Browsing Colecția instituțională by Title

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  • Wind Energy 
    BOSTAN, Ion; GHEORGHE, Adrian; DULGHERU, Valeriu; SOBOR, Ion; BOSTAN, Viorel; SOCHIREAN, Anatolie (Springer Science+Business Media B. V., 2013)
    Wind energy has been used by mankind over thousands of years. For over 3,000 years the windmills have been used for pumping water or grinding (milling). And nowadays, in the century of information technologies, nuclear ...
  • Wind energy conversion plant 
    BOSTAN, Viorel; BOSTAN, Ion; DULGHERU, Valeriu; GUȚU, Marin; RABEI, Ion; VACULENCO, Maxim; CIOBANU, Radu; CIOBANU, Oleg (Romanian Inventors Forum, 2018)
    The invention relates to renewable energy conversion systems, in particular to wind energy conversion devices. The wind energy conversion plant comprises a tower, in which at different heights H1=f(Vnom) and, respectively, ...
  • Wind or Hydro Homo-Heteropolar Synchronous Generators: Equivalent Magnetic Circuit and FEM Analysis 
    DEACONU, Sorin Ioan; TOPOR, Marcel; TUTELEA, Lucian Nicolae; NUCĂ, Ilie; BURDUNIUC, Marcel (EDP Sciences, 2018)
    In an effort to introduce a low cost (PM less), low power electric wind or hydro generators, this paper reports on preliminary design aspects, equivalent magnetic circuit and 3D FEM analysis of a 2.5 KVA, 250-1000 rpm, ...
  • Wind system 
    DULGHERU, Valeriu; DUMITRESCU, Cătălin; DUMITRESCU, Liliana; RĂDOI, Radu; CRISTESCU, Corneliu; CIOBANU, Radu; CIOBANU, Oleg (Romanian Inventors Forum, 2024)
    The invention relates to wind energy conversion systems, and in particular to multi-rotor wind systems.
  • Wind turbine with horizontal axis with power control 
    BOSTAN, Viorel; BOSTAN, Ion; DULGHERU, Valeriu; CIOBANU, Radu; CIOBANU, Oleg; TOACĂ, A. (Technical University "Gheorghe Asachi" of Iași, 2021)
    Invenția se referă la energetică, și anume, la turbine eoliene cu ax orizontal, și poate fi utilizată pentru transformarea energiei eoliene în energie electrică, cu controlul puterii. Turbina eoliană cu ax orizontal cu ...
  • Wind turbine with vertical axis 
    BOSTAN, Viorel; BOSTAN, Ion; DULGHERU, Valeriu; RABEI, Ivan; GUȚU, Marin; CIOBANU, Radu; CIOBANU, Oleg (Technical University "Gheorghe Asachi" of Iași, 2021)
    Invenția se referă la energetică și anume la turbine eoliene cu ax vertical, și poate fi utilizată pentru transformarea energiei eoliene în energie electrică. Turbina eoliană cu ax vertical include turnul ...
  • Wind Unit with Vertical Combined Rotor 
    BOSTAN, I.; VIŞA, I.; DULGHERU, V.; CIUPERCĂ, R.; CRUDU, R.; GUŢU, M. (Romanian Inventors Forum, 2010)
    Small wind speeds which are characteristic for the Republic of Moldova do not allow efficient utilization of the classical wind working elements. To increase the conversion efficiency of wind energy at speeds a new wind ...
  • Wine level monitoring system for industrial cellars 
    CÎRNAȚ, Nadejda; IVANOVA, Anastasia; LUPAȘCU, Andrei; POPOV, Eliodor (Tehnica UTM, 2020)
    Winemaking culture originated at least three thousand years ago. However, its technical side has not drastically changed over time. This project combines modern technology with the ancient art of winemaking to improve ...
  • Wine waste as a source of non-conventional resources in the food industry 
    BOESTEAN, Olga; NETREBA, Natalia; GUREV, Angela; DRAGANCEA, Veronica (Galati University Press, 2021)
    The research is focused on the capitalization of phytonutrients from grape seeds in the form of natural food additives. The physico-chemical indicators of seeds were determined and the properties of the powder were studied ...
  • Wi–Fi 7 – noua inovație în sfera comunicațiilor wireless 
    SCLIFOS, Victor (Universitatea Tehnică a Moldovei, 2023)
    Lucrarea dată reflectă soluționarea necesității suprasolicitării conectării dispozitivelor la rețelele wireless prin implementarea unui standard nou 802.11be, cunoscut sub denumirea de Wi-Fi 7. Standardul dat include în ...
