Digital Commons Network^™

Pestel And 3r Waste Management Model For Construction Companies Operating In Central Tanta: A Comprehensive Construction And Demolition Waste Management Model, Moaaz Ali Bastaweesy, Mahmoud Ahmed Zaki, Marwa Ahmed Kamer Eldawla

Journal of Engineering Research

Due to a recent economic boom, Tanta's construction sector has seen fast expansion, which has resulted in high construction and demolition waste (C&DW) creation and waste management operations that lag below international best practices. The current study uses PESTEL analysis, a thorough environmental screening method, to first identify and evaluate significant external and internal elements that may have an impact on C&DW management in a top Central Egyptian construction business. Then, this firm is the topic of a case study that applies the 3R (reduce-reuse- recycle) principles. The offered context-specific current international practices, the described current firm practices, and the …

Kinetic Applications Of Smart Materials In Architecture: A Descriptive Analysis, Youssef Elkhayat

Journal of Engineering Research

In recent years, many smart materials for architectural applications have been invented. Some smart materials can adapt and interact with the surrounding environment and its variants, whether temperature, humidity, daylight or electric current. Smart material changes its shape without any need for assistance, and it can return to its original state without any significant deformation in shape with the end of the external influence. The invention of smart materials stimulated several architects and facade designers to consider using them in various architectural applications such as sun shading, sun breakers, and windows, significantly impacting the concept and technology of movement in …

Modeling Of Equilibrium Shoreline Of Headland Bay Beaches, Mohamed Ahmed Elmarakby, Ahmed Elshinnawy, Bakenaz A. Zeidan

Journal of Engineering Research

Engineering tools for predicting a long-term reaction of beaches include equilibrium beach formulations. They are used to assess how human interference (protection works, breakwaters, ports etc.) has affected the shoreline reaction since they Specify the final orientation of a beach on a time scale of years. One of the equations for determining the Static Equilibrium Planform (SEP) of Headland Bay Beaches (HBBs) that can be found in the literature is the Parabolic Bay Shape Equation (PBSE). The placement of the down-coast control point (P_o), which is the down drift limit from which the PBSE is applied, has a …

Optimum Design Of Metallic And Plastic Cylindrical Gears Using Naturally-Inspired Algorithms: A Review, Marah Elsiedy, Hesham Hegazi, Ahmed Elkassas, Abdelhameed Zayed

Journal of Engineering Research

Abstract- Nowadays, several machinery and vehicles utilize mechanical elements which transmit power ranges from low, middle, and high levels depending on the type of equipment needed. Gears are the most influential design elements on any process during the running of a specific application, moreover engineers tried to obtain the optimality of a gear design which is a more compact, reliable- long service with simply operating features by following a systematic calculation of the mathematical model from standards and handbooks, however this process doesn't give the optimal design of the gears. Optimization techniques have been added to the design process for …

Effects Of Fuel Equivalence Ratio And Swirl Vane Angles On Premixed Burner Turbulent Flame Combustion Characteristics, Medhat Elkelawy Prof. Dr. Eng., E. A. El Shenawy Prof. Dr., Hagar Alm-Eldin Bastawissi Prof. Dr. Eng., Ibrahim Ali Mousa Eng., Mohamed M. Abdel-Raouf Ibrahim Dr. Eng.

Journal of Engineering Research

A turbulent flow field has a major effect on the premixed flame structure and temperature distribution that specifically determines the effectiveness of the burned fuel and the amounts of produced emissions. However, the premixed flame tangential and axial velocity distribution through the flame length help to predict the combustion and emissions attributes of the burned fuel. In this regard, an experimental and analytical investigation on premixed turbulent burners at different equivalence fuel-air ratios with different swirl vane angles has been achieved in the present work to assess the combustion performance and emissions characteristics. A theoretical methodology was carried out to …

Using Biomimicry To Increase Daylighting Efficiency In Egyptian Office Buildings, . Nervana Osama Hanafy

