UTM: Recent submissions

  • Magnetic properties of GaAs/NiFe coaxial Core-Shell structures 
    MONAICO, Eduard V.; MORARI, Vadim; KUTUZAU, Maksim; URSAKI, Veaceslav V.; NIELSCH, Kornelius; TIGINYANU, Ion M. (Multidisciplinary Digital Publishing Institute (MDPI), 2022)
    Uniform nanogranular NiFe layers with Ni contents of 65%, 80%, and 100% have been electroplated in the potentiostatic deposition mode on both planar substrates and arrays of nanowires prepared by the anodization of GaAs ...
  • Ferromagnetic core-shell coaxial nanostructures on gallium arsenide substrates 
    MONAICO, E. V.; MORARI, V.; KUTUZAU, M.; URSAKI, V. V.; NIELSCH, K.; TIGINYANU, I. M. (House of the Romanian Academy, 2022)
    Fe and NiFe coatings have been electrochemically deposited on GaAs nanowires arrays prepared by electrochemical etching of (001) and (111)B GaAs substrates in a 1M HNO3 electrolyte. It was found that deposition in galvanostatic ...
  • Electrochemical deposition of ferromagnetic ni nanoparticles in InP nanotemplates fabricated by anodic etching using environmentally friendly electrolyte 
    MOISE, Calin Constantin; MIHAI, Geanina Valentina; ANICAI, Liana; MONAICO, Eduard V.; URSAKI, Veaceslav V.; ENACHESCU, Marius; TIGINYANU, Ion M. (Publisher: Multidisciplinary Digital Publishing Institute (MDPI), 2022)
    Porous InP templates possessing a thickness of up to 100 µm and uniformly distributed porosity were prepared by anodic etching of InP substrates exhibiting different electrical conductivities, involving an environmentally ...
  • Nanosensors based on a single ZnO:eu nanowire for hydrogen gas sensing 
    LUPAN, Cristian; MISHRA, Abhishek Kumar; WOLFF, Niklas; DREWES, Jonas; KRÜGER, Helge; VAHL, Alexander; LUPAN, Oleg; PAUPORTÉ, Thierry; VIANA, Bruno; KIENLE, Lorenz; ADELUNG, Rainer; DE LEEUW, Nora H; HANSEN, Sandra (American Chemical Society, 2022)
    Fast detection of hydrogen gas leakage or its release in different environments, especially in large electric vehicle batteries, is a major challenge for sensing applications. In this study, the morphological, structural, ...
  • Min(max-PSD) and max(min-PSD) as lifetime distributions in network's reliability 
    LEAHU, Alexei; ANDRIEVSCHI-BAGRIN, Veronica; CIORBĂ, Dumitru; FIODOROV, Ion (Sciendo, 2022)
    In our paper we describe the corresponding dynamic mathematical models to perform a comparative analysis of the reliability of two types of networks: serial-parallel and parallel-serial when the number of subnetworks is ...
  • Protein-corona formation on aluminum doped zinc oxide and gallium nitride nanoparticles 
    CIOBANU, Vladimir; RONCARI, Francesco; CECCONE, Giacomo; BRANISTE, Tudor; PONTI, Jessica; BOGNI, Alessia; GUERRINI, Giuditta; CASSANO, Domenico; COLPO, Pascal; TIGINYANU, Ion (SAGE Publications, 2022)
    The interaction of semiconductor nanoparticles with bio-molecules attracts increasing interest of researchers, considering the reactivity of nanoparticles and the possibility to control their properties remotely giving ...
  • Culture system of trees fruit production efficiency in relation to density of planting trees 
    BALAN, Valerian (2009)
    The fruit-growing system is determined by the methods and technological tools by which is achieved using soil as a main source of production. The concept of fruit-growing system is used to integrate the relationships between ...
  • The role of hydrogen solutions in the energy transition phase in Romania 
    GOLOVANOV, Nicolae; GHEORGHE, Ștefan; MOGOREANU, Nicolae (General Association of the Engineers in Romania (AGIR), 2022)
    Concerns about reaching the target of decarbonisind of energy systems by 2050 have led to hydrogen coming to the attention of energy specialists as a primary source of energy both as fuel in power plants and as input into ...
  • Sustainable energy transition roadmap to 2050 for Republic of Moldova 
    EFREMOV, Cristina; CERNEI, Mihai; LEU, Vasile (General Association of the Engineers in Romania (AGIR), 2022)
    The present paper is entirely devoted to the conceptual elements of a roadmap for the energy transition in the Republic of Moldova that can be developed exclusively in the elaboration of the Energy Strategy toward 2050. ...
