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2025

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Articles 5521 - 5550 of 8615

Full-Text Articles in Engineering

Davis Aqueduct Reach 1 - The Design And Construction Of Large Diameter Pipelines, Shane Mcfarland Mar 2025

Davis Aqueduct Reach 1 - The Design And Construction Of Large Diameter Pipelines, Shane Mcfarland

Spring Runoff Conference

Designing and building a seismically resilient 72-inch pipeline.

District Overview: Weber Basin Water Conservancy District


From Vulnerabilities And Concern To Action: How Perceived Climate Vulnerabilities And Concern For The Great Salt Lake Desiccation Shape Utahns’ Migration Decision, Mufti Nadimul Quamar Ahmed, Jennifer E. Givens Mar 2025

From Vulnerabilities And Concern To Action: How Perceived Climate Vulnerabilities And Concern For The Great Salt Lake Desiccation Shape Utahns’ Migration Decision, Mufti Nadimul Quamar Ahmed, Jennifer E. Givens

Spring Runoff Conference

In light of the current climate crisis, how do Utahns perceive their climate or disaster vulnerabilities and concern for the Great Salt Lake desiccation? Does the perception of vulnerabilities and concern for the Great Salt Lake desiccation influence their intention to migrate from Utah?


Water And Journalism Panel, Heather May, Anastasia Hufham, Ben Winslow, Sheri Quinn Mar 2025

Water And Journalism Panel, Heather May, Anastasia Hufham, Ben Winslow, Sheri Quinn

Spring Runoff Conference

Respondents’ sources of information on Great Salt Lake issues


The Practical And The Possible: How Research Informs Policy And Management For Land, Forest, And Water Management, Charlie Luce Mar 2025

The Practical And The Possible: How Research Informs Policy And Management For Land, Forest, And Water Management, Charlie Luce

Spring Runoff Conference

The practical and the possible: How research informs policy and management for land, forest, and water resources.


What Does Our Water Year Look Like?, Candice Hasenyager Mar 2025

What Does Our Water Year Look Like?, Candice Hasenyager

Spring Runoff Conference

Drip Drip Drop: Water in Utah

In Utah, we are either in drought or preparing for the next one


We Shall Have A Seat At The Table, Yanna Liang Mar 2025

We Shall Have A Seat At The Table, Yanna Liang

Spring Runoff Conference

Uniqueness of ESE 

  • The only environmental BS program in the nation that has “Sustainable” in its title.
  • Sustainability in water treatment, air pollution control, energy production, resource re-utilization 


The Once And Future Variability Of Colorado River Water Resources, Balaji Rajagopalan Mar 2025

The Once And Future Variability Of Colorado River Water Resources, Balaji Rajagopalan

Spring Runoff Conference

The Plot – “Millennium Drought” Since 2000 

  • Current Water Crisis 


Impacts Of Changing Temperatures On The Water Budget In The Great Salt Lake Basin, Grace Affram, Jihad Othman, Reza Morovati, Saddy Pineda Castellanos, Sajad Khoshnoodmotlagh, Diana Dunn, Braedon Dority, Katherine Osorio Diaz, Cody Ratterman, Wei Zhang Mar 2025

Impacts Of Changing Temperatures On The Water Budget In The Great Salt Lake Basin, Grace Affram, Jihad Othman, Reza Morovati, Saddy Pineda Castellanos, Sajad Khoshnoodmotlagh, Diana Dunn, Braedon Dority, Katherine Osorio Diaz, Cody Ratterman, Wei Zhang

Spring Runoff Conference

Temperature affects precipitation phases and the evolution of snowpack.


