M. Romanca

Universitatea Transilvania Brasov, Kronstant, Braşov, Romania

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Publications (10)0.55 Total impact

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    ABSTRACT: The paper presents a new system used for starting the diesel engine of the LDH1250HP locomotive, for improving its performances, reliability and availability. The system developed uses rapid release storage devices, a power electronic unit and a computer linked with all the distributed system elements, by using Ethernet bus. Also, the paper describes an intelligent data acquisition system integrated with the starting system and developed to monitor the electrical parameters of the LDH1250HP locomotive. The proposed monitoring system allows evaluating the electrical locomotive parameters and the overall system performances. The details of implementation and the experimental results are also presented. The technical implementation allows a significant reduction of exploitation cost and carbon footprint of the locomotive.
    Optimization of Electrical and Electronic Equipment (OPTIM), 2010 12th International Conference on; 06/2010
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    ABSTRACT: The advantages of supercapacitors at the starting of internal combustion engines (ICE), as a complementary source to classical batteries, are nowadays certitudes: the significant extension of battery life span, the reduced volume and weight, meeting the environmental demands and lowering starting time and energy. The paper intends to develop a model of the electrical behavior of the assembly supercapacitor-starter driven by the ICE crankshaft, model allowing reasonable estimations of supercapacitors characteristics used for ICE starting. The development of the model was based on real signal analysis on a conventional battery-starter starting system.
    01/2010;
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    ABSTRACT: The paper presents a Radon monitoring system. The system is designed for real time multiple location monitoring. The paper presents in the first part a method and an instrument for measuring radon concentration in air. Simulink simulations and implementation of the measurement principle are presented. Instrument position is determined by GPS and transmitted over GPRS along with the measurements results. Data management is accomplished by a software component of the system. The paper presents as an application, an investigation on nanomaterials to be used for Radon mitigation.
    Advances in Electrical and Computer Engineering 01/2010; · 0.55 Impact Factor
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    ABSTRACT: The population of Romania is an aged population with high risk of disease and a reduced birth rate. One possible solution to address these issues is the improvement and proliferation of surveillance and prevention systems, in order to manage or rapidly detect the health problems with the lowest costs. In this paper we present the e-health / e-homecare system we propose, that would facilitate and improve the efficiency of the primary medical care, a fundamental component of the medical system.
    09/2009;
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    ABSTRACT: Ensuring the appropriate functionality of all the interconnected electric and electronic appliances inside an intelligent building requires an environment where electromagnetic interferences are attenuated so as to eliminate any harmful effects. This paper proposes some straightforward investigation techniques regarding the electromagnetic shielding effectiveness of construction materials. The authors present some simulation methods by developing an original model for shielding capability estimation along with experimental methods and determinations on materials with shielding capability.
    Optimization of Electrical and Electronic Equipment, 2008. OPTIM 2008. 11th International Conference on; 06/2008
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    ABSTRACT: The paper presents a system for remote control of distributed and networked drives and data acquisition devices. The system goal is to be integrated in monitoring systems for Intelligent Buildings. The authors developed and tested a wireless acquisition & distribution architecture (IEEE 802.11 "WiFi"-compliant) based on embedded webservers (with Ethernet-serial-Ethernet tunneling) at the drives' side and PDA/Communicators (Pocket PC Smartphones running MS Windows Mobile CE6) at the remote and mobile control side.
    Optimization of Electrical and Electronic Equipment, 2008. OPTIM 2008. 11th International Conference on; 06/2008
  • Proceedings of the 1st ACM International Conference on Pervasive Technologies Related to Assistive Environments, PETRA 2008, Athens, Greece, July 16-18, 2008; 01/2008
  • M. Romanca, W. Szabo
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    ABSTRACT: First Page of the Article
    Optimization of Electrical and Electronic Equipments, 1998. OPTIM '98. Proceedings of the 6th International Conference on; 06/1998
  • M. Romanca, G. Pana, I. Szekely, F. Sandu
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    ABSTRACT: Not Available
    Optimization of Electrical and Electronic Equipments, 1998. OPTIM '98. Proceedings of the 6th International Conference on; 06/1998
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    R Oev, M Scutaru, T Iacobescu, M Romanca
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    ABSTRACT: Hospital institutions' needs of high-availability data resources are ever growing, and accordingly there must be included reliable measures to control the access security to data bases. In this paper, we propose architecture, based on the SONA model that could tend to a hospital's data security needs. The architecture is structured in three logical components: "Client", "Server-Farm" and "Management"; thus making it very scalable. Every component needs to satisfy a set of guidelines in order to obtain maximum efficiency and different implementations can be done with similar results, this being a proof of its high capacity of integration in other networks.