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Articles 1081 - 1094 of 1094
Full-Text Articles in Architecture
Application Of Machine Learning Models In The Capacity Prediction Of Ccfst Columns, Khaled Megahed, Nabil Said Mahmoud, Saad Elden Mostafa Abd-Rabou
Application Of Machine Learning Models In The Capacity Prediction Of Ccfst Columns, Khaled Megahed, Nabil Said Mahmoud, Saad Elden Mostafa Abd-Rabou
Mansoura Engineering Journal
Circular concrete-filled steel tubular (CCFST) columns are widely utilized in structural engineering due to their impressive load-bearing capabilities and ductility. Existing design standards often yield disparate outcomes when applied to structural columns with identical properties, introducing uncertainty for engineering designers. This study introduces an innovative technique to address these challenges using two machine learning (ML) models: Gaussian process regression (GPR) and extreme gradient boosting (XGBoost). These models consider various input variables, including the geometric and material properties of CCFST columns, to estimate the compressive strength. The models undergo training and evaluation using two datasets comprising 1004 axially loaded CCFST columns …
Numerical And Analytical Solution For Nonlinear Free Vibration Of Tapered Beams, Zain Abu Shaeer Abu Shaeer, Ramy I. Shahin, Galal I. El-Baghdady, Saad A. Yehia
Numerical And Analytical Solution For Nonlinear Free Vibration Of Tapered Beams, Zain Abu Shaeer Abu Shaeer, Ramy I. Shahin, Galal I. El-Baghdady, Saad A. Yehia
Mansoura Engineering Journal
This study introduces a computational approach that combines numerical and semi-analytical methods to solve tapered beams' nonlinear free vibration equation. The study employs a numerical approach that relies on the cubic B-spline collocation method and an approximation technique known as the Homotopy perturbation method to approximate the solution to the equation governing nonlinear large-amplitude free vibrations of tapered beams. The effect of vibration amplitude on the frequency of nonlinear vibrations is investigated. The next step is to look at different ways to get close to exact solutions across the whole range of oscillation amplitude. This will show how useful and …
Deep Learning Based Classification Of Focal Liver Lesions With 3 And 4 Phase Contrast-Enhanced Ct Protocols, Ahmed El-Emam, Hossam El-Din Moustafa, Mohamed Moawad, Mohamed Aouf
Deep Learning Based Classification Of Focal Liver Lesions With 3 And 4 Phase Contrast-Enhanced Ct Protocols, Ahmed El-Emam, Hossam El-Din Moustafa, Mohamed Moawad, Mohamed Aouf
Mansoura Engineering Journal
It had been noticed that 3-phase and 4-phase computed tomography protocols with contrast serve as standard examinations for diagnosing liver tumors. Additionally, many patients require periodic follow-up, which entails significant radiation exposure for them. Advancements in image processing facilitate automated liver lesion segmentation. However, the challenge remains in classifying these small lesions by doctors, especially when the liver has different types of lesions with very little intensity difference. Therefore, deep learning can be utilized for the classification of liver lesions. The present work introduces a CNN-based module for the classification of liver lesions. The module consists of four stages: data …
Effect Of The Shape And Volume Of Capsulated Phase Change Materialon The Melting Process And Exergy Efficiency, Ahmed Saad Soliman, Ahmed A. Sultan, Mohamed A. Sultan
Effect Of The Shape And Volume Of Capsulated Phase Change Materialon The Melting Process And Exergy Efficiency, Ahmed Saad Soliman, Ahmed A. Sultan, Mohamed A. Sultan
Mansoura Engineering Journal
Due to the lack of solar energy continuity throughout the day, researchers tended to store this energy in phase change materials (PCM). The goal is to store a big amount of energy in a small PCM mass. In this study, the effect of the capsule shape (circular and elliptical cross-section), number of capsules with the same volume (1, 2, 3, 4, and 5 capsules), and one capsule with increasing its initial volume (multiplying of volume ratio 1 (Vr = 2, 3, 4, and 5)) on the PCM melting process was studied. The results of the numerical model for both circular …
Machine Learning-Based Prediction Of International Roughness Index For Continuous Reinforced Concrete Pavements, Ragaa T. Abd El-Hakim, Ahmed N. Awaad, Sherif M. El-Badawy
Machine Learning-Based Prediction Of International Roughness Index For Continuous Reinforced Concrete Pavements, Ragaa T. Abd El-Hakim, Ahmed N. Awaad, Sherif M. El-Badawy
Mansoura Engineering Journal
The International Roughness Index (IRI) serves as a crucial indicator for ride quality and user comfort. As road roughness escalates, road serviceability diminishes, resulting in reduced vehicle speed and increased travel time, and consequently higher carbon dioxide emissions. Predicting the IRI is of utmost importance for Pavement Management Systems and sustainable development overall. While numerous studies have forecasted the IRI of flexible pavements, there is a notable scarcity of research focusing on rigid pavement performance prediction. This study addresses the gap in predicting IRI for Continuous Reinforced Concrete Pavements (CRCP), an understudied aspect of pavement engineering. Leveraging the Long-Term Pavement …
