Digital Commons Network^™

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 …

User Experience Personas Fall 2023, Simon C. Marcy

Library Assessment and Statistics

UX personas are fictional representations of key user segments, typically based on research and data, used to guide design decisions by humanizing and providing insights into the needs, goals, and behaviors of target users.

The George-Anne Inkwell Edition, Georgia Southern University

The Inkwell

No abstract provided.

First-Order Phase Transitions In Yang-Mills Theories And The Density Of State Method, Biagio Lucini, David Mason, Maurizio Piai, Enrico Rinaldi, Davide Vadacchino

School of Engineering, Computing and Mathematics

When studied at finite temperature, Yang-Mills theories in 3+1 dimensions display the presence of confinement/deconfinement phase transitions, which are known to be of first order - the SU(2) gauge theory being the exception. Theoretical as well as phenomenological considerations indicate that it is essential to establish a precise characterization of these physical systems in proximity of such phase transitions. We present and test a new method to study the critical region of parameter space in non-Abelian quantum field theories on the lattice, based upon the logarithmic linear relaxation (LLR) algorithm. We apply this method to the SU(3) Yang-Mills lattice gauge …

Orcid Id: What It Is And How It Can Help You, Brittney E. Sandler

Open October

No abstract provided.

2.8: Single Node Adjustment Method, Donald V. Chase

Textbook: Methods for Solving Hydraulic Networks

Chapter in Methods for Solving Hydraulic Networks

The Echo: October 23, 2023, Taylor University

2023-2024 (Volume 111)

No abstract provided.

Use Of Silica Dust And Lunar Simulants For Assessing Lunar Regolith Exposure, Layzamarie Irizarry-Colon

USF Tampa Graduate Theses and Dissertations

The utilization of the lunar regolith holds immense potential for future space exploration, but the potential health risks associated with lunar regolith are a significant concern. This literature review seeks to critically assess the use of silica and lunar simulants standards and permissible exposure limits (PELs) to evaluate the adverse health effects of lunar regolith. The literature review covers an extensive analysis of existing research, health risks, toxicological properties, and physical and chemical composition associated with silica, lunar simulants, and lunar regolith by using three main sources: regulations, scholarly articles, and Kennedy Space Center (KSC) discussion. This comprehensive analysis forms …

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 …

Are We There Yet?, Marion S. Freistadt

LSU Master's Theses

To solve the Climate Crisis, a global Energy Transition is required. The primary contemporary tool for tackling these two massive problems is modeling, both biophysical climate models and IAMS (Integrated Assessment Models) which combine socioeconomic and technological progress with Climate Change. However, the proliferation and complexity of modeling systems make it difficult for most people to contribute substantively to solutions. In particular, stakeholders, policymakers, nonspecialists and activists require sufficient understanding of modeling to impact outcomes.

In this thesis, after summarizing the Climate Crisis and potential Energy Transition solutions, I review current modeling approaches. Models can be considered in terms of …

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. …

Ai And National Security: The United States Risks Losing Its Competitive Edge, Royce Morris

Liberty University Journal of Statesmanship & Public Policy

Recent developments in artificial intelligence (AI) have caused concern over the ethical implications of large-scale AI implementation. As a result, leading technologists and computer scientists have advocated an incremental rather than comprehensive approach to AI development and implementation to allow ethical and structural guidelines to provide a public safety net. However, such an approach does not account for the geopolitical and national security implications of lagging behind competitors like China, who have publicly stated goals of reaching AI supremacy within the next ten years. This article presents a national security analysis of the risks to American national security by allowing …

The Rider (2023-10-23), Natalie Lapsley

The Rider Archives

Vol.9 No.9

Addressing Equity Asymmetries In General Chemistry Outcomes Through An Asset-Based Supplemental Course., Tamari Kakhoidze, Jessica M Karch