Journal of Engineering Research

The aim is to design a biomimicry-inspired building skin for Giza City's business towers. Tasks to complete include enhancing daylighting efficiency and promoting visual comfort To improve the daylighting performance of office buildings in Giza City, Egypt, this article presents 144 alternatives for biomimicry-inspired building skin to improve daylighting efficiency and visual comfort for Giza City's business towers For modeling, Revit, Rhino v6, and Grasshopper were utilized. The suggested daylighting simulation application, ClimateStudio (v1.8.8244.25334), was chosen. The building orientation, used materials, surface level measurement, working hours, and pertinent weather file data have all been provided. The evaluation criteria include Annual …

Visual Privacy As An Approach To Improve Human Needs In Residential Buildings In Egypt, Inas Samir Ibrahim, Walaa Nour, Mustafa Alwan

Journal of Engineering Research

Architecture reflects a nation’s cultural, social, and environmental characteristics. As a result of the recent globalization, countries have lost their distinctive architectural identities; due to this, it is difficult to identify A country’s unique identity locally and regionally. Specifically, in Egypt, houses in the traditional style are considered one of the most iconic architectural styles. There is an amazing local identity and a unique spatial quality in the region that characterizes Egypt. On the other hand, Western influences have caused many of the values and attributes of houses to fade. One of the most prominent values is the home’s loss …

Enhancing The Performance Of Conventional Solar Still Using The Nano-Doped Paint (Ndp) Coating, Hagar Alm-Eldin Bastawissi Prof.Dr, Nermin Elgendy Engineer, Ayman R. El-Tohamy

Journal of Engineering Research

Nations are throughout the entire globe continuously confronting the problem of potable water shortage. Recently, it has been thought that using solar energy to desalinate brackish water offers a practical answer to the world's water crises. The output of these stills, is meager, and academics haven't done much to boost it in any way. Solar distillers have been proposed as an efficient method to produce potable water. In recent years, saltwater has produced drinking water by various ways. The efficiency of a solar distiller is significantly influenced by various factors, most important factor of them is the absorber surface. In …

Engine Performance And Emissions Improvement Study On Direct Injection Of Diesel/Ammonia Dual Fuel By Adding Cng As Partially Premixed Charge, Medhat Elkelawy Prof. Dr, Eng., Hagar Alm-Eldin Bastawissi Prof. Dr., Mohammed Osama Elsamadony Dr. Eng., Abdallah Salem Abdalhadi Eng.

Journal of Engineering Research

Researchers have recently moved on in their studies to find a solution to prevent or reduce this problem. There have been directions taken by researchers to solve the problem, including, replacing fossil fuels with environmentally friendly types or by combining two or more types of fuel. This is by modifying fuel injection systems as appears in the PCCI, RCCI, or HCCI systems, or working to integrate the two trends by using new injection systems and burning alternative fuels with fossil fuels. Therefore, the trend has good results on the specific consumption of fuel, raising thermal efficiency, and working to reduce …

Experimental Study On The Impact Of Secondary Air Injection And Different Swirl Van Angles On Premixed Turbulent Flame Propagation And Emission Behaviors, Medhat Elkelawy Prof. Dr. Eng., E. A. El Shenawy Prof. Dr., Hagar Alm-Eldin Bastawissi Prof. Dr. Eng., Ibrahim Ali Mousa Eng., Mohamed M. Abdel-Raouf Ibrahim Dr. Eng.