Per- And Polyfluoroalkyl Substance (Pfas) Degradation In Water And Soil Using Cold Atmospheric Plasma (Cap): A Review, Victor Somtochukwu Mbanugo, Boluwatife Stephen Ojo, Ta Chun Lin, Yue-Wern Huang, Marek Locmelis, Daoru Han Mar 2025

Per- And Polyfluoroalkyl Substance (Pfas) Degradation In Water And Soil Using Cold Atmospheric Plasma (Cap): A Review, Victor Somtochukwu Mbanugo, Boluwatife Stephen Ojo, Ta Chun Lin, Yue-Wern Huang, Marek Locmelis, Daoru Han

Biological Sciences Faculty Research & Creative Works

Per- and polyfluoroalkyl substances (PFASs) are persistent organic chemicals found in numerous industrial applications and everyday products. The excessive amounts of PFASs in water and soil, together with their link to severe health issues, have prompted substantial public concerns, making their removal from the environment a necessity. Existing degradation techniques are frequently lacking due to their low efficiency, cost-effectiveness, and potential for secondary contamination. Cold Atmospheric Plasma (CAP) technology has emerged as a promising alternative, utilizing energized reactive species to break down PFASs under ambient conditions. Therefore, this review examines the efficacy and effectiveness of CAP in degrading PFASs by …


Key Characteristics Of Long-Lived Portland Cement Concrete Airfield Pavements In The United States Air Force Enterprise, Cameron J. Palmer Mar 2025

Key Characteristics Of Long-Lived Portland Cement Concrete Airfield Pavements In The United States Air Force Enterprise, Cameron J. Palmer

Theses and Dissertations

The United States Air Force maintains a $30 billion portfolio of airfield pavements essential for national security. Despite their importance, budget constraints have limited average annual repair funding to $260 million over the past decade, requiring pavements to last significantly longer than their typical life span. This project addresses the central question: What design features or characteristics contribute to the longevity of Portland Cement Concrete (PCC) airfield pavements? Utilizing data from AFCEC's Airfield Pavement Evaluation (APE) team and the PAVER sustainment management system, this study employed linear regression, logistic regression, and deep artificial neural network (ANN) modeling techniques to identify …


Abundance And Prevalence Of Antibiotic-Resistant Escherichia Coli In Tangipahoa Parish, Louisiana Water Bodies Impacted By On-Site Wastewater Treatment System Effluent, Katherine Weise Mar 2025

Abundance And Prevalence Of Antibiotic-Resistant Escherichia Coli In Tangipahoa Parish, Louisiana Water Bodies Impacted By On-Site Wastewater Treatment System Effluent, Katherine Weise

LSU Master's Theses

Antimicrobial resistance (AMR) is a growing public health concern, especially with the spread of extended-spectrum beta-lactamase (ESBL) producing Escherichia coli. This study examined the prevalence and abundance of antibiotic-resistant E. coli in Yellow Water (YW) and Natalbany River (NR) in Tangipahoa Parish, Louisiana, which receive effluent from decentralized wastewater treatment systems. Monthly surface water grab samples were collected at four sites on each river from February 2023 to July 2024 and screened for generic and antibiotic-resistant E. coli using membrane filtration with ceftriaxone and cefotaxime as screening agents per the WHO Tricycle Protocol. We evaluated resistance patterns of the …


A Beginner’S Guide To Artificial Intelligence (Ai) And Generative Ai (Gen Ai) For Small Businesses, Stanley Mierzwa, Iassen Christov Mar 2025

A Beginner’S Guide To Artificial Intelligence (Ai) And Generative Ai (Gen Ai) For Small Businesses, Stanley Mierzwa, Iassen Christov

Center for Cybersecurity

Generative Artificial Intelligence (GenAI) guide for small businesses.

Support and funding for this effort was received from the United States Small Business Administration (Contract 73351023C0016) for this activity and research. Formulated and ultimately created as a result of this grant was the New Jersey Cybersecurity Regional Cluster (NJCRC), which included the partners of NTouch-BCT Strategies, Covenant Business Concepts, and the Kean University Center for Cybersecurity. As part of the free cybersecurity risk assessments offered to small businesses in the community, organizations were introduced to GenAI through a demonstration, with the key information provided in this booklet.


