Articole ştiinţifice: Recent submissions

  • A posteriori error analysis for elliptic variational inequalities of the second kind 
    BOSTAN, V.; HAN, W.; REDDY, B. D. (Elsevier, 2003)
    This chapter derives the posteriori error estimates for the finite element approximation of elliptic variational inequalities of the second kind, by using the duality theory in convex analysis. An example in which the ...
  • Spectrophotometric determination of polyphenolic and protein content of young white wines in the Moldova area 
    HORTOLOMEU, Andreea; SCUTARU, Iurie; ARSENI, Alexandra; STURZA, Rodica; NISTOR, Ileana Denisa (Alma Mater Publishing House of the University of Bacãu, Romania, 2021)
    In this paper, the processes of protein stability were treated in order to identify the level of protein substances as well as the polyphenolic compounds in white wines. For an optimal determination of the oxidation degree, ...
  • Gas-sensing features of nanostructured tellurium thin films 
    TSIULYANU, Dumitru (Beilstein Institute for the Advancement of Chemical Sciences (Germany), 2020)
    Nanocrystalline and amorphous nanostructured tellurium (Te) thin films were grown and their gas-sensing properties were investigated at different operating temperatures with respect to scanning electron microscopy and X-ray ...
  • Functional nanostructures for electronics, spintronics and sensors 
    SIDORENKO, Anatolie S. (Beilstein Institute for the Advancement of Chemical Sciences, Germany, 2020)
    Nanotechnology and functional nanostructures, exciting trends of the 21st century, are topics that have penetrated and influenced nearly all areas of human activity: from microelectronics to biology, from aerospace to ...
  • Technologies of capture and storage of energy from renewable sources 
    CRISTESCU, Corneliu; DUMITRESCU, Catalin; DRUMEA, Petrin; DULGHERU, Valeriu; KEDZIA, Krzysztof (HERVEX, 2016)
    The article presents some considerations general related to renewable energies, and some technologies for capture, conversion and storage of renewable energies, practiced globally, emphasizing the need for technical solutions ...
  • Selection of a Solution When Using Axiomatic Design 
    SLĂTINEANU, Laurenţiu; DODUN, Oana; COTEAŢĂ, Margareta; DULGHERU, Valeriu; DUŞA, Petru; BANCIU, Felicia; BEŞLIU, Irina (MATEC Web of Conferences, 2017)
    Over the years, the importance of the creativity inclusively in the field of design activities was highlighted. In accordance with the opinions of certain researchers, the divergent thinking could contribute to the increase ...
  • Reducing conventional fuel consumption by implementing hybrid energy production systems 
    DUMITRESCU, C.; DULGHERU, V.; CRISTESCU, C.; DUMITRESCU, L.; BLEJAN, M.; RADOI, R. (University Politehnica Timisoara, 2017)
    Benefiting from significant renewable energy resources, Romania has made great strides in recent years in the field of converting solar and wind energy; in addition to these, hydraulic energy has been exploited for several ...
  • New evolutions, directions and trends in conversion and storage of renewable energies 
    CRISTESCU, Corneliu; DUMITRESCU, Liliana; DULGHERU, Valeriu; DUMITRESCU, Catalin (SGEM World Science, 2018)
    The special resources of renewable energy identified in Romania have generated far more extensive concerns and research on their capture, storage and use. The first part of this paper presents a couple of renewable energy ...
  • Metoda asocierii organice a structurilor elementare de sisteme funcţionale metoda logic-determinată de creativitate tehnică şi înţelegere a procesului de creaţie intuitivă a unor invenţii deja elaborate 
    CANTEMIR, Lorin; NIŢUCĂ, Costică; CARCEA, Maria; DULGHERU, Valeriu (Universitatea de Stat „Alecu Russo“ din Bălţi, 2009)
    L‟article est consacré à une méthode inédite de stimulation de l‟activité créative technique; les auteurs introduisent les notions d‟état spatial et d‟état temporel et prouvent que pour obtenir de nouveaux effets par ...
  • Integrated irrigation system with photovoltaic panels and wind turbine 
    BOSTAN, Ion; BOSTAN, Viorel; DULGHERU, Valeriu; SOBOR, Ion (Technical Sciences Academy of Romania, 2017)
    The issue of global food security is amplified by the rapid increase of the population, the climate change that is manifested by the increase of the severity and the variability of the climate. The only safe means of ...
  • Increasing Energy Efficiency and Optimizing the Operation of Systems That Produce Clean Energy from Renewable Sources 
    CRISTESCU, Corneliu; DUMITRESCU, Cătălin; DULGHERU, Valeriu; POPESCU, Teodor Costinel (Hidraulica Magazine, 2017)
    This paper presents some general issues regarding the development of research concerns in the field of renewable energy worldwide, as well as some research directions for increasing the efficiency of renewable energy ...
