Digital Commons Network^™

Experimental Investigation Of Light-Weight Concrete-Filled Stainless Steel Tube Composite Long Columns, Nadia Fath Alla, Kamel Kandeel, Mahmoud El-Nagar

Journal of Engineering Research

The main target of this study is to investigate the behavior and performance of long composite circular stainless steel columns filled with light-weight concrete. An experimental study was carried out on four specimens, two of them are long composite circular stainless steel columns with length 1400 mm, diameter 100 mm and thickness of stainless steel tube 2 mm filled with light-weight and normal concrete with strengths 12 and 26 mpa respectively, which denoted by C1400/12 and C1400/26. The other two specimens are short composite circular stainless steel columns with length 500 mm, diameter 100 mm and thickness of stainless steel …

Review Of Wood Drying Technologies, Mohamed Salah Elmetwaly, Lotfy Hassan Rabie Saker, Mohamed Sameh Salem

Journal of Engineering Research

Abstract- This article provides a comprehensive review of drying optimization in data centers by examining the limitations of drying methods and discussing advances proposed by scientists through whom we can provide a comparison between different drying systems with an emphasis on improving energy efficiency and thermal performance. Wood drying under atmospheric pressure has many advantages, including the ability to dry at lower temperatures (by reducing the likelihood of some drying defects), significantly reduced drying times, color preservation, increased energy efficiency, better control of volatile organic compound emissions, and the ability to dry very large cross sections. Previous studies have achieved …

Effect Of Addition Monofilament And Multifilament Polypropylene Fibers On Mechanical Properties Of Concrete At Elevated Temperatures, Nourhan Osama Hanafy Dr

Journal of Engineering Research

Some researchers studied the effect of different types of fibers on the strengths of concrete at elevated temperature. However, there are some limitations in the study of the strengths of concrete using different methods of cooling after elevated temperature. Thus, the main objective of this research is to study the mechanical properties of concrete with the addition of 1% polypropylene fibers, featuring different structures, at elevated temperatures and with various cooling methods, compared to normal concrete. An experimental program using three different series of mixes, the first series included normal concrete (control) mix without fibers, the second series included 1% …

Linear Up-Conversion Mixer Based On Capacitive Cross Coupling And Source Follower Feedback For Mm-Wave Systems Using 130nm Cmos, Mina Kamal Youssef, Marwa Mansour Abdelfattah, Hala Abdelqader Mansour, Sherif Sayed Hekal

Journal of Engineering Research

This paper presents a linear, high-gain, and wideband up-conversion mixer suitable for millimeter-wave (mm-Wave) applications using 130 nm CMOS technology. The mixer is designed specifically for the K band, focusing on 24 GHz applications in 5G systems. The suggested up-conversion mixer comprises three stages: the input transconductance or intermediate frequency (IF) stage, the switching stage, and the output or radio frequency (RF) stage. The IF stage (transconductance stage) employs a complementary current reuse common gate technique through a dual capacitive cross-coupling (CCC) for improving the conversion gain (CG), and a source follower (SF) feedback to enhance the linearity. The IF …

"Towards A Methodology For Studying The Impact Of Integrating Motion Systems In The External Envelope Of A Building On Natural Lighting Inside The Building– (An Applied Study On A Government School In Greater Cairo)", Nashwa Youssif

Journal of Engineering Research

يدرك المصمم ما للعناصر البيئية ولا سيما الإضاءة الطبيعية من دور فاعل في الوصول إلى تصميم ناجح يحقق أفضل أداء إستخدامي، فالإضاءة الطبيعية تذهب إلى صميم عمل المعماري فيستعين بها للإيحاء بشكل الفراغات ولونها وملمس سطوحها.

وهناك العديد من الأساليب الحديثة التي تساعد المعماري علي إتخاذ قراراته التصميمية الخاصة بتصميم المبنى وكيفية الإستفادة من الإضاءة الطبيعية داخل المباني، وهذه الأساليب تهدف إلى زيادة إحترام البيئة وتفترض تحسينات في النظم البيئية من العزل الحراري وإستغلال مصادر الطاقة الطبيعية والإهتمام بنظم الإضاءة الطبيعية والمواد البنائية.

