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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
131

EQUIPMENT TIME-DELAY (ETD) MEASUREMENT TECHNOLOGY FOR CONTINUOUS WAVE TRANSPONDER

Chengfang, Huang, Jianping, Hu 10 1900 (has links)
International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California / The Equipment Time-Delay (ETD) measurement technology for Continuous Wave (CW) transponder is discussed with emphasis on the principle of measuring the ETD of the intermediate frequency (IF) modulation transponder through measuring subcarrier modulation sideband tone phase. A general method for measuring ETD of different types of transponder (including IF-modulation transponder) is introduced. Finally the measurement method error is analyzed.
132

The enigma of Cantonese tones: how intonationlanguage speakers can be assisted to discern them

Ki, Wing-wah., 祁永華. January 2007 (has links)
published_or_final_version / abstract / Education / Doctoral / Doctor of Philosophy
133

HOW DOES SAD MOOD AFFECT RESPONSES TO UNFAIRNESS IN SOCIAL ECONOMIC DECISIONS? A NEUROPHYSIOLOGICAL INVESTIGATION

Harle, Katia January 2011 (has links)
Empirical evidence suggests that complex cognitive processes such as decision-making can be influenced by incidental affect (i.e. emotional states unrelated to the decision), which may have importance implications for furthering our understanding and treatment of mood disorders. Following up on previous behavioral findings suggesting that sad mood leads to biases in social decision-making, the present research first investigated how such biases are implemented in the brain. Nineteen adult participants made decisions that involved accepting or rejecting monetary offers from others in an Ultimatum Game (a well known economic task), while undergoing functional magnetic resonance imaging (fMRI). Prior to each set of decisions, participants watched a short video clip aimed at inducing either sadness or a neutral emotional state. Results indicated that sad participants rejected more "unfair" offers than those in the neutral condition, thereby replicating our previous findings. Neuroimaging analyses revealed that receiving unfair offers while in a sad mood elicited activity in brain areas related to aversive emotional states and somatosensory integration (anterior insula) and to cognitive conflict (anterior cingulate cortex). Sad participants also showed a diminished sensitivity in neural regions associated with reward processing (ventral striatum). Importantly, insular activation uniquely mediated the relationship between sadness and decision bias, demonstrating how subtle mood states can be integrated at the neural level to bias decision-making.In a second study, we assessed to what extent such affect infusion in decision-making may translate to clinical depression, a mood disorder involving chronic sad affect. Fifteen depressed and twenty-three nondepressed individuals made decisions to accept or reject monetary offers from other players in the Ultimatum Game. Like transiently sad, but healthy, individuals, depressed participants reported a more negative emotional reaction to unfair offers. However, unlike sad healthy individuals, they accepted significantly more of these offers than did controls. A positive relationship was observed in the depressed group, but not in controls, between acceptance rates of unfair offers and resting cardiac vagal tone, a physiological index of emotion regulation capacity. These findings suggest distinct biasing processes in depression, which may be related to higher reliance on regulating negative emotion.
134

AN EXPANDED CONCEPT OF TIMBRE AND ITS STRUCTURAL SIGNIFICANCE, WITH A TIMBRAL ANALYSIS OF GEORGE CRUMB'S "NIGHT OF THE FOUR MOONS".

MCGEE, WILLIAM JAMES. January 1982 (has links)
Timbre is an important aspect of music, particularly in the twentieth century. Relatively little serious work on this subject has been published, however, either from a historical standpoint or from an analytical view. The purpose of this present study was to clarify the nature of timbre and to demonstrate the structural role it can have in music. The development of the timbre concept was traced from as early as the fifteenth century to present. From a very simple idea, timbre evolved into a complex phenomenon involving scientific, acoustical analysis and subjective, perceptual evaluation. It was found that currently timbre is not merely a physical manifestation, but also a function of aesthetic judgment and human response to stimuli. A brief historical survey was made of the importance of timbre in music. It was shown that timbre emerged as a significant musical element, forming the characteristic sound structure of a composition and (by extension) the distinctive sonorous style (Klangstil) of a composer. In developing to this point, the idea of timbre metamorphosed into a particular concept of "sound," a term that includes any sound quality that contributes to the character and structure of a composition. A process of analysis was developed to determine musical sound structure. It was shown that the sound-related aspects of the parameters of pitch, dynamics, time, texture, and timbre can act and interact to construct formal shape through cohesion and differentiation. It was established that the music of George Crumb shows a high regard for sound as a structural element. His Night of the Four Moons was analyzed, demonstrating the process of sound analysis. The analysis also showed that various qualities of sound itself are used as compositional material as well as for cohesion and differentiation. This aurally perceived, characteristic structure formed by or related to the action of sound was termed the "audiogenic image."
135

