Browsing 2019 by Title

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  • QoS intuionistic fuzzy decision-making in mobile cloud offloading systems based on extension theory 
    GUȚULEAC, Emilian; ZAPOROJAN, Sergiu; MORARU, Victor; SCLIFOS, Alexei (Tehnica UTM, 2019)
    The offloading process is one of the techniques used in mobile cloud computing (MCC) to enhance the capabilities of mobile devices by moving mobile data and computation applications to cloud platforms [1]. Cloud-path ...
  • Quantum electrical transport properties of topological insulator Bi0.83Sb0.17 nanowires 
    KONOPKO, Leonid; NIKOLAEVA, Albina; HUBER, Tito; ROGACKI, Krzysztof (Tehnica UTM, 2019)
    Recently a new class of insulator, namely, topological insulator (TI) [1], was proposed. A TI is a material with a bulk electronic excitation gap generated by the spin-orbit interaction, which is topologically distinct ...
  • Reliability of serial-parallel networks vs reliability of parallel-serial networks 
    LEAHU, Alexei; ANDRIEVSCHI-BAGRIN, Veronica (Tehnica UTM, 2019)
    In our paper we introduce some dynamic mathematical models to perform a comparative analysis of the reliability of two types of networks: serial-parallel and parallelserial. Cases are analyzed when the number of sub-networks ...
  • The role of humanitarian disciplines for engineers 
    LUNGU, Viorelia (Tehnica UTM, 2019)
    The mission of the university, in the Knowledge Society, is to produce, capitalize and transmit knowledge in order to adapt to the current demands and challenges of the society, but also to establish the competences necessary ...
  • Sensitivity investigation to formaldehyde of the vapors of nanostructured films from ZnO semiconductor oxides for medical application 
    LUPAN, Oleg; POCAZNOI, Ion; ABABII, Nicolai; CRETU, Vasilii; SECU, Iuliana (Tehnica UTM, 2019)
    Formaldehyde (СH2О) of 40% is widely used in medicine as a substance applied in processes for sterilization of bone grafts for further use as implants. The efficiency of sterilization depends on the amount of СH2О remaining ...
  • Stochastic optimal control of a two-dimensional dynamical system 
    LEFEBVRE, Mario (Tehnica UTM, 2019)
    In this paper, exact and explicit solutions will be found in particular cases by making use of the method of similarity solutions to solve the partial differential equation satisfied by the value function.
  • Synthesis of the auto-tuned pid controller to the inertial object 
    BALABANOV, Anatolii; IZVOREANU, Bartolomeu; POTLOG, Mihail; FIODOROV, Ion; COJUHARI, Irina; MORARU, Dumitru (Tehnica UTM, 2019)
    In the paper, it was developed the mechanism for adaptation of the transfer coefficient of PID controller to the model of object with inertia first order and time delay; schema for simulation of the control system with ...
  • Synthesis of the PID controller to the system with maximum stability degree based on the genetic algorithm 
    COJUHARI, Irina; IZVOREANU, Bartolomeu; FIODOROV, Ion; MORARU, Dumitru; LISNIC, Inga (Tehnica UTM, 2019)
    The control problem in the various industrial applications is one of the most important problem, on which depends the high performance of the automatic control system. At the automation of the industrial processes in a ...
  • The theory of inventive problem solving 
    MAFTEI, Vitalie (Tehnica UTM, 2019)
    A modern engineer should have a fairly serious set of system competencies. Today, in the qualification of an engineer, knowledge and skills in ensuring the relations of production with the market are valued, in the future ...
  • TiO2/ZnO columnar heterostructures 
    MAGARIU, Nicolae; PAUPORTÉ, Thierry; LUPAN, Oleg (Tehnica UTM, 2019)
    In this work we synthesized TiO2/ZnO columnar films and studied their characteristics, including the sensor structures based on zinc oxide doped with different impurities. The effects of nano-heterogeneous formation of ...
  • Tri-axial square helmholtz coil for testing satellite stabilization with magnetorquers 
    BOSTAN, Ion; BOSTAN, Viorel; SECRIERU, Nicolae; MELNIC, Vladimir; ILCO, Valentin; MARTÎNIUC, Alexei; VĂRZARI, Vladimir (Tehnica UTM, 2019)
    The paper describes the design, construction and initial testing of a magnetic field simulator consisting of Helmholtz coils, for testing under laboratory conditions the system for determining and controlling the attitude ...
  • Virtual classroom in the digital age: concept, product and applicability 
    BURLACU, Natalia (Tehnica UTM, 2019)
    Given paper presents itself as a descriptive ascertaining study that comes with the analysis of the phenomenon of virtual classrooms' using at the different educational levels and / or in the different educational situations ...

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