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We have tested the effectiveness of polyethylene glycol (PEG) to restore the integrity of neuronal membranes after mechanical damage secondary to severe traumatic brain injury (TBI) produced by a standardized head injury model in rats. We provide additional detail on the standardization of this model, particularly the use and storage of foam bedding that(More)
1 Department of Computer Sciences, Purdue University, 1398 CS Building, W. Lafayette, IN, 47907-1398, USA e-mail: sun@cs.purdue.edu 2 Mainframe Entertainment, 500-2025 W. Broadway, Vancouver, BC V6J 1Z6, Canada E-mail: drdude@reboot.com 3 School of Computing Science, Simon Fraser University, Burnaby, BC V5A 1S6, Canada e-mail: mark@cs.sfu.ca 4 VP Research &(More)
The iridescent colors observed on objects such as optical disks are caused by light diffraction from their surface microstructure. We show that when an optical disk is illuminated by a light source it typically displays a major highlight strip of colors diagonally across the disk, consisting of saturated colors that vary along the strip, and a pair of weak(More)
Brilliant iridescent colors occur on many biological objects. Current RGB-based graphics renderers are not sufficient to simulate such phenomena. This is because biological iridescences are caused by interference or diffraction, which requires wavelength information to describe. In this article, we propose an iridescent shading process that allows to render(More)
  • Yinlong Sun
  • Proceedings of the 2004 IEEE Computer Society…
  • 2004
This paper develops an analytic model for self shadowing and local illumination of rough surfaces. The surface is assumed homogeneous, isotropic, and smooth microscopically, with a Gaussian height field. The total reflection is decomposed into single and multiple scattering. A shadowing factor is derived as a function of surface roughness, and color(More)
Recent study in neuroscience has observed evidence that the anatomic structures in human brains might have certain connection with the functioning. This triggers the interest in morphological study of cortical surfaces and in comparison of different ethnic groups. This article compares the MRI brain datasets of 10 Chinese and 10 Caucasians. A statistical(More)
A common observation about confocal microscopy images is that lower image stacks have lower voxel intensities and are usually blurred in comparison with the upper ones. The key reasons are light absorption and scattering by the objects and particles in the volume through which light passes. This report proposes a new technique to reduce such noise impacts(More)