Browsing 2020 by Title

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  • Birefringence and exciton spectra of CuAlSe2 and CuAlS2 crystals 
    MAŞNIC, Alisa (Tehnica UTM, 2020)
    The excitonic reflection spectra of CuAlS2 and CuAlSe2 crystals were measured at the temperature of 10 K for polarizations E||c and Ec. Ground and excited states of the excitons were found out in the investigated spectra. ...
  • Challenges of nanotechnologies and some reliability aspects 
    BĂJENESCU, Titu-Marius I.; BÂZU, Marius I. (Tehnica UTM, 2020)
    The article focuses on the analysis of different nanoelectronic architectures with special design rules, taking into account the reliability of the future product. In the next decade, the reliability will play an even ...
  • Characteristics of quantum dots laser subjected to conventional and filtered optical feedback 
    RUSU, Spiridon; CHISTOL, Vitalie; TRONCIU, Vasile (Tehnica UTM, 2020)
    The quantum dots laser under the influence of conventional and filtered feedback is analyzed in the framework of the extended Lang-Kobayashi rate equations. The feedbacks comes from two separate branches: conventional and ...
  • Charge transport and gaz sensing peculiarities of nanocrystalline and amorphous tellurium films 
    TSIULYANU, Dumitru; CIOBANU, Marina; MOCREAC, Olga; AFANASIEV, Andrei (Tehnica UTM, 2020)
    Nanocrystalline and amorphous tellurium thin films have been prepared and their both DC and AC electrical conductivity was investigated to receive the information concerning mechanisms of charge transport at different ...
  • Combined automated installation deployment for milk cooling 
    DAICU, Anatolie; VOLCONOVICI, Augustin; CHIRSANOVA, Ala; VOLCONOVICI, Onorin; SLIPENCHI, Victorin; VOLCONOVICI, Ina (Tehnica UTM, 2020)
    The work was aimed to develop the structural and functional diagram, automatic graphs and operating algorithms of the natural and artificial cooling receiver/accumulator for milk chilling in the capacitive cooler with low ...
  • Density of states for an electronic spectrum with a forbidden band 
    CASIAN, Anatolie; SANDULEAC, Ionel (Tehnica UTM, 2020)
    Quasi-one-dimensional organic crystals with high electrical conductivity at room temperature are prospect materials for thermoelectric applications. However, usually at some low temperature these materials manifest ...
  • Detection and quantification of mycotoxigenic fungi in maize by real-time PCR 
    MITINA, Irina; MITIN, Valentin; TUMANOVA, Lidia; ZGARDAN, Dan; STURZA, Rodica (Tehnica UTM, 2020)
    The article focuses on real-time PCR detection and quantification of Fusarium spp., potential producer of class B fumonisin mycotoxins in mature corn kernels using primers designed to genes FUM1 and FUM6, involved in ...
  • Digital twin for PV module fault detection 
    VALEVICH, Sergey; ASIMOV, Roustam; KRUSE, Ingmar; ASIPOVICH, Vitaly (Tehnica UTM, 2020)
    This paper is focused on photovoltaic (PV) installation fault detection techniques. Three methods of PV module fault detection were proposed, implemented, and tested on real PV plant located in Nürnberg, Germany. Proposed ...
  • Drying installation for granular products in the suspension layer 
    BALAN, Mihail; BERNIC, Mircea; ŢISLINSCAIA, Natalia (Tehnica UTM, 2020)
    One of the main problems of wet plant products drying processes is the long duration of thermal tartarization, which consequently leads to the diminution of the quality indices. This problem is exacerbated in the case of ...
  • Elaboration of the platform for flexoelectric investigation of GaN microtubes 
    MONAICO, Elena; TRIFAN, Catalin; MONAICO, Eduard; TIGINYANU, Ion (Tehnica UTM, 2020)
    In this paper, the design and elaboration of a cost-effective technological process for the fabrication of the platform for the study of flexoelectric properties of GaN microtubes with the diameter of 2 - 5 μm and the ...