Geotechnical Centrifuge Test Of A Pile-Supported Wharf In Silt (Test Aep01), Andrew Earl Parrott Mar 2025

Geotechnical Centrifuge Test Of A Pile-Supported Wharf In Silt (Test Aep01), Andrew Earl Parrott

Dissertations and Theses

There have been many documented cases in the U.S. and elsewhere of failure to ports, wharves, and bridges during seismic events due to liquefaction of soils adjacent to foundations. The major design guidelines for surface and maritime transportation structures, such as those offered in ASCE 61-14, Port of Anchorage Seismic Design Manual (POA 2017), AASHTO (2020), Caltrans (2012), and many others, differ considerably on the recommendations for combining the expected inertial and kinematic loads on the pile system. This knowledge gap becomes wider for pile foundations embedded in low plasticity silt, as varying opinions exist on the appropriate characterization of …


Canal Improvements: Balancing Piping And Automation, Trevor Nielson Mar 2025

Canal Improvements: Balancing Piping And Automation, Trevor Nielson

Spring Runoff Conference

Factors to Consider 

- Piping 

  • Size/Cost 
  • Loss saved per mile 
  • Longer Lifespan 
  • Safety Benefits 

- Automation 

  • On-going Cost 
  • Cover Existing O&M Costs 
  • More Skilled Staff 
  • Higher Quality of Life for Field Employees 
  • Safety Benefits 


Box Elder County - Countywide Water Master Plan, Quinn Dance Mar 2025

Box Elder County - Countywide Water Master Plan, Quinn Dance

Spring Runoff Conference

Box Elder County Water Master Plan.

Project Background: 

Pre-Project Planning 

  • Box Elder County General Plan Update 
  • Steering Committee Organization 


Soil Health And Water Conservation, Tony Richards Mar 2025

Soil Health And Water Conservation, Tony Richards

Spring Runoff Conference

What are Healthy Soils? 

  • Stable 
  • Functional 
  • Productive 
  • Resilient 


Generalized Plant Disease Detection Using Residual Networks With Eca And Senet Integration, Asmaa Aly Hagar, Marwa Reda Bastwesy, Reda Elbasiony, Mohamed Talaat Faheem Mar 2025

Generalized Plant Disease Detection Using Residual Networks With Eca And Senet Integration, Asmaa Aly Hagar, Marwa Reda Bastwesy, Reda Elbasiony, Mohamed Talaat Faheem

Journal of Engineering Research

Early and accurate detection of plant leaf diseases is crucial for safeguarding agricultural productivity and ensuring food security. Traditional methods of plant disease detection, which often rely on manual inspections and specialized models, encounter challenges such as limited scalability, data annotation difficulties, and task-spe-cific constraints. This paper introduces two innovative and general-ized approaches for plant disease detection by combining Residual Networks with channel attention modules. The first approach inte-grates ResNet-101, the Efficient Channel Attention (ECA) mecha-nism, and the Squeeze-and-Excitation Network (SENet), while the second combines ResNetRS-101 with the ECA mechanism. These models leverage the strengths of ResNets, the dynamic channel …


Mechanical Properties Of High Strength Geopolymer Concrete Incorporating Silica Fume And Hybrid Fibers, Ahmed Hamed Elmaadawy, Elsaid Abd-Elsalam Maaty Prof.Dr, Ahmed Mohamed Tahwia Prof.Dr, Amr Zaki Elkady Doctor Mar 2025

Mechanical Properties Of High Strength Geopolymer Concrete Incorporating Silica Fume And Hybrid Fibers, Ahmed Hamed Elmaadawy, Elsaid Abd-Elsalam Maaty Prof.Dr, Ahmed Mohamed Tahwia Prof.Dr, Amr Zaki Elkady Doctor

