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by Chiu Man-cheong and Lo Kin-chung. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leave 1 (4th gp.)). / ABSTRACT --- p.iii / TABLE OF CONTENTS --- p.iv / ACKNOWLEDGEMENT --- p.vi / Chapter / Chapter I. --- INTRODUCTION --- p.1 / Chapter II. --- LITERATURE REVIEW --- p.4 / Variations --- p.7 / Ratio Analysis --- p.13 / Applications on Real Markets --- p.14 / Chapter III. --- METHODOLOGY --- p.16 / Wave Counting --- p.20 / Fibonacci Targets --- p.22 / Data Source --- p.23 / A Note on Notations --- p.23 / Chapter IV. --- RATIO ANALYSIS --- p.25 / Fibonacci Relationships --- p.25 / Results of Ratio Analysis --- p.28 / Wave 2 --- p.29 / Wave 3 --- p.30 / Wave 4 --- p.30 / Wave 5 --- p.31 / Summary of Results / Chapter V. --- FORMULATION OF TRADE PLANS AND RESULTS OF SIMULATED TRADING --- p.32 / Formulation of Trade Plans --- p.33 / Trade Plan No. 1 --- p.35 / Pre-conditions of Trade --- p.35 / Trade Initiation --- p.36 / Cut-loss Mechanism --- p.38 / Profit Taking --- p.39 / Trade Plan No. 2 --- p.41 / Pre-conditions of Trade --- p.42 / Trade Initiation --- p.42 / Cut-loss Mechanism --- p.43 / Profit Taking Point --- p.44 / Trade Opportunities Scan --- p.46 / Trade Case 1 --- p.52 / Pre-conditions --- p.52 / Trade Initiation --- p.52 / Profit-taking/Cut-loss --- p.53 / Trade Case 2 --- p.54 / Pre-conditions --- p.54 / Trade Initiation --- p.55 / Profit-taking/Cut-loss --- p.56 / Trade Case 5 --- p.57 / Pre-conditions --- p.57 / Trade Initiation --- p.58 / Profit-taking/Cut-loss --- p.58 / Results of Simulated Trade --- p.59 / Discussions on Simulated Trading --- p.62 / Chapter VI. --- WAVE ANALYSIS AND MARKET PERSPECTIVES --- p.65 / Analysis of the Broadest Swing --- p.66 / Phase 1 Price Movement --- p.67 / Phase 2 Price Movement --- p.70 / Future Market Perspectives --- p.78 / Chapter VII. --- DISCUSSIONS --- p.82 / Experience in Wave Counting --- p.82 / Limitations of Elliott Wave --- p.85 / Practical Issues --- p.86 / Chapter VIII. --- CONCLUSIONS --- p.92 / APPENDICES --- p.A-l / Chapter 1. --- RESULTS OF RATIO ANALYSIS --- p.A-2 / Chapter 2. --- DETAILS OF SIMULATED TRADING --- p.A-3 / BIBLIOGRAPHY --- p.B-l

by Lee Yat Fai, Frederick, Pang Fai. / Thesis (M.B.A.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaf 34). / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.2 / Chapter 2. --- Methodology --- p.4 / Chapter 2.1 --- Approach --- p.5 / Chapter 2.2 --- Model Automation Tools --- p.7 / Chapter 2.2.1 --- Data --- p.7 / Chapter 2.2.2 --- Trend Identification by Regression --- p.8 / Chapter 2.2.3 --- Programming variables --- p.13 / Chapter 2.2.4 --- Execution --- p.13 / Chapter 3. --- Literature Review --- p.16 / Chapter 4. --- Trading Models --- p.19 / Chapter 4.1 --- 2Premises --- p.19 / Chapter 4.2 --- Trading rules --- p.20 / Chapter 4.3 --- THE IMPLEMENTATION OF THE TRADING MODEL AND ITS TESTING --- p.20 / Chapter 4.4 --- The Test --- p.23 / Chapter 4.5 --- Some Arbitrary Inputs and Limitations --- p.24 / Chapter 4.6 --- Preliminary Testing and the Grand Trend --- p.25 / Chapter 5. --- RESULT & ANALYSIS --- p.26 / Chapter 5.1 --- Deals made along Trends Identified --- p.27 / Chapter 5.2 --- Pseudo Trends Identified during Corrections of Trends --- p.30 / Chapter 5.3 --- Deals made during Corrections of Trends --- p.30 / Chapter 6. --- CONCLUSIONS --- p.33 / Chapter 6.1 --- Further Studies Recommended --- p.33 / Bibliography --- p.34 / Appendices / Chapter a. --- Table1 --- p.35 / Chapter b. --- Table2 --- p.36

