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Re-modified derivative-free iterative method for nonlinear monotone equations with convex constraints Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-26 Abdulkarim Hassan Ibrahim; Poom Kumam
In this note, we propose a modification as an alternative to remove the assumption of uniformly monotone as assumed in Aliyu et al. (2019). Numerical experiment shows that the modification improves the numerical performance of the method.
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CtuNet: A Deep Learning-based Framework for Fast CTU Partitioning of H265/HEVC Intra- coding Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-25 Farid Zaki; Amr E. Mohamed; Samir G. Sayed
Nowadays, real-time multimedia applications mandate high video quality while maintaining reasonable bitrates. The H.264 coding delivered inexpensive bitrate costs compared to other coding schemes while maintaining high-grade video quality, yet bounded to deliver higher qualities. Later, High-Efficiency Video Coding (HEVC) improved on H.264 by providing higher video qualities with an efficient bitrate
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A review on alkali-activated slag concrete Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-25 Ismail Amer; Mohamed Kohail; M.S. El-Feky; Ahmed Rashad; Mohamed A. Khalaf
Alkali-activated concrete (AAC) has attracted considerable attention since its first use as an alternative material to the well-known traditional Portland cement concrete (PCC) due to their superior properties and environmental impact. In this paper, a comprehensive review on the present knowledge about the AAC in terms of historical background, environmental impact, constituent materials and characteristics
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Investigating the impact of inflation on labour wages in Construction Industry of Malaysia Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-25 Wesam Salah Alaloul; Muhammad Ali Musarat; M.S. Liew; Abdul Hannan Qureshi; Ahsen Maqsoom
Labours in construction are one of the main pillars in the construction industry of Malaysia for projects execution. Construction labours not only contributes to the development of the construction industry but also impacts the Malaysian economy. Consideration of labour wages is made in the initial phase of the project budget, however, wages are getting changed over time. The inflation rate is one
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Analysis of temperature dependent properties of a peristaltic MHD flow in a non-uniform channel: A Casson fluid model Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-22 B.B. Divya; G. Manjunatha; C. Rajashekhar; Hanumesh Vaidya; K.V. Prasad
The current work pertains to the peristaltic motion of a Casson fluid through a non-uniform channel with exposure to a radial magnetic field. The wall properties of the channel are taken into consideration. Moreover, the fluid is considered to possess variable viscosity which shows exponential variation across the width of the channel. The investigations also consider the mass and heat transfer properties
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Improvement of swelling chlorite soil using sodium silicate alkali activator Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-22 Ahmed S. Elmannaey; Hala E.E. Fouad; Youssef G. Youssef
Construction on swelling soil represents a challenge to geotechnical engineers. Sodium silicate is usually offered to improve soil quality but with other chemicals; however, its sole effect on soil characteristics is still questionable. Thus, the main objective of this paper is to test the feasibility of depending on only sodium silicate in stabilizing swelling soil. To reach results, an expansive
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Extreme gradient boosting (Xgboost) model to predict the groundwater levels in Selangor Malaysia Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-22 Ahmedbahaaaldin Ibrahem Ahmed Osman; Ali Najah Ahmed; Ming Fai Chow; Yuk Feng Huang; Ahmed El-Shafie
Groundwater levels have been declining recently in Malaysia. This is why, the current study was aimed to propose an accurate groundwater levels prediction model using machine learning algorithms in highly populated towns in Selangor, Malaysia. The models developed used 11 months of previously recorded data of rainfall, temperature and evaporation to predict groundwater levels. Three machine learning
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Spin-valley thermoelectric characteristics of ferromagnetic silicene superlattice Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-22 Mohammed M. El-Banna; Adel Helmy Phillips; Ahmed Saeed Abdelrazek Bayoumi
Based on the transfer matrix method valley-spin caloritronic transport properties of ferromagnetic silicene superlattice are investigated theoretically under ac-field effect of various frequencies. The purpose of this work is to describe resolved thermoelectric parameters such as (charge, spin and valley) Seebeck and Peltier coefficients and electronic thermal conductance, by photon-assisted tunneling
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Natural convection flow of a nanofluid-filled V-shaped cavity saturated with a heterogeneous porous medium: Incompressible smoothed particle hydrodynamics analysis Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-22 Zehba A.S. Raizah; Abdelraheem M. Aly; Sameh E. Ahmed