Journal of Engineering Research

ABSTRACT

Geopolymer is considered to be an eco-friendly binder and replacement for ordinary Portland cement as it leads to a reduction in CO2 emissions and energy saving.This study investigates the mechanical properties of geopolymer concrete, focusing on its early-age (7 and 28 days) and late-age (56 days) mechanical performance. Four experimental groups were designed, each incorporating different material compositions to assess their influence on compressive strength, splitting tensile strength, flexural strength and to develop optimal mix proportions for geopolymer concrete that balance mechanical performance, minimizing the carbon footprint while maximizing strength .A total of nine fly ash-based geopolymer mixtures designs …


Experimental Investigation Of Multi-Cell Column Foun-Dations Under Bending Loads, Mostafa Abdo Abdllah Sharp Mar 2025

Experimental Investigation Of Multi-Cell Column Foun-Dations Under Bending Loads, Mostafa Abdo Abdllah Sharp

Journal of Engineering Research

This study investigates the structural behavior of connections between multi-cell columns and foundations under bending loads. The term "multi-cell" refers to sections with multiple longitudinal hollow cores separated by thin webs. A total of eight specimens were modeled and analyzed using the finite element software ABAQUS/CAE [1], under a single loading line system until failure. To facilitate this study, a control specimen was created as a benchmark, enabling the assessment of various parameters' impact on the connection. These parameters include embedment depth, the number of cells in the column, the presence of shear studs, internal plates, and concrete infill within …


Impact Of Nanoparticles On Performance Of Metakaolin-Based Geopolymer Mortar, Habiba A. Mohamed, Mohamed R. Sakr, Mohamed O. R. El Hariri Mar 2025

Impact Of Nanoparticles On Performance Of Metakaolin-Based Geopolymer Mortar, Habiba A. Mohamed, Mohamed R. Sakr, Mohamed O. R. El Hariri

Journal of Engineering Research

In response to the growing demand for sustainable construction materials, this study explores the transformative potential of nanoparticles, specifically nano silica and Nano clay, to enhance the mechanical and durability properties of metakaolin-based geopolymer mortar without heat curing. Geopolymer mortars incorporating 2.5% and 5% Nano silica and Nano clay were evaluated for compressive strength, tensile strength and water absorption. Mixture with 5% nano silica exhibited the most significant improvements, achieving compressive and tensile strengths of 36 MPa and 3.5 MPa, alongside the lowest water absorption of 4.65%. X-ray diffraction (XRD) and scanning electron microscopy (SEM) further confirmed the formation of …


Enhancing Gas Cyclone Performance With Exit Diffusers, Omar Mohamed Mourad Dwidar, Yasser El-Shaer, Khairy Elsayed, Seyyed Hossein Hosseini, Goodarz Ahmadi Mar 2025

Enhancing Gas Cyclone Performance With Exit Diffusers, Omar Mohamed Mourad Dwidar, Yasser El-Shaer, Khairy Elsayed, Seyyed Hossein Hosseini, Goodarz Ahmadi

Journal of Engineering Research

This study evaluates seven cyclone designs to enhance pressure drop and collection efficiency (CE), using the conventional cyclone as a baseline. While the conventional design is efficient in particle collection, it experiences significant energy losses due to high values of pressure drops. This study introduces exit diffusers with various configurations—A, B, C, D, E, and F—to improve cyclone performance. Computational Fluid Dynamics (CFD) simulations were used to analyse the pressure drop, tangential velocity, and static pressure at different levels of each cyclone. The findings reveal that cyclone D achieves a 41.1% reduction in pressure drop but at the cost …


A 0.18 Μm Cmos 40 Ghz Miniaturized Coupled-Line Coupler With Enhanced Directivity, Elsayed Ibrahim Elsaidy, Amr H. Hussein Prof.Dr., Mustafa M. Abd Elnaby Prof. Dr., Anwer S. Abd El-Hameed Dr. Mar 2025

A 0.18 Μm Cmos 40 Ghz Miniaturized Coupled-Line Coupler With Enhanced Directivity, Elsayed Ibrahim Elsaidy, Amr H. Hussein Prof.Dr., Mustafa M. Abd Elnaby Prof. Dr., Anwer S. Abd El-Hameed Dr.

