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- Title
- HIGH YIELD ASSEMBLY AND ELECTRON TRANSPORT INVESTIGATION OF SEMICONDUCTING-RICH LOCAL-GATED CARBON NANOTUBE FIELD EFFECT TRANSISTORS.
- Creator
-
Kormondy, Kristy, Khondaker, Saiful, University of Central Florida
- Abstract / Description
-
Single-walled carbon nanotubes (SWNTs) are ideal for use in nanoelectronic devices because of their high current density, mobility and subthreshold swing. However, assembly methods must be developed to reproducibly align all-semiconducting SWNTs at specific locations with individually addressable gates for future integrated circuits. We show high yield assembly of local-gated semiconducting SWNTs assembled via AC-dielectrophoresis (DEP). Using individual local gates and scaling the gate oxide...
Show moreSingle-walled carbon nanotubes (SWNTs) are ideal for use in nanoelectronic devices because of their high current density, mobility and subthreshold swing. However, assembly methods must be developed to reproducibly align all-semiconducting SWNTs at specific locations with individually addressable gates for future integrated circuits. We show high yield assembly of local-gated semiconducting SWNTs assembled via AC-dielectrophoresis (DEP). Using individual local gates and scaling the gate oxide shows faster switching behavior and lower power consumption. The devices were assembled by DEP between prefabricated Pd source and drain electrodes with a thin Al/Al2O3 gate in the middle, and the electrical characteristics were measured before anneal and after anneal. Detailed electron transport investigations on the devices show that 99% display good FET behavior, with an average threshold voltage of 1V, subthreshold swing as low as 140 mV/dec, and on/off current ratio as high as 8x105. Assembly yield can also be increased to 85% by considering devices where 2-5 SWNT bridge the gap between source and drain electrode. To examine the characteristics of devices bridged by more than one SWNT, similar electron transport measurements were taken for 35 devices with electrodes bridged by 2-3 SWNT and 13 devices connected by 4-5 SWNT. This high yield directed assembly of local-gated SWNT-FETs via DEP may facilitate large scale fabrication of CMOS compatible nanoelectronic devices.
Show less - Date Issued
- 2011
- Identifier
- CFH0003841, ucf:44705
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0003841
- Title
- THE UNIVERSAL DESIGN PARADIGM: AN EXAMINATION OF REAL-TIME, C-PRINT, MEANING-FOR-MEANING TRANSCRIPTION AND INDIVIDUAL DIFFERENCES IN LEARNING.
- Creator
-
Boone, Amanda, Sims, Valerie, University of Central Florida
- Abstract / Description
-
The intent of this thesis is to guide further research and discussion of C-Print, meaning-for-meaning transcription and its applications to today's dynamic classroom settings under a Universal Design Paradigm. Evidence suggests that providing these captions can benefit Deaf and Hard of Hearing populations and also that concise, textual representations of information increase retention for average learners in multimedia settings. Individual differences were considered and low internal control...
Show moreThe intent of this thesis is to guide further research and discussion of C-Print, meaning-for-meaning transcription and its applications to today's dynamic classroom settings under a Universal Design Paradigm. Evidence suggests that providing these captions can benefit Deaf and Hard of Hearing populations and also that concise, textual representations of information increase retention for average learners in multimedia settings. Individual differences were considered and low internal control participants did significantly better on exams when material was captioned compared to when it was not. They also tended to outperform high internal control participants on captioned material exams.
Show less - Date Issued
- 2014
- Identifier
- CFH0004556, ucf:45223
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004556
- Title
- Investigating the Role of Cognitive Load in Synthetic Learning Environments for Training.
- Creator
-
Goh, Joelene, Bowers, Clint, Barber, Daniel, Jex, Steve, University of Central Florida
- Abstract / Description
-
Ensuring effectiveness of training programs has been a dominant theme in the training industry, and is constantly evolving with the steady incorporation of emerging technology. This field study offers an investigation into the intersection between the applied and research world, and examines the practicality of recommended best practices for implementing synthetic learning environments (SLEs) in the military. Specifically, cognitive load has been identified as a significant factor in...
Show moreEnsuring effectiveness of training programs has been a dominant theme in the training industry, and is constantly evolving with the steady incorporation of emerging technology. This field study offers an investigation into the intersection between the applied and research world, and examines the practicality of recommended best practices for implementing synthetic learning environments (SLEs) in the military. Specifically, cognitive load has been identified as a significant factor in influencing the effectiveness of training programs. Research on this topic has focused on utilizing the affordances of SLEs to decrease cognitive load imposed by the material and system in order to allow for more cognitive resources to be allocated towards schema construction and automation. Therefore, this study was derived from a need to ensure that the introduction of SLEs into training programs did not hinder learning or training transfer by comparing the performance outcome measures from two SLEs, Virtual BattleSpace 3 (VBS3) and the Military OpenSimulator Enterprise Strategy (MOSES). Based on concepts of cognitive load, it was possible that any group differences could be explained by the varying levels of cognitive load imposed by either system. Furthermore, the specific system could influence the strength of the effect of cognitive load on performance measures. A conditional process analysis model was constructed from the theorized relationships, and the bootstrap method was used to analyze the model. Research findings indicated no support, and discussions delved into possible explanations for results of the study, limitations, and recommendations for future research. While the analyses were nonsignificant, this was the first study investigating the difference between the VBS3 and MOSES platform, and indicated no difference in impacting performance. Additionally, because MOSES is a free, open source platform, this study could support industries that are looking for cost-effective methods to expand training programs in the direction of SLEs.
Show less - Date Issued
- 2018
- Identifier
- CFE0007007, ucf:52031
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007007
- Title
- Fundamental core effects in Co-Cr-Fe-Ni based high entropy alloys.