Faculty, Staff and Students Publications

Undergraduate first-semester general chemistry (GC1) functions as a gatekeeper to STEM degrees, asymmetrically impacting students who are nonwhite, from lower socioeconomic groups, non-native English speakers, two-year college transfers, and first-generation in college. Nationally, just under 30% of students earn grades of D, F, or withdraw (termed DFW) in GC1; however, DFW rates are much higher for subgroups underrepresented in STEM occupations. Socioeconomic inequalities tend to increase over an individual's lifetime due to the magnification of cumulative disadvantage. Because undergraduate degrees correlate with higher employment and STEM occupations correlate with higher earnings, GC1 represents a critical path point where disparities can …

Semi-Structured Interview Transcripts Of Fishing Gear Recyclers, Amanda Burton

Faculty of Science and Engineering Datasets

The study was conducted by Amanda Burton for a thesis entitled 'Towards a Circular Economy for Fishing Gear', submitted in partial fulfilment of the requirements for the degree of MSc Advanced Engineering Design, University of Plymouth, Faculty of Science and Engineering, Sept 2021. The study was in collaboration with the Interreg INdIGO project 2019-2023. Dataset Description: Transcripts of four interviews conducted with individuals engaged in recycling of End of Life and recovered Abandoned, Lost and Discarded fishing gear. Citation: Burton, A. (2023). Semi-structured interview transcripts of fishing gear recyclers. PEARL Research Repository. https://doi.org/10.24382/k17a-mh85.

On Flow'ry Beds Of Ease, Jacob Owens

Life in Letters: A Typographic Poster Exhibition Featuring Paul Laurence Dunbar

Dimensions: 30 inches wide, 36 inches tall
Inkjet on matte paper, printed on both sides

Artist's narrative: In Letter 10, Paul Laurence Dunbar's heartfelt words to his friend J. N. Matthews unveil a profound narrative of gratitude and faith. As a Black man navigating adversity, Dunbar expressed his deep indebtedness to white colleagues who aided in his success. The gentle color palette—featuring dark blues, purples, and soft whites—exudes an antique ambiance, transporting viewers back to Dunbar's era. This color scheme evokes the essence of the time when Dunbar mastered his craft in the cozy confines of his mother's home, where …

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 …

Big Oil Liability In Canada: Lessons From The Us And The Netherlands, David W-L Wu

Dalhousie Law Journal

The number of nuisance and negligence tort claims in the US against “Big Oil” companies have grown significantly in the last five years. The Netherlands case of Milieudefensie et al v Royal Dutch Shell represents the first major success of such a claim internationally. While the US cases and Milieudefensie demonstrate starkly different approaches as to how to seek accountability from Big Oil for climate change harms, the increasing judicial engagement on these issues may mean the time is right for similar lawsuits in Canada. Three Canadian common law causes of action are examined: nuisance, negligence, and unjust enrichment. Defences …

Permanent Injunctions In Defamation Actions, Hilary Young

Dalhousie Law Journal

Permanent injunctions prohibiting defamatory speech are increasingly sought and ordered following a finding of liability. This may seem unproblematic since a court will have found the particular speech to be unlawful—defamatory and likely false. However, there are good reasons to be cautious in permanently enjoining defamatory speech. This article shows that courts have recognized a test for permanent injunctions in defamation cases based on a misinterpretation of the case law—a test which is inconsistent with first principles of equitable relief. It then proposes a number of guidelines and principles for permanent injunctive relief in defamation actions. Most proposals relate to …

Developing Research Culture Among Staff Under Conditions Of Organizational Change, Mariia Perelygina, Denise O'Leary

Conference papers

This paper focuses on encouraging the growth of a research culture within a school of hospitality and tourism in one third-level institution in Ireland. The aim of the initiative is to increase engagement of staff members in impactful research, leading to benefits for individual staff members and a greater research profile for the school. Taking an action research approach, a plan of initiatives was designed and implemented to develop research culture. The paper examines the phenomenon of changing the organizational culture at the department level in a higher education institution undergoing a large amount of organisational change. The initiative is …

Active-Illumination Extension To The Priest And Meier Pbrdf, Mark F. Spencer, Milo W. Hyde Iv, Santasri R. Bose-Pillai, Michael A. Marciniak

