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This research employs a sample of archaeological sites from three ecological zones to investigate the mobility strategies of hunter-gatherer groups in Late Archaic southwestern Idaho. The sample sites are organized into site types based on an independent evaluation of site components and existing site records. Ceramic assemblages at each site were analyzed to quantify the investment in ceramic technology, as a proxy for mobility. These measures were then compared to expectations generated from three proposed mobility patterns for hunter-gatherer groups in southwestern Idaho. Some of the predictions were met and these data allude to an archaeological record with a multitude of settlement patterns that may have changed over the course of seasons, years, and even decades.

A new modified-T equivalent-circuit model for the embedded inductors in LTCC is first introduced in this thesis. The model can predict the parallel, series, and ground resonant frequencies successfully. For the embedded capacitors in LTCC, a £k-equivalent circuit that can include first two resonant frequencies has been used. One example for each model has been established to illustrate the broadband features of the models. Finally, a parameter table is given to evaluate the performance of these embedded LTCC inductors and capacitors.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Neste trabalho são apresentados os resultados obtidos com a quantificação de parâmetros - por meio de técnicas de histomorfometria - de amostras de espumas cerâmicas. Esta quantificação foi feita por meio de análise de imagens bidimensionais a partir de técnicas de processamento de imagens digitais. As imagens analisadas neste trabalho foram obtidas através de digitalização das faces das amostras com o uso de um scanner convencional e os dados obtidos para cada amostra de espuma foram comparados com os resultados encontrados com a utilização de imagens tomográficas e um aplicativo desenvolvido para a análise de tais imagens. Os ensaios realizados com as amostras citadas mostram que a utilização do scanner convencional para a aquisição das imagens é vantajosa sob o ponto de vista da facilidade de obtenção de tais imagens e que a quantificação histomorfométrica pode ser feita a partir de imagens 2D desses objetos. / In this work will present the results obtained with quantification of parameters by means of histomorphometry techniques of ceramic foam samples. This quantification was done by means of two-dimensional image analysis techniques from image processing. The images analyzed in this work were obtained by scanning the faces of the samples using a conventional scanner and the data obtained for each sample were compared with results obtained by use of tomographic images and an application developed for the analysis of such images. Tests conducted whit the samples mentioned show the use of conventional scanner for image acquisition is advantageous from the point of view of obtaining such images and the histomorphometric quantification can be made in 2D images of the faces of these objects.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Neste trabalho são apresentados os resultados obtidos com a quantificação de parâmetros - por meio de técnicas de histomorfometria - de amostras de espumas cerâmicas. Esta quantificação foi feita por meio de análise de imagens bidimensionais a partir de técnicas de processamento de imagens digitais. As imagens analisadas neste trabalho foram obtidas através de digitalização das faces das amostras com o uso de um scanner convencional e os dados obtidos para cada amostra de espuma foram comparados com os resultados encontrados com a utilização de imagens tomográficas e um aplicativo desenvolvido para a análise de tais imagens. Os ensaios realizados com as amostras citadas mostram que a utilização do scanner convencional para a aquisição das imagens é vantajosa sob o ponto de vista da facilidade de obtenção de tais imagens e que a quantificação histomorfométrica pode ser feita a partir de imagens 2D desses objetos. / In this work will present the results obtained with quantification of parameters by means of histomorphometry techniques of ceramic foam samples. This quantification was done by means of two-dimensional image analysis techniques from image processing. The images analyzed in this work were obtained by scanning the faces of the samples using a conventional scanner and the data obtained for each sample were compared with results obtained by use of tomographic images and an application developed for the analysis of such images. Tests conducted whit the samples mentioned show the use of conventional scanner for image acquisition is advantageous from the point of view of obtaining such images and the histomorphometric quantification can be made in 2D images of the faces of these objects.

In the first, we design and implement a Two -Point Voltage-Controlled Oscillator which applied in Open-Loop and Two-Point Close-Loop Modulation Bluetooth transmitter and include Hybrid and CMOS RFIC design. Second, we design six LTCC embedded components including inductors and capacitors. The extraction result via traditional equivalent £kmodel match the simulation and the frequency response of adopted model can accurate to device¡¦s Self-Resonant-Frequency nearby compare with measurement. In the end, we design and implement a LTCC Two-Point Voltage-Controlled Oscillator module and effective ly reduce the module size.

