Articole ştiinţifice: Recent submissions

  • The Tuning Algorithm of Controllers in Multiple-Loop Feedback Control System with Three Contours 
    Irina COJUHARI (ISEEEC, 2009)
    A tuning algorithm of linear controllers P, PI, PID in multiple-loop feedback control systems with three contours is proposed in this paper. The control objects consists from three subprocesses, which are described by ...
  • Mathematical Model of the Alloying Process at The Epitaxial Semiconductor Structure Growth 
    BARANOV, Simion; IZVOREANU, Bartolomeu; GORCEAC, Leonid; GASHIN, Petru; COJUHARI, Irina (Asociatia Generala a Inginerilor din Romania, 2013)
    În această lucrare este prezentat modelul matematic al procesului de aliere cu GaAs a straturilor epitaxiale obţinute în sistemul Ga-AsCl3-H2 cu transport de reacţii. Controlul în sistemul automat se realizează prin ...
  • Estimation of the mathematical model of the DC motor coupled with a reaction wheel 
    MELNIC, Vladimir; COJUHARI, Irina (The Romanian Society of Applied and Industrial Mathematics, 2018)
    In this paper was proposed to estimate the mathematical model of the DC motor coupled with a reaction wheel. It was proposed the experimental curve identification and its approximation with model of object with rst, second ...
  • Educaţia 4.0: evoluţie, provocări şi perspective 
    GOGOI, Elena; ISTRATI, Daniela; COJUHARI, Irina (Universitateai de Stat din Tiraspol, 2021)
    This paper briefly depicts the evolution of education from the Industrial Society till the Digital Age. The development of technology has produced several industrial revolutions which led to radical changes in the modern ...
  • Cultural Heritage Interactive Dissemination through Natural Interaction 
    BRAN, Emanuela; BAUTU, Elena; POPOVICI, Dorin-Mircea; BRAGA, Vasili; COJUHARI, Irina (RoCHI ACM, România, 2019)
    Virtual Heritage is widely used in education, enhancing the learning process by motivation and by providing a natural experience. New ways for the user to explore cultural heritage virtual environments represent dynamic ...
  • Contributions of the controllers tuning in the multiple-loop feed back control system with three contours with inertia 
    COJUHARI, Irina (University of Craiova, 2009)
    A tuning algorithm of linear controllers P, PI, PID in multiple-loop feedback control systems is proposed in this paper. The control objects consist of three subprocesses, which are described by dynamical models with inertia ...
  • Acordarea regulatoarelor în sisteme de reglare în cascadă la modele de obiecte cu elemente identice 
    COJUHARI, Irina (ICI Bucureşti, 2011)
    În lucrare se propune un algoritm de acordare a regulatoarelor tipizate P, PI, PID în sisteme de reglare în cascadă cu două bucle de reglare. Procesul condus se prezintă prin două subprocese cu inerţie. Pentru acordarea ...
  • Some aspects of the analysis of functioning NGN network based on semi-Markov processes 
    TSURCANU, D. N.; NISTIRIUK, P. P.; ALEXEI, A. S.; ANDRONIC, S. M.; FINCIUK, S. I.; NISTIRIUK, P. V. (IEEE, 2010)
    The present paper concerns the application of semi-Markov processes to analyze the operation of NGN networks (Next Generation Network).
  • Evaluation of Bit Error Rate probability for radio communications and fiber-optic communication systems 
    TSURCANU, D. N.; NISTIRIUK, A. P.; CHIHAI, A. G.; NISTIRIUK, P. P.; BAXAN, L. V.; ANDRONIC, S. M.; NISTIRIUK, P. V.; RUSSU, G. V.; ALEXEI, A. S.; IAZLOVETKII, M. L.; TSURCANU, T. P. (IEEE, 2014)
    The present paper concerns the estimation of BER parameter (Bit Error Rate) for radio systems and FOCS (fiber-optic communication systems), taking into consideration what is known the relationship signal/noise SNR ...
  • Application of external synchronization for increasing noise stability in homodyne reception of optical signals 
    TSURCANU, D. N.; TSURCANU, T. P.; NISTIRIUK, A. P.; ANDRONIC, S. M.; CHIHAI, A. G.; NISTIRIUK, P. P.; BAXAN, L. V.; NISTIRIUK, P. V.; ALEXEI, A. S. (IEEE, 2012)
    In the infrared range of wavelengths λ = 1 ... 6 microns the use of an external injection synchronization based on the cylindrical lens (CL) with tunable parameters, to improve noise stability in homodyne reception of ...