  • Ultrathin tin sulfide field-effect transistors with subthreshold slope below 60 mV/decade 
    DRAGOMAN, Mircea; DINESCU, Adrian; AVRAM, Andrei; DRAGOMAN, Daniela; VULPE, Silviu; ALDRIGO, Martino; BRANISTE, Tudor; SUMAN, Victor; RUSU, Emil; TIGINYANU, Ion (Institute of Physics, 2022)
    In this paper, we present for the first time a field-effect-transistor (FET) having a 10 nm thick tin sulfide (SnS) channel fabricated at the wafer scale with high reproducibility. SnS-based FETs are in on-state for ...
  • Bastion al gândirii hortiviticole 
    BALAN, Valerian (2013)
    Universitatea Agrară de Stat din Moldova în acest an marchează 80 de ani de la fondare (1933). Este un drum glorios al acestei instituţii didactice agronomice, care a contribuit şi contribuie atât la formarea intelectualităţii ...
  • The microwave properties of tin sulfide thin films prepared by RF magnetron sputtering techniques 
    DRAGOMAN, Mircea; ALDRIGO, Martino; DINESCU, Adrian; IORDANESCU, Sergiu; ROMANITAN, Cosmin; VULPE, Silviu; DRAGOMAN, Daniela; BRANISTE, Tudor; SUMAN, Victor; RUSU, Emil; TIGINYANU, Ion (IOP Publishing, 2022)
    In this paper we present the microwave properties of tin sulfide (SnS) thin films with the thickness of just 10 nm, grown by RF magnetron sputtering techniques on a 4 inch silicon dioxide/high-resistivity silicon wafer. ...
  • Models of research, development and innovation systems from the perspective of complexity theory: a case study of the Republic of Moldova 
    CUJBA, Rodica; FILIP, Florin Gheorghe (Success Culture Press, 2022)
    Complexity Theory allows to better understand how some phenomena that surround us and are difficult to describe through traditional approaches of a single scientific domain appear, evolve and adapt. These phenomena have ...
  • Methods of foliar surface determination along the ontogenetic cycle on apple trees 
    BALAN, Valerian (2010)
    his study aimed at determining the evolution of foliar surface in different types of annual branches of apple using different methods of foliar surface determination. The investigations were carried out in the intensive ...
  • Formarea coroanei după sistemul „Fus Subţire” în plantaţiile intensive de cireş 
    BALAN, Valerian (2015)
    In modern orchards of cherry trees are planted in high density with small trees and crown shapes such convenient time to harvest the fruits manual. The time thin consists of well-developed central axis that forms spiral ...
  • Dynamic optimisation of elevators using biometric identification systems 
    COZAC, Eugeniu; GURA, Dmitry; BITYUTSKIY, Alexey; KISELEV, Sergei; REPEVA, Anastasia (Inderscience Publishers, 2022)
    The research focused on developing a real-time monitoring algorithm for elevators in residential towers. The study employed methods, models, and software tools to build intelligent real-time decision-making systems. A model ...
  • Radicals and idempotents II 
    COJUHARI, E. P.; GARDNER, B. J. (Taylor and Francis, 2022)
    Continuing the study of interactions between radical theory and corners, subrings of the form eAe, where e is an idempotent of a ring A, we examine radicals characterized by the presence or absence of idempotents of various ...
  • AUltrathin tin sulfide field-effect transistors with subthreshold slope below 60 mV/decadeero-TiO2 prepared on the basis of networks of ZnO tetrapods 
    CIOBANU, Vladimir; URSAKI, Veaceslav V.; LEHMANN, Sebastian; BRANISTE, Tudor; RAEVSCHI, Simion; ZALAMAI, Victor V.; MONAICO, Eduard V.; COLPO, Pascal; NIELSCH, Kornelius; TIGINYANU, Ion M. (Multidisciplinary Digital Publishing Institute (MDPI), 2022)
    In this paper, new aeromaterials are proposed on the basis of titania thin films deposited using atomic layer deposition (ALD) on a sacrificial network of ZnO microtetrapods. The technology consists of two technological ...
  • The hydrogen role in the transition towards 100% energy from renewable sources 
    BRAGA, Dumitru (General Association of the Engineers in Romania (AGIR), 2022)
    The last few decades are marked by an upward trend of interest in the use of hydrogen for energy purposes. This interest is due to the belief that hydrogen can contribute to the energy transition towards 100% renewable ...
  • Decarbonation of the national economy of the Republic of Moldova by electrification and use of renewable energy sources 
    BRAGA, Dumitru (Politechnica University of Bucharest, 2022)
    In this paper, we propose to present the concept and roadmap for decarbonation of the national economy of the Republic of Moldova until 2070. In this order, it is presented technologies for electricity generation and use, ...