Global Research Collaboration and International Education: Laser Metal Deposition of Varying Percent of Ti-6Al-4V + Molybdenum on Ti64 Substrate for Biomedical/Aerospace Applications

2016 ◽  
Author(s):  
Subha Kumpaty ◽  
Esther Akinlabi ◽  
Christopher Reynolds ◽  
Robert Mueller ◽  
Sisa Pityana
Keyword(s):  
South Africa ◽  
International Education ◽  
Undergraduate Students ◽  
Research Collaboration ◽  
Substrate Surface ◽  
Research Experiences ◽  
Scanning Velocity ◽  
Aerospace Applications ◽  
Characterization Studies ◽  
Global Research

This paper presents the characterization studies conducted by Milwaukee School of Engineering senior undergraduate students in South Africa under the Research Experiences for Undergraduates grant EEC-1460183 sponsored by the National Science Foundation (Principal Investigator Dr. Kumpaty). Robert Mueller and Christopher Reynolds conducted research in summer of 2015 under advisement of Dr. Kumpaty and his South African collaborators, Dr. Esther Akinlabi and Dr. Sisa Pityana. The foreign collaborators’ excellent support was pivotal to the success of our U.S. students. Ti-6 Al-4 V is a titanium alloy that accounts for about 80% of the titanium market. The Ti-64 alloy contains 6 wt% Aluminum and 4 wt% Vanadium, an almost equal ratio of α + β phases. Through the laser surface modification process known as Laser Meal Deposition, this alloy offers the optimum combination of enhanced properties. This research focuses on the application of adding a combination of molybdenum (Mo) and Ti-64 powders to a Ti-64 substrate surface in order to improve the durability for various biomedical/aerospace applications. Deposition of the powders was completed at the CSIR - National Laser Center, in Pretoria, South Africa. The characterization studies were carried out at the University of Johannesburg. The results of the hardness tests showed that the addition of molybdenum to Ti-64 increased the hardness of the deposited material compared to that of the substrate. This verifies that the addition of Mo to metals can affect the mechanical properties to better suit various applications. While Robert Mueller studied the effect of laser power on the properties of laser metal deposited Ti-6Al-4V + Mo for wear resistance enhancement, Christopher Reynolds investigated scanning velocity influence on the evolving properties of laser metal deposited Ti-6Al-4V + Mo. The results of this promising research and various options for further investigation are presented. The beneficial value of such a global research enterprise on the budding engineers will be apparent and the paper details the process of the international component of the Research Experiences for Undergraduates.

Global Research Engagement by Undergraduates and its Impact: Laser Metal Deposition Studies in US-South Africa Collaboration

2017 ◽  
Author(s):  
Subha Kumpaty ◽  
Esther Akinlabi ◽  
Elizabeth Paoli ◽  
Arianna Ziemer ◽  
Sisa Pityana
Keyword(s):  
South Africa ◽  
Undergraduate Students ◽  
Metal Deposition ◽  
Functionally Graded ◽  
Cultural Immersion ◽  
Laser Metal Deposition ◽  
Research Experiences ◽  
Research Engagement ◽  
The University ◽  
Global Research

This paper presents the follow-up work of research conducted by Milwaukee School of Engineering senior undergraduate students in South Africa under the second year of the Research Experiences for Undergraduates grant EEC-1460183 sponsored by the National Science Foundation (Principal Investigator Dr. Kumpaty). Elizabeth Paoli and Arianna Ziemer conducted research in summer of 2016 under advisement of Dr. Kumpaty and his South African collaborators, Dr. Esther Akinlabi and Dr. Sisa Pityana. Arianna extended the work of Mueller (reported in IMECE2016-65094), with 10% Mo in the combination of Ti64-Mo deposited on Ti64 substrate at a laser power of 1700 W for five scan speeds ranging from 0.5 to 1.5 m/min. It was observed that lower scan speeds produced elongated grains. Hardness and corrosion tests were also completed in her study. Elizabeth worked on varying the percent of Mo from layer to layer deposited (5%, 10%, 15%) and characterized these functionally graded samples for biomedical applications. Laser metal deposition was completed at the CSIR – National Laser Center, in Pretoria, South Africa and the material characterization was performed at the University of Johannesburg as in the previous year. An alumnus of MSOE, Peter Spyres was an important liaison for our international REU participants as he engaged them during the weekends in a cultural immersion which otherwise would not have been possible. While the research collaborators have generously provided support, it is the care taken by Peter’s remarkable household, which enhanced the beneficial value of this global research enterprise. The paper addresses yet another successful completion of the international Research Experiences for Undergraduates.