- Creator
-
Mehta, Abhishek, Sohn, Yongho, Coffey, Kevin, Kushima, Akihiro, Jiang, Tengfei, Stolbov, Sergey, University of Central Florida
- Abstract / Description
-
High entropy alloys (HEAs) are near equiatomic multi-principal-element-alloys (MPEAs) which are different from traditional solvent-based multicomponent alloys. Based on initial work by Yeh and Co-workers, they were proposed to exhibit four (")core(") effects: high entropy, sluggish diffusion, lattice distortion, and cocktail effect. Present work investigates two of the four (")core(") effects, i.e. high entropy and sluggish diffusion effects, in Co-Cr-Fe-Ni based transition metal high entropy...
Show moreHigh entropy alloys (HEAs) are near equiatomic multi-principal-element-alloys (MPEAs) which are different from traditional solvent-based multicomponent alloys. Based on initial work by Yeh and Co-workers, they were proposed to exhibit four (")core(") effects: high entropy, sluggish diffusion, lattice distortion, and cocktail effect. Present work investigates two of the four (")core(") effects, i.e. high entropy and sluggish diffusion effects, in Co-Cr-Fe-Ni based transition metal high entropy alloys. Solid-to-solid diffusion couple approach was adopted to investigate, these core effects. Experimental results contradicts the (")high entropy(") effect based on thermodynamics analysis: that the HEAs with low entropy of mixing may be thermodynamically more stable than the HEA of similar constituent elements with high entropy of mixing. In such cases, enthalpy of mixing can also play a vital role in stabilizing the HEA with lower entropy of mixing. Measurement of diffusion coefficients (i.e. both interdiffusion and tracer diffusion coefficients) in HEAs and its comparison with conventional solvent-based multicomponent alloys suggests that diffusion is not always sluggish in high entropy alloys. Contrary to previous findings, larger fluctuations in lattice potential energy (LPE) of an alloy may not always result in anomalously slow diffusion, in comparison to alloy systems which exhibits smaller fluctuation in LPE. Findings from his dissertation provide a (")controversial(") understanding of high entropy alloys, and alloy development strategies in the future for the most aggressive applications such as those found in gas turbines and nuclear reactors. As these applications will certainly require the knowledge of high temperature stability and nature of diffusion under extreme application environment.
Show less - Date Issued
- 2019
- Identifier
- CFE0007501, ucf:52645
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007501
- Title
- The relationship between team role sub-dimensions, personality, and team effectiveness.
- Creator
-
Howell, Ryan, Burke, Shawn, Bowers, Clint, Driskell, James, University of Central Florida
- Abstract / Description
-
A manned mission to Mars would be the longest manned mission (both by distance and duration) to date by a considerable margin. Such a mission poses a unique set of challenges to astronaut teams, including extreme levels of isolation and confinement never before experienced by Earth-bound teams. A crucial step in ensuring the team will arrive back on Earth safely is selecting those individuals who are most apt for the job. To facilitate the selection process and development of countermeasures,...
Show moreA manned mission to Mars would be the longest manned mission (both by distance and duration) to date by a considerable margin. Such a mission poses a unique set of challenges to astronaut teams, including extreme levels of isolation and confinement never before experienced by Earth-bound teams. A crucial step in ensuring the team will arrive back on Earth safely is selecting those individuals who are most apt for the job. To facilitate the selection process and development of countermeasures, this work (as part of a larger NASA research grant) involves examining the relationship between personality (Big 5; openness, conscientiousness, extraversion, agreeableness, emotional stability) and the team role sub-dimensions, which are defined as patterns of behavior which comprise team roles, of sociability, task orientation, and dominance. Additionally, I will also examine to what extent enacting team roles (e.g., 'Critic', 'Entertainer', 'Team Player', etc.) ensures mission success, such that more effective teams will distribute team roles as needed. The data for this project was derived from NASA's HERA (Human Exploration Research Analog), a study environment meant to simulate long-duration space exploration missions. In addition to presenting hypotheses and data analyses, implications and future steps will also be addressed.
Show less - Date Issued
- 2018
- Identifier
- CFE0007194, ucf:52276
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007194
- Title
- TUNNELING CONDUCTANCE CHARACTERIZATION OF A QUANTUM DOT IN THE FRACTIONAL QUANTUM HALL REGIME.
- Creator
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Willard, Douglas, Johnson, Michael, University of Central Florida
- Abstract / Description
-
This work represents a first-principles calculation of the electron tunneling current into quantum dots in the fractional quantum Hall effect regime. The system under consideration consists of an idealized Scanning Tunneling Microscope (STM) tip and a quantum dot with disk geometry and interacting electrons in a transverse magnetic field. Within the context of this model the tunneling current between the STM tip and the dot is examined for spin-polarized electrons at and around a filling...
Show moreThis work represents a first-principles calculation of the electron tunneling current into quantum dots in the fractional quantum Hall effect regime. The system under consideration consists of an idealized Scanning Tunneling Microscope (STM) tip and a quantum dot with disk geometry and interacting electrons in a transverse magnetic field. Within the context of this model the tunneling current between the STM tip and the dot is examined for spin-polarized electrons at and around a filling factor of 1/3. The current expression is based on a second-quantized Hamiltonian in which electrons in the dot are interacting, confined, and restricted to the lowest Landau level, necessary to capture the physics of the fractional quantum Hall effect. The Hamiltonian includes simple approximations for the STM tip and the tip-dot tunneling. An exact analytic expression for the first-order tunneling current is derived using a Green's function approach. To calculate the tunneling current numerically the infinite Hilbert space of the dot is truncated to have a finite dimension within the lowest Landau level. This simplification is appropriate for a low temperature system in the fractional quantum Hall regime because of the finite size of the quantum dot and the large energy gap between Landau levels. The tunneling current is then solved in two steps. First, many-electron energy eigenstates are calculated from the truncated Hamiltonian by numerical diagonalization. This is carried out for varying numbers of electrons N. The energy eigenstates form a set of complete basis states of the system and are used in the expression for the tunneling current. In the second step, the chemical potential in the dot is chosen to select a desired number of electrons and the tunneling current evaluated. We have carried out this program for filling factors near 1/3 while modulating the system parameters of interest to determine functional dependencies.
Show less - Date Issued
- 2011
- Identifier
- CFE0003990, ucf:48677
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003990
- Title
- A Study of the Master of Education in Educational Leadership Program at the University of Central Florida: Standards Alignment and Student Perceptions.
