Digital Commons Network^™

Role Of Ergonomics In The Selection Of Stemming Plugs For Surface Mining Operations, Atta Ur Rehman, Muhammad Zaka Emad, Muhammad Usman Khan

Mining Engineering Faculty Research & Creative Works

Stemming plugs are one of the widely used accessories in surface mining operations. Stemming plugs assist conventional stemming material in gas retention and help in better fragmentation and explosive utilization. Effective use of the stemming plugs results in economic benefits and enhance the efficacy of the project. Economic and productive viability of stemming plugs have been conducted in depth by different researchers. Addition of stemming plugs to a new system requires ergonomic challenges for operators conducting drilling and blasting operation. Induction of a newer product in already established system is subject to overall positive feedback. This work investigates ergonomics of …

Impact Of Considering And Neglecting States On Descent-To-Landing Navigation, Kyle J. Demars, Kari C. Ward

Mechanical and Aerospace Engineering Faculty Research & Creative Works

This paper develops a novel square-root formulation of the consider/neglect Kalman filter for navigation applications. The proposed filter partitions system parameters into three distinct categories: those to be estimated by the filter, those whose contribution to the system can be considered without explicitly estimating them, and those with sufficiently low effect on the system such that their contribution can be neglected altogether. Discussion on appropriate selection of consider and neglect parameters is provided with specific attention given to descent-to-landing navigation. Monte Carlo simulations and analysis are performed to assess the performance of the square-root consider/neglect filter.

Robustness Metric For Robust Design Optimization Under Time-And Space-Dependent Uncertainty Through Metamodeling, Xinpeng Wei, Xiaoping Du

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Product performance varies with respect to time and space in many engineering applications. This paper discusses how to measure and evaluate the robustness of a product or component when its quality characteristics (QCs) are functions of random variables, random fields, temporal variables, and spatial variables. At first, the existing time-dependent robustness metric is extended to the present time-and space-dependent problem. The robustness metric is derived using the extreme value of the quality characteristics with respect to temporal and spatial variables for the nominal-the-better type quality characteristics. Then, a metamodel-based numerical procedure is developed to evaluate the new robustness metric. The …

Direct Numerical Simulation Of Turbulent Pressure Fluctuations Over A Cone At Mach 8, Junji Huang, Lian Duan, Katya M. Casper, Ross M. Wagnild, Neal P. Bitter

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Direct numerical simulations (DNS) were conducted to characterize the pressure fluctuations under the turbulent portion of the boundary layer over a sharp 7◦ half-angle cone at a nominal freestream Mach number of 8 and a unit Reynolds number of Reunit = 13.4 x 106/m. The axisymmetric cone geometry and the flow conditions of the DNS matched those measured in the Sandia Hypersonic Wind Tunnel at Mach 8 (Sandia HWT-8). The DNS-predicted wall pressure statistics, including the root-mean-square (r.m.s.) fluctuations and the power spectral density (PSD), were compared with those measured in the Sandia HWT-8. A good comparison between the DNS …

Simulation And Modeling Of Cold-Wall Hypersonic Turbulent Boundary Layers On Flat Plate, Junji Huang, Gary L. Nicholson, Lian Duan, Meelan M. Choudhari, Rodney D.W. Bowersox

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Direct numerical simulations (DNS) of flat-plate, zero-pressure-gradient turbulent boundary layers are presented for nominal freestream Mach numbers of 11 and 14 and a highly cooled wall (wall-to-recovery temperature of approximately 0.2). The flow conditions of the DNS are representative of the experimental data for a Mach 11.1 turbulent boundary layer on a flat plate that was tested at Calspan–University of Buffalo Research Center (CUBRC) and the operational conditions of the AEDC Hypervelocity Tunnel No. 9 at Mach 14. The wall shear stress and turbulent heat flux predicted by DNS show good comparisons with those measured at CUBRC and those modeled …