Study on Functionally Gradient Materials Under International Research Experiences for Undergraduates Program: US - South Africa Collaboration

2018 ◽  
Author(s):  
Subha Kumpaty ◽  
Esther Akinlabi ◽  
Andrew Gray ◽  
Kevin Sivak ◽  
Mutiu Erinosho ◽  
...  
Keyword(s):  
South Africa ◽  
Undergraduate Students ◽  
International Research ◽  
Functionally Graded ◽  
Cultural Immersion ◽  
Graded Materials ◽  
Research Experiences ◽  
Ongoing Research ◽  
Scan Speed ◽  
The University

This paper details the ongoing research conducted by Milwaukee School of Engineering senior undergraduate students in South Africa under the third year of the Research Experiences for Undergraduates grant EEC-1460183 sponsored by the National Science Foundation (Principal Investigator Dr. Kumpaty). Andrew Gray and Kevin Sivak conducted research in summer of 2017 under advisement of Dr. Kumpaty and his South African collaborators, Dr. Esther Akinlabi, Dr. Mutiu Erinosho and Dr. Sisa Pityana. They extended the work of Paoli (reported in IMECE2017-71037), with varying percent of Mo (0–15%) in the combination of Ti64-Mo deposited on Ti64 substrate at laser powers of 1500 and 1700 W for a select scan speed. Laser metal deposition was completed at the CSIR – National Laser Center, in Pretoria, South Africa and the material characterization was performed at the University of Johannesburg as in the previous year. Hardness decreased with addition of Mo. Lowest hardness was observed in 10% Mo layers, and greater percent of Mo led some agglomeration issues due to its melting temperature being much higher than that of Ti64. Corrosion tests were also attempted. Etching challenges were present as percent of Mo varied in the same sample. Results are directly applicable to biomedical industry in evaluating functionally graded materials. An alumnus of MSOE, Peter Spyres served as a liaison for our international REU participants as he engaged them during the weekends in a cultural immersion which otherwise would not have been possible. Gray and Sivak were able to spend July 4th at the U.S. Consulate in Pretoria. While the research collaborators have generously provided support, it is the care taken by Peter’s remarkable household, which enhanced the beneficial value of this international research enterprise.

RESEARCH COLLABORATION AMONG LIBRARY AND INFORMATION SCIENCE SCHOOLS IN SOUTH AFRICA (1991–2012): AN INFORMETRICS STUDY

Mousaion ◽  
2017 ◽  
Vol 34 (3) ◽  
pp. 36-59 ◽  
Author(s):  
Jan R. Maluleka ◽  
Omwoyo B. Onyancha
Keyword(s):  
South Africa ◽  
Information Science ◽  
Research Collaboration ◽  
Science And Technology ◽  
Library And Information Science ◽  
Limited Extent ◽  
Microsoft Excel ◽  
The Past ◽  
Software Packages ◽  
Collaborative Activities