وتعد تقنية دمج الأنظمة الحركية بالغلاف الخارجي للمبنى مع الإستفادة من الإضاءة الطبيعية داخل هذا …

Early Autism Detection Using Machine Learning Techniques: A Review, Shaimaa Fouad Sharabash, Hany Ali Elghaish

Journal of Engineering Research

Abstract- This article provides a comprehensive literature review on technology-based interventions for Autism Spectrum Disorder (ASD). It emphasizes the challenges in early detection and treatment of ASD, highlighting the spectrum nature of the disorder. The review discusses traditional diagnostic strategies such as behavioural observations, developmental screening and medical testing and goes on to explore advanced machine learning and deep learning models, including SVM, k-nearest neighbours, decision tree and LSTM, for predicting ASD characteristics in toddlers and children. Additionally, recent techniques employing more than ten strategies for ASD detection are summarized and various datasets used in early detection are described. The …

A Mm-Wave Radio Frequency Power Amplifier Based On Transformers Coupling And 2nd Harmonic Termination Network Using 130 Nm Cmos Technology For 5g Applications, Mina Kamal Youssef, Marwa Mansour Abdelfattah, Hala Abdelqader Mansour, Abdelhaleem Abdelnaby Zekry, Sherif Sayed Hekal

Journal of Engineering Research

An efficient and linear power amplifier (PA) for millimeter wave applications using a 130nm CMOS process is presented in this paper. The proposed PA uses transformer coupling for output, inter-stage, and input matching and also utilizes inter-stage inductors to boost RF achievement. The Ansoft high-frequency structure simulator (HFSS) is used to analyze and design the coupling transformers and inter-stage matching inductors to achieve a high coupling coefficient and quality factor over the frequency range of 19 to 29 GHz. The 2^nd harmonic termination networks are connected at each stage of the proposed power amplifier to enhance the gain and …

Lessons Learned From Global Experiences Of Urban Competitiveness To Improve The Humanization Of Egyptian Cities, Asmaa Mostafa Elshamy

Journal of Engineering Research

This study explores the intricate relationship between urban competitiveness and urban humanization in the context of global capital cities and Cairo. By examining key indicators and conducting comprehensive statistical analyses, the study highlights the significance of prioritizing sustainable and inclusive urban development strategies that foster economic growth, social cohesion, environmental sustainability, and cultural preservation. The findings emphasize the critical role of governments and policymakers in shaping vibrant, inclusive, and sustainable urban environments that prioritize the well-being and aspirations of residents. Drawing upon global best practices and lessons learned, the study offers valuable recommendations to enhance the urban competitiveness and humanization …

Global Events As An Approach For Urban Communities’ Development, Asmaa Mostafa Elshamy

Journal of Engineering Research

The study examined the role of global events in developing urban communities and the challenges facing the global events industry, as Dubai achieved revenue growth of 3.3% in 2024, and allocated a budget of 4% for infrastructure worth 2.6 billion dirhams, and the inflation rate in Dubai reached 2.5% in 2017. 2021, which confirms the efficiency of development in the city based on holding international events. The infrastructure in Qatar also increased by 7%, and the percentage of national income from tourism in Sharm El Sheikh reached 11.8%

The study clarifies the role of global activities as an input to …

Use Of Building Information Modeling (Bim) In The Management Of Construction Sector In Egypt, Asmaa Said Khalifa, Eman Attia, Hesham Awad

Journal of Engineering Research

Purpose – The application of Building Information Modelling (BIM) technology in Egypt is hindered by inadequacies or insufficient experience, as only a handful of companies and institutions are able to create three-dimensional models using this technology. Additionally, the majority of architectural education curricula do not fully incorporate BIM. The majority of Egyptian graduates in the fields of architecture, construction, and engineering lack the necessary knowledge or expertise to use BIM technology because universities in Egypt primarily focus on teaching CAD technology rather than BIM technology. This may be because BIM technology is still relatively new or because there aren't many …

Proposition 2: Authorizes Bonds For Public School And Community College Facilities, Angelica Perez, Courtney Yamagiwa

California Initiative Review (CIR)

No abstract provided.

Proposition 5: Allows Local Bonds For Affordable Housing And Public Infrastructure With 55% Voter Approval, Taylor Gonsalves, Logan Bambino

California Initiative Review (CIR)

No abstract provided.

2024 Homecoming Flyer, Morehead State University. Office Of Communications & Marketing.

Communications and Marketing Publications Archive

The 2024 Homecoming Flyer.

Spartan Daily, October 10, 2024, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2024

Volume 163, Issue 21

Editorial For The Special Issue On Nanomaterials For Micro/Nanodevices, Amir Hussain Idrisi

Michigan Tech Publications

The Special Issue of Micromachines, titled "Nanomaterials for Micro/Nanodevices", comprehensively examines the intersection of nanotechnology and micro/nanodevices [...].

Italian Railroad, Construction And Timber Laborers In The Lake Superior Basin And Michigan, 1880s-1920s, Russell Magnaghi

Upper Country: A Journal of the Lake Superior Region

What follows is an overview of the Italian story scattered across the Lake Superior region in the states of Wisconsin and Minnesota and the Canadian province of Ontario and finally the state of Michigan. The role of the unskilled laborer seeking work on rail lines and other construction jobs that started in the 1880s came to an end by the 1920s when railroads no longer needed large numbers of construction crews.

