Digital Commons Network^™

Tribological And Dynamical Study Of An Automotive Transmission System, Meng Li

LSU Doctoral Dissertations

The transmission system is critical for automotive and heavy duty equipment due to its prominent role in the powertrain system, which is often challenged with degraded torque capacity and harsh dynamic response. Simulation-guided design can provide appropriate guidelines to resolve these problems with virtual analyses. In current study, the tribological and dynamical study of an automatic transmission is performed at two levels: a wet clutch and powertrain. In this dissertation, tribological study is performed for a wet clutch based on the thermohydrodynamic (THD) analysis that takes the following factors into account. • The groove effect (depth, area, and pattern) is …

Analytical Solutions And Multiscale Creep Analysis Of Functionally Graded Cylindrical Pressure Vessels, Jasem Amjad Ahmed

LSU Doctoral Dissertations

This study deals with the time-dependent creep analysis of functionally graded thick-cylinders under various thermal and mechanical boundary conditions. Firstly, exact thermoelastic stress, and iterative creep solutions for a heat generating and rotating cylindrical vessel made of functionally graded thermal and mechanical properties are proposed. Equations of equilibrium, compatibility, stress-strain, and strain-displacement relations are solved to obtain closed-form initial stress and strain solutions. It is found that material gradient indices have significant influences on thermoelastic stress profiles. For creep analysis, Norton’s model is incorporated into rate forms of the above-mentioned equations to obtain time-dependent stress and strain results using an …

Bonaparte's Dream: Napoleon And The Rhetoric Of American Expansion, 1800-1850, Mark Ehlers

LSU Doctoral Dissertations

Between 1800 and 1850, the United States built a continental empire that stretched from the Atlantic seaboard to the Pacific Ocean. As scholars have come to realize over the past three decades, this expansion was not a peaceful movement of American settlers into virgin wilderness. Instead, it involved the conquest and subjugation of diverse peoples in Louisiana, Florida and the northern provinces of Mexico, and forced the United States to interact aggressively with the European empires of Great Britain, France, Spain, and eventually Mexico. My work helps to explain how Americans in the early republic reconciled this militant expansion with …

Sediment Transport And Slope Stability In The Northern Gulf Of Mexico, Jeffrey Blake Obelcz

LSU Doctoral Dissertations

Sediment transport and slope stability are fundamental organizing agents of the geological record. These processes have been extensively studied along the northern margin of the Gulf of Mexico basin for both basic and applied purposes, but our knowledge of them is limited by the spatial and temporal sampling capabilities of traditional geologic oceanographic surveying tools such as coring, single-beam echosounders, and sidescan sonar. This dissertation seeks to update the state of knowledge regarding northern Gulf of Mexico sediment transport and slope stability from annual to millennial timescales, primarily using relatively high-resolution acoustic geophysical tools such as swath bathymetric echosounders and …

Deterritorializing Dichotomies In Teacher Induction: A (Post)Ethnographic Study Of Un/Becoming An Elementary Science Teacher, Maria Ferris Greene Wallace

LSU Doctoral Dissertations

Un/becoming an elementary science teacher is a dynamic phenomenon, yet the process is often intentionally limited to several taken-for-granted assumptions in research on science teacher induction. Inherent to research on beginning science teacher induction is also the construction of certain truths beginning science teachers, science teacher educators, and researchers think, feel, and live. This study complicates prevailing truths shaping notions of beginner, novice, induction, and traditions of inquiry as an ethicopolitical commitment to those implicated. In doing so, this study illuminates more expansive ways science teacher educators and those studying induction might study and understand the experiences of beginning science …

Maori Preserved Heads: A Legal History, Robert K. Paterson

All Faculty Publications

For the first three decades of the nineteenth century New Zealand remained untouched by outside law. Foreign contacts mostly involved visits by traders, whalers, and missionaries. The latter sought to discourage the Maori practice of tattooing (ta moko), while the former quite soon began to see opportunities for trade in preserved tattooed heads. Early accounts of New Zealand described these heads and their mode of preservation. Ob-servers noted that both the heads of enemy warriors slain in battle, along with those of deceased chiefs and others of high rank, were preserved. The process involved the removal of interior soft tissue …

Classical And Americanist Approaches To Human Osteology And Mortuary Archaeology, Alexandra Ptacek

Undergraduate Theses and Senior Projects

No abstract provided.

