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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.
11

A Look into the Design Process: Theory Driven Design for Behavior Change

January 2019 (has links)
abstract: As the designer is asked to design, create, or simply solve a problem, many factors go into that process. It generally begins with defining the scope or problem that undergoes an iterative process utilizing different tools and techniques to generate the desired outcome. This is often referred to as the design process. Notwithstanding the many factors that influence this process, this study investigates the use of theory for behavior change and its effect on the design process. While social behavioral theories have been extensively discussed in the realm of design, and a well-developed body of literature exists, there is limited knowledge about how designers respond to and incorporate theory into their design process. Fogg’s persuasive design (2003), Lockton’s design with intent (2009) and Tromp’s social implication framework (2011) stand as exemplars of new strategies developed towards design for behavior change that are able to empower designers’ mindsets, providing them with a uniquely insightful perspective to entice change. Instead of focusing on the effectiveness of the design end product, this study focuses on how theory-driven approaches affect the ideation and framing fragment of the design process. A workshop case study with senior design students was utilized with focused observations and post-workshop interviews to answer the research questions. This study contributes by providing a useful method of documenting a behavioral economics theory to the design process in a workshop setting. It also provides insights on how behavioral change theory application can be incorporated in a segment of the design process. / Dissertation/Thesis / Masters Thesis Design 2019
12

Global Routing in VLSI: Algorithms, Theory, and Computation

Dickson, Chris 05 1900 (has links)
<p> Global routing in VLSI (very large scale integration) design is one of the most challenging discrete optimization problems in computational theory and practice. In this thesis, we present a polynomial time approximation algorithm for the global routing problem based on an integer programming formulation. The algorithm features a theoretical approximation bound, while ensuring all the routing demands are concurrently satisfied.</p> <p> We provide both a serial and a parallel implementation, as well as develop several heuristics to improve the quality of the solution and reduce running time. Our computational tests on a well-known benchmark set show that, combined with certain heuristics, our new algorithms perform very well compared with other integer programming approaches.</p> / Thesis / Master of Science (MSc)
13

Toward a critical practice: tracing theory through design

Noonan, Hilary Ann January 1900 (has links)
Master of Landscape Architecture / Department of Landscape Architecture/Regional and Community Planning / Stephanie A. Rolley / “Toward a Critical Practice: Tracing Theory Through Design” is an exploration of Elizabeth Meyer’s idea of critical inquiry as a mode and process for professional practice as a landscape architect. Critical practice involves the application of ideas embodied in critical theory as a creative endeavor that is both self-critical and self-renewing. Critical theory is essential in bringing a deeper level of understanding to the design of landscape architecture. Critical practice is the application of critical theory to the understanding of built work and the process of design. Using Meyer’s stated intentions for this design process Noonan develops a personal framework for that process. As the framework develops it rapidly becomes multiple, overlapping, mutually supportive frameworks. Multiple perspectives are gained from using multiple viewpoints represented in theory. The frameworks serve to include the dynamics of change and provide access to a deeper understanding of the interrelatedness of forms and processes inherent to any site or project. Issues of representation become more clear and strategies are identified although this aspect of practice deserves much more attention in the future. Theories, frameworks and sources of knowledge are identified and used to question assumptions and biases, challenge orthodoxies of practice, test ideas, develop written and formal vocabulary and inspire, motivate and guide design work. Ideas and theories used in the framework are related to the formal and textual work of other designers past and present. The framework is tested through application to a design project, which is used as the case study for this paper.
14

