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Spatial multiple access holds the promise to boost the capacity of wireless networks when an access point has multiple antennas. Due to the asynchronous and uncontrolled nature of wireless LANs, conventional MIMO technology does not work efficiently when concurrent transmissions from multiple stations are uncoordinated. In this paper, we present the design(More)
Much of the visualization research has focused on improving the rendering quality and speed, and enhancing the perceptibility of features in the data. Recently, significant emphasis has been placed on focus+context (F+C) techniques (e.g., fisheye views and magnification lens) for data exploration in addition to viewing transformation and hierarchical(More)
AIM α-Naphthylisothiocyanate (ANIT) is a well-characterized cholestatic agent for rats. The aim of this study was to examine whether resveratrol could attenuate ANIT-induced acute cholestasis and liver injury in rats. METHODS SD rats were treated with resveratrol (15 or 30 mg/kg, ip) or a positive control drug ursodeoxycholic acid (100 mg/kg, po) for 5(More)
We have studied Ca2+ homeostasis in a unique model of human neurons, the NT2N cell, which differentiates from a human teratocarcinoma cell line, NTera2/C1.D1 by retinoic acid treatment. When perifused with Krebs-HEPES buffer containing 2.5 mM CaCl2, fura-2 loaded NT2N cells produced spontaneous cytosolic Ca2+ oscillations, or Ca2+ transients. These(More)
The proliferation of Wireless Sensor Network has fostered growing interest in self-localization branch. This paper present a novel localization algorithm based on received signal strength indicator to solve the limitation of reconstructing the signal strength data set when environment change. The received signals strength ratio of both anchors and virtual(More)
Catchment delineation is one of essential steps for sewershed modeling studies. The traditional manual catchment delineation method for large-scale sewersheds is time consuming. Advanced functions in GRID module of ArcInfo help modelers to automatically delineate watersheds. By adapting these functions, three automatic approaches to delineate catchments(More)
PURPOSE Accurate target delineation is a critical step in radiotherapy. In this study, a robust contour propagation method is proposed to help physicians delineate lung tumors in four-dimensional computer tomography (4D-CT) images efficiently and accurately. METHODS The proposed method starts with manually delineated contours on the reference phase. Each(More)
It remains to be seen whether S-1 can be a replacement for infusional fluorouracil (5-FU) for advanced gastric cancer (AGC). The aim of this study was to compare the efficacy and safety of S-1 with 5-FU in AGC.PubMed and Cochrane Library were searched. Randomized controlled trials and meta-analyses comparing S-1 with 5-FU for AGC were eligible.(More)