Journal of Engineering Research

No abstract provided.


Numerical Study Of Local Scour Around Inclined Bridge Piles Under Wave Conditions, Elsayed Mosaad Shewakh, Ibrahim Mohamed Rashwan, H. Omara Mar 2025

Numerical Study Of Local Scour Around Inclined Bridge Piles Under Wave Conditions, Elsayed Mosaad Shewakh, Ibrahim Mohamed Rashwan, H. Omara

Journal of Engineering Research

Scouring is an issue of interest in the bridge design process, in reality many inclined piers are used. Moreover, scour prosses around inclined piers have non-uniform behaviour depending on its exposure of their foundation into the flow field. The mean purpose of this paper is to study the flow and local scour evolution around the inclined piers to the flow under waves conditions using numerical work. For this purpose, a hydrodynamic and morphological three-dimensional model using RANS equations, and the turbulence k-ε model is used. The inclination direction affects both the strength and location of the scour. Different value of …


Performance Evaluation Of Novel And Efficient Integration Of Solar-Assisted Hvac System With Solar Humidification-Dehumidification Desalination System, Ahmed M. Khaira, Ahmed Hossam, M. M. Bassuoni, Mohamed Abdelgaied Mar 2025

Performance Evaluation Of Novel And Efficient Integration Of Solar-Assisted Hvac System With Solar Humidification-Dehumidification Desalination System, Ahmed M. Khaira, Ahmed Hossam, M. M. Bassuoni, Mohamed Abdelgaied

Journal of Engineering Research

This paper aims to study the performance of a novel and efficient integration of a solar-assisted HVAC system with a solar humidification-dehumidification desalination system for hot climates. The proposed hybrid system aims to achieve thermal comfort conditions, produce freshwater, reduce the required power input, and reduce environmental pollution. To achieve this idea, we designed, constructed, and tested the novel hybrid system consisting of a solar-assisted HVAC system incorporated with a solar humidification-dehumidification desalination system. The device takes the rejected hot air that has passed over a solid desiccant and feeds it into a solar still to extract fresh water, while …


The Performance Of Different Systems In Resisting Seismic Loading For High Rise Concrete Structures, Samy A. Fawzy Mar 2025

The Performance Of Different Systems In Resisting Seismic Loading For High Rise Concrete Structures, Samy A. Fawzy

Journal of Engineering Research

High-rise buildings are subjected to gravity and mostly lateral loading from seismic and wind loads that affect the behavior of such structures. In this study, we will deal with the seismic behavior of different concrete systems. Moment resisting frame, Shear wall, global bracing and dual system are used in this study. A 3D model in static and dynamic analysis was done using ETABS software then a pushover analysis and a parametric study as well for different systems. The study proved that the case of moment resisting frame is the worst in resisting displacements and drift as well. Although the model …


Controlling Verticality Of High-Rise Buildings Using Gnss Techniques Integrated With Laser Plummet, Nasr Mohammady Saba, Yanqing Gao Yanqing, Salem Salama Saleh Mar 2025

Controlling Verticality Of High-Rise Buildings Using Gnss Techniques Integrated With Laser Plummet, Nasr Mohammady Saba, Yanqing Gao Yanqing, Salem Salama Saleh

Journal of Engineering Research

Maintaining vertical alignment is crucial in the construction of high-rise buildings (HRBs). Traditionally, construction teams use laser plummets to transfer reference point coordinates from the foundation to each floor through openings in the concrete slabs. However, as building height increases, the accuracy of the laser beam can be affected, necessitating verification. In an urban development project in Al Alamein, Egypt, the use of the Global Navigation Satellite System (GNSS) was proposed to monitor verticality during construction. For the 270-meter-tall T-TOWER, nine monitoring points were established on the foundation to define the building’s axes for each slab. These points were transferred …


A Generalized Plant Disease Detection Technique Based On Residual Network With Efficient Channel Attention, Asmaa Aly Hagar, Marwa Reda Bastwesy, Reda Elbasiony, Mohamed Talaat Saidahmed Mar 2025

