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International Journal of Sediment Research 2019年第2期34卷 95-107页

作者： Mohd Yawar Ali Khan Fuqiang Tian faisal hasan Govind Joseph Chakrapani Institute of Hydrology and Water Resources Department of Hydraulic EngineeringSchool of Civil EngineeringTsinghua University Department of Earth Sciences Indian Institute of Technology Roorkee Department of Mechanical Engineering Aligarh Muslim University

The relation between the water discharge(Q) and suspended sediment concentration(SSC)of the River Ramganga at Bareilly,Uttar Pradesh,in the Himalayas,has been modeled using Artificial Neural Networks(ANNs).The current study validates the practical capability and usefulness of this tool for simulating complex nonlinear,real world,river system processes in the Himalayan *** modeling approach is based on the time series data collected from January to December(2008-2010)for Q and *** ANNs(T1-T3)with different network configurations have been developed and trained using the Levenberg Marquardt Back Propagation Algorithm in the Matlab *** were optimized using the enumeration technique,and,finally,the best network is used to predict the SSC values for the year *** values thus obtained through the ANN model are compared with the observed values of *** coefficient of determination(R2),for the optimal network was found to be *** study not only provides insight into ANN modeling in the Himalayan river scenario,but it also focuses on the importance of understanding a river basin and the factors that affect the SSC,before attempting to model *** the temporal variations in the study area,it is possible to model and successfully predict the SSC values with very simplistic ANN models.

关键词： ANN Water discharge Suspended sediment concentration prediction Ramganga River Himalayas

Discrete Numerical Study on Type II Fracture of Partially Detached Concrete Panels in Cold Region

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Structural Durability & Health Monitoring 2025年第1期19卷 167-191页

作者： Huayi Zhang Maobin Song Lei Shen Nizar faisal Alkayem Maosen Cao College of Water Conservancy and Hydropower Engineering Hohai UniversityNanjing210024China Haihe River Huaihe River and Xiaoqinghe River Basin Water Conservancy Management and Service Center of Shandong ProvinceJinan250100China College of Mechanics and Engineering Science Hohai UniversityNanjing211100China

When the upper chord beam of the beam-string structure(BSS)is made of concrete-ﬁlled steel tube(CFST),its overall stiffness will change greatly with the construction of concrete placement,which will have an impact on the design of the tensioning plans and selection of control measures for the *** order to accurately obtain the bending stiffness of CFST beam and clarify its impact on the mechanical properties of composite BSS during con-struction,the inﬂuence of some factors such as height-width ratio,wall thickness of steel tube,elasticity modulus of concrete,and friction coefﬁcient on the bending stiffness are analyzed parametrically by the numerical simula-tion technology based on an actual *** calculation formula of the equivalent bending stiffness of CFST is also established through mathematical statistical ***,the equivalent bending stiffness is introduced into the construction and use stages of the composite BSS,respectively,and the mechanical properties such as prestress-tensioning control value,structural deformation,and internal force of key members are comparatively analyzed when adopting two different construction ***,the optimal construction plan of concrete placementﬁrst and then prestress-tensioning is proposed.

关键词： Beam-string structure(BSS) concrete-ﬁlled steel tube(CFST) bending stiffness timing of concrete placement prestress-tensioning

Robust design of sliding mode control for airship trajectory tracking with uncertainty and disturbance estimation

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Journal of Systems Engineering and Electronics 2024年第1期35卷 242-258页

作者： WASIM Muhammad ALI Ahsan CHOUDHRY Mohammad Ahmad SHAIKH Inam Ul hasan SALEEM faisal Department of Aeronautics and Astronautics Engineering Institute of Space TechnologyIslamabad 44000Pakistan Department of Electrical Engineering University of Engineering and TechnologyTaxila 47080Pakistan Department of Measurements and Control Systems Silesian University of TechnologyGliwice 44-101Poland The Joint Doctoral School Silesian University of TechnologyGliwice 44-100Poland

The robotic airship can provide a promising aerostatic platform for many potential *** applications require a precise autonomous trajectory tracking control for *** has a nonlinear and uncertain *** is prone to wind disturbances that offer a challenge for a trajectory tracking control *** paper addresses the airship trajectory tracking problem having time varying reference path.A lumped parameter estimation approach under model uncertainties and wind disturbances is opted against distributed *** uses extended Kalman filter(EKF)for uncertainty and disturbance *** estimated parameters are used by sliding mode controller(SMC)for ultimate control of airship trajectory *** comprehensive algorithm,EKF based SMC(ESMC),is used as a robust solution to track airship *** proposed estimator provides the estimates of wind disturbances as well as model uncertainty due to the mass matrix variations and aerodynamic model *** stability and convergence of the proposed method are investigated using the Lyapunov stability *** simulation results show that the proposed method efficiently tracks the desired *** method solves the stability,convergence,and chattering problem of SMC under model uncertainties and wind disturbances.

