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| 1 | Bimetallic Pt-M (M = Cu, Ni, Pd , and Rh) nanoporous for HZ02 based arnperornetric biosensors显示文摘 | j anyasupab Metini Liu Chenwei Zhang Yuan | 2013 | Sens Actuat B: Chern2013，179，1： | 1 |
| 2 | Tribological behavior of co-textured cylinder liner-piston ring during running-in显示文摘The running-in of cylinder liner-piston rings(CLPRs)is the most important process that must be performed before a marine diesel engine can be operated.The quality of running-in directly affects the reliability of a CLPR.The surface texture of a CLPR has been proven to significantly affect its lubrication performance.In this study,the tribological behavior of a CLPR during running-in is investigated.Three types of surface textures are generated on the CLPR via laser processing:dimple texture on piston rings,groove texture on cylinder liners,and co-texture on both sides.Subsequently,a series of tests are performed on a slice tester.A load of 300 N(1.64 MPa) is applied,and two speeds(50 and 100 rpm)are adopted.The CLPR running-in quality is characterized based on three parameters,i.e.,the friction coefficient,contact resistance,and wear topography.Experimental results show that,compared with a non-textured surface,the three types of surface textures mentioned above improved the friction performance during running-in.The lubricant supply capacity of the dimple texture on the piston ring,as a mobile oil reservoir,is stronger than that of the groove texture on the cylinder liner serving as a static oil reservoir.By contrast,the wear resistance of the dimple texture,as a movable debris trap on the piston ring,is weaker than that of the groove texture on the cylinder liner,which serves as a static debris trap.It is demonstrated that the co-texture combines the advantages of dimples and groove textures.Compared with non-textured surfaces,the friction coefficient decreased the most at 100 rpm(44.5%),and the contact resistance improved the most at 50 rpm(352.9%).The coupling effect provides the surface with improved running-in quality by optimizing the tribological performance,particularly at the dead center.This study provides guidance for the tribological design and manufacturing of CLPR in marine diesel engines. | Chenwei MIAO Zhiwei GUO Chengqing YUAN | 2022 | Friction2022，10，6： | 1 |
| 3 | LncRNA MIR205HG expression predicts efficacy of neoadjuvant chemotherapy for patients with locally advanced breast cancer显示文摘To the Editor,Recent studies reported that lncRNA MIR205HG expression is associated with sensitivity to anti-epidermal growth factor receptor(EGFR)drug in lung cancer cells.However,few clinical studies reported the role of this molecule in breast cancer,particularly in the neoadjuvant setting.In this study,we explored the clinical significance of MIR205HG expression with its predictive and prognostic value for patients with locally advanced breast cancer. | Yaqian Xu Chenwei Yuan Jing Peng Liheng Zhou Yanping Lin Yaohui Wang Jie Zhang Jiayi Ma Wenjin Yin Jinsong Lu | 2022 | Genes & Diseases2022，9，4： | 0 |
| 4 | Robust Clustering with Topological Graph Partition显示文摘Clustering is fundamental in many fields with big data. In this paper, a novel method based on Topological graph partition(TGP) is proposed to group objects. A topological graph is created for a data set with many objects, in which an object is connected to k nearest neighbors. By computing the weight of each object, a decision graph under probability comes into being. A cut threshold is conveniently selected where the probability of weight anomalously becomes large. With the threshold,the topological graph is cut apart into several sub-graphs after the noise edges are cut off, in which a connected subgraph is treated as a cluster. The compared experiments demonstrate that the proposed method is more robust to cluster the data sets with high dimensions, complex distribution, and hidden noises. It is not sensitive to input parameter, we need not more priori knowledge. | WANG Shuliang LI Qi YUAN Hanning GENG Jing DAI Tianru DENG Chenwei | 2019 | Chinese Journal of Electronics2019，28，1： | 0 |
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