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4篇 您的检索式:作者名="MeiGuo"
    题名 作者 年代 出处 被引量
1Detection of human papillomavirus in Chinese esophageal squamous cell carcinoma and its adjacent normal epithelium显示文摘AIM: To investigate the putative role of human papillomavirus (HPV) infection in the carcinogenesis of esophageal squamous cell carcinoma in China.METHODS: Twenty-three esophageal squamous cell carcinoma samples and the distal normal epithelium from Shanxi Province, and 25 more esophageal squamous cell carcinoma samples from Anyang city, two areas with a high incidence of esophageal cancer in China, were detected for the existence of HPV-16 DNA by PCR, mRNA in situ hybridization (ISH) and immunohistochemistry (IHC) targeting HPV-16 E6 gene. RESULTS: There were approximately 64 % (31/48) patients having HPV-16 DNA in tumor samples, among them nearly twothirds (19/31) samples were detected with mRNA expression of HPV-16 E6. However, in the normal esophageal epithelium from cancer patients, the DNA and mRNA of HPV-16 were found with much less rate: 34.7 % (8/23) and 26.1% (6/23) respectively.In addition, at protein level detected by IHC assay, 27.1% (13/48) tumor samples had virus oncoprotein E6 expression, while only one case of normal epithelium was found positive.CONCLUSION: HPV infection, especially type 16, should be considered as a risk factor for esophageal malignancies in China.Xiao-BoZhou MeiGuo Lan-PingQuan WeiZhang Zhe-MingLu Quan-HongWang YangKe Ning-ZhiXu 2003World Journal of Gastroenterology2003,9,6:15
2Application of uniform DFT filter bank in radar jamming system显示文摘The principle of Uniform DFT filter bank is presented. Exploiting poly-phase structure, radar jamming system samples the intercepted wideband radar signals through analysis filter bank by different channels and linearly modulates the intercepted radar signal according to the theory of signal and system, then synthesizes the jamming signal through the synthesis filter bank. The method merely requires lower sample frequency, reduces the computational complexity and the data quantity to be processed. The un-ideal filter’s influence to the result of signals processing is analyzed by simulating the match filter in radar jamming system.Dai Le Gao Meiguo 2006Journal of Systems Engineering and Electronics2006,17,3:3
3Sensor scheduling criterion of space surveillance network based on the eovariance of relative orbit elements显示文摘Wang Junling Fu Tuo Gao Meiguo 2013Journal of Guidance Control and Dynamics2013,36,5:1
4Direction estimation for two steady targets in monopulse radar显示文摘Traditional monopulse radar cannot resolve two targets present in one range and Doppler cell by means of the monopulse ratio. A novel algorithm is proposed to estimate the directions of two steady targets with two pulses. The algorithm has a closedform expression and its variance is derived at high signal-to-noise ratios(SNRs). Furthermore, the pulse pair selection criterion and the estimation method with multiple pulses are given. Finally, some numerical results are shown to validate the proposed algorithm and the effect of slight target fluctuations is tested.Zhenxing Lu Yunjie Li Meiguo Gao 2015Journal of Systems Engineering and Electronics2015,26,1:0
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