نتایج جستجو برای: 629 μgg

تعداد نتایج: 1720  

2000
D. Banerjee E. O’Shea

We examine spectral time series of coronal line Mg ix 368 Å and transition region line O v 629 Å, observed with the Coronal Diagnostic Spectrometer (CDS) onboard the SOHO spacecraft. Primarily we were looking for intensity and velocity oscillations in polar plumes, however by chance we detected a giant macro-spicule at the limb and were able to follow its dynamical structure. Blue and red-shift...

Background and purpose: Lead is a heavy metal, which has been replaced by calcium hydroxyapatite in tooth enamel. It is considered as an index of pollution assessment. Zanjan province is potential area for lead element accumulation. This study aimed at comparing the amount of lead in human deciduous and permanent teeth in order to evaluate and determine the risk of lead pollution in urban and r...

Journal: :Science China. Materials 2021

In the version of article originally published in volume 63, issue 4, 2020 Sci China Mater (2020, 63(4): 629-643, https://doi.org/10.1007/s40843-019-1217-4 ), grant number for National Natural Science Foundation (31300788) was incorrect. The corrected is 31670981.

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