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| 1 | Image segmentation of embryonic plant cell using pulse-coupled neural networks显示文摘Traditional image segmentation algorithms exhibit weak performance for plant cells which have complex structure. On the other hand, pulse-coupled neural network (PCNN) based on Eckhorn’s model of the cat visual cortex should be suitable to the segmentation of plant cell image. But the present theories cannot explain the relationship between the parameters of PCNN mathematical model and the effect of segmentation. Satisfactory results usually require time-consuming selection of experimental parameters. Mean-while, in a proper, selected parametric model, the number of iteration determines the segmented effect evaluated by visual judgment, which decreases the efficiency of image segmentation. To avoid these flaws, this note proposes a new PCNN algorithm for automatically segmenting plant embryonic cell image based on the maximum entropy principle. The algorithm produces a desirable result. In addition, a model with proper parameters can automatically determine the number of iteration, avoid visual judgment, | MA Yide DAI Rolan LI Lian WEI Lin | 2002 | Chinese Science Bulletin2002，47，2： | 28 |
| 2 | PCNN Model Analysis and Its Automatic Parameters Determination in Image Segmentation and Edge Detection显示文摘The Pulse coupled neural network(PCNN)has been widely used in digital image processing, but the automatic parameters determination is still a difficult aspect, which becomes the focus of PCNN research. In this paper, by the classical solution to difference equations and the time-domain analysis of PCNN model, we provide the expressions of the firing time and the firing period of neurons, and reveal the 'mathematics firing' phenomenon of PCNN. Based on this, we propose a new method of automatic parameters determination based on both eliminating the 'mathematics firing' and getting the highest efficiency of PCNN. We also present an edge detection model on the basis of image segmentation of PCNN and a method to determine automatically the parameters of the model. Experimental results prove the validity and efficiency of our proposed algorithm for the segmentation and the edge detection of the test images. | DENG Xiangyu MA Yide | 2014 | Chinese Journal of Electronics2014，23，1： | 20 |
| 3 | Effect of addition of Al-Si eutectic alloy on microstructure and mechanical properties of Mg-12wt%Li alloy显示文摘Mg-12 Li, Mg-12 Li-3(Al-Si), Mg-12 Li-7(Al-Si) and Mg-12 Li-9(Al-Si) alloys(all in wt%) were fabricated by high frequency vacuum induction melting in a water cooled copper crucible. After subsequently hotrolling and annealing, their microstructure and mechanical properties were investigated. Experimental results show that mechanical properties of Mg-12 Li alloy were significantly improved by the addition of Al-Si eutectic alloy. Mg-12 Li-7(Al-Si) alloy shows the highest strength of 196 MPa of the investigated alloys, which is about 1.8 times of the strength of Mg-12 Li alloy, and maintains high elongation of 27%.The improved mechanical property with addition of Al and Si in the eutectic proportion into Mg-12 Li alloy was attributed to the solution strengthening effect of A1 and precipitation hardening effect from AlLi and Mg_2 Si precipitates. | Zilong Zhao Xuegang Xing Jinyu Ma Liping Bian Wei Liang Yide Wang | 2018 | Journal of Materials Science & Technology2018，34，9： | 5 |
