Digital Commons Network^™

Using Sheet Piles To Control Contaminant Transport From Different Sources Through The Soil, Eslam Kashef Elgmmal Eslam K. Elgmmal, Ibrahim Mohamed Rashwan, H. Omara

Journal of Engineering Research

Contaminants can reach the excavation site and lead to groundwater contamination. The present research investigates the effect of using sheet piles for controlling the migration of contaminants to excavation sites that require high-quality groundwater, taking into consideration changing concentrations of contaminants and changing soil surface depth downstream of the sheet piles. The arrival time of contamination to reach under the sheet piles and the time for reaching contamination to the excavation site were studied. Additionally, the effect of using two different sources of contaminants with different concentrations on the mixing time between them through groundwater was investigated. Two modules, SEEP/W …

Water Quality Assessment Of Irrigation Streams Within Dakahlia Governorate, Egypt, Mahy Adel Elbialy, Ibrahim Mohamed Rashwan, Saleh Shalaby, Ahmed Shalby

Journal of Engineering Research

Water quality degradation is a major global concern and a significant threat to human health. In Egypt, extensive agricultural runoff enriched with fertilizers, pesticides, and herbicides endangers the aquatic ecosystems. Accordingly, a reliable water quality monitoring and assessment program is crucial for formulating a management strategy aimed at water resource protection. Indeed, water quality assessment implies a challenge in identifying sampling locations, frequencies and monitored parameters. This paper aims to report on the water quality state of some irrigation streams in the Dakahlia governorate, Egypt. A systematic monitoring program was implemented through three field campaigns conducted in November 2023, February …

New View Of Some Propositions On Hesitant Fuzzy Set And Its Application In Selecting The Best Person In Any Job, Manar Mohamed Omran Dr., Arafa A. Nasef A.Dr, Reham Abd El-Aziz Abo Khadra Dr., Mahmoud Arafa Nasef Dr.

Journal of Engineering Research

An essential part of uncertainty is played by the hesitant fuzzy set (HFS). So, it can be utilized when making decisions. The suggested use of HFS to choose the best candidate for any post is thoroughly discussed and introduces new HFS concepts

The Effect Of Hot Machining Of Difficult-To-Machine Materials On The Form Accuracy In The Turning Process, Ahmed Yehia Kamal, Samy F. M. Assal, Ahmed M. El-Kassas, Ahmed A. Hawam

Journal of Engineering Research

Form accuracy of machined parts is crucial to the interchangeability in production as well as the function of the part and its expected useful life. Numerous studies investigated the form accuracy in traditional machining operations but none of them considered this issue in hot machining. In this technique, a difficult-to-machine workpiece is preheated to soften its material and reduce the cutting force. In this paper, the form accuracy represented in roundness, tape, and straightness of hot turned AISI 304L parts are investigated. The results showed that the hot condition has a minimal effect on the form accuracy which confirms the …

Non-Orthogonal Multiple Access Empowered Physical Layer Security Systems: Review, Issues And Challenges, Aml Fawzy, Mahmoud Selim, Maha Elsabrouty, Sameh Napoleon, Mustafa M. Abd Elnaby

Journal of Engineering Research

As 5G networks advance, the demand for higher data rates, enhanced spectral efficiency, and increased connectivity intensify. Non-orthogonal multiple Access (NOMA) addresses these needs by allowing multiple users to share the same time and frequency resources, thus optimizing network resource utilization and significantly boosting system capacity and throughput. NOMA's influence extends beyond traditional communication scenarios, impacting various vertical industries that require extensive connectivity, such as the Internet of Things (IoT). This transformative approach is crucial for industrial and critical mission applications. Given the importance of safeguarding these communications from potential eavesdroppers, Physical Layer Security (PLS) emerges as a vital tool. …

Great Salt Lake Model Depletion, Katherine Wright

Spring Runoff Conference

When does water leasing make sense? Using New Information to Make Better Leases.

Lease, but only if it makes sense.

• Farmers have a legal right to use water on their farms for agriculture.
• Leasing might be a good economic decision for you, but not your neighbor.
• Leasing is voluntary, the purpose of this presentation is to explain the benefits of leasing and give you the information you need to decide if it is right for you. 

Utah Water Research Lab, David Tarboton

Spring Runoff Conference

The concept of a dedicated water research laboratory evolved over years, with significant contributions from Vaughn E. Hansen, Dean F. Peterson, and George D. Clyde. The UWRL represents the culmination of a long-held vision at USU to advance water research.