This study sought to assess the extent of research collaboration in Library and Information Science (LIS) schools in South Africa between 1991 and 2012. Informetric research techniques were used to obtain relevant data for the study. The data was extracted from two EBSCO-hosted databases, namely, Library and Information Science Source (LISS) and Library, Information Science and Technology Abstracts (LISTA). The search was limited to scholarly peer reviewed articles published between 1991 and 2012. The data was analysed using Microsoft Excel ©2010 and UCINET for Windows ©2002 software packages. The findings revealed that research collaboration in LIS schools in South Africa has increased over the past two decades and mainly occurred between colleagues from the same department and institution; there were also collaborative activities at other levels, such as inter-institutional and inter-country, although to a limited extent; differences were noticeable when ranking authors according to different computations of their collaborative contributions; and educator-practitioner collaboration was rare. Several conclusions and recommendations based on the findings are offered in the article.

scholarly journals Setting the global research agenda for community-based HIV service delivery through the faith sector

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Martha T. Ndlovu-Teijema ◽  
Maarten O. Kok ◽  
Sabine L. van Elsland ◽  
Hilleen Smeets ◽  
David Barstow ◽  
...  
Keyword(s):  
South Africa ◽  
Focus Group ◽  
Research Agenda ◽  
Primary Research ◽  
Focus Group Discussions ◽  
Online Questionnaire ◽  
Group Discussions ◽  
Community Based ◽  
Faith Leaders ◽  
Global Research

Abstract Background While leading AIDS organizations expect faith and health collaborations to play a crucial role in organizing and scaling up community-based HIV services, it is unclear how this can be realized. Little primary research has been conducted into which strategies for collaboration and service provision are most effective, efficient, scalable and sustainable. Seeking to align research with urgent needs, enhance coordination and increase the likelihood that results are used, this study aimed to set an inclusive global research agenda that reflects priority research questions from key stakeholders at the intersection of HIV healthcare and faith. Methods In order to develop this global research agenda, we drew from document analyses, focus group discussions, interviews with purposively selected key informants from all continents (policy-makers, healthcare providers, faith leaders, academics and HIV activists), an online questionnaire, and expert meetings at several global conferences. We carried out focus group discussions and interviews with faith leaders in South Africa. Other stakeholder focus groups and interviews were carried out online or in person in France, Switzerland, the Netherlands and South Africa, and virtual questionnaires were distributed to stakeholders worldwide. Respondents were purposively sampled. Results We interviewed 53 participants, and 110 stakeholders responded to the online questionnaire. The participants worked in 54 countries, with the majority having research experience (84%), experience with policy processes (73%) and/or experience as a healthcare provider (60%) and identifying as religious (79%). From interviews (N = 53) and questionnaires (N = 110), we identified 10 research themes: addressing sexuality, stigma, supporting specific populations, counselling and disclosure, agenda-setting, mobilizing and organizing funding, evaluating faith-health collaborations, advantage of faith initiatives, gender roles, and education. Respondents emphasized the need for more primary research and prioritized two themes: improving the engagement of faith communities in addressing sexuality and tackling stigma. Conclusions A wide range of respondents participated in developing the research agenda. To align research to the prioritized themes and ensure that results are used, it is essential to further engage key users, funders, researchers and other stakeholders, strengthen the capacity for locally embedded research and research uptake and contextualize priorities to diverse religious traditions, key populations and local circumstances.

Three-Year Study of the Impact of a Research Experience Program in Aerospace Engineering on Undergraduate Students

2021 ◽  
Vol 4 (4) ◽  
pp. 23-32
Author(s):  
Jacques C. Richard ◽  
So Yoon Yoon
Keyword(s):  
Undergraduate Students ◽  
Career Paths ◽  
Research University ◽  
Aerospace Engineering ◽  
Research Experience ◽  
Research Knowledge ◽  
Research Experiences ◽  
Public Research University ◽  
The Impact ◽  
Engineering Career

This study reports results from a three-year implementation of a Research Experiences for Undergraduates (REU) program funded by the National Science Foundation in aerospace engineering at a public research university in the southwestern United States. Students’ perceptions of research knowledge, skills, and engineering career paths were all positively affected.

scholarly journals A Framework for Implementing Course-Based Undergraduate Research Experiences (CUREs) in Freshman Biology Labs