- Creator
-
Santostefano, Vickie, Murray, Barbara, Murray, Kenneth, Doherty, Walter, Hutchinson, Cynthia, University of Central Florida
- Abstract / Description
-
This study was conducted to determine the effectiveness of the University of Central Florida's Master's Program in Educational Leadership. This study was a mixed mode study which used archival data, survey data, interviews, and Florida Educational Leadership Examination results. Research questions were developed to address how course content in the University of Central Florida's Master of Education in Educational Leadership Program aligned with the following standards and competencies: (a)...
Show moreThis study was conducted to determine the effectiveness of the University of Central Florida's Master's Program in Educational Leadership. This study was a mixed mode study which used archival data, survey data, interviews, and Florida Educational Leadership Examination results. Research questions were developed to address how course content in the University of Central Florida's Master of Education in Educational Leadership Program aligned with the following standards and competencies: (a) the National Council for the Accreditation of Teacher Education (NCATE/Educational Leadership Constituent Council (ELCC), (b) the Interstate School Leader Licensure Consortium (ISLLC), (c) the Florida Educator Accomplished Practices (FEAPS), (d) the Florida Principal Leadership Standards (FPLS), and (e) the Florida Educational Leadership Examination (FELE). Graduates' perceptions of the University of Central Florida's Master of Education in Educational Leadership Program and results of Florida Educational Leadership examination results for 2009-2012 were analyzed.Courses were found to meet all standards very well. There were a few standards that were not addressed directly in syllabi. Faculty interviews, however, revealed content was addressed in the actual coursework. Students, overall, were positive in their survey responses as to their satisfaction with the program. Finally, UCF students' FELE scores greatly exceeded the state average for all students, indicating that the UCF Educational Leadership courses and experiences were effective in preparing students for this examination.
Show less - Date Issued
- 2013
- Identifier
- CFE0004929, ucf:49605
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004929
- Title
- Three essays on the marketing strategies of a durable goods manufacturer.
- Creator
-
Chau, Ngan, Desiraju, Ramarao, Krishnamoorthy, Anand, Joshi, Amit, Chintagunta, Pradeep, University of Central Florida
- Abstract / Description
-
When purchasing durable goods, consumers not only pay for current but also future consumption; consequently, forward looking behavior is an important consideration in durable goods markets. For example, anticipating that prices will go down in the future, consumers may delay the purchase today; such behavior has a significant impact on the firm's marketing strategies. This dissertation investigates the impact of durability on two marketing strategies: new product introductions and supply...
Show moreWhen purchasing durable goods, consumers not only pay for current but also future consumption; consequently, forward looking behavior is an important consideration in durable goods markets. For example, anticipating that prices will go down in the future, consumers may delay the purchase today; such behavior has a significant impact on the firm's marketing strategies. This dissertation investigates the impact of durability on two marketing strategies: new product introductions and supply chain design. The first part of this dissertation (Chapter 3) examines a durable goods manufacturer's new product introduction strategy under different market environments where network effects and product compatibility are important. More specifically, this part explores the incentives of a firm to use either a replacement strategy or a skipping strategy---in the former, the firm commercializes the existing technology, while in the latter, it does not; in either case, an improved technology will be available in the future and the firm will introduce a new product at that time. Using a two-period analytical model with network effects, the analysis shows how the level of improvement in the new product, along with the type of compatibility between the products, interacts with network strength to determine the manufacturer's optimal strategy. Under gradual new product improvement, there is a strict preference for replacement. In contrast, under rapid new product improvement, that preference only holds in markets with relatively high levels of the network strength; at lower levels of the network strength, skipping is preferred; interestingly, for moderate values of the network strength, the level of product improvement affects the manufacturer's optimal choice differently under varying types of compatibility.The second part of this dissertation (Chapters 4 and 5) focuses on the supply chain design decisions of a durable goods manufacturer who is a sole supplier of an essential proprietary component for making the end product. Three different supply chain structures are considered. In the first, the manufacturer operates as a ``component supplier'' and sells the component to a downstream firm who then makes the end product. In the second structure, the manufacturer produces the end product using its component but does not make that component available to any other firms; here, the manufacturer operates as a ``sole entrant''. Finally, the manufacturer can operate as a ``dual distributor'' who not only makes the end product using its own component, but sells the component to a downstream firm who then competes against the manufacturer in the end product market.The extant literature on the optimal choice among the above supply chain structures has focused mainly on static settings in a framework of price competition. By contrast, researchers predominantly use quantity competition to examine durable goods markets in dynamic (i.e., multiple time period) settings. Moreover, the literature notes diversity in optimal firm behavior under the two types of (i.e., price and quantity) competition. Therefore, to transition from supply chain design in a static setting to a more dynamic one where consumers are forward-looking, this part utilizes Chapter 4 to analyze the manufacturer's choice using quantity competition in a static setting. This analysis (in Chapter 4) identifies precisely the shift in the manufacturer's choice of supply chain structure when moving from price competition to a quantity competition framework. With that analysis as a benchmark, the next chapter focuses on the manufacturer's choice in a dynamic setting. More specifically, Chapter 5 investigates the impact of durability on the optimality of the supply chain structures identified above. Using a two period setting, the analysis explores how the manufacturer's preference for different supply chain structures is modified. The findings reveal that, e.g., when durability is taken into account, the manufacturer's preference for the sole entrant role goes up, while the preference for the component supplier role goes down. Further, under certain conditions, the manufacturer may opt to be a dual distributor in the first period and then choose to become only a component supplier in the second period. The underlying rationale for such shifts in preference is directly linked to durability, which creates future competition and substantially reduces the manufacturer's profitability in the long run. Interestingly, this negative impact varies across different supply chain structures.Overall, this dissertation contributes to the current literature on durable goods and enhances our understanding of the impact of durability on the optimality of distinct marketing strategies, and provides insights that are valuable to both academics and managers.
