by Cheuk-hung Lam. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (p. 120-[129]). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web.

by Yee Ka Chi. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 101-[106]). / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.1.1 --- Large Scale Switch Interconnections --- p.2 / Chapter 1.1.2 --- Multichannel Switching and Resequencing --- p.6 / Chapter 1.1.3 --- Scheduling --- p.7 / Chapter 2 --- Hierarchical Banyan Switch Interconnection --- p.12 / Chapter 2.1 --- Introduction --- p.12 / Chapter 2.2 --- Switch Architecture --- p.13 / Chapter 2.3 --- Switch Operation --- p.19 / Chapter 2.3.1 --- Call Setup --- p.19 / Chapter 2.3.2 --- Cell Routing --- p.21 / Chapter 2.3.3 --- Fault Tolerance --- p.27 / Chapter 2.4 --- Call Blocking Analysis --- p.28 / Chapter 2.4.1 --- Dilated Banyan --- p.29 / Chapter 2.4.2 --- Dilated Benes Network --- p.30 / Chapter 2.4.3 --- HBSI --- p.30 / Chapter 2.5 --- Results and Discussions --- p.31 / Chapter 2.6 --- Summary --- p.37 / Chapter 3 --- Multichannel Switching and Resequencing --- p.40 / Chapter 3.1 --- Introduction --- p.40 / Chapter 3.2 --- Channel Assignment --- p.41 / Chapter 3.2.1 --- VC-Based Channel Allocation Mechanism --- p.41 / Chapter 3.2.2 --- Port-Based Channel Allocation Mechanism --- p.45 / Chapter 3.2.3 --- Trunk-Based Channel Allocation Mechanism --- p.46 / Chapter 3.3 --- Resequencer --- p.50 / Chapter 3.3.1 --- Resequencing Algorithm --- p.50 / Chapter 3.4 --- Results and Discussion --- p.55 / Chapter 3.5 --- Summary --- p.60 / Chapter 4 --- Scheduling --- p.62 / Chapter 4.1 --- Introduction --- p.62 / Chapter 4.2 --- Virtual Clock Scheduling (VCS) --- p.62 / Chapter 4.3 --- Gated Virtual Clock Scheduling (GVCS) --- p.70 / Chapter 4.4 --- Time-Priority Model --- p.75 / Chapter 4.5 --- Programmable Rate-based Scheduler (PRS) --- p.80 / Chapter 4.6 --- Integration with Resequencer --- p.83 / Chapter 4.7 --- Results and Discussions --- p.86 / Chapter 4.8 --- Summary --- p.96 / Chapter 5 --- Conclusion --- p.99 / Bibliography --- p.101

by Ngai Li. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 66-69). / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Video Compression and Transport --- p.2 / Chapter 1.2 --- Research Contributions --- p.6 / Chapter 1.2.1 --- Joint Rate Control of VBR Encoded Video --- p.6 / Chapter 1.2.2 --- Transporting VBR Video on LB Controlled Channel --- p.7 / Chapter 1.3 --- Organization of Thesis --- p.7 / Chapter 2 --- Preliminary --- p.9 / Chapter 2.1 --- Statistical Characteristics of MPEG-1 Encoded Video --- p.9 / Chapter 2.2 --- Temporal and Spatial Smoothing --- p.14 / Chapter 2.2.1 --- Temporal Smoothing --- p.14 / Chapter 2.2.2 --- Spatial Smoothing --- p.15 / Chapter 2.3 --- A Single Source Control-Theoretic Framework for VBR-to-CBR Video Adaptation --- p.16 / Chapter 3 --- Joint Rate Control of VBR Encoded Video --- p.19 / Chapter 3.1 --- Analytical Models --- p.21 / Chapter 3.2 --- Analysis --- p.27 / Chapter 3.2.1 --- Stable Region --- p.29 / Chapter 3.2.2 --- Final Value of the State Variables --- p.33 / Chapter 3.2.3 --- Peak Values of Buffer-occupancy Deviation and Image- quality Fluctuation --- p.35 / Chapter 3.2.4 --- SAE of Buffer-occupancy Deviation and Image-quality Fluc- tuation --- p.42 / Chapter 3.3 --- Experimental Results --- p.43 / Chapter 3.4 --- Concluding Remarks --- p.48 / Chapter 4 --- Transporting VBR Video on LB Controlled Channel --- p.50 / Chapter 4.1 --- Leaky Bucket Access Control --- p.51 / Chapter 4.2 --- Greedy Token-usage Strategy --- p.53 / Chapter 4.3 --- Non-greedy Token-usage Strategy --- p.57 / Chapter 4.4 --- Concluding Remarks --- p.60 / Chapter 5 --- Conclusions --- p.62 / Chapter 5.1 --- Joint Rate Control of Multiple VBR Videos --- p.62 / Chapter 5.2 --- LB Video Compression --- p.63 / Chapter 5.3 --- Further Study --- p.64 / Chapter 5.4 --- Publications --- p.65 / Bibliography --- p.65