Vietnamese Punctuation Prediction Using Deep Neural Networks, Thuy Pham, Nhu Nguyen, Hong Quang Pham, Han Cao, Binh Nguyen

Research Collection School Of Computing and Information Systems

Adding appropriate punctuation marks into text is an essential step in speech-to-text where such information is usually not available. While this has been extensively studied for English, there is no large-scale dataset and comprehensive study in the punctuation prediction problem for the Vietnamese language. In this paper, we collect two massive datasets and conduct a benchmark with both traditional methods and deep neural networks. We aim to publish both our data and all implementation codes to facilitate further research, not only in Vietnamese punctuation prediction but also in other related fields. Our project, including datasets and implementation details, is publicly …

Challenges And Trends In Sustainable Corporate Finance: A Bibliometric Systematic Review, Tad Dat Bui, Mohd Helmi Ali, Feng Ming Tsai, Mohammad Iranmanesh, Ming-Lang Tseng, Ming K. Lim

Research outputs 2014 to 2021

Sustainable corporate finance is an attractive field of study in sustainability literature; however, the literature lacks systematic bibliometric analysis that provides a comprehensive review to clarify state-of-the-art sustainable corporate finance and that discusses new opportunities and potential instructions for further studies. To address this gap, this study adopts a literature review, bibliometric analysis, network analysis and co-wording technique to systematically investigate the Scopus database. In total, 30 keywords listed at least three times are used and are divided into six clusters considering six fields of research, namely, corporate finance in corporate sustainability, sustainable competitive advantages, sustainable stakeholder engagement, circular economy, …

Real-Time Assembly Operation Recognition With Fog Computing And Transfer Learning For Human-Centered Intelligent Manufacturing, Wenjin Tao, Md Al-Amin, Haodong Chen, Ming-Chuan Leu, Zhaozheng Yin, Ruwen Qin

Mechanical and Aerospace Engineering Faculty Research & Creative Works

In a human-centered intelligent manufacturing system, every element is to assist the operator in achieving the optimal operational performance. The primary task of developing such a human-centered system is to accurately understand human behavior. In this paper, we propose a fog computing framework for assembly operation recognition, which brings computing power close to the data source in order to achieve real-time recognition. For data collection, the operator's activity is captured using visual cameras from different perspectives. For operation recognition, instead of directly building and training a deep learning model from scratch, which needs a huge amount of data, transfer learning …

A Brief Review On 3d Bioprinted Skin Substitutes, Fateme Fayyazbakhsh, Ming-Chuan Leu

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The Global Escalating Cases of Skin Donor Shortage for Patients with Severe Wounds Warn the Vital Need for Alternatives to Skin Allografts. over the Last Three Decades, Research in the Skin Regeneration Area Has Addressed the Unmet Need for Artificial Skin Substitutes. 3D Bioprinting is a Promising Innovative Technology to Accurately Fabricate Skin Constructs based on Natural or Synthetic Bioinks, Whether Loaded or Not Loaded with Native Skin Cells (I.e., Keratinocytes and Fibroblasts) or Stem Cells in the Prescribed 3D Hierarchal Structure to Create Artificial Multilayer and Single Cell-Laden Construct. in This Paper, the Recent Developments in 3D Bioprinting for …

Asia Pacific Perspectives Vol. 16 No. 2, 2020, University Of San Francisco

Asia Pacific Perspectives

Contents:

Editor's Introduction by Melissa S. Dale

We are pleased to announce the publication of the latest issue of Asia Pacific Perspectives. In vol. 16, no. 2 (2020), we present the multifaceted ways in which scholars in the humanities and social sciences are looking at food and culture in the Asia Pacific. Beyond satisfying our curiosity about food trends and consumption patterns both past and present, our latest issue also considers themes important for our understanding of East Asia during the 20th and 21st centuries including global modernity, imperialism, the history of food in East Asia, the history of animal …

Reflections On The Origin Of Some Letters In The Glagolitic Alphabet, Part 2, Gerald Leonard Cohen

Arts, Languages and Philosophy Faculty Research & Creative Works

No abstract provided.

