Dissertations / Theses on the topic 'Design for diversity'
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Moss, Gloria Ann. "Diversity and web design." Thesis, University of South Wales, 2011. https://pure.southwales.ac.uk/en/studentthesis/diversity-and-web-design(ca1bbe90-27f9-4a05-a63f-631817c3d81d).html.
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The ability to target consumer segments and achieve a match between the product or promotional instrument and the consumer self-concept is stressed in the marketing literature. The online quality of a website has been said to have a positive impact on intention to use a website and perform a search, with preference for a website linked to perceptions of its credibility. Website preferences cam also encourage or discourage consumers’ purchasing intentions and the perceived visual attractiveness of a website is said to have a greater impact on e-loyalty and consumer retention than traditional attributes such as product selection and price. The important impact of preferences necessitates an understanding of the factors in a website that can appeal or not to people. Unfortunately, until as recently as 2004, studies investigating website aesthetics were anchored in the universalist paradigm which assumed that reactions would be universally held rather than differentiated according to demographic variables. A Canadian study in 2005 documented differences in reaction by gender but this study was inadequate in using a single commercial stimulus which had not been selected on any particular basis. Prior to this, research on web aesthetics was rooted in the universalist aesthetic in assuming that a single set of factors would suit all tastes. The overview describes the work by the author to ascertain the extent to which website productions differ by segmentation variables and the extent to which preferences can also be segmented. The author’s work has isolated the impact of segmentation variables (gender, personality and nationality) on website productions and of gender on website preferences and the overview focuses on gender since the impact of this variable has been explored in relation to productions and preferences.
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Scharlott, William C. "Representing Diversity in the Arts Through Interaction Design." Kent State University Honors College / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1494252723818847.
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Huang, J. "Frequency diversity array : theory and design." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/624503/.
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This thesis presents a novel concept of beam scanning and forming by employing frequency diversity in an array antenna. It is shown that by applying a linear frequency shift to the CW signals across the elements, a periodically scanning beam pattern is generated and the main beam direction is a function of time and range. Moreover, when transmitting a pulse signal, the frequency diversity array (FDA) can be used for beam forming in radar applications. These properties offer a more flexible beam scanning and forming option over traditional phase shifter implementations. The thesis begins with the discussion on FDA’s array factor. It is mathematically proven that the array factor is a periodic function of time and range and the scanning period itself is a function of the linear frequency shift. Then further discussion is made when a pulsed signal is transmitted by an FDA. The requirement on the pulse width for a certain linear frequency shift is specified and corresponding signal processing technique is provided for the frequency diverse signal receiver. The thesis subsequently goes on to an electromagnetic simulation of FDA. The CST Microwave Studio is utilized to model the FDA and simulate its transient field, which allows one to verify the relationship between the scanning period and the linear frequency shift. Finally, the implementation of FDA is considered with the focus laid on the generation of the required frequency diverse signals complying with the two basic assumptions. The PLL frequency synthesis technique is introduced as an effective approach of generating the frequency diverse signals. One low cost and profile design of integer-N frequency synthesizer is presented to illustrate the basic design considerations and guidelines. For comparison, a Σ − Δ fractional-N frequency synthesizer produced by Analog Device is introduced for designs where more budget is available.
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Walker, Jacinda N. "Design Journeys: Strategies For Increasing Diversity In Design Disciplines." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469162518.
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Håkansson, Ronja. "For Relationship Diversity From a Polyamourous Perspective." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-90586.
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In this bachelor project I’m working with a topic close to my heart, in my heart and a matter of the heart. Its about how humans does intimate relationships. Specifically how people in Sweden have relationships that do not follow the monoamorous norm of Swedish society. This report goes through how one can work with a highly personal topic with the goal to reach out, to awaken awareness and inspire courage in others. How a designer in a student position can have a process that goes back and forth between ”Participating and Listening”, “Talking and Facilitating” and “Thinking and Making”: and how those roles leak into each other, and nurture the over all process. How did I give visibility to relationship diversity focusing on polyamory and worked withits community? I had a process of searching and experimenting with mediums. Words on twitter and in poems. Gathering people for workshops and conversations. Participating in a polyamourous conference, sending out “Chainletters” among its participants. Gathering inspiration and information until a materialization was needed. Finding that textile crafts feels as close to home as the topic does. Hands and sewing machines turn intangible into tangible; “My Poly Power Blanket”. The quilted materialization and representation of polyamory goes into our graduation exhibition. Where the blanket gets accompanied by the workshops “Relationship Picnic” and “Make you own Power Patch”. This report gives an overview of the complex process that happened when I worked from my heart, with a subject about hearts; polyamory.
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Hogberg, Dan. "Ergonomics integration and user diversity in product design." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/7772.