Faculty Publications

This paper develops a 3D vector solution for the scattering of partially coherent laser-beam illumination from statistically rough surfaces. Such a solution enables a rigorous comparison to the well-known Priest and Meier polarimetric bidirectional reflectance distribution function (pBRDF) [Opt Eng 41(5),988 (2002).]. Overall, the comparison shows excellent agreement for the normalized spectral density and the degree of polarization. Based on this agreement, the 3D vector solution also enables an extension to the Priest and Meier pBRDF that accounts for the effects of active illumination. In particular, the 3D vector solution enables the development of a closed-form expression for the spectral …

Startup Failure, Elizabeth Pollman

Duke Law Journal

Venture-backed startups famously aim for a successful “exit” by going public or selling to another company through an acquisition deal and achieving financial return for all equity holders. A different path, however, is vastly more likely to occur—failure. Although high-risk innovative ventures fail at exceedingly high rates, no scholarly account systematically explains what happens to these startups at the end of their life cycle.

This Article provides a theory of startup failure: how law and culture have shaped a system for dealing with the large number of startups that cannot reach an exit that will produce a financial return for …

Global Health Interventions: The Military, The Magic Bullet, The Deterministic Model-And Intervention Otherwise, Emily Yates-Doerr, Lauren Carruth, Gideon Lasco, Rosario García-Meza

Development Studies Faculty Publications

"Intervention" is central to global health, but the significance and effects of how intervention is practiced are often taken for granted. This review takes interventions into health and medicine as subjects for ethnographic inquiry. We highlight three lines of anthropological contributions: studies of global health interventions that serve imperial and military objectives, studies of "magic bullet" interventions arising from laboratory science, and studies of interventions based on deterministic modeling techniques. We then outline examples of "intervention otherwise," in which people build relations of solidarity and care through global health programming, design interventions to be interactive and adaptable, and use data …

Dual Targeted Extracellular Vesicles Regulate Oncogenic Genes In Advanced Pancreatic Cancer, Chi-Ling Chiang, Yifan Ma, Ya-Chin Hou, Junjie Pan, Sin-Yu Chen, Zhi-Xuan Zhang, Xinyu Wang, Jingjing Zhang, Hong Li, Lili Sun, Shannon Fallen, Inyoul Lee, Xing-Yu Chen, Yeh-Shiu Chu, Chi Zhang, Tai-Shan Cheng, Wen Jiang, Betty Y S Kim, Eduardo Reategui, Robert Lee, Yuan Yuan, Hsiao-Chun Liu, Kai Wang, Michael Hsiao, Chi-Ying F Huang, Yan-Shen Shan, Andrew S Lee, L James Lee

Faculty, Staff and Student Publications

Pancreatic ductal adenocarcinoma (PDAC) tumours carry multiple gene mutations and respond poorly to treatments. There is currently an unmet need for drug carriers that can deliver multiple gene cargoes to target high solid tumour burden like PDAC. Here, we report a dual targeted extracellular vesicle (dtEV) carrying high loads of therapeutic RNA that effectively suppresses large PDAC tumours in mice. The EV surface contains a CD64 protein that has a tissue targeting peptide and a humanized monoclonal antibody. Cells sequentially transfected with plasmid DNAs encoding for the RNA and protein of interest by Transwell®-based asymmetric cell electroporation release abundant targeted …

Hybrid Learning: An Introduction To Keeping Pace With Educational Development, Hanadi Alrashdan, Hadi Rashed Al Ajmi, Najwa Abdel Hamid Darawsheh, Abdulla Sultan Bun Hareb Almheiri, Ibrahim Abdelrahman Eisa Aldarmaki, Mohamad Noor Al-Jedaiah, Mahfouda Rahid Al Mushaiqri, Nasir Albalawee

Information Sciences Letters

In light of the growth of necessary technological tools, hybrid education has become one of the necessities of the digital age, the study aimed to consider the method that can be used to provide high-quality hybrid education, the descriptive survey method was used, the study sample consisted of (850) male and female teachers, the questionnaire was used as a tool for the study, the results showed that the evaluation of all parties involved in hybrid education is modest, and according to the results, the results showed that higher education will be facilitated through the constructive contributions made by the parties …

