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MArch (Professional), Faculty of Engineering and the Built Environment, School of Architecture and Planning, University of the Witwatersrand

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Thesis (M.S.)--Wisconsin, 1973. / Typescript (Photocopy). eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (p. 156-164).

In the past two decades, there has been huge amount of interest in Multiresolution Analysis Algorithms (MAAs) and their applications. Processing some of their applications such as medical imaging are computationally intensive, power hungry and requires large amount of memory which cause a high demand for efficient algorithm implementation, low power architecture and acceleration. Recently, some MAAs such as Finite Ridgelet Transform (FRIT) Haar Wavelet Transform (HWT) are became very popular and they are suitable for a number of image processing applications such as detection of line singularities and contiguous edges, edge detection (useful for compression and feature detection), medical image denoising and segmentation. Efficient hardware implementation and acceleration of these algorithms particularly when addressing large problems are becoming very chal-lenging and consume lot of power which leads to a number of issues including mobility, reliability concerns. To overcome the computation problems, Field Programmable Gate Arrays (FPGAs) are the technology of choice for accelerating computationally intensive applications due to their high performance. Addressing the power issue requires optimi- sation and awareness at all level of abstractions in the design flow. The most important achievements of the work presented in this thesis are summarised here. Two factorisation methodologies for HWT which are called HWT Factorisation Method1 and (HWTFM1) and HWT Factorasation Method2 (HWTFM2) have been explored to increase number of zeros and reduce hardware resources. In addition, two novel efficient and optimised architectures for proposed methodologies based on Distributed Arithmetic (DA) principles have been proposed. The evaluation of the architectural results have shown that the proposed architectures results have reduced the arithmetics calculation (additions/subtractions) by 33% and 25% respectively compared to direct implementa-tion of HWT and outperformed existing results in place. The proposed HWTFM2 is implemented on advanced and low power FPGA devices using Handel-C language. The FPGAs implementation results have outperformed other existing results in terms of area and maximum frequency. In addition, a novel efficient architecture for Finite Radon Trans-form (FRAT) has also been proposed. The proposed architecture is integrated with the developed HWT architecture to build an optimised architecture for FRIT. Strategies such as parallelism and pipelining have been deployed at the architectural level for efficient im-plementation on different FPGA devices. The proposed FRIT architecture performance has been evaluated and the results outperformed some other existing architecture in place. Both FRAT and FRIT architectures have been implemented on FPGAs using Handel-C language. The evaluation of both architectures have shown that the obtained results out-performed existing results in place by almost 10% in terms of frequency and area. The proposed architectures are also applied on image data (256 £ 256) and their Peak Signal to Noise Ratio (PSNR) is evaluated for quality purposes. Two architectures for cyclic convolution based on systolic array using parallelism and pipelining which can be used as the main building block for the proposed FRIT architec-ture have been proposed. The first proposed architecture is a linear systolic array with pipelining process and the second architecture is a systolic array with parallel process. The second architecture reduces the number of registers by 42% compare to first architec-ture and both architectures outperformed other existing results in place. The proposed pipelined architecture has been implemented on different FPGA devices with vector size (N) 4,8,16,32 and word-length (W=8). The implementation results have shown a signifi-cant improvement and outperformed other existing results in place. Ultimately, an in-depth evaluation of a high level power macromodelling technique for design space exploration and characterisation of custom IP cores for FPGAs, called func-tional level power modelling approach have been presented. The mathematical techniques that form the basis of the proposed power modeling has been validated by a range of custom IP cores. The proposed power modelling is scalable, platform independent and compares favorably with existing approaches. A hybrid, top-down design flow paradigm integrating functional level power modelling with commercially available design tools for systematic optimisation of IP cores has also been developed. The in-depth evaluation of this tool enables us to observe the behavior of different custom IP cores in terms of power consumption and accuracy using different design methodologies and arithmetic techniques on virous FPGA platforms. Based on the results achieved, the proposed model accuracy is almost 99% true for all IP core's Dynamic Power (DP) components.

It is generally accepted that there is social alienation towards the elderly in Hong Kong. In Hong Kong society, the poor elderly are stereotyped as being a group of weak, handicapped, and lonely people. Often they are regarded as outdated and unable to adapt to rapid changes in society. The virtue of respecting elderly is facing challenges because of rapid social changes. Recently, the government has proposed the elderly move to China to grow old. “Aging in Place” has become harder to archive nowadays and it is common for Hong Kong families to commit their elderly family members to nursing homes away from society due to the changing family structure. People admit that there are challenges and obstacles of letting elders “age in place”. Urban development, social gentrification, poverty and the decline of traditional cultural values have posed a considerable threat to the idea of “aging in place” in Hong Kong. Currently, in order to administrate with higher degree of convenience and effectiveness, nursing homes are often too “institutionalized” and lack relaxing and intimate environments. This thesis is attempting to re-code this planning strategy for an aging population and develop a new precedent of living for the elderly in Hong Kong. Meanwhile, it is attempting to make a rectification on present elderly home and retirement housing settings and to investigate the real needs of elders. / published_or_final_version / Architecture / Master / Master of Landscape Architecture

Thesis (M. Sc.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 241-247).