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Consideration of products' ergonomic qualities is one important component for successful product development. Product designers engaged in the core activity of product development need methods that support the consideration of ergonomics along with other product requirements. This thesis aims to address these needs. The first part of the thesis investigates how people working within product development organisations communicate with and about users of their products. The general need for methods to support communication of user aspects in product development is identified through formal interviews with product developers and a review of the management, ergonomics and design literature. The second part of the thesis studies the factors which affect the integration of ergonomics in product design. Supportive methods, including User Characters, for evoking user consideration among designers together with Overlapping methods for scheduling ergonomics evaluation in product design processes are introduced and argued. The third part of the thesis reviews and discusses computer aided ergonomics as a means for integration of ergonomics in product design. A web-based support system for effective employment of human simulation tools is developed using a participative approach and evaluated based on the system's usability. The objective of the fourth part of the thesis is to study how human simulation tools can aid designers' consideration of human diversity to accommodate users of diverse anthropometric characteristics in multivariate design problems such as automobile cockpits. The work involves the evaluation of different approaches for the generation of specific manikin families which can be used as test groups for fitting trials in the virtual design process. The research demonstrates enhancements in design methodology knowledge to support integration of ergonomics in product design processes with a focus on anthropometric diversity in vehicle design.
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Ensor, Ronda Lea. "Romaine Brooks: Embracing Diversity." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/art_design_theses/23.
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While the majority of literature written in regard to artist Romaine Brooks has focused on her portraiture of cross-dressing women, I intend to focus on other aspects of her oeuvre which are often neglected. Therefore, I will examine works depicting women produced or exhibited by Brooks during the years 1910 and 1911 when her output was at its most varied. I have divided these works into four different categories: nudes, interior scenes, balcony scenes, and portraits. These paintings prove that while Brooks painted in a traditional fashion, she also subtly challenged the role of women in art and society.
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Johnson, Bryce Wade. "Socioeconomic Diversity in Public Spaces." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83517.
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While academics and policy-makers seek to address historic segregation and its harmful impacts on communities, many such efforts have been unsuccessful. Therefore, this original research examines the role of public parks as potential sites of social and economic integration. These spaces serve as third places, or social spaces where community members regularly visit, similar to their regular visitation of their home and workplaces. In the City of Roanoke, three visited public parks serve as local third places where individuals of different social and economic backgrounds visit for various activities. However, visitors typically only interact with others similar to themselves. The exception appears to be when the third place provides a source of triangulation based in common interests. This form of triangulation is useful in establishing commonality among visitors, thus bridging existing gaps between communities. Said triangulation is successful when the third place provides a physically and socially comfortable environment affected by the space's design, location, and management. These three factors must combine to maintain a careful balance between welcoming visitors of diverse backgrounds, but also establishing a sense of comfort among visitors. Public spaces which achieve this balance realize their potential by becoming equitable third places.Master of Urban and Regional Planning
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O'Daniel, Peter Ivo. "Exploring structural diversity in nucleoside and nucleic acid drug design." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-08252005-130946/.
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Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2006.Barefield, E. Kent, Committee Member ; Beckham, Haskell W., Committee Member ; Doyle, Donald F., Committee Member ; Weck, Marcus, Committee Member ; Seley, Katherine L., Committee Chair.
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Mo, Wei. "MIMO communication systems receiver design and diversity-multiplexing tradeoff analysis /." [Ames, Iowa : Iowa State University], 2006.
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Klemp, Oliver. "Analyse und Design frequenzunabhängiger Multimode-Antennen für MIMO und diversity /." Aachen : Shaker, 2008. http://d-nb.info/988687062/04.
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Ning, Haishi. "Cooperative strategies design based on the diversity and multiplexing tradeoff." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/9497.
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This thesis focuses on designing wireless cooperative communication strategies that are either optimal or near-optimal in terms of the tradeoff between diversity and multiplexing gains. Starting from classical cooperative broadcast, multiple-access and relay channels with unit degree of freedom, to more general cooperative interference channels with higher degrees of freedom, properties of different network topologies are studied and their unique characteristics together with several advanced interference management techniques are exploited to design cooperative transmission strategies in order to enhance data rate, reliability or both at the same time. Moreover, various algorithms are proposed to solve practical implementation issues and performance is analyzed through both theoretical verifications and simulations.
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Zhao, Qiang. "New Results on Selection Diversity over Fading Channels." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31363.
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This thesis develops a mathematical framework for analyzing the average bit error rate performance of five different selection diversity combining schemes over slow, frequency non-selective Rayleigh, Nakagami-m and Ricean fading channels. Aside from the classical selection diversity, generalized selection combining and the â maximum outputâ selection methods, two new selection rules based on choosing the branch providing the largest magnitude of log-likelihood ratio for binary phase shift keying signals (with and without phase compensation in the selection process) are also investigated. The proposed analytical framework is sufficiently general to study the effects of dissimilar fading parameter and unequal mean received signal strengths across the independent diversity paths. The effect of branch correlation on the performance of a dual-diversity system is also studied. The accuracies of our analytical expressions have been validated by extensive Monte-Carlo simulation runs. The proposed selection schemes based on the log-likelihood ratio are attractive in the design of low-complexity rake receivers for wideband CDMA and ultra wideband communication systems.Master of Science
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Mahajan, Yash. "PRADA-TF: Privacy-Diversity-Aware Online Team Formation." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/103857.
