نتایج جستجو برای: macroelement
تعداد نتایج: 106 فیلتر نتایج به سال:
Sulfate is an essential macroelement for all living organisms. However, sulfate can be limited in agricultural settings. Microorganisms change their gene expression to acclimate deficient conditions. Green microalga Chlamydomonas reinhardtii expresses and secretes extracellular arylsulfatase (ARS) under Our results show that C. ARS hydrolyze both monoester (5-bromo-4-chloro-3 indolyl sulfate; X...
To determine the growth rate and element contents of fingernails in young adults, 109 apparently healthy college students were recruited for determination. As a result, the average growth rate of the left thumb was 3.14±0.63 mm/month with significantly faster rates in male and taller participants. The concentrations for Ca, Na, P, K, and Mg were 701.1±274.8 μg/g, 452.3±353.9 μg/g, 331.6±119.7 μ...
This study aims to present a new three-dimensional moving macroelement for the numerical analysis of beam on elastic foundation under loads as railroad track vibration. Our research is based case conducted in Iranian Railroad Projects. Due involving large number elements, vibration beams tracks with standard elements time-consuming. Two approaches are used and combined this improve realistic mo...
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