Xiaoyang Wang

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BACKGROUND Previous reports have suggested that malignant transformations originate from adult stem cells, and may thus express the stem-cell-associated markers. The purpose of this study is to investigate the differential expression and clinical significance of seven stem-cell-associated markers (Bmi1, CD133, CD44, Sox2, Nanog, OCT4 and Msi2) in lung(More)
To overcome the overflowing and information loss caused by huge volume compressed video transmitting over dynamic changeable bandwidth, in this work, we propose a frame layer adaptive rate control scheme suitable for the video transcoding from mpeg2 to H.264 which is able to convert the bit rate of the transcoded bitstream according to the variable(More)
OBJECTIVE To explore the role of nuclear factor-kappa B (NF-kappa B) in the signal conduction of protein kinase C (PKC) regulated proliferation, apoptosis and expression of Th2 cytokines -- interleukin-4 (IL-4) and interleukin-5 (IL-5) of T lymphocytes in the bronchial alveolus lavage fluid (BALF). METHODS T lymphocytes were isolated and purified from(More)
Traditional packet scheduling algorithms such as PQ (Priority Queuing) and WFQ etc. are packet-by-packet schedulers, in which a packet of a real-time service has to wait before a long non-real-time packet finishes transmitting if the real-time packet arrives after the beginning of the non-realtime packet's transmitting. This will have a bad effect on the(More)
Weibull distribution is a continuous probability distribution model and it has been widely used in reliability engineering. When we use Least-squares method to estimate the parameters of Weibull distribution, the empirical distribution function of life model is a key factor in accuracy. Typically to some complex mechanical products in the life test of(More)
The performance degradation data can provide useful information about the reliability assessment for highly reliable and long-lifetime products. Existing system-level degradation tests may encounter many difficulties in degradation model building and the test might be difficult to carry out. This paper introduces the concept “State value”,(More)
According to the fact that video information mostly concentrated on low frequency domain and the relationship between the block DCT coefficients and subband approximations, a new arbitrary resizing algorithm for video transcoding is presented. The new algorithm can realize fractional resizing in DCT domain, and can be adapt to intra and inter transcoding
Infrared (IR) dim and small target detection in a highly complex background play an important role in many applications, and remain a challenging problem. In this paper, a novel method named stable multisubspace learning is presented to deal with this problem. The new method takes into account the inner structure of actual images so that it overcomes the(More)
Recent studies have indicated the importance of cholesterol-rich membrane lipid rafts (LRs) in oxidative stress-induced signal transduction. Reduced nicotinamide-adenine dinucleotide phosphate (NADPH) oxidases, the major sources of reactive oxygen species, are implicated in cardiovascular diseases, including hypertension. We tested the hypothesis that NADPH(More)
A phytotoxic compound, identified as 2-(2-acetyl-3,5-dihydroxyphenyl) acetic acid (curvulinic acid), was isolated from liquid cultures of the phytopathogenic fungus Nimbya alternantherae. The activity of curvulinic acid on seed germination and seedling growth of Capsella bursa-pastoris was evaluated. Percentage seed germination of C. bursa-pastoris was(More)