Engineering Commons^™

Us Blindness To Russian, Chinese Cultural Motives Risks Nuclear Escalation And Ill-Fit Response, Ryan C. Bushman

Space and Defense

Student Contribution.

This paper was authored prior to the 2022 Russian invasion of Ukraine and the publication of the 2022 Nuclear Posture Review.

The United States has taken numerous miscalculated steps with respect to foreign and nuclear policy based on an incomplete understanding of the motives of both China and Russia. This is, in part, due to a failure to acknowledge these nations' strategic culture - an enduring system of values that influence a nation's use of military force. As the US is about to put forth its 2022 Nuclear Posture Review (NPR), it is critical that future responses to …

Keynote Address: Dr. Kori Schake, Kori Schake

Space and Defense

2022 United Sates Strategic Command Academic Alliance Conference and Workshop, Mark 30-April 1, 2022, Conducted via Zoom

Addressing The American Approach To Emerging Technologies: Utilizing The Ai Arms Race To Highlight The Need To Develop Public-Private Partnerships In C4isr And 5g, Hugh Harsono, Nicholas Ondovcsik

Space and Defense

he world of emerging technologies has changed countries' access and placement to these digital enablement tools of the future, with blockchain, decentralization, and a myriad of other compounding technologies accelerating the pace of development and growth combining the physical and the digital world. Historically, America's Silicon Valley has led the world's development of new technologies, particularly during the latter part of the digital revolution. In contrast, China focused on enhancing its manufacturing capabilities, becoming a world leader by capitalizing on the ever-connected world and leveraging its economic prowess. These roles became reversed in the early-2000s,1 when China first surpassed the …

Technology: The Air And Space Force's Barrier To Innovation, William F. Cosgrove

Space and Defense

The Department of Defense is a rank-and-file institution that values orders adherence and a zero-error mentality, which has led commanders to be risk averse. This is exemplified in the cybersecurity realm, with controls attempting to protect all information, including uncontrolled unclassified information. Efforts that attempt to employ a new or different type of information technology are made very difficult by a number of existing policies. Additionally, customer surveys, service initiatives, and open user complaints have revealed dissatisfaction with Department of the Air Force (DAF) IT services. The millennial and post-millennial generations are the most technologically adept, yet the majority of …

A Great Nuclear Rejuvenation: What China Can Do With An Expanded Nuclear Arsenal, Grant Van Robays, Chloe Reynolds, Will Jackson, Tom Hammerle

Space and Defense

China's hypersonic glide vehicle test in October 2021 prompted widespread concern in the general public and within the defense intelligence community. General Mark A. Milley, Chairman of the Joint Chiefs of Staff, said the test was "very close" to a Sputnik moment.1 More than mere power projection by the People's Republic of China (PRC) and Chinese Communist Party ( CCP), the hypersonic test is an exemplification of rapid advancements in Chinese strategic nuclear forces writ large. Improved nuclear weapons capabilities will offer Beijing greater leverage in regional and international disputes with an increased capacity to coerce and compel adversaries into …

Editor's Note, Michelle Black

Space and Defense

No abstract provided.

Table Of Contents, Space And Defense

Space and Defense

Table of contents for Volume 14 issue 1 of Space and Defense

Front Matter, Space And Defense

Space and Defense

No abstract provided.

Challenging The Notion Of Role Models In Engineering Outreach Programs For Youth, Kelli M. Paul, Karen Miel, Merredith D. Portsmore, Adam Maltese

Journal of Pre-College Engineering Education Research (J-PEER)

Engineering outreach programs often portray outreach educators as role models for youth. It is widely believed that introducing youth, especially girls, to potential engineering role models will broaden participation in engineering majors and careers. Based on interviews with and surveys of fourth- and fifth-grade girls participating in an engineering outreach program, we question whether youth are looking for career role models, and we challenge the assumption that youth will take up an adult as a role model simply because the adult is presented as such. We question what role these ‘‘models’’ play in the minds and lives of youth and …

Prototype Design Of Securing Internet Of Things In Smart Homes, Stephen Mujeye

Cybersecurity Graduate Research Symposium

No abstract provided.

