The action of low‐pressure inductively coupled plasma discharge on selected homo‐polypeptides of amino acids, i.e., fundamental building blocks of proteins, has been investigated in order to evaluate their removal rates under different treatment conditions. It has been found that the removal rates of the homo‐polypeptides studied are strongly linked to the composition of the plasma discharges, but they are almost insensitive to their chemical composition. This provides an indication that all proteins could be removed at similar rates by a given plasma discharge, which is a finding of paramount importance mainly with respect to decontamination of surfaces and elimination of infectious proteins like prions.
Undulators are key devices to produce brilliant synchrotron radiation at the synchrotron radiation facilities.In this paper we present a numerical computing method,including the computing program that has been developed to calculate the spontaneous radiation emitted from relativistic electrons in undulators by simulating the electrons' trajectory.The effects of electron beam emittance and energy spread have also been taken into account.Comparing with other computing methods available at present,this method has a few advantages with respect to several aspects.It can adopt any measured or arbitrarily simulated 3D magnetic field and arbitrary electron beam pattern for the calculation and it's able to analyze undulators of any type of magnetic structure.It's expected to predict precisely the practical radiation spectrum.The calculation results of a short period in-vacuum undulator and an EllipticaUy Polarized Undulator (EPU) at Shanghai Synchrotron Radiation Facility (SSRF) are presented as examples. 相似文献
This paper discusses tunneling of scalar particles andDirac particles from the Taub-NUT-AdS black hole by theHamilton--Jacobi equation, initially used by Angheben et al,and the Dirac equation, recently proposed by Kerner and Mann.This is performed in the dragging coordinate frame soas to avoid the ergosphere dragging effect. A generalform is obtained for the temperature of scalar and Dirac particles tunnelingfrom the Taub-NUT-Ads black hole, which is commensurate with othermethods as expected. 相似文献