265 articole găsite pentru „energy”.
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EDUCATIA – COMPONENTA ESENTIALA A POLITICII DE MEDIU A COMISIILOR ACADEMIEI OAMENILOR DE STIINTA DIN ROMANIA
Sef lucr. drd. Alexandru Ionut CHIUTA, Prof. univ. dr. ing. Ion N. CHIUTA, Drd. ing. Liviu Mihai SIMA
In acest articol se prezinta cum sunt tratate educatia si politicile de mediu in cadrul AOSR, precum si grupurile de lucru implicate in aceste activitati. De educatie se ocupa Comisia pentru Dezvoltarea Creativitatii, iar politicile de mediu se analizeaza in…
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CRITERII SI SISTEME DE EVALUARE ALE MEDIULUI CONSTRUIT IN CONTEXTUL DEZVOLTARII DURABILE
Prof. dr. ing. Daniel GRECEA, As. drd. ing. Mirela SZITAR, Conf. dr. ing. Adrian CIUTINA
Lucrarea de fata isi propune o prezentare a tipologiei constructiilor si a sistemelor de certificare ale cladirilor prin prisma dezvoltarii durabile. Spre deosebire de certificarea energetica, obligatorie in statele UE, care surprinde doar aspectul de mediu, …
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INCARCAREA PRIN SUDARE CU ELECTROZI TUBULARI A PALETILOR MORILOR DE CARBUNE
Drd.Ing. Adrian GALEA, Drd.Ing. Adrian Marian DRAGAN, Drd. Ing. Maria ( ROSCA )HARASCU, Prof. dr. ing. Iacob Nicolaie TRIF
Pentru realizarea unui ciclu functional de durata a utilajelor supuse uzuri avansate de abraziune, soc si temperaturi inalte din industria energetica sa recurs la cercetarea de noi electrozi tubulari cu rezistenta marita, depunere mare si ecologici. Pentru ac…
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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 risks and advantages of nanotechnology in technics, healthcare and environment protection
Mircea Dobrescu
In lucrare sunt prezentate comparativ principalele avantaje ale nanotehnologiei si ale producerii nanomaterialelor, domeniile lor de utilizare si riscurile pe care nanomaterialele le prezinta pentru sanatatea umana si pentru mediul inconjurator. Aceasta in co…
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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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On the limits of the Betz’s efficiency coefficient of wind turbines with the horizontally shaft
Prof.dr. ing. Petre Terzi
Pornindu-se de la modelarea curgerii prin elementele rotorului de turbina eoliana cu arbore orizontal, prin aplicarea conceptului de curgere turbulrbulenta neintubata, pe baza publicatiilor lui Betz si Sabinin, se prezinta un nou concept teoretic privind limi…
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Modalitati de imbunatatire a factorului de recuperare a caldurii la masinile termice de forta
Dr. ing. Carmen Papadopol, Prof dr. ing. Petre Raducanu
Una din marile probleme actuale ale Omenirii o reprezinta economisirea energiei si producerea ei cu tehnologii cit mai putin poluante. Instalatiile termice nu pot fi modernizate fara a studia procesele fizice din masinile termice de forta. De aceea lucrarea d…
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UPON ANALITICAL AND NUMERICAL CALCULUS OF THE MAIN PARAMETERS OF THE DETONATION PROCESS
Vasile NĂSTĂSESCU1,Ghiţă BÂRSAN
This paper presents some results of scientific research undertaken by the authors, regarding the numerical modeling of the detonation process, both the Finite Element Method (FEM) and the method of free particles, in version of Smoothed Particle Hydrodynamics…
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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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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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GOLD MINING: ECONOMIC DEVELOPMENT VERSUS SUSTAINABLE DEVELOPMENT
Victor ARAD, Susana ARAD, Vlad COSMA
Against the prolonged economic crisis, the mining resources have regained the investors' attention. Demand for gold continues to increase worldwide and the high price of gold ounce compared with historical values, indicating a favorable global context of the …
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CURRENT RESEARCH DIRECTIONS IN BUILDING PHYSICS IMPROVING PERFORMANCE LEVELS FOR NEW OR RENOVATED BUILDINGS
Adrian RADU, Maricica VASILACHE, Marian PRUTEANU
In the present climatic, social and political conditions, the EU energy independence is emerging as a priority. Therefore, it set new levels of thermal protection minimum required and adapting buildings architecturally to achieve a maximum of energy efficienc…
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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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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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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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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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Monitoring of the settler insects in the “energy willow” (salix viminalis l.) plantations in Mátészalka
Kondor Attila, Lenti István
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Strategic directions for the development of the energy sector according to the new European policy
Dobrin Marian, Ionel Ioana