Digital Commons Network^™

Identifying The Most Suitable Sites For Solar Energy Projects Using Gis In Owerri, Imo State, Nigeria, Onyedikachi Ukachukwu, Benedicta Dike, Martin Okeke

Engineering and Technology Journal

This study explores the potential of renewable energy in Owerri Municipal, Nigeria, using Geographic Information Systems (GIS) to identify optimal locations for renewable energy projects. The objective is to contribute to sustainable energy development by assessing the spatial distribution of renewable energy resources, evaluating environmental and socio-economic factors, and generating suitability maps for various renewable energy technologies. This was achieved by integrating GIS-based analysis with comprehensive data on solar radiation and Land Use Land Cover (LULC) types. Classifying LULC was a critical step in remote sensing, offering insights into various land cover classes' spatial distribution and dynamics. An aspect model …

Impact Of Recycled Aggregate On Bond Behavior Between Concrete And Steel Bars: A Systematic Review, Nada Sahmi, Eyad Sayhood, Nisreen Mohammed

Engineering and Technology Journal

The use of recycled concrete aggregate (RCA) in structural applications has considerably increased in order to minimize the environmental effects of concrete buildings. Bond is a crucial characteristic of reinforced concrete that relates to the adhesion between the reinforcing steel and the surrounding concrete. This systematic review presents a comprehensive examination of the bond characteristics of steel bars and recycled coarse aggregate concrete RAC In addition, several components influencing both the load-slip curve and the failure mechanisms of RAC specimens were presented and discussed. Furthermore, prediction equations for bond strength and models of the bond-slip relationship between RAC and steel …

The Behavior Of Secant Pile Wall Embedded Within Soil By Numerical Analysis, Ayad Hussein, Mahmood Mahmood, Mohammed Aswad

Engineering and Technology Journal

Deep excavation projects in areas with high groundwater levels, such as industrial zones with large, heavy structures, present significant challenges. Secant piling techniques offer an effective solution for these conditions. These retaining walls are constructed by overlapping reinforced concrete and plain concrete piles to form a continuous barrier against soil and water ingress. This research investigates the effectiveness of secant pile walls as a deep excavation support system, focusing on the impact of various parameters on ground movement, analyzed using the DeepEX program. The case study centers on the Al Dawoodi/Al Mansur District in Baghdad, Iraq. Key factors examined include …

Flexural Behavior Of Reinforced Recycled Concrete Coarse Aggregates Rectangular Beams With And Without Splice Bars, Muslim Attab, Sarmad Abdulqader, Makki Mohsen

Engineering and Technology Journal

Interest in using recycled concrete aggregate (RCA) as a partial or full replacement for natural coarse aggregate (NCA) in concrete production has increased significantly in recent years. This shift contributes to reducing landfill usage and conserving natural resources. This study presents an experimental investigation into the behavior of sixteen rectangular beams cast with varying RCA ratios to examine the effects on ultimate load capacity and concrete strain. The beams, each measuring 1600 mm in length, 170 mm in width, and 260 mm in height, were reinforced with two longitudinal 12 mm steel bars, and 8 mm stirrups spaced at 75 …

Mechanical And Fracture Performance Of Fresh Rubberized Self-Compacting Concrete: A Mini Review, Muntadher Taher, Tareq Al-Attar, Aqeel Al-Adili

Engineering and Technology Journal

Sustainable construction procedures use recyclable material; thus, the construction process and design choices are focused on planet health. SCC is a new generation of concrete that offers the achievement of high durability and flexibility in Rubberized Self-Compacting Concrete (RSCC) by employing recycled tire rubber and Self-Compacting Concrete (SCC). This review investigates the mechanical and cracking characteristics of rubberized self-compacting concrete and rubber content effects. Formwork requirement is brought down by the concrete’s ability to compact itself, thereby increasing user satisfaction. Energy is effectively absorbed, the flexibility of concrete is increased, and tire disposal is made simpler with rubber granules. Rubber …

Impact Of Laser Energy On The Synthesis And Antibacterial Performance Of Cdo Nanomaterials, Ali Yousif, Thikra Mejbel, Kadhim Aadim, Wasan Kadhem

