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Investigation of a solid particle deposition velocity in drag reducing fluids with salinity

PETROLEUM RESEARCH 2024年第3期9卷 347-358页

作者： Obi, Chinemerem Rahman, Mohammad Azizur hassan, ibrahim Hasan, Rashid Texas A&M Univ Doha Qatar Texas A&M Univ CS College Stn TX 77840 USA

Optimal and cost-effective drilling operations in extended-reach horizontal wells depend on efficient solid cuttings removal from the borehole. Several solids-suspended multiphase processes such as crude petroleum transportation, separation, and processing of oil and gas streams also require the efficient removal of these solids. The terminal settling velocity (V-ts) of the solid particle is a vital parameter that controls the removal efficiency of these solids. In a drilling scenario when there is a hold on fluid circulation such as connection time, the accurate estimation of V-s provides the driller with time available to prevent solid deposition. In severe conditions, this can result in a stuck pipe, especially for extended-reach horizontal wells. In this work, both spherical and non-spherical particle deposition were experimentally investigated in several fluid rheology and salinity. Two concentrations (0.1 vol% and 0.05 vol%.) of partially-hydrolyzed polyacrylamide (PHPA) were used as a drag-reducing additive for water-based drilling mud. The PHPA drag-reducing fluid (reduced pressure loss) acts as a turbulence inhibitor. The PHPA polymer chain suppresses any turbulence in the flow, reducing the turbulent eddy viscosity. The effects of salinity (3wt.%NaCl and 3wt.%CaCl2 contamination) on solid particle settling velocity (V-s) in drag-reducing fluids were also investigated. Terminal velocity was achieved for all experiments and seemed to increase with increased diameter/sphericity. However, cases when this trend was not consistent were observed and therefore a new parameter of Phi (sphericity index x diameter) was proposed. V-s increases with Phi value for all cases. During drilling, PHPA also aids in sealing the fracture in the formation. With and without salt in the fluid, how lowering drag affected the settling velocity of solid particles (drill cuttings) could be observed. The settling velocity tests will be improved in drag-reducing PHPA solutions with the

关键词： Deposition velocity Drag reducing fluids Salinity Visualization Drilling SETTLING VELOCITY TERMINAL VELOCITY COEFFICIENT WATER PREDICTION TRANSPORT BEHAVIOR FIBER FALL

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Distribution characteristics and removal rate of antibiotics and antibiotic resistance genes in different treatment processes of two drinking water plants

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Frontiers of Environmental Science & Engineering 2024年第9期18卷 143-152页

作者： Jun Wang Mingtao Huang Bolin Li hassan ibrahim Mohamed Huanjie Song Gezi Li Ying Yu Han Zhang Weimin Xie School of Resource and Environmental Engineering Wuhan University of TechnologyWuhan 430070China Wuhan Lingang Economic and Technological Development Zone Service Industry Development Investment Group Co.Ltd. Wuhan 430040China Civil Engineering Department Faculty of EngineeringAssiut UniversityAssiut 71516Egypt Changjiang Basin Ecology Environment and Monitoring and Scientific Research Center Changjiang Basin Ecology and Environment AdministrationMinistry of Ecological EnvironmentWuhan 430010China

Emerging pollutants,such as antibiotics and antibiotic-resistance genes,are becoming increasingly important sources of safety and health *** water safety,which is closely related to human health,should receive more attention than natural water body ***,minimal research has been performed on the efficacy of existing treatment processes in water treatment plants for the removal of antibiotics and antibiotic resistance *** address this research gap,this study detected and analyzed six main antibiotics and nine antibiotic resistance genes in the treatment processes of two drinking water plants in *** were collected over three months and then detected and analyzed using ultra-high-performance liquid chromatography-tandem mass spectrometry and fluorescence *** total concentrations of antibiotics and antibiotic resistance genes in the influent water of the two water plants were characterized as December>March>*** precipitation and filtration processes of the Zou Maling Water Plant and Yu Shidun Water Plant successfully removed the *** ozone-activated carbon process increased the removal rate of most antibiotics to 100%.However,a large amount of antibiotic resistance gene residues remained in the effluents of the two water *** experiments demonstrated that the existing ozone-activated carbon processes could not effectively remove antibiotic resistance *** study provides a reference for the optimization of drinking water treatment processes for antibiotics and antibiotic resistance gene removal.