Show less - Date Issued
- 2012
- Identifier
- CFE0004364, ucf:49428
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004364
- Title
- COMPETITIVE ACTIONS OF NEW TECHNOLOGY FIRMS: THE RED QUEEN EFFECT AND NEW FIRM PERFORMANCE.
- Creator
-
Porter, Robert, Ford, Cameron, University of Central Florida
- Abstract / Description
-
The competitive strategy used by a new firm may be the most important strategy it ever employs (Covin & Slevin, 1989; Ferrier, 2001). A well-chosen and executed firm strategy is essential for a firm to realize its potential competitive advantage (Porter, 1981). A firmÃÂ's strategic intent and resulting competitive actions are especially important when firms are new and vulnerable as they strive to learn which strategic actions help them adapt to their rivals actions and...
Show moreThe competitive strategy used by a new firm may be the most important strategy it ever employs (Covin & Slevin, 1989; Ferrier, 2001). A well-chosen and executed firm strategy is essential for a firm to realize its potential competitive advantage (Porter, 1981). A firmÃÂ's strategic intent and resulting competitive actions are especially important when firms are new and vulnerable as they strive to learn which strategic actions help them adapt to their rivals actions and to their environment (Stinchcombe, 1965). Further, the competitive actions that new firms choose to take with rival firms affects the overall competitive dynamics of their industry (Smith, Ferrier, and Ndofor, 2001). One way to explore how the competitive actions of new firms affect their future is to capture and examine their individual competitive moves and countermoves over time (Smith, Grimm, Gannon, & Chen, 1991). Red Queen competition is a particular form of competitive dynamics that is well-suited to explore these issues of new rival firms (Barnett, 2008). Barnett and Sorenson (2002) suggested that competition and learning reinforce one another as organizations develop, and this is what van Valen (1973) referred to as the ÃÂ'Red Queen.ÃÂ' This definition of the Red Queen led to the development of the concept of Red Queen competition and the Red Queen effect. The competitive strategies these new firms use to obtain resources as they adapt, in particular how these firms compete and or cooperate, are key competitive strategies that remain understudied to-date (Amit, Glosten, and Muller, 1990). I explore Red Queen competition, and the ensuing Red Queen Effect, in a complex environmental setting that represents a high technology ecosystem (Arned, 1996, 2010; Iansiti & Levien, 2004a, 2004b; Moore, 1993; Pierce, 2009). New firms in such an ecosystem represent a particularly salient combination of type of firm, firm lifecycle period, and firm environment to examine strategic actions since these firms comprise a significant portion of the high-growth and future of our global economy (Stangler, 2010). Further, due to their need to rapidly adapt in a complex ecosystem, these firms rely heavily on short-lived information resources for competitive advantage (Barney, 1991; Nelson and Winter, 1982; Omerzel, 2008). To place this research in context, I consider the moderating effects of key environmental ecosystem resource conditions (Dess & Beard, 1984; Miller & Friesen, 1983; Sharfman & Dean, 1991). Empirical studies to-date have yielded mixed results and left unanswered questions about the basic components and the effects of Red Queen competition. To address these issues I explore this literature in chapter one of the dissertation, and in chapter two I develop a theoretical model of Red Queen competition that draws on the available empirical and theoretical literature to-date. Due to the mixed finding from the empirical results, I develop a precise agent-based simulation model of Red Queen competition in chapter three to facilitate data collection. Using this data I test a series of hypotheses designed to explore the fundamentals of Red Queen competition, specifically how escalating competitive activity for resources among new firms impacts their survival and performance. In addition, the moderating effect of environmental changes on Red Queen competition is also tested to explore the affect of context on Red Queen competition. Chapter four explains the findings from these hypotheses, future research directions, implications and limitations from the research, and my concluding thoughts.
Show less - Date Issued
- 2010
- Identifier
- CFE0003452, ucf:48389
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003452
- Title
- THE EFFECTS OF TRANSFORMATIONAL LEADERSHIPON EMPLOYEESÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ' PERCEIVED LEADERSHIP EFFECTIVENESSIN PUBLIC ORGANIZATIONS: FEDERAL EMERGENCY MANAGEMENT AGENCY CASE.
- Creator
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KARACA, HASAN, KAPUCU, NAIM, University of Central Florida
- Abstract / Description
-
As the capacity of public leaders to bring about change is increasingly questioned, public agencies have come under pressure to transform and innovate. More research is needed to identify how leaders who promote innovation, creativity, and adaptability affect the performance of public organizations. Constant improvement of organizations and individuals encourages leaders to innovate, evaluate risks as opportunities, and tackle the status quo. This raises the significance of how...
Show moreAs the capacity of public leaders to bring about change is increasingly questioned, public agencies have come under pressure to transform and innovate. More research is needed to identify how leaders who promote innovation, creativity, and adaptability affect the performance of public organizations. Constant improvement of organizations and individuals encourages leaders to innovate, evaluate risks as opportunities, and tackle the status quo. This raises the significance of how transformational leadership contributes to organizational performance and reacts to public agenciesÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ' environment, and how it might reorganize them. The present study examines the relationship between transformational leadership behaviors and perceived leadership effectiveness in public organizations, particularly Federal Emergency Management Agency (FEMA). The study specifically focuses on FEMA as an independent agency and as an agency under the Department of Homeland Security. It also measures transformational leadership behaviors and explores how they relate to public employeesÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ' perceptions of leadership effectiveness as reported by the 2002, 2006, and 2008 Federal Human Capital Surveys (FHCS). Confirmatory factor analysis was conducted to validate the construct validity for the perceived leadership effectiveness measurement model. Structural equation modeling was conducted to examine the study hypotheses. This study has found that transformational leadership behaviorsÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ--idealized influence, intellectual stimulation, and inspirational motivationÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ-- all have a significant relationship with perceived leadership effectiveness. Each dimension of transformational leadership has a positive effect on employeesÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ' perceptions of leadership effectiveness, with intellectual stimulation having the highest effect. The standardized regression weights of exogenous variables are: .24 for idealized influence, .48 for intellectual stimulation, and .29 for inspirational motivation. Overall, these predictor variables accounted for 86% of the variance in perceived leadership effectiveness. Findings of the study reveals several organizational, managerial, and policy implications relating to increasing the effects of transformational leadership behaviors on employeesÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ' perceived leadership effectiveness and organizational performance. The study points out the significance of communication and information sharing, and providing sufficient opportunities to do a better job in public organizations. The findings also confirm that the leaders are required to obtain inspirational motivation behaviors and use them to give a feeling of personal empowerment to the employees.
