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| 1 | 基于卷筒纸胶印的印品在线缺陷检测系统显示文摘本文详细介绍了一种视觉系统,该系统可以实现对卷筒纸胶印过程中产生的印品缺陷进行检测和定位。具体来说,该系统能够对高速卷筒纸印刷进行实时监控,并且可在印刷过程中出现任何影响印品质量的故障(如结构缺陷、色彩偏差、漏字、墨点、墨杠等)时向操作人员发出警报。本文还介绍了机器视觉系统的硬件部分和用于彩色图像扫描及印品缺陷检测定位的图像处理算法。从本质上讲,该系统采用高速扫描算法检测图像的边缘和边界,利用线性和非线性的滤波器对动态大小、阈值和转换信息做进一步的分析。除了在实验室内进行实验以外,还建立了系统模型,系统模型可应用在卷筒纸印刷中,在真实条件下对模型的功能进行评价。将该系统安装在凹印机上进行实验,结果表明该机器视觉系统同样可以成功地对缺陷进行监控和检测。 | N.G. Shankar N. Ravi Z.W. Zhong | 2009 | 中国印刷与包装研究2009，1，1： | 2 |
| 2 | 在有煽动性、非煽动性的腹的疼痛显型的孩子的 interleukin-6 和桅杆房间的反的关系显示文摘 AIM: To investigate interleukin-6 (IL-6), mast cells, enterochromaffin cells, 5-hydroxytryptamine, and substance P in the gastrointestinal mucosa of children with abdominal pain. METHODS: Formalin-fixed paraffin-embedded gas-trointestinal biopsy blocks from patients (n = 48) with non-inflammatory bowel disease (irritable bowel syndrome and functional abdominal pain) and inflammatory bowel disease were sectioned and stained for IL-6, mast cells, enterochromaffin cells, 5-hydroxytryptamine, and substance P. All children had chronic abdominal pain as part of their presenting symptoms. Biopsy phenotype was confirmed by a pathologist, blinded to patient information. Descriptive statistics, chi-square, and independent sample t tests were used to compare differences between the inflammatory and non-inflammatory groups. RESULTS: The cohort (n = 48), mean age 11.9 years (SD = 2.9), 54.2% females, 90% Caucasian, was comprised of a non-inflammatory (n = 26) and an inflammatory (n = 22) phenotype. There was a significant negative correlation between substance P expression and mast cell count (P = 0.05, r = -0.373). Substance P was found to be expressed more often in female patient biopsies and more intensely in the upper gastrointestinal mucosa as compared to the lower mucosa. There were significantly increased gastrointestinal mucosal immunoreactivity to IL-6 (P = 0.004) in the inflammatory phenotype compared to non-inflammatory. Additionally, we found significantly increased mast cells (P = 0.049) in the mucosa of the non-inflammatory phenotype compared to the inflammatory group. This difference was particularly noted in the lower colon biopsies. CONCLUSION: The findings of this study yield preliminary evidence in identifying biomarkers of undiagnosed abdominal pain in children and may suggest candidate genes for future evaluation. | Wendy A Henderson Ravi Shankar Tara J Taylor Arseima Y Del Valle-Pinero David E Kleiner Kevin H Kim Nader N Youssef | 2012 | World Journal of Gastrointestinal Pathophysiology2012，3，6： | 2 |
| 3 | Fast clonal algorithm显示文摘 | NITESH KHILWANI ANOOP PRAKASH RAVI SHANKAR | 2008 | Engineering Applications of Artificial Intelligence2008，21，1： | 1 |
| 4 | Severe plastic deformation (SPD) and nostructured materials by machining显示文摘 | Srinivasan Swaminathan M Ravi Shankar Balkrishna C Rao | 2007 | Journal of Materials Science2007，42，1： | 1 |
| 5 | Optical orientation and rotation of trapped red blood cells with Laguerre-Gaussian mode显示文摘 | Raktim Dasgupta Sunita Ahlawat Ravi Shankar Verma | 2011 | Opt Exp2011，19，8： | 1 |
| 6 | Factors affecting long-term restenosis after carotid stenting for carotid atherosclerotic disease显示文摘 | Jai Jai Shiva Shankar Jingwen Zhang Marlise Santos Howard Lesiuk Ravi Mohan Cheemun Lum | 2012 | Neuroradiology2012，，12： | 1 |
