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    Wyświetlanie 1-3 z 3
    Tytuł:
    Anther culture response and genetic relationships between Iranian and European barley (Hordeum vulgare L.) cultivars
    Autorzy:
    Izadi, S.
    Cheghamirza, K.
    Kahrizi, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/80731.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    barley
    Hordeum vulgare
    cereal grain
    anther culture response
    callus induction
    genetic diversity
    inter-simple sequence repeat marker
    Mantel test
    Iranian barley
    European barley
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 4
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of ship structure reliability during design, maintenance, and repair phases
    Autorzy:
    Kerdabadi, M. S.
    Sakaki, A.
    Izadi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/135070.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    reliability evaluation
    structure strength
    hull-girder
    corrosion
    probabilistic analysis
    Opis:
    In the present study, the reliability evaluation application during design, maintenance and repair phases have been investigated for the girder of a ship’s hull. The objective of the project was to develop reliability-based methods which are to be used for the design of ship structures, in particular by the calibration of the safety factors in the design rules. In order to evaluate the structural strength, the extended model of the ultimate limit state of the hull-girder, regarding corrosion and fatigue defects, has been used based using a time-dependent probabilistic analysis. Time-dependent reliability has been evaluated using the required minimum elastic section modulus; in the case of fatigue in a ship’s deck this process has been done using mechanical fracture and the S-N curve. The results from the reliability evaluation using the Monte-Carlo simulation method and First-order reliability methods (FORM), indicated that these two methods agreed well. Analysis of the corrosion defect reliability showed a decrease of the structure’s reliability during its lifetime; hence it is possible to use the reliability criteria in the design phase in order to achieve a better perception of the structure’s operation during its lifetime with regard to environmental conditions. A comparison between the fatigue analysis results showed that the fracture mechanics method gave more conservative results compared to the S-N curve method, because of the way it considers early crack size.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 53 (125); 19-27
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermodynamic analysis of medium pressure reciprocating natural gas expansion engines
    Autorzy:
    Farzaneh-Gord, M.
    Izadi, S.
    Pishbin, S. I.
    Sheikhani, H.
    Deymi-Dashtebayaz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/777996.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    Expansion engine
    thermodynamic
    first law
    optimization
    ideal gas model
    Opis:
    Natural gas pressure has to be reduced from medium pressure of 1.724 MPa (250 psia) to lower pressure of 0.414 MPa (60 psia) at Town Border pressure reduction Station (TBS). Currently, the pressure reduction is carried out by throttling valves while considerable amount of pressure energy is wasted. One of the equipment which could be used to recover this waste energy is the reciprocating expansion engine. The purpose of this research is to simulate one-sided reciprocating expansion engine thermodynamically for TBS pressure range. The simulation is based on first law of thermodynamics, conversation of mass and ideal gas assumptions. The model could predict in-cylinder pressure and in-cylinder temperature at various crank angles. In addition, the effects of the engine geometrical characteristics, such as intake and exhaust port area and ports timing on the Indicated work per cycle output are investigated.
    Źródło:
    Polish Journal of Chemical Technology; 2015, 17, 2; 119-125
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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