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In this work, we propose a PRivAcy-Diversity-Aware Team Formation framework, namely PRADA-TF, that can be deployed based on the trust relationships between users in online social networks (OSNs). Our proposed PRADA-TF is mainly designed to reflect team members' domain expertise and privacy preserving preferences when a task requires a wide range of diverse domain expertise for its successful completion. The proposed PRADA-TF aims to form a team for maximizing its productivity based on members' characteristics in their diversity, privacy preserving, and information sharing. We leveraged a game theory called Mechanism Design in order for a mechanism designer as a team leader to select team members that can maximize the team's social welfare, which is the sum of all team members' utilities considering team productivity, members' privacy preserving, and potential privacy loss caused by information sharing. To screen a set of candidate teams in the OSN, we built an expert social network based on real co-authorship datasets (i.e., Netscience) with 1,590 scientists, used the semi-synthetic datasets to construct a trust network based on a belief model called Subjective Logic, and identified trustworthy users as candidate team members. Via our extensive simulation experiments, we compared the seven different TF schemes, including our proposed and existing TF algorithms, and analyzed the key factors that can significantly impact the expected and actual social welfare, expected and actual potential privacy leakout, and team diversity of a selected team.Master of Science
In this work, we propose a PRivAcy-Diversity-Aware Team Formation framework, namely PRADA-TF, that can be deployed based on the trust relationships between users in online social networks (OSNs). Our proposed PRADA-TF is mainly designed to reflect team members' domain expertise and privacy preserving preferences when a task requires a wide range of diverse domain expertise for its successful completion. The proposed PRADA-TF aims to form a team based on members' characteristics in their diversity, privacy preserving, and information sharing so as to maximize the performance of the team. We leveraged a game theory called Mechanism Design in order for a mechanism designer as a team leader to select team members that can maximize the team's social welfare, which is the sum of all team members' utilities considering team productivity, members' privacy preserving, and potential privacy loss caused by information sharing. To screen a set of candidate teams in the OSN, we built an expert social network based on real co-authorship datasets with 1,590 scientists, used the semi-synthetic datasets to construct a trust network representing the trust relationship between the users in OSNs, and identified trustworthy users as candidate team members. Via our extensive simulation experiments, we compared the seven different team formation (TF) schemes, including our proposed and existing TF algorithms, and analyzed the key factors that can significantly impact the expected and actual social welfare, expected and actual potential privacy leakout, and team diversity of a selected team.
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Svirplys, Saulius. ""Creeping diversity": Housing design in Bramalea, Canada's first suburban satellite city." Thesis, University of Ottawa (Canada), 2007. http://hdl.handle.net/10393/27488.
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Much has been written on postwar suburbs in North America, and their impact on society. What are missing are histories of the housing that exists within these suburbs, and how both the idea behind suburbs, and the realities of the time, had an impact on the design of such housing. For this work, Bramalea, Ontario, was chosen as a case study location to begin exploring suburban housing design. Begun in 1958, Bramalea was unique in that it was designed as Canada's first suburban satellite city, which meant it was planned as a self-sufficient community. Houses in Bramalea were a product of both their location, but also of outside influences. Economic conditions, technological advances, and design trends, all influenced the history and evolution of suburban housing. Popular culture and the changing ideas about the nature of suburbs also played an important role in the houses that were built in Bramalea.
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Wencel, Eric. "Northeast Kansas City: a study of neighborhood diversity and urban design." Kansas State University, 2013. http://hdl.handle.net/2097/15692.
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Master of Regional and Community PlanningDepartment of Landscape Architecture and Regional and Community Planning
Jason Brody
This report acts as an independent study which contributes to the author’s participation in the 2012-2013 Kansas City Design Center planning and urban design studio. The project focuses on Independence Avenue in Kansas City, MO, the commercial and transportation backbone of seven neighborhoods, collectively known as Northeast Kansas City. Residents of these neighborhoods place great value in the “diversity” which exists in their neighborhoods, and have made it clear that this should be encouraged as a major part of the Northeast’s identity. This inspired the author to pursue a deeper understanding of the idea of diverse neighborhoods, how they fit into the “sustainable development” consciousness, and ultimately how one can plan and design for neighborhood diversity. The resulting study consisted of two levels of analysis. First, analyzing the mixture of age, sex, household type, race, and income level at the regional, city, and neighborhood scale, in order to understand what social diversity means in the Kansas City context, and define how diverse Northeast Kansas City neighborhoods are. The second was an analysis of conditions in the built environment. Using the Scarritt Renaissance and Lykins neighborhoods, and a common commercial district/social seam between the two as a case study, the author intended to analyze how successful or unsuccessful the typical Northeast neighborhood is at encouraging diverse populations. Ultimately, these analyses yielded two main conclusions. The first is that neighborhood diversity means drastically different things depending on how you define and measure the term. The second is the notion that social seam commercial districts are a unique spatial typology, which requires special design consideration, and can be most catalytic to setting the tone for future growth. Finally, the author concludes with the idea that one cannot necessarily plan or design for diverse neighborhoods, but they can do so in ways which empower diversity, and be conducive to things which support diverse neighborhoods. However, the built environment only makes up a portion of the things which influence neighborhood diversity, requiring an involved and invested community who values social diversity in their neighborhood.
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Souza, Omari Abijah. "Chasing Vertical: Diversity & Recognition in the field of Graphic Design." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1499991971680417.
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Walton, Jessica. "Boomerang Studio: Community Design for Action." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4244.
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An arts education space, focusing on concepts of design thinking aimed at providing low income middle and high school teens of color the opportunity to learn about interior design, architecture and crafts. Ultimately, Boomerang Studio hopes to engage students in the world of design as a means of creating greater diversity within these disciplines.