Engineering and Technology Journal

The objective of the current work is to evaluate the antibacterial efficiency of cadmium oxide nanomaterials (CdO NPs) produced through pulsed laser ablation in liquid (PLAL) with laser energy ranging from 400 to 600 mJ. Several characterization techniques, including X-ray diffraction (XRD), UV-Vis spectroscopy, and atomic force microscopy (AFM), were harnessed to analyze synthesized CdO NPs. The nanoparticles had a spherical shape and a size distribution that reduced with higher laser energy. The XRD study confirmed a polycrystalline cubic structure, while AFM measurements disclosed a drop from 133 to 84 nm in the particle size as laser intensity rose. UV-Vis …

Investigation Of Fe3o4 Nanoparticles Synthesized Via Co-Precipitation Coated With Chitosan, Peg, And Folate For Targeted Paclitaxel Delivery In Fibrosarcoma Treatment, Adawiya Haider, Sharafaldin Al-Musawi, Rusul Al-Obaidy, Azhar Haleemd, Mohammed Al-Hindawi, Bakr Taha

Engineering and Technology Journal

Magnetite (Fe3O4) nanoparticles (NPs) were synthesized using a straightforward co-precipitation method from Fe2+/Fe3+ salt solutions as starting materials. This method was optimized to control particle size and morphology, resulting in highly magnetic NPs with crystallite sizes ranging from 20 to 70 nm. The synthesis process involved magnetic stirring at 700 rpm at room temperature, yielding approximately 5 mg of Fe3O4 powder. Structural characterization via X-ray diffraction (XRD) confirmed the stoichiometric composition and particle dimensions. To enhance functionality, the Fe3O4 NPs were coated with chitosan (Cs), polyethylene glycol (PEG), and folic acid (FA), and loaded with the anticancer drug paclitaxel (PTX), …

Enhancing The Removal Of Total Dissolved Solids From Petroleum Wastewater Through Electrocoagulation, Muhammad Jasim, Forat Aljaberi, Saja Alardhi, Ali Salman, Mustafa Hathal, Igor Cretescu, Armando Vargas

Engineering and Technology Journal

This study aims to employ an electrocoagulation reactor to treat petroleum effluent from a local plant and reduce dissolved solids (TDS) to suitable levels for reuse. A continuous reactor configuration featured a finned stainless steel cathode tube positioned between two cylindrical aluminum anodes. This study explored the influence of treatment duration (4–60 minutes), current density (0–6.0 mA.cm-2), and influent rate (50–150 ml/min) on the final TDS value. Flow rate increase correlated with increased final TDS values, while longer electrolysis durations and higher current densities led to decreased TDS levels. Optimized electrolysis conditions at 1 hour, 5 mA.cm-2, and 50 ml/min, …

Experimental And Theoretical Study To Improve Heat Transfer Using Nanofluids Flow In Copper Tube, Zahraa Hussain, Jamal Ali, Hasan Majdi, Abbas Sultan, Bashar Kadhim, Haidar Al-Naseri

Engineering and Technology Journal

Improving heat transfer efficiency in base fluids remains a key challenge in various thermal applications. To address this, several researchers have suggested the integration of nanoparticles into base fluids, leveraging recent advancements in nanotechnology to enhance performance. This study compares different types of nanoparticles and preparation methods for nanofluids and examines the impact of their properties on improving heat transfer. The convective heat transfer under a turbulent flow regime was studied experimentally and numerically in a copper tube used as a test section. Advanced measurement techniques were employed, including a Flux Teq LLC heat flux sensor mounted on the test …

The Factors Affecting Anticancer, Antibacterial, And Photocatalytic Applications Of Zno Nanocomposite Synthesized By Plal: A Mini Review, Huda Al-Attar, Maeda Mohammad, Basma Bedair

Engineering and Technology Journal

Fresh water is essential for life to continue on Earth. The accelerated growth of industrialization and globalization is to blame for the current apex of environmental problems. Heavy metals and organic pollutants discharged from industrial waste are extremely harmful at relatively minimal concentrations when tolerance levels are exceeded. They will lead to several diseases in humans. One method for treating wastewater is semiconductor photocatalysis. It depends mainly on the oxidation-reduction mechanism by holes and electrons, respectively, that are generated by the exposure of the semiconductor oxide into a source of photons. Pulsed laser ablation in liquid (PLAL) has attracted significant …