The flow and heat transfer fields of a nanofluid within V-shaped cavity are analyzed using the incompressible smoothed particle hydrodynamic (ISPH) scheme. Novel studies on a nanofluid-occupied V-shaped cavity with a partial layer heterogeneous porous medium were conducted. The bottom and top corners of the V-shaped enclosure have isothermal conditions while the remaining boundaries are considered
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Enhancing rotor angle stability of power systems using marine predator algorithm based cascaded PID control Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-21 Ahmed Yakout; Waheed Sabry; Hany M. Hasanien
In this paper, the cascaded control scheme is introduced for the first time to the rotor stability problem. Cascaded excitation and governing control schemes are introduced to damp rotor oscillations. PID cascaded control is used for its popularity and effectiveness. These controllers will be fine-tuned using a novel metaheuristic optimization technique, namely the Marine Predator Algorithm; which
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Investigating the engineering properties of asphalt binder modified with waste plastic polymer Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-20 Nuha S. Mashaan; Amin Chegenizadeh; Hamid Nikraz; Alireza Rezagholilou
Current interest in reusing waste polymer shows substantial benefits of using it as a sustainable polymer in improving asphalt properties, attaining environmental stability and promoting industrial-economic benefits. Waste plastics have a vital role in the current asphalt applications. Trial sections of roads made with waste plastic modified asphalt, during 2019 in Australia, highlighted the significant
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Technical and economic feasibility of the first wind farm on the coast of Mediterranean Sea Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-19 Ahmed Shata Ahmed
The deployment of the use of inshore wind farms is an important for the preservation of the environmental aspects of the Mediterranean Sea zone, and seeks to achieve this goal all major industrialized countries bordering it. To assess the wind profile and its economic feasibility for the coastal area in Sidi Barrani province, a meteorological station with mast of 10 m was constructed near the Mediterranean
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An evolutionary framework for estimating turning movements at road intersections Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-13 Alsayed Alsobky; Ahmed Hassan
Turning movements are one of the key inputs required for several traffic studies. Several methods have been developed to measure them. However, present techniques have high operational or capital costs, which motivate researchers to develop new techniques to estimate turning movements. However, there is neither a flexible technique available to make best use of different available information types
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Systematic processing framework for analyzing the factors of construction projects’ delays in Egypt Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-13 Hayssam O. Elhusseiny; Ibrahim Nosair; A. Samer Ezeldin
Nowadays, the subject of delays is considered one of the most challenging problems for construction projects, particularly in Egypt. Delays occurrence normally leads to an increase in the project’s time and so its cost. Analyzing the factors of construction project delays in Egypt is a matter of crucial importance; thus, the reason why a systematic processing framework is developed. Considered as one
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Thermal efficiency of PCM filled double glazing units in Egypt Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-11 Ahmed M. Bolteya; Mohamed A. Elsayad; Adel M. Belal
Recent research has been focusing on using various media in glazing cavities to minimize heat transfer through translucent elements of buildings. During this study, the thermal efficiency of a Phase change material (RT28HC) glazed unit was experimentally investigated compared with that filled with air in dry arid region. Then, the effect of PCM thicknesses on the thermal efficiency of double-glazing
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Feasibility analysis of mini hydropower and thermal power plants at Hindiya barrage in Iraq Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-08 Alaa H. Alshami; Haitham A. Hussein
Mini hydropower plants can be considered as good instruments for power generation at a low cost with high efficiency. This study is undertaken to help address the electricity shortage that Iraq has faced for many decades. This study covers the design and analysis of two alternatives, which are hydropower and thermal power plants, through a mathematical financial feasibility approach. The study area
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Safety and mobility effects of installing speed-humps within unconventional median U-turn intersections Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-06 Usama Elrawy Shahdah; Abdelhalim Azam
The main aim of this paper is to evaluate the effects of installing speed-humps on the safety and mobility of the unconventional median U-turn, three-leg intersections, using the VISSIM microscopic traffic simulation model. The average delay was used as the measure of mobility, while the simulated conflict ratio based on the time-to-collision (TTC) surrogate safety measure, was used as an indicator
