Engineering Commons^™

System Dynamics And Topsis Models For Sustainable Building Materials Selection Considering Life Cycle Assessment, Shimaa Elshoubaky, Emad Elbeltagi, Mohammed Abd Elrahman, Islam Elmasoudi

Mansoura Engineering Journal

Construction industry is the most contributor to the environmental impacts. Achieving sustainability in construction is complicated, but one of the most optimal strategies is selecting sustainable building materials.

The major goal of this study is to present a new idea for choosing sustainable building materials (SBMs) by simulating sustainability parameters' behaviour. This research proposes a System Dynamics (SD) model along with the TOPSIS method based on the dynamic interactions among a number of sustainable criteria to help decision makers in sustainable building materials selection. The sustainable criteria that form system boundary are determined from previous studies and experts′ opinions. The …

Modified Hcm Method For Delay Estimation At Unsignalized T- Intersections: A Case Study From Delta Region, Egypt, Ahmed Mohsen Geweda, Sayed A. Shwaly, Usama Elrawy Shahdah

Mansoura Engineering Journal

This study proposes a modified gap acceptance method to estimate control delay at unsignalized intersections in Egypt. The Highway Capacity Manual (HCM) method for estimating control delay at unsignalized intersections assumes that all lower-ranking movements yield completely to higher-ranking movements. However, this assumption may not be valid in Egypt, where drivers in lower-ranking movements sometimes violate right-of-way. The proposed method introduces an adjustment factor to account for the amount of real priority that higher-ranking movements actually get from lower-ranking movements. The adjustment factor was developed based on data collected from three un-signalized T-intersections from Mansoura and Damietta cities in Egypt. …

Modular Pandemic Hospitals: A Challenge For Living, Mona Y. Shedid, Eman M. O. Mokhtar

Mansoura Engineering Journal

Over the last several months, the COVID-19 pandemic has globally affected millions of humans and has changed every aspect of our daily life. Hospitals play a major role to combat this pandemic disease however; they are struggling as they are confronted with sudden influx of patients and are jammed to capacity with a lack of available beds and treatment spaces. In managing this health crisis, a rapid resolution concerning our perception and future hospital designs needs to change to save as many lives as possible. According to a pilot study with experts in architecture, four problems during the design of …

Computational Fluid Dynamics Investigation Of Flow Through Pneumatic Control Valve, Wael Elmayyah

Mansoura Engineering Journal

Low-cost on-off pneumatic directional control valves are widely used with digital control circuits to control the position or the speed of pneumatic actuators. These valves have a limited flow capacity that hinders the system fast response. Therefore, deeper understanding of the internal air flow through the valve and its interaction with valve geometry will allow further performance improvement according to the required application.

In this paper, a Computational Fluid Dynamics (CFD) model for a low-cost internal pilot, electrically operated pneumatic 3/2 directional control valve has been developed to investigate the effect of the valve's geometry on the valve's outlet flow …

Green Walls As A Tool To Achieve Thermal Comfort In University Spaces Simulation Study Using (Design Builder) Program, Noha Roshdy Mohamed Mahmoud Atia, Mona Elwazier, Esraa Elazab

Mansoura Engineering Journal

The research introduces a study on the efficiency of green walls in achieving thermal comfort in educational interior spaces. Green walls can reduce energy consumption and carbon dioxide emissions through reducing heating and cooling loads. The research methodology depends on measuring the efficiency of green walls by using design builder a software simulation tool, to assess the thermal comfort in an educational interior space. Results show that energy decreases by 34% and carbon dioxide decreases by 30%.

Effect Of Elevated Temperatures On The Properties Of Concrete Containing Metakaolin, Ahmed F. Abdullah, Mohamed M. Rashwan

Mansoura Engineering Journal

The influence of elevated temperatures on the properties of concrete is significant for study on fire resistance as well as for identifying how isolated vessels, chimneys, and containers in nuclear reactors respond under service conditions. The present experimental investigation assesses the properties of concrete containing Metakaolin (MK) that has been exposed to elevated temperatures. For this purpose, seven concrete mixes were prepared, including one control mix, three mixes containing metakaolin (10, 15, and 20%) as a replacement by weight of cement. And three other mixes in the same proportions as a cement additive. After 28 days, the specimens exposed to …