The narrative will begin by focusing on railroad laborers in the Lake Superior basin, but the majority of the story will be centered in the Lower Peninsula of Michigan. …

A Review Of Geopolymer Binder As A Grouting Material, Karla Sierra, Jinwoo An, Ryan Shamet, Jiannan Chen, Yong Je Kim, Boo Hyun Nam, Philip Park

Civil Engineering Faculty Publications

The utilization of geopolymer as a grouting material has gained significant attention in research and construction applications. Geopolymer grout is a type of binding material that differs from traditional grouts, typically based on Portland cement. Researchers have explored its effectiveness and potential applications in grouting processes, considering its unique properties and characteristics. In this paper, various studies employing and utilizing geopolymer as a grouting material are reviewed. The emphasis is on mixture design of geopolymer grout, physical property, chemical composition of geopolymer grout, rheological behavior of geopolymer grout such as yield stress (in case of Bingham fluid) and viscosity, and …

Experimentally Validated Dynamic Equivalent Circuit Model Of Perovskite Solar Cells: Utilizing Machine Learning Algorithms For Parameter Extraction Using I-V And C-V Characteristics, Zahraa Ismail, Eman Sawires, Fathy Amer, Sameh O. Abdellatif

Electrical Engineering

No abstract provided.

Core Operating Manual, 2025-26, Butler University

Policy Documents

This Core Operating Manual is intended to 1) provide students, faculty, and advisors an overview of Butler University’s core curriculum requirements and the value of the core, 2) provide faculty teaching in the core information about what is expected in core courses in terms of content, activities, and assignments, and 3) provide guidance on how the core is and should be administered. It is primarily a practical document; those seeking to learn about the original philosophical undergirding of the core should consult the Appendix, which is taken from our core curriculum’s original guiding document.

Advances In Electrospun Poly(Ε-Caprolactone)-Based Nanofibrous Scaffolds For Tissue Engineering, Karla N. Robles, Fatima Tuz Zahra, Richard Mu, Todd Giorgio

Agricultural and Environmental Sciences Faculty Research

Tissue engineering has great potential for the restoration of damaged tissue due to injury or disease. During tissue development, scaffolds provide structural support for cell growth. To grow healthy tissue, the principal components of such scaffolds must be biocompatible and nontoxic. Poly(ε-caprolactone) (PCL) is a biopolymer that has been used as a key component of composite scaffolds for tissue engineering applications due to its mechanical strength and biodegradability. However, PCL alone can have low cell adherence and wettability. Blends of biomaterials can be incorporated to achieve synergistic scaffold properties for tissue engineering. Electrospun PCL-based scaffolds consist of single or blended-composition …

Literature Review Of Maritime Cyber Security: The First Decade, Avanthika Vineetha Harish, Kimberly Tam, Kevin Jones

School of Engineering, Computing and Mathematics

This is a comprehensive review of the current body of work for cyber security in the marine and maritime sectors. Reviews are useful as a field develops, both for those new to the field, and those contributing to a section of the existing body of work. This looks at the phases of research, from exploratory and positional papers in the early 2010s, to the more recent experimental research, and how ``maritime cyber security" has branched into subtopics addressing human factors, policy, law, cyber-physical security, and more. In addition to different topics of research, this comprehensive review summaries the focus of …

A Simple And Fast Optical Clearing Method For Whole-Mount Fluorescence In Situ Hybridization (Fish) Imaging, Junwoo Suh, Yehe Liu, Jordan Smith, Michiko Watanabe, Andrew M. Rollins, Michael W. Jenkins

Faculty Scholarship

We report a single-step optical clearing method that is compatible with RNA fluorescence in situ hybridization (FISH) imaging. We previously demonstrated microscopy imaging with immunohistochemistry and genetic reporters using a technique called lipid-preserving refractive index matching for prolonged imaging depth (LIMPID). Our protocol reliably produces high-resolution three-dimensional (3D) images with minimal aberrations using high magnification objectives, captures large field-of-view images of whole-mount tissues, and supports co-labeling with antibody and FISH probes. We also custom-designed FISH probes for quail embryos, demonstrating the ease of fabricating probes for use with less common animal models. Furthermore, we show high-quality 3D images using a …

Ai In Education: Villain, Savior, Or Something Else?, Derek Schuurman

University Faculty Publications and Creative Works

Derek C. Schuurman, "AI in Education: Villain, Savior, or Something Else?" in ACSI Leading Insights: Artificial Intelligence, edited by Lynn E. Swaner, Association of Christian Schools International, 2024, 10-16.