A Novel Method For The Production Of Pig Iron In “Hadisolb” Company (Industrial-Scale Experiments), El-Sayed A. Rassoul
A Novel Method For The Production Of Pig Iron In “Hadisolb” Company (Industrial-Scale Experiments), El-Sayed A. Rassoul
Mansoura Engineering Journal
The chairman of “Hadisolb” had submitted a memorandum in 1977 in which he claimed that the company will never achieve its designed capacity unless it gets rid of the threatening impurities -high alkalis & MnO- in the blast furnace burden. Meanwhile, the DR steel companies are suffering from the generated accumulated wastes which contain > 67% Fe, zero% alkalis and traces of MnO. The novel idea here is finding the best ratio between El-Gedida ore and the waste material (W.M.). In a previous investigation a series of pilot-scale sintering experiments were performed and it was concluded that the blend containing 70% …
The Mechanical Performance Of Sustainable High Performance Concrete Containing Hybrid Polypropylene Fibers And Exposed To Elevated Temperatures, Ahmed M. Tahwia, Marwa M. Ouda, Mohamed Abdellatief, Walid E. Elemam
The Mechanical Performance Of Sustainable High Performance Concrete Containing Hybrid Polypropylene Fibers And Exposed To Elevated Temperatures, Ahmed M. Tahwia, Marwa M. Ouda, Mohamed Abdellatief, Walid E. Elemam
Mansoura Engineering Journal
The purpose of this research is to investigate the impact of hybrid micro and macro polypropylene fibers (PPFs) on the mechanical characteristics and microstructure of high performance concrete (HPC). Seven concrete mixes with different contents of hybrid polypropylene fibers were tested. The tests included the slump test, compressive and flexural strength, resistance to elevated temperatures, and concrete microstructure. Compared to the control mixture, introducing macro and micro polypropylene hybrid fibers to HPC mixes dramatically enhanced the flexural and compressive strength of concrete while lowering workability. HPC compressive and flexural strengths decrease as temperature rises, nevertheless, the strength loss rate was …
Retrofitting The Building Materials And Techniques Of A Residential Villa: Finding Alternative Solutions, Ahmed Abdelmonteleb M. Ali, Essam S. Almahmoud, Azzam I. Aljutayli, Basem O. Elgendy, Meshal A. Alhrabi, Khattab I. Alyahya
Retrofitting The Building Materials And Techniques Of A Residential Villa: Finding Alternative Solutions, Ahmed Abdelmonteleb M. Ali, Essam S. Almahmoud, Azzam I. Aljutayli, Basem O. Elgendy, Meshal A. Alhrabi, Khattab I. Alyahya
Mansoura Engineering Journal
Approximately 40% of greenhouse gas emissions globally are attributed to the construction industry, with building materials alone accounting for 11%. This study evaluated several building materials and techniques to investigate alternative possibilities for retrofitting a residential villa. The research methodology thoroughly evaluated the building materials and techniques employed in a Saudi villa as a case study located in Buraidah within the Al-Qassim Region. This examination included the structural integrity and cost comparison between the current and suggested scenarios. Alternative building materials and methods are discovered, and their possible application in retrofitting the villa is examined based on this evaluation. The …
Study The Application Of Different Building Technology Systems Case Study: A Residential Villa In Al-Qassim Region, Ksa, Ahmed Abdelmonteleb M. Ali, Essam S. Almahmoud, Basem O. Elgendy, Azzam I. Aljutayli, Meshal A. Alhrabi, Khattab I. Alyahya
Study The Application Of Different Building Technology Systems Case Study: A Residential Villa In Al-Qassim Region, Ksa, Ahmed Abdelmonteleb M. Ali, Essam S. Almahmoud, Basem O. Elgendy, Azzam I. Aljutayli, Meshal A. Alhrabi, Khattab I. Alyahya
Mansoura Engineering Journal
Buildings are responsible for 39% of global energy-related carbon emissions; 11% come from materials and construction, and 28% come from operational emissions (the energy required to heat, cool, and power). Embodied carbon will contribute an increasing amount to the emissions from new buildings in the future as carbon emissions from building operations continue to decline. This study examined several construction methods and materials to evaluate alternatives for remodeling a residential villa. A villa in the Al-Qassim Region, Buraidah, served as a case study for this research. The methodology employed provided a meticulous appraisal of the building materials and techniques currently …
Environmental Impact Assessment Of Water Desalinating Systems: Kuwait As A Case Study, Eissa S. Al-Mutairi, Ibrahim.G. Rashed, Mohamed.M. El-Halwany, Mohamed A. Mosaad
