156 articole găsite pentru „ICT”.
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PROBLEME DE PROTECTIE AMBIENTALA LA SUDAREA CU SARMA TUBULARA
Prof. assoc. dr. ing. Mihaela POPESCU, Dr. ing. Radu Alexandru ROSU
Problema asigurarii protectiei ambientale la sudarea cu sarma tubulara este de stricta actualitate. Se face referire la compozitia sarmei tubulare, cu trimiteri clare la prevederile Documentelor Institutului International de Sudura, IIS/IIW dar si la necesita…
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THE MODAL ANALYSIS OF PLATES MADE OF WOVEN COMPOSITE MATERIALS
Prof. univ. dr. ing. dr. h. c. Ioan CURTU, dr. ing. Mariana Domnica STANCIU, Prof. univ. dr. ing. Vasile CIOFOAIA,
Lucrarea prezinta analiza modala a comportarii dinamice a placilor din materiale compozite cu insertii textile. Au fost analizate patru tipuri de material compozit, acestea fiind diferite prin numarul de straturi, grosime si tipul de presiune aplicat in cadr…
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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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Tricoturi 3D cu aplicatii tehnice
Dorin Ionesi, Ramona Ciobanu, Dorin Dan, Costea Budulan
Tricoturile tridimensionale cu aplicatii tehnice reprezinta solutiile principale utilizate la obtinerea preformelor tricotate cu forme complexe. Materialele compozite tricotate ofera o gama diversa de utilizari in toate domeniile tehnice (domeniul constructii…
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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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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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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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INCREASING SUSTAINABILITY OF THE HOUSING STOCK BY AVOIDING DAMAGE CAUSED BY THE SOIL-STRUCTURE RESONANCE
Dinu BRATOSIN
In any dynamic system, the coincidence between natural period and excitation period (the resonance) lead to extremely large dynamic amplification. For example a linear system with damping of order 25% the dynamic amplification factor has values between d…
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POSSIBLE MEASURES OF TAKING-OVER/ DYNAMIC CONTROL OF SEISMIC ACTIONS APPLICABLE TO URBAN UTILITY SYSTEMS. SEISMIC WAVES DEFLECTION/ DAMPING USING METAMATERIALS
Bogdan UNGUREANU, Gabriela M. ATANASIU, Victoria COTOROBAI
Nowadays, an accurate seismic prediction regarding the date, location and magnitude is still a challenge, thing that implies taking into consideration efficient, preventive, seismic risk management measures, not only for civil buildings but also for urban uti…
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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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THE PARADIGMS OF CHEMICAL ENGINEERING
Alexandru WOINAROSCHY
It is presented the chemical engineering development, as guided by its four main paradigms: unit operations, transport phenomena, product engineering and sustainable chemical engineering. The starting point is the paradigm definition as “a set of assumptions,…
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NEARLY ZERO ENERGY BUILDING CONCEPT, ENERGY DESIGN PARADIGM FOR NEW BUILDINGS AND FOR RENOVATING EXISTING BUILDINGS
Dan CONSTANTINESCU, Gabriela CARACAŞ
The paper focuses on the new concept of Nearly Zero Energy Building – NZEB, which should lead, in time, to reducing the fossil energy consumption and to the protection of the natural and built environment. The NZEB concept, as defined by the European Directiv…
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CONSIDERATIONS ON ROMANIA’S SUSTAINABLE ENERGY DEVELOPMENT
Aureliu LECA
This analysis looks into the sustainability of the Romanian energy sector against the main trends in the world economy and within the framework of the energy and environment policies of the European Union (EU). The gloom and doom conclusion, that sustainable …
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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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INTERNATIONAL VISIONS ON THE USE OF NATURAL RESOURCES IN TERMS OF SUFFICIENCY, IN ROMANIA
Nicolae Tiberiu ILIAŞ, Ioan GÂF-DEAC, Ioan I. GÂF-DEAC, Iosif ANDRAS
The paper the use of natural resources in terms of sufficiency is examined, by making operational elements of management and energy diplomacy, published in the early part of the twenty-first century all over the world. In this context, a number of key element…
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ASPECTE PRIVIND PERIOADA DE ÎNLOCUIRE A FILTRELOR DE AER PENTRU AUTOMOBILE PE BAZA STĂRII LOR TEHNICE
Marius TOMA, Cristian ANDREESCU, Niculae NEGURESCU
Sistemul de alimentare cu aer al motorului este principala sursă prin care impuritățile ajung la nivelul cuplelor cinematice ale motorului. Protejarea motorului se face prin înlocuirea periodică a filtrelor de aer. Stabilirea duratei de utilizare este o probl…
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COMPUTER ASSISTED SIMULATION OF MARKET SHARES
FOR COMPETING PRODUCTS USING MARKOV CHAINS
Radu BUCEA-MANEA-TONIS, Rocsana BUCEA-MANEA-TONIS
Article implements Markov chains in prediction of market shares for competing products, in a given time horizon. Practical approach is implemented in C code, recursively generates transition probabilities to determine the limit vector ?. The case study is pe…
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PERFORMANCE OPTIMIZATION OF A PVT THAT IS INTEGRATED INTO AN INDUSTRIAL COMPANY
Prof. Eng. Aneta HAZI, PhD, Prof. Eng. Gheorghe HAZI PhD, Lecturer. Eng. Roxana GRIGORE PhD
In lucrare este prezentat un model matematic de optimizare a unui sistem PVT integrat intr-o unitate industriala, in care este folosita continuu caldura obtinuta din sistem. Functia obiectiv a modelului este eficienta energetica globala si eficienta exerget…
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Simulation of District heating operation with heat storage system
Eng. Aurora CUGNO, Eng. Michel NOUSSAN, Eng. Giulio CERINO ABDIN, Assis. Prof. Eng. Alberto POGGIO PhD - Italia