Legislative Updates Panel, Casey Snider, Brian Steed, Kelly Pehrson, Joel Ferry

Spring Runoff Conference

Legislative Updates Panel

Water Rights Update, Teresa Wilhelmsen

Spring Runoff Conference

State Engineer's Update:

2024-2025 Strategic Action Plan

2024 Updates by functional section:

• Adjudication
• Applications & Records
• Dam Safety & Stream Alterations
• Data Services
• Field Services
• Technical Services

How Do Collective Agreements Stack Up? Implications For Academic Freedom, Tim Ribaric, Rahul Kumar

Journal of Collective Bargaining in the Academy

Abstract Academic freedom, a cornerstone of higher education, is formally codified within the enforceable language of collective agreements (CAs) between universities and faculty unions in Canada. While the Canadian Association of University Teachers (CAUT) provides an exemplar framework for academic freedom clauses, institutional interpretations and implementations vary significantly. This study comprehensively analyzed CAs from 44 Canadian universities using computational text analysis methods, specifically Latent Dirichlet Allocation (LDA) and Term Frequency-Inverse Document Frequency (TF-IDF). The analysis revealed that approximately 27% of institutions closely align with the CAUT exemplar, while 57% incorporate additional limiting factors that qualify the exercise of academic freedom. …

Faculty Views About Their Covid-19 Layoffs From A Public University In The Us Midwest, Susan E. Ramlo

Journal of Collective Bargaining in the Academy

In July 2020, a public university in the US Midwest announced it would lay off 96 bargaining unit faculty based on a force majeure clause in the union contract. Most of the faculty held tenure and some were distinguished professors. The layoffs occurred with no faculty input and immediately following a major university reorganization. This study uses Q methodology [Q] to examine the Perceived Organizational Support [POS] of these laid off unionized faculty within an agency theory framework. Q allows us to reveal and describe the divergent views of the laid off faculty based upon analyses of their sorts of …

Northern Utah Gaging And Measurement Infrastructure Needs And Updates, Beth Neilson

Spring Runoff Conference

We can’t manage what we don’t MEASURE. We can’t manage what we don’t UNDERSTAND.

The Shorthorn: December 17, 1928

The Shorthorn Newspaper Collection: 1920s

No abstract provided.

The Shorthorn: September 18, 1928

The Shorthorn Newspaper Collection: 1920s

No abstract provided.

The Shorthorn: March 27, 1928

The Shorthorn Newspaper Collection: 1920s

No abstract provided.

Great Salt Lake: What’S Next?, Brian Steed

Spring Runoff Conference

Water security is key to living in the West.

Snowpack And Water Supply Outlook, Jordan Clayton

Spring Runoff Conference

>95% of the water we use in Northern Utah comes from snow. Therefore, it’s critically important to quantify how much water is stored in our snowpack.

Noma: How Science Fits Within Hinduism, Shaumika Pradhan

Undergraduate Research and Engagement Symposium

In modern day, science and religion have been pivoted against each other, especially under a Western—or Christian—lens. However, Christianity is not the only religion that exists. This Theology Project focuses on a nonwestern perspective by centering around Hinduism and how science can contradict or coincide with the other while comparing the science and religion debate to Christianity. I, as the researcher, use articles, journals, and books, as well as my own personal knowledge in Hinduism and science, to disentangle the complexities within each magisteria.

Stochastic Analysis And White Noise Calculus Of Nonlinear Wave Equations With Application To Laser Generation And Propagation, Sivaguru S. Sritharan, Saba Mudaliar

Journal of Stochastic Analysis

No abstract provided.

Western Australia’S Marine Heatwave Update - 27 March 2025, Department Of Primary Industries And Regional Development, Western Australia, Arani Chandrapavan

Marine Heatwave Notification Reports

No abstract provided.

Frozen-Core Analytical Gradients Within The Adiabatic Connection Random-Phase Approximation From An Extended Lagrangian, Jefferson E. Bates, Henk Eshuis

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

The implementation of the frozen-core option in combination with the analytic gradient of the random-phase approximation (RPA) is reported based on a density functional theory reference determinant using resolution-of-the-identity techniques and an extended Lagrangian. The frozen-core option reduces the dimensionality of the matrices required for the RPA analytic gradient, thereby yielding a reduction in computational cost. A frozen core also reduces the size of the numerical frequency grid required for accurate treatment of the correlation contributions using Curtis-Clenshaw quadratures, leading to an additional speedup. Optimized geometries for closed-shell, main-group, and transition metal compounds, as well as open-shell transition metal complexes, …

Seepage Evolution Patterns And Self-Sealing Characterization Of Mining-Induced Overburden Fractures In Ecologically Vulnerable Mining Areas, Li Jianwei, Sun Yanchao, Zhang Chuanjiu, Ta Xupeng, Cao Jian, Zhang Jian

Coal Geology & Exploration

Objective The ecologically vulnerable areas (EVAs) in West China have been significantly affected by coal mining. In these areas, aquifers overlying goaves have been damaged under mining disturbance, being prone to cause water resource loss and desertification. Hence, it is crucial to guide the self-sealing of fractures artificially to preserve and further restore the groundwater level.Methods This study investigated mining face 22108 in the Buertai coal mine in the Inner Mongolia Autonomous Region. Based on the physical simulation experiments using similar materials, numerical calculations, and theoretical analysis, this study delved into the seepage evolution patterns of fractures in the …

