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| 1 | A model of sea surface temperature front detection based on a threshold interval显示文摘A model(Bayesian oceanic front detection, BOFD) of sea surface temperature(SST) front detection in satellite-derived SST images based on a threshold interval is presented, to be used in different applications such as climatic and environmental studies or fisheries. The model first computes the SST gradient by using a Sobel algorithm template. On the basis of the gradient value, the threshold interval is determined by a gradient cumulative histogram. According to this threshold interval, front candidates can be acquired and prior probability and likelihood can be calculated. Whether or not the candidates are front points can be determined by using the Bayesian decision theory. The model is evaluated on the Advanced Very High-Resolution Radiometer images of part of the Kuroshio front region. Results are compared with those obtained by using several SST front detection methods proposed in the literature. This comparison shows that the BOFD not only suppresses noise and small-scale fronts, but also retains continuous fronts. | PING Bo SU Fenzhen MENG Yunshan FANG Shenghui DU Yunyan | 2014 | Acta Oceanologica Sinica2014，33，7： | 5 |
| 2 | Comparative analysis of upper ureteral stones (>15 mm) treated with retroperitoneoscopic ureterolithotomy and ureteroscopic pneumatic lithotripsy显示文摘 | YunYan Wang JianQuan Hou DuanGai Wen Jun OuYang JunSong Meng HaiJun Zhuang | 2010 | International Urology and Nephrology2010，，： | 2 |
| 3 | PHASE DIAGRAMS OF SYSTEMS SmCl_3-CaCl_2 AND SmCl_3-LiCl显示文摘The phase diagrams of binary systems SmCl3-CaCl2 and SmCl3-LiCl were determined byDTA and X-ray diffraction analysis.The system SmCl3-CaCl2 is of a simple eutectic typewith eutectic point of 55.8mol-% SmCl3 at 545℃.The system SmCl3-LiCl is of the typewith incongruent melting phase 2SmCl3·LiCl at peritectic point 434℃ and with eutecticpoint of 31.5 mol-% SmCl3 at 395℃. | ZHANG Yifeng MENG Bo GU Yunyan Northeast University of Technology,Shenyang,China Professor,Department of Chemistry,Northeast University of Technology,Shenyang 110006,China | 1992 | Acta Metallurgica Sinica(English Letters)1992，5，9： | 0 |
| 4 | Metal-Free Visible-Light-Induced Atom-Transfer Radical Addition Reaction of Alkenes/Alkynes with ICH_(2)CN显示文摘New blue-light promoted methods for the addition of iodoacetonitrile(ICH_(2)CN)to alkene/alkynes have been developed.The reaction led to the formation of cyanoalkylated products when conjugated alkene/styrene was used.In the case of alkynes and non-conjugated alkenes,iodoalkylation takes place furnishing the corresponding alkenyl iodides and alkyl iodides,respectively.Notably,trans-alkenyl iodides were obtained as the major product.A plausible reaction mechanism is also proposed. | Chunxiang Pan Yunyan Meng Yao Deng Bingjie Zhou Jingchao Chen Zhenxiu He Weiqing Sun Ruhima Khan Baomin Fan | 2022 | Chinese Journal of Chemistry2022，40，17： | 0 |
| 5 | 膀胱癌组织中MMP-2与TIMP-2 mRNA的表达及临床意义(英文)显示文摘Objective:The aim of the study was to investigate the expressions of matrix metalloproteinase-2(MMP-2) and tissue inhibitor of MMP-2(TIMP-2) mRNA in transitional cell carcinomas of bladder and discuss their clinical significances.Methods:Using RT-PCR and real time quantitative PCR(RQ-PCR) technique,the expressions of MMP-2 and TIMP-2 mRNA of 45 cases of bladder carcinoma(tumor group) and 10 cases of normal bladder tissue(control group) were analyzed.Results:MMP-2 and TIMP-2 were not expressed in control group.MMP-2 was expressed in 30 cases tumor samples and TIMP-2 was expressed in 26 cases.The expression of MMP-2 mRNA in non-muscle invasive bladder cancers and grade I cancers was lower than that in muscle invasive bladder cancers and grades II-III cancers respectively.The differences were statistically significant(P<0.05).The expression of MMP-2 in recurrent patients was higher than that in incipient patients.TIMP-2 mRNA expression decreased with grades and stage.The expression of TIMP-2 in non-muscle invasive bladder cancers and grade I cancers was higher than that in muscle invasive bladder cancers and grades II-III cancers respectively.There was statistical difference between two groups(P < 0.05).TIMP-2 expression in incipient patients was higher than that in recurrent patients,but the difference was not significant(P>0.05).Conclusion:These results suggest that MMP-2 and TIMP-2 play an important role in the invasion step of transitional cell carcinoma of bladder.MMP-2 may become a new approach to the diagnosis of bladder carcinoma. | Yunyan Wang Junsong Meng Haijun Zhuang Jianquan Hou Duangai Wen | 2011 | The Chinese-German Journal of Clinical Oncology2011，10，5： | 0 |
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