Heimferðin (The Journey Home): Tone Poem for Symphony Orchestra

Ingimundardottir, Gudrun January 2009 (has links)
Composers of the 20th century express through intimate and personal language the conditions of the present, utilizing compositional techniques, forms, pitch and rhythmic language, and characteristics of Western composers, as well as looking towards non- Western music for the same. Each musical language, be it tonal, twelve-tone, modal, pitch-class, or derived from folk and non-Western material, is contained in a structural framework which is audibly recognizable, and controls the musical tapestry, processes, and results. Frequently composers use distinctive musical languages to portray different atmospheres, and thus allow each musical language to dominate the texture in order to create the desired contrast. But, jumping directly from one pitch language to another can create a sense of cacophony and loss of cohesion to the composition as a whole. In my composition I intend to show that by superimposing the structural parameters of one musical language onto another, it is possible to attain consistency and coherence, despite the underlying diversity. The composition is based on the story Heimferðin (The Journey Home) by Sigurður Rúnar Þrastarson (1961-1998). The composition is in five movements: I. Dawn; II. Dance and Devotion; III. Frolic; IV. Fury, V. Farwell. Each movement describes particular settings and events of the story. Internal events have been slightly reordered, but otherwise the composition follows the storyline from beginning to end. The final two minutes and twenty seconds of the composition are an original arrangement of a song, written in 1820, by the Danish composer P. C. Krossing (1793-1838).
136

Tonal Reduction and Literacy in Me'phaa Vátháá

Coto Solano, Rolando Alberto, Coto Solano, Rolando Alberto January 2017 (has links)
This study examines the relationship between tonal phonetics, tonal reduction and orthographic patterns produced by Me'phaa Vátháá speaking teachers. It discusses these patterns in the context of Indigenous education in Mexico and of the language ideologies held by the teachers, which have parallels to those held by speakers of Spanish and practitioners of language revitalization. Its main finding is that tones undergo phonetic changes which reduce their relative psychoacoustic distances, and this combines with the writing practices of the teachers (in which they repeat the words to themselves at varying speeds) to produce hesitation when writing the tonal markers. This is framed in an ideological process of privileging writing as the ideal form of language revitalization, and of rejection of variants and spelling 'mistakes', which results in further linguistic insecurity by the teachers. This has repercussions for the revitalization of the language, in that teachers sometimes choose not to write in Me'phaa Vátháá, particularly in contexts involving technology such as social media, out of fear of making 'mistakes'. In studying these phenomena, this study also describes the processes of tonal reduction in Me'phaa Vátháá and describes its similarities and differences with the reduction described for other tonal languages such as Mandarin, Thai and Triqui. Tonal reduction processes in Me'phaa Vátháá are not an exact match to any of these languages, which suggests that, while reduction is universal, it has language-specific expressions, which suggest that reduction typologies should be further studied. In addition to this, the study offers a report on the process of tonal spelling learning by adults who didn't receive this training as children. This is relevant to both educational and language planners, as well as to practitioners of language revitalization.
137