2016 ◽  
Vol 78 (6) ◽  
pp. 448-455 ◽  
Author(s):  
Arundhati Bakshi ◽  
Lorelei E. Patrick ◽  
E. William Wischusen
Keyword(s):  
Undergraduate Students ◽  
Research University ◽  
Undergraduate Research ◽  
Research Projects ◽  
Implementation Barriers ◽  
Research Experiences ◽  
Undergraduate Research Experiences ◽  
Widespread Implementation ◽  
Flexible Framework ◽  
Large Research

There have been many calls to make research experiences available to more undergraduate students. One way to do this is to provide course-based undergraduate research experiences (CUREs), but providing these on a scale large enough to accommodate many students can be a daunting undertaking. Indeed, other researchers have identified time to develop materials and course size as significant barriers to widespread implementation of CUREs. Based on our own experiences implementing CUREs at a large research university, we present a flexible framework that we have adapted to multiple research projects, share class materials and rubrics we have developed, and suggest logistical strategies to lower these implementation barriers.

scholarly journals Early year undergraduate researchers’ reflections on the values and perceived costs of their research experience

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Gaye D. Ceyhan ◽  
John W. Tillotson
Keyword(s):  
Achievement Motivation ◽  
Undergraduate Students ◽  
Undergraduate Research ◽  
Intrinsic Value ◽  
Value Theory ◽  
Research Experience ◽  
Expectancy Value ◽  
Research Experiences ◽  
Research Findings ◽  
Future Work

Abstract Background Prior research reported that motivational beliefs that individuals attach to specific tasks predict continuing interest and persistence in the task. A motivational approach may be particularly useful for understanding undergraduate students’ engagement with research in their first and second years in college. The current study utilizes the expectancy-value theory of achievement motivation to qualitatively explore how much and in what ways early year undergraduate researchers value their research experience and what kinds of costs they associate with it. Results The results revealed that intrinsic value had the highest expression in participants’ motivation to engage in research. The second most expressed value type was the utility value of undergraduate research with regards to obtaining the desired outcomes, and attainment value played the least important role in participants’ motivation to engage in research. Findings also indicated that some of the participants associated a cost(s) to their research experience. The highest mentioned perceived cost was opportunity cost, where participants commented on losing other valued alternatives when engaging in research. Participants commented on the time, effort, or amount of work needed to engage in research, and a few participants commented on the emotional cost associated with their research experience in terms of the fear of failure. Conclusion As perceived cost is the least studied in the expectancy-value framework, this study contributes to cost values within college students, particularly about early year undergraduate researchers. The findings of this study can form the basis for future work on exploring ways to increase the values and decrease the costs students experience in their undergraduate research experiences.

scholarly journals Supporting Chinese Undergraduate Students in Transition at U.S. Colleges and Universities

2017 ◽  
Vol 7 (4) ◽  
pp. 963-989
Author(s):  
Kerrie A. Montgomery
Keyword(s):  
United States ◽  
International Education ◽  
Undergraduate Students ◽  
Phenomenological Study ◽  
The United States ◽  
First Year ◽  
Orientation Programs ◽  
Residential Life ◽  
And Coping ◽  
Students In Transition

The Chinese undergraduate student population currently represents 12.8% of all international students enrolled in the United States (Institute for International Education, 2015a).  In an effort to understand the experiences of this population in their first year of college in the United States, a phenomenological study was conducted using a conceptual framework comprising Schlossberg’s Transition Model (Schlossberg, Waters, & Goodman, 1995) and the Culturally Engaging Campus Environments (CECE) Model (Museus, 2014). Three transition types were identified – academic, social/personal, and linguistic – and participants’ preparation, sources of institutional support, and coping strategies for moving through these transitions were examined. Recommendations for practice include: multi-faceted, mandatory orientation programs; ongoing workshops and resources beyond orientation; and improvements to housing and residential life opportunities and experiences.

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