Show less - Date Issued
- 2010
- Identifier
- CFE0003397, ucf:48421
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003397
- Title
- THE RELATIONSHIP BETWEEN COUNSELOR HOPE AND OPTIMISM ON CLIENT OUTCOME.
- Creator
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Muenzenmeyer, Michelle, Young, Mark, University of Central Florida
- Abstract / Description
-
The counselor is an important contributor to client outcome. Research findings about therapist effects are mixed. In this study positive psychology variables, hope and optimism, were evaluated with client outcome. The sample for this study consisted of 43 graduate-level counselor trainees in the first or second practicum semester and their adult clients in a university's community counseling clinic. Results revealed no statistically significant relationships between student counselors' hope...
Show moreThe counselor is an important contributor to client outcome. Research findings about therapist effects are mixed. In this study positive psychology variables, hope and optimism, were evaluated with client outcome. The sample for this study consisted of 43 graduate-level counselor trainees in the first or second practicum semester and their adult clients in a university's community counseling clinic. Results revealed no statistically significant relationships between student counselors' hope and optimism and client outcomes. Post hoc analysis of student hope and their post-graduation expectations, revealed statistically significant relationships. Implications for counselor educators are presented along with areas for future research.
Show less - Date Issued
- 2011
- Identifier
- CFE0003884, ucf:48747
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003884
- Title
- A Short Window Granger Causality Approach to Identify Brain Functional Pattern Associated with Changes of Performance Induced by Sleep Deprivation.
- Creator
-
Li, Muyuan, Karwowski, Waldemar, Xanthopoulos, Petros, Hancock, Peter, Mikusinski, Piotr, University of Central Florida
- Abstract / Description
-
The comprehensive effect of sleep deprivation on biological and behavioral functions largely remains unknown. There is evidence to support that human sleep must be of sufficient duration and physiological continuity to ensure neurocognitive performance while we are waking. Insufficient sleep would lead to high risk of human-error related to accidents, injuries or even fatal outcomes. However, in modern society, more and more people suffer from sleep deprivation because of the increasing...
Show moreThe comprehensive effect of sleep deprivation on biological and behavioral functions largely remains unknown. There is evidence to support that human sleep must be of sufficient duration and physiological continuity to ensure neurocognitive performance while we are waking. Insufficient sleep would lead to high risk of human-error related to accidents, injuries or even fatal outcomes. However, in modern society, more and more people suffer from sleep deprivation because of the increasing social, academic or occupational demand. It is important to study the effect of sleep deprivation, not only on task performance, but also on neurocognitive functions. Recent research that has explored brain effective connectivity has demonstrated the directed inference interaction among pairs of brain areas, which may bring important insight to understand how brain works to support neurocognitive function. This research aimed to identify the brain effective connectivity pattern associated with changes of a task performance, response time, following sleep deprivation. Experiments were conducted by colleagues at Neuroergonomics Department at Jagiellonian University, Krakow, Poland. Ten healthy young women, with an average age of 23-year-old, performed visual spatial sustained-attention tasks under two conditions: (1) the rest-wakeful (RW) condition, where participants had their usual sleep and (2) the sleep-deprived (SD) condition, where participants had 3 hours less sleep than their usual sleep, for 7 nights (amounting to 21 h of sleep debt).Measures included eye tracking performance and functional magnetic resonance imaging (fMRI). In each condition, each subject's eye-position was monitored through 13 sessions, each with 46 trials, while fMRI data was recorded. There were two task performance measures, accuracy and response time. Accuracy measured the proportion of correct responses of all trials in each session. Response time measured the average amount of milliseconds until participants gazed at the target stimuli in each session. An experimental session could be treated as a short window. By splitting long trials of fMRI data into consecutive windows, Granger causality was applied based on short trials of fMRI data. This procedure helped to calculate pairwise causal influences with respect to time-varying property in brain causal interaction. Causal influence results were then averaged across sessions to create one matrix for each participant. This matrix was averaged within each condition to formulate a model of brain effective connectivity, which also served as a basis of comparison. In conclusion, significant effect of sleep deprivation was found on response time and brain effective connectivity. In addition, the change of brain effective connectivity after sleep deprivation was linked to the change of response time. First, an analysis of variance (ANOVA) showed significant difference for response time between the RW condition and the SD condition. No significant changes for accuracy were found. A paired t-test showed that response time was significantly shorter in sleep deprivation for the visual spatial sustained-attention task. Second, Granger causality analysis demonstrated a reduction of bidirectional connectivity and an increase of directed influences from low-level brain areas to high-level brain areas after sleep deprivation. This observation suggested that sleep deprivation provoked the effective connectivity engaged in salient stimuli processing, but inhibited the effective connectivity in biasing selection of attention on task and in maintaining self-awareness in day time. Furthermore, in the SD condition, attention at the visual spatial task seemed to be driven by a bottom-up modulation mechanism. Third, a relationship was found between brain effective connectivity with response time. Decreases of Granger causal influences in two directions, from medial frontal lobe to sub cortical gray nuclei and from medial parietal lobe to sub cortical gray nuclei, were associated with shorter response time in the SD condition. Additionally, an increase of Granger causal influence from medial parietal lobe to cerebellum was associated with longer response time in the SD condition.
Show less - Date Issued
- 2014
- Identifier
- CFE0005825, ucf:50922
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005825
- Title
- A Training Effectiveness Evaluation of UH-60A/L Simulated Environments: An Interdisciplinary Approach.
- Creator
-
Goodwin, Martin, Reinerman, Lauren, Szalma, James, Goldiez, Brian, Goldberg, Benjamin, University of Central Florida
- Abstract / Description
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The U.S. military continues to develop and expand its use of simulation-based aviation training. While traditional simulation-based training continues to be a proven training method, game-based simulation has become more sophisticated and may provide viable training options in some applications. The use of game-based simulation with traditional simulation-based training can potentially reduce costs, enhance return on investment, advance training objectives, and inform future training...