The study presented herein involves the analyze of the meanings of the use and manufacture of ceramic pots to store and cool water in Cariri Ceara within an etnoarqueológica perspective. The intention is to discuss issues related to the problem contrast between the know-how and the pressure of the regional consumer market, which influenced the practice of application those slots containers in recent thirty-five years. This discussion allows reflection on cultural transformations in the context of agro-pastoral society semiarid where observes the decrease of the use and production of ceramic containers, which provides investigate changes in habits among rural people. Through participant observation and interviews senses were seized inherent in the production of pots, allowing discuss some situations around the technology involved and practices designed to containers. The test is performed through assumptions of contextual archeology added to analytical mechanisms from the agency theory and the biography of objects to interpret the meanings of practices related to those containers. This choice implies incorporate strategies from various disciplines through tangible and intangible sources to analyze and build arising interpretations of speeches of the people themselves studied and represented the theme focused. As a result, there is the idea of the principle that the application of grooves on the outer surface of the ceramic pots is made for daily use in cooling the temperature of the stored water, assessment which takes into account the credibility of brushing in producing ceramic cores and daily negotiations between consumers and traders. / O estudo ora apresentado envolve a análise dos significados do uso e fabricação de potes cerâmicos para armazenar e esfriar água no Cariri cearense dentro de uma perspectiva etnoarqueológica. A intenção é discutir questões relativas ao problema do contraste entre o saber fazer e a pressão do mercado de consumo regional, que influenciou a prática de aplicação de ranhuras naqueles recipientes nos últimos trinta e cinco anos. Esta discussão possibilita refletir sobre transformações culturais no contexto da sociedade agropastoril do semiárido, onde se observa o decréscimo da utilização e produção dos vasilhames cerâmicos, que propicia investigar mudanças de hábitos entre os habitantes da zona rural. Através da observação participante e de entrevistas foram apreendidos os sentidos inerentes à produção de potes, permitindo problematizar algumas situações em torno da tecnologia envolvida e das práticas destinadas aos recipientes. O exame é realizado através de pressupostos da arqueologia contextual somados a mecanismos analíticos provenientes da teoria da agência e da biografia dos objetos para interpretar os significados das práticas relativas àqueles vasilhames. Esta escolha implica incorporar estratégias de várias disciplinas através de fontes materiais e imateriais para analisar e construir interpretações surgidas dos discursos das próprias pessoas estudadas e representadas pelo tema enfocado. Como resultado tem-se a princípio a ideia de que a aplicação de ranhuras na superfície externa dos potes cerâmicos é realizada para obter no uso diário o arrefecimento da temperatura da água armazenada, avaliação que leva em conta a credibilidade da escovação nos núcleos produtores de cerâmica e nas negociações cotidianas entre consumidores e comerciantes.

