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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.
151

Design–theoretical and empirical, A research project inn design theory including the devolpment of a prototype for a symbol system that represents tastes of wine

Nordegren, Annica January 2004 (has links)
The thesis presents a research project in graphic design including the development of a symbol system that represents tastes of wine as consumer information. The thesis has three main chapters; design, theory and empirical foundation. The design chapter clarifies the design concept and its evolution from a traditional standpoint to its present state in the international area of design research as design theory. The theoretical chapter presents a map of concepts in order to explain problems and practical solutions in the design process. The concepts are based on the philosophical ideas of Ernst Cassirer and Ludwig Wittgenstein, and concern interpretation of sense information, symbols and signs, picture and image. The design of the symbol system concerns the experience of taste, as a translation from words to pictures. The empirical chapter comprehends both a description of the design process and of the empirical research. The method used is prototyping with a reference group of branch experts. The empirical research has evaluated the possibility to interpret, learn, use and understand the symbol system. The method used is a survey with questionnaires to a group of wine consumers
152

Warehouse Redesign Process: A case study at Enics Sweden AB

Daraei, Maryam January 2013 (has links)
Nowadays warehousing became one of the most important and critical part in supply chain systems due to the fact that it consumes a considerable part of logistic cost. Designing phase of warehousing system is the most important part in warehousing since most of the strategic and tactical decisions should be taken in this phase. Majority of academic papers are primarily analysis oriented and does not give a systematic method and techniques as a basis for warehouse redesign. So there is a need to develop a structured procedure that can be applied for different type of warehouses. Therefore the purpose of this thesis is to develop a process for redesigning production warehouses, and analyzing major problems during redesign steps. The thesis is designed as a case study, and a mix of quantitative and qualitative methods were used for data collection and data analysis. The methodology focuses around the warehousing process and redesign steps as described in the literature. Results of the thesis develop a seven steps procedure for redesigning of the production warehouse, also different problems and challenges are faced during redesign steps. It was tried to choose the best redesigning method which fit with the characteristics of the warehouse, in order to cover the space reduction of the warehouse with the consideration of existing facilities and reducing of cost. In addition, the performance of the current warehouse system was evaluated based on current design of the warehouse in order to avoid repeating of same mistake in redesign process. Storage assignment policy as one of the redesign steps was discussed and a framework for storage system of the components were suggested. The findings of the thesis to some extent can be applicable to other production warehouses. Further research is suggested for more specific results and new developed redesign methods for all types of warehouses.
153

Exploring Islamic Geometries

Al-Ainati, Maryam J. 07 August 2012 (has links)
Islamic design is a rich art form with spiritual and meditative meaning expressed through its infinite pattern. The iterative process of creating pattern, unified yet diverse, is an intri-cate geometric path conveying conceptual exploration. Process of form development in Is-lamic patterns defines its growing design, seeking explicit relationships between unity and multiplicity. As the grid expands and patterns unfold, new concepts are introduced for pat-tern exploration and formation. Reoccurring focal points of the Islamic geometries mark significant moments in which these patterns take form. By fusing traditional Islamic design fundamentals with contemporary concepts for interiors, I expand the realm of this rich art form from a two dimensional form to a three dimensional structure.
154

Improvements of storage application

Runius, Christian January 2009 (has links)
Windy Scandinavia is the manufacturer of the luxury yacht Windy 52 Xanthos. There is a storage application in the aft sofa on the boat that doesn’t live up to the standard and functionality level that Windy represents. This report describes the mechanical design process of this storage application, which currently has bad functionality and is expensive for Windy in production. The aim of the project was to develop the existing storage application to a low cost application. Simple and effective for Windy to produce and assemble, with the directives of access to the front or from above to the sofa. A feasibility study of the existing application was made to get a picture of disadvantages and advantages to keep for further concepts. The concept development included three steps; each step implied further development in level of detail. Starting with a range of concepts covering all different possibilities of access to the storage space, and ending up with a couple of concepts developed in detail with costs and knowledge of productions methods. The result became a standard application; a hatch with gas dampers. The reasons why this became the result was because of the low cost, simplicity and functionality. Small modifications of existing moulds and no new components or production methods needed. Conclusion of the result is that it fulfils the requirement specification and thereby is a proper result. The conceptual design phase generated many different concepts, from these concepts a result satisfying the requirements emerged.
155

Exploring the effects of different fidelities in an early design process of mobile prototyping

