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A Paleogeographic and Depositional Model for the Neogene Fluvial Succession, Pishin Belt, Northwest Pakistan: Effect of Post Collisional Tectonics on Sedimentation in a Peripheral Foreland Setting

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Acta Geologica Sinica(English Edition) 2018年第2期92卷 499-518页

作者： Aimal K.KASI Akhtar M.KASSI Muhammad UMAR Henrik FRIIS Mohibullah MOHIBULLAH razzaq a.manan Centre of Excellence in Mineralogy University of Balochistan Department of Geology University of Balochistan Department of Earth Sciences COMSATS Institute of Technology Department of Geoscience Aarhus University

Detailed facies analysis of the Neogene successions of the Pishin Belt （Katawaz Basin） has enabled documentation of successive depositional systems and paleogeographic settings of the basin formed by the collision of the northwestern continental margin of the Indian Plate and the Afghan Block. During the Early Miocene, subaerial sedimentation started after the final closure of the Katawaz Remnant Ocean. Based on detailed field data, twelve facies were recognized in Neogene successions exposed in the Pishin Belt. These facies were further organized into four facies associations i.e. channels, crevasse splay, natural levee and floodplain facies associations. Facies associations and variations provided ample evidence to recognize a number of fluvial architectural components in the succession e.g., low-sinuosity sandy braided river, mixed-load meandering, high-sinuosity meandering channels, single-story sandstone and/or conglomerate channels, lateral accretion surfaces （point bars） and alluvial fans. Neogene sedimentation in the Pishin Belt was mainly controlled by active tectonism and thrusting in response to the oblique collision of the Indian Plate with the Afghan Block of the Eurasian Plate along the Chaman-Nushki Fault. Post Miocene deformation of these formations successively caused them to contribute as an additional source terrain for the younger formations.

关键词： Active tectonics fluvial system paleogeography Pishin belt Indian-Eurasian collision zone

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Bulk and bubble-scale experimental studies of influence of nanoparticles on foam stability

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Chinese Journal of Chemical Engineering 2017年第3期25卷 347-357页

作者： Nurudeen Yekeen Ahmad Kamal Idris Muhammad a.manan Ali Mohamed Samin Abdul Rahim Risal Tan Xin Kun Department of Petroleum Engineering Faculty of Chemical and Energy EngineeringUniversiti Teknologi Malaysia81310 Johor BahruMalaysia

Influence of silicon oxide(SiO_2) and aluminum oxide(Al_2O_3) nanoparticles on the stability of nanoparticles and sodium dodecyl sulfate(SDS) mixed solution foams was studied at bulk and bubble-scale. Foam apparent viscosity was also determined in Hele-Shaw cell In order to investigate the foam performance at static and dynamic conditions. Results show that the maximum adsorption of surfactant on the nanoparticles occurs at 3 wt% surfactant concentration. Foam stability increases while the foamability decreases with the increasing nanoparticle concentration. However, optimum nanoparticle concentration corresponding to maximum foam stability was obtained at 1.0 wt% nanoparticle concentration for the hydrophilic SiO_2/SDS and Al_2O_3/SDS foams. Foam performance was enhanced with increasing nanoparticles hydrophobicity. Air-foams were generally more stable than CO_2 *** apparent viscosity increased in the presence of nanoparticles from 20.34 mPa·s to 84.84 mPa·s while the film thickness increased from 27.5 μm to 136 μm. This study suggests that the static and dynamic stability of conventional foams could be improved with addition of appropriate concentration of nanoparticles into the surfactant solution. The nanoparticles improve foam stability by their adsorption and aggregation at the foam lamellae to increase film thickness and dilational viscoelasticity. This prevents liquid drainage and film thinning and improves foam stability both at the bulk and bubble scale.