Journal of Engineering Research

The objective of the present paper is to investigate experimentally the flame characteristics utilizing different secondary air inlet direction for different primary air swirl numbers and equivalence fuel-air ratios. In this study, an experimental test rig was carried out to investigate the flame temperature and emission behavior with flame length at the equivalence fuel-air ratios taken0.96, 0.80, 0.70, and 0.60, and swirl vane angles were varied as 20, 30, 45, and 60° to generate different swirl numbers of 0.26, 0.416, 0.71 and 1.23, respectively. In addition to the introduction of secondary air in test combustor, whereas the primary air and …

The Effect Of Building Information Modeling Technology On The Future Of Architecture Education Development In Universities, Mohamed Abd Elnaser Hamoda, Mahmoud Ahmed Zaki, Marwa Ahmed Kamer Faculty Of Engineering, Tanta University

Journal of Engineering Research

At the beginning of the current century , and with the development of computer technology , a new system based on three-dimensional drawings and modeling appeared with an accurate definition and description of all the elements in the submitted design , with the big development of construction methods and the advancement of the related technology and software, the advantages of the new system were defined and became more specific and relied in many organizations , companies and in design and construction institutions , and this system was called the building information modeling (BIM) .

Despite the importance of the system …

Numerical Study Of The Effect Of Long Shroud Diffuser With And Without Plate Obstacle On The Performance Of Savonius Wind Turbine, Alsaied Khalil Mahmoud, Mohamed Mahgoub Bassuoni, Mohamed Fawzy Obiaa, Ahmed Mostafa Khaira

Journal of Engineering Research

This study presents the three-dimensional (3-D) numerical analysis of the influence of the plate obstacle installed at the entrance of the long flanged diffuser on the simple Savonius rotor performance by ANSYS 2022 R1. In the beginning, the 3-D numerical model is validated using the sst k-ω turbulence model with the previous published experimental results at the same conditions, and they are in good agreement with each other. The numerical results indicate the remarkable enhancement of the rotor performance at a tip speed ratio of 0 to 0.7 by using a flanged diffuser with a plate obstacle. The shrouded diffuser …

Comparative Analysis Between The Performance Of Vernacular Articulations And Enhanced Architectural Articulations -Case Study Mashrabiya –, Reham Elsayed Altobaa, Ayman Gamal Abdeltawab, Walaa Mehanna

Journal of Engineering Research

Abstract- Architectural heritage is a powerful image of the community's identity and is only a natural result of human interaction with the surrounding environment. heritage–based -architectural articulations are a way to achieve human comfort in certain conditions and environments. This paper discusses the relationship between architectural heritage and community identity.

It also analyses the different parameters of vernacular articulations and enhanced vernacular articulations that control indoor human thermal comfort. In addition, the paper focuses on the factors affecting these articulations such as airflow, wind, temperature regulation, and light control. the results of this analytical process indicate how design configurations of …

Modeling Of Nearshore Wave Transformations Behind Submerged Breakwaters, Mona Mahmoud Abdelay, Ibrahim Mohamed Rashwan, Ahmed Shalby, Hewida Mohamed Omara

Journal of Engineering Research

Breakwaters can generally be divided into three categories based on where the sea level is: submerged breakwater, emerged breakwater, and lower limit breakwater. Nearshore barriers with an underwater structure called submerged breakwaters are used to dissipate the force of wave strikes and safeguard the shoreline. The wave transmission coefficient value can be used to assess submerged breakwaters' contribution to the wave energy decrease. In the past mathematical and physical models were used to understand how the submerged breakwater affects incoming wave energy, hydrodynamic processes, and morphological changes. In the present study, the MIKE21 SW software as the numerical model was …

Exemplary Studies On The Torsional Response Of Single Pile In Contaminated Sand, Ahmed Nasr, Waseim Azzam, Nada Ramadan

Journal of Engineering Research

Deep foundations, including piles, are employed in types of coastal soil because the soil in such regions may be subjected to several variables that alter the engineering features of the soil, like oil contamination. Together with the loads caused by supported superstructures, the pile foundations may also be susceptible to torsional loads from eccentric, horizontal loads brought on by winds, earthquakes, ship accidents, and waves. Tests have been conducted in this laboratory investigation to examine the behavior of piles under torsional load (T) in polluted sandy soil. Also, tests investigated how the Lp/Dp ratio affected the piles' bearing capacity. Details …