Danielsson, Pehr-Henric January 2010 (has links)
There are a vast number of research and studies undertaken within the domain of user-centered design concerning the design process of an artifact, but still there are questions being raised of the relatively new and successful field of mobile design. During recent years mobile technology have surpassed the standardized thoughts of how to prototype and evaluate such a ubiquitous device. The paper addresses this predicament by discussing aspects of fidelity differences in an early design process of a mobile design. The example being presented refers to a design study of an iPhone-application, where two different types of prototypes were created and user tested, a low-fidelity paper prototype and a mixed-fidelity interactive prototype. The paper sets focus on the various differences between these fidelities closely related to the case. It also reflects on how mobile design approaches can mature during the early stages of a design process.
156

Hållbara projekteringsverktyg : Från byggnadsinformationsmodell till simulering – en utvärdering av Revit och Virtual Environment

Rydberg, Henrik January 2012 (has links)
This study examines the use of building modeling and energy simulations in the design process  of  a  building.  The  take-off  point  is  the  notion  of  energy  simulations  being needed early and throughout the building design process, and that the lack of energy simulations may be explained by the fact that they are time consuming and therefore often too expensive. A greater interoperability between software tools used by relevant disciplines,  such  as  the  architect  and  the  energy  specialist,  would  create  smoother workflows, which would reduce this cost and open up for more frequent and iterative energy  simulation  processes.  The  study  is  an  assessment  of  the  modeling  tool  Revit and  the  simulation  tool  Virtual  Environment  and  whether  they  can  create  smoother workflows, and make leeway for a more frequent use of energy simulations throughout the  design  process.  It  also  investigates  the  limitations  of  what  can  be  examined  by simulations in Virtual Environment. This will hopefully help clarify the future role of energy  simulations  in  design  processes.  The  method  is  a  trial  by  error  approach  of testing the two software tools by building and simulating a model. The results of these tests  show  that  the  workflow  is  not  optimal  (and  therefore  time  consuming)  for frequent  and  iterative simulations  throughout the  design  process,  but  it  also  reveals some  great  possibilities  of  what  can  be  performed  with  these  two  powerful  tools  at hand.  Further  development  with  regards  on  platform  independency  of  the  building information  model,  including  seamless  exporting  and  importing,  seems  necessary  to strengthen the future role of energy simulations.
157

How do small companies generate and select their ideas? : A Multiple Case Study with a design management perspective

Allgaier, Benjamin, Cosson, Guillaume January 2012 (has links)
Companies that want to compete in the actual business environment need to be innovative. The shortening of product life cycles and the increasing competition force the companies to successfully come up with new ideas. In previous research some quantitative studies have been done on small companies using design management, notably in Italy and Spain. Sweden is both known for its small companies and its design. The purpose of the study is to explore design management in small Swedish companies.  This thesis aims to continue exploring the field of design management especially in small companies. We outline the following research questions: “How do small companies using design management generate their ideas?” and “How do small companies using design management select their ideas?”. To find an answer, we reviewed relevant literature concerning this topic and based on this we developed a theoretical frame including our own research platform.  Concerning our methodological approach, we choose the abductive approach since it enables us answering our research questions by extending our theoretical framework for this complex topic. Our research strategy is a qualitative study and our research design is a multiple case study using semi-structured interviews.  Our empirical findings consist of four interviews divided in two sets. The interviews were conducted in London, Gothenburg and Skellefteå. The first set of interviews addressed design management consultancies with the aim to have an overview of how small companies generate and select their ideas. The second set of interviews addressed small companies in Northern Sweden. Our findings are a synthesis of the broad view of the consultants and the case specific views of the small companies’ managers.  From these interviews, we have concluded that the design management knowledge in Swedish small companies varies and is rather rare. Nevertheless, small companies can follow design management principles without knowing the term design management (what we call silent design management). Also, the small companies we have interviewed do not use always their network to innovate but also sometimes innovate to maintain and develop their network, even ending sometimes with a joint venture with external partners. Relationships between external partners and small companies’ representatives are consequently a very important factor while finding and selecting ideas. We have analyzed design as a strategic tool and design management as a way to have a long-term strategy. We have deduced from our interviews that design management can be considered as a dynamic capability, acquired in our cases by a corporate culture or internal processes. The design process seems to be more iterative in small companies because they seem to guess more and less estimate their expected outcomes. However, a clear vision streamlines the design process, especially in small companies using design management.  We gladly recommend further research in this field, to check if the results of our research are generalizable or to look for new research gaps.
158

