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5篇 您的检索式:作者名="E.Ali"
    题名 作者 年代 出处 被引量
1Methionine regulates copper/hydrogen peroxide oxidation products of Aβ显示文摘Feda E.Ali FrancesSeparovic Colin J.Barrow Robert A.Cherny FionaFraser Ashley I.Bush Colin L.Masters Kevin J.Barnham 2005J Peptide Sci2005,,6:1
2利用示踪剂模拟技术改进Snorre油田的油藏模型显示文摘北海Snorre油田使用水示踪剂模拟技术来描述中间断层油藏的特性。水示踪剂模拟采用的是能量技术研究院研制的数值模型 ,它是为模拟多孔渗流介质中示踪剂的流动而开发的。该模型可与CMG -STARS化学 热学模拟程序联合使用。示踪剂数据分析结果首先被用来确定该断层内 3口注入井与6口生产井之间的连通性 ,然后将水示踪剂模拟结果与相应的油田数据进行拟合以提高对油藏模型中含水率的历史拟合。示踪剂流出曲线历史拟合与使用示踪剂前后的含水率历史拟合相结合 ,大大提高了对油藏模型的认识。E.Ali 滕俊华 韩智颖 2002国外油田工程2002,18,5:0
3Mathematical Morphology View of Topological Rough Sets and Its Applications显示文摘This article focuses on the relationship between mathematical morphology operations and rough sets,mainly based on the context of image retrieval and the basic image correspondence problem.Mathematical morphological procedures and set approximations in rough set theory have some clear parallels.Numerous initiatives have been made to connect rough sets with mathematical morphology.Numerous significant publications have been written in this field.Others attempt to show a direct connection between mathematical morphology and rough sets through relations,a pair of dual operations,and neighborhood systems.Rough sets are used to suggest a strategy to approximatemathematicalmorphology within the general paradigm of soft computing.A single framework is defined using a different technique that incorporates the key ideas of both rough sets and mathematical morphology.This paper examines rough set theory from the viewpoint of mathematical morphology to derive rough forms of themorphological structures of dilation,erosion,opening,and closing.These newly defined structures are applied to develop algorithm for the differential analysis of chest X-ray images from a COVID-19 patient with acute pneumonia and a health subject.The algorithm and rough morphological operations show promise for the delineation of lung occlusion in COVID-19 patients from chest X-rays.The foundations of mathematical morphology are covered in this article.After that,rough set theory ideas are taken into account,and their connections are examined.Finally,a suggested image retrieval application of the concepts from these two fields is provided.Ibrahim Noaman Abd El Fattah El Atik Tamer Medhat Manal E.Ali 2023Computers, Materials & Continua2023,,3:0
4Attribute Reduction for Information Systems via Strength of Rules and Similarity Matrix显示文摘An information system is a type of knowledge representation,and attribute reduction is crucial in big data,machine learning,data mining,and intelligent systems.There are several ways for solving attribute reduction problems,but they all require a common categorization.The selection of features in most scientific studies is a challenge for the researcher.When working with huge datasets,selecting all available attributes is not an option because it frequently complicates the study and decreases performance.On the other side,neglecting some attributes might jeopardize data accuracy.In this case,rough set theory provides a useful approach for identifying superfluous attributes that may be ignored without sacrificing any significant information;nonetheless,investigating all available combinations of attributes will result in some problems.Furthermore,because attribute reduction is primarily a mathematical issue,technical progress in reduction is dependent on the advancement of mathematical models.Because the focus of this study is on the mathematical side of attribute reduction,we propose some methods to make a reduction for information systems according to classical rough set theory,the strength of rules and similarity matrix,we applied our proposed methods to several examples and calculate the reduction for each case.These methods expand the options of attribute reductions for researchers.Mohsen Eid Tamer Medhat Manal E.Ali 2023Computer Systems Science & Engineering2023,45,5:0
5阿曼一个裂缝碳酸盐岩油田的有效堵气处理显示文摘阿曼北部有一个裂缝碳酸盐岩的大油田,其地质条件和油藏驱动机理都很复杂。上部裂缝密集的层段是采用气/油重力驱(GOGD)方式开采的,而下部裂缝较少的层段采用了注水开发。气/油重力驱开采的生产井都是在薄油环中完井的直井和水平井。这些生产井有很多都面临着控制气波及的难题,因为有多种因素都可以引起气窜:(1)裂缝气-油界面的向下移动(裂缝油环变薄);(2)高导流能力裂缝的气窜(裂缝气窜);(3)井筒内油层封隔失败(机械性气窜);(4)基岩含气饱和度增大(基岩气窜)。为了找出几口GOGD油井气油比高于预期的原因,有一个多学科综合研究组研究了油井和油藏的动态以及裸眼井和套管井测井资料。本次研究采用的最重要测井资料是用于识别产气来源的存储式产量测井仪(MPLT)数据以及用于识别和描述裂缝的地层微成像测井仪(FMI)数据。 本文要介绍在水平裸眼井和垂向套管井中封堵有害气流的成功经验。对于衬管外油层封隔效果很差的水平井,采用了新的凝胶堵气工艺。与其他工艺相比,它具有多种优点:封堵荆的注入具有明确的目标(targeted placement);有全封堵(full-blocking)型强凝胶充填衬管外的流体通道;对于小裂缝和地层基岩,有惰性颗粒控制全封堵型凝胶的漏失;采用了可以从井中冲洗出来的易消除的凝胶进行驱替。 由于气油比的大幅度降低,使这些油井的石油产量持续增加。这是该油田在管理有害天然气产出方面的一次能力飞跃,预计能为本油田进一步提供改善天然气管理和油井动态的机会,对于采用GOGD开采方式的其它油田也是这样。E.Ali 谭云冬(译) 白振瑞(校) 2008石油地质科技动态2008,,2:0
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