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Retraction Notice To “High Density Conductive Lifepo4 Cathode With Enhanced High-Rate And High Temperature Performance” [Mater. Chem. Phys. 232 (2019) 367–373, (S0254058419304110), (10.1016/J.Matchemphys.2019.05.014)], David Seung-Hyun Lee, Won Bin Im, Xinhua Liang

Chemical and Biochemical Engineering Faculty Research & Creative Works

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal). This article has been retracted at the request of the Editor-in-Chief. The Editor-in-Chief found that the corresponding author of this article submitted the manuscript to the journal without the consent of the two individuals named as "co-authors", using invented email addresses to impersonate them. In addition, based on the raw materials presented to the journal by the second co-author and the Editor-in-Chief's own investigation, the Editor-in-Chief believes that some results in the paper are fabricated. Based on these two findings, the Editor-in-Chief has decided to retract the …

Conceptualizing Maritime-Based Decentralization Toward Better Public Service In The Archipelagic Region, Restu Karlina Rahayu, Ratnaningsih Damayanti, Mayuko Galuh Mahardika

Jurnal Wacana Politik

The purpose of this study is to demonstrate how decentralization affects public services differently in Sumenep Regency’s mainland and island regions. Twenty-seven subdistricts make up the Sumenep Regency; nine of these are dispersed as islands, while eighteen are situated on Madura Island. The discrepancies in growth between mainland and island are caused by this geographic structure. The infrastructure, health, and education sectors are the main subjects of this study. According to this study, obstacles that impede the optimization of education in island locations include school references and far from the Education Office and the Ministry of Religion’s oversight. In the …

Impact Of Aerobic And Resistance Training On Fatigue, Quality Of Life, And Physical Activity In Prostate Cancer Patients: A Systematic Review And Meta-Analysis., Simon Nader, Amr Massoud, Feras Al-Obeidat, Waleed Farouk Mohamed, Wael Hafez, Asrar Rashid, Omar A E Yousef, Muneir Gador, Sabah Ahmed, Mohan Jose, Ahmed Abdelrahman, Mahmoud Abdelshakour, Sherihan Fathey, María F Osorio, Karla Robles-Velasco, Iván Cherrez-Ojeda

All Works

BACKGROUND: Prostate cancer (PCa) is a prevalent cancer with significant morbidity and mortality rates. In most cases, prostate cancer remains asymptomatic until advanced disease manifests with symptoms, such as benign prostate hyperplasia (BPH). Timely detection and better management have improved overall survival in patients with prostate cancer, and fatigue, reduced physical activity, and impaired quality of life (QoL) remain major challenges that impact daily life. OBJECTIVE: This study aimed to systematically review and conduct a meta-analysis to evaluate the impact of aerobic and resistance training on fatigue, quality of life, and physical activity in prostate cancer patients undergoing treatment. MATERIAL …

Illegitimate Tasks, Negative Affectivity, And Organizational Citizenship Behavior Among Private School Teachers: A Mediated–Moderated Model, Nessrin Shaya, Laila Mohebi, Rekha Pillai, Rawan Abukhait

All Works

Social sustainability has gained popularity over the last decade, with a growing body of research calling for researchers to focus on the personal-level determinants of employee satisfaction and well-being in the pursuit of social sustainability. By using negative affectivity as a mediating mechanism and gender and passive leadership as moderators, this study examines a novel sequential mediation–moderation model that explores the relationship between unreasonable tasks and teachers’ Organizational Citizenship Behavior (OCB). It employs the Conservation of Resources (COR) and Stress as Offense to Self (SOS) paradigms as a comprehensive theoretical framework for organizational stressors and organizational behavior. A total of …

Small Needle-Knife Versus Extracorporeal Shock Wave Therapy For The Treatment Of Plantar Fasciitis: A Systematic Review And Meta-Analysis, Chaoqun Feng, Junjie Yao, Yizhou Xie, Min Zhao, Youpeng Hu, Ruoyan Li, Yuanxin Ge, Fei Yang, Xiaohong Fan

Faculty, Staff and Student Publications

BACKGROUND: Plantar fasciitis (PF) is the most common cause of chronic heel pain among adults. Extracorporeal shock wave therapy (ESWT) is the recommended in the current guidelines, and the small needle-knife yields acceptable clinical effects for musculoskeletal pain.

OBJECTIVE: To systematically compare the efficacy of the small needle-knife versus ESWT for the treatment of PF.

METHODS: The present review was registered in the International Prospective Register of Systematic Reviews (i.e., "PROSPERO", CRD42023448813). Two of the authors searched electronic databases for randomized controlled trials (RCTs) comparing the small needle-knife versus ESWT for the treatment of PF, and collected outcomes including curative …

Giant Offshore Pumice Deposit Records A Shallow Submarine Explosive Eruption Of Ancestral Santorini, T Druitt, S Kutterolf, T Ronge, C Hübscher, P Nomikou, J Preine, R Gertisser, J Karstens, J Keller, O Koukousioura, M Manga, A Metcalfe, M Mccanta, I Mcintosh, K Pank, A Woodhouse, S Beethe, C Berthod, S Chiyonobu, H Chen, A Clark, S Debari, R Johnston, A Peccia, Y Yamamoto, A Bernard, Perez T Fernandez, C Jones, Kb Joshi, G Kletetschka, X Li, A Morris, P Polymenakou, M Tominaga, D Papanikolaou