The Role Of Health Crises In Managing The Workflow In Emergency Departments' Cases Study Egyptian Hospitals, Alshaimaa Hussein Mohammed

Mansoura Engineering Journal

Hospitals and emergency departments have faced numerous challenges as they are considered the first line of defence when receiving patients. It also serves as the first detector of epidemiological conditions to which men turn when medical situations appear. In this regard, there are no Egyptian studies available for evaluating the emergency department. The research discussed the new requirements in workflow that necessitate an assessment of the status quo of emergency departments, especially in Egyptian hospital design. The study examined several emergency departments in Egypt. In this regard, the study discusses various methods and precautions taken in hospitals during epidemics, and …

Efficient Design And Implementation Of Miniaturized Microstrip Diplexer Using Dual Open Stub Loaded Resonator For 5g Applications, Islam F. Abu Elkhair, Hamdi A. Elmikati, Mohamed M. Ashour, Amr H. Hussein

Mansoura Engineering Journal

The design and implementation of a compact size diplexer with high isolation, low insertion loss, and small fractional bandwidths is a promising issue in recent wireless communication systems. In this paper, a novel microstrip diplexer has been introduced based on the utilization of the dual open stub loaded resonator technique. The proposed design has a very compact size of with a high operating power efficiency. The diplexer is designed to operate at two resonance frequencies of and with very low insertion losses of and , respectively. Moreover, it provides high isolation values of and for and , respectively. The diplexer …

Machine-Learning Based Stacked Ensemble Model For Accurate Multi Classification Of Cbc Anemia, Asmaa Mohamed El-Boghdady, Sherif Kishk, Mohamed M Ashour, Eman Abdelhalim

Mansoura Engineering Journal

Anemia Disease (AD) is one of the most common blood problems in the world. According to the World Health Organization, it leads to lack of oxygen and red blood cells. The problem of classifying anemia is crucial in prescribing an appropriate treatment plan. Unfortunately, it is difficult to accurately diagnose the type of anemia as early as possible in order to properly treat the patient. Such a diagnosis can be complicated by the exponential increase in patient numbers, priority rules set by hospitals, and issues of access to adequate medical professionals. This paper proposes the use of a computer-based model …

New Online Approach For Real-Time Precise Point Positioning Gnss Processing, Maha Fekry Elrewiny, Fawzi H. Zarzoura, Mahmoud El-Mewafi

Mansoura Engineering Journal

Real-time precise point positioning (PPP) is a promising technique for accurate position services. The merging of many systems is intended to increase real-time PPP performance. With a rising number of available satellites and progressively increased quality of real-time accurate products of satellite clocks and orbits, Platforms such as CSRS-PPP, AUSPOS, Magic-GNSS, Trimble, and PPP-MANS are reshaping the landscape of embedded solutions in a variety of sectors. the performance of real-time PPP must be tested on a regular basis. This article examines the benefits and drawbacks of real-time PPP, emphasizing its potential for high accuracy, fast decision-making, and easy interaction with …

A Synthesized Dual-Polarized Planar Slotted Antenna Array For Sar Sensors, Ahmed E. Gohar, Haythem H. Abdullah, Mohy El Din Abo El-Soud

Mansoura Engineering Journal

A synthetic aperture radar (SAR) sensor antenna is the main concern in this research work. The antenna specifications are settled according to the link budget of a project funded by the Egyptian Space Agency. The antenna should achieve a 30 dBi gain and an SLL of less than -27 dB with a low-profile and simple structure. The proposed antenna is an array of 16 x 18 planar elements that based on microstrip technology. The 16 x 18 antenna array consists of 16 linear antenna arrays of 18 elements each. Each element of the antenna array has two orthogonal slots with …

Zero-Sequence Current In Cable Systems: A Study, Shimaa A. F. Salem, Rabab R. M. Eiada, Ebrahim A. Badran

Mansoura Engineering Journal

Large zero-sequence current is not a new phenomenon for cable bus duct systems; the question is what influences its magnitude. It was found that the zero-sequence currents were circulating between different circuits in the cable system and that they were being generated by induction between phases in the same cable route. It was determined that the zero-sequence currents could be greatly reduced in a twin circuit by symmetrical configuration of the cables. However, in a four-circuit system, no significant reduction could be achieved even by the symmetrical configuration. Therefore, in this paper, this phenomenon will be analyzed and discussed. ATPDraw …

