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(2)] , (ln[) , , (ln[ 0 y x i y x T TE y x I TE y x f φ + − = ]. 1 [) , () , (2)] , (ln[) , , (ln[ 0 y x i y x T TE y x I TE y x f φ + − = Introduction: Recently radial methods have been investigated as a means to obtain MRI-dependent tissue parameters such as T2 and T1 from a single k-space data set 1,4. These methods permit the fast measurement of tissue(More)
A near-IR (NIR) tomography system with spectral-encoded sources was built to quantify the temporal contrast in human breast tissue using guidance from magnetic resonance imaging. The systems were integrated with a custom breast coil interface to provide simultaneous acquisition. The NIR signal was synchronized to simultaneous finger pulse oximeter(More)
In this paper, three versions of WENO schemes WENO are used for one-dimensional detonation wave simulations with fifth order characteristic based spatial flux reconstruction. Numerical schemes for solving the system of hyperbolic conversation laws using the ZND analytical solution as initial condition are presented. Numerical simulations of one-dimensional(More)
A high frame-rate near-infrared (NIR) tomography system was created to allow transmission imaging of thick tissues with spectral encoding for parallel source implementation. The design was created to maximize tissue penetration through up to 10 cm of tissue, allowing eventual use in human imaging. Eight temperature-controlled laser diodes (LD) are used in(More)
In this paper, we demonstrate the detailed numerical studies of three classical two dimensional detonation waves by solving the two dimensional reactive Euler equations with species with the fifth order WENO-Z finite difference scheme (JCP 227, 2008) with various grid resolutions. To reduce the computational cost and to avoid wave reflection from the(More)
An iterative method is proposed to calibrate radiation sensitivities of an arbitrary two-dimensional (2D) array of detectors. The array is irradiated with a wide open- field beam at the central position, as well as at laterally and longitudinal shifted positions; the 2D beam profile of the wide field is reconstructed iteratively from the ratios of shifted(More)
Introduction: The information yielded by T2-weighted and the in-and out-of phase images is important in the characterization of liver pathologies [1]. The difference in signal intensity between moderately and heavily T2-weighted images is used to discriminate benign from malignant lesions. Differences between the in and out-of-phase images are used to(More)
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