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Objectives Gene cloning, purification, and characterization of γ-glutamyltransferase from Pseudomonas syringae (PsGGT) were performed in Escherichia coli. Results PsGGT was partially purified to 13-fold, with a specific activity of 0.92 U/mg. The molecule is presumed to be a heterodimeric consisting of large (37 kDa) and small (21 kDa) subunits. The optimal pH and temperature for hydrolytic activity...
We investigated crystallization mechanism of a-Si0.5Ge0.5 film by excimer-laser annealing (ELA) at energy density of 50–70mJ/cm2 in comparison with a method of synchrotron radiation soft X-ray irradiation at storage ring current of 50–220 mA. The nucleation mechanism of Si0.5Ge0.5 via ELA will be discussed by considering the soft X-ray method.
We investigated a low-temperature crystallization of a- Si and a-Ge films by the synchrotron radiation soft X-ray irradiation at storage-ring current of 25–220 mA. It is found that the crystallization temperatures of a-Si and a-Ge were decreased from 680 to 580 °C and from 500 to 390 °C. These decreasements relate effects of enhancement atomic migration via electron excitation at valence band and...
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