Does Drought Stress Eliminate The Benefit Of Elevated Co2,/Sub> On Soybean Yield? Using An Improved Model To Link Crop And Soil Water Relations, Wenguang Sun, David Fleisher, Dennis Timlin, Chittaranjan Ray, Zhuangji Wang, Sahila Beegum, Vangimalla Reddy

Daugherty Water for Food Global Institute: Faculty Publications

Crop simulation models are indispensable tools that facilitate studies to assess climate impacts and adaptation responses, but have not been adequately tested in terms of accurately predicting crop growth and water stress responses to high carbon dioxide concentrations [CO₂]. The soybean model, GLYCIM, previously modified with a coupled leaf-level gas exchange – energy balance model, was integrated with a two-dimensional convectivediffusive root growth module which linked soil and leaf water potentials with the regulation of stomatal conductance. We evaluated the accuracy of this modified GLYCIM using experimental data from a Free-Air CO₂ Enrichment (FACE) site, SoyFACE, and …

Experimental Evaluation Of Airflow Guiding Components For Wind-Driven Single-Sided Natural Ventilation: A Comparative Study In A Test Chamber, Nima Najafi Ziarani, Malcolm J. Cook, Paul D. O’Sullivan

Publications

Single-sided ventilation is a frequently employed ventilation strategy in contemporary structures, yet its effectiveness is often mediocre, underscoring the need for solutions to enhance its performance. To evaluate the effect of louvres and guide vanes on the effective ventilation rate, 21 different louvre configurations and four guide vane designs were compared with a plain opening for single-sided ventilation in a full-scale experimental test chamber under three different magnitudes of local wind velocity. Ventilation rates were measured using the tracer gas decay method with 12 NDIR CO2 sensors. The findings, obtained under specific test conditions, indicate that deeper openings result in …

Leveraging Vr/Ar/Mr/Xr Technologies To Improve Cybersecurity Education, Training, And Operations, Paul Wagner, Dalal Alharthi

Journal of Cybersecurity Education, Research and Practice

The United States faces persistent threats conducting malicious cyber campaigns that threaten critical infrastructure, companies and their intellectual property, and the privacy of its citizens. Additionally, there are millions of unfilled cybersecurity positions, and the cybersecurity skills gap continues to widen. Most companies believe that this problem has not improved and nearly 44% believe it has gotten worse over the past 10 years. Threat actors are continuing to evolve their tactics, techniques, and procedures for conducting attacks on public and private targets. Education institutions and companies must adopt emerging technologies to develop security professionals and to increase cybersecurity awareness holistically. …

Influence Of Technological Parameters On Chip Formation And Chip Control In Precision Hard Turning Of Ti-6al-4v, Elshaimaa Abdelnasser, Samar El-Sanabary, Ahmed Nassef, Azza Barakat, Ahmed Elkaseer

Mechanical Engineering

This article presents the results of an experimental investigation into the effect of process parameters in the precision hard turning of Ti-6Al-4V on chip morphology at both macro and micro levels. It also reports on the control of chip generation to improve chip evacuation and breakability at the macro level by varying the process parameters, namely, feed rate, cutting speed and depth of cut during turning tests. A scanning electron microscope (SEM) was used to examine the chips produced for a better understanding of chip curling mechanisms at the micro level. Surface roughness of the machined specimens was measured to …

Invariant Set-Based Dc Microgrid Decentralized Actuator Fault-Tolerant Control, Ehab Bayoumi

Mechanical Engineering

Faults and system failure components are primarily two causes of unstable or deteriorating control performance of power system. In this study, we present a novel approach to the decentralized restora tion of large DC microgrids using fault-tolerant control (FTC). The microgrid achieves decentralization by partitioning into several smaller grids. Each independent grid views the actions of the other grids as an external disturbance. The malfunction of the controller is represented in the input matrix as a norm bounded uncertainty. The disturbance impact is diminished due to the proposed invariant-set approach. The proposed control can address simultaneous failures in actuators with …

The Aging Workforce: How It Relates To Incident Rates Within A Distribution Warehouse And A Chemical Manufacturing Building, Elisabeth V. Jones

USF Tampa Graduate Theses and Dissertations

Over the past 20 years or so, the average age of the global population has slowly increased. This is due to low birth rates as well as increased life expectancy. With this global population aging, there has also been a shift in the global labor market causing a trend termed the “aging workforce.” However, with the aging workforce comes a new set of issues for the health and safety professional because they create new hazards. This is due mostly because of the body undergoing physical, psychological, and cognitive decline as someone ages which causes decreased capabilities. Thus, the purpose of …