| 7 | Efficiency measurement of fertilizer-manufacturing organizations usingFuzzy data envelopment analysis显示文摘The aim of the paper is to benchmark the performance of the Indian fertilizermanufacturing organizations based on the ranking of efficiencies using a fuzzy data envelopment analysis(FDEA).FDEA has been used to find the relative efficiency and ranking of the fertilizer-manufacturing organizations.The last few years’data have been converted into the fuzzy inputs and outputs as minimum,mean,and maximum values,respectively.The performance of the fertilizer manufacturing organizations is based on the output maximization model of DEA.The frontier organizations set the benchmark for the lagging organizations for further improvement in the performance.This method can also be used to incorporate the data of the several years for multiple inputs and outputs instead of consideration of data of only one year.The proposed approach in this study may help organizations to improve its efficiency to fulfill its goal. | Pravin Kumara Rajesh Kumar Singh Ravi Shankar | 2017 | Journal of Management Analytics2017，4，3： | 1 |
| 8 | Analyzing Ahematives in Reverse Logistics for End-of-life Computers: ANP and Balanced Scorecard Approach显示文摘 | Ravi V Shankar Tiwari M K | 2005 | Computers & Industrial Engineering2005，，48： | 1 |
| 9 | Analysis of interactions among the barriers of reverse logistics显示文摘 | V Ravi Ravi Shankar | 2005 | Technological Forecasting and Social Change2005，72，8： | 1 |
| 10 | Supply chain risk mitigation:modeling the enablers显示文摘 | Mohd Nishat Faisal D.K.Banwet Ravi Shankar | 2006 | 2006，，12： | 1 |
| 11 | Modeling Agility of Supply Chain显示文摘 | Ashish Agarwal Ravi Shankar M K Tiwari | 2007 | Industrial Marketing Management2007，36，4： | 1 |
| 12 | Selection of Logistics Service Provider:An Analytic,Network Process(ANP)Approach显示文摘 | Sanjay Jharkharia Ravi Shankar | 2007 | Omega2007，35，3： | 1 |
| 13 | Localized convexity subarachnoid haemorrhage-a sign of early cerebral venous sinus thrombosis显示文摘 | PANDA S PRASHANTHA DK RAVI SHANKAR S | 2010 | Eur J Neurol2010，17，10： | 1 |
| 14 | Microstructure and stability of nanocrystalline aluminum6061 created by large strain machining显示文摘 | Ravi Shankar M Srinivasan Chandrasekar Alexander H King | 2005 | Acta Materialia2005，53，： | 1 |
| 15 | Large strain deformation and ultra-fine grained materials by machining 显示文摘 | Swaminathan Srinivasan Shankar M Ravi Lee Seongyl | 2005 | Materials Science and Engineering A2005，，2005： | 1 |
| 16 | Selection of Logistics Service Pro- vider: An Analytic Network Process (ANP) Approach显示文摘 | Sanjay Jharkharia Ravi Shankar | 2007 | Omega2007，35，3： | 1 |
| 17 | Selection of a reverse logistics project for end-of-life computers: anp and goal programing approach显示文摘 | Ravi V Shankar R Tiwari M K | 2008 | International Journal of Production Research2008，46，17： | 1 |
| 18 | Severe plastic deformation (SPD) and nanostructured materials by machining显示文摘 | Srinivasan Swaminathan Shankar M Ravi Rao Balkrishna C | 2007 | Springer Science2007，42，： | 1 |
| 19 | Corrosion of zircaloy -4 and its welds in nitric acid medium显示文摘 | Ravi Shankar A Raju V R Narayana Rao M | 2007 | Corrosion Science2007，49，： | 1 |
| 20 | A fuzzy Programming approach for vendor selection problem in a supply chain 显示文摘 | Manoj Kumar Prem Vrat Ravi Shankar | 2004 | computers & industrial engineering2004，46，： | 1 |
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