The Role Of Ethics Online And Among Social Media Designers, Meredith James

Schnitzer School of Art + Art History + Design Faculty Publications and Presentations

As communication designers, our roles have changed greatly with the technological advancements of the Internet and social media. With these vastly changing roles are equal (and often problematic) demands on designers to act as ethical interventionists. In specific, designers are more and more frequently finding themselves in roles of arbitration and decision-making surrounding ethical concerns. Such decisions span everything from what is to be considered “allowable content” (breastfeeding, for example) to deciding how our devices respond to crisis (Miner, et al., 2016). I intend to present several case studies of designers placed in authority positions centered around ethics and new …

Using Blog Comments As Feedback To Promote The Metacognitive Development Of Creativity, Mark Mcmahon, Heather Joseph

Research outputs 2014 to 2021

Creativity can be viewed, not just as a set of skills and strategies, but as an overarching metacognitive skill that integrates a range of subordinate generic skills. Key to developing creativity is to engage in a cycle of ideation, reflection and adjustment, within a feedback rich environment. Blogs have the ability to garner external comments that can prompt these processes. Case study research was undertaken to explore what forms of feedback promote metacognitive development and how those forms can best be elicited within a blog. Findings indicated that blog comments can motivate, provide information, enhance quality and promote reflection, and …

Valuing Users Of Needle Syringe Exchange Programs: Design Approaches Within The Healthcare Sector, Samantha Pekaar, Hanadi Haddad

Research outputs 2014 to 2021

Injecting drug users are among the most marginalised and stigmatised groups in society. This is a wicked problem exacerbated by multifaceted assumptions, misconceptions, and stereotypes surrounding injecting drug users. Stigmatisation results in injecting drug users being frequently denied basic human rights and subjected to severe social isolation (AIVL, 2003). Human-centered research approaches are particularly pertinent when conducting research in healthcare. The application of design approaches to define and address the perceived issues can result in more empathic and relevant designed outcomes (see Clarkson et al., 2010; Lamb, Zimring, Chuzi, & Dutcher, 2010; Loscin & Nagji, 2009; Razzouk & Shutre, 2012; …

Population-Based Cohort Study In Outcome Of Phased Progression Of Atherosclerosis In China (Persuade): Objective, Rationale And Design, Dong-Kai Shan, Yong Zhou, You-Xin Wang, Xiang Gao, Wei Wang, Jun-Jie Yang, Yun-Dai Chen

Research outputs 2014 to 2021

The coronary artery calcification score and pericardial fat volume have recently been reported to be strongly associated with the severity and presence of coronary atherosclerosis. However, no studies have explored the outcome of phased progression of atherosclerosis by non-contrast computed tomography in asymptomatic people in China. The population-based cohort study in outcome of phased progression of atherosclerosis in China (PERSUADE), an observational, longitudinal and prospective cohort study in a target population of healthy subjects based in Jidong Oilfield (China), prospectively analyzes the outcome of phased progression of atherosclerosis by non-contrast computed tomography in healthy population. The results of this study …

Fiber Bragg Grating Sensors For Mainstream Industrial Processes, Gary Allwood, Graham Wild, Steven Hinkley

Research outputs 2014 to 2021

This paper reviews fiber Bragg grating sensing technology with respect to its use in mainstream industrial process applications. A review of the various types of sensors that have been developed for industries such as power generation, water treatment and services, mining, and the oil and gas sector has been performed. A market overview is reported as well as a discussion of some of the factors limiting their penetration into these markets. Furthermore, the author’s make recommendations for future work that would potentially provide significant opportunity for the advancement of fiber Bragg grating sensor networks in these mainstream industries.

Anaemia Of Chronic Kidney Disease: What We Know Now, Anoushka R. Krishnan, Debbie Trinder, Anita C. G. Chua, Aron Chakera, Grant A. Ramm, John K. Olynyk

Research outputs 2014 to 2021

Our understanding of the pathophysiology of the anaemia of chronic kidney disease (CKD) has improved considerably in the last decade with the discovery of the iron regulatory peptide hepcidin. Reduced clearance of hepcidin and the presence of a chronic inflammatory state contribute to elevated hepcidin levels in kidney disease. The recent discovery of the various factors and signalling pathways regulating hepcidin has opened up an exciting avenue for research into the development of newer agents that could treat anaemia of CKD. This review highlights our current understanding of iron metabolism in health, the regulators of hepcidin, issues associated with the …

Clarence Thomas The Questioner, Ronnell Andersen Jones, Aaron L. Nielson

NULR Online

No abstract provided.