Directional Microwave Emission From Femtosecond-Laser Illuminated Linear Arrays Of Superconducting Rings, Thomas J. Bullard, Kyle Frische, Charlie Ebbing, Stephen J. Hageman, John Morrison, John Bulmer, Enam A. Chowdury, Michael L. Dexter, Timothy J. Haugan, Anil K. Patnaik

Faculty Publications

We examine the electromagnetic emission from two photo-illuminated linear arrays composed of inductively charged superconducting ring elements. The arrays are illuminated by an ultrafast infrared laser that triggers microwave broadband emission detected in the 1–26 GHz range. Based on constructive interference from the arrays a narrowing of the forward radiation lobe is observed with increasing element count and frequency demonstrating directed GHz emission. Results suggest that higher frequencies and a larger number of elements are achievable leading to a unique pulsed array emitter concept that can span frequencies from the microwave to the terahertz (THz) regime.

The Intersection Of Ai And Employment, Sachit Kamat

River Cities Industrial and Organizational Psychology Conference

Artificial Intelligence (AI) is rapidly transforming every industry. This session will focus on the practical applications of AI within employment hiring and succession strategies, enabling organizations to automate processes, improve efficiency, and uncover data-driven insights for enhanced decision making. We will discuss advancements using AI in the recruitment process, including the use of machine learning algorithms to screen resumes and identify successful candidates. The talk will highlight the regulatory environment and the intersection of the IO and AI fields within this rapidly evolving landscape. Additionally, the presentation will explore where AI is being used to improve organizational retention and performance. …

Effect Of Priming And Explosive Initiation Location On Pull In Hard Rock Underground Mine, K.K. Rao, B.S. Choudhary

Journal of Sustainable Mining

In the development of hard rock mines, achieving maximum pull after blasting plays a crucial role. Various machines have been developed for rock cutting, but still, due to flexibility and cost-effectiveness, drilling and blasting are preferred. To enhance the effectiveness of this method, several techniques have been developed, including the use of appropriate stemming material, double-primer placement, selecting optimal initiation locations, improving blast designs, and exploring stress superposition techniques through electronic detonators. This research paper focuses on investigating the effect of the priming and explosive initiation location on pull through an experimental approach. The study specifically examines the influence of …

Similarity Measure Of Plithogenic Cubic Vague Sets: Examples And Possibilities, S. Anitha, A. Francina Shalini

Neutrosophic Systems with Applications

The crisp, fuzzy, intuitionistic fuzzy, and neutrosophic sets are the extension of the plithogenic set, in which elements are characterized by the number of attributes and each attribute can assume many values. To achieve more accuracy and precise exclusion, a contradiction or dissimilarity degree is specified between each attribute and the values of the dominating attribute. A plithogenic cubic vague set is a combination of a plithogenic cubic set and a vague set. The key tool for resolving problems with pattern recognition and clustering analysis is the similarity measure. In this research, we characterize and investigate the similarities between two …

How Education Sats Started & A Youth Amsat-Na Program Proposal, Robert J. Twiggs, Nick Pugh

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "How Education Sats Started & A Youth Amsat-NA Program Proposal" from October 21, 2023.

Tellurium Corrosion Of Type 304/304l Stainless Steel, Iron, Chromium, And Nickel In High-Temperature Liquid Sodium, Yi Xie

Purdue University Libraries Open Access Publishing Fund

Investigating tellurium (Te) corrosion on structural materials is crucial for sodium-cooled fast reactors (SFRs) due to radionuclide presence and knowledge gaps. In this study, Type 304/304L stainless steel (SS304), chromium (Cr), iron (Fe), and nickel (Ni) samples were immersed in low-oxygen environments with Te in liquid sodium at 773 K for 30 days. At 10 ppm oxygen, SS304 showed multiple oxide layers, including a compact NaCrO2 interlayer and porous Na-Fe-Ni-O outer layers. Tellurium penetrated through the porous layers but was hindered by the NaCrO2 interlayer. At 0.01 ppm oxygen, Cr had no oxide layer, while Fe and Ni had unstable …

Development Of Surrogate-Optimization Models For A Novel Transcritical Power Cycle Integrated With A Small Modular Reactor, Yili Zhang, Jacob Bryan, Geordie Richards, Hailei Wang

Mechanical and Aerospace Engineering Student Publications and Presentations

In recent years, various types of surrogate optimization models have been proposed to reduce the computational time and to improve the emulation accuracy. In this study, by leveraging an ANN surrogate model developed earlier, a comprehensive and efficient optimization algorithm is conceived for the global optimal design of an integrated regenerative methanol transcritical cycle. It combines a unique converging/diverging classifier model into the surrogate model to form a surrogate-based model, which significantly improves the prediction accuracy of the objective function. Six binary classifiers are explored and the multi-layer feed-forward (MLF) neural network classifier is selected. In addition, within the five …