Integrating Safety Issues in Optimizing Solvent Selection and Process Design

Patel, Suhani Jitendra 2010 August 1900 (has links)
Incorporating consideration for safety issues while designing solvent processes has become crucial in light of the chemical process incidents involving solvents that have taken place in recent years. The implementation of inherently safer design concepts is considered beneficial to avoid hazards during early stages of design. The application of existing process design and modeling techniques that aid the concepts of ‘substitution’, ‘intensification’ and ‘attenuation’ has been shown in this work. For ‘substitution’, computer aided molecular design (CAMD) technique has been applied to select inherently safer solvents for a solvent operation. For ‘intensification’ and ‘attenuation’, consequence models and regulatory guidance from EPA RMP have been integrated into process simulation. Combining existing techniques provides a design team with a higher level of information to make decisions based on process safety. CAMD is a methodology used for designing compounds with desired target properties. An important aspect of this methodology concerns the prediction of properties given the structure of the molecule. This work also investigates the applicability of Quantitative Structure Property Relationship (QSPR) and topological indices to CAMD. The evaluation was based on models developed to predict flash point properties of different classes of solvents. Multiple linear regression and neural network analysis were used to develop QSPR models, but there are certain limitations associated with using QSPR in CAMD which have been discussed and need further work. Practical application of molecular design and process design techniques have been demonstrated in a case study on liquid-liquid extraction of acetic acid-water mixture. Suitable inherently safer solvents were identified using ICAS-ProCAMD, and consequence models were integrated into Aspen Plus simulator using a calculator sheet. Upon integrating flammable and toxic hazard modeling, solvents such as 5-nonanone, 2-nonanone and 5-methyl-2-hexanone provide inherently safer options, while conventionally-used solvent, ethyl acetate, provides higher degree of separation capability. A conclusive decision regarding feasible solvents and operating conditions would depend on design requirements, regulatory guidance, and safety criteria specified for the process. Inherent safety has always been an important consideration to be implemented during early design steps, and this research presents a methodology to incorporate the principles and obtain inherently safer alternatives.
159

Two Evolutionary Models For Reconceptualizing Architectural Ideas And The Architectural Design Process

Anay, Hakan 01 September 2008 (has links) (PDF)
This study puts forward two complementary evolutionary models and explores the potential of the proposed models and the related theses by employing two case studies. The theoretical/conceptual framework of the study refers to architectural theory, design research, and evolutionary epistemology. The study mainly involves application of some key ideas from evolutionary epistemology, Popper&amp / #8217 / s three-world ontology, and the theory of evolution to the field of architecture. The first model is about the nature of the architectural ideas or thought contents and it introduces the idea of conceptual inheritance and an evolutionary conception of architectural ideas. The model proposes a framework that offers an understanding of the life and existence of architectural ideas and their inheritance. It also puts forward an expanded view of architectural ideas that conceives all the thought contents, which architectural designs (or works) and the architectural design process might concern, as architectural ideas. In order to illustrate and discuss the model, some of the architectural ideas carried by Mario Botta&amp / #8217 / s single-family house in Breganzona are selected and the evolutionary lineage of these ideas have been identified and examined in their instances in some of Botta&amp / #8217 / s own designs and in some designs from architectural tradition. The second model is an evolutionary model of the architectural design process. While emphasizing the evolutionary or selectionist character of architectural design in terms of process and inner dynamics, the model conceives architectural design as a process consisting of the two stages of forming/making, and evaluation/selection where in the first stage formative ideas, in the second, selective conditions are operational. In order to illustrate the potentialities of the model, the sketches and the drawings produced during the design process of Mario Botta&amp / #8217 / s single-family house in Breganzona are examined.
160

High temperature, permanent magnet biased, homopolar magnetic bearing actuator

Hossain, Mohammad Ahsan 30 October 2006 (has links)
The EEC (Electron Energy Corporation) in conjunction with the National Aeronautics and Space Administration is researching the magnetic bearings for an alternative to conventional journal or ball bearings. The purpose of this research was to design and develop a high-temperature (1000ºF) hybrid Magnetic Bearing using High Temperature Permanent Magnets (HTPM), developed by the EEC for high performance jet engines at high speeds that supply loads of 500 lbf. Another objective is to design and build a test rig fixture to measure the load capacity of the designed bearing. The permanent magnet bias of the Homopolar radial magnetic bearing reduces the amount of current required for magnetic bearing operation. This reduces the power loss due to the coil current resistance and improves the system efficiency because the magnetic field of the HTPM can suspend the major portion of the static load on bearing. A high temperature radial magnetic bearing was designed via an iterative search employing 3D finite element based electromagnetic field simulations. The bearing was designed to produce 500 lbf of force at 1000ºF and the design weight is 48 lbs. The bias flux of the Homopolar radial bearing is produced by EEC HTPM to reduce the related ohmic losses of an electromagnetic circuit significantly. An experimental procedure was developed to measure actual load capacity of the designed bearing at the test rig. All the results obtained from the experiment were compiled and analyzed to determine the relation between bearing force, applied current and temperature.

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