Drilling Reconfigurable Machine Tool Selection And Process Parameters Optimization As A Function Of Product Demand, Ana Vafadar, Kevin Hayward, Majid Tolouei-Rad

Research outputs 2014 to 2021

Special purpose machines (SPMs) are customized machine tools that perform specific machining operations in a variety of production contexts, including drilling-related operations. This research investigates the effect of optimal process parameters and SPM configuration on the machine tool selection problem versus product demand changes. A review of previous studies suggests that the application of optimization in the feasibility analysis stage of machine tool selection has received less attention by researchers. In this study, a simulated model using genetic algorithm is proposed to find the optimal process parameters and machine tool configuration. During the decision-making phase of machine tool selection, unit …

Over-Provision Of Discretionary Foods At Childcare Dilutes The Nutritional Quality Of Diets For Children, Ruth M. Wallace, Leesa N. Costello, Amanda Devine

Research outputs 2014 to 2021

The childcare setting can significantly influence the lifelong eating habits and health outcomes of children.It is ideal for health-promoting interventions that optimise the provision of nutritious food and nutrition education. Unfortunately, these interventions are neither offered nor promoted in many childcare settings. Recent studies have indicated an increased risk of overweight/obesity with childcare attendance, which if present in early life is associated with increased risk of chronic disease and reduced psychological wellbeing.

The Effect Of Teaching Science Using Mccarthy's' Model (4 Mat) On The 8th Grade Students' Retention Of Learning In Jordan, Abdelsalam M. Adili

Journal of Educational and Psychological Studies

This study aimed at finding the effect of using McCarthy's' Model (4 MAT) on 8th grade students' retention of learning in Jordan. The subjects of the study consisted of 86 students from the eighth grade from one Zarqa city school in the second semester of the academic year 2014/2015. The sample was divided into two groups: the experimental group which was taught using 4 MAT model, and the control group which learned in the traditional way. To achieve the objectives of the study, a quasi-experimental approach was followed, and the researcher prepared a valid and reliable achievement test which aimed …

The Patient Survey Programme: Transforming The Patient Experience In Irish Healthcare, Vivienne Byers, D. Fahey, C. Mullins, C. Roe

Articles

For more than a decade, health policy in Ireland has pushed the centrality of the patient in the delivery and management of healthcare services, including the development of a National Strategy for Service User Involvement in the Health Service 2008–2013 (Health Service Executive, 2008). More recently, the need to provide a ‘patientcentred’ (Department of Health, 2012, 2013, 2014) or ‘person-centred’ (Department of Health, 2016) service has been a guiding principle of health policy documents. The National Service Plan 2017 (Health Service Executive, 2016) also outlines the importance of increasing the rates of service user engagement and feedback across the health …

AndréS Segovia’S Unfinished Guitar Method: Placing His “Scales” In Historical Context, Andreas Stevens

Soundboard Scholar

For over sixty years, guitarists of my generation have been familiar with the so-called Segovia Scales—the systematic scale fingerings advocated by the Andalusian maestro. They have been an influential—some might say a definitive—bestseller since their first USA publication in 1953. Countless guitar students have incorporated them into their daily practice routines. For the publisher, Columbia Music, they seem to be the goose that laid the golden egg. Are they everything that Segovia wanted them to be? Two books of recent date on guitar technique attest to their enduring value and relevance. Thomas Offermann wrote in 2015: “The fingerings of the …

Sinfonia Concertante By Luigi Boccherini, Edited By Matanya Ophee, Richard Long

Soundboard Scholar

Sinfonia concertante (G. 523), by Boccherini, Luigi is reviewed.

La Guitare = The Guitar = La Chitarra, Paris, 1650-1950, Addendum, By Daniel Sinier And FrançOise De Ridder, Richard Long

Soundboard Scholar

La Guitare = The Guitar = La Chitarra, Paris, 1650-1950, Addendum, by Sinier, Daniel and Francoise de Ridder is reviewed.