Show moreThe U.S. military continues to develop and expand its use of simulation-based aviation training. While traditional simulation-based training continues to be a proven training method, game-based simulation has become more sophisticated and may provide viable training options in some applications. The use of game-based simulation with traditional simulation-based training can potentially reduce costs, enhance return on investment, advance training objectives, and inform future training environment designs. Current fiscal limitations are driving the need for more efficient training methods, while operational requirements are dictating training protocols that produce optimum levels of readiness. The gap between fiscal constraints and desired training outcomes can be addressed by investigating whether lower-cost, game-based simulations may potentially augment higher-cost, traditional simulation-based training approaches for specific training tasks. Performing a valid investigation of the value of these simulation environments depends on a thorough evaluation of their training effectiveness. However, current approaches to Training Effectiveness Evaluation (TEE) do not adequately address the complete range of factors required to effectively investigate this gap. The present effort leverages research from human performance assessment, neurophenomenology, and instructional science to identify and integrate a set of empirically validated measures that contribute to training effectiveness. From this foundation, an interdisciplinary approach to performing TEEs for simulation training is introduced that addresses the shortcomings of current practices. This approach is validated in a use case involving the evaluation of U.S. Army Aviation collective training.
Show less - Date Issued
- 2017
- Identifier
- CFE0006942, ucf:51671
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006942
- Title
- Towards a Theory of Autism Spectrum Disorder Program Implementation.
- Creator
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Gesundheit, Ian, Martin, Suzanne, Vasquez, Eleazar, Boote, David, Edwards, John, University of Central Florida
- Abstract / Description
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With the increased prevalence of students qualifying for services within Autism Spectrum Disorder (ASD) programs (Odom, Cox and Brock, 2013), it is imperative that the field comes to better understand how successful programs can be replicated at scale. The implementation of effective instructional programs for students with ASD across school systems on a large scale is a difficult task. School systems have tried to replicate successful programs for diverse learners but have been largely...
Show moreWith the increased prevalence of students qualifying for services within Autism Spectrum Disorder (ASD) programs (Odom, Cox and Brock, 2013), it is imperative that the field comes to better understand how successful programs can be replicated at scale. The implementation of effective instructional programs for students with ASD across school systems on a large scale is a difficult task. School systems have tried to replicate successful programs for diverse learners but have been largely unable to do so. For students with disabilities, who perform poorly compared to their peers without disabilities (Odom et al., 2013), the need to replicate successful programs is even more pressing. This need is most pressing for students in programs for ASD whose educational outcomes lag behind those of students in programs designed for all other exceptionality categories (Cook (&) Cook, 2013). The quality with which a program is designed matters little if the fidelity with which that program is implemented is lacking. For students with disabilities who perform poorly compared to their peers without disabilities (Odom et al., 2013), the need to replicate successful programs is even more pressing. The school leader plays an important role in the development, implementation, and maintenance of effective programs for students with ASD.The purpose of this study was to document the lived experiences of school leaders who have developed and/or managed successful programs for students with ASD within their school sites. It is clear that leadership matters in school and, therefore, influences program quality (Darling-Hammond, 2010; Reeves, 2006; Waters, Marzano, (&) McNulty, 2003). School and system change is difficult work, prone to being unsuccessful(-)but improvement is possible and sustainable (Fullan, 2007).The research questions for this study were:1.What are the characteristics of a school administrator who oversees effective self-contained classroom(s) for students with ASD?2.What are the lived experiences of principals who have led teachers to implement effective classrooms for students with ASD across their school setting?3.What rewards and challenges are associated with being a school administrator with an effective exceptional education program for students with ASD?In sum, these principal participants showed an intense interest in improving support services for students with ASD. They emphasized their vision that, if given the proper support and environment, all students can succeed. The principals were diligent in supporting that vision themselves and in making connections that could help reinforce that vision. A tremendous part of supporting that vision was ensuring that staff has the appropriate skills to work effectively with students with ASD. Once success was realized in these programs, it was reinforced by the success of the students and the emotional compensation received from parents. However, leading such programs is not without its challenges. Overall, though, all of these principals were clear about setting forth a path where the schools they were leading would do what is necessary to help their students with ASD be successful.
Show less - Date Issued
- 2016
- Identifier
- CFE0006309, ucf:51586
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006309
- Title
- The Impact of Board Capital and Servant Leadership on Board Effectiveness: A Study of Florida Community Foundations.
- Creator
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Obyrne, Lauren, Kapucu, Naim, Hu, Qian, Feldheim, Mary Ann, Sowa, Jessica, University of Central Florida
- Abstract / Description
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Community foundations have considerable potential for positive social change in the communities they serve yet are understudied in nonprofit management and leadership literature. Recently, community foundations have become one of the largest avenues of organized philanthropy. The boards of community foundations frequently consist of a different composition of members than other nonprofit organizations, making a focus on individual characteristics of board members a worthwhile area of study....
Show moreCommunity foundations have considerable potential for positive social change in the communities they serve yet are understudied in nonprofit management and leadership literature. Recently, community foundations have become one of the largest avenues of organized philanthropy. The boards of community foundations frequently consist of a different composition of members than other nonprofit organizations, making a focus on individual characteristics of board members a worthwhile area of study. This exploratory study considers board capital through human capital, structural capital, and social capital and the impact this has on board effectiveness. In addition, it considers the impact of servant leadership on board effectiveness. The purpose of the study is to assess capital and leadership factors of community foundation board members and examine their influence on perceived board effectiveness. Based on survey data from 71 community foundation board members and executive directors representing 13 different community foundations associated with the Florida Philanthropic Network, the dissertation uses ordinal regression to test hypotheses. Additional data was also collected with follow up focus groups. The study finds that board capital, measured by human capital, structural capital, and social capital, as well as servant leadership, do play a factor in board effectiveness. Further, community foundation boards in the survey population are highly effective, and have unique attributes that make them distinct from other types of nonprofit boards. Follow up focus groups suggested that, although board members define board effectiveness in a number of ways, boards are creating social change within their communities in different ways. Findings have potential for significant insight on an important segment of nonprofit sector organizations, particularly for strengthening communities through philanthropy.
