Nr. 4

 

CONTENT

Author

Title

Page

SOBOR I.
TĂRÎŢĂ S.

Some aspects of the wind energy integration into the national power system (NPG)

13

VASCAN G.

Conceptual considerations on the performance and energy efficiency of buildings

18

CRUDU R.

Aeolian blades wound spars design and modeling procedure

21

GUŢU M.

Experimental and numerical analysis of stresses and strain in specimen of composite material

24

MARUSIC G.
SANDU, I.

MORARU V.

FILOTE C.

CIUFUDEAN C.

BEŞLIU V.

VASILACHE V.

ŞTEFĂNESCU B.
ŞEVCENCO N.

Fluoride dispersion modeling for “river-type” systems

28

CROITOR D.
SANDULACHI E.

Factors determining the accuracy evaluation of indexes oil quality

33

OPREA D.

The hydropower

35

SANDULACHI E.

Water activity concept and its role in food preservation

40

BERTEA A.
BERTEA A. P.

Oxidative decolorization of textile wastewater

49

JIMAN V.
GEAMAN V.
GEAMAN L.

Hip of ceramics - new engineering applications

51

MIRONOV B.

The general solution of problem on interaction between wave and stream in the undular frames

55

RUGESCU R. D.

Thermal freezing in the technology of aerospace propellants

61

CATARSCHI V.

The analytical determination of the thermal tensions while heating a equivalent cylindrical steel ingot

67

LUCA N.

Promoting the wine culture by implementing the sommelier profession

71

SANDULACHI E.
GORNET V.

The correlation between nutritional value indicators of meat and liver

74

BOSTAN I.
DULGHERU V.

Development of planetary processional transmission with multicouple gear

78

BELCIN O.
TURCU I.
PUSTAN M.

Freewheeling clutch and polyhedral ring

84

BÂRSAN A.

Some optimization possibilities regarding the kinematics of the Geneva mechanisms

88

СIAUŞU V.
MERTICARU E.

Study of the reaction forces in a packing mechanism

92

DULGHERU V.

Technological evolution and creativity

96

MANOLEA Gh.

