analyze of opportunities for willow’s culture as biomass ressources in Banat region
Tucu Dumitru, Smaranda Alexandru, Rotarescu Vasile, Condescu Mihai