Articole ştiinţifice: Recent submissions

  • The geometry of fractional osculator bundle of higher order and applications 
    ALBU, Ion Doru; NEAMŢU, Mihaela; OPRIŞ, Dumitru (Cornell University, 2007)
    Using the reviewed Riemann-Liouville fractional derivative we define the bundle Eak= Oscak(M) and highlight geometrical structures with a geometrical character. Also, we introduce the fractional osculator Lagrange space ...
  • The dynamical rigid body with memory 
    ALBU, Ion Doru; NEAMŢU, Mihaela; OPRIŞ, Dumitru (Cornell University, 2007)
    In the present paper we describe the dynamics of the revised rigid body, the dynamics of the rigid body with distributed delays and the dynamics of the fractional rigid body. We analyze the stationary states for given ...
  • Stochastic generalized fractional HP equations and applications 
    ALBU, I. D.; NEAMŢU, M.; OPRIŞ, D. (Cornell University, 2009)
    In this paper we established the condition for a curve to satisfy stochastic generalized fractional HP (Hamilton-Pontryagin) equations. These equations are described using Itˆo integral. We have also considered the case ...
  • Provocări ale dezvoltării economiei a Republicii Moldova: aspecte demografice 
    SÂRBU, Ion; ALBU, Ion (Academia de Studii Economice din Moldova, 2013)
    Sustainable economic growth of the Republic of Moldova depends on policies promoted by the governments and motivating citizens. Demographic constraints undermine the possibility of a sustainable economic growth for a long ...
  • On the discrete-continuous dynamical systems 
    OPRIS, D.; ALBU, I. D. (Universitatea “Al. I. Cuza” Iaşi, 1997)
    The main idea of our study is a direct treatise of the dynamical systems of discrete-continuous type our aim is to: formulate a discrete-continuous variational principle and deduce the discrete-continuous Euler-Lagrange ...
  • Mathematical Model for Diamond-Type Crystals with Impurities or Defects 
    OPRIŞ, D.; ALBU, I. D. (Politehnica University of Bucharest, 1998)
    This work develops the geometry and dynamics of diamond-type crystals with impurities or defects and symmetry from the perspective of Langrangian mechanics. We begin by formulating continuous–discret Lagnge-d`Alembert ...
  • Leibniz dynamics with time delay 
    ALBU, Ion Doru; OPRIŞ, Dumitru (Cornell University, 2005)
    In this paper we show that several dynamical systems with time delay can be described as vector fields associated to smooth functions via a bracket of Leibniz structure. Some examples illustrate the theoretical considerations.
  • Geometrical Aspects of the Covariant Dynamics of Higher Order 
    OPRIŞ, D.; ALBU, I. D. (Springer Nature Switzerland, 1998)
    We present some geometrical aspects of a higher-order jet bundle which is considered a suitable framework for the study of higher-order dynamics in continuous media. We generalize some results obtained by A. Vondra, [7]. ...
  • Euler-Poincarè-Poisson Equations for Semidirect Products and Principal Bundles 
    OPRIŞ, D.; ALBU, I. D. (Politehnica University of Bucharest, 1999)
    A variational approach for a discrete Lagranian on a semidirect product and on principal bundle is developed.
  • Connexions métriquesk-plates 
    ALBU, I. D. (Springer Nature Switzerland, 1977)
    En effet, soit/~. une connexion m~ trique de M dont la distribution horizontale est zln. La structure de trivialisation de~, pour chaque x EM, assure l'existence d'une section locale cr~: U-~ OhM, xE U. Pour n'importe quel ...
  • Applicability of Databases in the Real Estate Valuation Process in the Conditions of the Emerging Economy of the Republic of Moldova 
    ALBU, Svetlana; ALBU, Ion (Scientific Research Publishing Inc., 2021)
    The real estate valuation activity in the Republic of Moldova dates from 2002, with the adoption of Law No. 989 on Evaluation Activity. Nevertheless, the legislative and methodological framework is extremely limited. There ...
  • Agricultura Republicii Moldova: probleme economice şi perspective 
    ALBU, I.; ALBU, D. (Institutul de genetică, fiziologie şi protecţie a plantelor, 2020)
    The agricultural sector holds a significant position in the economy of the Republic of Moldova, which requires permanent studies of the problems created and finding solutions to solve them. A common problem in the agricultural ...
  • 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 ...
  • The role of business incubators as instrument management in contemporary economy 
    GOROBIEVSCHI, Svetlana; DODU, Aliona (Editura Independenţa Economică, 2016)
    The development of entrepreneurship in the economies of different countries is the driving force of the economic competitiveness, wich ensure the innovation on the market of the product and service. In the literature there ...
  • Morbidity issues concerning child population under 18 years of age in Moldova, by birth defects, 2004-2015 
    GOROBIEVSCHI, Svetlana; BUTA, Galina (Universitatea Spiru Haret, Bucureşti, 2016)
    The paper presents a comprehensive study of the dynamics of statistical indicators of congenital malformations in the pediatric population in Moldova during 2004-2015. The study analyzes some aspects which lead to child ...
  • Public-private partnership role in rural management in Republic of Moldova 
    GOROBIEVSCHI, Svetlana (Institutul de Cercetări Economice şi Sociale „Gheorghe Zane”, Iaşi, 2010)
    The article described the current problems of rural communities in Moldova in transition stage. The author examines rural management activities and determine its problems. Among the key problems is that the problem of rural ...
  • Superconductivity up to 36 K in nano-width crystallite interfaces of Bi1-x-Sbx(x≤0.2) alloys 
    MUNTYANU, F. M.; CHISTOL, V. (Institutul de Fizică Aplicată, 2010)
    Magnetic properties of high quality bicrystals (in some samples the Dingle temperature of charge carriers was even less than 1 K) and tricrystals of Bi1-x-Sbx(x ≤ 0.2) alloys were studied in the temperature range(1.8 -100) ...
  • Superconducting crystallite interfaces with Tc up to 21 K in Bi and Bi-Sb bicrystals of inclination type 
    MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A.; CHISTOL, V. (Elsevier, 2008)
    Magnetic properties of high quality Bi and Bi1−x–Sbx (x≤0.07) bicrystals of inclination type were studied in the temperature range (1.8–30) K using a quantum design SQUID magnetometer. It is found that the crystallite ...
  • Superconducting and weak ferromagnetic features at interfaces of bicrystals of 3D topological insulator BI 1-XSB X 
    MUNTYANU, F. M.; ZALESKI, A. J.; ROGACKI, K.; CHISTOL, V. (Institutul de Fizică Aplicată, 2018)
    In this report we present the results of study of the magnetic and superconducting properties of bicrystals of 3D topological insulator (TI) Bi1-xSbx (0 ≤x ≤ 0.2) in temperature range 1.8-100K using Quantum Design SQUID ...
  • Peculiarities of quantium oscillations of longitudional Hall effect in high magnetic firelds im bismuth becrystals 
    MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A.; PALEWSKI, T.; CHISTOL, V. (American Romanian Academy of Arts and Science, 2013)
    We report the results of longitudinal Hall effect (LHE) study in Bi bicrystals with nano-width superconducting crystallite interfaces (CIs), converted by magnetic field or current in normal state, in order to elucidate the ...

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