关键词： Foam stability Bubble-scale Bulk-scale Nanoparticles Apparent viscosity

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Experimental investigation of enhancement of carbon dioxide foam stability, pore plugging, and oil recovery in the presence of silica nanoparticles

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Petroleum Science 2019年第2期16卷 344-356页

作者： Abdul Rahim Risal Muhammad a.manan Nurudeen Yekeen Nur Bashirah Azli Ali Mohamed Samin Xin Kun Tan Department of Petroleum Engineering Faculty of Petroleum and Renewable Energy Engineering Universiti Teknologi Malaysia Institute of Hydrocarbon Recovery Universiti Teknologi PETRONAS

The influence of surface-modified silica(SiO_2) nanoparticles on the stability and pore plugging properties of foams in porous media was investigated in this study. The pore plugging ability of foams was estimated from the pressure drop induced during foam propagation in porous media. The results clearly showed that the modified Si02 nanoparticlestabilized foam exhibited high stability, and the differential pressure increased in porous media by as much as three *** addition of SiO_2 nanoparticles to the foaming dispersions further mitigated the adverse effect of oil toward the foam pore plugging ability. Consequently, the oil recovery increased in the presence of nanoparticles by approximately 15%during the enhanced oil recovery experiment. The study suggested that the addition of surface-modified silica nanoparticles to the surfactant solution could considerably improve the conventional foam stability and pore plugging performance in porous media.

关键词： Foam Pore plugging Surface-modified nanoparticle Enhanced oil recovery

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Normalized urban heat island (UHI) indicators: Classifying the temporal variation of UHI for building energy simulation (BES) applications

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Building Simulation 2023年第9期16卷 1645-1658页

作者： manan Singh Ryan Sharston Florida Institute for Built Environment Resilience(FIBER) College of DesignConstruction and PlanningUniversity of FloridaGainesvilleFL 32601USA

Despite known effects of urban heat island(UHI)on building energy consumption such as increased cooling energy demand,typical building energy simulation(BES)practices lack a standardized approach to incorporate UHI into building energy *** seasonal and diurnal variation of UHI makes the task of incorporating UHI into BES an especially challenging task,often limited by the availability of detailed hourly temperature data at building *** paper addresses the temporal variation of UHI by deriving four normalized UHI indicators that can successfully capture the seasonal and diurnal variation of *** accuracy of these indicators was established across four climate types including hot and humid(Miami,FL),hot and dry(Los Angeles,CA),cold and dry(Denver,CO),and cold and humid(Chicago,IL),and three building types including office,hospital,and *** four indicators are mean summer daytime UHI,mean summer nighttime UHI,mean winter daytime UHI,and mean winter nighttime UHI,which can accurately predict cooling,heating,and annual energy consumption with mean relative error of less than 1%.Not only do these indicators simplify the application of UHI to BES but also,they provide a new paradigm for UHI data collection,storage,and usage,specifically for the purpose of BES.

关键词： building energy simulation(BES) UHI indicators UHI temporal variation urban temperature variation

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Study for obtaining the exact solutions for the propagation of pulses in optical fibers

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Communications in Theoretical Physics 2024年第10期76卷 12-23页

作者： Arzu Akbulut Waseem razzaq Filiz Tascan Department of Mathematics Faculty of Arts and ScienceBursa Uludağ UniversityBursaTürkiye Math Center House no 87 Rahmanyia ColonyVehariPakistan Department of Mathematics and Computer Sciences Faculty of Arts and ScienceEskisehir Osmangazi UniversityEskisehirTürkiye

In this study, the exact solutions for the propagation of pulses in optical fibers are *** values are given in the model used, and two nonlinear differential equations are *** equations are reduced to ordinary differential equations with the help of wave transformations. Then, the obtained differential equations are solved by two different methods,namely the modified simplest equation and the modified Kudryashov procedures. The solutions are given by hyperbolic, trigonometric and rational functions and the results are useful for optics,engineering and other related areas. Finally three-dimensional, contour and two-dimensional shapes are given for some solutions. These figures are important for understanding the motion of the wave. The given methods are applied to the equations for the first time. To the best of the authors' knowledge, these results are new and have not been obtained in the literature. The results are useful for applied mathematics, physics and other related areas.