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Snodgrass, Natalie Snodgrass. "Facilitating Diversity: The Designer's Role in Supporting Cultural Representations Through Multi-Script Type Design and Research." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1543259950281861.
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Allee, Jessica. "New Deal Art Now: Reframing the Artifacts of Diversity." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1536.
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New Deal Art Now offers a sampling of the breadth of the Works Progress Administration and Federal Art Projects (WPA/FAP), calling attention to the skills, histories, and social identities of an extraordinarily diverse spectrum of professional and amateur artists funded by the United States federal government during the Great Depression. The New Deal, a major economic stimulus initiative that ran from 1935-1943, included the Works Progress Administration Federal One Projects, encompassing fine art, music, theater, writing, and design. These projects provided economic support and cultural enrichment to hundreds of thousands of Americans, in the form of jobs, entertainment, and education in the arts. New Deal Art Now seeks to reframe a period of United States artistic production that is often narrowly cast in exhibitions and their related literature on the subject. The theme of diversity is explored through several critical lenses, such as questioning the relationship between art and artifact, considering that many creative works of the New Deal function as both. The majority of the exhibited artworks are juxtaposed against one another to challenge the designations that contemporary material culture traditionally assigns them. Showcasing 48 objects in total, the exhibits include painting, sculpture, educational models, archival film, and archival audio, which are juxtaposed alongside contemporary paintings, photography, and music, created in conjunction with this exhibition. By situating these works (as well as the very categories of amateur and professional, art and artifact, museum and archive, past and present) in productive relation to one another this exhibition argues for the significance of all of these works and artists to the diverse history of twentieth-century American art.
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Voksepp, Emmy. "Dyeing diversity : Exploring interrelations between plant dyeing techniques, design methods and biodegradable materials in textile design." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-603.
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This work explores the expressive potential of plant dyeing techniques in relation to weaving by proposing a method in regard to non-toxic containment, biodegradable materials and ethical values. Textile design and ethical values have been combined to create an “Textethical Design Method”. The personal ethical values that have been used in this project are based on a “diversity perspective”. These consist of openness in material choices that wish to expand the view of quality in relation to textile material, but also by connecting and evolving the expression through knowledge between the material selections, production and aesthetics. This project focus on finding plant dyes that are uncharacteristic for the earth tones that plant dyeing techniques often are associated with, where red cabbage was the most successful pigment. The textile techniques that will be used are plant dyeing on a multiplied layered weaved surface to investigate depth through color and three-dimensional shape. The project strives to contribute with development in design methods, sustainability and broader the field of plant dyeing techniques.
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Tu, Yu-Wei. "Application Of Parametric Design To User Center Products." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368086255.
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Jobs, Magnus. "Design and Performance of Diversity based Wireless Interfaces for Sensor Network Nodes." Licentiate thesis, Uppsala universitet, Fasta tillståndets elektronik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-198734.
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The main focus of the work presented in this licentiate thesis concerns antenna design, adaptive antenna control and investigation on how the performance of small wireless nodes can be increased by inclusion of multiple antennas. In order to provide an end-user suitable solution for wireless nodes the devices require both small form factor and good performance in order to be competitive on the marked and thus the main part of this thesis focuses on techniques developed to achieve these goals. Two prototype systems have been developed where one has been used by National Defence Research Agency (FOI) to successfully monitor a test-subject moving in an outdoor terrain. The other prototype system shows the overall performance gain achievable in a wireless sensor node when multiple antennas and antenna beam steering is used. As an example of how to include multiple antennas in a wireless node the concept of using dual conformal patch antennas for wireless nodes is presented. The proposed antenna showed an excess of 10 dB gain when using a single driven antenna element as would be the case in a system utilizing antenna selection combining. When used as a 2-element phased array, up to 19 dB gain was obtained in a multiscattering environment. Using the second order resonance the proposed antenna structure achieves low mutual coupling and a reflection coefficient lower than -15 dB. The presented antenna design shows how a dual antenna wireless node can be designed using discrete phase control with passive matching which provides a good adaptive antenna solution usable for wireless sensor networks. The inclusion of discrete phase sweep diversity in a wireless node has been evaluated and shown to provide a significant diversity gain. The diversity gain of a discrete phase sweep diversity based system was measured in both a reverberation chamber and a real life office environment. The former environment showed between 5.5 to 10.3 dB diversity gain depending on the detector architecture and the latter showed a diversity gain ranging from 1 to 5.4 dB. Also the performance of nodes designed to be placed in a high temperature and multiscattering environment (the fan stage of a jet engine) has been evaluated. The work was carried out in order to verify that a wireless sensor network is able to operate in such a multiscattering environment. It was shown that the wireless nodes are able to operate in an emulated turbine environment based on real-life measured turbine fading data. The tested sensor network was able to transmit 32 byte packages using cyclic redundancy check at 2 Mbps at an engine speed of 13.000 rpm.WISENET
WISEJET
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Ilg, Michael Peter. "The diversity and evolution of competition : an ideal proposed for regulatory design." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/753.
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This dissertation presents a concept of diversity as an ideal of international
economic regulation. The theme of diversity refers to the differentiation of individual
competitive strategies. The first advantage of such differentiation is argued to be as a
means of stable and adaptive progress; increasing the number of possible techniques with
which to meet as yet unforeseen challenges. As the first principle of diversity entails a
method for systemic responsiveness, the second principle gives content to this method
and states that social goals should serve as the incentives encouraging competitors toward
differentiation. The advantage offered by the second principle is that social non-economic
goals may be advanced in the present, as individuals attempt new routes to personal
reward via the satisfaction of collective objectives that previously may have had little or
no economic value.