| 4 | Comparison of inorganic chemical compositions of atmospheric TSP,PM10 and PM2.5 in northern and southern Chinese coastal cities显示文摘To compare the inorganic chemical compositions of TSP(total suspended paniculate),PM_(10)(particulate matter with an aerodynamic diameter less than 10 μm) and PM_(2.5)(particulate matter with an aerodynamic diameter less than 2.5 μm) in southern and northern cities in China,atmospheric particles were synchronously collected in Dalian(the northern city)and Xiamen(the southern city) in spring and autumn of 2004.The mass concentrations,twenty-three elements and nine soluble ions were assessed.The results show that in Dalian,the mass concentrations of Mg,Al,Ca,Mn and Fe in spring were 4.0-10.1,2.6-8.0,4.1-12,1.2-3.6 and 2.9-7.9 times higher,respectively,than those in Xiamen.The dust storm influence is more obvious in Dalian in spring.However,in Xiamen,heavy metals accounted for 13.9%-17.9%of TSP,while heavy metals contributed to 5.5%-9.3%of TSP in Dalian.These concentrations suggest that heavy metal pollution in Xiamen was more serious.In addition,the concentrations of Na^+,Cl^-,Ca^(2+) and Mg^(2+) were higher in Dalian due to the influence of marine aerosol,construction activities and soil dust.The NO^(3-)/SO_4^(2-) ratios in Dalian(0.25-0.49) were lower than those in Xiamen(0.51-0.62),indicating that the contributions of vehicle emission to particles in Xiamen were higher.Coefficient of divergence values was higher than 0.40,implying that the inorganic chemical composition profiles for the particles of Dalian and Xiamen were quite different from each other. | Yiding Ma Zongshuang Wang Yufei Tan Shu Xu Shaofei Kong Gang Wu Xuefang Wu Hong Li | 2017 | Journal of Environmental Sciences2017，29，5： | 2 |
| 5 | Methane dehydro‐aromatization over Mo/MCM‐22 catalysts: a highly selective catalyst for the formation of benzene显示文摘 | Yuying Shu Ding Ma Longya Xu Yide Xu Xinhe Bao | 2000 | Catalysis Letters (-)2000，，12： | 2 |
| 6 | High proportion strontium-doped micro-arc oxidation coatings enhance early osseointegration of titanium in osteoporosis by anti-oxidative stress pathway显示文摘The excessive accumulation of reactive oxygen species(ROS)under osteoporosis precipitates a microenvironment with high levels of oxidative stress(OS).This could significantly interfere with the bioactivity of conventional titanium implants,impeding their early osseointegration with bone.We have prepared a series of strontium(Sr)-doped titanium implants via micro-arc oxidation(MAO)to verify their efficacy and differences in osteoinduction capabilities under normal and osteoporotic(high OS levels)conditions.Apart from the chemical composition,all groups exhibited similar physicochemical properties(morphology,roughness,crystal structure,and wettability).Among the groups,the low Sr group(Sr25%)was more conducive to osteogenesis under normal conditions.In contrast,by increasing the catalase(CAT)/superoxide dismutase(SOD)activity and decreasing ROS levels,the high Sr-doped samples(Sr75% and Sr100%)were superior to Sr25% in inducing osteogenic differentiation of MC3T3-E1 cells and the M2 phenotype polarization of RAW264.7 cells,thus enhancing early osseointegration.Furthermore,the results of both in vitro cell co-culture and in vivo studies also showed that the high Sr-doped samples(especially Sr100%)had positive effects on osteoimmunomodulation under the OS microenvironment.Ultimately,the collated findings indicated that the high proportion Sr-doped MAO coatings were more favorable for osteoporosis patients in implant restorations. | Xinkun Shen Kai Fang Kendrick Hii Ru Yie Zixin Zhou Yiding Shen Shuyi Wu Yue Zhu Zhennan Deng Pingping Ma Jianfeng Ma Jinsong Liu | 2022 | Bioactive Materials2022，7，4： | 2 |
