Browsing Journal of Engineering Science by Issue Date

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  • A fuzzy logic approach for mathematical modeling of the extraction process of bioactive compounds 
    GHENDOV-MOŞANU, Aliona; STURZA, Rodica; CHERECHEŞ, Tudor; PATRAS, Antoanela (Technical University of Moldova, 2019)
    The aim of the present study was to optimize the extraction process of bioactive compounds from berries and wastes from the agro-food industry (grape marc).Mathematical models of the extraction process of biologically ...
  • Factors that determine the shelf life of a butter-like spread based on walnut oil 
    RADU, Oxana; BAERLE, Alexei; TATAROV, Pavel; POPESCU, Liliana (Technical University of Moldova, 2019)
    The article describes the manufacturing stages for a new functional product that can enrich human diet with essential lipids – spread based on walnut oil. Due to the fact that its content of polyunsaturated fatty acids is ...
  • Performance modeling of network defense in breadth systems by matrix rewriting SRN with fuzzy parameters 
    GUŢULEAC, Emilian; ZAPOROJAN, Sergiu; MORARU, Victor; SCLIFOS, Alexei (Technical University of Moldova, 2019)
    We have defined in this paper, a new kind of stochastic reward network (SRN) by introducing matrix attributes and fuzzy parameters of timed transitions and of rewriting rules, called MFRSRN, allowing the dynamic marking-dependent ...
  • Application of pareto principle in monitoring walnuts quality at storage 
    SANDULACHI, Elisaveta; BOAGHI, Eugenia; TATAROV, Pavel; RESITCA, Vladislav (Technical University of Moldova, 2019)
    This paper presents two case studies of walnut quality assessment at room temperature storage of 20 ± 20C. The conformity of the Juglans regia L. walnuts, the Calarasi variety, (harvest 2015) and Cogalniceanu variety ...
  • Quo vadis robotics? 
    BĂJENESCU, Titu-Marius I. (Technical University of Moldova, 2019)
    Robotics is an extremely dynamic field with thriving advancement in its technology. The capabilities of trusted robots will grow and evolve over time. Robots will be able to explain what they do and why. This will enable ...
  • Theoretic approaches to substantiate shelf life capacity of butter and spreads 
    BOCHAROVA-LESKINA, Anna; VERBYTSKYI, Sergii (Technical University of Moldova, 2019)
    The analysis of scientific information on the theoretical aspects and practical features of long-term freezing storage of butter and spreads is carried out. Means of mathematical modeling are substantiated, allowing ...
  • Tartaric stabilization of grape juice with ionic exchange resins 
    GOLUBI, Roman (Technical University of Moldova, 2019)
    The limpidity of grape juice is a quality requirement asked at placing in trade networks, because consumers prefer a drink with clear transparency. A specific phenomenon is the formation of tartaric crystals during long ...
  • Management of investigating the effect of blasting and impact load in various structures 
    BEYKZADE, Mohammad; BEYKZADE, Sepide (Technical University of Moldova, 2019)
    Increasing the number of explosive threats on the structures is a warning in the direction of safety. The design of structures against the blast loads in the past has been limited to military buildings and so on. Now, with ...
  • Estimation of athlete coordination abilities based on the reproducibility analysis of the electromyographic patterns of complex coordination movements 
    DAVYDOVA, Nadezhda; VASIUK, Valery; OSIPOV, Anatoly; MIKHUTA, Igor; KHOKHOLKO, Anna; MEZHENNAYA, Marina; DAVYDOV, Maksim (Technical University of Moldova, 2019)
    Coordination abilities are the integral components in estimation of an athlete's physical preparedness and movement capabilities. The paper describes an original approach to the estimation of athletes coordination abilities ...