An Exhaustive Review Of Carbon Dioxide Capture Through The Utilization Of Chemical Solvents Via Absorption, Hala Al-Maaine, Naseer Alhaboubi

Engineering and Technology Journal

The release of carbon dioxide from the combustion of fossil fuels and chimney emissions has emerged as the primary catalyst for global warming. The significant increase in emissions is due to various factors, including power plants that rely on fossil fuels, different industrial processes, and many other factors, all of which are the main causes of environmental pollution. The need has arisen to invent an effective way to reduce carbon dioxide emissions into the atmosphere, where scientists have reviewed several methods, such as transitioning to renewable energy, improving energy generation stations, and capturing carbon dioxide emissions. However, the optimal and …

Robot Path Planning Using Enhanced Q-Learning Algorithm Based On Single Parameter., Noor Fallooh, Ahmed Sadiq, Eyad Abbas, Ivan Hashim

Engineering and Technology Journal

One of the challenging aspects of robot navigation is path planning in a dynamic environment. The Q-learning algorithm is one of the reinforcement learning techniques that can be applied to the path planning of a mobile robot. The vital algorithm for any intelligent mobile robot is path planning. On the other hand, the traditional Q-learning method examines every conceivable state of the robot to choose the optimal path. As a result, this method is very computationally intensive, especially when there is a need to compute a large environment. This study proposes a modified version of the technique for planning robot …

Design And Analysis Of Reconfigurable Filters Employing Varactor And Pin Diodes, Salah Mahdi, Mithaq Raheema, Raaed Hammed

Engineering and Technology Journal

This work presents a comprehensive and comparative study on reconfigurable/tunable microstrip filters, aiming to analyze and understand the impact of varactors, PIN diodes, lumped capacitors, and inductors on the overall filter performance. The study begins by thoroughly classifying reconfigurable microstrip filters based on their reconfigurability functions and the utilization of varactors or PIN diodes. The investigation delves into the influence of varactors and PIN diodes on the performance parameters of microstrip filters. The analysis includes key aspects like center frequency tunability, bandwidth adjustment, and signal attenuation. Additionally, the impact of these reconfigurable elements on insertion loss and return loss is …

Thermal Performance Enhancement Of Solar Collectors By Nanoparticles And Magnetic Field: A Review, Norhan Dawood, Jalal Jalil, Sahar Faraj

Engineering and Technology Journal

The implementation of nanoparticles in solar thermal conversion devices has long been a challenge. Consequently, employing ferrofluids combined with magnetic fields has been an intriguing investigation. The magnetization of magnetic nanoparticles, which noticeably enhances the thermal conductivity of ferrofluid, is one of the principal effects of the magnetic field. Given that the compelling behavior of ferrofluid in the presence of external magnetic fields supplied by either permanent magnets or current-carrying wire as the primary source of magnetic field and the significant effect of this combination on the thermal performance of solar devices, the current review focused on introducing research involving …

Free Vibration Analysis Of Aluminum Foam Metal Sandwich Panels: A Comparative Study Between Numerical And Analytical Modelling, Zahra Hamdan, Sadeq Bakhy, Muhsin Jweeg

Engineering and Technology Journal

This study investigates the natural frequencies and vibrational behavior of aluminum foam sandwich panels by using numerical and analytical methods. The panels consist of an aluminum foam core sandwiched between two aluminum sheets, offering a lightweight yet structurally robust solution, making them ideal for applications in the aerospace and automotive industries. A mathematical model based on classical plate theory (CPT) was developed to compute the natural frequencies of supported rectangular sandwich plates. The Gibson-Ashby equation was employed to estimate the Young's modulus of the aluminum foam core. The analytical model was validated using finite element analysis (FEA) conducted in ANSYS …

Experimental Investigation Of Exhaust Temperature Effect On Teg Cells Power Generation And Assessment Of Engine Sfc And Emissions, Eid Mohamed

Engineering and Technology Journal

The thermoelectric cell generators (TECG) convert thermal power into electrical power generated. The main factor in its operation is the temperature difference (TD) between its surfaces. An experimental investigation was conducted into the waste heat recovery performance of the TECG system. Forty thermoelectric cells (TECs) are supported on the (4 5) upper and (4 5) lower and upper arrangement of the engine exhaust manifold. The electrical power generated (EPG), exhaust gas flow rate, exhaust temperature, brake-specific fuel consumption (BSFC), and exhaust emissions were experimentally investigated under different engine speeds and 50 N.m and 100 N.m engine load conditions. Comparative results …

