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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.
81

[en] LEAN COMMUNICATION-CENTERED DESIGN: A LIGHTWEIGHT DESIGN PROCESS / [pt] LEAN COMMUNICATION-CENTERED DESIGN: UM PROCESSO LEVE DE DESIGN CENTRADO NA COMUNICAÇÃO

DANIEL VITOR COSTA FERREIRA 11 January 2017 (has links)
[pt] O Lean Communication-Centered Design (LeanCCD) é um processo de design de Interação Humano-Computador (IHC) centrado na comunicação, que consiste na realização de um workshop, detalhamento de metas de usuários, combinação de modelos de interação com esboços em papel simulados com usuários, apoiados por guias e quadros. A IHC é uma área que estuda o projeto e uso de tecnologia computacional, em especial a interação entre computadores e pessoas. Este estudo adaptou o Communication-Centered Design (CCD) e o eXtreme Communication-Centered Design (eXCeeD), outros processos de design centrados na comunicação fundamentados na Engenharia Semiótica (EngSem). A EngSem é uma teoria de IHC que define a interação como um processo comunicativo entre designers e usuários mediado por computadores. Abordagens e processos fundamentados nessa teoria buscam favorecer a reflexão através da adoção de modelos, questões e métodos que não gerem diretamente uma resposta ou solução para o problema, mas apoiem o designer na exploração do espaço e da natureza do problema, bem como das restrições sobre soluções candidatas. A avaliação do LeanCCD em um estudo de caso na indústria observou dificuldade na condução das atividades e na aplicação correta de algumas técnicas e conceitos. Porém, diferentemente do eXCeeD, percebemos o uso sistemático das questões que favoreciam a reflexão devido ao auxílio dos quadros e guias propostos. / [en] Lean Communication-Centered Design (LeanCCD) is a Human-Computer Interaction (HCI) design process, which consists of conducting a workshop, detailing user goals, combining interaction models with paper sketches, and testing them with users, supported by guides and templates. This study adapted the Communication-Centered Design (CCD) and the eXtreme Communication-Centered Design (eXCeeD), other communication-centered design processes grounded on Semiotic Engineering (SemEng). SemEng defines the interaction as a computer-mediated communication process between designers and users. Approaches and processes based on SemEng are not used to directly yield the answer to a problem, but to increase the problem-solver s understanding of the problem itself and the implication it brings about. Process evaluation in a case study, in the industry, proved itself difficult, both in carrying out LeanCCD activities and in the correct application of some techniques and concepts. However, unlike eXCeeD, we were able to observe a systematic use of questions that contributed to designers reflection, aided by the proposed templates and guides.
82

Stochastická analýza smykového porušování železobetonových nosníků / Stochastic analysis of shear failure of reinforced concrete beams

Kucek, Martin January 2017 (has links)
The diploma thesis is focused on a solution of the load reaction of the bridge construction from girders KA-73. Proposal methods of the nonlinear analysis by means of final elements on the stochastic and deterministic level are used for the solution of the load reaction. A simulation technique Latin Hypercube Sampling is used within the stochastic analysis. A material degradation in the form of the trussing corrosion is solved with the expected decrease of the construction lifetime. The conclusion of the thesis contains an evaluation of initial quantities of material parameters for the load reaction of the construction in the form of the sensitivity analysis.
83

Endogenic Production : subjective matter and bodily involvement

Ställborn, Nils January 2022 (has links)
The word endogenic means growing or proceeding from within, it is commonly used to describe the process of tectonic movement and earth crust formation caused by the extrusion of magmatic material. My project is a metaphorical exploration of the geological term “endogenic process” as well as an exploration of a design approach based on the term.The work explores soft form-bearing structures and textile bodies that contrast in relation to the hard framework of the rectangular room. It touches on material hierarchies in the living environment and the field of spatial design. The research explores the relationship between interior bodies and spatial frameworks. It aims to highlight the importance of the subject within the framework of the rectangular space that divides the interior of most buildings. My work involves exploring the endogenic process as a way of relating to the creative process and through the use of soft structures and drapery creating furniture that engages people with the spatial framework of the rectangular room. It is an exploration of spatial furniture that constitutes a connection and physical involvement between bodies and space, a kind of furniture providing a multiplicity of possibilities.
84

Generic design and investigation of solar cooling systems

Saulich, Sven January 2013 (has links)
This thesis presents work on a holistic approach for improving the overall design of solar cooling systems driven by solar thermal collectors. Newly developed methods for thermodynamic optimization of hydraulics and control were used to redesign an existing pilot plant. Measurements taken from the newly developed system show an 81% increase of the Solar Cooling Efficiency (SCEth) factor compared to the original pilot system. In addition to the improvements in system design, new efficiency factors for benchmarking solar cooling systems are presented. The Solar Supply Efficiency (SSEth) factor provides a means of quantifying the quality of solar thermal charging systems relative to the usable heat to drive the sorption process. The product of the SSEth with the already established COPth of the chiller, leads to the SCEth factor which, for the first time, provides a clear and concise benchmarking method for the overall design of solar cooling systems. Furthermore, the definition of a coefficient of performance, including irreversibilities from energy conversion (COPcon), enables a direct comparison of compression and sorption chiller technology. This new performance metric is applicable to all low-temperature heat-supply machines for direct comparison of different types or technologies. The achieved findings of this work led to an optimized generic design for solar cooling systems, which was successfully transferred to the market.

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