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Interactions of ferro-nanoparticles(hematite and magnetite) with reservoir sandstone: implications for surface adsorption and interfacial tension reduction

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Petroleum Science 2020年第4期17卷 1037-1055页

作者： ab.ullah musa ali Noorhana Yahya Saima Qureshi Universiti Teknologi PETRONAS 32610 Seri IskandarPerakMalaysia Geology Department Bayero UniversityKanoKanoNigeria

There are a few studies on the use of ferro-nanofluids for enhanced oil recovery,despite their magnetic properties;hence,it is needed to study the adsorption of iron oxide(Fe2 O3 and Fe3 O4) nanoparticles(NPs) on rock *** is important as the colloidal transport of NPs through the reservoir is subject to particle adsorption on the rock *** dynamics simulation was used to determine the interfacial energy(strength) and adsorption of Fe2 O3 and Fe3 O4 nanofluids infused in reservoir *** transform infrared spectroscopy and X-ray photon spectroscopy(XPS) were used to monitor interaction of silicate species with Fe2 O3 and Fe3 *** spectral changes show the variation of dominating silicate anions in the ***,the XPS peaks for Si,C and Fe at 190,285 and 700 eV,respectively,are less distinct in the spectra of sandstone aged in the Fe3 O4 nanofluid,suggesting the intense adsorption of the Fe3 O4 with the crude *** measured IFT for brine/oil,Fe2 O3/oil and Fe3 O4/oil are 40,36.17 and 31 mN/m,***3 O4 infused with reservoir sandstone exhibits a higher silicate sorption capacity than Fe2 O3,due to their larger number of active surface sites and saturation magnetization,which accounts for the effectiveness of Fe3 O4 in reducing IFT.

关键词： Magnetite and hematite nanoparticles Rock surface adsorption Molecular dynamics simulation Interfacial tension(IFT)

Quartz dissolution in a single phase-high pH Berea sandstone via alkaline injection

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Energy Geoscience 2021年第3期2卷 181-188页

作者： ab.ullah musa ali Mohammed Yerima Kwaya abubakar Mijinyawa Department of Geology Bayero University Kano(BUK)KanoNigeria

A common assertion is that alkaline solution aids oil mobilization by generating in situ soap,or by lowering interfacial tension(IFT)to ultra-low values in synergy with *** study takes a different approach that involves the alkaline dissolution of detrital quartz grains of sandstone reservoirs to create pathways for oil migration and *** dissolution via alkaline injection will result in changes in permeability and *** study performed high-pH core flooding on Berea sandstones using core displacement *** molybdate spectrophotometry was applied to measure the amount of dissolved *** and confining pressure variations were also *** molar concentration of NaOH varied at 0.5 M and 1.0 *** results show higher initial silica dissolution for 0.5 M NaOH(˃200mg/L)compared to 1.0 M NaOH(20 mg/L),which can be attributed to the presence of pre-existing dissolved silica and precipitates in the system prior to the first injection ***,a steady quartz dissolution rate of 0.4 mg/L/hr for 20 h was only achieved at 1.0 ***,an abrupt drop in quartz dissolution to below 0 mg/L was recorded for 0.5 M NaOH after 3 h of *** higher molar concentration of injected alkaline solution,both confining and inlet pressures increased from 8 and 5 bars to 12 and 11 bars as a result of the increased secondary phase of(hydr)oxides or precipitates in the ***,it can be inferred that the effect of alkaline solution on quartz dissolution is strongly dependent on molar concentration.

关键词： Alkaline injection Core flooding Dissolved silica Quartz Petroleum recovery

马来西亚沙捞越盆地东北部第三系石英表面形态特征--对古沉积环境与储集层质量的指示意义

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石油勘探与开发 2014年第6期41卷 697-704页

作者： ab.ullah musa ali Eswaran Padmanabhan 马来西亚国油科技大学地球科学与石油工程学院地球科学系

基于马来西亚沙捞越(Sarawak)盆地Belait组和Lambir组第三系露头样品,分析其石英表面形态,揭示其颗粒表面结构缺陷(源自风化作用和成岩作用)、古沉积环境以及储集层质量之间的相关关系。研究利用岩石薄片进行矿物识别,并观察粒径和结构... 详细信息