关键词： airship chattering extended Kalman filter(EKF) model uncertainties estimation sliding mode controller(SMC)

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Management of nonalcoholic fatty liver disease in the Middle East

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World Journal of Gastroenterology 2020年第25期26卷 3528-3541页

作者： faisal M Sanai faisal Abaalkhail Fuad hasan Muhammad Hamed Farooqi Nawal Al Nahdi Zobair M Younossi Gastroenterology Unit Department of MedicineKing Abdulaziz Medical CityJeddah 21423Saudi Arabia Department of Medicine Alfaisal UniversityRiyadh 11533Saudi Arabia Department of Liver Transplant King Fahad Specialist HospitalDammam 32253Saudi Arabia Department of Internal Medicine Faculty of MedicineKuwait UniversitySafat 13110Kuwait Dubai Diabetes Center Dubai Health AuthorityDubai 00000United Arab Emirates Department of Gastroenterology and Hepatology Dubai Health AuthorityRashid hospitalDubai 00000United Arab Emirates Department of Medicine Inova Fairfax Medical CampusFalls ChurchVA 22042United States

The prevalence of nonalcoholic fatty liver disease(NAFLD)in the Middle East is increasing in parallel to an increase in the prevalence of associated risk factors such as obesity,metabolic syndrome,and type 2 diabetes *** 20%to 30%of the patients progress to develop nonalcoholic steatohepatitis(NASH),a histological subtype of NAFLD,with features of hepatocyte injury such as hepatocyte *** can progress to fibrosis,cirrhosis,and even hepatocellular *** thus causes a substantial burden on healthcare systems and it is imperative that appropriate strategies are discussed at a regional level to facilitate effective management tailored to the needs of the *** fulfil this unmet need,expert gastroenterologists,hepatologists,and endocrinologists from the region came together in three advisory board meetings that were conducted in Saudi Arabia,United Arab Emirates,and Kuwait,to discuss current local challenges in NAFLD screening and diagnosis,and the different available management *** experts discussed the disease burden of NAFLD/NASH in the Middle East;screening,diagnosis,and referral patterns in NAFLD;and available treatment options for NAFLD and *** paper summarizes the discussions and opinion of the expert panel on the management of NAFLD/NASH and also presents an extensive literature review on the topic.

关键词： Nonalcoholic fatty liver disease Nonalcoholic steatohepatitis Middle East Expert opinion

A Robust MPPT Control Based on Double Ended Forward Converter Architecture

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Computers, Materials & Continua 2022年第1期70卷 135-150页

作者： M.Usman Khan K.M.hasan A.faisal Murtaza H.M.Usman Hadeed A.Sher University of Engineering&Technology Lahore54000Pakistan University of Central Punjab Lahore54000Pakistan Ghulam Ishaq Khan Institute of Engineering Sciences and Technology Swabi23430Pakistan

In this paper,a stand-alone photovoltaic(PV)system based on a Double Ended Forward Converter(DEFC)is *** proposed converter is specified for 48 V,100Wapplications as most of the equipment used in telecommunication and aircraft fall in this *** literature has limited potential application of DEFCin PV *** research work deals with an in-depth study of DEFCand proposes an improvedDEFCfor PV applications with battery ***,a bi-directional dc-dc converter for the battery is integrated to track theMaximumPower Point(MPP)of the PV *** converter is examined under variable irradiance and load conditions,and the analytical analysis of boundary conditions are *** converter’s architecture also ensures built-in I-V curve tracing for the identification of MPP of PV *** offers low voltage stresses across switches and avoids sinking power supply and core resetting *** topology’s behavior is analyzed based onMPP achievement and maintaining output under different conditions of battery backup availability,environmental,and load *** PV system architecture is designed and analyzed theoretically and verified with simulations on the PSIM software.