As an ideal of diversity contemplates a method of systemic incentives, rather than
mandated outcomes, the location of innovation remains individual competitors.
Accordingly, the ideal of diversity is justified and articulated from a basis in individual
rights. Diversity is argued to be the optimal set of principles which individuals would
select if given the ability to design a new competitive system. In joining a method of
differentiation with the added social content of non-economic priority, diversity offers a
unique blend of economic efficiency and equity; or of self-interest and concern for the
welfare of others. Diversity allows an individual to think of their own pursuit of gain, but
also and simultaneously further collective goals by selecting the priorities that should
influence competitors toward differentiation. Other’s welfare becomes a route to
individual success.
The project progresses through three broad conceptual stages. First, international
problems of market failure are considered in light of strategies and the economic
impulses toward self and system defeating cycles of competition. Second, a redefinition
of legal and economic progress is offered to meet conditions of unpredictability, and to
arrive at an evolutionary method that encourages constantly competitive variation with
which to meet society’s future challenges. Third, an evolutionary approach to
international regulation is translated into a priority system of legal rights.
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Klemp, Oliver [Verfasser]. "Analyse und Design frequenzunabhängiger Multimode-Antennen für MIMO und Diversity / Oliver Klemp." Aachen : Shaker, 2008. http://d-nb.info/1162791101/34.
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Bó, Inácio G. L. "Essays in Matching Theory and Mechanism Design." Thesis, Boston College, 2014. http://hdl.handle.net/2345/bc-ir:104172.
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Thesis advisor: Utku ÜnverThis dissertation consists of three chapters. The first chapter consists of a survey of the literature on affirmative action and diversity objective in school choice mechanisms. It presents and analyzes some of the main papers on the subject, showing the evolution of our understanding of the effects that different affirmative action policies have on the welfare and fairness of student assignments, the satisfaction of the diversity objectives as well as the domain of policies that allows for stable outcomes. The second chapter analyzes the problem of school choice mechanisms when policy-makers have objectives over the distribution of students by type across the schools. I show that mechanisms currently available in the literature may fail to a great extent in satisfying those objectives, and introduce a new one, which satisfies two properties. First, it produces assignments that satisfy a fairness criterion which incorporates the diversity objectives as an element of fairness. Second, it approximates optimally the diversity objectives while still satisfying the fairness criterion. We do so by embedding "preference" for those objectives into the schools' choice functions in a way that satisfies the substitutability condition and then using the school-proposing deferred acceptance procedure. This leads to the equivalence of stability with the desired definition of fairness and the maximization of those diversity objectives among the set of fair assignments. A comparative analysis also shows analytically that the mechanism that we provide has a general ability to satisfy those objectives, while in many familiar classes of scenarios the alternative ones yield segregated assignments. Finally, we analyze the incentives induced by the proposed mechanism in different market sizes and informational structures. The third chapter (co-authored with Orhan Aygün) presents an analysis of the Brazilian affirmative action initiative for access to public federal universities. In August 2012 the Brazilian federal government enacted a law mandating the prioritization of students who claim belonging to the groups of those coming from public high schools, low income families and being racial minorities to defined proportions of the seats available in federal public universities. In this problem, individuals may be part of one or more of those groups, and it is possible for students not to claim some of the privileges associated with them. This turns out to be a problem not previously studied in the literature. We show that under the choice function induced by the current guidelines, students may be better off by not claiming privileges that they are eligible to. Moreover, the resulting assignments may not be fair or satisfy the affirmative action objectives, even when there are enough students claiming low--income and minority privileges. Also, any stable mechanism that uses the current choice functions is neither incentive compatible nor fair. We propose a new choice function to be used by the universities that guarantees that a student will not be worse off by claiming an additional privilege, is fair and satisfies the affirmative action objectives whenever it is possible and there are enough applications claiming low--income and minority privileges. Next, we suggest a stable, incentive compatible and fair mechanism to create assignments for the entire system
Thesis (PhD) — Boston College, 2014
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Economics
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Luebbering, Candice Rae. "The Cartographic Representation of Language: Understanding language map construction and visualizing language diversity." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/37543.
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Language maps provide illustrations of linguistic and cultural diversity and distribution, appearing in outlets ranging from textbooks and news articles to websites and wall maps. They are valuable visual aids that accompany discussions of our cultural climate. Despite the prevalent use of language maps as educational tools, little recent research addresses the difficult task of map construction for this fluid cultural characteristic. The display and analysis capabilities of current geographic information systems (GIS) provide a new opportunity for revisiting and challenging the issues of language mapping. In an effort to renew language mapping research and explore the potential of GIS, this dissertation is composed of three studies that collectively present a progressive work on language mapping. The first study summarizes the language mapping literature, addressing the difficulties and limitations of assigning language to space before describing contemporary language mapping projects as well as future research possibilities with current technology. In an effort to identify common language mapping practices, the second study is a map survey documenting the cartographic characteristics of existing language maps. The survey not only consistently categorizes language map symbology, it also captures unique strategies observed for handling locations with linguistic plurality as well as representing language data uncertainty. A new typology of language map symbology is compiled based on the map survey results. Finally, the third study specifically addresses two gaps in the language mapping literature: the issue of visualizing linguistic diversity and the scarcity of GIS applications in language mapping research. The study uses census data for the Washington, D.C. Metropolitan Statistical Area to explore visualization possibilities for representing the linguistic diversity. After recreating mapping strategies already in use for showing linguistic diversity, the study applies an existing statistic (a linguistic diversity index) as a new mapping variable to generate a new visualization type: a linguistic diversity surface. The overall goal of this dissertation is to provide the impetus for continued language mapping research and contribute to the understanding and creation of language maps in education, research, politics, and other venues.Ph. D.