Introduction, Heather Neff, Jasmine Lee

Faculty Scholarship 2020

No abstract provided.

Building Empathy And Developing Instructional Design Experience And Skills: A Case Study Of Using Personas To Design Open Education Resources, John Baaki, Jennifer Maddrell

STEMPS Faculty Publications

This single case study involves the authors’ participation and observation of a massive open online course. To help instructional designers (IDs) develop open education resources for adults attempting to pass a United States high school equivalency exam, we constructed six personas that helped IDs put themselves in the users’ shoes. We begin by providing an overview of the scholarship that connects empathy, empathic design, persona construction, and meaning-making. After presenting our case study methodology and how we constructed six authentic personas, we present eight themes that demonstrate how IDs used the personas to build empathy for users and to develop …

New County Records Of Amphibians And Reptiles From South Texas, Usa, Clinton J. Guadiana, Padraic S. Robinson, Matthew S. Schalk, Drew R. Davis

School of Earth, Environmental, & Marine Sciences Faculty Publications

Several species of amphibians and reptiles reach their northern range limit in south Texas, USA. Herpetological research in the area, as well as frequent visits from amphibian and reptile enthusiasts, have helped to form a more complete understanding of amphibian and reptile distributions across the region. However, gaps in the recognized distribution of many species remain. Efforts to better document species occurrence are confounded by the lack of public land and the fact that most of south Texas is privately owned, making access to suitable habitat difficult (Schmidly et al. 2001)

Book Review: : Virtue And Meaning: A Neo-Aristotelian Perspective, By David Mcpherson, James Mcguire

Jesuit Higher Education: A Journal

No abstract provided.

From Open Access To Open Science: The Path From Scientific Reality To Open Scientific Communication, Christian Heise, Joshua M. Pearce

Michigan Tech Publications, Part 1

Although opening up of research is considered an appropriate and trend-setting model for future scientific communication, it can still be difficult to put open science into practice. How open and transparent can a scientific work be? This article investigates the potential to make all information and the whole work process of a qualification project such as a doctoral thesis comprehensively and freely accessible on the internet with an open free license both in the final form and completely traceable in development. The answer to the initial question, the self-experiment and the associated demand for openness, posed several challenges for a …

Exploration Of Approaches To Arabic Named Entity Recognition, Husamelddin Balla, Sarah Jane Delany

Conference papers

Abstract. The Named Entity Recognition (NER) task has attracted significant attention in Natural Language Processing (NLP) as it can enhance the performance of many NLP applications. In this paper, we compare English NER with Arabic NER in an experimental way to investigate the impact of using different classifiers and sets of features including language-independent and language-specific features. We explore the features and classifiers on five different datasets. We compare deep neural network architectures for NER with more traditional machine learning approaches to NER. We discover that most of the techniques and features used for English NER perform well on Arabic …

The Influence Of Santería In Leo Brouwer's Solo Guitar Works (1955–1993), Eoin Flood

Doctoral

This study will assess the solo guitar works of Cuban composer Leo Brouwer (1939–present) in terms of influence from Santería, a ritual music derived from WestAfrican slaves and still practised in Cuba. This will be achieved by using both analytical and evaluative processes. For the former, a range of influential parameters have been identified, each falling under three strands: rhythmic and metric, structural, and melodic. These will be revealed in all of Brouwer’s solo guitar works written from 1955 to 1993. A parameter’s influence can be revealed in two ways: the multitude of its usage per piece, or the percentage …

Latin American Cinema, Mirna Vohnsen

Articles

Although studies of Argentine, Mexican and Cuban cinema continue to dominate the Latin American film scholarship, in the past two years, there has been increasing interest in examining the minor cinemas of the region. The expanding local film industries, the new technical trends and the increase in cinematic productions across all Latin America have captured the attention of academics and critics who have devoted their research to explore the lesser-known films of, for example, Uruguay, Colombia and Central America

