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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

ADDRESSING CORPORATE KNOWLEDGE LOSS IN A UNIVERSITY UTILITY PLANT

Kelly A McFall (9622742) 16 December 2020 (has links)
<p>This research was a pilot study in a larger project that focused on how to retrieve knowledge from retiring long-term employees of a small university utility plant, incorporate that material into their existing training program, and during the process reduce the training time for current and future employees. Wade utility plant faced the retirement of eight employees with nearly 200 years of corporate knowledge within three years, but their current training program required seven to nine years to complete. The study utilized interviews, first-hand observation and partnership with current employees to explore how best to obtain the corporate knowledge that would be lost when the proletarian workers retired. The study revealed that the training program needed to be updated, and communication, trust and training evaluation continuity needed to be addressed. Due to these issues, trust was built through transparency by the researcher, and suggestions were made to management for moving forward. This study adds to the body of knowledge by utilizing knowledge capture techniques in a utility plant, highlighting effective knowledge capture techniques for proletarian workers, the importance of corporate planning for the effect of group retirements, and how incorporating proletarian workers into training creation can make a positive impact on company relationships.</p>
62

Analysis of Fingerprint Recognition Performance on Infants

Samuel J Reiff (9183044) 29 July 2020 (has links)
<p>In this study, any change in fingerprint performance, image quality and minutiae count for infants in three different age groups was evaluated (0-6, 7-12, and >12 months). This was done to determine whether there is a difference in performance between infant age groups for a fingerprint recognition system.</p> <p>The purpose of this research was to determine whether there is a difference in infant fingerprint performance and image quality metrics, between three different age groups (0-6, 7-12, and >12 months old), using the same optical sensor? The data used for this secondary analysis was collected as part of a longitudinal multimodal infant study, using the Digital Persona U.are.U 4500. DET curves, zoo analysis, and image quality metrics were used to evaluate performance and quality factored by infant age group.</p><p>This study found that there was a difference in image quality and minutiae count, genuine and impostor match scores, and performance error rates (EER) between the three age groups. Therefore, quality and performance were dependent on age. While there was a difference in performance between age groups, there was generally stability for subjects who overlapped between multiple age groups. Difference in performance was most likely due to the difference in physical characteristics between subjects in each age group, rather than individual instability. The results showed that it could potentially be feasible to use fingerprint recognition for children over the age of 12 months.</p>
63

The Study of Behavior of Passenger Car-Semi-Autonomous Trailer Connections under Load

Yury Kuleshov (11187051) 27 July 2021 (has links)
<div><p>A variety of passenger car-trailer connections exist on the market. One specific type of the connections provides a tensile force measurement capability for the purpose of providing feedback for the semi-autonomous trailer’s control system. Semi-autonomous trailer is an innovative technology that can encourage drivers to use smaller vehicles for towing, which will contribute to restoration and improvement of urban infrastructure (NAE Grand Challenges for Engineering, 2020). The vehicle-semi-autonomous trailer connection’s safety concerns depend on multiple factors, but start with either a mechanical, or an electrical failure. The topic of safety of passenger car-semi-autonomous trailer connections is not well present in literature. The connections’ mechanical failures under load are in the focus of this work. The author addressed the following research question and the sub question. How do the existing “passenger car-trailer” connections with tensile force measurement capability compare to one another under load in terms of the possible failure? What is the failure mode of each of the compared connections? The author selected three prototypes from the literature, built three-dimensional (3D) models in SolidWorks 2018 and simulated the tests in the program’s add-on in accordance with the requirements of an industry standard on real-life testing of specific vehicle systems. The author compared the three prototypes by a number of different parameters. The research showed that none of the three existing prototypes are public road-ready in terms of safety. The study can be useful for future designers of passenger-car-semi-autonomous trailer connections.</p></div>
64

DIGITAL TWIN: FACTORY DISCRETE EVENT SIMULATION

Zachary Brooks Smith (7659032) 04 November 2019 (has links)
Industrial revolutions bring dynamic change to industry through major technological advances (Freeman & Louca, 2002). People and companies must take advantage of industrial revolutions in order to reap its benefits (Bruland & Smith, 2013). Currently, the 4th industrial revolution, industry is transforming advanced manufacturing and engineering capabilities through digital transformation. Company X’s production system was investigated in the research. Detailed evaluation the production process revealed bottlenecks and inefficiency (Melton, 2005). Using the Digital Twin and Discrete Event Factory Simulation, the researcher gathered factory and production input data to simulate the process and provide a system level, holistic view of Company X’s production system to show how factory simulation enables process improvement. The National Academy of Engineering supports Discrete Event Factory Simulation as advancing Personalized Learning through its ability to meet the unique problem solving needs of engineering and manufacturing process through advanced simulation technology (National Academy of Engineering, 2018). The directed project applied two process optimization experiments to the production system through the simulation tool, 3DExperience wiht the DELMIA application from Dassualt Systemes (Dassault, 2018). The experiment resulted in a 10% improvement in production time and a 10% reduction in labor costs due to the optimization

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