关键词： Antibiotics Antibiotics resistance genes Water treatment process unit Spatiotemporal distribution Removal efficacy

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A Framework for Driver DrowsinessMonitoring Using a Convolutional Neural Network and the Internet of Things

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Intelligent Automation & Soft Computing 2024年第2期39卷 157-174页

作者： Muhamad Irsan Rosilah hassan Anwar hassan ibrahim Mohamad Khatim Hasan Meng Chun Lam Wan Mohd Hirwani Wan Hussain School of Computing Telkom UniversityBandung40257Indonesia Faculty of Information Science and Technology Universiti Kebangsaan MalaysiaBangi43600Malaysia Department of Electrical Engineering College of EngineeringQassim UniversityAl-Gassim51411Saudi Arabia Graduated School of Business Universiti Kebangsaan MalaysiaBangi43600Malaysia

One of the major causes of road accidents is sleepy *** accidents typically result in fatalities and financial losses and disadvantage other road *** studies have been conducted to identify the driver’s sleepiness and integrate it into a warning *** studies have examined how the mouth and eyelids ***,this limits the system’s ability to identify drowsiness ***,this study designed an Accident Detection Framework(RPK)that could be used to reduce road accidents due to sleepiness and detect the location of *** drowsiness detectionmodel used three facial parameters:Yawning,closed eyes(blinking),and an upright head *** model used a Convolutional Neural Network(CNN)consisting of two *** initial phase involves video processing and facial landmark coordinate *** second phase involves developing the extraction of frame-based features using normalization *** these phases used OpenCV and *** dataset contained 5017 images with 874 open eyes images,850 closed eyes images,723 open-mouth images,725 closed-mouth images,761 sleepy-head images,and 1084 non-sleepy head *** dataset of 5017 images was divided into the training set with 4505 images and the testing set with 512 images,with a ratio of 90:*** results showed that the RPK design could detect sleepiness by using deep learning techniques with high accuracy on all three parameters;namely 98%for eye blinking,96%for mouth yawning,and 97%for head ***,the test results have provided an overview of how the developed RPK prototype can accurately identify drowsy *** findings will have a significant impact on the improvement of road users’safety and mobility.

关键词： Drowsy drivers convolutional neural network openCV microprocessor face detection

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Exoscopy of Detrital Zircons from Niamey Neoproterozoic Sandstones (Eastern Edge of the West African Craton, Southwestern Niger): Interpretation of Detrital Sediments Provenance

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Open Journal of Geology 2024年第5期14卷 617-628页

作者： hassan ibrahim Maharou Karimou Laouali Idi Diafarou Alzouma Amadou Salissou Abdoul Ganiou Amadou Gnissa Sidibé Moussa Konaté Department of Geology Faculty of Science and Techniques Abdou Moumouni University Niamey Niger Department of Life and Earth Sciences Ecole Normale Sup&#233rieure (ENS) Abdou Moumouni University Niamey Niger

This study focuses on exoscopic analyses of detrital zircon grains of Archean and Paleoproterozoic age, contained in the sediments from the Niamey Neoproterozoic sandstones (Niamey region), with a view to confirming the sediments sources already proposed (Kénéma-Man domain for Archean-age zircons and Baoulé Mossi domain for Paleoproterozoic-age zircons). Exoscopic analysis reveals that Archean zircon grains are more corroded, with rounded to sub-rounded shapes, while Paleoproterozoic zircon grains are less corroded and mostly angular in shape. The strong corrosion of Archean zircon grains, implying long-distance transport, is consistent with the remoteness of the Kenema-Man domain which are the source these sediments. The fact that the Paleoproterozoic zircon grains show little or no wear implies a proximal source of sediments, corresponding to the Baoulé Mossi domain.

