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Investigation on Inorganic Pollution Level in Surface Sediments of Naples and Salerno Bay

Computational Water, Energy, and Environmental Engineering 2013年第2期2卷 36-40页

作者： Menghan Wang Benedetto De Vivo stefano albanese Annamaria Lima Wanjun Lu Flavia Molisso Marco Sacchi C.N.R. Istituto Geomare Sud Napoli Italy Department of Marine Science Faculty of Earth Resource China University of Geosciences Wuhan China Dipartimento di Scienze della Terra Università di Napoli Federico II Napoli Italy

In this study, superficial marine sediments collected from 96 sampling sites were analyzed for 53 inorganic elements. Each sample was digested in aqua regia and analyzed by ICP-MS. A developed multifractal inverse distance weighted (IDW) interpolation method was applied for the compilation of interpolated maps for both single element and factor scores distributions. R-mode factor analysis have been performed on 23 of 53 analyzed elements. The 3 factor model, accounting 84.9% of data variability, were chosen, The three elemental associations obtained have been very helpful to distinguish anthropogenic from geogenic contribution. The aim of this study is to distinguish distribution patterns of pollutants on the sea floor of NaplesandSalernobays. In general, local lithologies, water dynamic and anthropogenic activities determine the distribution of the analyzed elements. To estimate pollution level in the area, Italian guidance, Canadian sediment quality guidance and Long’s criteria are chosen to set the comparability. As the results shows, arsenic and lead may present highly adverse effect to living creatures.

关键词： Pollution Level Compositional Data Analysis Factor Analysis Napoli and Salerno Gulf

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应用机器学习在阿舍勒矿区外围的找矿预测

应用机器学习在阿舍勒矿区外围的找矿预测

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首届全国矿产勘查大会

作者：郑超杰罗先熔刘攀峰文美兰 stefano albanese 合肥工业大学资源与环境工程学院 Department of Earth Environment and Resources Sciences University of Naples Federico Ⅱ 桂林理工大学地球科学学院桂林理工大学环境科学与工程学院

新疆阿舍勒铜锌矿位于阿尔泰造山带西南缘阿舍勒盆地内,是典型的VMS型矿床。鉴于阿舍勒铜锌矿床具有埋藏深、开采难度大、采矿维护成本高等特点,伴随着矿山开采对探明资源储量不断消耗,深边部矿体品位下降,对阿舍勒铜锌矿床深部及外围... 详细信息

新疆阿舍勒铜锌矿位于阿尔泰造山带西南缘阿舍勒盆地内,是典型的VMS型矿床。鉴于阿舍勒铜锌矿床具有埋藏深、开采难度大、采矿维护成本高等特点,伴随着矿山开采对探明资源储量不断消耗,深边部矿体品位下降,对阿舍勒铜锌矿床深部及外围找矿任务已迫在眉睫。本研究以矿产资源定量评价体系为指导,在充分收集研究区地质资料及前人研究成果的基础上,归纳矿区成矿地质规律及控矿地质要素;引入成份数据分析,对阿舍勒矿区外围岩石地球化学9个微量元素数据进行研究,运用分形理论及奇异性理论分离、识别并提取地表原生晕弱异常;量化矿区控矿地质要素,结合地球化学指标,构建研究区综合信息找矿模型;借助不同机器学习算法（支持向量机、随机森林、加权K最近邻）对矿区外围开展找矿预测,并对预测结果予以评估;结果表明:（1）9类岩石地球化学微量元素数据经成分数据变换,还原了元素的真实空间分布;以稳健主成分方法探讨元素组合特征,得出（1）Cu-Zn-Co及（2）Pb-Mo-Ag-As-Au-Sb两组矿化组合,分别对应矿床喷流沉积及变质热液叠加改造两个成矿阶段。（2）对常规地球化学数据处理方法难以识别的弱异常,以局部奇异性理论识别、提取,充分挖掘地球化学数据中隐藏的与成矿紧密相关的弱异常信息,对未知区找矿具有较强指导意义。（3）通过系统了解矿床成因及成矿规律,归纳总结矿区控矿地质要素包括:地层控矿、构造控矿（断裂,褶皱,构造交汇）、岩体控矿、岩体-地层接触带控矿、围岩蚀变带控矿、古火山机构控矿在内的6个地质要素;在此基础上,得出各控矿地质要素最佳缓冲距离,量化各类与成矿密切相关的控矿地质要素信息,构建地质-地球化学综合信息找矿预测模型。（4）对基于支持向量机、随机森林及加权K最近邻三种监督学习算法构建的预测模型评估,并对各模型预测结果与矿区见矿钻孔相对应,得出三类机器学习模型找矿预测效果显著。以机器学习综合找矿预测结果为主,辅以岩石地球化学弱异常信息,结合研究区地质背景及矿区控矿地质要素重要度评价指标,在新疆阿舍勒铜锌矿区外围圈定3类共9个找矿预测区。

