Xiao-Hong Fan

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The nucleation of cubic boron nitride (cBN) single crystals synthesized with lithium nitride (Li3N) as a catalyst under high pressure and high temperature (HPHT) was analyzed. Many nanometer-sized cubic boron nitride nuclei formed in the near surface layer, as detected by high resolution transmission electron microscopy. Based on the experiment results, the(More)
This paper describes spectra of quasar candidates acquired during the commissioning phase of the Low-Resolution Spectrograph of the Hobby-Eberly Telescope. The objects were identiÐed as possible quasars from multicolor image data from the Sloan Digital Sky Survey. The 10 sources had typical r@ magnitudes of 19È20, except for one extremely red object with r@(More)
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