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75篇 您的检索式:作者名="Maropoulos"
    题名 作者 年代 出处 被引量
1TOLERANCE ANALYSIS OF A PLANETARY GEAR REDUCER UNDER CAD CIRCUMSTANCE显示文摘Tolerance analysis of a planetary reducer is conducted. By focusing the serially-arrangedparts in the central line and setting an appropriate dimension as a 'gap', worst-case tolerance analysismethod and statistical (RSS) tolerance analysis are used, and then a tolerance-analyzing tool CE/TOLis introduced. The acceptable value range of the 'gap' is from 1.5 mm to 3.5 mm. While worst-caseanalysis rejects the design, RSS accepts it by a more realistic result with the law of probability accounted.With the help of CE/TOL and CAD software Pro/E, all components’ dimensions and tolerances areassigned and modified, and more detailed and more comprehensible results are gives out.Zhu Fumin Li Wanli Maropoulos P G 2005Chinese Journal of Mechanical Engineering2005,18,3:11
2Fecal calprotectin measurement is a marker of shortterm clinical outcome and presence of mucosal healing in patients with inflammatory bowel disease显示文摘AIM To evaluate the utility of fecal calprotectin(FC) in predicting relapse and endoscopic activity during follow-up in an inflammatory bowel disease(IBD) cohort.METHODS All FC measurements that were obtained during a 3-year period from patients with inflammatory bowel disease in clinical remission were identified. Data regarding the short-term(6 mo) course of the disease were extracted from the medical files. Exclusion criteria were defined as:(1) An established flare of the disease at the time of FC measurement,(2) Loss to follow up within 6 mo from baseline FC measurement, and,(3) Insufficient data on file. Statistical analysis was performed to evaluate whether baseline FC measurement could predict the short term clinical relapse and/or the presence of mucosal healing.RESULTS We included 149 [Crohn's disease(CD) = 113, Ulcerative colitis(UC) = 36, male = 77] IBD patients in our study. Within the determined 6-month period post-FC measurement, 47(31.5%) had a disease flare. Among 76 patients who underwent endoscopy, 39(51.3%) had mucosal healing. Baseline FC concentrations were significantly higher in those who had clinical relapse compared to those who remained in remission during follow up(481.0 μg/g, 286.0-600.0 vs 89.0, 36.0-180.8, P < 0.001). The significant predictive value of baseline median with IQR FC for clinical relapse was confirmed by multivariate Cox analysis [HR for 100μg/g: 1.75(95%CI: 1.28-2.39), P = 0.001]. Furthermore, lower FC baseline values significantly correlated to the presence of mucosal healing in endoscopy(69.0 μg/g, 30.0-128.0 vs 481.0, 278.0-600.0, in those with mucosal inflammation, median with IQR, P < 0.001). We were able to extract cut-off values for FC concentration with a high sensitivity and specificity for predicting clinical relapse(261 μg/g with AUC = 0.901, sensitivity 87.2%, specificity 85.3%, P < 0.001) or mucosal healing(174 μg/g with AUC = 0.956, sensitivity 91.9%, specificity 87.2%, P < 0.001). FC was better than CRP in predicting either outcome; nevertheless, having a pathological CRP(> 5 mg/L) in addition to the cutoffs for FC, significantly enhanced the specificity for predicting clinical relapse(95.1% from 85.3%) or endoscopic activity(100% from 87.2%). CONCLUSION Serial FC measurements may be useful in monitoring IBD patients in remission, as FC appears to be a reliable predictor of short-term relapse and endoscopic activity.Athanasios Kostas Spyros I Siakavellas Charalambos Kosmidis Anna Takou Joanna Nikou Georgios Maropoulos John Vlachogiannakos George V Papatheodoridis Ioannis Papaconstantinou Giorgos Bamias 2017World Journal of Gastroenterology2017,23,41:2
3CAD环境下的公差分析显示文摘本文讨论了在流行的CAD环境下进行零件和装配件公差分析。介绍了公差分析中的两个重要的分析方法。并用公差分析工具CE/TOL对某一行星减速箱中的一个间隙值进行了公差分析。极限状态分析法给出的结果是最保守的,而统计分析法从概率的角度出发,给出了更现实的结果。朱福民 郑惠强 Maropoulos P.G. 2004建设机械技术与管理2004,17,2:2
4CAPABLE: an aggregate process planning system for integrated product development 显示文摘Maropoulos P G Bradley H D 1998Journal of Materials Processing Teehnology1998,76,:2
5Modelling and optimization of novel laser multilateration schemes for high-precision applications显示文摘ZHANG Defen ROLT S MAROPOULOS P G 2005Measurement Science and Technology2005,16,12:1
6Review of research in tooling technology,process modeling and process planning Part I:Tooling andprocess modeling显示文摘Maropoulos P G 1995Computer Integrated ManufacturingSystems1995,8,1:1
7Integration of tool selectionwith design Part I:Feature creation and selection of opera-tions and tools显示文摘Maropoulos P G Baker R P 2000Journal of Materials Processing Technol-ogy2000,107,:1
8The Effect of Austenitising Temperature on Prior Austenite Grain Size in a Low-Alloy Steel 显示文摘Maropoulos S Karagiannis S Ridley N 2008Materials Science and Engineering2008,483,484:1
9Inclumons and Fracture Characteristies of HSLA Steel Forgings显示文摘Maropoulos S Ridley N 2004Material Science and Engineering2004,384,12:1
10Structural variations in heat treated low alloy steel forgings显示文摘Maropoulos S Ridley N Karagiannis S 2004Materials Science and Engineering A2004,380,:1
11Effects of Weld- ing Speed, Energy Input and Heat Source Distribution on Temperature Variations in Butt Joint Welding 显示文摘GERY D LONG H MAROPOULOS P 2005Journal of Materials Processing Technology2005,167,23:1
12Inclusions and Fracture Characteristics of HSLA Steel Forgings显示文摘Maropoulos S Ridley N 2004Materials Science and Engineering A2004,384,12:1
13Effects of welding speed, energy input and heat source distribution on temperature variations in butt joint welding 显示文摘Gery D Long H Maropoulos P 2005Journal of Materials Processing Technology2005,167,23:1
14Review of research in tooling technology,process modeling and process planning Part II:Process planning显示文摘Maropoulos P G 1995Computer Integrated Manufacturing Systems1995,8,1:1
15Inclusions and fracture characteristics of HSLA steel forgirigs 显示文摘Maropoulos S Ridley N 2004Materials Science and Engineering A2004,384,12:1
16Review of Research in Tooling Technology, Process Modeling and Process Planning: Part 1 显示文摘 1995Computer Integrated Manufacturing System1995,8,1:1
17A new paradigm in large-scale assembly-research priorities in measurement assisted assembly显示文摘Maropoulos P Muelaner J Summers M 2014The Interna tional Journal of Advanced Manufacturing Technology2014,70,14:1
18Structural variations in heat treated low alloy steel forgings显示文摘Maropoulos S Ridley N Karagiannis S 2004Materials Science and Engineering A2004,380,:1
19Open standard,open source and peer-to-peer tools and methods for collaborative product development显示文摘AZIA H GAO J MAROPOULOS P etal 2005Computers in Industry2005,56,3:1
20Review of the appliea-tion of flexible, measurement-assisted assembly technology in aircraft manufacturing显示文摘MEI Zhongyi MAROPOULOS P G 2014Proceedings of IMech E Part B: Journal of Engineering Manufacture2014,228,10:1
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