Thermodynamic Water Activity Explains The Unusual Electrochemical Stability Of Aqueous Deep Eutectic Solvents, Desiree Mae Prado, Aaron Niño Gonzaga, Clemens Burda

Faculty Scholarship

The presence of water in nonaqueous deep eutectic solvent (DES) electrolytes has been debated in recent years, with efforts ranging from its complete removal to willful addition. It was shown that controlled amounts of water can be beneficial, as it not only enhances the physicochemical properties of these electrolytes but also has no significant detrimental effects on their electrochemical stability. Despite these advantages, there is still limited understanding of how water interacts with DES systems at the molecular level. This study examines the water activity in ethylene glycol and glycerol, as well as their binary mixtures with choline chloride to …

Juggling Coursework, Student Teaching, And Personal Lives: Bgsu Pre-Service Teachers’ Experiences And Pre-Conceptions On Teacher Burnout, Iris Faria

Honors Projects

Teacher burnout is a hot topic in today's media, as teachers' responsibilities expand and retention rates in the education field falter. While this is a desperate issue, the specific topic of this study is pre-service teachers' experiences of and ideas about the three dimensions of burnout. According to the World Health Organization (WHO), these dimensions are: "feelings of energy depletion or exhaustion; increased mental distance from one’s job or feelings of negativism or cynicism related to one’s job; and reduced professional efficacy." Participants involved in this study completed a survey involving seven multiple-choice questions aligned with the dimensions of burnout …

Imu-Mechanized Discrete Error-State Kalman Filtering With Lie-Group Pose Representations, Daniel P. Koch

Theses and Dissertations

This dissertation investigates methodologies for consistent Kalman filtering with Lie-group based representations of the vehicle pose. Early results are centered around the relative navigation framework, which maintains filter observability and consistency by only tracking the state relative to the latest keyframe of an odometry system such as visual odometry or laser scan matching. A detailed derivation of a relative multiplicative extended Kalman filter, using a quaternion parameterization of the attitude state, is presented for application to multirotor vehicles. The remainder of the dissertation focuses on Kalman filtering using a Lie-group SE(3) pose representation, which improves filter consistency by correctly modeling …

Advanced Techniques In Symmetric Key Cryptanalysis, Debasmita Chakraborty

Doctoral Theses

Symmetric key cryptographic primitives are essential tools used extensively in daily digital interactions. These primitives are mainly designed to provide three key services: ensuring data confidentiality, maintaining data integrity, and verifying the authenticity of data sources. The primary types of symmetric key primitives that deliver these services include block ciphers, stream ciphers, hash functions, message authentication codes, and authenticated encryption with associated data. This thesis mainly explores the security analysis of hash functions, several block ciphers, and stream ciphers using some advanced cryptanalytic techniques. We begin by examining the collision security of a hash function, specifically under the assumption that …

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.

Geological Technological Innovations And Contributions In The Exploration And Development Of The Shenfu Coalfield, Fan Limin

Coal Geology & Exploration

Background The discovery and exploration of the Shenfu coalfield (i.e., a Jurassic coalfield in northern Shaanxi Province) represent the most significant achievement in China’s coal industry during the 6th Five-Year Plan of the country, marking the onset of the strategic westward shift of China’s coal industry. The complex discovery and exploration processes of the Shenfu coalfield have yielded valuable technological innovations. A summary of advances in the geological exploration and research of this coalfield will provide significant implications and references for the geologic work and green development of major coal-producing areas in West China. Advances First, research on the coal …

Mining-Induced Fault Slip: Assessment Model And Method For Determining Fault Instability Ranges, Zhao Hongbao, Zhang Bo, Zhang Chi, Ji Dongliang

Coal Geology & Exploration

Objective Faults are highly susceptible to activation and slip instability under the influence of mining. This might trigger many disasters such as mine earthquakes, posing serious threats to mine safety. Therefore, it is necessary to analyze the mechanical mechanisms behind mining-induced fault activation and determine the ranges of mutual feedback between mining and fault activation in advance. Methods With the 213B mining face of the Xinzhi coal mine as the engineering background, this study analyzed the fault activation process induced by mining and created an elastic mechanical model for the impacts of mining on the surrounding rocks of faults. Accordingly, …

Geological Characteristics And Key Technologies For Exploration And Development Of The Yanchuannan Coalbed Methane Field, Ordos Basin, He Xipeng, Xiao Cui, Gao Yuqiao, Li Xin, Guo Tao, Cai Xiao

Coal Geology & Exploration

Objective China boasts abundant coalbed methane (CBM) resources, which serve as a crucial replacement for the reserve growth and production addition of natural gas resources. In recent years, CBM exploration and production have gradually expanded into deep, thin coal seams, which, however, are characterized by strong heterogeneity, ultra-low permeability, high in situ stress, and complex enrichment patterns. Therefore, the exploration and exploitation of deep, thin coal seams face challenges such as inadequate geological theories, poor adaptability of key technologies, and low investment returns, which hinder large-scale commercial CBM production. Methods Focusing on the exploration and exploitation practice of middle-deep, thin …