  • Dynamic model elaboration for the planetary-precessional gear reducer against vibration 
    DULGHERU, Valeriu; MALCOCI, Iulian (EDP Sciences, 2018)
    The purpose of modern-day machines in general and gear-box in particular is to carry out needs-based on maintenance, good working conditions and to minimize the repair and other servicing downtimes and disfunctionalities. ...
  • Development of technical creativity in higher education 
    SLATINEANU, Laurentiu; DULGHERU, Valeriu; BANCIU, Felicia; COTEATA, Margareta; NAGIT, Gheorghe; BESILIU, Irina; DODUN, Oana (ToKnowPress, 2016)
    Technical higher education should provide to student/future engineer scientific and technical knowledge and skills for understanding and using various technical equipment, and also for designing and developing new or ...
  • Blended teaching and learning approach applied to electrical and computer engineering education 
    ADĂSCĂLIŢEI, Adrian; ARĂDOAIEI, Sebastian Teodor; TODOS, Petru Ion; DULGHERU, Valeriu (Technical Sciences Academy of Romania, 2020)
    The article presents a review of the current e-pedagogical methods to develop Electrical and Computer Engineering Education (ECEE) Study Programs using Blended an Learning (BTL). Engineering crucial experimental competences ...
  • Proprietăţile fizice ale straturilor de ZnO preparate pe Si prin metoda hidrotermală 
    RAEVSCHI, Simion; GORCEAC, Leonid; BOTNARIUC, Vasile; BRANIŞTE, Tudor; VATAVU, Sergiu (Universitatea de Stat din Moldova, 2020)
    Straturi subțiri, de nucleație și proprii, de ZnO au fost sintetizate pe Si prin metoda hidrotermală din soluțiile compușilor zincului folosindu-se solvenții: apă, apă + etanol, apă + metanol, apă + propanol, apă + acetonă, ...
  • Unele aspecte privind materialele de substituţie şistimulare a osteogeneze 
    NICOLAU, Gheorghe; BARBUŢ, Mihail; BODRUG, Valentina; MARINA, Iurie; GUŢUŢUI, Daniel; ENACHE, Mihai (Asociaţia stomatologilor din Republica Moldova, 2008)
    În stomatologia practică se întrebuinţează materiale pentru regenerarea tisulară ghidată în componenţa cărora intră, colagen, hidroxiapatită, tri calciu fosfat ş.a. În 18 cazuri de implantare dentară am utilizat materialul ...
  • Rolul pasivării în prelucrarea suprafeţelor implantelor dentare 
    NICOLAU, Gheorghe; MARINA, Iurie; ENACHE, Mihai; BARBUŢ, Mihai (Asociaţia stomatologilor din Republica Moldova, 2008)
    La unele metale trecerea în stare ionică, din reţea în soluţie poate stagna, atunci cînd ele se găsesc în contact cu un electrolit puternic oxidant sau la o anumită valoare a polarizării. Fenomenul este explicat prin ...
  • Binary Superimposed Gratings Formed by e-Beam Recording in Amorphous AsS Films 
    SERGEEV, S. A.; IOVU, M. S.; ENACHI, M. A. (American Scientific Publishers, 2014)
    Binary unidirectional superimposed diffraction gratings with grating periods of 0.9 μm and 1 μm were formed in amorphous AsS films by e-beam recording. The influence of recording sequence of index superimposed gratings on ...
  • Aplicarea experimentală a implantelor din titan cu suprafaţa nanostructurată la animale de laborator (date preventive) 
    NICOLAU, Gheorghe; BARBUŢ, Mihail; BODRUG, Valentina; MARINA, Iurie; ENACHE, Mihai (Asociaţia stomatologilor din Republica Moldova, 2009)
    Acest studiu are ca obiectiv evaluarea biocompatibilităţii şi osteointegrării titanului cu suprafaţa nanostructurată. Pe un lot de 12 şobolani (Linia Vistar) sa introdus în unghiul mandibulei implante din titan cu suprafaţa ...
  • Analiza biofizică a sialoliţilor glandelor salivare submandibulare 
    ŞCERBATIUC, Dumitru; LEHTMAN, Sofia; ENACHI, Mihai (Academia de Ştiinţe a Moldovei, 2012)
    Autorii prezintă rezultatele studierii compoziţiei diverselor regiuni a calculilor glandelor submandibulare pentru aprecierea mecanismelor etio-patogenetice potenţiale ale mineralizării în caz de sialolitiază. Summary ...

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