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    Wyświetlanie 1-3 z 3
    Tytuł:
    Lie ideals in prime Γ-rings with derivations
    Autorzy:
    Suliman, Nishteman
    Majeed, Abdul-Rahman
    Powiązania:
    https://bibliotekanauki.pl/articles/728934.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
    Tematy:
    prime Γ-rings
    Lie ideals
    derivations
    Opis:
    Let M be a 2 and 3-torsion free prime Γ-ring, d a nonzero derivation on M and U a nonzero Lie ideal of M. In this paper it is proved that U is a central Lie ideal of M if d satisfies one of the following
    (i) d(U)⊂ Z,
    (ii) d(U)⊂ U and d²(U)=0,
    (iii) d(U)⊂ U, d²(U)⊂ Z.
    Źródło:
    Discussiones Mathematicae - General Algebra and Applications; 2013, 33, 1; 49-56
    1509-9415
    Pojawia się w:
    Discussiones Mathematicae - General Algebra and Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growth and Yield Response of Field Pea (Pisum Sativum L.) to Gamma Irradiation Stress
    Autorzy:
    Majeed, Abdul
    Muhammad, Zahir
    Ullah, Rehman
    Powiązania:
    https://bibliotekanauki.pl/articles/2199667.pdf
    Data publikacji:
    2016-12-20
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    Biotechnology
    Genetic variation
    Ionizing radiation
    Legumes
    Mutation
    Opis:
    Ionizing radiation has extensive applications in agriculture for inducing mutagenic changes in major field crops, potential breeding purposes, varietal development and crop improvement. This study was conducted to test the efficacy of 0.8, 1.6, 2.4 and 3.6 kGy gamma irradiation doses (Cobalt-60) upon growth and yield performance of edible pea (Pisum sativum L.) in pot culture experiment during 2009. Results demonstrated that higher radiation doses (1.6 and 3.2 kGy) significantly influenced the studied attributes of P. sativum. It was observed that 3.2 kGy had detrimental effects on shoot and pod lengths of pea which were reduced by 14.60 and 17.71 % respectively when compared to control. Differential response of the number of seeds pod-1, 1000 grain weight and dry biomass of pea were recorded at the applied doses. Significant reduction in number of seeds (-14.21 %) but increase in 1000 grain weight (+13.93 %) and dry biomass (+11.32 %) of pea were recorded at 1.6 kGy which revealed stimulatory effects on grain weight and dry biomass. Conversely, radiation dose 3.2 kGy was found detrimental to all the studied parameters except number of pods plant-1 and number of seeds pod-1 which were not affected.
    Źródło:
    Plant Breeding and Seed Science; 2016, 74; 27-35
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhancement of Some Mechanical Properties of Polyethylene Glycol by Adding Carboxymethyl Cellulose as a Blends and Applied in Wood Glue
    Autorzy:
    Obeid, Karrar Abd-Ali
    Al-Bermany, Abdul-Kareem J.
    Habeeb, Majeed Ali
    Powiązania:
    https://bibliotekanauki.pl/articles/1193936.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Acoustical Properties
    CMC
    Carboxymethyl Cellulose
    PEG
    Polyethylene Glycol
    Ultrasonic Technique
    Wood Glue
    Opis:
    The (PEG/CMC) blends were prepared by liquids mixing method, the appropriate concentrations of PEG were (0.1-0.2 to 0.8 g/mL)% are dissolved in (500 mL) of distilled water under stirring without heat for (20 min.) then added the CMC with two weights (0.25 and 0.5) g for each PEG concentrates at (288 K). In order to evaluate the mechanical properties of (PEG/CMC) blends the ultrasonic measurements were performed at these samples, these properties are ultrasonic velocity, compressibility, acoustic impedance and bulk modulus, were made at fixed frequency (f = 25 kHz), another acoustic mechanical properties were measured and calculated at a same time such as the ultrasonic wave amplitude absorption by using oscilloscope, then calculated the absorption coefficient and the transmittance ratio of the sound. It was found that there is significant relationship between ultrasonic velocity and material properties results show that adding PEG effects on the density then on the absorption of the ultrasonic waves inside the blend samples. Finally applied this blend in various concentrations as additive to imported wood glue and found that increasing the adhesion force after adding comparing with pure. FT-IR test has been made.
    Źródło:
    World Scientific News; 2015, 21; 12-23
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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