Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2023

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 38761 - 38772 of 38772

Full-Text Articles in Entire DC Network

Sustainable Urban Development Approach In Residential Building, Ayah Mohamed Ramadhan, Ahmed Noor Eldin Jan 2023

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 …


Comparison Between Different Codes In Design Cold-Formed Steel Lipped Channel Section Subjected To Axial Load Or Bending Moment, Samar El-Sayed Ibrahim Atya, Ahmed Hussain Ali Abdelrahman, Fikry Abdo Salem, Nabil Sayed Mahmoud, Mohamed Ghannam Jan 2023

Comparison Between Different Codes In Design Cold-Formed Steel Lipped Channel Section Subjected To Axial Load Or Bending Moment, Samar El-Sayed Ibrahim Atya, Ahmed Hussain Ali Abdelrahman, Fikry Abdo Salem, Nabil Sayed Mahmoud, Mohamed Ghannam

Mansoura Engineering Journal

This paper presents a comparative analysis between Eurocode3 (EC3), the North American Specification (AISI), and the Egyptian Code of Practice (ECP-205) to design Cold-Formed Steel (CFS) compression and flexural members with channel profiles. The research recognizes similarities and variations in strength measures to facilitate the learning process in the design codes, as well as the expressions and limits provided in the ECP, EC3, and AISI design codes. A computer program was designed to improve the speed of the calculation process. The software was created utilizing the C+ programming language and was programmed to calculate the axial load and bending moment …


A Relativistic Geodetic Approach To Unify The Height System For Africa, Mostafa Ashry, Wen-Bin Shen, Abdelrahim Ruby, Zhang Pengfei, Ziyu Shen, Hussein A. Abd-Elmotaal, Mostafa Abd-Elbaky, Atef A. Makhloof Jan 2023

A Relativistic Geodetic Approach To Unify The Height System For Africa, Mostafa Ashry, Wen-Bin Shen, Abdelrahim Ruby, Zhang Pengfei, Ziyu Shen, Hussein A. Abd-Elmotaal, Mostafa Abd-Elbaky, Atef A. Makhloof

Mansoura Engineering Journal

This study focuses on the establishment of a unified height system for Africa called AFRUHS (African Unified Height System) by utilizing atomic 8 clocks and clock networks. The International Association of Geodesy (IAG) has 9 long aims to construct an International Height Reference Frame (IHRF), but the lack of accurate and globally harmonized vertical coordinates, particularly in Africa, has posed a challenge. To overcome this, the researchers propose using clock networks to determine geopotential or elevation differences between distant stations by measuring the gravitational redshift (GR) through clock frequency comparisons. The research employs simulation studies using the ACES (Atomic Clock …


Indoor Pedestrian Navigation Using Pdr/Wi-Fi Integration, Ahmad Yhaya, Ehab H. Abdelhay, Mohammed A. H. Abozied, Ahmed Shaaban Samra Jan 2023

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) …


A Methodological Framework For Setting Up The Urban Observatory For Informed Cities (Case Study: El Tor City, South Sinai, Egypt), Eman Metwally, Enas Samir Jan 2023

A Methodological Framework For Setting Up The Urban Observatory For Informed Cities (Case Study: El Tor City, South Sinai, Egypt), Eman Metwally, Enas Samir

Mansoura Engineering Journal

Cities are now more than ever seen as crucial to addressing global issues. They have been repeatedly identified as key locations to address the interrelated environmental, health and social issues affecting our increasingly civilized planet. Many global agreements and frameworks, including the 2030 Agenda for Sustainable Development (2015) and the New Urban Agenda (2016) and developing data and information, have certainly emerged as an increasingly critical element in how we think, experience and ultimately manage cities. We produce more urban data than ever before, through a variety of formal and informal knowledge mobilization channels, but this is not always accessible …


Converting A Nonlinear Differential Equation With Arbitrary Orders To A System, E. A. A. Ziada Jan 2023

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.


Fluid-Structure Interaction Adopting Full Water Hammer Model, A. O. Abdelbaki, A-R. Abdel-Rahim, Mostafa. M. Awad, W. M. Elawady Jan 2023

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 Jan 2023

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. …


Machine-Learning Based Stacked Ensemble Model For Accurate Multi Classification Of Cbc Anemia, Asmaa Mohamed El-Boghdady, Sherif Kishk, Mohamed M Ashour, Eman Abdelhalim Jan 2023

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 Jan 2023

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 …


Effect Of Proximal Caries-Driven Access On The Biomechanical Behavior Of Endodontically Treated Maxillary Premolars, Engy M. Kataia Jan 2023

Effect Of Proximal Caries-Driven Access On The Biomechanical Behavior Of Endodontically Treated Maxillary Premolars, Engy M. Kataia

Dentistry

Introduction: This study investigated the effects from the carious cavity and access from it on the fracture resistance of endodontically treated maxillary premolars using finite element analysis (FEA). Methods: A maxillary premolar was used to compare three types of access cavity related to having a proximal carious defect: Caries-driven access (CDA), Conservative access that has a mesial component (MCA) as well as traditional access with the same mesial component (MTA). Cyclic loading was simulated on the occlusal surface and number of cycles till failure (NCF) was compared to the intact tooth model (IT). Mathematical analysis was done to evaluate the …


Effect Of Different Digital Impression Techniques On The Trueness Of Post Space Scans With Fixed Cervical Diameter, Omar Elsergany Jan 2023

Effect Of Different Digital Impression Techniques On The Trueness Of Post Space Scans With Fixed Cervical Diameter, Omar Elsergany

Dentistry

Objective: The aim of this study was to measure the trueness of post space impression by 2 digital impression techniques: Impression Scanning (IS) and Model Scanning (MS) with cervical diameter 3 millimeters. Materials and methods: Fourteen freshly extracted single rooted lower second premolars were endodontically treated using Wave-One single file technique. Then mounted in acrylic blocks parallel to long access using a dental surveyor 2mm above the CEJ, drills in sequence 1.4 and 1.6 millimeter then diamond stone with 3 millimeter diameter were used for teeth preparation with a standardized depth of 8mm. Teeth were scanned by reference scanner InEos5 …