Recent Advances In Journal Bearings: Wear Fault Diagnostics, Condition Monitoring And Fault Diagnosis Methodologies, Nazik Jebur, Wafa Soud

Engineering and Technology Journal

This review comprehensively encompasses a range of recent studies on journal bearings, emphasizing wear fault diagnostics, condition monitoring, and fault diagnosis methodologies. A significant finding reveals a shift back to the utilization of journal bearings in various rotating machinery such as compressors, motors, turbines, and pumps. Various methodologies employed in these recent studies include vibration analysis, machine learning, deep learning, and both numerical and experimental simulations. Key findings indicate that ensemble models, such as the CNN and deep neural network (CNNEPDNN) model, significantly improve convergence speed, test accuracy, and F-Score in bearing fault diagnosis by 15-20% compared to individual models. …

Finite Element Analysis And Artificial Neural Network For Stress Distribution Of An Aircraft Model In A Wind Tunnel, Ahmed Al-Mulla Khalaf, Sinan Al-Haddad, Bilal Al-Oubaidi, Naseem Ibrahim, Fawaz Abdulwahed, Athraa Hilal

Engineering and Technology Journal

Wind tunnels are instrumental in the aerodynamic analysis of aircraft model structures, enabling the replication of real circumstances for better design and performance evaluation. This paper presents a novel enhancement to stress distribution predictions in wind tunnel simulations by combining Finite Element Analysis (FEA) and Artificial Neural Networks (ANN). First, the research focuses on analyzing ANSYS Fluent data, which provides insights into the complex fluid dynamics inside the wind tunnel. The proposed approach combines the best available FEA and ANN techniques regarding prediction accuracy and computational efficiency. Such findings are those that evidence that predictions of real stress levels using …

The Physical World Of The Greeks, Samuel Sambursky

Hannah Arendt Marginalia - All

London : Routledge and Paul, 1956.

Call#: Q127.G7 S313 1956

Contains underlining and marginalia

PDF information: 17 pages - 5.7MB

Between Peaks And Traditions: Indigenous Andean Women Mountaineers, Hybrid Identities, And Decolonial Resistance Through Sport, Ilina Arsova, Lars Dzikus

Journal of Global South Sport Studies

This paper explores the hybrid identities of Indigenous Bolivian women mountaineers, focusing on how they embrace and resist elements of both Indigenous and Western traditions through sports. Challenging dominant Western narratives of mountaineering (Rak, 2021), these women engage in climbing as an act of cultural preservation (Haynes, 2013; Rak, 2021) and gender advocacy (U.N. Women, 2021). Informed by Indigenous feminism (Caravajal, 2019; Green, 2020) and social identity theory (Tajfel & Turner, 1979), the study explores the intersections of gender, culture, and mountain sports in the South American Andes. Through an interpretivist lens, this study uses narrative inquiry (Clandinin & Connelly, …

Performance Evaluation Of Self-Compacting Geopolymer Concrete With Recycled Brick Aggregate Under Varied Curing And Temperature Conditions, Thavasumony Dhasan, Raid S. Alrashidi, Muhammad Saleem, Joonaith C. Veedu, Shahnawaz Alam

Yanbu Journal of Engineering and Science

In recent days, Self-Compacting Geopolymer Concrete (SCGC) has the potential to revolutionize concrete technology by combining the benefits of both Geopolymer Concrete (GPC) and Self-Compacting Concrete (SCC). The production of SCGC requires proper selection of materials and proportions to achieve a composite concrete with a refined pore structure and low permeability. Additionally, chemical and mineral admixtures play a crucial role in enhancing and refining the pore structure of SCGC, as mineral admixtures reduce the absorbency of the cement matrix further and improve the porosity of the aggregates. In this investigation, the impact of high temperatures on the properties of SCGC …

Evaluating The Interpolation Techniques For Completing The Soil Data And Mapping Jazan City, Saudi Arabia, Using Gis, Ehab Sabi, Mahmoud Abdelrahim Abdelgiom