Single-Source Multi-Period Problem Model With Active Constraints-Based Approach Algorithm, A. S. Situmorang, H. Mawengkang, T. Tulus, O. S. Sitompul

Information Sciences Letters

In this paper, we introduce the multi-period single sourcing problem as an assignment problem. The multi- period single-sourcing problem in this research is seen as a problem of finding assignments, from time to time to obtain the minimum possible total transportation and inventory costs for distributing goods to customers. The case considered in this problem is the case of placing inventory items that are distributed to customers online, so this case is seen as a non-polynomial or NP hard problem that requires a solution algorithm, and the algorithm we offer is a direct search algorithm to solve the problem. multi …

Appropriate And Optimal Classifier For Beef Quality Discrimination By A Low-Cost Optical Apparatus, Said E. Abdallah, Wael M. Elmessery, Waleed Z. Hassan, Nora S. Al-Sattary, Amr A. Abohany, Ahmed Elashry

Information Sciences Letters

In this paper, we present an optimal classifier for beef quality discrimination by a low-cost optical apparatus. Detecting beef spoilage in beef factories is a sophisticated process because beef spoilage is a mixture of physical and chemical changes. A low-cost Light-Dependent Resistor (LDR), and a light source were used to collect reflection spectra during the analysis of beef. The LabVIEW platform was programmed to acquire the obtained data from the microcontroller (Arduino) to predict beef quality. For the beef quality discrimination process, un-supervising machine learning called Principal Components Analysis (PCA) was used, and the score plot percentage was of the …

Transformation Of The Sustainability Concept In The Socioeconomic System And Labor Market, Nadezhda K. Savelyeva, Victoria A. Saidakova, Oksana E. Pirogova, Sergey E. Barykin, Olga Kalinina, Nikita S. Lukashevich

Information Sciences Letters

The study aims to test the hypothesis and evaluate the social security of the Russian Federations subjects, highlighting the importance of identifying and addressing critical challenges in the social domain. The authors employed N.V. Kocheryagins methodology and used comparative analysis, synthesis, standardization, integral method, and cause-and-effect relationships analysis as the main scientific methods. The study encompasses all subjects of the Russian Federation from 2016 to 2022. The result of the study is the analysis of directions for achieving the set goals in post-pandemic conditions. Applying the assessment methodology, the researchers identified the regions social security level, social sphere risk zones, …

Degree Of The Requirements For Improving Human Capital Management In Arab Universities As A Gateway To Achieving Sustainable Development, Amjad M. Daradkah, Ashraf M. A. Mahmoud, Maha I. Al-Momani, Areen A. Al-Nemrat, Hazem A. Badarneh, Khaled M. Hamadin

Information Sciences Letters

The paper identifies the degree of requirements for improving human capital management in Arab universities as a gateway to achieve sustainable development from the perspective of faculty members according to gender, faculty, supervising authority, academic rank, and number of years of experience. The descriptive approach is used to achieve the research objectives. The research sample consists of (526) faculty members randomly selected. The questionnaire is used as a research instrument. The results indicate that the research sample’s approval of the requirements for improving human capital management in Arab universities as a gateway to achieving sustainable development is high with a …

Attitudes Of Teachers Towards Blended Learning And Their Training Needs, Nusaiba Ali Almousa, Fawwaz Shhadeh, Khalil A. Fayyoumi, Suad A. Alwaely

Information Sciences Letters

This study aimed to showcase the attitudes of upper basic stage teachers towards blended learning and their training needs in Jordan. The study employed a descriptive correlational methodology and formulated two instruments, confirming their validity and reliability. Data was collected from a sample of (119) educators, comprising both male and female teachers, chosen through random selection. The study’s results showed that the attitudes of teachers towards blended learning were medium, with a total arithmetic mean of (3.60), and the degree of training needs to employ blended learning in teaching was high, with a total arithmetic mean of (3.86). The study …