Daoxuan Liang

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INTRODUCTION: With the emergence of compressed sensing (CS) theory (1-2), its combination with parallel magnetic resonance imaging (pMRI) is of great interests. SparseSENSE has been proposed independently (3-6) which applies CS to SENSE (7) with random sampling as a regularization method. However, there are a couple of issues with the method. First, the(More)
INTRODUCTION Considerable attention has been paid to compressed sensing (CS) in the MRI community recently (1,2). CS theory allows exact recovery of a sparse signal from a highly incomplete set of samples (3,4), and thus has the potential for significant reduction in MRI scan time. While most existing work has focused on Fourier encoding, non-Fourier(More)
Introduction Compressed Sensing (CS) image reconstruction requires the image of interest to be sparse or compressible under some transform and the encoding matrix to be incoherent with the sparsifying transform. With Fourier encoding in MRI, the level of sparsity and incoherence achieved by the transform affects the under-sampling that can be performed(More)
INTRODUCTION: Most existing dynamic MRI methods using compressed sensing (CS) [1-3] only exploit the prior information that the dynamic image series is sparse after a certain transform. Other prior information about the unknown MR images is usually available and should also be exploited in CS reconstruction algorithms. In this abstract, we study how to(More)
To determine the effects of rootstock choice on the scion response to drought stress, we compared the vegetative growth, biomass accumulation, gas exchange, and water-use efficiency (WUE) of ‘Gale Gala’ apple (Malus domestica Borkh.) trees grafted onto nine wild Chinese Malus rootstocks. Compared with the well-watered control, drought treatment limited(More)
INTRODUCTION: Diffusion-weighted MRI (DWI) provides a non-invasive method for in vivo evaluation of tissue water mobility. Most DWI studies employ single-shot EPI techniques which can suffer severe artifacts and image distortion in some applications. Multi-shot FSE-based DW-PROPELLER (1) and Turboprop (2) have shown to overcome these limitations. However,(More)
We studied photosynthetic capacity, growth, sap flow, and water-use efficiency in young trees of ‘Pink Lady’ apple (Malus domestica) that were exposed to 60 d of moisture stress. Three irrigation schemes were tested in the greenhouse: well-watered control; drought; or alternate deficit irrigation (ADI). Compared with the drought-stressed plants, those(More)
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