Power System Stability Enhancement Utilizing Phasor Measurement Units At Transient And Steady State, Moamen M. Mousa, Mahmoud S. Kandel, Sahar S. Kadah, Mohamed F. Kotb

Mansoura Engineering Journal

Abstract—Efficient power system stability monitoring plays a vital role in recent electric grid technologies. It supports operators at control centers to reduce overloading on weak elements and prevent power system from collapse. In this paper Phasor Measurement Units (PMUs) technology has been used for real-time measurements that can obtain fast and accurate data samples from the electric network. The system stability responses during steady state and transient conditions have been studied based on the data driven from PMUs. The proposed study has been applied on WSCC 9-bus system. Test system Simulink has been modified to include the required PMUs and …

Swarm Intelligence For Solving Some Nonlinear Differential Equations, Ahmed Elzaghal, Mohammed Mohammed Elgamal, Ahmed H. Eltanboly

Mansoura Engineering Journal

The Euler method is a well-known numerical technique employed for solving initial value problems of ordinary differential equations. The solution obtained through Euler's method is subject to significant inaccuracies, which tend to amplify with each successive iteration. The Particle Swarm Optimization (PSO) algorithm is a highly effective method for finding optimal solutions to both linear and nonlinear optimization problems. In this particular investigation, the PSO technique was utilized to solve initial value problems associated with ordinary differential equations. The Euler method, on the other hand, employs equidistant grid points to approximate solutions, which can result in significant errors and a …

Enhanced Load Balancing Based On Hybrid Artificial Bee Colony With Enhanced Β-Hill Climbing In Cloud, Maha Zeedan, Gamal Attiya, Nawal El-Fishawy

Mansoura Engineering Journal

This paper proposes enhanced load balancer based artificial bee colony and β-Hill climbing for improving the performance metrics such as response time, processing cost, and utilization to avoid overloaded or under loaded situations of virtual machines. In this study, the suggested load balancer is called enhanced load balancing based on hybrid artificial bee colony with enhanced β-Hill climbing (ELBABCEβHC) to improve the response time, processing cost and the resource utilization. Our proposed approach starts by ranking the task then the greedy randomized adaptive search procedure (GRASP) is used in initializing populations. Further, the binary artificial bee colony (BABC) enhanced with …

Sustainable Urban Development Approach In Residential Building, Ayah Mohamed Ramadhan, Ahmed Noor Eldin

Mansoura Engineering Journal

Globally, Due to its damaging effects on energy, consumption, health, wellbeing, and air pollution, the urban warming phenomenon is gaining worldwide awareness from scientists to planners and legislators. In order to achieve the equation and reach an energy-saving urbanization, we must reconcile with the environment by providing a sustainable urban design that works to rationalize energy and reduce the depletion of resources and reach a sustainable urban environment by providing thermal comfort requirements. In order to attain three key characteristics that are related to one another—thermal comfort, reduced energy consumption, and reduced CO2 emissions—the study will examine a variety of …

Microstrip Antenna Design Using Cst Optimized By Neural Network Algorithm, Hadeer. A Shoeab, Mohamed A.Mohamed, Marzouk El Said A, Ahmed. A. Kabeel

Mansoura Engineering Journal

In this paper, a general design procedure is suggested for the microstrip antennas using artificial neural networks and this is demonstrated using the rectangular patch geometry. The model was analyzed for 1733 data sets of input output parameters. 1300 samples for training and 433 samples for testing and 1500 epoch, learning rate from (0.003 to 0.005). Python was used to create and implement the ANN algorithm model. The mean error in detection of resonance frequencies (return loss peaks) was 0.144GHz on train set, and 0.116GHz on test set. The outputs of the radial basis function are optimized by varying the …

Enhancement In Strength Parameters Of Mortar By Application Of Bacillus Bacteria, A.A. Maaty, M.F. Ghazy, Y. El-Halmouch, G.R. Gadallah

Mansoura Engineering Journal

Cracks in concrete often occur because of environmental factors like moisture, chemical attacks, and temperature changes. This study investigates utilizing microbial induced calcite precipitation (MICP) to address concrete cracking. Bacillus Sphaericus strain is introduced into cement mortar to enhance its physical and mechanical properties, focusing on crack healing. (MICP) microbial induced calcite precipitation reduces water absorption and capillary coefficient by filling cracks with calcium carbonate using bacterial nutrients. After a duration of 90 days, the bacterial samples exhibit a noteworthy decrease in both capillary action and water absorption when contrasted with the control samples. The bacterial mortar demonstrates accelerated progress …

