Yen Liu

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An efficient, high-order, conservative method named the spectral difference method has been developed recently for conservation laws on unstructured grids. It combines the best features of structured and unstructured grid methods to achieve high-computational efficiency and geometric flexibility; it utilizes the concept of discontinuous and high-order local(More)
Herein, we present a complete three-dimensional (3D) map of major neuropil structures in the central brain of the cockroach Diploptera punctata. The positions of the structures have been ascertained by confocal microscopy, which, until now-for reasons of tissue opacity and nonhomogeneity-has been thought impractical in imaging fluorescently labeled(More)
A new, high-order, conservative, and efficient method for conservation laws on unstructured grids is developed. It combines the best features of structured and unstructured grid methods to attain computational efficiency and geometric flexibility ; it utilizes the concept of discontinuous and high-order local representations to achieve conservation and high(More)
In this paper, the fourth in a series, the spectral volume (SV) method is extended to multi-dimensional systems – the 2D Euler equations. The focus of this paper is to study the performance of the SV method on multidimensional non-linear systems, and to verify that high order solution accuracy up to fourth-order can be achieved for the systems of(More)
The present study discusses several approaches of representing curve boundaries with high-order Euler solvers. The aim is to minimize the solution entropy error. The traditional boundary representation based on interpolation polynomials is presented first. A new boundary representation based on the Bezier curve is then developed and analyzed. Several(More)
A healthy 28 year-old man with isolated oral candidiasis at 17 and 26 years, on no medications, and having a recent URI 1 week before, presented with acute-onset progressive, painful oral mucositis and odynophagia (Fig. 1). His temperature was 101.6°F. The white blood cell count was 19.5, with 4.4% lymphocytes, 226CD4. Oral nystatin and IV caspofungin were(More)
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