基于马来西亚沙捞越(Sarawak)盆地Belait组和Lambir组第三系露头样品,分析其石英表面形态,揭示其颗粒表面结构缺陷(源自风化作用和成岩作用)、古沉积环境以及储集层质量之间的相关关系。研究利用岩石薄片进行矿物识别,并观察粒径和结构;利用扫描电镜对样品的表面形态进行表征,以展现石英颗粒表面结构的变化。Belait组砾岩的扫描电镜图像表明其以自形石英晶体为主,常见机械风化缺陷,例如线性断口、贝壳状断口以及擦痕;而Lambir组砂岩中却常见化学风化特征,例如化学蚀痕、蚀坑、溶解坑以及刻痕。基于岩石学、扫描电镜以及CT扫描图像分析的储集层质量评价结果表明,研究区Belait组为高能海岸沉积,潮控特征明显,Lambir组为浅海—三角洲沉积,浪控特征明显;Belait组和Lambir组的储集层质量较差,但Belait组的孔隙度略高于Lambir组。

关键词：沙捞越盆地石英表面形态扫描电镜微观结构古沉积环境储集层质量

Anti-irritable Bowel Syndrome Syrup Improves Constipation-Predominant Irritable Bowel Syndrome:A Randomized,Placebo-Controlled Trial

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Chinese Journal of Integrative Medicine 2020年第10期26卷 729-735页

作者： Hamide Khorram Pazhouh Seyyd musa al-Reza Hosseini ali Taghipour Shokouhsadat Hamedi Mohammadreza Noras Persian Medicine Faculty of Persian and Complementary MedicineMashhad University of Medical SciencesMashhad(***)Iran Department of Gastroenterology Faculty of MedicineMashhad University of Medical SciencesMashhad(***)Iran Faculty of Health Mashhad University of Medical SciencesMashhad(***)Iran Department of Persian Pharmacy School of Persian and Complementary MedicineMashhad University of Medical SciencesMashhad(***)Iran Persian Traditional Medicine Faculty of Persian Traditional and Complementary MedicineMashhad University of Medical SciencesMashhad(***)Iran

Objective To evaluate the efficacy and safety of administration of the formulated Persian herbal syrup on improving the symptoms of patients with constipation-predominant irritable bowel syndrome(IBS-C).Methods This study was conducted in 70 patients with IBS-C,who were recruited from 3 medical centers in Mashhad,Iran,from November 2017 to August *** patients were randomly assigned to 2 groups including treatment and placebo groups by block randomization,35 cases in each *** in the treatment group received 15 mL of anti-IBS syrup,thrice daily for 6 weeks and followed up for 4 *** syrup was also prepared through similar instruction,BP syrup without plant extract was *** outcome induding IBS Symptom Severity Scale(IBS-SSS)questionnaire and secondary outcomes in terms of Hospital Anxiety and Depression(HADS)questionnaires,the Bristol Stool Form Scale(BSFS)were completed and evaluated at weeks 6 and 10,*** indices were collected at the end of the treatment and Common Terminology Criteria for Adverse Events v4.0(CTCAE)was used to evaluate the adverse *** The response to treatment was 84.4%(27/32)in the treatment group and 46.4%(13/28)in the placebo group,respectively(P=0.002).Compared with pre-treatment,a significant decrease was found on the IBS-SSS and BSFS scores after 6-week intervention in both groups(P0.05).Side effects reported in the treatment group included 2 cases of headache during the first week of the onset of the treatment,1 case of drowsiness,1 case of increase in menstrual bleeding,which did not result in discontinuation of the *** the placebo group,1 case of exacerbation of the disease was *** Anti-IBS syrup significantly reduced th

关键词： irritable bowel syndrome herbal medicine Persian medicine complementary medicine functional digestive disorders randomized controlled trial

An Optimal Algorithm for Resource Allocation in D2D Communication

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Computers, Materials & Continua 2023年第4期75卷 531-546页

作者： Shahad Alyousif Mohammed Dauwed Rafal Nader Mohammed Hasan ali Mustafa musa Jabar Ahmed Alkhayyat Research Centre University of MashreqBaghdadIraq College of Engineering Department of Electrical&Electronic EngineeringGulf UniversityAlmasnadKingdom of Bahrain Medical Instrumentation Techniques Engineering Dijlah University CollegeBaghdadIraq Department of Pharmacy Al-Mustaqbal University CollegeHilla51001Iraq Computer Techniques Engineering Department Faculty of Information TechnologyImam Ja’afar Al-Sadiq UniversityNajaf10023Iraq Department of Medical Instruments Engineering Techniques Al-Turath University CollegeBaghdad10021Iraq Department of Medical Instruments Engineering Techniques Al-Farahidi UniversityBaghdad10021Iraq College of Technical Engineering The Islamic UniversityNajafIraq