Effects Of Power Stations Emissions On Air Quality In Kuwait, Abdullah F.M. Al-Rukaibi, I. G. Rashed, M.M. El-Halwany, O. Hamed

Mansoura Engineering Journal

The research describes the Gaussian plume model used to estimate the concentration of pollutants emitted from power plants and dispersed in the atmosphere. The object of the research is to compare the air quality between areas which is near to source station and away from the source station. The research estimates the concentrations of pollutants released from six electric power stations in Kuwait using the Gaussian plume model. A power plant with a stack height of 100 m, stack diameter of 2 m, and an emission rate of 1 kg/s for each station is considered. The Pasquill-Gifford stability categories are …

Indoor Pedestrian Navigation Using Pdr/Wi-Fi Integration, Ahmad Yhaya, Ehab H. Abdelhay, Mohammed A. H. Abozied, Ahmed Shaaban Samra

Mansoura Engineering Journal

Positioning of pedestrians is a challenging problem. Especially, in case of global positioning system (GPS) signal outage inside buildings. The inertial navigation system (INS) systems are always used to detect the motion of the human body by placing inertial measurement unit (IMU) in a specific part of the human body. However, using IMU alone will not produce proper navigation solution with sufficient accuracy due to gradually accumulated errors of IMU stochastic drift, noise, and state integration with time. Which lead the recent researchers to enhance the performance of indoor navigation systems using aiding sources such as received signal strength (RSS) …

Converting A Nonlinear Differential Equation With Arbitrary Orders To A System, E. A. A. Ziada

Mansoura Engineering Journal

In the research, the Adomian decomposition method will be applied to get the solution of differential equations of arbitrary orders by transforming them into systems. The existence of a unique solution will be proven. The series solution converges is discussed, and more than the error is estimated. Some applications will be solved, which are the Basset problem and the Bagley-Torvik equation.

Effect Of Different Nanoparticles Spp Grating On Gaas Pin Photodetector Performance, Nada Abdelaziz, Eman Abdelhalim, Waleed M. Gaballah, Ahmed S. Samra

Mansoura Engineering Journal

GaAs is currently one of these compound semiconductors' most preferred options for use in photodetector and photovoltaic applications as its increased mobility of electron and states density, in addition to its lower temperature coefficient when compared to silicon [Si]. Different metallic concerning wavelength of light and nanostructures geometry, subwavelength slit structures have plasmonic impacts and could develop a high light intensity region. All of frequencies within the spectrum of interior visible are absorbed inside the bonds, and as a result of their empty states of electron, they can move across the metal by electron transition. In this work, GaAs PIN …

Usage Of Virtual Reality Techniques In Revival Of Heritage Religious Buildings (Study Examples From The Unesco Tentative List In Egypt), Reham Ezzat Elsayad, Medhat A. Samra

Mansoura Engineering Journal

The research focuses on the architectural documentation of religious buildings with architectural value and the role of this process in reviving heritage values. Every architectural detail had told us a story which is collected as the identity of the city. The fragility of these buildings and their artifacts, natural disasters, climate change, visitors' impact and lack of information usually leads to the inaccessibility of these buildings. But, due to the historical and touristic value of the religious buildings, the documentation process become necessary to benefit both visitors and researchers by availability and ease of access to information.

The traditional documentation …

Optimized Deep Learning Audio Tagging Approach, Fatma S. El-Metwally, Ali I. Eldesouky, Sally M. Elghamrawy

Mansoura Engineering Journal

Audio signal processing is a method for applying powerful algorithms and techniques to record, improve, save and transmit audio content signals. Audio Tagging (AT) is a challenge that requires predicting the tags of audio clips. Developments in deep learning and audio signal processing have resulted in a significant improvement in audio tagging. Many techniques have been used. Several studies have introduced different audio tagging techniques, but the performance of the results obtained from these studies is insufficient. This study proposes an Optimized Deep Learning Audio Tagging (ODLAT] approach to classify and analyze audio tagging. Each input signal is used to …