Biophilic Urbanism As A Tool To Conserve Urban Waterfront Of Submerged Heritage Cities, Fatma Ahmed Alashwah, Ayman Abdel Tawab Professor, Ingy Eldarwish Professor, Wesam Mehanna

Journal of Engineering Research

The Urban waterfronts of submerged heritage cities hold significant cultural and natural value that necessitates preservation. However, these sites suffer from a disconnection between nature and culture in heritage conservation practices, negatively impacting heritage sites, ecosystems, and human well-being. Biophilic urbanism offers a valuable tool to address this gap, creating healthier cities. This paper explores how to implement biophilic urbanism elements in conserving urban waterfronts of submerged heritage cities. Through a comprehensive literature review, the study discusses the gap between heritage and nature in conservation practices and explores the perception of biophilic urbanism elements in conserving the urban waterfront of …

The Effect Of An Existing Tunnel And A Newly Excavated Tunnel On Ground Loss Beneath Sand Slope-3d Numerical Study, Ashraf Nazir, Ahmed Nasr, Asmaa Saeed

Journal of Engineering Research

Abstract- Most researchers perform their numerical models for tunnels by modeling perfectly horizontal ground surfaces above the tunnels. The prediction of surface settlement of a sandy slope due to the interaction mechanism between the slope and the tunnels is one of the critical problems in urban areas. As a result, in this work, a numerical analysis using PLAXIS 3D TUNNEL has been performed to investigate the effect of tunnel excavation on the deformation of a shallow sandy slope, and empirically by the Herzog method. The study also assesses the influence of parameters on slope deformation that have not been …

The Antagonist Effect Of Pichia Kluyveri Against The Aflatoxigenic Aspergillus Flavus, Wafa Masoud

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

Aspergillus flavus is one of the main fungi that are known to produce Aflatoxin B1 (AFB1). AFB1 has been detected in many food products and reported to be a carcinogenic. Using a biocontrol agent against A. flavus can safely eliminate or reduce the occurrence of AFB1 in food. Therefore, the effects of four yeast strains of Pichia kluyveri on the growth and spore germination of A. flavus were studied. In addition, the effect of exposure of A. flavus to the yeast’s headspace, as well as the effects of different headspace concentrations of 2-phenyl ethyl acetate and ethyl acetate, on the …

Covid-19 And Burnout Among Community Pharmacists In The West Bank – Palestine, Amjad H. Bazzari, Firas H. Bazzari

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

The coronavirus disease 2019 (COVID-19) pandemic had a strong impact on the physical and mental well-being of healthcare workers. However, the focus has been directed towards nurses and physicians compared to pharmacists. Here, the researchers investigated the prevalence of burnout among community pharmacists in the West Bank – Palestine during the pandemic and the associated COVID-19 factors. The study was conducted using a written questionnaire and the sample included a total of 70 pharmacists. The results showed a burnout prevalence of 45.7% with work-related burnout having the highest impact on both males (50%) and females (54.8%). The level of burnout …

Effects Of Extraction Versus Non Extraction In Orthodontic Treatment On Buccal Corridor Ratio (Bcr), Emad Hussein, Sari Amer, Mohammad Abu Mowais, Nezar Watted, Stathis Effstathiou

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

Objective: To compare the influence of dental extractions to non-extraction orthodontic treatment on smile fullness and buccal corridor ratio (BCR).

Materials and Methods: 47 subjects from a university archive had pre- and post-treatment standardized extraoral diagnostic clinical photographs, randomly selected and distributed according to having undergone extractions (Group 1, n=24, 22 females and 2 males, mean age =20.5 ±5 years) pre-treatment, (Group 3, n=24, 22 females and 2 males, mean age =20.5 ±5 years) post treatment, or non-extraction (Group 2, n=23, 18 females and 5 males, mean age=20.9 ± 4 years) pre-treatment, (Group 4, n=23, 18 females and 5 males, …

Enriching Arabic Content In Occupational Therapy: Cross-Sectional Study, Hassan Izzeddin Sarsak

