UTM: Recent submissions

  • 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, ...
  • 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 ...
  • 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 ...
  • Assessment of influence of systematic errors on the precision with which the normalized frequency of a sinusoidal signal is determined by means of a discrete fourier transformation with interpolation 
    BELEGA, D.; ZAPOROJAN, S. (Springer Nature Switzerland, 2009)
    The influence of systematic errors caused by the infleunce of the imaginary part in the spectrum of a sinusoidal signal on the estimator of its normalized frequency is analyzed by means of a discrete Fourier transformation ...
  • 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 ...
  • 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 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 ...
  • A Knowledge-Based Approach for Microwire Casting Plant Control 
    ZAPOROJAN, S.; PLOTNIC, C.; CALMICOV, I.; LARIN, V. (IGI Global, 2011)
    This chapter presents the main ideas and preliminary results of an applied research project concerning the development of an intelligent plant for microwire casting. The properties of glass-coated microwires are useful for ...
  • 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 ...
  • 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 ...
  • The geometry of fractional tangent bundle and applications 
    ALBU, Ion Doru; OPRIŞ, Dumitru (Geometry Balkan Press, 2009)
    The authors present the use of the revised fractional Riemann-Liouville derivative in the fractional tangent bundle of order k, TM ak, of a differential manifold M and the behavior of some objects under a change of local ...
  • The geometry of fractional osculator bundle of higher order and applications 
    ALBU, Ion Doru; NEAMŢU, Mihaela; OPRIŞ, Dumitru (Cornell University, 2007)
    Using the reviewed Riemann-Liouville fractional derivative we define the bundle Eak= Oscak(M) and highlight geometrical structures with a geometrical character. Also, we introduce the fractional osculator Lagrange space ...
  • The dynamical rigid body with memory 
    ALBU, Ion Doru; NEAMŢU, Mihaela; OPRIŞ, Dumitru (Cornell University, 2007)
    In the present paper we describe the dynamics of the revised rigid body, the dynamics of the rigid body with distributed delays and the dynamics of the fractional rigid body. We analyze the stationary states for given ...
  • Stochastic generalized fractional HP equations and applications 
    ALBU, I. D.; NEAMŢU, M.; OPRIŞ, D. (Cornell University, 2009)
    In this paper we established the condition for a curve to satisfy stochastic generalized fractional HP (Hamilton-Pontryagin) equations. These equations are described using Itˆo integral. We have also considered the case ...
  • Starea patrimoniului istoric din oraşul Chişinău 
    ALBU, Ion; ALBU, Dan (Universitatea Tehnică a Moldovei, 2020)
    A good part of the real estate in Chisinau included in the Register of Monuments of the Republic of Moldova is ruined day by day. About 80% of protected buildings require emergency rehabilitation, conservation and restoration. ...
  • Provocări ale dezvoltării economiei a Republicii Moldova: aspecte demografice 
    SÂRBU, Ion; ALBU, Ion (Academia de Studii Economice din Moldova, 2013)
    Sustainable economic growth of the Republic of Moldova depends on policies promoted by the governments and motivating citizens. Demographic constraints undermine the possibility of a sustainable economic growth for a long ...
  • On the discrete-continuous dynamical systems 
    OPRIS, D.; ALBU, I. D. (Universitatea “Al. I. Cuza” Iaşi, 1997)
    The main idea of our study is a direct treatise of the dynamical systems of discrete-continuous type our aim is to: formulate a discrete-continuous variational principle and deduce the discrete-continuous Euler-Lagrange ...