Discursive designing theory : towards a theory of designing design

Faust, Juergen January 2015 (has links)
Motivated by the immature theoretical framework of design, this thesis employs transdisciplinary discourse to provide a contemporary and forward-looking model of design and design theory, as well as the linkages between the two, along with the necessary methodology. The discourse involves research into the current understanding of design, its principles, its practice and conceptual framework. The methodology developed and employed in this thesis can be outlined in five steps: 0. Design briefing 1. Developing a conceptual model based on the writings of Michel Foucault and Helmut Krippendorff. 2. Presenting the model in a written form. 3. Using accounts of conferences as tools for Designing Design and building monuments. 4. Interrogating the theory through an expert system. 5. Summarising and evaluating the findings. Design Briefing The present study delves into design, and into the design of theory. In Chapter A.1.6, a summary of Chapter A.0−A.1.5 is given, highlighting the underlying discourse. As shown, the theory behind this work is based on a hypothesis, which cannot be proved experimentally, or deduced from experimental data, at least at the time of its construction. Therefore, it needs to be understood that the case studies (A.3.2−A.3.5) in this thesis are not intended to serve as experiments that were conducted in order to prove the theory; rather, these case studies are design cases—products and artefacts—and should be viewed as discourse frameworks that can be adopted to design design. As described in Chapter 3.1, these are elements of monuments—in reference to Raichman (1988)—that have resulted from the discursive strategies and were designed within a community of designers, allowing the design understanding to be shaped. Methodologically, the theory is created through an indication of differences. These differences were elaborated on in the literature review, and can be explained using either logic-based or hermeneutical metaphors. As the latter approach is more flexible, it might be more applicable to the design environment. The generated knowledge can be located in three areas—design knowledge, epistemology, methodology (the process to get there), and phenomenology (the composition of the artefacts). While the main focus of this thesis has been on theory design, it was also important to delineate how to get there, as well as analyse the questionable differences between theory and practice, since they are ideal types that mark the extreme ends of a continuum (Jonsen and Toulmin 1988, p.36). The work presented in this thesis was conducted in a circular manner, like a design process, in order to encapsulate the instance. Therefore, essential topics reappear, allowing them to be reframed and newly contextualised. Chapter 0.0 to 0.7 reperesent the introductory part of this work. Thus, the content presented could be referred to as ‘the briefing’—as a parallel to a design case—to provide the background. It shows the motivation, a first hypothesis, some methodological considerations, and the research design and decisions. The aim is to provide insight into the phenomenon of interest and discuss some preconceptions. Thus, these introductory chapters provide orientation through locating some statements of the provided (design) discourse. Developing a conceptual model based on the writings of Michel Foucault and Helmut Krippendorff. As a follow up, Section A consists of several key components, and encompasses the research methodology specificity, its theoretical underpinning, and its connection to design, a reframing and contextualisation. This section also provides the means to overcome the discrepancy between researching and designing. Therefore, in Chapter A1−A1.6, a more substantial discourse of design is provided, along with the theory and the essential knowledge. Here, we can see the method in operation, as a patching of discursive statements—akin to an additive process of designing. Clearly, the attempt made here belongs to the constructivist epistemology, as the idea of design is a mental construct. Nonetheless, the aim is to provide a broad perspective of what can be presently observed in the design field. The employed methodology strategically aims to overcome the divide between designing and researching—between acting and reflecting—in order to provide a conceptual model. Still, it also makes the designing practice a conscious process, whereby theory is designed through discourse. Such discourse is revealed within the discovery of textual statements based on an extensive literature review, as well as through the discovery of textual statements from organised interactive conferences. The theory developed here is, in fact, a theory derived from theory, and is shaped through finding patterns and the simplification of the overall structure they form. In A.2, the concept of discourse and its designing quality is revealed. It shows how discourse, as the guiding method, is ‘excavated’ from the writings of Michel Foucault and Helmut Krippendorff. Methodologically, Michel Foucault’s ‘Archeology of Knowledge’ was analysed against and parallel to Helmut Krippendorff’s ‘Semantic Turn’, as these sources are complementary to each other. The goal of this process is a comparison of statements, yielding reasoning towards discourse and design discourse. In sum, this analysis helped reveal that it is a matter of design how the discourse is provided. The outcome of the aforementioned comparison is very interesting and satisfying. The findings revealed a difference in discourse, because engineering and design discourses are informed by rhetoric of design, rhetoric of deliberation, in opposite to humanistic discourse, which consumes textual objects (Perelman 1999). The discursive designing process within these chapters reveals some important elements, such as the conceptual frame of politics, referred to in Foucault’s discourse explorations. According to the author, power is a generating force in shaping discourse (Faucault 1980, p.119). In contrast, Krippendorff (1995b) sees power as emanating from language, which can be overcome through avoiding the construction of certain language. In the research presented, the designing practice that took place during the conferences, as well as the aforementioned notions, play a role, as was shown in Chapter 3. Power, as it was experienced, is unavoidable. Yet, rather than seeing it as a problem, it should be viewed as a generating force. A second more substantial question arises around the notion of discontinuity (A.2.3), which is essential in Foucault’s concept. According to Krippendorff, knowledge is not partitioned; it rather provides continuity through the various disciplines. As this research shows, this view should not be seen as an opposite to Foucault’s concept of discontinuity, because statements can refer to the same object, but coming from a discontinuous field, from various disciplines. In other words, as design discourse can be viewed as a discourse hosted by various disciplines, it is discontinuous! With respect to Foucault’s concern of grasping of statements, the main goal of this thesis is to provide support for this perspective. As the author noted, the grasping of the statements needs to follow the exact specificity of their occurrence (Foucault 1972). The prudence and success of dissociating statements from their original context to place them in a new context is questionable, since no discontinuity can be ignored (Foucault 1972). Often, rather than paraphrasing the text so that it reflects one’s own understanding of it, the result is a mere citation of the original texts and con-texts. The awareness of discontinuity does not allow for this thesis to be presented according to the positivistic paradigm.
15