Environmental Impact Assessment Of Water Desalinating Systems: Kuwait As A Case Study, Eissa S. Al-Mutairi, Ibrahim.G. Rashed, Mohamed.M. El-Halwany, Mohamed A. Mosaad
Mansoura Engineering Journal
The challenge of managing water resources is intensifying due to rapid urbanization, population expansion, and the growth of industry and agriculture. Furthermore, the looming threat of climate change significantly impacts both water resources and crop yields. In Kuwait, the majority of its potable water supply is dependent on seawater desalination. Specifically, multistage flash (MSF) desalination accounts for nearly 90% of the country's total desalination capacity, while the remaining 10% is generated using multi-effect distillation (MED) technology. Nevertheless, the environmental repercussions of desalination on Kuwait's ecosystem remain a subject of profound concern. This study employs a comprehensive approach, utilizing peer-reviewed journal …
Power Generation And Water Conservation Potentials For Several Photovoltaic Configurations Installed Over A Fresh Water Surface, Rana A. Kewan, Mohamed S. Salem, Mohamed R. Elmarghany, Maher Bekheit, Gamal I. Sultan
Power Generation And Water Conservation Potentials For Several Photovoltaic Configurations Installed Over A Fresh Water Surface, Rana A. Kewan, Mohamed S. Salem, Mohamed R. Elmarghany, Maher Bekheit, Gamal I. Sultan
Mansoura Engineering Journal
One of the challenges that face photovoltaic systems is depleting performance if their average temperature increases due to solar radiation. Floating photovoltaic (FPV) and submerged photovoltaic (SPV) systems offer a potential solution to such problem. Another major benefit is the decrease of water evaporation by creating an artificial shadow over water. In this paper, an experimental study is presented that includes three different systems: an inclined PV by 30⸰ over water (IPV), an SPV, and an FPV systems and compares their performance with that of a conventional PV system under the same operating conditions. The FPV and SPV systems exhibited …
Exploring The Potential Of Value Engineering To Reduce The Economical Pressure On The Construction Industry In The Case Of Luxury Housing, Ahmed M. Seddik Hassan, Amal R. Tantawy, Bahaa Elboshy, Mahmoud Desouki
Exploring The Potential Of Value Engineering To Reduce The Economical Pressure On The Construction Industry In The Case Of Luxury Housing, Ahmed M. Seddik Hassan, Amal R. Tantawy, Bahaa Elboshy, Mahmoud Desouki
Mansoura Engineering Journal
This research highlights the critical role of value engineering in integrating economic sustainability and environmental stewardship within the luxury housing market. It focuses on reconciling profitability with sustainable practices through a comprehensive study of alternative construction materials, their environmental impacts, costs, and long-term financial benefits. A case study on a luxury villa in New Beni Suef, Egypt, demonstrates the practical application of these principles. The study employs a multi-dimensional approach, including quantitative material selection, environmental performance evaluations using Design Builder software, market research for cost-effective materials, and analysis of long-term electricity costs. It showcases value engineering as essential for economic …
Smart Agriculture Based On Iot Using Drones: A Survey, Shymaa G. Eladl, Hanaa Y. Zaineldin, Amira Y. Haikal, Mahmoud M. Saafan
Smart Agriculture Based On Iot Using Drones: A Survey, Shymaa G. Eladl, Hanaa Y. Zaineldin, Amira Y. Haikal, Mahmoud M. Saafan
Mansoura Engineering Journal
Researchers have studied the potential of unmanned aerial vehicles (UAVs) for real-time visual data acquisition and processing using potent deep learning (DL) algorithms over the past few decades. In this regard, drone use in smart cities has become one of the most common uses for them in recent years. UAVs and the Internet of Things (IoTs) are two popular technologies being used in smart agriculture that are ushering in a new era of agriculture by replacing traditional farming methods. The combination of drones and IoT has the potential to drastically change our lives through real-time data collection and analysis that …
Establishing A Quantitative Assessment Tool For Biophilia In Healthcare Facilities, Sara Moustafa Fouda, Mohanad Ali Fouda
Establishing A Quantitative Assessment Tool For Biophilia In Healthcare Facilities, Sara Moustafa Fouda, Mohanad Ali Fouda
Mansoura Engineering Journal
This study aims at developing a novel assessment tool that can quantitatively evaluate the level of biophilia integration in healthcare facilities. The developed assessment tool helps to address the difficulty of biophilia quantification in the built environment due to the broad nature of the biophilia concept. The methodological approach for the tool depends on employing biophilic design patterns as a basis for biophilia, where these patterns are correlated to a group of biophilia-related features of the WELL Building Standard. This correlation is attained through a list of Integrated Design Guidelines (IDGs) that is proposed to act as an intermediate ground …