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Electric and magnetic properties of cobalt, copper and nickel organometallic complexes for molecular wires Ain Shams Eng. J. (IF 1.949) Pub Date : 2021-01-01 Rehab I. Yousef; Naglaa F.H. Mahmoud; Fouad I. El-Hosiny; Fritz E. Kühn; Ghada Bassioni
This research aims at the electric and magnetic characterization of specific organometallic complexes for the purpose of using them as molecular wires confined in specific channels that can find applications in electronic systems. The hybrid inorganic–organic materials are organometallic complexes from different ligands (2-amino-6- (tert-butyl)-4-(4-methoxyphenyl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile
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Impact of evacuation design parameter on users' evacuation time using a multi-agent simulation Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-26 Syed Ahmad Fadhli Syed Abdul Rahman; Khairul Nizam Abdul Maulud; Biswajeet Pradhan; Sharifah Nurul Ain Syed Mustorpha; Adi Irfan Che Ani
Emergency management is a fundamental issue in building management. Therefore, this study was established to simulate the required times and movement conditions for user evacuation from Campus Infrastructure Building in a 3D environment. Eight simulations are carried out by a multi-agent evacuation simulator, Pathfinder, considering 100% and 70% users capacity with a combination of random, divide,
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A novel self write-terminated driver for hybrid STT-MTJ/CMOS LIM structure Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-15 Prashanth Barla; Vinod Kumar Joshi; Somashekara Bhat
A novel self write-terminated driver is proposed for the hybrid spin transfer torque-magnetic tunnel junction (STT-MTJ)/CMOS circuits based on logic-in-memory (LIM) structure. Using continuous write monitoring mechanism, the novel circuitry completely eliminates the unnecessary flow of write current which abolishes the wastage of write energy in the proposed write driver. Hence, the total energy required
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Enhancing transverse mixing by using triangular vane in the straight channel Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-11 Mahmood Shafai Bejestan; Elham Yabbarehpour; Seyed Mahmood Kashefipour
The transport of pollutants in the large rivers especially in the lowest downstream reach of a river, in which the velocity and the intensity of flow turbulent become very low, is performed to a great extent by dispersion. Any measure to enhance the level of turbulence in the flow field will increase the mixing of pollutants. The main goal of the present study is to investigate how the transverse mixing
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A novel algorithm for generating Pareto frontier of bi-level multi-objective rough nonlinear programming problem Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-11 M.A. Elsisy; M.A. El Sayed; Y. Abo-Elnaga
This paper discusses a new algorithm for generating the Pareto frontier for bi-level multi-objective rough nonlinear programming problem (BL-MRNPP). In this algorithm, the uncertainty exists in constraints which are modeled as a rough set. Initially, BL-MRNPP is transformed into four deterministic models. The weighted method and the Karush-Kuhn-Tucker optimality condition are combined to obtain the
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Establishment of material flow analysis (MFA) for heavy metals in a wastewater system Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-11 Nur Rahishahanim Shahbudin; Norashikin Ahmad Kamal
This study is conducted based on the pressing environmental issue in Malaysia of heavy metals concentrations in wastewater systems. The wastewater system includes the Klang River and its tributaries; the Gombak River and Penchala river; ex-mining areas, and wastewater treatment plants. One of the major causes of heavy metal pollution in rivers is the illegal dumping of industrial waste directly into
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Evaluation of the online teaching of architectural design and basic design courses case study: College of Architecture at JUST, Jordan Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-09 Anwar F. Ibrahim; Ahmed S. Attia; Asma' M. Bataineh; Hikmat H. Ali
Due to COVID-19, universities in Jordan put all classes on-hold and switched to online learning. This study evaluates the online teaching of architecture design at the Department of Architecture- Jordan University of Science and Technology, second semester 2019/2020. The study started with organizing a focus group meeting of ten expert participants. Based on the focus group results, a questionnaire
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Watertight integrity of underwater robotic vehicles by self-healing mechanism Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-09 Gang Ma; Muhammad Hanis Kamaruddin; Hooi-Siang Kang; Pei-Sean Goh; Moo-Hyun Kim; Kee-Quen Lee; Cheng-Yee Ng