  • Energy use pattern of selected commercial poultry farms in Ogun State, Nigeria 
    BABALOLA, Ayoola A.; SANUSI, Abisola O.; ADETIFA, Babatunde O.; ADEYEMI, Hezekiah O.; OLATUNDE, Olanrewaju B. (Tehnica UTM, 2020)
    Energy represents an important component of agriculture and essential to the sustainable production of poultry meat and egg. Despite several efforts at ensuring self-sufficiency in the local production of poultry products ...
  • Experimental observations on efficiency difference between helical and straight bladed vertical axis wind turbines 
    RABEI, Ivan (Tehnica UTM, 2020)
    While in operation, the straight bladed vertical axis wind turbines (VAWTs) are affected by the variations in loadings that result in torque and power oscillations. This problem is considered to be solved by adopting helical ...
  • Features of stress-strain behaviour of basalt fibre reinforced concrete beam structures 
    RUSU, Ion; KHUDOBYCH, Artur; TSELIKOVA, Alina; KARPIUK, Vasyl; KARPIUK, Irina; ZAVOLOKA, Michael (Tehnica UTM, 2020)
    The paper deals with the results of multi-method test studies of the bearing capacity, stress-strain behaviour and crack resistance of the 2000х200х100 mm reinforced concrete beams and basalt fibre reinforced concrete beams ...
  • Fuzzy functions of expert knowledge encapsulated within statistical workflow data 
    CARBUNE, Viorel (Tehnica UTM, 2020)
    Taking over the skills of the human expert will make it possible to develop decision-making algorithms in conditions of uncertainty for industrial applications. Fuzzy sets are used in different fields and estimating ...
  • Geotechnical properties of lateritic soil stabilized with cement and pulverized wood charcoal 
    ADERINLEWO, Olufikayo; SORUNKE, Olayiwola; AFOLAYAN, Abayomi; TANIMOLA, Moses (Tehnica UTM, 2020)
    This study investigates the geotechnical properties of lateritic soil stabilized with pulverized wood charcoal (PWC) in comparison with the same soil stabilized with cement which is considered to be the best stabilizer. ...
  • Grounds stabilized with organic binders 
    BRAGUŢA, Eugeniu (Tehnica UTM, 2020)
    The paper presents the enzymatic stabilizers effect on grounds in the compaction process by vibration. It has been intended, by specific rheological modeling of the ground mixtures with organic additives, as well as by ...
  • The influence of biotechnological strategies on nutritional aspects of bakery products 
    SIMINIUC, Rodica (Tehnica UTM, 2020)
    Fermented products based on sourdough show many advantages in comparison with fermented products with commercial yeast. The research was focused on obtaining sourdough with spontaneous flora, obtaining bread samples with ...
  • Influence of enzymatic treatment and storage temperature on the aromatic composition of Viorica wines 
    VLADEI, Natalia (Tehnica UTM, 2020)
    The subjects of this paper are the grapes and wines obtained from local selection variety Viorica from Republic of Moldova. Following the spectrophotometric analysis of grape juice, significant differences between the ...
  • Influence of maceration duration on Viorica wines quality 
    VLADEI, Natalia (Tehnica UTM, 2020)
    The subject of the research refers to experimental wines obtained from local selection grape variety Viorica, which were macerated for 4, 8 or 12 hours at 10, 15 and 20 0C. The maceration duration had a positive influence ...
  • Informatics security assessmentin the Republic of Moldova 
    BOLUN, Ion; CIORBĂ, Dumitru; ZGUREANU, Aureliu; BULAI, Rodica; CĂLIN, Rostislav; BODOGA, Cristina (Tehnica UTM, 2020)
    The topicality of systemic research on informatics (IT) security in the Republic of Moldova is argued. Based on international practices, a set of 24 indicators (aspects) is defined for the incipient assessment of the state ...

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