关键词： Exoscopic Analysis Detrial Zircon Grains U-Pb Ages Niamey Neoproterozoic Sandstones Niamey Region

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Effect of Aging on the Toughness of Austenitic and Duplex Stainless Steel Weldments

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Journal of Materials Science & Technology 2010年第9期26卷 810-816页

作者： Omyma hassan ibrahim ibrahim Soliman ibrahim Tarek Ahmed Fouad Khalifa Metallurgy Dept. Nuclear Research CentreAtomic Energy Authority(Egypt) Nuclear Safety Centre Atomic Energy Authority(Egypt) Shoubra Faculty of Engineering Benha University

In the present study,the effect of aging heat treatment at 650,750,and 850？C on the impact toughness of 316L austenitic stainless steel,2205 duplex stainless steel and their weldments has been *** process was conducted using the TIG（tungsten inert gas） welding *** impact testing,at room temperature,was employed to determine the effect of aging treatment on the impact properties of investigated *** treatment resulted in degradation in the impact toughness as demonstrated by the reduction in the impact fracture energy and deformation parameters（strain hardening capacity,fracture deffection,and crack initiation and propagation energy）.The degree of embrittlement was more noticeable in duplex stainless steel parent and weld-metal than in 316L stainless steel and became greater with the increase of aging *** degradation in impact toughness was discussed in relation to the observed precipitation of the intermetallic sigma phase in the microstructure of the stainless steel weldments and the corresponding fracture surface morphology.

关键词： Austenitic and duplex stainless steels Aging Instrumented impact Toughness

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A Comparative Study on Punitive Damages in IP Law between China and the US

A Comparative Study on Punitive Damages in IP Law between Ch...

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作者： Mohamed Abdulatti ibrahim hassan 华东政法大学

学位级别：硕士

在中国知识产权法关于惩罚性赔偿的相关法律修改及司法解释之后,惩罚性赔偿成为最近提出的最重要的话题之一。这些修订对于中国在过去二十年外国投资引入的背景下,保持经济发展和快速增长至关重要。对中国而言,这一发展还需要在法律和... 详细信息

在中国知识产权法关于惩罚性赔偿的相关法律修改及司法解释之后,惩罚性赔偿成为最近提出的最重要的话题之一。这些修订对于中国在过去二十年外国投资引入的背景下,保持经济发展和快速增长至关重要。对中国而言,这一发展还需要在法律和立法上采取行动,切实保护投资者的权利,并鼓励投资者增加在中国的投资。中国知识产权保护法的要点之一是无法保护发明所有者和商标所有者。这也是经济增长的一个重大障碍。中国知识产权法采用惩罚性赔偿制度传递的信息是,让投资者、资本家和发明所有者放心,他们有权使用和利用他们的发明,并在任何其他人违反的情况下保护自己的权利。对于受侵害的一方,诉诸法律之后,赔偿将在一定程度上弥补利润的损失。本文介绍了美国立法中的惩罚性赔偿制度以及该法在美国法院的适用情况,鉴于美国早就采用了惩罚性赔偿制度,通过介绍相关法律的发展和修订,以及司法解释和案件中的实践情况,来回顾该制度在美国立法中所经历的阶段。进而将其与中国立法中的惩罚性赔偿进行比较,再强调其在知识产权法应用方面限制和过度使用惩罚性赔偿存在的缺陷。并试图引出美国立法中的弱点和负面观点,进而增加对中国立法更准确的了解。规避了美国立法在惩罚性赔偿方面犯下的错误,进而提出更有价值的观点和评论。

关键词：惩罚性赔偿知识产权法商标法故意侵权

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Effect of speed hump characteristics on pavement condition

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Journal of Traffic and Transportation Engineering(English Edition) 2017年第1期4卷 103-110页

作者： Talaat Ali Abdel-Wahed ibrahim hassan Hashim Department of Civil Engineering Faculty of EngineeringSohag University Department of Civil Engineering Faculty of EngineeringMenoufia University