Made available in DSpace on 2014-06-12T17:39:33Z (GMT). No. of bitstreams: 2 arquivo6919_1.pdf: 4119217 bytes, checksum: 3f1efa22858eeae0d86c8392becd8174 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2007 / Códigos baseados em matrizes esparsas têm desempenhado um importante papel em teoria da codificação. Os códigos low-density parity-check (LDPC) constituem uma famosa família de códigos definidos a partir de matrizes de verificação de paridade esparsas que apresentam desempenhos excelentes no canal com ruído aditivo Gaussiano branco (RAGB). O sucesso desses códigos se deve a sua representação através de grafos, que permite a operação de um algoritmo de decodificação iterativo cuja complexidade cresce linearmente com o comprimento dos blocos. Esta dissertação apresenta um estudo sobre códigos LDPC e sua principal ferramenta de análise, a density evolution. Para isso, a representação gráfica de códigos de bloco lineares e o funcionamento do algoritmo de decodificação Soma-Produto são apresentados. Algumas técnicas de projeto de códigos LDPC são discutidas e seu desempenho no canal RAGB é avaliado por meio de simulações. Baseando-se nestas ferramentas, a density evolution para os canal RAGB é derivada em forma integral e em forma aproximada. Por fim, uma modificação no algoritmo Soma-Produto é proposta para decodificação de códigos LDPC no canal Gilbert-Elliott

Made available in DSpace on 2014-06-12T17:39:59Z (GMT). No. of bitstreams: 2 arquivo6995_1.pdf: 1049176 bytes, checksum: b3a6f8f79054249102563aaaf90c2d98 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2004 / O presente trabalho desenvolve modelos de canais de estados finitos (CEF) para um sistema de comunicação discreto, composto por um modulador digital, um canal com desvanecimento plano (Rayleigh ou Rice) correlacionado no tempo e um demodulador, bem como estuda as propriedades de correlação do processo de desvanecimento para analisar o desempenho de protocolos de solicitação de retransmissão automática (ARQ, do inglês automatic repeat request) em canais CEF. O modelo CEF irá representar os sucessos e erros na transmissão de símbolos em um canal com desvanecimento, o qual é representado matematicamente como uma seqüência de erro binária. Dois modelos de canais CEF comumente usados para caracterizar canais com desvanecimento serão considerados: o modelo de Markov de K-ésima ordem e o modelo Gilbert-Elliott (GEC). Será desenvolvida uma nova expressão analítica para o cálculo da vazão do esquema GBN (do inglês Go-Back-N) do protocolo ARQ para transmissão em canais CEF. A partir da comparação das curvas de vazão obtidas por simulação e as obtidas analiticamente para modelos CEF, serão determinadas faixas de parâmetros do sistema de comunicação nas quais o canal discreto pode ser aproximado por algum modelo CEF considerado neste trabalho. Os resultados obtidos avaliam a influência de diversos parâmetros do canal móvel no desempenho do sistema de comunicações

This thesis explores the queueing performance of a wireless communication system that transmits packets over a correlated erasure channel using the IEEE 802.11 protocol suit. The channel states and the queue length together form a Markov chain. Exploiting this mathematical structure, the probability of the queue exceeding a certain threshold can be obtained. Most previous contributions in this area treat code-rate selection, channel erasure probability and network congestion separately. In this thesis, a simple integrated approach, which jointly considers these factors, is introduced. This approach becomes especially valuable for capturing the performance of delay-sensitive communication systems over time-varying channels. This thesis starts with a review of related work about correlated bit-erasure wireless channel models. A numerical study is then conducted to demonstrate the importance of optimizing overall system performance, and how this process impacts error-control coding at the physical layer. Following this exercise, a packet-erasure channel model with a Poisson arrival process is analyzed. The Baum-Welch algorithm is subsequently presented as a means to estimate the parameters of wireless communication systems. Furthermore, a matrix geometric method for obtaining the stationary distribution of the ensuing Markov chain is discussed. This offers a new perspective on wireless communication in the context of delay-sensitive applications. To complement the analysis platform put forth in this work, illustrative numerical results are contained in the last section of the thesis. From these results, design guidelines for improving the performance of delay-sensitive wireless communication systems are established. Although these results are obtained under simplifying assumptions, the overall methodology applies to more general situations, especially for wide-band delay-sensitive wireless communication applications.