BLOOD & THUNDER CLASSICS, VOL. 2

Taylor, Brian 30 April 2009 (has links)
A MAGAZINE – A game of Chutes and Ladders – a network of pools connected by streams, rivulets, creeks and rivers. Concerns: aluminum, sculpture, film, an endless image or an image-object, cork, shoulders as the center of movement, archery, wicker, nystagmus, darkness or the penumbral near-darkness, constant movement, beer, tone, musical forms, bells, gongs, The Titanic, purple, black and white, indeterminacy, Ghostface, yodeling, John Smith, John Adams, David Hammons, Beyoncé, Honda CR-V’s, Har-khebi, Ahnighito, Hermann Doomer, Prince, Yvonne Rainer, perception, double rainbows, composers from Transylvania, Los Angeles, and chandeliers. “Everything is everything.” and “A woman is the first teacher.”
138

An admission control algorithm for providing quality-of-service guarantee for individual connection in a video-on-demand system.

January 2000 (has links)
by Xiaoqing Wang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 43-45). / Abstracts in English and Chinese. / Acknowledgments --- p.ii / Abstract --- p.iii / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- The General Architecture of the VoD System and the Related Issues --- p.4 / Chapter 2.1 --- A Brief Description of VoD System --- p.4 / Chapter 2.2 --- Why Video Streams in VoD Service are VBR in Nature? --- p.6 / Chapter 2.3 --- The Video Storage Media in the VoD Systems --- p.8 / Chapter 2.4 --- The Data Placement Scheme in the VoD System --- p.9 / Chapter 2.5 --- An Overview of Disk Scheduling in VoD System --- p.10 / Chapter 2.6 --- The Admission Control in VoD System --- p.12 / Chapter 3 --- Our Admission Control Algorithm for VoD System --- p.14 / Chapter 3.1 --- QoS Requirements We Choose --- p.14 / Chapter 3.2 --- System Model --- p.15 / Chapter 3.3 --- The Admission Control for the Storage Sub-system --- p.19 / Chapter 3.4 --- The Admission Control for Network Sub-system --- p.21 / Chapter 3.4.1 --- Preliminaries --- p.22 / Chapter 3.4.2 --- The Admission Control Algorithm for Network Sub-system --- p.27 / Chapter 4 --- Experiment --- p.33 / Chapter 5 --- Conclusion and Future Work --- p.41 / Chapter 5.1 --- Conclusion --- p.41 / Chapter 5.2 --- Future Work --- p.42
139

Design and performance analysis of a super-scalar video-on-demand system.

January 2001 (has links)
Lee Chung Hing. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 61-63). / Abstracts in English and Chinese. / Acknowledgements --- p.ii / Abstract --- p.iii / List of Figures --- p.vii / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Contributions of This Thesis --- p.3 / Chapter 1.2 --- Organizations of This Thesis --- p.3 / Chapter 1.3 --- Publication --- p.4 / Chapter 2. --- Overview of VoD Systems --- p.5 / Chapter 2.1 --- True VoD --- p.6 / Chapter 2.2 --- Near VoD --- p.7 / Chapter 2.3 --- Related Works --- p.9 / Chapter 2.3.1 --- Batching --- p.9 / Chapter 2.3.2 --- Patching --- p.11 / Chapter 2.3.3 --- Mcache --- p.11 / Chapter 2.3.4 --- Unified VoD --- p.12 / Chapter 2.4 --- Discussions --- p.15 / Chapter 3. --- Super-Scalar Architecture --- p.17 / Chapter 3.1 --- Transmission Scheduling --- p.20 / Chapter 3.2 --- Admission Control --- p.21 / Chapter 3.3 --- Channel Merging --- p.26 / Chapter 3.4 --- Interactive Control --- p.29 / Chapter 4. --- Performance Modeling --- p.31 / Chapter 4.1 --- Waiting Time for Statically-Admitted Clients --- p.32 / Chapter 4.2 --- Waiting Time for Dynamically-Admitted Clients --- p.33 / Chapter 4.3 --- Admission Threshold --- p.38 / Chapter 4.4 --- Channel Partitioning --- p.39 / Chapter 5. --- Performance Evaluation --- p.40 / Chapter 5.1 --- Model Validation --- p.40 / Chapter 5.2 --- Channel Partitioning --- p.42 / Chapter 5.3 --- Latency Comparisons --- p.44 / Chapter 5.4 --- Channel Requirement --- p.46 / Chapter 5.5 --- Performance at Light Loads --- p.47 / Chapter 5.6 --- Multiplexing Gain --- p.49 / Chapter 6. --- Implementation and Benchmarking --- p.51 / Chapter 6.1 --- Implementation Description --- p.51 / Chapter 6.2 --- Benchmarking --- p.53 / Chapter 6.2.1 --- Benchmarking Setup --- p.53 / Chapter 6.2.2 --- Benchmarking Result --- p.55 / Chapter 7. --- Conclusion --- p.56 / Appendix --- p.57 / Bibliography --- p.61
140