Speed humps are the most common type of traffic calming devices due to their low cost and easy installation. However, in many Egyptian roads, considerable number of these humps is randomly placed without proper engineering studies and justifications. Deteri- oration of pavement condition is observed near these humps. This paper presents a case study applied to collect and analyze visual inspection data for the reason of evaluating the impact of speed humps on pavement condition on intercity rural roads. The paper used 52 speed humps located in an intercity two-lane, two-way road that connects two cities, Tahta and Gerga, in Upper Egypt. The total length of this road is about 34 km. Pavement condition index （PCI）, in road sections, near speed humps in the two directions of travel were calculated from the visual inspection measurements. The characteristics of each speed hump （width, height, and distance from preceding hump） were measured. Using statistical analyses, the correlations between the pavement conditions and hump char- acteristics were examined. Regression analysis models were developed to represent the relationships between pavement conditions and hump characteristics. Generally, the re- sults proved that the pavement conditions are greatly influenced by the presence of speed humps and hump characteristics.

关键词： Speed hump Pavement condition Pavement condition index (PCI)Two-lane road Regression analysis

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Exoscopy of Detrital Zircons from Niamey Neoproterozoic Sandstones (Eastern Edge of the West African Craton, Southwestern Niger): Interpretation of Detrital Sediments Provenance

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Open Journal of Geology（地质学期刊） 2024年第5期 617页

作者： hassan ibrahim Maharou Karimou Laouali Idi Diafarou Alzouma Amadou Salissou Abdoul Ganiou Amadou Gnissa Sidibé Moussa Konaté

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公路几何特征对通行能力影响分析(英文)

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交通运输系统工程与信息 2012年第5期12卷 65-75页

作者： HASHIM ibrahim hassan ABDEL-WAHED Talaat Ali 曼努菲亚大学土木工程系埃及曼努菲亚索哈杰大学土木工程系埃及索哈杰

通行能力预测是公路设施规划、设计与运营中的基础环节.本文基于埃及曼努菲亚省12条农村双车道路段数据,研究了公路线形等几何特征对通行能力的影响以及线形由切线变为平曲线时通行能力的损失.所选取的路段线形包括直线和随后的平曲线.... 详细信息

通行能力预测是公路设施规划、设计与运营中的基础环节.本文基于埃及曼努菲亚省12条农村双车道路段数据,研究了公路线形等几何特征对通行能力的影响以及线形由切线变为平曲线时通行能力的损失.所选取的路段线形包括直线和随后的平曲线.同时,采集了各路段上车流量及速度数据,利用基于基本图的外推法研究流量和密度关系.路段上不同车型的车辆均转换为小客车当量.此外,针对不同情形(切线、平曲线及对应流量损失),分别建立了最佳回归模型.结果表明,切线型道路的关键自变量是路宽、肩宽以及切线长;平曲线道路的关键变量是曲线半径和路宽.通行能力和几何特征关系最佳模型的自变量为曲线半径.本文的模型可用于分析评价农村双车道道路的通行能力,尤其是评价文中所研究路段的通行能力.

关键词：公路运输通行能力公路几何学平曲线流量-密度关系回归分析

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Significant of BER Detection Using Hybrid Genetic Algorithm for CDMA System

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Journal of Computer and Communications 2018年第5期6卷 31-39页

作者： Anwar hassan ibrahim Electrical Engineering Department Qassim University Qassim Saudi Arabia

In this paper, CDMA system is considered to enhance the detection techniques, which uses genetic algorithm practice to introduce an optimum multi-user indicator based on bit synchronization for code division multiple access via high level of noise (Gaussian channel). The proposed method presented in this paper is to define the transmitted bit sequence and optimization in the receiver using hybrid GA scheme, which considered a complicated method to match the users’ bits correlation metric. A Matlab simulation results shows that, the BER performance under certain condition of SNR for multi-user detector methods indicate the single-user convolution bound, despite the fact that a lower complication as associated to the best multi-user detection. Particularly the hybrid GA structure is more suitable for a high number of users and suitable for CDMA system enhancement in order to perform lower computational complexity in shorter time period.

关键词： CDMA GA BER SNR

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