Self-healing mechanism (SHM) application has attracted interest due to ability to self-heal as response to damage situations in various conditions, and is being actively explored. However, the application of SHM that can be autonomously triggered for temporarily keeping structural integrity of underwater robotic vehicle (URV) under flooding condition is still scarce publicly. This paper describes an
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New digital testing for parametric fault detection in analog circuits using classified frequency-bands and efficient test-point selection Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-08 Bassam A. Abo-elftooh; Mohamed H. El-Mahlawy; Hani F. Ragai
This paper presents a new parametric fault detection (PFD) approach for testing of linear analog circuits. It combines classified frequency-bands with amplitude weighting for fault controllability and test-points selection for fault observability. The test waveform sweeps on an applicable frequency-band instead of the whole band to stimulate parametric faults. The number of required samples is reduced
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A cloud software life cycle process (CSLCP) model Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-07 Amira A. Alshazly; Mustafa Y. ElNainay; Adel A. El-Zoghabi; Mohamed S. Abougabal
Small to medium-sized enterprises take advantage of the strengths and opportunities of cloud computing. These enterprises require a well-defined software process model to produce reliable and quality cloud software, given their limited resources. Existing related work is surveyed, and the needed missing features are determined. A cloud software life cycle process model is proposed, validated, and verified
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A comprehensive statistical analysis of evaporation rates under climate change in Southern Iran using WEAP (Case study: Chahnimeh Reservoirs of Sistan Plain) Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-06 Hossein Bazzi; Hossein Ebrahimi; Babak Aminnejad
In recent decades, climate change has caused an increase in anomalies in climatic variables and endangered critical infrastructures such as water resources. This change is of paramount importance for southern Iran, especially in the low-precipitation Sistan Plain. Therefore, it is crucial to consider variations in evaporation in the past and the trends of its future changes for water resources planning
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Analytical solution for deep pressure tunnels using composite stratum under a groundwater table Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-05 Zhang Junwei; Zeng Xutao; Tan Yang
Groundwater seepage forces probably act on lining when a deep tunnel in unfavorable geology is excavated under a high groundwater table. Serious water inrush consequently flows into tunnel and threaten the construction and operation safety of tunnel. To obtain analytical solution for deep pressure tunnels using composite stratum under a high groundwater table, the mathematical model is established
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Development of membrane material for oily wastewater treatment: A review Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-05 Nafiu Umar Barambu; Muhammad Roil Bilad; Mohamad Azmi Bustam; Kiki Adi Kurnia; Mohd Hafiz Dzarfan Othman; Nik Abdul Hadi Md Nordin
Our world is facing continued challenges of environmental and ecological pollutions due to human and industrial activities. One of the major threats is oily wastewater mainly discharged from oil fields, refineries, automobile, palm oil industries, and many others. Membrane-based technology offers an almost complete separation of oil from water. However, the technology is facing the challenge of maintaining
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Modelling of expansive clay interaction with skeleton structures considering the effect of replacement permeability Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-04 Dalia Abdelmoneim; Mohammed El-Taher; Sherif A.Y. Akl; Hussein H. El-Mamlouk
The present work investigates the interplay between building stiffness and replacement soil thickness and permeability, when an underlying swelling clay layer is subjected to continuous moisture using 3D numerical analysis. Simulations are done using the commercial finite element software ABAQUS, and data of a reference clay (Regina Clay). The swelling of the clay is simulated as a result of water
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Solution of parabolic PDEs by modified quintic B-spline Crank-Nicolson collocation method Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-04 Mohammad Tamsir; Neeraj Dhiman; Amit Chauhan; Anand Chauhan
In this paper, we present a Crank-Nicolson collocation method based on modified Quintic B-splines for parabolic PDEs. The time-dependent convection–diffusion equation (CDE) and Burgers’ equation are considered. The integration of the problem is handled by using a modified quintic B-spline, over Crank-Nicolson (C-N) scheme, in space. The time-dependent terms are discretized using FDM. The efficiency
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Contribution of analysis and detection the risks appearing in roads using GPR method: A case study in Morocco Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-04 Gamil Alsharahi; Mouncef Filali Bouami; Ahmed Faize; Mohamed Louzazni; Abdellatif Khamlichi; Mohamed Atounti