Catawba Indian Land Claim Dispute Records - Accession 779, Catawba Indian Land Claim

Manuscript Collection

The Catawba Indian Land Claim Records consist of newspaper articles, magazine articles, court cases and decisions, legislation, and other records related to the Catawba Indian Nation’s Land Claim that went to the Supreme Court in 1986. South Carolina v. Catawba Indian Tribe, Inc., 476 U.S. 498 was an important case regarding aboriginal title in the United States. A settlement was eventually reached where the Catawba Indian Nation’s aboriginal title was revoked in exchange for $50,000,000 in 1993. This collection would prove invaluable to anyone researching the Catawba Indian Nation, its history, and relation to local history.

Posthuman Iterations Of Literacy Coaching: A Walking Inquiry, Leslee Kathryn Bailey Tarbett

Electronic Theses and Dissertations Archive

Literacy coaching holds great potential to support professional growth over time, however, within the research literature, there has been a consistent call for a more expansive and interconnected exploration of the many aspects (social, linguistic, material, affective, etc.) that work together to produce knowledge in a literacy coaching context. This posthuman post-qualitative study explored how a K-2 school environment created certain iterations of literacy coaching through specific school policies, practices, spaces, non-human materials, and humans (e.g. interactions with teachers, administrators, etc.). Participants included one school-based literacy coach, school principal, two teachers, and the district literacy supervisor working at Magnolia Springs …

Gamification Applied To Faculty Professional Development: A Case Study, Scott Wesley Vann

Electronic Theses and Dissertations Archive

The purpose of this qualitative case study was to examine online faculty perceptions of engagement within a gamified professional development course at a large urban research university. Over the last decade, gamification has been a trending topic in education because it allows learners an opportunity for contextualized and engaged learning by applying game-thinking to solve problems. Research has shown a direct link between increased levels of engagement when gamification elements such as badging, leaderboards, leveling, etc. are introduced into online learning environments. Currently, literature on the use of gamification is focused on learners in secondary and post-secondary learning institutions and …

Teacher Identity And The Core: A Narrative Inquiry Into The Relationship Between Teacher Identity And Lesson Planning In The Common Core Era, Casie Ruth Wise

Electronic Theses and Dissertations Archive

With reports of teacher shortages across many states, the discussion in education turns to how to retain high-quality teachers. The duration that teachers remain in classroom positions is decreasing, and the high turnover rate has a direct impact on student performance. Socially and politically teachers are scrutinized for declining test scores which mostly recently led to a major reform shift known as Common Core. The continued scrutiny and micromanagement through reform changes have a substantial impact on the professionalization of teaching and the professional identity of teachers themselves. Through a pragmatic lens, narrative inquiry was used to better understand how …

Three Essays On Fairness, Liquidity, And Efficiency In Modern Financial Markets, Jiang Zhang

Electronic Theses and Dissertations Archive

This dissertation research comprises three essays. In the first essay, we study the impact of high-frequency trading on market fairness and efficiency. The implementation of the Arrowhead Renewal on the Tokyo Stock Exchange (TSE) in 2015 reduced latency from 1 millisecond to less than 0.5 milliseconds and led to an increase in high-frequency tradingas proxied by the cancel-to-trade ratioof 34%, We find that the number of incidents of marking-the-close declined by 17%, indicating that market fairness improves. We find that for high-tick-size and high-market-capitalization stocks market efficiency improves, but for low-tick-size and low-market-capitalization stocks, it does not. In the second …

Transnational Family Language Policy And Religious Identity: An Autoethnographic Study, Muhammad Ahmad Alasmari