The Role Of Smart Mashrabiya To Provide Daylighting In Office Buildings, Asma Moawad Gad, Hosny A. Dewer, Mai Wahba Madkour

Mansoura Engineering Journal

Mashrabiya is a distinct feature of our architectural legacy and heritage, daylighting is one of the most significant functions of Mashrabiya. The paper aims at studying the impact of Mashrabiya; in particular, the smart Mashrabiya screen façade on daylighting performance and visual comfort. The application of this methodology occurs in two stages: In the first stage, a typical office room with dimensions of 4 x 6 meters, and a 3-meter height is studied to determine the current state of daylighting levels through the suggested eastern, southern, and western openings in the weather of Cairo, Egypt. The second stage examines the …

Uses Of Geographic Information Systems And Remote Sensing To Study The Natural Resource Management Of The Red Sea Governorate, Egypt, Shrouk Galal, Fawzi Hamid Zarzoura, Mahmoud El-Mewafi

Mansoura Engineering Journal

The Red Sea governorate is rich in natural resources that create challenges for Egypt's future economy and growth. The right ways must be found to manage and discover these resources without wasting them. Remote sensing is one of the best methods used in the development of natural resources. It is based on measuring electromagnetic ray reflections from deep-seated or dispersed natural resources, and these images are processed uniquely for a variety of applications, including the detection of minerals, making land cover maps, shifting rocks, and monitoring of geological distortions. The altered rocks that existed in the study area were identified …

Video Anomaly Detection Using Residual Autoencoder: A Lightweight Framework, Mohamed H. Habeb, May A. Salama, Lamiaa A. Elrefaei

Mansoura Engineering Journal

This paper proposes an efficient lightweight deep spatial residual autoencoder (SRAE) model to detect anomalous events in video surveillance systems. A lightweight network is essential in real-time situations where time is critical. Moreover, it could be deployed on low-resource devices like embedded systems or mobile devices. This makes it a very useful option for real-world situations where there may be a shortage of resources. The proposed network is composed of a 3-layer residual encoder-decoder architecture that is adopted to acquire the salient spatial characteristics representative of normal events in videos. Then, the reconstruction loss is used to find abnormalities, where …

Fluid-Structure Interaction Adopting Full Water Hammer Model, A. O. Abdelbaki, A-R. Abdel-Rahim, Mostafa. M. Awad, W. M. Elawady

Mansoura Engineering Journal

A full water hammer model is developed and coded in the Mathcad software environment. The developed model constitutes a general platform for studying the water hammer transient incorporating the most legitimate parameters that affect the phenomenon. In this study, the fluid-structure interactions during water hammer transients were investigated through the affecting parameters such as pipeline material hysteresis behavior what is so-called viscoelasticity (VE) behavior, and unsteady friction (UF) with different coupling mechanisms such as friction coupling, Poisson coupling, and junction coupling which may be due to a free-to-move valve for system with a reservoir-pipe-valve. Based on the numerical results corresponding …

Analysis Of Stress And Strain Concentrations Around An Elliptical Hole Via Finite Element And Response Surface Methodology, Somaya M. Aiad, Tawakol A. Enab, Mona A. Aboueleaz

Mansoura Engineering Journal

The current investigation aims to study the stress and strain concentration factors (Kσ and Kε) around a central elliptical hole in a rectangular plate under uniaxial and biaxial loads. Finite element and response surface methods (FEM and RSM) were used to predict the values of Kσ and Kε in isotropic and orthotropic material rectangular plates. Thus, the finite element models were built using ANSYS commercial FEM software to obtain the values of Kσ and Kε for some designed cases. Moreover, the response surface methodology was applied to limit the required number of FEM runs based on the number of variables. …

New Dialogue Between Old Crafts And Historical City “Case Study: The Historical Fez Factory In Fowah”, Dalia Shebl

Mansoura Engineering Journal

Traditional crafts are playing an important part of local identity in the city … Nowadays more efforts are being made to preserve them and establish a base and anchor point of economic and touristic development in the Egyptian cities. the paper clarifies the heritage values could evolve in a future through present one of the oldest site in fowah has a characteristic location of traditional crafts therefore it played a great role in contributing and developing many crafts in the other Egyptian cities using a Past-Present-Future framework. The research followed an historical and theoretical methodology for documentation then analytical studies …