This work aims to analysis and detects the reasons of the collapse of a road in northern Morocco using simulation based on the Finite-Difference Time-Domain method (FDTD) and a real survey by ground-penetrating radar (GPR) method. In the simulation, we test several targets buried in dry soil at the same depth. Depending on the simulation results GPR survey is done in two zones. The first zone shows
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Review of sewage flow measuring instruments Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-04 Bin Sun; Shizhe Chen; Quan Liu; Yuanbo Lu; Chao Zhang; Hongyuan Fang
The selection of the most suitable instrument for measuring the flow of sewage is especially important due to the urgent work of sewage treatment and complex measurement environment of sewage systems. To this end, the current work reviews a number of sewage flow measuring instruments divided into four categories of differential pressure flowmeters, open channel flowmeters, electromagnetic flowmeters
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Effects of rainfall and runoff-yield conditions on runoff Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-04 Jinping Zhang; Hang Zhang; Honglin Xiao; Hongyuan Fang; Yuping Han; Lei Yu
To reveal the effects of rainfall and runoff-yield conditions on runoff, the abrupt change of the correlation between rainfall and runoff is discussed. Then, according to the correlation between rainfall and runoff with the different rainfall states, the multivariate dynamic regression models of rainfall and runoff are constructed, and the effects of rainfall and runoff-yield conditions on runoff are
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Development of quadruped walking robots: A review Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-03 Priyaranjan Biswal; Prases K. Mohanty
Nowadays, design, development, and motion planning of a mobile robot explore research areas in the field of robotics. Mobile robots have an extensive area of applications in various fields like space exploration, military application, industrial use, and many more. Hence, the design and development of a mobile robot is a crucial part of the above application. Among all the mobile robot, the quadrupedal
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Effect of discrete steel fibres on strength and ductility of FRP laminated RC beams Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-03 S. Syed Ibrahim; S. Eswari; T. Sundararajan
Many of the several authors have reported that reinforced concrete (RC) beams strengthened with externally bonded fibre reinforced polymer (FRP) laminates/sheets considerably reduced its ductility due to increase in stiffness that leads to debonding type of failure without adequate prior notice. This study aims to investigate the strength and ductility of glass fibre reinforced polymer (GFRP) laminated
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Analysis of sodium chloride and sucrose diffusions in mixed convective nanoliquid flow Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-02 P.M. Patil; A. Shashikant; E. Momoniat
Combined convection nanoliquid flow involving three diffusive components is investigated along with a moving plate and magnetic field effects. A wall heating/cooling analysis is carried out, given its engineering and industrial applications. The conservation equations governing the flow are solved by utilising a Quasilinearization technique and finite difference method. Heat, Sucrose and Sodium Chloride
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Numerical investigation on unsteady MHD convective rotating flow past an infinite vertical moving porous surface Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-02 M. Veera Krishna; N.Ameer Ahamad; Ali J. Chamkha
Magnetic field plays an important role in numerous fields such as biological, chemical, mechanical and medical research. In clinical and medical research the magnets are extremely important to create three dimensional images of anatomical and diagnostic importance from nuclear magnetic resonance signals. In view of these applications, the purpose of present research is to the effects of thermal radiation
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New analytical approach for simultaneous feeder reconfiguration and DG hosting allocation in radial distribution networks Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-02 Mohamed A. Abdelkader; Zeinab H. Osman; Mostafa A. Elshahed
This paper proposes an analytical approach for reconfiguration simultaneously with DG hosting (RSDG) to reduce losses in the radial distribution networks (RDNs). Previous researches have mainly utilized Artificial Intelligence (AI) techniques that need dramatic computational efforts and may lead to local-optima. Through an extensive circuit analysis new terms called “Diff and Pivot” are proposed based
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Impact of sustainable design in the construction sector on climate change Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-02 Noha Ahmed; Mohamed Abdel-Hamid; Mahmoud M. Abd El-Razik; Karim M. El-Dash
The demand to reduce the greenhouse gases (GHGs) is a must to address the problem of climate change. This paper aims to help the decision makers locally and internationally to reduce the building's CO2 emissions in the project design phase. The paper studies the indoor CO2 emissions of green and conventional building. The assessment of embodied carbon of a green building material has been studied.