Electronic Theses and Dissertations Archive

A growing trend in the field of family language policy (FLP) is to examine the interplay between language ideologies and practices and to explore the complex links between linguistic and non-linguistic forces in shaping language ideologies and meaning-making processes in multilingual families (Curdt-Christiansen, 2016; King & Lanza, 2017). The current study extends this discussion on the interplay between family external and internal factors, the processes parents experience, and their connection to dynamicity in the FLP to show how family members draw on their linguistic resources and experiences with multilingualism to define themselves within the family and wider community (King & …

The Role Of First Language Literacy On Second Language Literacy: The Perceptions Of Graduate Saudi Students In Us Universities, Muhammad Alrayes

Electronic Theses and Dissertations Archive

AbstractAlrayes, Muhammad AbdulMohsin. PhD. The University of Memphis. May 2020. The Role of First Language Literacy on Second Language Literacy: The Perceptions of Graduate Saudi Students in US Universities. Major Professor: Dr. Emily Thrush.ArrayThis study attempted to gather the perceptions of graduate Saudi students in the United States about the role of their first/second languages'(L1/L2) literacy transfer during their graduate work. The ultimate goal of this study is to reach a level of understanding about what specific role a students L1 literacy and educational background could play in shaping their L2 literacyduring graduate studies in an ESL context. Building on …

How Do Market And Organizational Factors Affect Quality Of Care: Mammography Follow-Up Rate, Jessica Marie Escareno

Electronic Theses and Dissertations Archive

A mammogram follow-up rate investigates the rate of initial mammograms that require a follow-up visit to confirm breast cancer. The ideal mammogram follow-up rate for an organization is 10%. Rates below mean organizations are underperforming the scan and missing possible cancer cases; above means that hospitals are overdoing mammograms. Previous research examined the problem in a micro-level approach focusing on patient and provider level factors. Open systems theory views the problem from a macro-level approach showing the components and how they interact with each other and their environments. The objectives of this study include reviewing how open systems theory can …

A Randomized Pilot Trial Of A Mobile-Delivered Brief Behavioral Economic Intervention To Reduce Emerging Adult Alcohol Misuse, Kathryn Soltis Gex

Electronic Theses and Dissertations Archive

Objective. Heavy episodic drinking is a significant social and public health problem that peaks during emerging adulthood. In-person brief motivational interventions have been shown to be efficacious in reducing heavy drinking and problems in college students, but require student effort and personnel resources that may limit dissemination. The current study examined the feasibility, acceptability, and preliminary efficacy of a counselor-administered, synchronous text-message delivered brief motivational intervention aimed to reduce college student alcohol misuse. Method. Participants were 66 college students (63.6% identified as cisgender women; 61.9% identified their race as White; Mage = 19.95, SD = 1.66) who at baseline reported …

Erwin Schulhoff (1894 - 1942): Life, Work, And Analysis Of String Quartet No. 2 (Wv 77), Miguel Alejandro Lesmes

Electronic Theses and Dissertations Archive

ABSTRACTErwin Schulhoff was a Czech composer and pianist of Jewish heritage whose life came to an untimely end in the Holocaust. His work incorporated elements of several avant-garde and popular styles of his day, and he advocated for popular styles, such as jazz and folk music, to be included on the classical stage. His career was hindered by the Nazis through the last decade of his life until he was captured and sent to the Wlzburg concentration camp, where he died at the age of 48. After his death, his work did not receive much attention for about forty years. …

Saudi Efl Learners Knowledge And Use Of English Prepositional Verbs In Academic Writing, Hatim Abdulhadi Masoudi

Electronic Theses and Dissertations Archive

Prepositional verbs are essential for English as a foreign language (EFL) and English as a second language (ESL) learners in academic writing. However, most learners, regardless of their proficiency, encounter difficulties using these verbs, and there is a lack of research on these difficulties. This study sought to describe, analyze, and understand Saudi EFL learners knowledge and use of English prepositional verbs in academic writing. The study also assesses the relevant teaching contexts and reasons behind common errors.The study utilized a mixed-methods approach with data collected from a cloze test, multiple-choice test, and semi-structured interview. The two tests were administered …