| 7 | Review of pulse-coupled neural networks 显示文摘 | WANG Zhaobin MA Yide CHENG Feiyan | 2010 | Image and Vision Computing2010，28，1： | 1 |
| 8 | Review of pulse-coupled neural networks显示文摘 | Zhaobin Wang Yide Ma Feiyan Cheng | 2010 | Image and Vision Com- puting2010，28，： | 1 |
| 9 | Smart ZnS@C filler for super-anticorrosive self-healing zinc-rich epoxy coating显示文摘The zinc-rich epoxy cathodic protection coating is the most widely used anticorrosion material for marine steel.However,traditional conductive fillers lack the intelligent self-healing effect,which limits the long-term anticorrosion performance.Herein,with uniform carbon-coated ZnS(ZnS@C)nanoballs as the smart active release filler,we propose an anticorrosive and self-healing zinc-rich maleic anhydride epoxy coating.Due to the high pore filling efficiency of the nanoballs,the water vapor transmission rate of the coating with an initial corrosion efficiency of 99.92%and a low-frequency impedance of|Z|f=10mHz=3.88×10^(10) Ω·cm^(2),was reduced by 52%.The carbon-shell of the nanoball increases electron transmission paths in the coating and improves conductivity by nearly two orders of magnitude,which effectively activates more Zn-sites and extends the cathodic protection time.Moreover,once the steel-substrate undergoes regional corrosion,the SO_(4)^(2-)hydrolyzes from the ZnS-core of the nanoball and reacts with iron ions on the corroded area accurately and intelligently to fill the gap and self-heals into a new dense barrier layer(Fe_(2)(SO_(4))_(3),etc.),which significantly improves the shielding protection ability during the long-term usage of the coating.The effective anticorrosion time of the proposed coating could be up to 3,400 h. | Kai Yang Yixue Duan Guicheng Liu Guoyan Ma Hao Fu Xuyong Chen Manxiang Wang Gangqiang Zhu Woochul Yang Yiding Shen | 2022 | Nano Research2022，15，5： | 1 |
| 10 | Automated Image Segmentation Using Improved PCNN Model Based on Cross-entropy显示文摘 | Liu Qing Ma Yide Qian Zhibo | 2005 | Journal of Image and Graphics2005，10，5： | 1 |
| 11 | Review of pulse-coupled neural networks显示文摘 | Wang Zhaobin Ma Yide Cheng Feiyan | 2010 | Image and Vi- sion Computing2010，28，1： | 1 |
| 12 | A new automatic parameter setting method of a simplified PCNN for image segmentation显示文摘 | Chen Yuli Park Sung Kee Ma Yide | 2011 | IEEE Transactions on Neural Networks2011，22，6： | 1 |
| 13 | Review of pulse-coupled neural networks显示文摘 | Zhaobin Wang Yide Ma Feiyan Cheng Lizhen Yang | 2009 | Image and Vision Computing2009，，1： | 1 |
| 14 | Review of Pulse-coupled Neural Networks 显示文摘 | Wang Zhaobin Ma Yide Cheng Feiyan | 2010 | Image and Vision Computing2010，28，1： | 1 |
| 15 | Medical image fusion using m-PCNN 显示文摘 | Wang Zhaobin Ma Yide | 2008 | InfFusion2008，9，2： | 1 |
| 16 | Multi-focus image fu- sion using PCNN 显示文摘 | Zhaobin Wang Yide Ma Jason Gu | 2010 | Pattern Recognition2010，43，6： | 1 |
| 17 | A new automatic parameter setting method of a simplified PCNN for image segmentation 显示文摘 | Chen Yuli Park Sung-Kee Ma Yide | 2011 | IEEE Transactions on Neural Networks2011，22，6： | 1 |
| 18 | MAS NMR, ESR and TPD studies of Mo/HZSM‐5 catalysts: evidence for the migration of molybdenum species into the zeolitic channels显示文摘 | Ding Ma Weiping Zhang Yuying Shu Xiumei Liu Yide Xu Xinhe Bao | 2000 | Catalysis Letters2000，，3： | 1 |
| 19 | Muhi-foeus image fusion u- sing PCNN 显示文摘 | WANG Zhaobin MA Yide GU J | 2010 | Pattern Recognit2010，43，6： | 1 |
| 20 | A new automatic param- eter setting method of a simplified PCNN for image segmenta- tion显示文摘 | Yuli Chen Sung-Kee Park Yide Ma | 2011 | IEEE Transactions on Neural Networks2011，22，6： | 1 |
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