The number of mobile devices accessing wireless networks isskyrocketing due to the rapid advancement of sensors and wireless communicationtechnology. In the upcoming years, it is anticipated that mobile datatraffic would rise even more. The development of a new cellular networkparadigm is being driven by the Internet of Things, smart homes, and moresophisticated applications with greater data rates and latency *** are being used up quickly due to the steady growth of smartphonedevices andmultimedia apps. Computation offloading to either several distantclouds or close mobile devices has consistently improved the performance ofmobile devices. The computation latency can also be decreased by offloadingcomputing duties to edge servers with a specific level of computing ***-to-device (D2D) collaboration can assist in processing small-scaleactivities that are time-sensitive in order to further reduce task delays. The taskoffloading performance is drastically reduced due to the variation of differentperformance capabilities of edge nodes. Therefore, this paper addressed thisproblem and proposed a new method for D2D communication. In thismethod, the time delay is reduced by enabling the edge nodes to exchangedata samples. Simulation results show that the proposed algorithm has betterperformance than traditional algorithm.

关键词： D2D communication resource allocation latency optimization

An Efficient Method for Heat Recovery Process and Temperature Optimization

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Computers, Materials & Continua 2023年第4期75卷 1017-1031页

作者： Basim Kareem Naser Mohammed Dauwed Ahmed Alkhayyat Mustafa musa Jaber Shahad Alyousif Mohammed Hasan ali Dentistry Department Al-Mustaqbal University CollegeHilla51001Iraq Medical Instrumentation Techniques Engineering Dijlah University CollegeBaghdad00964Iraq College of Technical Engineering The Islamic UniversityNajaf54001Iraq Department of Medical Instruments Engineering Techniques Al-Turath University CollegeBaghdad10021Iraq Department of Medical Instruments Engineering Techniques Al-Farahidi UniversityBaghdad10021Iraq Research Centre University of MashreqBaghdad11001Iraq College of Engineering Department of Electrical&Electronic EngineeringGulf UniversityAlmasnad4363Kingdom of Bahrain Computer Techniques Engineering Department Faculty of Information TechnologyImam Ja’afarAl-Sadiq UniversityNajaf10023Iraq

Flue gas heat loss accounts for a significant component of theoverall heat loss for coal-fired boilers in power plants. The flue gas absorbsmore heat as the exhaust gas temperature rises, which reduces boiler efficiencyand raises coal consumption. Additionally, if the exhaust gas temperatureis too high, a lot of water must be used to cool the flue gas for the wetflue gas desulfurization system to function well, which has an impact onthe power plant’s ability to operate profitably. It is consequently vital totake steps to lower exhaust gas temperatures in order to increase boilerefficiency and decrease the amount of coal and water used. Desulfurizationperformance may be enhanced and water use can be decreased by reasonableflue gas characteristics at the entry. This study analyzed the unit’s energyconsumption, investment, and coal savings while proposing four couplingstrategies for regulating flue gas temperature and waste heat recovery. Agraded flue gas conditioning and waste heat recovery plan was presentedunder the condition of ensuring high desulfurization efficiency, along withthe notion of minimizing energy loss owing to energy inflow temperaturedifference. Numerical results show that the proposed methods improved thesystem performance and reduced the water consumption and regulated theboiler temperature.

关键词： Heat exchange system boiler energy optimization temperature control

Artificial Intelligence Based Reliable Load Balancing Framework in Software-Defined Networks

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Computers, Materials & Continua 2022年第1期70卷 251-266页

作者： Mohammad Riyaz Belgaum Fuead ali Zainab Alansari Shahrulniza musa Muhammad Mansoor Alam M.S.Mazliham Malaysian Institute of Information Technology Universiti Kuala LumpurKuala Lumpur50250Malaysia Majan University College Muscat710Oman Institute of Business Management KarachiPakistan Malaysia France Institute Universiti Kuala LumpurKuala Lumpur43650Malaysia

Software-defined networking(SDN)plays a critical role in transforming networking from traditional to intelligent *** increasing demand for services from cloud users has increased the load on the *** efficient system must handle various loads and increasing needs representing the relationships and dependence of businesses on automated measurement systems and guarantee the quality of service(QoS).Themultiple paths from source to destination give a scope to select an optimal path by maintaining an equilibrium of load using some best ***,the requests need to be transferred to reliable network *** address SDN’s current and future challenges,there is a need to know how artificial intelligence(AI)optimization techniques can efficiently balance the *** study aims to explore two artificial intelligence optimization techniques,namely Ant Colony Optimization(ACO)and Particle Swarm Optimization(PSO),used for load balancing in ***,we identified that a modification to the existing optimization technique could improve the performance by using a reliable link and node to form the path to reach the target node and improve load ***,we propose a conceptual framework for SDN futurology by evaluating node and link reliability,which can balance the load efficiently and improve QoS in SDN.