Similarity Measure Of Plithogenic Cubic Vague Sets: Examples And Possibilities, S. Anitha, A. Francina Shalini

Neutrosophic Systems with Applications

The crisp, fuzzy, intuitionistic fuzzy, and neutrosophic sets are the extension of the plithogenic set, in which elements are characterized by the number of attributes and each attribute can assume many values. To achieve more accuracy and precise exclusion, a contradiction or dissimilarity degree is specified between each attribute and the values of the dominating attribute. A plithogenic cubic vague set is a combination of a plithogenic cubic set and a vague set. The key tool for resolving problems with pattern recognition and clustering analysis is the similarity measure. In this research, we characterize and investigate the similarities between two …

Revolutionary Artificial Intelligence Architectural Design Solutions; Is It An Opportunity Or A Threat?, Mahmoud Desouki, T. A. El-Haddad, Bahaa El-Boshey

Mansoura Engineering Journal

Architectural design is uniquely complex, time-consuming work, so AI promises major benefits but also risks. Architectural design software programs have recently made an impressive development, especially those that use artificial intelligence. AI could transform design and construction with tools enabling generative design, parametric modeling, simulation, and optimization. However, AI’s impact remains unclear. Adoption depends on architects leveraging AI to augment judgment rather than replace it. Factors limiting AI include limited education/experience, threats to creative skills architects value, and unreliable AI design tools. While many see AI as an opportunity, not an endangerment, optimism and uncertainty prevail. AI may ultimately enhance …

The Impact Of Enterprise Resource Planning (Erp) Implementation On Performance Of Firms: A Case To Support Production Process Improvement., Kareem A. El-Baz, Tawfik T. El-Midany, Magdy S. Ghattas, Mona A. Aboueleaz

Mansoura Engineering Journal

Competitive globalization and automated process management through a functional information platform that supports technologies such as enterprise resource planning (ERP) are critical to improving the performance of any business. Research studies show that a large number of (ERP) projects fail during implementation. Other studies have shown that the effectiveness of ERP implementation in improving production processes is modest or low, even for well-designed systems. This study takes an in-depth look at the critical success factors of ERP implementation that impact business success, and conducts a case study to analyze the results obtained and assess their impact on performance.

Ehf-Fndm: An Efficient Hybrid Features Fake News Detection Methodology On Social Media, Haidy Samir Fahim, Asmaa Mohamed Al-Saied, Ahmed Shaban Samra, Abeer Twakol Khalil

Mansoura Engineering Journal

People are increasingly using social media to consume and share news. The inherent benefits of social media over traditional news media include its low cost and ease of access. In addition, publishing a news article requires less content censorship on social media. The rapid spread of "fake news" on social media, that is, news that contains intentionally false information, has a significant negative impact on society. For instance, false information about the coronavirus disease "2019" has spread around the world like a virus. Therefore, developing effective methods to detect fake news early has great importance. In this paper, the (Efficient …

Workshop On Data For Ai In Network Systems - Event Summary, Kuang-Ching Wang, Ron Hutchins, Anita Nikolich

Workshop on Data for AI in Network Systems

No abstract provided.

Data For Ai In Network Systems Workshop Report, Kuang-Ching Wang, Ron Hutchins, Anita Nikolich

Workshop on Data for AI in Network Systems

No abstract provided.

A 3d-Printed Blood-Brain Barrier Model With Tunable Topology And Cell-Matrix Interactions., Louis S Paone, Mohammed Mehdi Benmassaoud, Aidan Curran, Sebastián L Vega, Peter A Galie

Henry M. Rowan College of Engineering Departmental Research

Recent developments in digital light processing (DLP) can advance the structural and biochemical complexity of perfusable in vitro models of the blood–brain barrier. Here, we describe a strategy to functionalize complex, DLP-printed vascular models with multiple peptide motifs in a single hydrogel. Different peptides can be clicked into the walls of distinct topologies, or the peptide motifs lining channel walls can differ from those in the bulk of the hydrogel. The flexibility of this approach is used to both characterize the effects of various bioactive domains on endothelial coverage and tight junction formation, in addition to facilitating astrocyte attachment in …