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| 1 | The Use of Data Mining Techniques in Rockburst Risk Assessment显示文摘目前在世界范围内的很多地下矿山,岩爆已经成为一个与矿山采矿生产密切相关的重要现象。深入理解这类现象,不仅有助于岩爆管理,而且还有可能节约采矿成本,减少人身伤亡事故。其中,实验室实验是深入研究岩爆机理的一个重要途径。在本文作者前期的研究中,已经建立了实验室岩爆实验数据库。与此同时,借助于数字采矿技术,也建立了岩爆最大应力和岩爆风险指数的预测模型。为实现基于矿山地质条件和矿山井巷建筑结构特性对岩爆类型即岩爆强度等级的准确预测,本文的重点是,基于对岩爆实例的分析来建立岩爆影响矩阵,明确岩爆现象的诱发因子,并厘清这些影响因子之间的相互关系。运用人工神经网络(ANN)和初始贝叶斯分类器等数字矿山技术,对矿山岩爆数据库进行了更深入的研究。最后给出了研究得出的各项结论。 | Luis Ribeiro e Sousa Tiago Miranda Rita Leal e Sousa Joaquim Tinoco | 2017 | Engineering2017，3，4： | 6 |
| 2 | N-Acetyltransferase 2 genetic polymorphisms and risk of colorectal cancer显示文摘AIM:To investigate the possible association between meat intake,cigarette smoking and N-acetyltransferase 2 (NAT2) genetic polymorphisms on colorectal cancer (CRC) risk.METHODS:Patients with CRC were matched for gender and age to healthy controls.Meat intake and cigarette smoking were assessed using a specific frequency questionnaire.DNA was extracted from peripheral blood and the genotypes of the polymorphism were assessed by polymerase chain reaction-restriction fragment length polymorphism.Five NAT2 alleles were studied (WT,M1,M2,M3 and M4) using specific digestion enzymes.RESULTS:A total of 147 patients with colorectal cancer (76 women and 90 men with colon cancer) and 212 controls were studied.The mean age of the two groups was 62 years.More than half the subjects (59.8% in the case group and 51.9% in the control group) were NAT2 slow acetylators.The odds ratio for colorectal cancer was 1.38 (95% CI:0.90-2.12) in slow acetylators.Although the number of women was small (n=76 in the case group),the cancer risk was found to be lower in intermediate (W/Mx) acetylators [odds ratio (OR):0.55,95% confidence interval (95% CI):0.29-1.02].This difference was not observed in men (OR:0.56,95% CI:0.16-2.00).Among NAT2 fast acetylators (W/W or W/Mx),meat consumption more than 3 times a week increased the risk of colorectal cancer (OR:2.05,95% CI:1.01-4.16).In contrast,cigarette smoking increased the risk of CRC among slow acetylators (OR:1.97,95% CI:1.02-3.79).CONCLUSION:The risk of CRC was higher among fast acetylators who reported a higher meat intake.Slow NAT2 acetylation was associated with an increased risk of CRC. | Tiago Donizetti da Silva Aledson Vitor Felipe Jacqueline Miranda de Lima Celina Tizuko Fujiyama Oshima Nora Manoukian Forones | 2011 | World Journal of Gastroenterology2011，17，6： | 3 |
| 3 | Full‐mouth disinfection as a therapeutic protocol for type‐2 diabetic subjects with chronic periodontitis: Twelve‐month clinical outcomes. A randomized controlled clinical trial显示文摘 | Vanessa R. Santos Jadson A. Lima Tamires S. Miranda Tiago E. D. Gon?alves Luciene C. Figueiredo Marcelo Faveri Poliana M. Duarte | 2013 | J Clin Periodontol2013，，2： | 1 |
| 4 | Modelling beam-to girder semi-rigid composite connection with angles including the effects of concrete tension stiffness显示文摘 | Tiago Jose Limoeiro de Oliveira Eduardo de Miranda Batista | 2009 | Engineering Structures2009，31，8： | 1 |
| 5 | Rockburst laboratory tests database - Application of Data Mining techniques显示文摘 | He Manchao L. Ribeiro e Sousa Tiago Miranda Zhu Gualong | 2014 | Engineering Geology2014，，： | 1 |
| 6 | Modelling beam-to-girder semi-rigid composite connection with angles including the effects of con- crete tension stiffness 显示文摘 | Tiago Jos6 Limoeiro de O1iveira Eduardo de Miranda Batista | 2009 | Engineering Structures2009，31，8： | 1 |
| 7 | Updating of the hierarchical rock mass rating(HRMR) system and a new subsystem developed for weathered granite formations显示文摘The RMR system is still very much applied in rock mechanics engineering context. It is based on the evaluation of six weights to obtain a final rating. To obtain the final rating a considerable amount of information is needed concerning the rock mass which can be difficult to obtain in some projects or project stages at least with accuracy. In 2007 an alternative classification scheme based on the RMR, the Hierarchical Rock Mass Rating(HRMR) was presented. The main feature of this system was the adaptation to the level of knowledge existent about the rock mass to obtain the classification of the rock mass since it followed a decision tree approach. However, the HRMR was only valid for hard rock granites with low fracturing degrees. In this work, the database was enlarged with approximately 40% more cases considering other types of granite rock masses including weathered granites and based on this increased database the system was updated. Granite formations existent in the north of Portugal including Porto city are predominantly granites. Some years ago a light rail infrastructure was built in the city of Porto and surrounding municipalities which involved considerable challenges due to the high heterogeneity levels of the granite formations and the difficulties involved in their geomechanical characterization. In this work it is intended to provide also a contribution to improve the characterization of these formations with special emphasis to the weathered horizons. A specific subsystem applicable to the weathered formations was developed. The results of the validation of these systems are presented and show acceptable performances in identifying the correct class using less information than with the RMR system. | Miranda Tiago e Sousa L.Ribeiro Tinoco Joaquim | 2014 | International Journal of Mining Science and Technology2014，24，6： | 1 |
| 8 | Newborn with a genital cystic lesion显示文摘Interlabial cysts in the newborn are rare findings and distinct entities are included in the differential diagnosis.Simple hymenal cysts are one of the most commonly reported and spontaneous regression frequently occurs.We report a case of a newborn with an introital cyst arising from the hymen. | Mafalda Cascais Patrícia Miranda Diana Coimbra Joaquim Tiago Raquel Henriques Rosa Ramalho | 2019 | World Journal of Pediatric Surgery2019，2，2： | 0 |
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