Thesis (M.A.)--University of Wisconsin, 1928. / Typescript (photocopy). eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (p. 81-82).

Thesis (Ph.D.)--Drexel University, 2010. / Includes abstract and vita. Includes bibliographical references (leaves 91-92).

Thesis (Ph. D.)--Management, Georgia Institute of Technology, 2007. / Khorana Ajay, Committee Chair ; Clarke Jonathan, Committee Member ; Li haizheng, Committee Member ; Jayaraman Narayan, Committee Member ; Eun Cheol, Committee Member.

No description available.

In particle image velocimetry (PIV) the measurement signal is contained in the recorded intensity of the particle image pattern superimposed on a variety of noise sources. The inherent amount of signal mutual information between consecutive images governs the strength of the resulting PIV cross correlation and ultimately the accuracy and uncertainty of the produced PIV measurements. Hence we posit that the correlation signal-to-noise-ratio (SNR) metrics calculated from the correlation plane can be used to quantify the quality of the correlation and the resulting uncertainty of an individual measurement. A new SNR metric termed "mutual information" (MI) which quantifies the amount of common information (particle pattern) between two consecutive images is also introduced and investigated. This measure provides a direct estimation of the apparent NIFIFO parameter of an image pair providing an alternative approach towards uncertainty estimation but also connecting the current development to one of the most fundamental principles of PIV and the previous established theory. We extend the original work by Charonko and Vlachos and present a framework for evaluating the correlation strength using a set of different metrics, which in turn are used to develop models for uncertainty estimation. Several corrections have been applied in this work. The metrics and corresponding models presented herein are expanded to be applicable to both standard and filtered correlations by applying a subtraction of the minimum correlation value to remove the effect of the background image noise. In addition, the notion of a "valid" measurement is redefined with respect to the correlation peak width in order to be consistent with uncertainty quantification principles and distinct from an "outlier" measurement. Finally the type and significance of the error distribution function is investigated. These advancements lead to robust uncertainty estimation models, which are tested against both synthetic benchmark data as well as actual experimental measurements. In this work, U68.5 uncertainties are estimated at the 68.5% confidence level while U95 uncertainties are estimated at 95% confidence level. For all cases the resulting calculated coverage factors approximate the expected theoretical confidence intervals thus demonstrating the applicability of these new models for estimation of uncertainty for individual PIV measurements. / Master of Science

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Yes / The present work investigates the operation performance of 2-element configuration multiple input Multiple Output (MIMO) antennas system using Cylindrical Dielectric Resonator (CDR). The MIMO antenna arrays achieve 22.2% impedance bandwidth at S11 ≤ -10 covering the bandwidth from 10GHz to 12.5GHz that meets the essential requirements of wide band communications applications. The first array gives a maximum isolation of 27dB at an element spacing of 22mm, whereas the second array presents a maximum isolation of 42.55dB at element spacing of 12.25mm.

<p>Previous studies in mutual funds were focused mainly on the US market. The general belief is thatmutual funds in average cannot outperform the market. We decided to test this theory in the lessstudied markets of equity funds in Sweden and Germany. Another controversial point is fees inmutual funds. Therefore we will give an overview of fees in both markets, and analyze the relationbetween fees and performance.This study analyzes the Swedish and the German mutual funds market. For the German market,funds with domicile in Germany and abroad are analyzed separately in order to examine possibledifferences between funds with a domestic domicile, and funds domiciled abroad.1285 funds performances covering period of 2000-2008 were calculated using Jensen’s Alphameasure. The results showed that all funds have on average negative alphas. Approximately 20% offunds in the German market and 12% of the funds in the Swedish market have significantlynegative performance.Regarding fees, there is only a small difference between funds in the German and the Swedishmarket in general, while the difference between funds domiciled in Germany and Luxembourg wassignificantly bigger.Our analysis of the relation between fees and performance showed no significant relationship.</p>

Previous studies in mutual funds were focused mainly on the US market. The general belief is thatmutual funds in average cannot outperform the market. We decided to test this theory in the lessstudied markets of equity funds in Sweden and Germany. Another controversial point is fees inmutual funds. Therefore we will give an overview of fees in both markets, and analyze the relationbetween fees and performance.This study analyzes the Swedish and the German mutual funds market. For the German market,funds with domicile in Germany and abroad are analyzed separately in order to examine possibledifferences between funds with a domestic domicile, and funds domiciled abroad.1285 funds performances covering period of 2000-2008 were calculated using Jensen’s Alphameasure. The results showed that all funds have on average negative alphas. Approximately 20% offunds in the German market and 12% of the funds in the Swedish market have significantlynegative performance.Regarding fees, there is only a small difference between funds in the German and the Swedishmarket in general, while the difference between funds domiciled in Germany and Luxembourg wassignificantly bigger.Our analysis of the relation between fees and performance showed no significant relationship.

Abstract Mutual fund, which has become a popular domestic investment tool possess a lot of advantages. However, how on earth investors could choose the fund that worth investing is often confusing. This research begins from the qualities of mutual fund itself and it¡¦s manager. I¡¦ll discuss the influence that the type of fund, achievement in the past, scale of fund, turnover rate, risks and investors¡¦ age, sex, schooling record and experiences would have on its achievement. Hoping through these different sides of thinking would provide a direction for investors when choosing Mutual fund. This research was done in the period from January, 1997 to January, 2002, after excluding some of the survivorship bias, we sift through the whole information in the five years, and we acquire 59 open type that would be used as sample fund in this research. We adopt Jensen-performance-estimated model and 4-factor model as achievement measure standard. By setting tests of Pearson Correlation Coefficients and Durbin-Watson, plus OLS, we estate mate Jensen-performance-estimated model and 4-factor model, and the result of its alpha would be cross-analyzed with the multiple linear regression model, thus we¡¦ll clearly see the relation of quality between mutual fund and their managers. Before going on the cross-analysis, in order to seek for the best estimating method, we test heteroscedasticity by residual pattern and Breusch-Pagan Test. Since it comes out there is no heteroscedasticity, we still conduct the process by OLS to observe how the relation between the qualities of mutual fund itself and that of managers will affect on fund achievement. We found 4-factor model is more convincing among all other achievement evaluation model though the results vary from types of model. In the achievement index, a positive and remarkable difference type of fund is from Jensen index,, which coincided with Dahlquist, Engstrom, and Soderlind(2000)¡BJia-ling Hong(2000). Under 4-factor model, global fund and region ones appear obvious negative related, but high-tech types and general are not convincing at all. Besides, the influence of reward in the past and the scale of it shows the conclusion that two model are related positively in achievement side of short and long term, but negative in scale. Moreover, the risks can¡¦t explain the achievement difference, and turnover-rate doesn¡¦t affect achievement directly, the outcome coincided with the prove of Ippolito(1989) . Finally, which this research shows that the types results vary from managers personal qualities, but most of them can¡¦t explain the achievement differences. We only catch that under Jensen index, managers who get their MBA degree abroad tends to have positive relation in achievement of fund.