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

The purpose of this study was to identify the need and level of satisfaction of practicing occupational therapists and students in the Arab world about the Arabic content of the occupational therapy profession, identify difficulties and making recommendations to enhance and enrich the Arabic content in occupational therapy. An online survey was completed by 137 participants from 10 Arab countries, 79.6% were female and 96.4% were in the 18-42 age group. 62% reported that English is the language of occupational therapy references that they have been using, and more than 36% reported that they face various challenges and difficulties in …

Implications And Hydrographs For Two Pre-Bonneville Pluvial Lakes And Double Geosols From 14 Osl-Irsl Ages In Cache Valley, Ne Bonneville Basin, Robert Q. Oaks Jr., Susanne Jänecke, Tammy Rittenour, Thad Erickson, Michelle Nelson

Geosciences Faculty Publications

In the northeastern Great Basin, USA, thirteen new optically stimulated luminescence (OSL) ages and one infrared stimulated luminescence (IRSL) age show that two deep pluvial lakes preceded the Bonneville lake cycle in Cache Valley during marine oxygen-isotope stages (MIS) 6 (213-191 ka) and 4 (56-71 ka), respectively. Our new data define quantitative hydrographs of the Little Valley and Cutler Dam lake cycles in both Cache Valley and the main Bonneville basin. In western Cache Valley, excavation of a faulted, east-plunging spit has sequentially exposed these deposits and overlying MIS 3 Fielding humid-over-arid double geosols that end westward at a strand …

Opportunities And Challenges Of Generative Ai In Construction Industry: Focusing On Adoption Of Text-Based Models, Prashnna Ghimire, Kyungki Kim, Manoj Acharya

Durham School of Architectural Engineering and Construction: Faculty Publications

In the last decade, despite rapid advancements in artificial intelligence (AI) transforming many industry practices, construction largely lags in adoption. Recently, the emergence and rapid adoption of advanced large language models (LLMs) like OpenAI’s GPT, Google’s PaLM, and Meta’s Llama have shown great potential and sparked considerable global interest. However, the current surge lacks a study investigating the opportunities and challenges of implementing Generative AI (GenAI) in the construction sector, creating a critical knowledge gap for researchers and practitioners. This underlines the necessity to explore the prospects and complexities of GenAI integration. Bridging this gap is fundamental to optimizing GenAI’s …

Study Of Vitamin D Deficiency Among Menopausal Women In Basrah City, Weaam Al-Mahfooth

Iraqi National Journal of Medicine

Background: Vitamin D deficiency is well-recognized worldwide. It is common in older adults, especially in women. Vitamin D deficiency is the most underdiagnosed medical condition in menopausal women. There are few epidemiological studies on the vitamin D status of menopausal women in Basra City, Iraq.  Aim: The aim of the study is to determine the prevalence of vitamin D deficiency among menopausal women in Basra City and its correlation with various factors that lead to vitamin D deficiency in menopausal women.  Methods: A prospective cross-sectional study was conducted on 200 menopausal women in the age group 46–65 years attending the …

Bacteriological Profile In Blood Culture Proven Neonatal Sepsis, Sawsan Ali Hussein

Iraqi National Journal of Medicine

Background: Neonatal sepsis is a systemic infection caused by bacteria, viruses, fungi, and parasites. It results in significant morbidity and mortality, accounting for up to half of all newborn deaths in developing countries. Aim: Hence, this study aimed to determine the bacteriological profile of neonatal sepsis and assess its relationships with other demographic variables. Methods: A prospective, cross-sectional study was carried out on 87 neonates with blood culture-proven neonatal sepsis. They were categorized according to the age of onset of symptoms as having early-onset sepsis and late-onset sepsis. The bacterial profile that resulted from their blood cultures was analyzed. Results: …

Histological Study On The Effect Of Sildenafil Citrate (Viagra) On Cerebral Hemisphere Of Adult And Aged Male Albino Rats, Zahraa Taboo, Eman Ghanim Sheet, Waleed Kasim

