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运城盆地不同构造单元埋藏与热演化史对比研究
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作者 ahmed khaled 李荣西 +2 位作者 吴小力 赵帮胜 李得路 《地质论评》 CAS CSCD 北大核心 2019年第S01期139-140,共2页
沉积盆地的埋藏和热演化史研究对盆地分析研究和油气勘探具有重要意义(Zuo et al,2011;Hu et al,2001;Qiu et al,2012)。在沉积盆地的热演化史研究中,区分埋藏过程中的加热事件和抬升剥蚀期间造成的冷却事件尤为重要。(U-Th)/He定年方... 沉积盆地的埋藏和热演化史研究对盆地分析研究和油气勘探具有重要意义(Zuo et al,2011;Hu et al,2001;Qiu et al,2012)。在沉积盆地的热演化史研究中,区分埋藏过程中的加热事件和抬升剥蚀期间造成的冷却事件尤为重要。(U-Th)/He定年方法是一种放射性同位素低温定年方法,具有低温敏感性(磷灰石封闭温度为70℃,锆石封闭温度为180℃)和精度高的特点,是近年来国际上新发展起来的定量研究构造抬升冷却史、确定地层剥蚀厚度、剥蚀速率最有效方法。 展开更多
关键词 埋藏与热演化史 剥蚀 运城盆地
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结晶力驱动纤维状晶体生长:宁南盆地清水营组背生式纤维状石膏脉体的岩相学证据
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作者 赵帮胜 李荣西 +4 位作者 吴小力 覃小丽 赵迪 刘齐 ahmed khaled 《矿物岩石地球化学通报》 CAS CSCD 北大核心 2020年第2期293-303,共11页
背生式纤维状脉体是一种发育在低渗透泥岩中具有明显延长晶体形态的矿物脉体,其成因机制存在争议。通过对宁南盆地清水营组中背生式纤维状石膏脉体详细的野外和岩相学观察,结合脉体开启和延伸的运动学和动力学特征,研究了脉体的成因机... 背生式纤维状脉体是一种发育在低渗透泥岩中具有明显延长晶体形态的矿物脉体,其成因机制存在争议。通过对宁南盆地清水营组中背生式纤维状石膏脉体详细的野外和岩相学观察,结合脉体开启和延伸的运动学和动力学特征,研究了脉体的成因机制。结果显示,单个背生式纤维状石膏脉体由中间带和纤维状带组成,二者特征明显不同,指示不同的生长机制。中间带是脉体开启的原始位置,充填块状石膏晶体和大量围岩碎片、条带,表明背生式纤维状石膏脉体的中间带是通过裂开-愈合机制形成。纤维状带由平行对齐的纤维状石膏晶体组成,单个晶体具有光学连续性,相邻晶体之间没有明显的生长竞争,表明纤维状晶体生长过程中没有发生破裂。我们推测是结晶力造成了局部应力场扰动,使脉体尖端偏离了脉体延伸方向,并逐渐向相邻脉体弯曲生长,最终导致了脉体相互作用区域围岩变形和脉体纤维状带厚度差异。 展开更多
关键词 背生式纤维状石膏脉体 结晶力 流体超压 宁南盆地 清水营组
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Internet of Medical Things (IoMT): Overview, Taxonomies, and Classifications
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作者 ahmed E. khaled 《Journal of Computer and Communications》 2022年第8期64-89,共26页
Recent research efforts have created rapid advances in the field of the Internet of Things (IoT) in terms of communication protocols, sensing technologies, computing capabilities, next-generation wireless technologies... Recent research efforts have created rapid advances in the field of the Internet of Things (IoT) in terms of communication protocols, sensing technologies, computing capabilities, next-generation wireless technologies, big data and AI techniques, and on-device, edge, cloud processing. These advances created a paradigm shift and generated a wide range of potential opportunities for a new major field known as the Internet of Medical Things (IoMT), as well as subfields like mobile Health (mHeatlh) and digital or electronic Health (eHealth). This paper provides an overview of the Internet of Medical Things and presents a classification to define the primary users and their roles and involvement in smart healthcare systems. The paper then presents taxonomy on the deployment scales of different healthcare environments, from personal healthcare to widescale connected healthcare systems. The overview also discusses the n-tier architecture of IoMT, then presents a set of taxonomies and classifications on the different medical devices used in healthcare systems as well as non-medical devices used to provide context-aware information about the surrounding environment. The paper then concludes the overview by presenting the different healthcare-related applications and services, a comparison between traditional and smart healthcare systems, and the different obstacles and challenges in the field of IoMT to guide the development of new services and devices. Many survey papers in the literature focused on similar points;however, up to our knowledge, this is the first paper to present taxonomies and classifications for these IoMT essential topics. The presented taxonomies and classifications provide the manufacturers of medical devices and the developers of healthcare services a deeper understanding of the healthcare systems’ landscape to address different requirements and demands. 展开更多
关键词 IoMT Medical Devices Applications Services MHEALTH EHEALTH Connected Healthcare
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