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Mohamad, Radziah. "Unity in diversity : a design projection for a participatory housing in Kuala Lumpur." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/68741.
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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1992.Includes bibliographical references (p. 96-98).
This thesis is an exploration towards an alternative design approach for a public housing in Malaysia. It stems from a conviction that the design of public housing should be based on the lifestyles and ways of living of the people it is intended for. Since the Malaysian people are composed of three diverse cultures: Malay, Chinese, and Indian, this thesis proposes a participatory approach which allows each group to accommodate their cultural needs in the design of their dwelling places. Recognizing that public and communal activities are very much a part of the living environment, the thesis attempts to accommodate these activities into the design process. Because each of the three cultures has different ways and needs, the design of both private dwellings and public/communal spaces is based on the supports concept, which is organized around a system of frameworks. This thesis is the second part of a two part work: Part I is a research of the various types of dwellings: traditional, squatter, and public housing; to discover the important principles and elements that persist in all the dwelling types shared by Malays, Chinese and Indians. Part II is a design projection of those principles for a participatory housing project in Kuala Lumpur, involving four of the thirty families surveyed in Part I research. The design exercise includes exploring various transformation possibilities to produce a whole range of variations that satisfy the needs of the diverse Malaysian cultures. Note: Part I and Part II are documented separately into a S.M.Arch.S and M.Arch theses respectively. Each document is a complete, independent thesis, but very much interrelated. Therefore, it is recommended that they be read in sequence.
Radziah Mohamad.
M.Arch.
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Kock, Beaudry E. (Beaudry Evan). "Addressing agricultural salinity in the American West : harnessing behavioral diversity to institutional design." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/65182.
Full textAbstract:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 2010.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 357-389).
Salinity accumulation in the Lower Arkansas Basin (LAB) of Colorado threatens environmental quality, the agricultural economy and the potential for efficient reuse of water. Salinity is a threat to "hydraulic sustainability", since it will affect societal and environmental sustainability in a system heavily dependent on engineered structures for its water supply. Institutional solutions are preferable, being usually cheaper, quicker, and more reversible than infrastructure. Market institutions - water quality trading markets - have been often applied in the past to deal with salinity problems, but have been largely ineffective despite theoretical promise. Explanations for such institutional failure typically assume that stakeholders are boundedly- rational economic actors, but I review evidence that this is empirically unjustified, may be insufficiently explanatory, and precludes consideration of more innovative behavioral change solutions. Through collaborative work with basin stakeholders, I developed an agent-based model - "ArkAgent" - which simulates a water quality trading market; the water use and market interactions of basin actors; and basin hydrology. I conduct experiments to show that a simulated neoclassical market institution is less effective at reducing salinity when we make more realistic provisions for attitudinal and behavioral heterogeneity among resource users. I show that the use of post-hoc informational feedbacks as alternative non-monetary institutional incentives can address this performance issue, even in the face of conflicting economic pressures. I further demonstrate that exploiting social networks in non-economic incentive design can go even further in improving sustainability benefits. This work makes new theoretical contributions by showing how our models of institutional performance are critically dependent on behavioral assumptions; and that consequently our institutions for addressing hydraulic sustainability challenges may have incentives poorly matched to real behavioral complexity. This work also shows how an appropriately designed market institutional intervention in the LAB could achieve salinity reduction benefits over an 8 year period. Many of the model's practical insights are also relevant to large salinity-threatened basins across the western United States. The ArkAgent model provides an example of how we can use collaborative systems modeling and empirically-based behavioral assumptions to develop more robust institutions for sustainability.
by Beaudry E. Kock.
Ph.D.
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Deliyska, Yana. "Can I Depend on You? : A methodology for working together in + Changing the world." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-97123.
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This independent thesis project has been the development of a methodology of working which is anchored in dependence on one another and collectivist ideals within art and design work. I have taken my community, the Design + Change BA program student body, as a stakeholder throughout this process. The methods are actions and practices which I have been gathering with fellow classmates in conversation. I am using the medium of a conversation which I define not as an exact moment in time but rather a continuous long-term dwelling-with, while also iterating on appropriate tools in facilitating this conversation, in order to take the idea of living and working as a dependent collective and run it through with people, addressing their concerns (and mine) along the way. The methods are simple, yet their simplicity depends on a mindset which many are fearful of, the group mindset. To learn, live and work as a group with the belief that a group is as strong as its weakest link, points to a certain letting go. It directly touches on one of the biggest individualistic insecurities, that of having to depend on anything but yourself. I see an orientation toward dependence necessary for a + Change-oriented collectivist mindset. However, the task that I have set for myself with this project is not to convince that this is the new, better story we should believe, I am working with our ability to temporarily adopt this mindset, to shift between paradigms. There is one thing that unites us when we first arrive in the + Change classroom, and that is the faith that a society of fairness is possible. We soon understand that together we are stronger than individually, yet, we find it hard to work with someone who does not share our vision, our utopia, our mindset. So, we drift toward those who do, unintentionally creating a space of division (and oppression), the very thing we are trying to + Change globally. This is the gap that I want this project to bridge, through the assumption that the biggest influence in our + Change system is the individualist paradigm.