Iraqi National Journal of Medicine

ABSTRACT _x000D_ Objectives: Sildenafil(Viagra) is a known as perfect medications for treatment in patients agony from impotence and pulmonary arterial raised blood pressure, it cause numerous effects on the nervous system by “nitrogen monoxide-cyclic guanosine monophosphate pathway”. The current paper is designed to examine the histostructural  variations that may happen in the brain of both adult and elderly male rats after long course duration of Sildenafil(Viagra) drug treatment.  Material and Methods: Forty white albino male  rats  were bought from the veterinary  animal house   of  Mosul University.  Twenty of them were  between the ages of 3-4 months  ( adult ) while …

Giant Cell Tumor Of The Patella: A Case Report, Hadi Almaliki

Iraqi National Journal of Medicine

The patella has a low incidence of tumors. Primary neoplasms of the patella account for less than 1% of all primary bone tumors of the lower extremity, the most frequent of them being the giant cell tumor of bone, the chondroblastoma, and the aneurysmal bone cyst. This paper reports the case of a 32-year-old woman with an active giant cell tumor of the patella, examining its clinical and radiological features and providing a brief review of the literature.

Unsupervised Blstm-Based Electricity Theft Detection With Training Data Contaminated, Qiushi Liang, Shengjie Zhao, Jiangfan Zhang, Hao Deng

Electrical and Computer Engineering Faculty Research & Creative Works

Electricity theft can cause economic damage and even increase the risk of outage. Recently, many methods have implemented electricity theft detection on smart meter data. However, how to conduct detection on the dataset without any label still remains challenging. In this article, we propose a novel unsupervised two-stage approach under the assumption that the training set is contaminated by attacks. Specifically, the method consists of two stages: (1) a Gaussian mixture model is employed to cluster consumption patterns with respect to different habits of electricity usage, and with the goal of improving the accuracy of the model in the posterior …

Digital Phobia: An Inquiry For Mapping The Unseen Dimension Of New Digital Anxiety, The ‘Digiphobia’, Amarjit Kumar Singh ,Library Assistant, Md. Arshad Ali , Professional Assistant, Dr. Pankaj Mathur, Deputy Librarian,

Library Philosophy and Practice (e-journal)

Background: As technology continues to advance, individuals' interactions with digital platforms have become integral to daily life. Amidst this technological evolution, a novel concern emerges—Digital Phobia, hereafter referred to as “Digiphobia.” This phenomenon, although not previously explored in scholarly literature, necessitates an in-depth investigation due to its potential impact on individuals' well-being. Our research employs a two-step methodology to investigate its existence, implications, and manifestations.

Introduction: This research paper introduces and proposes the term "Digiphobia" as a comprehensive conceptualization of anxiety arising from interactions with digital spaces, applications, and environments. The proliferation of digital technologies has led to the emergence …

Deepbiomarker2: Prediction Of Alcohol And Substance Use Disorder Risk In Post-Traumatic Stress Disorder Patients Using Electronic Medical Records And Multiple Social Determinants Of Health, Oshin Miranda, Peihao Fan, Xiguang Qi, Haohan Wang, M Daniel Brannock, Thomas R Kosten, Neal David Ryan, Levent Kirisci, Lirong Wang

Faculty, Staff and Students Publications

Prediction of high-risk events amongst patients with mental disorders is critical for personalized interventions. We developed DeepBiomarker2 by leveraging deep learning and natural language processing to analyze lab tests, medication use, diagnosis, social determinants of health (SDoH) parameters, and psychotherapy for outcome prediction. To increase the model's interpretability, we further refined our contribution analysis to identify key features by scaling with a factor from a reference feature. We applied DeepBiomarker2 to analyze the EMR data of 38,807 patients from the University of Pittsburgh Medical Center diagnosed with post-traumatic stress disorder (PTSD) to determine their risk of developing alcohol and substance …