Show less - Date Issued
- 2016
- Identifier
- CFE0006155, ucf:51135
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006155
- Title
- Electronic Transport Investigation of Chemically Derived Reduced Graphene Oxide Sheets.
- Creator
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Joung, Daeha, Khondaker, Saiful, Chow, Lee, Leuenberger, Michael, Zhai, Lei, University of Central Florida
- Abstract / Description
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Reduced graphene oxide (RGO) sheet, a chemically functionalized atomically thin carbon sheet, provides a convenient pathway for producing large quantities of graphene via solution processing. The easy processibility of RGO sheet and its composites offer interesting electronic, chemical and mechanical properties that are currently being explored for advanced electronics and energy based materials. However, a clear understanding of electron transport properties of RGO sheet is lacking which is...
Show moreReduced graphene oxide (RGO) sheet, a chemically functionalized atomically thin carbon sheet, provides a convenient pathway for producing large quantities of graphene via solution processing. The easy processibility of RGO sheet and its composites offer interesting electronic, chemical and mechanical properties that are currently being explored for advanced electronics and energy based materials. However, a clear understanding of electron transport properties of RGO sheet is lacking which is of great significance for determining its potential application. In this dissertation, I demonstrate fabrication of high-yield solution based graphene field effects transistor (FET) using AC dielectrophoresis (DEP) and investigate the detailed electronic transport properties of the fabricated devices. The majority of the devices show ambipolar FET properties at room temperature. However, the mobility values are found to be lower than pristine graphene due to a large amount of residual defects in RGO sheets. I calculate the density of these defects by analyzing the low temperature (295 to 77K) charge transport data using space charge limited conduction (SCLC) with exponential trap distribution. At very low temperature (down to 4.2 K), I observe Coulomb blockade (CB) and Efros-Shklovskii variable range hopping (ES VRH) conduction in RGO implying that RGO can be considered as a graphene quantum dots (GQD) array, where graphene domains act like QDs while oxidized domains behave like tunnel barriers between QDs. This was further confirmed by studying RGO sheets of varying carbon sp2 fraction from 55 (-) 80 % and found that both the localization length and CB can be tuned. From the localization length and using confinement effect, we estimate tunable band gap of RGO sheets with varying carbon sp2 fraction. I then studied one dimensional RGO nanoribbon (RGONR) and found ES VRH and CB models are also applicable to the RGONR. However, in contrast to linear behavior of decrease in threshold voltage (Vt) with increasing temperature (T) in the RGO, sub linear dependence of Vt on T was observed in RGONR due to reduced transport pathways. Finally, I demonstrate synthesis and transport studies of RGO/nanoparticles (CdS and CeO2) composite and show that the properties of RGO can be further tuned by attaching the nanoparticles.
Show less - Date Issued
- 2012
- Identifier
- CFE0004785, ucf:49743
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004785
- Title
- Electronic transport and correlations in single magnetic molecule devices.
- Creator
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Romero, Javier, Mucciolo, Eduardo, Del Barco, Enrique, Stolbov, Sergey, Hernandez, Florencio, University of Central Florida
- Abstract / Description
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In this dissertation, we study the most important microscopic aspects that grant molecules such as Single Molecule Magnets (SMMs) their preferential spin direction. We do so by proposing and solving a model that includes correlations between electrons occupying atomic orbitals. In addition, we study the relation between the non-equilibrium electronic transport signatures in a SMM model weakly coupled to a three-terminal single electron transistor device, and the interference features of the...
Show moreIn this dissertation, we study the most important microscopic aspects that grant molecules such as Single Molecule Magnets (SMMs) their preferential spin direction. We do so by proposing and solving a model that includes correlations between electrons occupying atomic orbitals. In addition, we study the relation between the non-equilibrium electronic transport signatures in a SMM model weakly coupled to a three-terminal single electron transistor device, and the interference features of the SMM model in the presence of a magnetic field. Finally, we investigate the equilibrium transport features in a giant-spin model of a SMM in the Kondo regime. We study how the magnetic field modulation of the energy in a highly anisotropic molecule can affect the conductance of the molecule in the Kondo regime.
Show less - Date Issued
- 2014
- Identifier
- CFE0005407, ucf:50420
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005407
- Title
- Lateral Power MOSFETs Hardened Against Single Event Radiation Effects.
- Creator
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Shea, Patrick, Shen, Zheng, Yuan, Jiann-Shiun, Malocha, Donald, University of Central Florida
- Abstract / Description
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The underlying physical mechanisms of destructive single event effects (SEE) from heavy ion radiation have been widely studied in traditional vertical double-diffused power MOSFETs (VDMOS). Recently lateral double-diffused power MOSFETs (LDMOS), which inherently provide lower gate charge than VDMOS, have become an attractive option for MHz-frequency DC-DC converters in terrestrial power electronics applications. There are growing interests in extending the LDMOS concept into radiation-hard...