  • The AROUND project: Adapting robotic disaster response to developing countries 
    BOUCHER, Alain; CANAL, Richard; CHU, Thanh-Quang; DROGOUL, Alexis; GAUDOU, Benoit; LE, Van Tuan; MORARU, Victor; NGUYEN, Nhu Van; VU, Quang Anh Nguyen; TAILLANDIER, Patrick; SEMPE, François; STINCKWICH, Serge (IEEE, 2009)
    The global climate change induces an increase, in terms of frequency and devastating power, of natural disasters (particularly in developing countries). For facing this, there is a growing need for robotic assistance, for ...
  • Retransmission-based Available Bandwidth Estimation in IEEE 802.11-based Multihop Wireless Networks 
    VAN NAM, Nguyen; GUERIN-LASSOUS, Isabelle; MORARU, Victor; SARR, Cheikh (Association for Computing Machinery, New York, United States, 2011)
    Estimating the available bandwidth in IEEE 802.11-based multihop wireless networks is a very difficult task due to the medium sharing among contending nodes and collisions between hidden stations. Several methods have been ...
  • Making Networked Robots Connectivity-Aware 
    LE, Van Tuan; BOURAQADI, Noury; STINCKWICH, Serge; MORARU, Victor; DONIEC, Arnaud (IEEE, 2009)
    Multi-Robot Systems (MRSs) is a key issue in many robotic applications. In our view, the solution to this problem consists of two main steps: (i) making robots aware of the network connectivity; and (ii), making use of ...
  • Connectivity Awareness in Networked Robotic Systems 
    LE, Van Tuan; BOURAQADI, Noury; STINCKWICH, Serge; MORARU, Victor (IEEE, 2009)
    Maintaining the network connectivity in mobile multi-robot systems (MRSs) is a key issue in many robotics applications. In our view, the solution to this problem consists of two steps: (i) making robots aware of the network ...
  • Characterisation and Application of Idle Period Durations in IEEE 802.11 DCF-based Multihop Wireless Networks 
    NGUYEN, Van Nam; LASSOUS, Isabelle Guérin; MORARU, Victor; RAZAFINDRALAMBO, Tahiry (Association for Computing Machinery, New York, United States, 2012)
    Multihop wireless networks are used to provide internet connectivity to the users and the level of performance and quality expected by these users are increasing. In order to meet these performance and quality requirements, ...
  • Caractérisation des Périodes Libres dans les Réseaux 802.11 Multisauts 
    NGUYEN, Van Nam; GUÈRIN-LASSOUS, Isabelle; RAZAFINDRALAMBO, Tahiry M.; MORARU, Victor (HAL, 2012)
    Un certain nombre de travaux sur les r´eseaux 802.11 multisauts reposent sur des hypoth`eses sur les p´eriodes libres et occup´ees du m´edium radio. Dans ce travail, nous cherchons `a caract´eriser les dur´ees des p´eriodes ...
  • Using Domain Specific Hierarchical Good Practice for Ranking Service Compositions 
    MARGINEAN, Anca; LETIA, Ioan Alfred; ZAPOROJAN, Sergiu (IEEE, 2014)
    We propose a method for ranking the service compositions according to the good practice of each domain. Knowledge about good practice is modeled in a hierarchical manner inspired from Hierarchical Task Networks. In describing ...
  • Relaxarea semidefinită pentru problema echilibrării liniilor de asamblare 
    MORARU, Vasile; ZAPOROJAN, Sergiu (RoCHI ACM, România, 2013)
    Suportul decizional în organizarea optimă a activităţii unei întreprinderi are la bază anumite modele matematice, inclusiv de optimizare. In această lucrare se consideră problema echilibrării liniilor de asamblare cu numele ...
  • Monitorizarea procesului de fabricaţie a microfirelor 
    ZAPOROJAN, Sergiu; CALMÎCOV, Igor; PLOTNIC, Constantin; CĂRBUNE, Viorel (RoCHI ACM, România, 2013)
    Dat fiind rolul cheie al operatorului uman în unele sisteme tehnologice, o interfaţă greoaie nu îi afectează numai productivitatea, ci şi valoarea însăşi a activităţii. În lucrare este descrisă o aplicaţie inovativă utilizată ...
  • Early estimation of gain/loss in quality in designing the embedded systems 
    ZAPOROJAN, Sergiu; SECRIERU, Vitalie; DOROGAN, Valerian; MORARU, Vasile (IEEE, 2016)
    Embedded system design is subject to many constraints with strong influence on design objectives and architectures. Designers of embedded systems need to consider the desired functionality together with cost constraints, ...

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