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A systematic study is carried out on the angular distribution and polarization of photons emitted following radiative-recombination of bare and He-like ions of Ne, Ar, Ni and Mo with a unidirectional electron beam. In order to incorporate the screening effect due to inner-shell electrons, a distorted wave method is used. Scaling rules for polarization of the photon following radiative recombinatio
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We present a calculation scheme with significant modifications and improvements for determining the ionization balance and the ion temperature evolution in an electron beam ion trap (EBIT). The scheme is applied to uranium and nitrogen ions using a specific set of EBIT operating parameters. The calculation results are compared to the experimental data. Rates for the individual atomic processes in
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In this second issue on the scholar and public intellectual Yu Jianrong, we address some of the topics that have been at the core of his academic work and where his research and views have helped shaped awareness of these issues among the general public and the academic community. We focus on the rural-urban divide, land issues (including land confiscations and property demolitions), the letters a
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Introduction: In recent years omni-channel retailing has been accepted and used by both physical and e-commerce retailers. In omni-channel retailing different channels are integrated. An effective and efficient distribution system is becoming more crucial. The core of the distribution system is warehousing that affects lead time and logistics cost. The main challenge is to handle large store reple