关键词： Ant colony optimization load balancing particle swarm optimization quality of service reliability software-defined networking

Comparative assessment of clinical profile and outcomes after primary percutaneous coronary intervention in young patients with single vs multivessel disease

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World Journal of Cardiology 2020年第4期12卷 136-143页

作者： Atif Sher Muhammad Tariq Ashraf Ayaz Mir Syed alishan Faiza Farooq ali Ammar musa Karim Syed Nadeem Hassan Rizvi Tahir Saghir Jawaid Akbar Sial Naveed ullah Khan Department of Adult Cardiology National Institute of Cardiovascular DiseasesKarachi 75510Pakistan Department of Clinical Research National Institute of Cardiovascular DiseasesKarachi 75510Pakistan

BACKGROUND Even though percutaneous coronary intervention(PCI)improved the survival of patients with acute myocardial infarction,still multivessel coronary artery disease remains an important factor burdening prognosis and it is being associated with a worse prognosis compared to single-vessel disease(SVD).AIM To compare the clinical profile and outcomes after the primary PCI in young patients with SVD vs multivessel disease(MVD).METHODS The retrospective cohort of patients were divided into two groups:SVD and MVD *** study population consisted of both male and female young(≤45 years)patients presented with ST-elevation myocardial infarction(STEMI)at the National Institute of Cardiovascular Disease,Karachi,Pakistan and undergone primary PCI from 1 st July 2017 to 31 st March *** and postprocedure management of the patients was as per the guidelines and institutional *** A total of 571 patients with STEMI,≤45 years were stratified into two groups by the number of vessels involved,342(59.9%)with SVD and 229(40.1%)with *** average age of these patients was 39.04±4.86 years.A lower prevalence of hypertension and diabetes was observed in SVD as compare to MVD group(25.1%vs 38%,Pabetes and hypertension have a certain role in the pathogenesis of multivessel diseases,therefore,preventive

关键词： Young Multivessel disease Primary percutaneous coronary intervention STelevation myocardial infarction Premature coronary artery diseases Single-vessel disease

***:Hybrid Deep Learning for Enhancing IoT Network Intrusion Detection

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Computers, Materials & Continua 2021年第12期69卷 3945-3966页

作者： Ziadoon K.Maseer Robiah Yusof Salama A.Mostafa Nazrulazhar Bahaman Omar musa Bander ali Saleh Al-rimy Faculty of Information and Communication Technology Universiti Teknikal MalaysiaMelaka76100Malaysia Center of Intelligent and Autonomous Systems Faculty of Computer Science and Information TechnologyUniversiti Tun Hussein Onn MalaysiaJohor86400Malaysia Faculty of Business and Technology UNITAR International UniversitySelangor47301Malaysia School of Computing Faculty of EngineeringUniversiti Teknologi MalaysiaJohor81310Malaysia

With an increasing number of services connected to the internet,including cloud computing and Internet of Things(IoT)systems,the prevention of cyberattacks has become more challenging due to the high dimensionality of the network traffic data and access ***,researchers have suggested deep learning(DL)algorithms to define intrusion features through training empirical data and learning anomaly patterns of ***,due to the high dynamics and imbalanced nature of the data,the existing DL classifiers are not completely effective at distinguishing between abnormal and normal behavior line connections for modern ***,it is important to design a self-adaptive model for an intrusion detection system(IDS)to improve the detection of ***,in this paper,a novel hybrid weighted deep belief network(HW-DBN)algorithm is proposed for building an efficient and reliable IDS(***)model to detect existing and novel *** HW-DBN algorithm integrates an improved Gaussian–Bernoulli restricted Boltzmann machine(Deep GB-RBM)feature learning operator with a weighted deep neural networks(WDNN)*** CICIDS2017 dataset is selected to evaluate the *** model as it contains multiple types of attacks,complex data patterns,noise values,and imbalanced *** have compared the performance of the *** model with three recent *** results show the *** model outperforms the three other models by achieving a higher detection accuracy of 99.38%and 99.99%for web attack and bot attack scenarios,***,it can detect the occurrence of low-frequency attacks that are undetectable by other models.

关键词： Cyberattacks internet of things intrusion detection system deep learning neural network supervised and unsupervised deep learning