Development and testing of a synthesized mid-range theory of nurse anesthetists' job satisfaction /

Norred, Carol L. January 2005 (has links)
Thesis (Ph.D. in Nursing) -- University of Colorado, 2005. / Typescript. Includes bibliographical references (leaves 225-249). Free to UCDHSC affiliates. Online version available via ProQuest Digital Dissertations;
16

A study on the implementation of the Strengthening Innovation and Practice in Secondary Education initiative for the preparation of Science, Technology, English and Mathematics (STEM) teachers in Kenya to integrate Information and Communication Technology (ICT) in teaching and learning

Hooker, Mary January 2017 (has links)
The aim of this research study was to critically appraise the innovation model in relation to teacher development for ICT use in classroom practice associated with the Strengthening Innovative Practice in Secondary Education (SIPSE) project conducted in Kenya secondary schools. The model integrated an ICT Competency Framework for Teachers (ICT-CFT) and a Technology Pedagogy and Content Knowledge (TPACK) framework into a phased modular approach for teacher professional development. The research addressed key questions related to: the object of ICT use as perceived by head teachers and teachers; and the characteristics of teacher design for ICT use in STEM teaching and learning as evidenced in classroom activities at different stages of their professional learning journey. The study used a qualitative design based research (DBR) methodology that was enhanced with the use of a ‘TPACKtivity’ lens combining TPACK and Activity Theory (AT) to explore, explicate and communicate the findings. The study was conducted with a purposive sample of twenty-four teachers, four head teachers and four schools drawn from the wider SIPSE programme intervention. The qualitative research methods included interviews and focus group discussions. Data were also drawn from documentation of lesson plans and peer-to-peer lesson observations. The findings presented participant accounts of tensions and dissonances with the introduction of technology into their school and classroom practices that reflected similar issues in the literature. However, the findings elucidated some unexpected teacher design narratives for technology use to support and innovate STEM teaching and learning. They further revealed the importance of classroom processes as the centre stage for fostering teacher collective design conversations for ICT use solutions. In this the research contributes to the current discourse by offering a TPACKtivity framework centred on authentic classroom settings as a basis for developing and appraising models of professional development for ICT use that can inform practice, policy and research.
17

Hodnocení současné praxe tvorby designu obalů a návrhy na zlepšení / Packaging design as a brand building tool

Lauermannová, Anna January 2008 (has links)
The thesis describes the packaging design theory. Then describes the czech market and packaging design. In the practical part there were interwieved 6 peoople from the czech enterprise market.At the end of the thesisi there is a packagafe o criterions of a goog packaging design accoarding to the czech experts.
18

Continuum Dislocation Dynamics Modeling of Mesoscale Crystal Plasticity at Finite Deformation

Kyle R Starkey (12476760) 29 April 2022 (has links)
<p>Over the past two decade, there have been renewed interests in the use of continuum models of dislocation to predict the plastic strength of metals from basic properties of dislocations. Such interests have been motivated by the unique self-organized dislocation microstructures that develop during plastic deformation of metals and the need to understand their origin and connection with strength of metals. This thesis effort focuses on the theoretical development of a vector-density based representation of dislocation dynamics on the mesoscale accounting for the kinematics of finite deformation. This model consists of two parts, the first is the development of the transport-reaction equations governing dislocation dynamics within the finite deformation setting, and the second focuses on the computational solution of the resulting model. The transport-reaction equations come in the form of a set of hyperbolic curl type transport equations, with reaction terms that nonlinearly couple these equations. The equations are also geometrically non-linear due to finite deformation kinematics and by their constitutive closure. The solution of the resulting model consists of two parts that are coupled in a staggered fashion, the crystal mechanics equations are lumped in the stress equilibrium equations, and the dislocation transport-reactions equations. The two sets of equations are solved by the Galerkin and First-Order System Least-Squares (FOSLS) finite element methods. A special attention is given to the accurate modeling of glissile dislocation junctions using de Rahm currents and graph theory ideas. The introduction of these measures requires the derivation of further transport relations. Using homogenization theory, we specialize the proposed model to a mean deformation gradient driven bulk plasticity model. Lastly, we simulate bulk plasticity behavior and compare our results against experiments.</p>
19