Although traditional methods of teaching brass embouchure tend to favor a more centered mouthpiece placement, individual differences in facial structure may make a centered placement inefficient for many individuals. Thirty-four test subjects (N = 34) who volunteered from a mid-sized, Midwestern university school of music, a mid-sized Midwestern high school, and professional and semiprofessional trombonists from around a Midwestern state were tested for an efficient embouchure and then photographed while playing specific pitches into a transparent plastic mouthpiece. Additionally, each subject filled out a brief survey and had various facial characteristics photographed. Statistics from this data suggest that the three basic types defined by Doug Elliott, Very High Placement Type, Medium High Placement Type, and Very Low Placement Type, are accurate. Evidence also suggested that airstream direction and the use of an embouchure motion is dependant on vertical mouthpiece placement. The angle of the airstream also changes according to the register being played. It was also determined that certain physical characteristics, most notably lip protrusion, suggested that a subject will play with a specific mouthpiece placement. / School of Music

Thesis (M. Div.)--Emmanuel School of Religion, 2006. / Vita. Includes bibliographical references (leaf 41).

Thesis (Ph. D.)--Ohio State University, 2004. / Document formatted into pages. Includes bibliographical references. Abstract available online via OhioLINK's ETD Center; full text release delayed at author's request until 2009 Aug. 18.

The timeframe of 1978-1984, a period of critical importance in the development of the nuclear world, sets the boundaries for this analysis of Canadian nuclear arms control policy. The situation brought about by increasing hostility between the superpowers, and changes in doctrine and advances in technology that facilitated nuclear war-fighting scenarios, was extremely grave. Therefore it would seem appropriate for Canada, in its traditional role as mediator and middlepower devoted to easing the danger of world conflagration, to have taken an active stand in its nuclear arms control diplomacy. Such was not the case, as bureaucratic politics, cybernetic decision-making, and cognitive dissonance made adherence to the status quo, or minimal rhetorical changes, the order of the day. While that changed towards the end of the period under examination, there remained little substantive modification of policy, despite the growing threat of nuclear disaster. Four examples of Canadian nuclear arms control policy are examined with the aid of official government documents and appropriate commentary from a variety of analysts. Canadian arms control policy at the two United Nations Special Sessions on Disarmament, the controversy over the question of testing the American Air-Launched Cruise Missile in Canada, and Prime Minister Pierre Trudeau's personal peace initiative provide a wealth of information that is used to illustrate the struggle of bureaucratic politics versus rational decision-making. Some of the more influential theoretical and structural difficulties within the foreign policy-making process in Canada that posed real impediments to comprehensive analytical decision-making are presented. These problems are outlined in order to provide a framework for the analysis of the four policy situations. In the first three cases, the decision-making indicates the predominance of the bureaucracy's cybernetic conduct. In the last instance, the attempts of the Prime Minister to impose rational/analytical decision-making on the policy process caused him to actively circumvent the bureaucracy within Canada, but he was bested by external forces. The thesis of this monograph is that Canadian nuclear arms control policy for much of this period was reactive, limited to well-crafted rhetoric, and oblivious to the changing nature of the strategic environment. The reasons for this policy behavior may be traced to external constraints imposed by the dynamics of the international system, the nonrationality of the nuclear world, and the weakness of Canada's influence vis-a-vis the superpowers. As well, the importance of not alienating the United States by too forceful a criticism was an essential consideration in the policy process due to the many issues of contention that already existed between Canada and the United States, and the vulnerability of Canada in economic terms to the negative reactions of its North American neighbour. When the Prime Minister did try to set policy and actively change the nuclear world via his personal peace initiative, the same factors and forces proved to be his undoing. In addition, the reactions on the international scene by some of the more powerful Western players indicate that Canada did not have the credibility to attempt such an influential role in the nuclear world. This response may have been prompted by Canada's minimal defence spending in recent years, or it may well have been the fate of a middlepower trying to exert influence in areas where the other nations were loathe to accept it. / Arts, Faculty of / Political Science, Department of / Graduate