关键词： Photovoltaic power converter forward converter double ended forward converter bi-directional dc-dc converter MPP I-V curve tracing

A review of recent advancements in finite element formulation for sandwich plates

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Chinese Journal of Aeronautics 2019年第4期32卷 785-798页

作者： Shehzaib IRFAN faisal SIDDIQUI Aerospace Engineering Department College of Aeronautical Engineering National University of Sciences and TechnologyRisalpur

Use of composite structures is exponentially growing in different fields due to their higher strength-to-weight ratio. This application trend requires that accurate theoretical explanations and their finite element models be developed for analyzing sandwich plates before finalizing the designs. This paper reviews the recent research trends of finite element formulations developed for analyzing sandwich plates. This paper reviews the finite element models developed after the year 2000. Initially, the finite element formulations based on first order shear deformation theory, higher order shear deformation theories, mixed solid-shell elements, zig-zag theories and global–local theories are presented. Then, some finite element formulations developed to analyze a very new class of structures called piezoelectric structures are presented. At the end, some formulations to analyze a very critical phenomenon called buckling are presented.

关键词： Buckling Finite element FSDT HSDT Laminated composites Piezoelectric Sandwich plates Zig-zag theory

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Crustal reflection structure in the uplifting zone of Songliao Basin and disconnecting Moho interface

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Science China Earth Sciences 2004年第6期47卷 514-521页

作者： S.A.faisal Department of Geophysics Jilin University Changchun 130026 China

In order to obtain the fine structure of Songliao Basin, four nearly vertical reflection profiles were acquired and then processed so as to get the poststack migration sections with two-way travel of 15s. In this paper, we study the reflection characteristics in the southeastern and northeastern uplifting zones of Songliao Basin, discovering that the structure within the up-lifting zones has the following features: (i) The sedimentary thickness decreases from west to east and increases from north to south. (ii) In the northeastern and southeastern uplifting zones, the crustal reflection image varies remarkably along east-west or south-north direction. (iii) In the northeastern uplifting zone, the two-way travel time of Moho interface ranges within 9.6—11.0 s (the depth range of 30—34 km). (iv) In the southeastern uplift, the two-way travel time of Moho interface ranges within 9.7—10.4 s (the depth range of 30—32 km). The poststack migration sections manifest the peculiar phenomenon of the disconnecting Moho reflection phases in Songliao Basin with two-way travel time difference of 0.1—0.5 s (2 km or so). In the vicinity of disconnecting zone, there are several shear faults, which are wide within the uplifting zone and become narrow at the intersection of two uplifting zones. It can be inferred that these reflection images and peculiar reflections from Moho interface are attributed to the coupling of the following dynamic factors: multi-phase weak collision of Heilongjiang micro-continents, westward under-thrusting of Pacific plate and so on.

关键词： Songliao Basin, uplifting zone, nearly vertical reflection seismic probing, disconnecting zone of Moho interface.

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Towards a Dynamic Virtual IoT Network Based on User Requirements

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Computers, Materials & Continua 2021年第11期69卷 2231-2244页

作者： faisal Mehmood Shabir Ahmad Israr Ullah faisal Jamil DoHyeun Kim Department of Computer Engineering Jeju National UniversityJeju63243Korea Department of I.T.Convergence Engineering Gachon UniversitySeongnam-Si461-701Korea Department of Software Engineering University of Engineering&Technology MardanMardan23200Pakistan

The data being generated by the Internet of Things needs to be stored,monitored,and analyzed for maximum IoT resource *** Defined Networking has been extensively utilized to address issues such as heterogeneity and ***,for small-scale IoT application,sometimes it is considered an inefficient *** paper proposes an alternate lightweight mechanism to the design and implementation of a dynamic virtual network based on user *** key idea is to provide users a virtual interface that enables them to reconfigure the communication flow between the sensors and actuators at *** throughput of the communication flow depends on the data traffic load and optimal *** can reconfigure the communication flow,and virtual agents find the optimal route to handle the traffic *** virtual network provides a user-friendly interface to allow physical devices to be mapped with the corresponding virtual *** proposed network is applicable for all systems that lie in the Internet of Things *** conclude that the proposed network is efficient,reliable,and responsive to network reconfiguration at runtime.