关键词：成分数据分析分形理论机器学习综合信息找矿预测新疆阿舍勒地区

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Arrhythmic Risk in Paediatric Patients Undergoing Surgical Repair for Pulmonary Atresia with Intact Ventricular Septum

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Congenital Heart Disease 2021年第1期16卷 85-94页

作者： Pietro Paolo Tamborrino Corrado Di Mambro Cecilia Marcolin Walter Vignaroli Giulia Cafiero Gianluca Brancaccio Sonia albanese Massimo stefano Silvetti Adriano Carotti Fabrizio Drago Paediatric Cardiology and Cardiac Arrhythmia Unit Department of Paediatric Cardiology and Cardiac SurgeryBambino GesùChildren’s HospitalIRCCSRomeItaly European Reference Network for Rare and Low Prevalence Complex Disease of the Heart Paediatric Cardiac Surgery Unit Department of Paediatric Cardiology and Cardiac SurgeryBambino GesùChildren’s HospitalIRCCSRomeItaly Sport Medicine Unit Department of Paediatric Cardiology and Cardiac SurgeryBambino GesùChildren’s HospitalIRCCSRomeItaly

Introduction:While previous studies only focused on the arrhythmic risk associated with specific correction strategies,this study evaluates this risk in a large cohort of paediatric patients with all phenotypes of PA-IVS after surgical ***:In this single centre observational cohort study,we retrospectively evaluated 165 patients with a diagnosis of PA-IVS and we excluded those with an exclusively percutaneous treatment,patients lost or with insufficient follow-up and those affected by other arrhythmic *** history and clinical outcomes were ***:86 patients were included in the study(54 male[62.8%],mean age 16.4±6.1 years),with median follow-up from definitive repair of 12.8 years(6.4–18.9 years).They underwent three different final repairs:23 patients(26.7%)univentricular palliation,43(50%)biventricular correction,and 20(23.3%)one and a half ventricle *** patients(15%)developed arrhythmia:6 patients(all the subgroups)sinus node disfunction(SND);2(biventricular repair)premature ventricular complexes;2(one and a half ventricle repair)non-sustained ventricular tachycardia;1(biventricular repair)intra-atrial re-entrant tachycardia;1(one and a half ventricle repair)supraventricular tachyarrhythmia;1(biventricular repair)atrial *** patients with SND needed a pacemaker *** Fontan circulation showed an association with SND,while the other two groups heterogeneous types of ***:The low arrhythmic risk is related to surgical repair,it does not appear to be associated with native cardiomyopathy,and it appears to increase with length of follow *** follow-up in specialized centres is necessary to make an early diagnosis and to manage the potential haemodynamic impact at medium-long term.

关键词： Pulmonary atresia with intact ventricular septum arrhythmic risk univentricular palliation Fontan circulation biventricular repair one and a half repair

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