K shell
1.K-Shell Ionisation of Al and Si Thin Targets by 0.4-3.0 Mev Incident Protons
2.CHARACTERISTIC K-SHELL X-RAYS PRODUCTION IN Al,Ti AND Ni BY 250 TO 430Kev PROTONS
3.Four collocation types of damping spring bar applied to K8 single-layer latticed shell structure were introduced. The influence of relieving effect of damping spring bar collocation in the structure and mechanical behavior of damping spring load-relieving latticed shell were analyzed. Furthermore, the influence of the stiffness coefficient K of damping spring bar was discussed.
4.We present H and K s polarimetric images in a ～5′ field of star forming region NGC7538. The polarimetric images reveal the complex structure of infrared nebulosities and clusters of young stars, associated with the bright infrared sources IRS 1 11. The polarization pattern in the IRS 1 3 nebula shows a dominant illumination from deeply embedded source IRS 1. The morphology of the nebula can be modeled by a low extincted bubble enclosed by redder and highly polarized shell.
