Theses and Dissertations from UMD
Permanent URI for this communityhttp://hdl.handle.net/1903/2
New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM
More information is available at Theses and Dissertations at University of Maryland Libraries.
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Item A GENDER ANALYSIS OF ENGINEERING PHD STUDENTS’ CAREER DECISION-MAKING PROCESS USING A BOUNDED AGENCY MODEL(2019) da Costa, Romina Bobbio; Stromquist, Nelly P.; Education Policy, and Leadership; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)This qualitative research study applies a bounded agency model in investigating the career decision making process of engineering PhD students at a large, public research university in the United States. Through a gender analysis of the career decision-making of men and women PhD students in engineering, this study sheds light on the reasons why men and women choose different career trajectories in engineering, with implications for diversifying the professoriate. This study highlights the ways in which men and women PhD students in engineering experience the university as an institution differently, and form different impressions of the academic career. The bounded agency model allows for a holistic examination of the organizational barriers, as well as the individual level dispositions and characteristics that work to limit the range of feasible alternaives and choices for men and women as they make their career choices. The findings provide insight into the career decision-making of men and women PhDs as an iterative process of information gathering, crystallization of values, and narrowing down of options. Gender differences are outlined at each stage in this process, providing a framework for furthering understanding of other underrepresented populations in the professoriate. Additionally, the findings have implications for graduate education in engineering, and for PhD student career development and choice, both in the United States and beyond. keywords: agency, bounded agency, career choice, career development, diversity in STEM, engineering education, gender, graduate student agency, graduate student experience, higher education, STEMItem Fostering Creativity in Engineering Students Using Psychological Theory(2018) Leonard, Jared; Schmidt, Linda C.; Mechanical Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Four experiments were conducted exploring the application of modern psychological theory to improving creative performance in engineering students, as measured by the divergent thinking test the Alternative Uses Task [AUT] and the graphical data analysis method linkography. Evidence was found for the presence of the serial order effect, but not for the efficacy of incubation or direct instruction in the psychology of creativity. A more practical test and instruction may be required. Making a meaningful improvement in the creativity of engineering students may require broad, systemic change in the way engineering is taught.Item Physical Aspects of VLSI Design with a Focus on Three-Dimensional Integrated Circuit Applications(2007-11-27) Dilli, Zeynep; Goldsman, Neil; Electrical Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)This work is on three-dimensional integration (3DI), and physical problems and aspects of VLSI design. Miniaturization and highly complex integrated systems in microelectronics have led to the 3DI development as a promising technological approach. 3DI offers numerous advantages: Size, power consumption, hybrid integration etc., with more thermal problems and physical complexity as trade-offs. We open this work by presenting the design and testing of an example 3DI system, to our knowledge the first self-powering system in a three-dimensional SOI technology. The system uses ambient optical energy harvested by a photodiode array and stored in an integrated capacitor. An on-chip metal interconnect network, beyond its designed role, behaves as a parasitic load vulnerable to electromagnetic coupling. We have developed a spatially-dependent, transient Green's Function based method of calculating the response of an interconnect network to noise. This efficient method can model network delays and noise sensitivity, which are involved problems in both planar and especially in 3DICs. Three-dimensional systems are more susceptible to thermal problems, which also affect VLSI with high power densities, of complex systems and under extreme temperatures. We analytically and experimentally investigate thermal effects in ICs. We study the effects of non-uniform, non-isotropic thermal conductivity of the typically complex IC material system, with a simulator we developed including this complexity. Through our simulations, verified by experiments, we propose a method of cooling or directionally heating IC regions. 3DICs are suited for developing wireless sensor networks, commonly referred to as ``smart dust.'' The ideal smart dust node includes RF communication circuits with on-chip passive components. We present an experimental study of on-chip inductors and transformers as integrated passives. We also demonstrate the performance improvement in 3DI with its lower capacitive loads. 3DI technology is just one example of the intense development in today's electronics, which maintains the need for educational methods to assist student recruitment into technology, to prepare students for a demanding technological landscape, and to raise societal awareness of technology. We conclude this work by presenting three electrical engineering curricula we designed and implemented, targeting these needs among others.