关键词： traveling wave transformation exact solutions the modified simplest equation procedure

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Vertex Cover Optimization Using a Novel Graph Decomposition Approach

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Computers, Materials & Continua 2022年第10期73卷 701-717页

作者： Abdul manan Shahida Bashir Abdul Majid Department of Mathematics University of GujratGujrat50700Pakistan Department of Physics University of GujratGujrat50700Pakistan

The minimum vertex cover problem(MVCP)is a well-known combinatorial optimization problem of graph *** MVCP is an NP(nondeterministic polynomial)complete problem and it has an exponential growing complexity with respect to the size of a *** algorithm exits till date that can exactly solve the problem in a deterministic polynomial time ***,several algorithms are proposed that solve the problem approximately in a short polynomial time *** algorithms are useful for large size graphs,for which exact solution of MVCP is impossible with current computational *** MVCP has a wide range of applications in the fields like bioinformatics,biochemistry,circuit design,electrical engineering,data aggregation,networking,internet traffic monitoring,pattern recognition,marketing and franchising *** work aims to solve the MVCP approximately by a novel graph decomposition *** decomposition of the graph yields a subgraph that contains edges shared by triangular edge structures.A subgraph is covered to yield a subgraph that forms one or more Hamiltonian cycles or *** order to reduce complexity of the algorithm a new strategy is also *** reduction strategy can be used for any algorithm solving *** on the graph decomposition and the reduction strategy,two algorithms are formulated to approximately solve the *** algorithms are tested using well known standard benchmark *** key feature of the results is a good approximate error ratio and improvement in optimum vertex cover values for few graphs.

关键词： Combinatorial optimization graph theory minimum vertex cover problem maximum independent set maximum degree greedy approach approximation algorithms benchmark instances

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Emerging the dual string drilling and dual coil tubing drilling technology in a geothermal well applications

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Petroleum 2022年第1期8卷 102-109页

作者： Jainish Shingala Nikshit Vora.manan Shah School of Petroleum Technology Pandit Deendayal Energy UniversityGandhinagar382426India Department of Chemical Engineering School of TechnologyPandit Deendayal Energy UniversityGandhinagar382426India

The challenges found in geothermal well drilling have forced the industry to develop new significant cost effective,time saver technologies to go for deeper geothermal resources beyond their traditional *** overcome these challenges,the new Dual String Drilling(DSD)technology which is based on penetration pathway of drilling fluid and rock cuttings during drilling a *** principle of DSD employs drilling fluid flows through the annulus of inner and outer string pipe while cutting from the bottom of the well through inner *** paper describes the novel Dual String Drilling(DSD)technology,predicting their occurrence and advantages on drilling of geothermal *** outcome shows that with DSD approach a lot of time will be saved to circulate the kick out of the ***,the characteristic response of DSD enables to improve the hole cleaning capacity,to prevent pipe stuck,better well stability,reduction in torque and drag,to remove the dynamic equivalent circulating density gradient in geothermal ***,the paper also depicts the system and method for dual coil tubing drilling of horizontal well which follows the same principle as *** comparison of DSD with conventional drilling assesses that the DSD technology is affordable and appropriate for geothermal well drilling.

关键词： Dual string drilling Geothermal energy Kick detection

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A comprehensive review of machine learning techniques on diabetes detection

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Visual Computing for Industry,Biomedicine,and Art 2021年第1期4卷 308-323页

作者： Toshita Sharma.manan Shah Department of Electronics and Communication Technology Nirma University382481 AhmedabadGujaratIndia Department of Chemical Engineering School of TechnologyPandit Deendayal Energy University382426 GandhinagarGujaratIndia

Diabetes mellitus has been an increasing concern owing to its high morbidity,and the average age of individual affected by of individual affected by this disease has now decreased to *** the high prevalence,it is necessary to address with this problem *** researchers and doctors have now developed detection techniques based on artificial intelligence to better approach problems that are missed due to human *** mining techniques with algorithms such as-density-based spatial clustering of applications with noise and ordering points to identify the cluster structure,the use of machine vision systems to learn data on facial images,gain better features for model training,and diagnosis via presentation of iridocyclitis for detection of the disease through iris patterns have been deployed by various *** learning classifiers such as support vector machines,logistic regression,and decision trees,have been comparative discussed various *** learning models such as artificial neural networks and recurrent neural networks have been considered,with primary focus on long short-term memory and convolutional neural network architectures in comparison with other machine learning *** parameters such as the root-mean-square error,mean absolute errors,area under curves,and graphs with varying criteria are commonly *** this study,challenges pertaining to data inadequacy and model deployment are *** future scope of such methods has also been discussed,and new methods are expected to enhance the performance of existing models,allowing them to attain greater insight into the conditions on which the prevalence of the disease depends.

