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Šiame baigiamajame darbe buvo nagrinėjami aukšto pravažumo (4x4) šarvuoti taktiniai automobiliai ir jų specifika. Apžvelgti, apskaičiuoti ir palyginti automobilių rodikliai. Nagrinėjamas G. Bekker metodas automobilių mobilumui nustatyti. Naudojantis BDTM metodika apskaičiuojami automobilių mobilumo parametrai. Nagrinėjamas prioritetų skirstymo ir parinkimo (MPSP) metodas. Šio metodo pagrindu sudaroma metodika, su kuria galima palyginti su kitais ir išrinkti optimalų automobilį, atsižvelgiant į prioritetines automobilio charakteristikas, bei ekspertų vertinimus. / In this final thesis gives an overview of the high utility (4x4) armored tactical vehicles and their specifications. Reviewed, calculated and compared the vehicles parameters. Was examined G. Bekker equations and method of determination vehicles mobility. Calculated vehicle mobility parameters using the BDTM methodology. Examined the modificated allocation of priorities and selection (MPSP) method. Developed high-utility (4x4) tactical vehicle selection method that allows you to compare with others and choose the optimum car, depending on the vehicle's performance, and expert assessment. This method is based on the method of MPSP and gives an opportunity to evaluate the high utility (4x4) tactical vehicle to different partial criteria and their meaning of importance.

Currently different types of transform techniques are used by different video codecs to achieve data compression during video frame transmission. Among them, Discrete Cosine Transform (DCT) is supported by most of modern video standards. The integer DCT (Int-DCT) is an integer approximation of DCT. It can be implemented exclusively with integer arithmetic. Int-DCT proves to be highly advantageous in cost and speed for hardware implementations. In particular, the 4x4 and 8x8 block size Int-DCTs have the increased applicability at the current multimedia industry because of their simpler implementation and better de-correlation performance for high definition (HD) video signals. In this thesis, we present a fast and cost-shared reconfigurable architecture to compute variable block size Int-DCT for four modern video codecs – AVS, H.264/AVC, VC-1 and HEVC (under development). Based on the symmetric structure of the transform matrices and the similarity in matrix operations, we have developed a generalized “decompose and share” algorithm to compute the 4x4 and 8x8 block size Int-DCT. The algorithm is later applied to those four video codecs. Our shared hardware approach ensures the maximum circuit reuse during the computation. The entire architecture is multiplier free and designed with only adders and shifters to minimize hardware cost and improve working frequency. Finally, the design is implemented on a FPGA and later synthesized in CMOS 0.18um technology to compare the cost and performance with existing designs. The results show significant reduction in hardware cost and meet the requirements of real time video coding applications.

Made available in DSpace on 2016-04-25T16:45:16Z (GMT). No. of bitstreams: 1 Priscila Tereza de Nadai Sastre.pdf: 1178894 bytes, checksum: ed98b9cd97b43099710583ece05a7d5d (MD5) Previous issue date: 2009-05-20 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This dissertation had as its general objective to know what types of influence of the reference group relies upon an individual, in his purchase decision process of sports utilitarian vehicles (SUV). The purchase process was assumed as social experiences that individuals make every day and the purchase of products and services is mediated by interpersonal influences. In the marketing field, the relationship between the individual s purchase decision process and the influences received by his social environment has been targeted by relevant discussions in the academic arena, as well as in the corporate world. The theoretical background describes the main constructs of the individual purchase decision process and reference group influence (interpersonal influence), from the American perspective. The justification for this study relies upon the Marketing Science Institute (MSI) priority studies, for the 2006-2008 period. These priorities were formed from research made with the MSI sponsors, who identified the role of social network in the purchase decision process as a priority study in the academic and corporate fields. The methodology approach is the case study method since the investigations aims to explore contemporaneous phenomena from the real life. Among the SUV sellers, in the Brazilian market, Troller, the Ford Motors SUVs subdivision was the one chosen to conduct this research. The data collection started with documents and secondary data of public domain. The empirical verification was supported by self-applied structured questionnaires, distributed electronically for Troller s clients. The results point that the reference group has a significant influence in the Troller s purchase decision process. The informational influence was the main type of influence observed / Esta dissertação teve como objetivo geral conhecer quais os tipos de influência que o grupo de referência exerce sobre o indivíduo, em seu processo decisório de compra de veículos utilitários esportivos ou, simplesmente, jipes 4x4. Partiu-se do princípio que as relações de troca comerciais são tidas como experiências sociais que os indivíduos realizam, normalmente, todos os dias e que o consumo de produtos e serviços é, em grande parte, moldado pela influência de outros indivíduos neste processo. No Marketing, a relação processo de decisão de compra do indivíduo e a influência recebida por parte de seu contexto social tem sido alvo de relevantes discussões tanto no âmbito acadêmico, quanto no âmbito empresarial. O construto teórico foi desenvolvido tendo-se por base as fundamentações relativas ao comportamento do consumidor, especificamente, o processo decisório de compra e a influência do grupo de referência. Atuaram como eixo conceitual os estudos preconizados pela escola americana. A justificativa para este estudo reside nas prioridades de pesquisa do Marketing Science Institute (MSI), para o biênio 2006-2008. Tais prioridades, por sua vez, estão alicerçadas em pesquisas realizadas juntamente às organizações patrocinadoras do próprio MSI (instituições acadêmicas dos Estados Unidos e corporações globais) que identificaram o estudo do papel da rede social no processo de decisão de compra, como uma das primazias de pesquisa nas instâncias acadêmica e empresarial. Decidiu-se por realizar um estudo de caso, dadas as particularidades do fenômeno em estudo e as características exploratórias determinantes da investigação, uma vez que foram estudados fenômenos contemporâneos inseridos na vida real. Dentre as montadoras fabricantes de jipes 4x4, no mercado nacional, a Troller, divisão de 4x4 pertencente à Ford Motors, foi a empresa escolhida para o desenvolvimento do estudo de caso. A coleta de informações para a realização do estudo de caso foi realizada a partir do levantamento documental de dados secundários de domínio público e da própria empresa. A verificação empírica se deu por meio de questionários estruturados e auto-aplicáveis que foram distribuídos, eletronicamente, a uma base de 2000 clientes, da Troller. A observação participante também se fez presente por meio da participação na Copa Troller, na temporada de 2008. O que se concluiu é que, de fato, há considerável influência dos grupos de referência, na decisão de compra dos consumidores dos jipes Troller. A principal forma de influência observada foi a influência informacional, seguida da influência utilitária e, por fim, a influência expressiva de valor

This thesis deals with the analysis of the car driving characteristics depending on the type of drive wheels. The first chapter defines the basic theoretical cars concept as well as procedures for determining the individual variables needed to identify the driving dynamics of vehicles. The practical part describes the plan and the progress of realized measurements on a selected pattern of vehicles, and the measured values are interpreted. The final part deals with the evaluation of the performed measurements and the data identified within these measurements.