Yanbu Journal of Engineering and Science

The goal of the study is to determine which of the chosen interpolation techniques is optimal for forecasting soil characteristics in unmeasured areas for infrastructure and building projects. The study also incorporates geotechnical data from 23 regional boreholes with the UNESCO soil classification system developed by the Food and Agriculture Organization (FAO). The mapping and accuracy of different interpolation techniques were assessed using ArcGIS 10.4. Additionally, Spline, Inverse Distance Weighting (IDW), Kriging, Natural Neighbor, and Radial Basis Functions are used to assess the precision and efficacy of several interpolation techniques. The investigation's conclusions showed that the ``natural neighbor'' strategy was …

Bot-Theology: Inviting, Prosperous, And (In)Authentic Community, Daniel Jesse

University Faculty Publications and Creative Works

The paper analyzes the theology, emotions, and community formation of the bots who post on YouTube and the people who respond to them. The paper finds that the bots’ theology is evangelical, charismatic, and prosperity-oriented. The paper also finds that the people who respond to the bots are sincere, supportive, and expressive, and that they create a virtual community of faith that is joyful, hopeful, and trusting. The paper suggests that virtual gatherings of Christians need more scholarly attention and that more research is needed on the emotional formation and theological implications of these online interactions.

Section Iii -- College Of Liberal Arts Policies And Procedures (Updated 03/02/2026), All Faculty

Faculty Handbooks

No abstract provided.

Selassie Atoklo V. Attorney General United States Of America

2026 Decisions

Agency

Spectroscopy And Photochemistry Of The Astrochemical Molecules Sicp And Alcp, Vincent J. Esposito, Tarek Trabelsi, Rebecca Firth, Ryan C. Fortenberry, Joseph S. Francisco

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Through characterization of the electronic excited-state topology, linear-SiCP is predicted to be photostable in the UV region, whereas linear-AlCP is predicted to undergo photodissociation to form Al+CP products after absorption of light in the 200–250 nm range, representing a catalytic process for freeing aluminum molecules from a solid dust grain. Both SiCP and AlCP are predicted to have electronic transitions with large absorption cross sections (∼10^–17 cm²) and to undergo fluorescence from bound excited states. The total electronic absorption spectrum is provided to inform electronic spectroscopy experiments. Silicon (SiC) and aluminum (Al₂O₃) dust …

Unapologetically Her: Leadership Lessons From Mom, Seth D. Kastle Ed.D., Courtney Imhoff

Leadership Faculty Publications

The narrative of this article is a culmination of two lived experiences of the children of Melanie Elliott: Seth Kastle and Courtney Imhoff. Our mother has been the foundational influence on who we are and has been the catalyst in our development of a bias for action, a willingness to lead and a drive to take care of others. Through the process of writing, it became evident that, rather than conflating the overall narrative of this article into one voice, the stories were better told when preserved in their individual narratives. The reader will note that above each paragraph is …

Workforce Participation In Northeast Kentucky: A Qualitative Documentary Study, Timothy A. Gibbs

Morehead State Theses and Dissertations

A capstone submitted in partial fulfillment of the requirements for the degree of Doctor of Education in the Ernst and Sara Lane Volgenau College of Education at Morehead State University By Timothy A. Gibbs on March 2, 2026.

R. S. V. East Brunswick Township School District

2026 Decisions

USDC for the District of New Jersey

Jax Animal Behavior System (Jabs), A Genetics-Informed, End-To-End Advanced Behavioral Phenotyping Platform For The Laboratory Mouse., Anshul Choudhary, Brian Q Geuther, Thomas J. Sproule, Glen L Beane, Vivek Kohar, Jarek Trapszo, Vivek Kumar

Faculty Research 2026

Automated detection of complex animal behavior remains a challenge in neuroscience. Developments in computer vision have greatly advanced automated behavior detection and allow high-throughput preclinical and mechanistic studies. An integrated hardware and software solution is necessary to facilitate the adoption of these advances in the field of behavioral neurogenetics, particularly for non-computational laboratories. We have published a series of papers using an open field arena to annotate complex behaviors such as grooming, posture, and gait as well as higher-level constructs such as biological age and pain. Here, we present our integrated rodent phenotyping platform, JAX Animal Behavior System (JABS), to …