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A newly effective method to maximize power loss reduction in distribution networks with highly penetrated distributed generations Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-02 Thanh Long Duong; Phuoc Tri Nguyen; Ngoc Dieu Vo; Minh Phuong Le
This paper proposes a newly chaotic maps integrated stochastic fractal search (CMSFS) for solving the optimal distributed generation placement (ODGP) problem in radial distribution networks. The objective of the problem is to minimize the network real power loss satisfying the operational constraints of distributed generations (DGs) and the network. The proposed CMSFS approach is an improvement of
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A novel adaptive load frequency control in single and interconnected power systems Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-12-01 Tarek Hassan Mohamed; Mohamed Abdelhamid Mohamed Alamin; Ammar M. Hassan
This paper presents an adaptive load frequency control technique in both of isolated microgrid power system and two interconnected microgrids (MGs). A modified Jaya optimization method is used to make online tuning of the area controller. The Balloon Effect (BE) modification is designed to increase the sensitivity of the Jaya algorithm to both of the system load disturbance and parameters variations
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Performance improvement of DPC in DFIGs during unbalanced grid voltage based on extended power theory Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-26 Ali Mirzakhani; Reza Ghandehari; S. Alireza Davari
Doubly fed induction generator (DFIG) control process is more complex in the calculations under voltage unbalance condition because of the power oscillations, and the conventional controllers cannot maintain the system in a stable and smooth condition. In this paper, a flexible method is presented to control the DFIG based on an improved extended power theory on the direct power control platform. The
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Potential of Epoxidised Natural Rubber Alumina Nanoparticles (ENRAN) sheet as local bridge pier scour countermeasure Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-24 Ibtesam Habib; Wan Hanna Melini Wan Mohtar; Ahmed El-Shafie; Suraya Sharil
This study attempts to reduce scour depth due to localised scour around a bridge pier by introducing Epoxidised Natural Rubber Alumina Nanoparticles (ENRAN) sheet acting as bridge pier sheathing. The performance of the ENRAN sheet was assessed based on the configuration of slots and by roughening with 1 cm diameter spheres. Experiments were conducted with pier shapes of cylindrical, square, and rectangular
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A generalization of the Inverse Weibull model: Properties and applications Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-22 Mansour Shrahili
A new flexible extension of the Inverse Weibull distribution is proposed and studied. The new density can be “right skewed”, “left skewed” and “unimodal” with various shapes, the new failure rate function can be a “decreasing” or “upside down” or “increasing” shaped. Some of its statistical properties are derived. The importance of the new distribution is shown via three applications to real data sets
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New explicit formulas for the some special matrices with fractional derivatives: II Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-21 Jian-Gen Liu; Xiao-Jun Yang; Yi-Ying Feng
Matrices have important applications of statistical analysis, circuits, mechanics, optics, and quantum physics. In this article, matrix explicit formulas of the exponentials for computing exp(αA), where A is a special n × n matrix and α is the order of fractional derivative, were obtained. The definitions of the fractional derivative respectively are the Caputo fractional derivative and Riemann-Liouville
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The efficiency of chloride extraction using un-galvanized steel anode Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-20 Nourhan EL-sayed; Mohamed Kohail; Mohamed A. Khalaf
Electro-chemical Chloride Extraction (ECE) is considered one of the most effective techniques used to extract chloride ions from reinforced concrete structures. The effectiveness of using ECE depends on some important factors such as anode type, current intensity, extraction duration, type of rebar, and chemical properties of concrete. On the other hand, ECE may cause some detrimental effects on some
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The study of convergent and divergent slots on scour reduction around abutment Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-19 Mehran Sehat; Amir Abbas Kamanbedast; Amin Bordbar; Alireza Masjedi; Mohammad Heidarnejad
Bridges are among the oldest, most important and basic communication structures mainly built on the rivers. Many of them are annually destroyed due to the local scouring phenomenon. The current study used convergent and divergent slot tools on abutments, and performed 45 tests to reduce the detrimental effects of this phenomenon around the rectangular bridge abutment. Experiments were performed in
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Analytical modeling of graphene oxide based memristor Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-19 Mohammad Taghi Ahmadi; Banafsheh Alizadeh Arashloo; Truong Khang Nguyen
Nowadays, carbon–based materials like graphene and its derivatives consume great nano-technological applications worldwide. Graphene, due to its attractive properties such as its unusual charge transport, mechanical and thermal capabilities, is in the nano-scaling research spotlight. Additionally, to overcome the scaling limitations of large-scale charge-storage-based memories, the Memristor is focused
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Architectural form finding in arboreal supporting structure optimisation Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-19 Saurav Dixit; Anna Stefańska; Adam Musiuk
Sustainable Development Goals have become a key factor in the design in the twenty-first century. The relationship between the architectural and structural systems is becoming a matter of relevance for sustainable design. The search for minimum material consumption can be seen by drawing inspiration from the solutions found in Nature. The high efficiency of natural forms, has become a contribution