Tone discrimination in infants acquiring a tonal language.

January 2007 (has links)
Lei, Ka Yan Margaret. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 88-94). / Abstracts in English and Chinese. / Acknowledgments --- p.i / Abstract --- p.iv / 摘要 --- p.vi / Chapter CHAPTER 1 --- INTRODUCTION --- p.1 / Chapter CHAPTER 2 --- BACKGROUND --- p.8 / Chapter 2.1 --- Infants' perception of speech contrasts --- p.9 / Chapter 2.1.1 --- Discrimination of segmental contrasts --- p.10 / Chapter 2.1.2 --- Discrimination of suprasegmental contrasts --- p.16 / Chapter 2.2 --- The Cantonese tonal system --- p.22 / Chapter 2.2.1 --- Properties and classification of the Cantonese tones --- p.22 / Chapter 2.2.2 --- Distributional pattern of the Cantonese tones --- p.24 / Chapter 2.3 --- Tone perception in Cantonese-speaking adults and children --- p.27 / Chapter 2.3.1 --- Tone perception in Cantonese-speaking adults --- p.27 / Chapter 2.3.2 --- Tone perception in Cantonese-speaking children --- p.29 / Chapter 2.3.3 --- Discussion --- p.31 / Chapter 2.4 --- Tone acquisition --- p.32 / Chapter CHAPTER 3 --- METHODOLOGY --- p.34 / Chapter 3.1 --- Operant conditioning --- p.35 / Chapter 3.2 --- Background of the paradigm --- p.35 / Chapter 3.3 --- Subjects --- p.38 / Chapter 3.4 --- Stimuli used in the experiments --- p.39 / Chapter 3.3.1 --- Auditory stimuli --- p.39 / Chapter 3.3.2 --- Visual stimuli --- p.41 / Chapter 3.5 --- Experimental site --- p.43 / Chapter 3.6 --- Procedure --- p.46 / Chapter 3.7 --- Technical control of experiment --- p.49 / Chapter CHAPTER 4 --- RESULTS OF THE STUDY --- p.52 / Chapter 4.1 --- Details of experiment --- p.52 / Chapter 4.2 --- Assessment criteria --- p.55 / Chapter 4.3 --- Results --- p.58 / Chapter 4.3.1 --- Discrimination performance of Group I subjects --- p.61 / Chapter 4.3.2 --- Discrimination performance of Group II subjects --- p.68 / Chapter 4.3.3 --- Discrimination performance of Group III subjects --- p.72 / Chapter 4.4 --- Comparison with previous studies --- p.72 / Chapter 4.5 --- Summary --- p.73 / Chapter CHAPTER 5 --- DISCUSSION & CONCLUSIONS --- p.74 / Chapter 5.1 --- Strengths of the VRISD paradigm --- p.74 / Chapter 5.2 --- The use of operant conditioning --- p.76 / Chapter 5.3 --- Relative nature of tone --- p.77 / Chapter 5.4 --- Acoustic similarity between the tones --- p.78 / Chapter 5.5 --- Interplay between production and perception --- p.79 / Chapter 5.6 --- Association between tone perception and tone acquisition --- p.81 / Chapter 5.7 --- Tonal versus segmental discrimination --- p.82 / Chapter 5.8 --- Tone perception in connected speech --- p.84 / Chapter 5.9 --- Gender identification --- p.85 / Chapter 5.10 --- Conclusions --- p.86 / Bibliography --- p.88

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