It is vital for online educators to know whether the strategies they use help students gain 21st-century skills. One skill that has been identified as important in the 21st century is creativity; however, a gap existed in the literature concerning whether online courses could help students to develop creativity. Thus, the purpose of this study was to determine whether participation in online courses can help students develop creativity using asynchronous online discussions, textbooks, and teacher developed materials. Amabile's componential model of creativity formed the study's conceptual framework. A case-study approach was used to examine the question of whether asynchronous online discussions and other materials used in online courses could help students develop creativity. One professor, recognized by her peers for her expertise in online education, and three of her online graduate students who volunteered for the study, were interviewed using Zoom. Twenty-nine transcripts of asynchronous online discussions were analyzed using a sequential process of building an explanation, checking the explanation against the data, and repeating the process. Key results from the study indicated that project-based prompts, problem-based prompts, and heuristics used in asynchronous online discussions can help promote creativity. Recommendations for future research include conducting a similar case study with a more diverse group of participants and with a course in a different specialty. These findings may promote social change by helping online instructors use appropriate prompts for asynchronous online discussions that will help students refine their creative skills to ultimately use them in the 21st-century workplace.

The majority of ATM switches that have been proposed only support unicast (point-to-point) connections. Those supporting multicast (point-to-multipoint) connections tend to perform poorly, with acceptable multicast performance only achievable using an excessive amount of hardware. Because of the growing importance of multicast traffic, there is the demand for multicast switch designs which offer both low hardware complexity and high performance. This research investigates a class of multicast ATM switches called recycling switches which can satisfy both requirements. Recycling switch performance is studied using a simulated network model. The major performance parameters measured are the loss rate, mean delay, and delay variance of cells crossing through the switch under uniform and bursty traffic patterns. The reason recycling is not more widely used in multicast switches is the perception that it can lead to some multicast cells receiving lower quality of service than others. This research demonstrates a new priority-based approach to designing recycling multicast ATM switches which addresses this problem while maintaining low complexity and excellent scalability. / Masters Thesis

A novel power-saving and small-area digital output cell is proposed in the first topic of this thesis. The new output cell dramatically reduces the output power consumption by filtering pre-defined spikes, which have been considered as one of the major power dissipation sources of the whole chip, with little sacrifice of speed or delay. The bound of the spikes to be removed can be pre-defined either dynamically by digital selection signals or permanently by fuses to be burned. The maximum operating clock is 200 MHz given a 10 pF off-chip load based on testing result of the testkey chip with an almost 28 % power reduction at all PVT corners. The second topic presents a design of a 19-T (19 transistors) full adder with high impedance circuit and conflict circuit. The transistor count is dramatically reduced such that the power dissipation as well as the area on chip is very small .

Thesis (Ph. D.)--University of Texas at Austin, 1998. / Includes bibliographical references (leaves 145-154). Available also in a digital version from Dissertation Abstracts.

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