Show moreThe underlying physical mechanisms of destructive single event effects (SEE) from heavy ion radiation have been widely studied in traditional vertical double-diffused power MOSFETs (VDMOS). Recently lateral double-diffused power MOSFETs (LDMOS), which inherently provide lower gate charge than VDMOS, have become an attractive option for MHz-frequency DC-DC converters in terrestrial power electronics applications. There are growing interests in extending the LDMOS concept into radiation-hard space applications. Since the LDMOS has a device structure considerably different from VDMOS, the well studied single event burn-out (SEB) or single event gate rapture (SEGR) response of VDMOS cannot be simply assumed for LDMOS devices without further investigation. A few recent studies have begun to investigate ionizing radiation effects in LDMOS devices, however, these studies were mainly focused on displacement damage and total ionizing dose (TID) effects, with very limited data reported on the heavy ion SEE response of these devices. Furthermore, the breakdown voltage of the LDMOS devices in these studies was limited to less than 80 volts (mostly in the range of 20-30 volts), considerably below the voltage requirement for some space power applications. In this work, we numerically and experimentally investigate the physical insights of SEE in two different fabricated LDMOS devices designed by the author and intended for use in radiation hard applications. The first device is a 24 V Resurf LDMOS fabricated on P-type epitaxial silicon on a P+ silicon substrate. The second device is a much different 150 V SOI Resurf LDMOS fabricated on a 1.0 micron thick N-type silicon-on-insulator substrate with a 1.0 micron thick buried silicon dioxide layer on an N-type silicon handle wafer. Each device contains internal features, layout techniques, and process methods designed to improve single event and total ionizing dose radiation hardness. Technology computer aided design (TCAD) software was used to develop the transistor design and fabrication process of each device and also to simulate the device response to heavy ion radiation. Using these simulations in conjunction with experimentally gathered heavy ion radiation test data, we explain and illustrate the fundamental physical mechanisms by which destructive single event effects occur in these LDMOS devices. We also explore the design tradeoffs for making an LDMOS device resistant to destructive single event effects, both in terms of electrical performance and impact on other radiation hardness metrics.
Show less - Date Issued
- 2011
- Identifier
- CFE0004165, ucf:49044
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004165
- Title
- Characterization of online archives of astronomical imaging vis-(&)#224;-vis serendipitous asteroids, and their astrometric properties.
- Creator
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Denis, Jean-Marc, Fernandez, Yanga, Britt, Daniel, Schelling, Patrick, University of Central Florida
- Abstract / Description
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The identification of known asteroids on existing CCD pictures would allow us to obtain accurate astrometric and photometric asteroid properties. Some asteroids might have ambiguous orbital elements, thus their identification along with their exact positions on multiple picture frames could significantly improve their orbital elements. Furthermore, the possibility of identifying known asteroids on older pictures, sometimes preceding their discovery date, might allow the study of non...
Show moreThe identification of known asteroids on existing CCD pictures would allow us to obtain accurate astrometric and photometric asteroid properties. Some asteroids might have ambiguous orbital elements, thus their identification along with their exact positions on multiple picture frames could significantly improve their orbital elements. Furthermore, the possibility of identifying known asteroids on older pictures, sometimes preceding their discovery date, might allow the study of non-gravitational effects like the Yarkovsky effect.Identifying a potential Yarkovsky effect on asteroids is challenging because it is extremely weak. However, this effect cumulates with time, therefore, it is necessary to find astronomical pictures that are as old as possible. In addition, we need to collect high quality CCD pictures and use a methodology that would allow obtaining a statistically significant sample of asteroids. To accomplish this, we decided to use the online archive of the Subaru telescope at Mauna Kea Hawaii because it has a prime-focus camera with a very high resolution of 80 millions pixels very well suited to capture serendipitous asteroids. In addition, the Subaru online archive has pictures from the last 10 years.The methodology used in this thesis is to build a database that contains the orbital elements of all the known asteroids, allowing us to write a program that calculates the approximate position of all the asteroids at the date and time of each CCD picture we collect. To obtain a more precise position, the program also interfaces the JPL NASA Horizons on-line computation service. Every time an asteroid is found on a picture, Horizons sends its theoretical location back to the program. A later visual identification of this asteroid at this theoretical location on the picture triggers its input into our sample for further study. This method allowed us to visually confirm 508 distinct asteroids on 692 frames with an average diameter of 3.6 km. Finally, we use the theory (given in appendix A) to calculate the theoretical drift of these asteroids that we compare with the one we measured on the CCD pictures.
Show less - Date Issued
- 2012
- Identifier
- CFE0004299, ucf:49460
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004299
- Title
- Crash quality- an approach for evaluating spending on quality improvement initiatives.
- Creator
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Ferreira, Labiche, Hosni, Yasser A., Engineering
- Abstract / Description
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University of Central Florida College of Engineering Thesis; The quality movement has become popular among corporations big and small for one reason: empirical evidence suggests that quality and productivity (and hence profitability) are linked. Unfortunately, while many firms accept that quality and productivity go together, few actually track the gains associated with their quality improvement programs. Companies also tend to spend on quality improvement with no indication of estimation of...
Show moreUniversity of Central Florida College of Engineering Thesis; The quality movement has become popular among corporations big and small for one reason: empirical evidence suggests that quality and productivity (and hence profitability) are linked. Unfortunately, while many firms accept that quality and productivity go together, few actually track the gains associated with their quality improvement programs. Companies also tend to spend on quality improvement with no indication of estimation of the impact of funding on the targeted process. It would be of great value to know: (1) the impact of spending to enhance the product/process quality level, and (2) the point at which expenditures for quality improvement are not economical. This research involves modeling the quality level of a product composed of integrated components/processes and the costs associated with quality improvement. Presented in this research is a methodology for determining the point at which the target quality level is reached. This point signifies when future spending should be re-directed. The research defines this point as the "Crash Quality Point (CQP)." Cases of a single process level and double level three-stage process are modeled to conceptualize CQP. The finding from the output analysis reveal that the quality level approaches the target level at varying points in time. Any spending beyond this point does not have an impact on the quality level compared to the period prior to the Crash Quality Point. Spending past this point is futile and these funds could be spent on the quality improvement projects. The special case modeled also illustrates the use of this tool in the selection of processes for improvements based on the quality level of the process. This is an added advantage in scenarios where funds are limited and management is constrained to improve process quality with limited funds. Using a real world example validates the proposed CQP methodology. The results of the validation indicate that the model developed can assist managers in forecasting the budget requirements for quality spending based on the quality improvement goals. The tool also enables managers to estimate the point in time at which allocations of funds may be directed for process reengineering. The CQP method will enable quality improvement professionals to determine the economical viability and the limits in expenditures on quality improvement. It enables managers to evaluate spending alternatives and approximate when the point of diminishing return is reached.
Show less - Date Issued
- 2000
- Identifier
- CFR0011594, ucf:53046
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0011594