A Generalized Plant Disease Detection Technique Based On Residual Network With Efficient Channel Attention, Asmaa Aly Hagar, Marwa Reda Bastwesy, Reda Elbasiony, Mohamed Talaat Saidahmed

Journal of Engineering Research

The detection of plant diseases a vital task for ensuring crop health and optimizing agricultural productivity. Machine learning and computer vision have significantly advanced the automation of plant disease detection. However, traditional methods face several challenges, particularly with data annotation and the limitations of task-specific models, which often fail to generalize across different plant diseases. These methods are hindered by their reliance on models tailored to individual crops and the ongoing need for manual inspections, leading to inefficiencies and restricted scalability. This study proposes a method designed to enable the efficient and accurate identification of a broad range of plant …


Numerical Analysis Of Cold-Formed Built-Up Battened Steel Columns Under Eccentric Compressive Loading, Mai Mohamed Sheta, Hanan Hussein Eltobgy, Mohamed Massoud El Saadawy, Khaled Abdallah Gharib Mar 2025

Numerical Analysis Of Cold-Formed Built-Up Battened Steel Columns Under Eccentric Compressive Loading, Mai Mohamed Sheta, Hanan Hussein Eltobgy, Mohamed Massoud El Saadawy, Khaled Abdallah Gharib

Journal of Engineering Research

This paper presents a 3D finite element model simulation using ABAQUS finite element software to investigate the behavior of steel battened beam columns under uniaxial loads. The columns consist of double-channel cold-formed slender open sections. The study highlighted the effects of various factors on the ultimate capacity of these beam-column members.

By considering both global and local imperfections, the model focuses on the structural strength and performance of battened cold-formed steel columns made from built-up sections. These cold-formed steel (CFS) columns have a slenderness ratio ranging from 50 to 162. Axial loads are applied at the pin-ended support of the …


Non-Linear Analysis Of Axially Loaded Built-Up Open Section Cold-Formed Columns, Mai Mohamed Sheta, Hanan Hussein Eltobgy, Mohamed Massoud El Saadawy, Khaled Abdallah Gharib Mar 2025

Non-Linear Analysis Of Axially Loaded Built-Up Open Section Cold-Formed Columns, Mai Mohamed Sheta, Hanan Hussein Eltobgy, Mohamed Massoud El Saadawy, Khaled Abdallah Gharib

Journal of Engineering Research

Built-up open cold-formed sections are commonly used in entrances, structural corners, and window frames. These elements exhibit low torsional stiffness and are highly susceptible to cross-sectional deformation. Battened built-up cold-formed steel (CFS) open columns offer enhanced load-carrying capacity when individual profiles cannot withstand applied loads.

Extensive research has focused on understanding the buckling behavior of these structural elements. However, limited studies have explored the impact of spacing between cold-formed C-channel sections. Existing research suggests that battened columns with adequately spaced members exhibit superior structural performance compared to those with closely spaced channels.

A critical factor affecting the performance of battened …


Design And Development Of A Low-Cost Educational Robot: A Scalable And Affordable Software Learning Platform, Diana Refaat Henry Jacob, Mohamed Tarek Elawa, Ashraf Mohamed Hafez Mar 2025

Design And Development Of A Low-Cost Educational Robot: A Scalable And Affordable Software Learning Platform, Diana Refaat Henry Jacob, Mohamed Tarek Elawa, Ashraf Mohamed Hafez

Journal of Engineering Research

This study presents the design and development of a low-cost educational robot to enhance learning experiences in robotics and programming. The system integrates robust software development, ensuring seamless interaction between sensors, actuators, and a custom-designed graphical user interface (GUI). The robot is equipped with various sensors and actuators to support a broad range of experiments and educational applications. The software architecture is detailed, focusing on its modularity and ease of use, enabling students to intuitively program and interact with the robot. Additionally, a series of experiments were conducted to evaluate the performance of the sensors and actuators, providing insights into …