  • WO3/WS2 composite materials for gas sensor and energy storage applications 
    URSAKI, V.; GHIMPU, L.; MESTERCA, R.; BRANCOVEANU, O.; PRODANA, M.; ENACHESCU, M.; DIMITRACHI, S.; TIGINYANU, I. (Institutul de Fizică Aplicată, 2018)
    Transition metal binary compounds, especially oxides and chalcogenides, are material of choice for many applications. Particularly, tungsten trioxide (WO3) has been extensively studied due to its outstanding electrochromic ...
  • Women in STEM Education 
    POPESCU, Paula (Tehnica UTM, 2020)
    This paper presents the aim of women in the STEM field. The 21st-century demands have influenced the emergence of women in STEM. Equality in rights, educational reforms have influenced the appearance of women in more ...
  • Wooden park bench 
    Ecaterina, GUȚU; PODBORSCHI, Valeriu (Romanian Inventors Forum, 2023)
    The invention consists in creating the design of a wooden bench in a rustic style for parks, by using two states of wood: processed with modern methods and the one created by nature.
  • Work function and AC operating gas-sensitive films based on quaternary chalcogenides 
    TSIULYANU, D.; CIOBANU, M.; LIESS, H.-D. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2016)
    A study of quaternary alloys of As–S–Ge–Te was performed in order to assess their use in future gas sensors operating at room temperature. To elucidate the effect of tellurium, the quaternary compositions As2Te13Ge8S3 and ...
  • The work of deforming wear-proof iron-nickel plating in microsqueeging 
    JAVGUREANU, Vasile; GORDELENCO, Pavel (Universitatea de Stat „Alecu Russo“ din Bălţi, 2009)
    Rezultatele experimentale au demonstrat că cu ajutorul proprietăţilor fizico-mecanice in microvolum (A- lucru total pentru deformarea acoperirilor galvanice şi lucru pentru deformarea plastica An), corespund cu recomandările ...
  • The worldwide methodologies for assessing living standards 
    GOROBIEVSCHI, Svetlana; NĂDRAG, Lavinia (Addleton Academic Publishers, 2011)
    In this article the authors show how they determined the stages of development of the methodological concepts used for assessing the quality of life (QL) from a worldwide perspective. Using a wide range of theoretical and ...
  • X-ray diffraction study on pressure-induced phase transformations and the equation of state of ZnGa2Te4 
    ERRANDONEA, D.; KUMAR, R. S.; GOMIS, O.; MANJÓN, F. J.; URSAKI, V. V.; TIGINYANU, I. M. (AIP Publishing LLC, 2013)
    We report on high-pressure x-ray diffraction measurements up to 19.8 GPa in zinc digallium telluride (ZnGa2Te4) at room temperature. An irreversible structural phase transition takes place at pressures above 12.1 GPa and ...
  • X-ray induced luminescence in ZnIn2S4 and Zn3In2S6 
    MACHUGA, A.; RADU, R.; PINTEA, V.; ARAMA, E.; ZHITAR, V.; SHEMYAKOVA, T. (Institutul de Fizică Aplicată, AŞM, 2006)
    Compounds belonging to the system ZnxIn2S3 + x are of special interest due to their peculiar properties. Intensive luminescence and high photosensitivity in visible and ultraviolet range determine their potential applicability ...
  • X-Ray Luminescence in ZnIn2S4, CdGa2S4 and Zn3In2S6 
    MACHUGA, A.; RADU, R.; PINTEA, V.; ARAMA, E.; ZHITAR, V.; SHEMYAKOVA, T. (IEEE, 2007)
    Results related to investigation of X-ray induced luminescence spectra in ZnIn 2 S 4 , CdGa 2 S 4 and Zn 3 In 2 S 6 single crystals measured at 300 and 80 K are presented. The spectra mainly consist of one band with maximum ...
  • The yeast on the grape berry surface influenced by climatic factors 
    YAO, Meiling; WANG, Fei; BREAHNA, Elizaveta; ARPENTIN, Gheorghe (EDP Sciences, 2021)
    Republic Moldova is a country with long history of winemaking. Understanding the microorganism on the grape surface is very important to the winemaking process, and it's also a national strategy of development of the wine ...

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