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Dynamic model for transmission lines maximum disconnection time on wind farm Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-19 Ricardo Manuel Arias Velásquez; Yovitza Lucia Romero Ramos; Ian Meldrum; César Díaz; Julien Noel
Wind farm is the cheapest renewable energy resource (RER) in the world, however, the reliability improvement is a key for the future of this power plant. A specially issue is the overhead line interconnection, a weak point, even, a double circuit, the last projects have included modern equipment to mitigate the failure impact in the system as phasor measurement unit (PMU) and Intelligent Electronics
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Articulating assemblage theory for salient urban atmospheres in children’s environments Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-19 Hisham Abusaada; Abeer Elshater; Ahmed S. Abd Elrahman
In using the assemblage theory, this article focuses on the concepts of “city singularity” and “urban atmospheres” in designing better places for children. A literature review revealed a theoretical framework aiming at a possible relationship between singularity, urban atmospheres, and assemblage thinking. A retrospective survey launched among practitioners provided insights for developing the formwork
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System dynamics model of sustainable water resources management using the Nexus Water-Food-Energy approach Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-19 Mohammad Javad Keyhanpour; Seyed Habib Musavi Jahromi; Hossein Ebrahimi
This research has investigated the simulation of sustainable water resources management to assess the impact of socio-economic development on water, food and energy resources security in Khuzestan Province in Iran. To achieve this goal, after simulation of the water-food-energy system dynamics model, taking into account results of the sensitivity analysis, development of water resources sustainability
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Study of enabling factors affecting the adoption of ICT in the Indian built environment sector Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-19 Saurav Dixit; Anna Stefańska; Adam Musiuk; Priyanka Singh
Management of construction projects requires effective and well-organized communication and coordination between all stakeholders as a vital aspect of the successful project. The objective of the study is to analyses the main factors of information and communication technologies incorporation and adoption into the Indian built environment sector. The methodology adopted is to use the primary data collection
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A hybrid circuits-cloud: Development of a low-cost secure cloud-based collaborative platform for A/D circuits in virtual hardware E-lab Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-18 Shaffee Mayoof; Hasan Alaswad; Sameer Aljeshi; Ahmed Tarafa; Wael Elmedany
The development and use of cloud based tools in virtual learning has been increasing in recent years. Electronic Design Automation (EDA) or Electronic Computer-Aided Design (ECAD) is one of the most important tools that are used for electronic circuit design and simulation. There is a number of available cloud based EDA tools that are used in industry and educational institutions. This paper introduces
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Performance analysis and electrical production of photovoltaic modules using active cooling system and reflectors Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-15 Swar A. Zubeer; Omar Mhohammed Ali
The purpose of this study is to improve the electrical performance of the photovoltaic (PV) module by using the sunlight concentration and cooling technique. Three identical polycrystalline PV modules were used in the experiments; ordinary PV module, concentrated PV module (CPV) and CPV system with cooling technique. The experiments were performed in a clear day on September 24th in Duhok, Iraq. The
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Sensitive reactive power dispatch solution accomplished with renewable energy allocation using an enhanced coyote optimization algorithm Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-14 Amlak Abaza; Asmaa Fawzy; Ragab A. El-Sehiemy; Ali S. Alghamdi; Salah Kamel
This study is concerned with solving the optimal reactive power dispatch (ORPD) problem considering the existence of renewable energy resources (RERs). The sensitivity analysis aims at studying the impact of incorporating reactive power resources and wind units for solving the ORPD problem. An enhanced coyote optimization algorithm (ECOA) is developed for solving ORPD problem. The ECOA combines the
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Bond behavior between concrete and steel rebars for stressed elements Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-14 Yousef R. Alharbi; Mahmoud Galal; Aref A. Abadel; Mohamed Kohail
Earlier research efforts related to concrete-to-steel rebar bond behavior predominantly focused on common parameters such as concrete strength, rebar diameter, bonded length and concrete cover, disregarding the actual/real state of concrete that comprises tension cracked regions. This investigation aims to study the concrete-steel rebar bond behavior through bending stressed specimens, in order to
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Artificial Neural Network and NLR techniques to predict the rheological properties and compression strength of cement past modified with nanoclay Ain Shams Eng. J. (IF 1.949) Pub Date : 2020-11-14 Ahmed Mohammed; Serwan Rafiq; Wael Mahmood; Hind Al-Darkazalir; Riyadh Noaman; Warzer Qadir; Kawan Ghafor
One of the most important industries and building operations that cause carbon dioxide emissions is the cement and concrete-related industries that consume about 6 million Btus per metric ton and release about 1 metric ton CO2. Reducing cement consumption while using nanomaterials as cement replacement is favored for environmental protection reasons. In this study, the effect of nanoclay (NC) as an
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