Thesis (Ph. D.)--Illinois State University, 2004. / Title from title page screen, viewed May 23, 2006. Dissertation Committee: Cynthia W. Langrall (chair), Roger P. Day, Edward S. Mooney, Michael J. Plantholt. Includes bibliographical references (leaves 122-126) and abstract. Also available in print.

Zugl.: Köln, Universiẗat, Dipl.-Arbeit, 1984.

[pt] Este trabalho é um estudo sobre a controvérsia que circunda a expressão zero elevado a zero. Como o objetivo de contextualizar o foco principal do trabalho é apresentado um percurso histórico sobre as questões que sustentam a referida controvérsia desde o século XVIII com Leonhard Euler até a atualidade. O texto contém análises exemplificadas em contextos diversos sobre a expressão e apresenta diferentes métodos para a operação potenciação que está estritamente relacionada ao conflito exposto. Também exibe soluções diversas obtidas para o valor da expressão 0 (0) por softwares matemáticos e expõe possíveis métodos de abordagens teóricas que sustentam as soluções que caracterizam a controvérsia. Ao final, é realizada uma análise de como alguns livros didáticos brasileiros abordam a referida expressão. O objetivo deste estudo e das reflexões contidas neste trabalho é permitir aos leitores, estudantes e professores, constatarem que a matemática é rica em detalhes e que o valor de uma simples operação aritmética pode não ter resposta única caso o contexto não esteja bem definido. / [en] This work is a study on the controversy surrounding the expression zero raised to zero. As the objective of contextualizing the main focus of the work is presented a historical journey on the issues that support this controversy since the eighteenth century with Leonhard Euler until today. The text contains analyzes exemplified in different contexts about expression and presents different methods for the potentiation operation that is strictly related to the exposed conflict. It also shows various solutions obtained for the value of the expression 0 (0) by mathematical software and exposes possible methods of theoretical approaches that support the solutions that characterize the controversy. At the end, an analysis is made of how some Brazilian textbooks approach this expression. The objective of this study and the reflections contained in this work is to allow readers, students and teachers, to see that mathematics is rich in details and that the value of a simple arithmetic operation may not have a single answer if the context is not well defined.

No description available.

The first part of this thesis proposes a method to synthesize the T- and £S-prototype of band-pass filters using the two reflection zeros and the rolloff rate. According to the characteristics of passive components embedded in different substrates, £S-prototype band-pass filter is suitable for implementation on LTCC substrate, while T-prototype band-pass filter is suitable for implementation on organic substrate. The second part of this thesis employs the £S-prototype to design the LTCC band-pass filters. It has been found that mutual coupling and feedback elements can be used to create the multiple transmission zeros. With these synthesized transmission zeros, the stopband attenuation can be enhanced at several specific frequencies. For demonstration, this thesis implements the LTCC band-pass filters in 2.4 GHz ISM band and 3.5 GHz WiMAX band. The measured results show that insertion loss and return loss in the passband for these LTCC filters is less than 2 dB and more than 10 dB, respectively. In addition, these filters have the additional transmission zeros for enhancing the stopband attenuation. Moreover, miniaturization is also a key issue in implementing these LTCC filters. The 2.4 GHz and 3.5 GHz LTCC filter can meet the standard 1608 size and 2520 size, respectively, which are the smallest compared to the other LTCC filters reported for similar applications in the current literature and commercial media.

In the practice of auditing, a sample of accounts is chosen to verify if the accounts are materially misstated, as opposed to auditing all accounts; it would be too expensive to audit all acounts. This paper seeks to find a method for choosing a sample size of accounts that will give a more accurate estimate than the current methods for sample size determination that are currently being used. A review of methods to determine sample size will be investigated under both the frequentist and Bayesian settings, and then our method using the Zero-Inflated Poisson (ZIP) model will be introduced which explicitly considers zero versus non-zero errors. This model is favorable due to the excess zeros that are present in auditing data which the standard Poisson model does not account for, and this could easily be extended to data similar to accounting populations.

Thesis (M.Sc. (Mathematics) -- University of Limpopo, 2010 / Summary not available

Edge detection is the process that attempts to characterize the intensity changes in the image in terms of the physical processes that have originated them. A critical, intermediate goal of edge detection is the detection and characterization of significant intensity changes. This paper discusses this part fo the edge detection problem. To characterize the types of intensity changes derivatives of different types, and possibly different scales, are needed. Thus we consider this part of edge detection as a problem in numerical differentiation. We show that numerical differentiation of images is an ill-posed problem in the sense of Hadamard. Differentiation needs to be regularized by a regularizing filtering operation before differentiation. This shows that his part of edge detection consists of two steps, a filtering step and differentiation step.

The cooperative communication is one of technologies which can explore the space diversity to resist fading channel. The spatial diversity is achieved by allowing various terminals behaving or a virtual antenna array and forwarding signal for a source terminal in cooperative manner. Under the existence of multiple sources, resource allocation to each source user is even more crucial to enhance the system performance and achieve higher diversity gain. In this work, we proposed a multiuser relaying strategy for a cooperative network with multiple sources sharing the radio resource provided by the cooperative relays simultaneously. Different from the existing work, the set of relays forwards signals of all source users over a common channel to raise spectral efficiency. With full channel information available at relays, the set of sub-optimal precoders and decoders was proposed in terms of maximal the average SNR over all users, subject to eliminating the multiple access interference (MAI) at each destination and satisfying total power constraint among all relays. It shows from the simulation results that, compared with the conventional cooperative strategy and direct transmission, the proposed scheme provides pronounced improvement on the outage capacity. Keywords: user cooperation, multiple access, resource allocation

Sustainable Built Environments Senior Capstone Project / This study is an analysis and definition of green building design and zero energy building. This distinguishes the different components that go into net zero building, and the feasibility of making it happen on current buildings, as well as ones in design. The study identifies a building currently in construction on the University of Arizona campus, and identifies its possibility of zero energy and how zero energy would affect the cost and performance of the building. Ultimately it is found that net zero is feasible for the Environmental Natural Resources Building 2 and the University of Arizona, and should be a component in the design and building process of future buildings on campus.