Dubai Urban Planning 2040: Resource Requirements In The Urban District 5, Bakhit Alfalasi

Theses

The availability of water, food, energy and air quality resources is compromised by prevailing global issues like environmental stress, climate change, and population growth. This research study details the different requirements for Dubai urban District 5 based on the tenets laid out in the Urban Planning 2040 initiative. The literature review section looks into existing literature on the present state of affairs in the UAE as regards availability of water, food, and energy resources in the country and implications of their production processes on air quality. The Study will employ an exploratory research design, where a systematic review of literature …

Under The Surface Of Perfectionism: A Qualitative Examination Of Perfectionism In Women Leaders, Rachelle Martin

Dissertations

This qualitative study explores the manifestations and management of perfectionism among women leaders, framed through the lens of conservation of resources (COR) theory. By examining the experiences of women across various industries, the research highlights how perfectionism can act both as a strength and a challenge, depending on resource availability and self-awareness. The findings emphasize the compounded pressures faced by women, particularly women of color, and the significant role of self-awareness, coping mechanisms and mitigation techniques. Participants revealed how resource depletion may contribute to heightened perfectionistic tendencies, which subsequently may impact career outcomes. Self-awareness emerged as a moderating factor that, …

Performance Enhancement Of Vanadium Redox Flow Battery With Novel Streamlined Design: Simulation And Experimental Validation, Abdulmonem Fetyan, Bronston P. Benetho, Tawaddod Alkindi, Anugrah Andisetiawan, Musbaudeen O. Bamgbopa, Ayoob Alhammadi, Gumaa A. El-Nagar

All Works

Electrolyte utilization and the consequent concentration polarization significantly limit the potential increase in power density and contribute to electrode degradation in vanadium redox flow batteries during cycling. This study investigates a novel curvature streamlined design, drawing inspiration from natural forms, aiming to enhance the performance of vanadium redox flow battery cells compared to conventional square and rectangular flow-through cell designs. The simulated 3D single-cell model shows a notably superior uniformity in both current and species' concentration distribution within the streamlined design compared to the square and rectangular shapes. Experimental analysis conducted on 3D-printed flow frames demonstrated 2 % enhanced energy …

Adding The Third Dimension: 3d Convolutional Neural Network Diagnosis Of Temporal Lobe Epilepsy, Erik Kaestner, Reihaneh Hassanzadeh, Ezequiel Gleichgerrcht, Kyle Hasenstab, Rebecca W. Roth, Allen Chang, Theodor Rüber, Kathryn A. Davis, Patricia Dugan, Ruben Kuzniecky, Julius Fridriksson Ph.D., Alexandra Parashos, Anto I. Bagić, Daniel L. Drane, Simon S. Keller, Vince D. Calhoun, Anees Abrol, Leonardo Bonilha, Carrie R. Mcdonald

Faculty Publications

Convolutional neural networks (CNN) show great promise for translating decades of research on structural abnormalities in temporal lobe epilepsy into clinical practice. Three-dimensional CNNs typically outperform two-dimensional CNNs in medical imaging. Here we explore for the first time whether a three-dimensional CNN outperforms a two-dimensional CNN for identifying temporal lobe epilepsy-specific features on MRI. Using 1178 T1-weighted images (589 temporal lobe epilepsy, 589 healthy controls) from 12 surgical centres, we trained 3D and 2D CNNs for temporal lobe epilepsy versus healthy control classification, using feature visualization to identify important regions. The 3D CNN was compared to the 2D model and …

On The Turbulent Viscosity Parameter Cμ In The K–Ε Model, Harshit Mishra, Subhas Karan Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Reynolds-averaged Navier–Stokes (RANS) models depend on empirical constants to close the Reynolds stress terms. The empirical constants were obtained using experiments conducted at low Reynolds numbers several decades ago. In this paper, we revisit the turbulent viscosity parameter Cμ, based on the stress–intensity ratio c² = |uw|/k. Here, |uw| and k are the absolute values of the Reynolds stress and turbulent kinetic energy, respectively. Through a priori comparisons, we find that the currently accepted value of Cμ = 0.09 does not agree with the latest direct numerical simulation (DNS) and experimental datasets of wall-bounded turbulent planar flows. Therefore, …

Spectator 2024-10-10, Editors Of The Spectator

The Spectator

No abstract provided.

An Epiq Mass Shelter Training For Public Health Nurses In Georgia To Improve Core Competencies In Disaster Preparedness: A Pilot Study, Ashlie L. Pullen, Sonya Shinhoster

Journal of the Georgia Public Health Association

Background: Research shows that nurses are often ill-prepared for disaster response. A survey conducted by the Georgia Department of Public Health Office of Nursing in April of 2021, demonstrated that 45% of the public health nurses surveyed had never deployed to a mass congregate shelter, and 43% reported they had no formal training related to emergency preparedness or mass sheltering. The purpose of this pilot study was to measure public health nurses’ improvement in familiarity with emergency preparedness and disaster response core competencies as defined by the Emergency Preparedness Information Questionnaire (EPIQ) after a focused educational program and tabletop workshop. …