A Newly Discovered Letter Of 1827 By Fernando Sor, Erik Stenstadvold

Soundboard Scholar

This article discusses a hitherto unknown letter, written by Sor in Saint Petersburg in April 1827. It provides new insight into the publishing and personal relationship between Sor and his Paris publisher, Antoine Meissonnier, to whom the letter was addressed. We learn about three airs with variations Sor was busy composing at the time; he was particularly pleased with the variations Meissonnier later published as op. 30. The letter also mentions some unknown Sor works, including a book of drafts at Málaga, and it reveals that Meissonnier had published, without Sor’s knowledge, music that he had received from sources other …

NapoléOn Coste: Composer And Guitarist In The Musical Life Of 19th-Century Paris By Ari Van Vliet, Richard Long

Soundboard Scholar

Napoleon Coste: Composer and Guitarist in the Musical Life of 19th-Century Paris, by Van Vliet, Ari is reviewed.

New Voices In Old Bodies: A Study Of “Recycled” Musical Instruments With A Focus On The Hahn Collection In The Deutsches Museum, By Panagiotis Poulopoulos, Richard Long

Soundboard Scholar

New Voices in Old Bodies: A Study of "Recycled" Musical Instruments with a Focus on the Hahn Collection in the Deutsches Museum, album by Poulopoulos, Panagiotis is reviewed.

The Russian Guitar 1800-1850 (Timofeyev And Schneiderman), Stanley Yates

Soundboard Scholar

The Russian Guitar 1800-1850, album by Oleg Timofeyev and John Schneiderman is reviewed.

Longer-Term Impact Of Highand Low Temperature On Mortality: An International Study To Clarify Length Of Mortality Displacement, Ben Armstrong, Michelle Bell, Micheline De Sousa Zanotti Stagliorio Coelho, Yue Liang Leon Guo, Yuming Guo, Patrick J. Goodman, Masahiro Hashizume, Yasushi Honda, Ho Kim, Eric Lavigne, Paola Michelozzi, Paulo Hilario Nascimento Saldiva, Joel Schwartz, Matteo Scortichini, Francesco Sera, Aurelio Tobias, Shilu Tong, Chang Fu Wu, Antonella Zanobetti, Ariana Zeka, Antonio Gasparrini

Articles

In many places, daily mortality has been shown to increase after days with particularly high or low temperatures, but such daily time-series studies cannot identify whether such increases reflect substantial life shortening or short-term displacement of deaths (harvesting).

A National Audit Of Smoking Cessation Services In Irish Maternity Units, C. Reynolds, B. Egan, Shona Cawley, S. Sheehan, M. Turner

Articles

Irish Medical Journal

Access the journal here

Pcr-Ribotype Distribution Of Clostridium Difficile In Irish Pigs, Katharina Stein, Sarah Egan, Helen Lynch, Celine Harmanus, Lorraine Kyne, Celine Herra, Sinead Mcdermott, Ed Kuijper, Fidelma Fitzpatrick, Susan Fitzgerald, Lynda Fenelon, Denise Drudy

Articles

Clostridium difficile is an important enteric pathogen in humans causing infections in the healthcare environment and the community. Carriage of C. difficile and C. difficile-related enterocolitis has been reported in piglets worldwide. The aim of this study was to investigate the rates of C. difficile isolation from pigs in Ireland. Faecal samples from piglet litters and sows were collected from six farms in 2015. The sows were non-diarrhoeal at the time of sampling. The diarrhoeal status of the piglets was unknown. C. difficile was isolated from 34/44 (77%) of piglet litter samples and from 33/156 (21%) of sow samples. The …

Beyond Ada Compliance: The Library As A Place For All, Jj Pionke

Urban Library Journal

In 2015, the American with Disabilities Act (ADA) celebrated its 25^th anniversary. While libraries have instituted ADA compliance initiatives since the law came into effect in 1990, and new libraries are generally designed with compliance in mind, to be truly accessible for all people, libraries must incorporate principles of universal design not just into the physical building but into all aspects of the library, including our web presence and the services we provide to patrons. This paper argues that libraries are falling far short of true accessibility and that there needs to be a serious mental shift in how …

Complementary Therapies In Libraries: A Future Perspective, Kellie Sparks

Urban Library Journal

Academic libraries can assist in the efficacy of student learning by offering specialized programming, spaces, and knowledge opportunities that delve into the use of complementary practices and techniques. By regularly offering resources that may be considered non-traditional such as meditation and yoga, libraries can assist students in gaining a greater awareness of themselves and their environment. Libraries can provide these services at the point of need and not limit these methods to only particular times of the academic year. Libraries can also become spaces for further research since much is still being examined regarding the effects of complementary practices on …