关键词： Internet of things software-defined networks virtual network inter-process communication cloud of things

Computational Design and Fabrication of a Bending-Active Structure Using Fiberglass:A Bioinspired Pavilion Mimicking Marine Microorganism Radiolaria

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Journal of Bionic Engineering 2022年第2期19卷 471-482页

作者： Bosheng Liu Tanvir R.faisal School of Architecture and Design University of Louisiana at LafayetteLafayetteLA 70503USA Department of Mechanical Engineering University of Louisiana at LafayetteLafayetteLA 70503USA

Bio-inspired architectural designs are often superior for their aesthetics and structural *** forms and loading states of a biological structure is complex as it requires a delicate balance among geometry,material properties,and interacting *** goal of this work is to design a biomimetic,ultra-lightweight,bending-active structure utilizing an informed integral design approach,and thereby constructing a self-supporting cellular pavilion.A bioinspired pavilion has been designed and constructed based on the natural cellular organization observed in Radiolaria,a deep-sea *** cellularity was mimicked via Voronoi tessellation in the structure of the pavilion,whose structural performance was evaluated using finite element ***,funicular structure design strategies were studied with a focus on cellular distributions and concentration responding to areas with high structural *** computer aided custom designed pavilion was constructed with engineered,in-house fabricated fiberglass composite *** bending-active lightweight structure was also validated through material performance inquiry,a partial full-scale cellular assembly,and the full-size pavilion *** work contributes to the design approach comprising a bending-active form-finding schematic strategy to construct the elastic bending-active structure physically and simulate computationally within the context of nature inspired innovative lightweight structure design.

关键词： Biomimetic design Double-curved shell pavilion Voronoi tessellation Bending-active structures Finite element analysis

Gender disparities and woman-specific trends in Barrett’s esophagus in the United States:An 11-year nationwide populationbased study

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World Journal of Methodology 2025年第1期15卷 60-71页

作者： Karina Fatakhova faisal Inayat Hassam Ali Pratik Patel Attiq Ur Rehman Arslan Afzal Muhammad Sarfraz Shiza Sarfraz Gul Nawaz Ahtshamullah Chaudhry Rubaid Dhillon Arthur Dilibe Benjamin Glazebnik Lindsey Jones Emily Glazer Division of Gastroenterology and Hepatology Mather Hospital and Zucker School of Medicine at Hofstra UniversityPort JeffersonNY 11777United States Department of Internal Medicine Allama Iqbal Medical CollegeLahorePunjab 54550Pakistan Division of Gastroenterology and Hepatology East Carolina University Brody School of MedicineGreenvilleNC 27834United States Division of Gastroenterology and Hepatology Geisinger Wyoming Valley Medical CenterWilkes-BarrePA 18711United States Department of Internal Medicine East Carolina University Brody School of MedicineGreenvilleNC 27834United States Department of Internal Medicine St.Dominic's HospitalJacksonMS 39216United States Department of Gastroenterology Hepatologyand NutritionCleveland Clinic FoundationClevelandOH 44195United States Department of Internal Medicine Mather Hospital and Hofstra University ZuckerSchool of MedicinePort JeffersonNY 11777United States

BACKGROUND Barrett's esophagus(BE)is a known premalignant precursor to esophageal adenocarcinoma(EAC).The prevalence rates continue to rise in the United States,but many patients who are at risk of EAC are not *** practice guidelines include male gender as a predisposing factor for BE and *** population-based clinical evidence regarding female gender remains *** To study comparative trends of gender disparities in patients with BE in the United *** A nationwide retrospective study was conducted using the 2009-2019 National Inpatient Sample(NIS)*** with a primary or secondary diagnosis code of BE were *** major outcome of interest was determining the gender disparities in patients with *** analysis for respective outcomes for females was also reported to ascertain any time-based *** We identified 1204190 patients with BE for the study *** the included patients,717439(59.6%)were men and 486751(40.4%)were *** mean age was higher in women than in men(67.1±0.4 vs 66.6±0.3 years,P<0.001).The rate of BE per 100000 total NIS hospitalizations for males increased from 144.6 in 2009 to 213.4 in 2019(P<0.001).The rate for females increased from 96.8 in 2009 to 148.7 in 2019(P<0.001).There was a higher frequency of obesity among women compared to men(17.4%vs 12.6%,P<0.001).Obesity prevalence among females increased from 12.3%in 2009 to 21.9%in 2019(P<0.001).A lower prevalence of smoking was noted in women than in men(20.8%vs 35.7%,P<0.001).However,trend analysis showed an increasing prevalence of smoking among women,from 12.9%in 2009 to 30.7%in 2019(P<0.001).Additionally,there was a lower prevalence of alcohol abuse,Helicobacter pylori(***),and diabetes mellitus among females than males(P<0.001).Trend analysis showed an increasing prevalence of alcohol use disorder and a decreasing prevalence of *** and diabetes mellitus among women(P<0.001).CONCLUSION The prevalence of BE among

关键词： Barrett’s esophagus Gender disparity Epidemiological trends Esophageal adenocarcinoma Screening endoscopy Female gender Risk factors