THREE-DIMENSIONAL MICROFABRICATION OF MECHANICAL METAMATERIALS VIA STEREOLITHOGRAPHY AND TWO-PHOTON POLYMERIZATION

Vaidyanath Harinarayana (14215688) 07 December 2022 (has links)
<p>  </p> <p>With the advent of femtosecond lasers in the early 1990s, ultrafast laser processing has proven to be an imperative tool for micro/nanomachining. Two-photon lithography (TPL) is one such unique microfabrication technique exploiting the nonlinear dependency of the polymerization rate on the irradiating light intensity to produce true three-dimensional structures with feature sizes beyond the diffraction limit. This characteristic has revolutionized laser material processing for the fabrication of micro and nanostructures. This research first gives a general overview of TPL, including its operating principle, experimental setup, compatible materials, and techniques for improving the final resolution of the fabricated structure. Insights to improve throughput and speed of fabrication to pave a way for the industrialization of this technique are provided.</p> <p>Following that, the report delves into the process of fabricating two true three-dimensional mechanical metamaterials via the stereolithography technique. This chapter encompasses the design, fabrication, and experimental analysis of a three-dimensional axisymmetric structure with elliptical perforations distributed periodically on the walls of the structure with varying thicknesses. Furthermore, this study discusses the significance of the elliptical perforations in terms of auxetic behavior and load-bearing capacity against a so-called plain structure under quasistatic compression loading.</p> <p>Finally, the report explores the technique of fabricating a true three-dimensional cylindrical auxetic structure via two-photon polymerization. This section of the report examines the optical setup utilized, the sample preparation procedure, and calibration experiments performed in order to fabricate a three-dimensional thin-walled right cylinder with bowtie like perforations arranged on the walls to promote the exhibition of symmetric negative Poisson’s ratio under uniaxial quasistatic compression loading.</p>
20

Investigation of Natural Adhesives

Bradley C Mcgill (13949928) 13 October 2022 (has links)
<p>Adhesives  are  found  in  almost  every  aspect  of  the  modern  world.  They  are  found  in plywood used in buildings, electronics, shoes, plumbing and in almost every facet of your daily life. Nature also has an abundance of these adhesives that are used fora multitude of applications. Some  animals, like  the  blue  mussel, use  their  adhesive  for  protection  against  ocean  waves  and predators  while other animals, such  as  the  spider, use  it  to  trap  prey. Investigation  of  theses adhesives has led to the identification of several different proteins that allow for these animals to make  their  adhesive.  Some  of  them  are  composed of rare  amino  acids that  while  other  animals use  a combination  of  inorganic  and  organic  components.  Understanding  of  these  unique adhesives  can be  a  boon  for designof future  adhesives  that  do  not  have  the disadvantagesof current day commercialized glues.</p> <p>Increasing interest  in  the  restoration  of  natural  oyster  reefs  and  the  cement  that  holds them  together  has  resulted  in  the  identification  of  the  Shelk2  protein  that  is  found  both  in  the mantle  of  the  oyster’s  shell  as  well  as  the  cement  that  holds  the  reefs  together. Gaining  an understanding  of  how  this  protein  functions  and  its  part  in  the  oyster  reef  could  be  quite beneficial  for  projects  investing  in  reef  restorations  as  well  as  underwater  adhesion.  Gathering protein  from  the  animal  for  experimentation  and  characterization  can  be  labor  intensive  and extremely challenging. Luckily, cloning technology has become a useful tool for the expression of large quantities of proteins that can be difficult or impossible to gather from the native animal. Using <em>E. coli</em>, it  is  possible  to design  and express  this protein  in  hopes  of  gaining  a  better understanding of its impact on oyster settlement and adhesion.</p> <p>Sustainability is a major downside to current day adhesives that current technologies have not  been  able  to  solve. Most adhesives  that  are  on  the  market  today  are  primarily  derived  from petroleum. Current  research  has  begun  investigating  alternatives  to  the  large   epoxy   and formaldehyde  adhesive  market,  but  the  barrier  of  entry  is  hard  to  overcome.  To  replace  these glues  the  new  material  must  be  affordable,  non-petroleum  derived,  and  available  on  a  massive scale.  These  requirements  are  hard  to  meet  for  many  materials  and  due  to  that  the  current  bio-adhesive are generally very low strength.</p> <p>The work presented here will detail the characterization, and expression of some of these natural  adhesives that  have  been  found  in  the  Eastern  oyster. Another  aspect of  this  work includes the synthesis of a new bio-based adhesive system. Utilizing biomimetic chemistry along with  sustainably  sourced  materials  a  new  adhesive  has  been  formulated that  has  comparable adhesive strength to current day commercial adhesives.</p>

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