Yu Ouyang

Pei-Qi Li2
Ran Mi2
2Pei-Qi Li
2Ran Mi
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  • L Chen, H Hu, Yu Ouyang, H Z Pan, Y Y Sun, F Liu
  • 2011
Using first-principles calculations, we investigate the chemisorption of H, N, and P atoms on a graphene substrate with or without Stone–Thrower–Wales (STW) defects. Energetically , all three atoms are preferred to adsorb onto the defect sites by an energy difference of $0.683–2.143 eV. In both the intrinsic and defected graphene, H atom adsorbs on top of a(More)
A recent method based on positron emission was reported for tracking moving point sources using the Inveon PET system. However, the effect of scanner background noise was not further explored. Here, we evaluate tracking with the Genisys4, a bismuth germanate-based PET system, which has no significant intrinsic background and may be better suited to tracking(More)
BACKGROUND Pleomorphic hyalinizing angiectatic tumor (PHAT) is a rare soft tissue tumor of low malignant potential, which most often arises in the lower extremities. Lesions occurred in other anatomic locations have been rarely reported. Moreover, their imaging features have not been well discussed. Here we report a case of PHAT arising primarily in the(More)
PURPOSE To investigate whether global spontaneous brain activity changes in type 2 diabetes mellitus (T2DM) patients and these changes vary according to the degree of microangiopathy. MATERIALS AND METHODS T2DM patients with (M(+), n=26) and without (M(-), n=22) microangiopathy as well as 28 healthy nondiabetic subjects were enrolled in this study. All(More)
Dynamic changes in tissue water diffusion and glucose metabolism occur during and after hypoxia in cerebral hypoxia-ischemia reflecting a bioenergetics disturbance in affected cells. Diffusion weighted magnetic resonance imaging (MRI) identifies regions that are damaged, potentially irreversibly, by hypoxia-ischemia. Alterations in glucose utilization in(More)
The interaction between jatrorrhizine (JAT) and bovine serum albumin (BSA) has been studied. The studies were carried out in a buffer medium at pH 7.4 using fluorescence spectroscopy, UV–vis spectroscopy, and molecular modeling methods. The results of fluorescence quenching and UV–vis absorption spectra experiments indicated the formation of the complex of(More)
Curcumin is a polyphenolic bioactive compound found in the spice turmeric endowed with diverse pharmacological and biological activities. In this study, fluorescence spectroscopy in combination with UV–Vis absorbance spectroscopy was employed to investigate the high affinity binding of curcumin to herring sperm DNA (hs-DNA). From the series of studies(More)
PURPOSE The purpose of this study was to determine the reliability of applying conventional anatomical landmarks to locate venous sinus in posterior fossa using subtraction computed tomography angiography (CTA) technique. METHODS We retrospectively reconstructed transverse sinus (TS), sigmoid sinus (SS), and cranial imaging from 100 patients undergoing(More)
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