This thesis investigates the technology of twenty-six complete vessels from the ceramic assemblages of K2 and Mapungubwe in the Limpopo Province of South Africa, from the early second millennium (AD 1000 - AD 1300). Mapungubwe is a significant pre-colonial archaeological site of social and political complexity, which lead to the emergence of one of the first known states in southern Africa. Ceramics are commonly associated with these nationally significant sites and have served mainly as chronological and regional markers to determine the cultural sequence of the Shashe Limpopo Confluence Area. Previous studies on these ceramics have paid little consideration to ceramic technology, as research for decades has focused largely on stylistic typologies. Non-invasive methods, compositional materials analysis, and macroscopic analysis provide a broad technological characterization of physical evidence left by the potter on the complete vessels, and are used to interpret aspects of the chaîne opératoire or sequence of ceramic manufacture. Though primary traces of forming and shaping techniques have often been erased by secondary forming processes such as smoothing, scraping, wiping and finishing, the fundamental technology of the vessels can nevertheless be elucidated based on a range of technical variables. This study is the first of its kind in South African archaeology, where complete vessels from a valuable research assemblage are used as a basis for understanding ceramic technology. The results enhance archaeological views of Iron Age ceramic technology, which are pertinent to the interpretation of how the ceramics were manufactured and contributes to a wider understanding of social and technical choices made by potters and related social implications. Vessels from the K2 and Mapungubwe ceramic repertoire serve to answer questions about ceramic research that relate to (a) characterization of complete archaeological ceramics, (b) evidence of technology (c) compositional data of the vessels (d) to provide anatomical data on the technological and morphological attributes of ceramic manufacture. The preliminary results point to evidence of local manufacture of K2 and Mapungubwe ceramics by means of the analysis of four steps in the chaîne opératoire: fabric, forming, firing and finishing. Tentative conclusions further demonstrate technological continuity and variability of raw materials for ceramic manufacture at K2 and Mapungubwe. The broader archaeological perspective, which emerges is one of an expanding technological society, changing technical commonalities, forms and decorative styles, and in the process, making if only subtle technological choices in the manufacture process of early second millennium AD Iron Age ceramics. / Dissertation (MA)--University of Pretoria, 2014. / gm2014 / Anthropology and Archaeology / unrestricted

Orientador: Antonio Celso Fonseca de Arruda / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica / Made available in DSpace on 2018-08-04T01:49:56Z (GMT). No. of bitstreams: 1 Galhardi_AntonioCesar_D.pdf: 10199145 bytes, checksum: 2012dd27793df7bcbe5e5b7e850aef0d (MD5) Previous issue date: 1998 / Resumo: Este estudo descreve um método inédito para a obtenção, a partir da polimerização do Metilmetacrilato, de espumas rígidas com poros intercomunicantes . Descreve, também, a sua viabilidade tecnológica na fabricação de moldes porosos para o processo de Colagem de Barbotina sob Pressão. A caracterização das espumas, quanto às propriedades dos meios porosos, foi realizada, com sucesso, definindo-se os parâmetros fundamentais para o controle da : permeabilidade , porosidade e tamanho de poros. As propriedades mecânicas das espumas foram investigadas em formulações contendo duas resinas existentes no mercado e uma obtida experimentalmente. A sensível superioridade do Móludo de Elasticidade das formulações, contendo a resina experimental, comprovou a eficiência da metodologia empregada, principalmente no que se refere à obtenção de altos pesos moleculares e sua influência nas propriedades mecânicas das espumas. A Tomografia Computadorizada foi aplicada, como metodologia de ensaio não destrutivo , na detecção de bolhas internas. A facilidade de interpretação dos resultados permitiu a imediata adequação do processo de obtenção de espumas. Para algumas espumas selecionadas , simulou-se o processo de Colagem de Barbotina sob Pressão, investigando-se a influência da temperatura da barbotina; da pressão de trabalho e da permeabilidade das espumas. Os resultados foram suficientes para validar o processo de Colagem de Barbotina sob Pressão, que apresenta maior rapidez se comparado ao processo convencional / Abstract: This study describes an unpublished method to produce rigid foams with connected pores by the emulsion polymerization of the Methylmetacrylate monomer; and its technological feasibility in the manufature of moulds by the Slip Casting under Pressure. The main properties ofthe foams were successfully evaluated for the control of the permeability , the porosity and the pore size. The mechanical properties were evaluated for the compositions of two resins available on market and an experimental resin. The superior values of the Elastic Modulus of the foam made with the experimental resin show the efficiency of the methodology applied, specially for the production ofhigh molecular weight resins, and its influence on the foam's mechanical properties. Computerised Tomography was applied as a nondestructive test to identify internal bubbles; easy and prompt interpretation of the results made it possible to change accordingly. For several selected foams a simulation ofthe process of Slip Casting under Pressure was run; and the influence ofthe slip temperature, pressure and the foam permeability were analysed. The results, alone were sufficient to validate the process of Slip Casting under Pressure, characterised by a higher velocity than that of the traditional process / Doutorado / Materiais e Processos / Doutor em Engenharia Mecânica