Photocopy of typescript. / Digitized by Kansas Correctional Industries

The increase in the number of cores that can be integrated on a single chip has forced the designer to use computer network concepts for design of System on Chip (SoC). This idea led to development of Network on Chip (NoC) to deal with more cores on a single chip. NoC has three main parts, namely routers, link and network interface through which cores are connected to NoC. Router is one of the most important parts because cores communicate with other cores through routers. One of the important tasks for a NoC designer is to design router with low latency.Router design depends on the routing protocol and routing algorithm used. Two kinds of routing algorithms are source routing and distributed routing. In source routing, complete route information is available in Head flit while in distributed routing, routing decisions are taken inside every router on the path. Source routing has speed advantage over distributed routing because the packet itself contains the routing information. But source routing leads to overhead to store complete path information in the header of each packet. To overcome this flaw, junction based source routing has been introduced. If destination is far away from the source then first packet will go to a junction and get the new path information from the junction to the destination. Thus we need to store the path information only for a few hops in the packet header. This idea has been taken from the daily experience of train journey. In this thesis we have developed design of a router for junction based source routing. Main component of simple router includes buffering, header modification and making route decision. Router includes a table called Path Table which stores information about paths from junction to various destinations. JB router also includes, picking up the new path information from Path Table and modify the header by adding new path information.We have developed VHDL designs of two versions of the routers for Junction Based Routing. The delay performance of routers have been analysed through simulation. A simple prototype of the router has also been implemented in Altera FPGA to find out the resource requirements of the new router designs.

Orientadores: Haroldo Gallo, Anna Paula Silva Gouveia / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-08-11T14:12:28Z (GMT). No. of bitstreams: 1 Florio_AnaMariaTagliari_M.pdf: 55398837 bytes, checksum: 8cd34b32ce3b81be62f7eede736ba95a (MD5) Previous issue date: 2008 / Resumo: Esta dissertação tem como objetivo principal a análise de projetos arquitetônicos residenciais do arquiteto moderno Frank Lloyd Wright pelo método gráfico. Segundo Wright, a Arquitetura Orgânica possui princípios, onde se baseiam e se fundamentam os projetos. A análise foi realizada pelo método de investigação gráfica, ou seja, por diagramas e para tanto adotamos itens de análise que favorecessem o estudo sistemático dos princípios de sua Arquitetura Orgânica, a fim de criar diagramas sintéticos interpretativos. Foram selecionadas quatorze obras construídas significativas que representam cerca de 400 residências construídas no total, e que fora dividida em três fases: Residências Prairie, Textile Block e Usonia. Para o melhor entendimento das análises dos projetos na primeira e segunda parte da dissertação foram elaborados textos que estabelecem uma base teórica fundamental a partir de escritos do próprio arquiteto, teóricos, críticos e seus clientes e aprendizes. As análises individuais geraram diagramas interpretativos que revelam como foram concretizados, em formas e espaços arquitetônicos, os princípios de sua Arquitetura. Os diagramas revelam tanto características da individualidade de cada projeto e suas peculiaridades, como a linguagem presente no conjunto da obra de cada fase. As tabelas comparativas revelam as transformações do projeto residencial de Wright em cada fase, bem como em todo o conjunto de sua obra, onde fica claro o amadurecimento e consolidação de uma arquitetura genuinamente norteamericana. A análise por comparação torna clara a riqueza e variedade de uma arquitetura coerente e fundamentada nos mesmos princípios. Essa arquitetura humanista contribuiu ao mesmo tempo para uma nova conceituação do espaço sem desrespeitar a natureza, a região e os indivíduos / Abstract: The main purpose of this dissertation is the analysis of residential projects of modern architect Frank Lloyd Wright by the graphical method. According to Wright, Organic Architecture has principles, where projects are based on. The analysis was carried through by the graphic method of investigation and diagrams. For that reason, we adopt some analysis item that privileged the systematic study of the principles of his Organic Architecture, in order to create interpretative synthetic diagrams. Fourteen significant residences had been selected among all the construct projects, which represent about 400 residences constructed in the total, and divided in three phases: Prairie, Textile Block and Usonia residences. For finest understanding of the analyses of the projects in first and the second part of the dissertation, texts had been elaborated which establish a basic theoretical base from writings of the architect, theoreticians, critics and his customers and apprentices. The individual analyses had created interpretative diagrams that disclose how they were materialized, in forms and architectural spaces, the principles of his Architecture. The diagrams in such a way disclose of the individuality of each project and its peculiarities, as the present language in the set of the projects of each phase. The comparative tables disclose the transformations of the residential project of Wright in each phase, as well as in all the set of each project, where we can clearly notice the mature and consolidation of a genuinely North American architecture. The comparative analysis brings clear the wealth and variety of a coherent architecture and based on the same principles. This humanist architecture contributed at the same time for a new conceptualization of the space without disrespecting the nature, the region and the individuals / Mestrado / Mestre em Artes