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Browsing Articole ştiinţifice by Author "ZAPOROJAN, Sergiu"

Browsing Articole ştiinţifice by Author "ZAPOROJAN, Sergiu"

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  • An Approach to Schedule Production using the Reservation Tables 
    ZAPOROJAN, Sergiu; MORARU, Vasile; GROZA, Adrian (Springer Nature Switzerland, 2015)
    This paper deals with the problems of scheduling of manufacturing where specific requirements have to be considered like production of microwire and specialized products based on it. Scheduling of such production systems ...
  • Assisting drivers during overtaking using Car-2-Car communication and multi-agent systems 
    CARA, Calin; GROZA, Adrian; ZAPOROJAN, Sergiu; CALMICOV, Igor (IEEE, 2016)
    A warning system for assisting drivers during overtaking maneuvers is proposed. The system relies on Car-2-Car communication technologies and multi-agent systems. A protocol for safety overtaking is proposed based on ACL ...
  • A continuous reformulation of the quadratic unconstrained binary optimization problem 
    MORARU, Vasile; ZAPOROJAN, Sergiu (“Lucian Blaga” University, 2015)
    In this paper we consider the Quadratic Unconstrained Binary Optimization (QUBO) Problem. Using a suitable function and penalty parameter we can reformulate the original QUBO problem as a continuous program. It is shown ...
  • Data-Based Technique for Extracting Knowledge from Data Generated in Experiments 
    ZAPOROJAN, Sergiu; CARBUNE, Viorel; CALMICOV, Igori (IEEE, 2020)
    Fuzzy sets are used in different fields and determination of the membership functions is one of the most important issues in the design of fuzzy systems. The paper presents an approach to that problem to provide solutions ...
  • 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, ...
  • A formal approach for identifying assurance deficits in unmanned aerial vehicle software 
    GROZA, Adrian; LETIA, Ioan Alfred; GORON, Anca; ZAPOROJAN, Sergiu (Springer Nature Switzerland, 2015)
    While formal methods have proved to be unfeasible for large scale systems, argument-based safety cases offer a plausible alternative basis for certification of critical software. Our proposed method for increasing safety ...
  • Hardware implementation of Hopfield-like neural networks: Quantitative analysis of FPGA approach 
    ZAPOROJAN, Sergiu; CARBUNE, Viorel; SLAVESCU, Radu Razvan (IEEE, 2021)
    This paper provides a rigorous analysis of FPGA implementation of Hopfield-like neural networks. The relationship between the hardware resources used to synthesize the data path and those used to provide network connections ...
  • Interfaces dans l’organisation des systemes de production 
    ISTRATI, Daniela; CALMÎCOV, Igor; MORARU, Vasile; ZAPOROJAN, Sergiu (Agentia de Stat pentru Proprietatea Intelectuala a Republicii Moldova (AGEPI), 2023)
    This paper aims to present a concept of a user interface system. First, the main elements of the interaction dimension within an HMI interface are described. Being an essential part of HMI interface dimensions, these ...
  • A method for measuring microwire parameters 
    DOROGAN, Valerian; ZAPOROJAN, Sergiu; MUNTEANU, Eugeniu; LARIN, Vladimir (Institutul de Fizică Aplicată, 2016)
    The most common techniques for measuring microwire geometrical parameters are provided by post manufactory measurements. These techniques are incompatible within automated production of microwire. A specialized meter is ...
  • Metode de preluare a experienţei operatorului uman pentru conducerea proceselor industriale 
    GUŢULEAC, Emilian; ZAPOROJAN, Sergiu; MORARU, Victor; PLOTNIC, Constantin; CĂRBUNE, Viorel (Universitatea de Stat „Bogdan Petriceicu Hasdeu“, Cahul, 2016)
    A fost elaborat un model care dă dovadă de comportament apropiat de cel uman în procesul decizional specific turnării microfirului magnetic. Acest comportament se datorează preluării informaţiei specifice despre intervalele ...
  • A model of programmable processors 
    ZAPOROJAN, Sergiu (Universitatea Politehnica, Bucureşti, 1997)
    Designers of electronic systems use more and more programmable processors in their systems. The programmability of processing units is considered as an efficient approach to support the increasing requirement on the functions ...
  • 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 ...
  • 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 ...
  • A Second Order-Cone Programming Formulation for Simple Assembly Line Balancing Problem 
    MORARU, Vasile; ZAPOROJAN, Sergiu (Lucian Blaga University Press, Sibiu, 2013)
    Decision support in order to assure an optimal business in the framework of a industrial company is based on some mathematical models, including optimization. The paper discusses the numerical solving of a task known as a ...
  • A Second Order-Cone Programming Relaxation for Facility Location Problem 
    MORARU, Vasile; ZAPOROJAN, Sergiu; GROZA, Adrian (IEEE, 2014)
    In this paper we discuss the numerical solving of one of the well known problems related to the production systems. Namely, it is about facility location problem, which is reformulated in terms of non-convex minimization ...
  • Some of the aspects of decision design in development of the intelligent wire casting machine 
    ZAPOROJAN, Sergiu; PLOTNIC, Constantin; CALMICOV, Igor (Lucian Blaga Univesity Press, Sibiu, 2011)
    The process of microwire casting can be one of the methods of nanotechnology and advanced materials. The objective of this paper is to discuss the problem of decision design in the development of an intelligent machine for ...
  • Timed hybrid Petri Nets visual simulation in VPNP 
    GUŢULEAC, Emilian; GÎSCA, Vasile; GUŢULEAC, Ludmila; ZAPOROJAN, Sergiu (Stefan cel Mare University of Suceava, Romania, 2004)
    This paper presents a visual simulation of timed hybrid Petri nets (HPN) a class of Petri nets in which some places may hold fluid rather than discrete tokens. The simulation software has been developed and implemented in ...
  • Uncertainty modelling of dynamically reconfigurable systems based on rewriting stochastic reward nets with z-fuzzy parameters 
    MORARU, Victor; GUŢULEAC, Emilian; ZAPOROJAN, Sergiu (Institute of Mathematics and Computer Science of the Academy of Sciences of Moldova, 2021)
    This paper presents the descriptive compositional approach for uncertainty modelling and performance evaluation of dynamic reconfigurable discrete event systems (ReDES) using rewriting stochastic reward nets (ReSRN) with ...
  • 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 ...

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