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Macoukji, Fred. "Evaluating an Existing Training Design in a New Context: All-Inclusive Multicultural Diversity Program." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6892.
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The extent to which diversity has positive or negative effects on an organization can be attributed to the way in which diversity is managed (most commonly through diversity training). More often than not, organizations fail to validate training, therefore the current study adapted a training that successfully changed manager attitudes in a different context and implemented a perspective taking approach using language that was all-inclusive in order to determine if it was better at changing diversity relevant attitudes and behaviors than standard diversity training models. The results indicate that the training was effective in improving diversity relevant attitudes. Additionally, the results supported full mediation for the role of attitude change in inducing behavioral change. Results from the study provide both researchers and practitioners with practical implications for both research and practice in the fields of diversity and inclusion, as well as training design.
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Valli, Marilia [UNESP]. "Nubbe natural products, source of molecular diversity for the design of new anticancer agents." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/110702.
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000796531.pdf: 5589932 bytes, checksum: 23400d4937d9c4df5a1ed4c87d102fff (MD5)Os produtos naturais são uma importante fonte de inspiração para o desenvolvimento de novos fármacos. O presente trabalho visou identificar produtos naturais bioativos que pudessem ser usados como modelo para o planejamento de novos compostos com propriedades antitumorais. A falta de dados organizados é ainda uma das dificuldades das áreas de produtos naturais e química medicinal. Portanto, a compilação de dados disponíveis sobre os metabólitos secundários sejam de espécies vegetais ou de outras fontes é de grande valor. Esse fato nos motivou a propor como primeiro objetivo deste projeto, a criação de uma base de dados contendo informações botânicas, químicas e biológicas dos metabólitos secundários obtidos e publicados pelo NuBBE durante 15 anos. A base de dados poderá ser útil não apenas para a pesquisa em química de produtos naturais atual do grupo, mas para todos interessados em estudos de planejamento de moléculas bioativas, metabolômica e dereplication, já que está disponível para acesso livre na internet. Um artigo científico descrevendo a criação da base de dados foi publicado na revista Journal of Natural Products em 2013. Os compostos da base de dados foram utilizados como fonte de moléculas para uma triagem virtual baseada na estrutura do receptor com a proteína tubulina para a identificação de moduladores dessa proteína. Baseado nos resultados de triagem virtual foi realizada a avaliação biológica in vitro das substâncias utilizando a proteína tubulina e ensaios de migração celular (wound healing e câmara de Boyden). Os ensaios biológicos indicaram uma série de guanidinas e a piplartina como principais compostos bioativos dentre os avaliados. A piplartina foi selecionada como modelo para o planejamento de novos compostos, pois apresentou relevante inibição de migração celular, além de estar descrito na literatura como citotóxico e...
Natural products are an important source for the design of new drugs. This thesis aimed at the identification of bioactive natural products to be used as models for the design of compounds with antitumor properties. The lack of organized data is still one of the drawbacks in the natural products and medicinal chemistry area. Therefore, the compilation of accessible data of secondary metabolites from plant species or other sources is of great value, especially for the identification of molecular leads. This fact inspired us to propose as first objective of this thesis, the creation of the NuBBE database (NuBBEDB) containing botanical, chemical, and biological information of the secondary metabolites obtained and published by NuBBE in 15 years. This database can be useful not only for the current research in natural products of the group, but for the scientific society interested in bioactive compounds, metabolomics, and dereplication. A scientific paper describing the creation of the database was published in the Journal of Natural Products in 2013. NuBBEDB compounds were used as molecular source for the virtual screening with the protein tubulin. Based on the results of the virtual screening the biological evaluation of selected compounds was performed with the protein tubulin, and cell migration assays (Wound Healing and Boyden Chamber). The results of the biological assays indicated a series of guanidines and piplartine as active compounds. Piplartine was selected to be a model for the design of new compounds because it inhibited cell migration and is described in the literature as cytotoxic and selective, an interesting profile for this project. A series of 5 analogue compounds were designed and synthesized aiming at a better understanding of structure activity relationship and improvement of the biological activity. The compound designed by molecular simplification showed activity in the cell...
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Zhang, Dongbo. "Wireless multiuser communication systems diversity receiver performance analysis, GSMuD design, and fading channel simulator /." [Ames, Iowa : Iowa State University], 2007.
Find full text
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Valli, Marilia. "Nubbe natural products, source of molecular diversity for the design of new anticancer agents /." Araraquara, 2014. http://hdl.handle.net/11449/110702.