  • Biologically active substances from Linaria Genistifolia (L.) Mill and their potential usage in the ecological agriculture 
    GUREV, Angela; MASHCENKO, Natalia; BOROVSKAIA, Ala; SHUBINA, Victoria (Technical University of Moldova, 2019)
    The article starts with literature review on secondary metabolites, namely the iridoids contained in Linaria species (Scrophulariaceae). It describes the biological activity of the iridoid glycosides; the importance and ...
  • The methodological aspects of using real-time polymerase chain reaction (RT-PCR) in Brettanomyces/Dekkera detection 
    MITINA, Irina; ZGARDAN, Dan; STURZA, Rodica; SCUTARU, Iurie (Technical University of Moldova, 2019)
    Wine spoilage could be caused by a lot of genera and species of yeasts. One of the most damaging is Brettanomyces/Dekkera which causes severe quality problems in the wine industry. Timely detection of these organisms in ...
  • The roads of the future 
    PLĂMĂDEALĂ, Vasile; PLAMADEALA, Ana (Technical University of Moldova, 2019)
    Infrastructure development is a global priority. Most countries are investing enormous financial resources on high-quality, safe and sustainable roads. Taking into account the pace of technology development, it is currently ...
  • Analysis of modern computer technologies used for virtual fitting of clothes 
    PASHKEVYCH, Kalina; LAVRENKO, Maryna; GERASYMENKO, Olena (Technical University of Moldova, 2019)
    The aim of the research is to analyze modern services used for online selection of clothes of the desired size, and to determine the effective ways of their implementation. A comparative analysis of functional services on ...
  • Comparative analysis of variable refrigerant flow systems and chiller-fan coil system for office buildings 
    GUŢUL, Vera I.; COLDA, Iolanda; GUŢUL, Vera G.; USTUROI, Liubovi (Technical University of Moldova, 2019)
    The paper is dedicated to the technical and economic analysis of air-conditioning solutions for office buildings. În this paper two air conditioning systems were compared: the variable refrigerant flow (VRF) system and the ...
  • Emerging technologies: 5G and IoT 
    BĂJENESCU, Titu-Marius I. (Technical University of Moldova, 2019)
    The fifth generation mobile network 5G is a set of emerging global telecommunications standards, generally using high-frequency spectrum, to offer network connectivity with reduced latency and greater speed and capacity ...
  • Calculation the service waiting probability with self-similar network traffic 
    LOZHKOVSKYI, Anatolii (Technical University of Moldova, 2019)
    Calculation of the service quality characteristics in a single-channel system with queue for the packet network is often reduced to the determination of the Hurst exponent for self-similar traffic, after which using the ...
  • Changes in consumer properties of new grain crispbreads based on spelt during storage 
    MARDAR, Maryna; ZNACHEK, Rafaela; MACARI, Artur (Tehnica UTM, 2019)
    The changes that occur with the organoleptic, physicochemical, and microbiological performance of new grain crispbreads based on spelt with the inclusion of enriching supplements in the process of storage. Types of packing, ...
  • Mathematical modelling of teeth contact in precessional transmission 
    BOSTAN, Viorel; BOSTAN, Ion; VACULENCO, Maxim; ŢOPA, Mihail (Tehnica UTM, 2019)
    The article deals with the development of the 2K-H precessional toothed gear with convex-concave contact of the teeth. The teeth flanks of the satellite are described in the circular arc as well as the central wheels - ...
  • Management of cement-concrete road pavement structure 
    MISHUTIN, A. V.; ZAVOLOKA, M. V.; KINTIA, L. (Tehnica UTM, 2019)
    The aim of the research is to study the effect of operating factors on the pavement and optimize the composition of the modified additive for controlling the structure of concrete. The choice of modifiers for concrete ...
  • Negative impact of railway transport on the ambient environment 
    PLĂMĂDEALĂ, Vasile; SLOBODEANIUC, Stanislav (Tehnica UTM, 2019)
    Unfortunately, most of the technologies applied and currently used by mankind, to a lesser or greater degree, negatively influence and lead to the degradation and degeneration of the planetary ecosystem, with rail transport ...

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