School of Geography, Earth and Environmental Sciences

Large explosive volcanic eruptions from island arcs pour pyroclastic currents into marine basins, impacting ecosystems and generating tsunamis that threaten coastal communities and infrastructures. Risk assessments require robust records of such highly hazardous events, which is challenging as most of the products lie buried under the sea. Here we report the discovery by IODP Expedition 398 of a giant rhyolitic pumice deposit emplaced 520 ± 10 ky ago at water depths of 200 to 1000 m during a high-intensity, shallow submarine eruption of ancestral Santorini Volcano. Pyroclastic currents discharged into the sea transformed into turbidity currents and slurries, forming a …

Engagement For Life's Sake: Reflections On Partnering And Partnership With Rural Tribal Nations, Chelsea Schelly, Valoree Gagnon, Kathleen Brosemer, Kristin Arola

Michigan Tech Publications

In this paper, we reflect on our collective experiences engaging with Anishinaabe Tribal Nations in the Great Lakes region to support Tribal sovereignty in decision-making for food, energy, and water (FEW) systems. In these diverse experiences, we find common lessons. The first set of lessons contributes new empirical knowledge regarding the challenges and opportunities that rural Great Lakes Tribal Nations navigate for enacting sovereignty in decision-making. Our experiences illustrate that while Tribal Nations benefit from a broad and deep commitment to sovereignty and many cultural strengths, they are often challenged by shortages in administrative capacity; technical support; and embeddedness in …

To What Extent Can Decommissioning Options For Marine Artificial Structures Move Us Toward Environmental Targets?, Antony M. Knights, Anaëlle J. Lemasson, Louise B. Firth, Nicola Beaumont, Silvana Birchenough, Jeremy Claisse, Joop W.P. Coolen, Andrea Copping, Michela De Dominicis, Steven Degraer, Michael Elliott, Paul G. Fernandes, Ashley M. Fowler, Matthew Frost, Lea Anne Henry, Natalie Hicks, Kieran Hyder, Sylvia Jagerroos, Milton Love, Chris Lynam, Peter I. Macreadie, Dianne Mclean, Joseph Marlow, Ninon Mavraki, Paul A. Montagna, David M. Paterson, Martin R. Perrow, Joanne Porter, Ann Scarborough Bull, Michaela Schratzberger, Brooke Shipley, Sean Van Elden, Jan Vanaverbeke, Andrew Want, Stephen C.L. Watson, Thomas A. Wilding, Paul J. Somerfield

School of Biological and Marine Sciences

Switching from fossil fuels to renewable energy is key to international energy transition efforts and the move toward net zero. For many nations, this requires decommissioning of hundreds of oil and gas infrastructure in the marine environment. Current international, regional and national legislation largely dictates that structures must be completely removed at end-of-life although, increasingly, alternative decommissioning options are being promoted and implemented. Yet, a paucity of real-world case studies describing the impacts of decommissioning on the environment make decision-making with respect to which option(s) might be optimal for meeting international and regional strategic environmental targets challenging. To address this …

The Influence Of Green Building Design On Tourists' Intention To Stay In Eco-Friendly Hotels: A Study On Perceptions And Preferences, Enas Al Sayed Salama Dr., Gehad Nasr Abdelsalam Dr.

Journal of Engineering Research

Green building design involves integrating sustainable and environmentally friendly practices into the construction and operation of buildings, including hotels, with the goal of minimizing the adverse impact on the environment. This paper delves into the pivotal role of green building design and eco-service provision within the context of green hotels. The aim is to investigate the interconnections among tourists' environmental concerns, their perceived significance of green building design, and their intention to choose green hotels.

To enhance the understanding of tourist behavior and its implications for tourism in Egypt, a questionnaire was administered in Sharm El Sheikh, a prominent Egyptian …

Performance Of Finned Pile Under Torsional Load In Sand, Aalaa Khater, Ahmad Nasr Prof, Waseim Azzam Prof

Journal of Engineering Research

The pile foundations can experience torsional loads from earthquakes, wind, waves, offshore wind turbines, electrical transmission towers, and ship collisions in the maritime environment. Additionally, the axial load from the supporting superstructures can also cause torsional loads. This paper presents a new approach to pile modification called the finned pile. To enhance the torsional capacity of a single pile in the sand (where sand was used in a state of medium density Dr=50%), with or without fins, a number of experimental tests were conducted to investigate the effects of torsional loads (T), these studies involved varying the length, width, shape, …

Experimental Study Of Bent Glass Curtain Walls., Sarah Said Abd El Kariem, Moustafa El Shami, Mahmoud El Nagar

Journal of Engineering Research

A Bent Laminated Glass is commonly used in the residential and commercial structures, its methodology is not present in the curves and tables at the ASTM E1300. Therefore, it has become a need for architects to use basis for this type of glass. To the best of authors ‘knowledge, no one study the bent laminated glass in details. A variety of safety glass that has lately gained popularity in the construction sector is modern laminated glass. Given that it offers a safe failover capability, it is perfect for the automotive industry. Double-lite glass is produced using two or more …

Market Analysis And Bidding Strategy Of Hybrid Renewable Energy Systems Considering Emissions, Fatma Elzahraa, Mohamed Elnemr, Samir Dawoud

Journal of Engineering Research

The competition in the electricity markets makes it difficult to choose a suitable strategy for maximizing profit while reducing harmful emissions. To have an adequate energy price for consumers while minimizing the harmful emissions to the atmosphere and maximizing profits of all participants in the electricity market needs an aggressive bidding strategy. Developing these bidding strategies with the integration of renewable energy (RE) in the electricity market became important. This research studies various bidding strategies for maximizing profits in the deregulated energy market since participants are keen on developing bidding strategies considering emissions. These bidding strategies will consider the integration …

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 …