关键词： Machine learning Deep learning Health care Diabetes detection

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Two-dimensional investigation of characteristic parameters and their gradients for the self-generated electric and magnetic fields of laser-induced zirconium plasma

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Plasma Science and Technology 2024年第5期26卷 138-155页

作者： Tayyaba SAJID Shazia BASHIR Mahreen AKRAM Maira razzaq Khaliq MAHMOOD Centre for Advanced Studies in Physics Institute of PhysicsGovernment College University LahoreLahore 54000Pakistan Department of Physics Institute of PhysicsGovernment College University LahoreLahore 54000Pakistan

Two-dimensional diagnosis of laser-induced zirconium(Zr)plasma has been experimentally performed using the time-of-flight method by employing Faraday cups in addition to electric and magnetic *** characteristic parameters of laser-induced Zr plasma have been evaluated as a function of different laser irradiances ranging from 4.5 to 11.7 GW cm-2 at different axial positions of 1–4 cm with a fixed radial distance of 2 cm.A well-supporting correlation between the plume parameters and the laser-plasma-produced spontaneous electric and magnetic(E and B)fields was *** measurements of the characteristic parameters and spontaneously induced fields were observed to have an increasing trend with the increasing laser ***,when increasing the spatial distance in both the axial and radial directions,the plasma parameters(electron/ion number density,temperature and kinetic energy)did not show either continuously increasing or decreasing trends due to various kinetic and dynamic processes during the spatial evolution of the ***,the E and B fields were observed to be always diffusing away from the *** radial component of electron number densities remained higher than the axial number density component,whereas the axial ion number density at all laser irradiances and axial distances remained higher than the radial ion number *** higher axial self-generated electric field(SGEF)values than radial SGEF values are correlated with the effective charge-separation mechanism of electrons and *** generation of a self-generated magnetic field is observed dominantly in the radial direction at increasing laser irradiance as compared to the axial one due to the deflection of fast-moving electrons and the persistence of two-electron temperature on the radial axis.

关键词： Faraday cup axial and radial expansion space-charge effect laser-induced zirconium plasma two-electron temperature distribution self-generated electric and magnetic fields

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Crime forecasting:a machine learning and computer vision approach to crime prediction and prevention

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Visual Computing for Industry,Biomedicine,and Art 2021年第1期4卷 76-89页

作者： Neil Shah Nandish Bhagat manan Shah Department of Computer Engineering Sal Institute of Technology and Engineering ResearchAhmedabadGujarat 380060India Department of Chemical Engineering School of TechnologyPandit Deendayal Energy UniversityGandhinagarGujarat 382426India

A crime is a deliberate act that can cause physical or psychological harm,as well as property damage or loss,and can lead to punishment by a state or other authority according to the severity of the *** number and forms of criminal activities are increasing at an alarming rate,forcing agencies to develop efficient methods to take preventive *** the current scenario of rapidly increasing crime,traditional crime-solving techniques are unable to deliver results,being slow paced and less ***,if we can come up with ways to predict crime,in detail,before it occurs,or come up with a“machine”that can assist police officers,it would lift the burden of police and help in preventing *** achieve this,we suggest including machine learning(ML)and computer vision algorithms and *** this paper,we describe the results of certain cases where such approaches were used,and which motivated us to pursue further research in this *** main reason for the change in crime detection and prevention lies in the before and after statistical observations of the authorities using such *** sole purpose of this study is to determine how a combination of ML and computer vision can be used by law agencies or authorities to detect,prevent,and solve crimes at a much more accurate and faster *** summary,ML and computer vision techniques can bring about an evolution in law agencies.

关键词： Machine learning Computer vision Crime forecasting

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