Personalities from the meridians of the engineering universe

98

Recent Submissions

  • Personalities from the meridians of the engineering universe. Plauţius Andronescu, a Romanian – pioneer in world electrotechnics 
    MANOLEA, Gheorghe (Technical University of Moldova, 2012)
  • Technological evolution and creativity 
    DULGHERU, Valeriu (Technical University of Moldova, 2012)
  • Study of the reaction forces in a packing mechanism 
    СIAUŞU, V.; MERTICARU, E. (Technical University of Moldova, 2012)
    In the paper there are calculated the reaction forces, considering the redundant constraints through the effort method from the materials resistance. There is considered a mechanism in the structure of a butter-packing ...
  • Some optimization possibilities regarding the kinematics of the Geneva mechanisms 
    BÂRSAN, A. (Technical University of Moldova, 2012)
    The paper proposes some kinematical optimizing solutions for the Geneva mechanism. Three mechanisms are presented: a curved slotted Geneva mechanism, a “Y” type Geneva mechanism and a conventional Geneva mechanism driven ...
  • Freewheeling clutch and polyhedral ring 
    BELCIN, O.; TURCU, I.; PUSTAN, M. (Technical University of Moldova, 2012)
    The present paper presents special category of couplings mechanical - intermittent - asynchronously - commanded. The movement transmission and the torsion moment is achieved through cylindrical roller that, hydraulically ...
  • The correlation between nutritional value indicators of meat and liver 
    SANDULACHI, E.; GORNEŢ, V. (Technical University of Moldova, 2012)
    This paper present the evaluation, based on bibliographic and experimental study of the nutritional value of meat and liver of bovines/porcinis. Was studied the chemical composition and nutritional value of raw materials.Nutrition ...
  • Promoting the wine culture by implementing the sommelier profession 
    LUCA, N.; REŞITCA, V. (Technical University of Moldova, 2012)
    The wine industry it is traditionally the strongest sector of national economy, as well as it has an international reputation. It is an established fact, that wine is manufactured in Moldova from ancient times. In order ...
  • The analytical determination of the thermal tensions while heating a equivalent cylindrical steel ingot 
    CAŢARSCHI, V. (Technical University of Moldova, 2012)
    The stresses built up in ingot and semi-finished products during their thermal working. Are part of the basic factors that limit the heating or cooling rate as well as the destructing phenomenon of the metal compactness. ...
  • Thermal freezing in the technology of aerospace propelants 
    RUGESCU, R. D. (Technical University of Moldova, 2012)
    The thermal freezing phenomenon was occasionally identified during an early experimental verification of shifting equilibrium rocket flow computations. The manner by which the value of 1671÷36ºK for this temperature was ...
  • The general solution of problem on interaction between wave and stream in the undular frames 
    MIRONOV, B. (Technical University of Moldova, 2012)
    The undular frame of reference can be defined as system of tools consisting from waves having the same nature as observed waves. In proposed paper is solved in a general form, the problem about determination of force, which ...
  • Hip of ceramics - new engineering applications 
    JIMAN, V.; GEAMĂN, V.; GEAMĂN, L. (Technical University of Moldova, 2012)
    Ceramics in general are characterized by strong interatomic bonds. This leads to for many applications desirable like high chemical inertness, high hardness and high strength, also at temperature and during extended periods ...
  • Oxidative decolorization of textile wastewater 
    BERTEA, A.; BERTEA, A. P. (Technical University of Moldova, 2012)
    The paper explores the possibilities to achieve the decolorization of wastewater containing direct, acid, reactive and disperse dyes with hydrogen peroxide. Three dyestuffs of each category have been studied, using different ...
  • Water activity concept and its role in food preservation 
    SANDULACHI, E. (Technical University of Moldova, 2012)
    This paper presents a literature review of national and international studies of water activity concept and its role in food preservation. Article includes information on the processing of fruits and vegetables by combined ...
  • The hydropower 
    OPREA, D. (Technical University of Moldova, 2012)
    Hydropower is an extremely flexible technology for power generation. Hydro reservoirs provide built-in energy storage, and the fast response time of hydropower enables it to be used to optimize electricity production across ...
  • Factors determining the accuracy evaluation of indexes of oil quality 
    CROITOR, D.; SANDULACHI, E. (Technical University of Moldova, 2012)
    This article presents a bibliographic study aimed at assessing the impact of various factors on quality indicators walnuts oil. Presents the quality indicators of walnuts oil oxidized and unoxidized obtained by different methods.
  • Fluoride dispersion modeling for „river-type” systems 
    MARUSIC, G.; SANDU, I.; MORARU, V.; FILOTE, C.; CIUFUDEAN, C.; BEŞLIU, V.; VASILACHE, V.; ŞTEFĂNESCU, B.; ŞEVCENCO, N. (Technical University of Moldova, 2012)
    This paper deals with the problem of mathematical modeling and numerical simulation of the process of fluoride dispersion in "river-type" systems. Navier Stokes equations are used in the form of Reynold’s equation, continuity ...
  • Experimental and numerical analysis of stresses and strain in specimen of composite material 
    GUŢU, M. (Technical University of Moldova, 2012)
    The purpose of this study is to investigate stresses and strain in specimen of composite material used in wind turbine blade construction. In this experimental study, Polyester/ E-Glass composite plate was manufactured by ...
  • Aeolian blades wound spars design and modeling procedure 
    CRUDU, R. (Technical University of Moldova, 2012)
    The paper relates to the design and modeling procedure of the wound spars made of fibrereinforced composites that are typical for small Aeolian rotor blades of our days. The calculus is conducted on the basis of longitudinal ...
  • Conceptual considerations on the performance and energy efficiency of buildings 
    VASCAN, G. (Technical University of Moldova, 2012)
    The goal of this paper is to address the performance requirements for constructions, in order to satisfy the needs of consumers for the whole life cycle of construction, in line with the social and economic requirements. ...
  • Some aspects of the wind energy integration into the national power system 
    SOBOR, I.; TĂRÎŢĂ, S. (Technical University of Moldova, 2012)
    Integration in the NPG of 200 MW wind power means a wind energy penetration factor equal to 0,13 and will not cause major technical problems. Acceptance of the FiT supporting scheme for wind power generation will increase ...