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Featured researches published by Stefan Ragalie.


IFAC Proceedings Volumes | 2007

A SOFTWARE PACKAGE FOR OPTIMAL CONTROL DECISIONS IN LARGE SCALE SYSTEMS

Mihaela Mateescu; Stefan Ragalie; Florin Gheorghe Filip

Abstract This paper presents the utilization of SISCON, a the software package meant to be utilised in the evaluation of optimal decisions for large scale systems. The large scale systems have generally a complex structure and consequently a global computation approach cannot be effectively carried out if at all. First the decomposition of large–scale problems is carried out. Then the subproblems are solved by using standard optimization techniques. SISCON offers opportunities for solving non-linear mathematical programming problems and for evaluating optimal decisions in large scale systems control. SISCON firstly evaluates mathematical models developed from experimental data using LS least square methods for linear and nonlinear systems and after that then computes the optimal decision solution by solving the mathematical non-linear programming problems.


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2008

Optimal Control Decisions for Large Scale Systems Software Packages

Florin Gheorghe Filip; Mihaela Mateescu; Stefan Ragalie


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2008

Innovation, a fundamental factor in a knowledge-based economy

Stefan Ragalie; Vasile Dan; Mariana Vania


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2008

New cooperation forms between Romania and the Russian Federation by developing some maritime exchanges at Constanta and Rostov on Don

Stefan Ragalie; Mihai Macsim; Irina Sandu


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2008

Preliminary economic assessment of emulsified fuls manufacturing

Raluca Bogza; Rodica Miroiu; Stefan Ragalie


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2007

Tehnologie moderna pentru sinteza eterilor utilizabili ca aditivi pentru benzinele auto ecologice (Sinteza)

Raluca Bozga; Stefan Ragalie; Mihai-Sabin Muscalu; Gheorghe Manea; Rodica Miroiu; Mihaela Adina Mateescu; Andrei Silviu Dospinescu; Madalina Solomon; Viorel Gaftea


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2007

Noi forme de cooperare intre România si Federatia Rusa prin dezvoltarea unor schimburi comerciale maritime la Constanta si Rostov pe Don

Stefan Ragalie; Mihai Macsim; Irina Sandu


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2007

Obtinerea substantelor bioactive din insecte pentru producerea preparatelor keratolitice utilizate în medicina si cosmetica (sinteza)

Marius Bulearcă; Stefan Ragalie; Corneliu Russu; Marina Badileanu; Cristian Sima; Cornelia Neagu


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2007

Impactul delocalizarii productiei asupra pietei muncii (Sinteza)

Stefan Ragalie; Cornelia Neagu; Nicoleta Hornianschi; Marina Badileanu; Marius Bulearcă; Corneliu Russu; Cristian Sima; Daniel Fistung; Nicoleta Odae; Andrei Silviu Dospinescu; Viorel Gaftea


Revista de Economie Industriala (Journal of Industrial Eonomics) | 2007

Principalele aspecte economice privind eficienta tehnologiilor de producere a combustibililor de tip biodiesel

Stefan Ragalie; Raluca Bogza; Mihaela Mateescu

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