Full textAbstract:
Orientador: Vanderlan da Silva BolzaniCo-orientador: Adriano Defini Andricopulo
Banca: Ian Castro-Gamboa
Banca: Flávio da Silva Emery
Banca: Norberto Peporine Lopes
Banca: Sylvie Michel
Resumo: Os produtos naturais são uma importante fonte de inspiração para o desenvolvimento de novos fármacos. O presente trabalho visou identificar produtos naturais bioativos que pudessem ser usados como modelo para o planejamento de novos compostos com propriedades antitumorais. A falta de dados organizados é ainda uma das dificuldades das áreas de produtos naturais e química medicinal. Portanto, a compilação de dados disponíveis sobre os metabólitos secundários sejam de espécies vegetais ou de outras fontes é de grande valor. Esse fato nos motivou a propor como primeiro objetivo deste projeto, a criação de uma base de dados contendo informações botânicas, químicas e biológicas dos metabólitos secundários obtidos e publicados pelo NuBBE durante 15 anos. A base de dados poderá ser útil não apenas para a pesquisa em química de produtos naturais atual do grupo, mas para todos interessados em estudos de planejamento de moléculas bioativas, metabolômica e dereplication, já que está disponível para acesso livre na internet. Um artigo científico descrevendo a criação da base de dados foi publicado na revista Journal of Natural Products em 2013. Os compostos da base de dados foram utilizados como fonte de moléculas para uma triagem virtual baseada na estrutura do receptor com a proteína tubulina para a identificação de moduladores dessa proteína. Baseado nos resultados de triagem virtual foi realizada a avaliação biológica in vitro das substâncias utilizando a proteína tubulina e ensaios de migração celular (wound healing e câmara de Boyden). Os ensaios biológicos indicaram uma série de guanidinas e a piplartina como principais compostos bioativos dentre os avaliados. A piplartina foi selecionada como modelo para o planejamento de novos compostos, pois apresentou relevante inibição de migração celular, além de estar descrito na literatura como citotóxico e...
Abstract: Natural products are an important source for the design of new drugs. This thesis aimed at the identification of bioactive natural products to be used as models for the design of compounds with antitumor properties. The lack of organized data is still one of the drawbacks in the natural products and medicinal chemistry area. Therefore, the compilation of accessible data of secondary metabolites from plant species or other sources is of great value, especially for the identification of molecular leads. This fact inspired us to propose as first objective of this thesis, the creation of the NuBBE database (NuBBEDB) containing botanical, chemical, and biological information of the secondary metabolites obtained and published by NuBBE in 15 years. This database can be useful not only for the current research in natural products of the group, but for the scientific society interested in bioactive compounds, metabolomics, and dereplication. A scientific paper describing the creation of the database was published in the Journal of Natural Products in 2013. NuBBEDB compounds were used as molecular source for the virtual screening with the protein tubulin. Based on the results of the virtual screening the biological evaluation of selected compounds was performed with the protein tubulin, and cell migration assays (Wound Healing and Boyden Chamber). The results of the biological assays indicated a series of guanidines and piplartine as active compounds. Piplartine was selected to be a model for the design of new compounds because it inhibited cell migration and is described in the literature as cytotoxic and selective, an interesting profile for this project. A series of 5 analogue compounds were designed and synthesized aiming at a better understanding of structure activity relationship and improvement of the biological activity. The compound designed by molecular simplification showed activity in the cell...
Doutor
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Hoekman, David, Katherine E. LeVan, George E. Ball, Robert A. Browne, Robert L. Davidson, Terry L. Erwin, C. Barry Knisley, et al. "Design for ground beetle abundance and diversity sampling within the National Ecological Observatory Network." WILEY, 2017. http://hdl.handle.net/10150/624368.
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The National Ecological Observatory Network (NEON) will monitor ground beetle populations across a network of broadly distributed sites because beetles are prevalent in food webs, are sensitive to abiotic factors, and have an established role as indicator species of habitat and climatic shifts. We describe the design of ground beetle population sampling in the context of NEON's long-term, continentalscale monitoring program, emphasizing the sampling design, priorities, and collection methods. Freely available NEON ground beetle data and associated field and laboratory samples will increase scientific understanding of how biological communities are responding to land-use and climate change.
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Aduwo, Akinyemi Tolulope. "An Opportunistic Routing Protocol Design for Wireless Networks: A Physical Layer Perspective." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9721.
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Ad hoc networking research has received considerable attention in recent years as it represents the next phase of networking evolution. Efficient and reliable routing of data from the source to destination with minimal power consumption remains the crux of the research problem. Fading mechanisms inherent in wireless communications can impact the packet routing mechanisms in these types of networks. In this thesis, we develop a mathematical framework for evaluating several network diversity schemes that take advantage of the random nature of fading to provide/ enhance the network performance. The efficacy of these different network diversity mechanisms are examined in slow-fading, frequency non-selective Rice and Nakagami-m multipath fading channels. Performance metrics such as the end-to-end outage probability and the end-to-end average symbol error rate are studied in the analysis of these types of networks with the proposed network diversity schemes. Numerical results reveal that the proposed schemes can offer significant power efficiency improvement in a variety of operating scenarios of practical interest.Master of Science
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Leise, Katherine Marie. "Re-envisioning South Omaha urban parks with community diversity in mind." Kansas State University, 2015. http://hdl.handle.net/2097/19020.
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Master of Landscape ArchitectureDepartment of Landscape Architecture/Regional and Community Planning
Howard Hahn
Public parks provide essential green space for people to congregate, exercise, and respite from the city. Urban public parks in the United States began with Frederick Law Olmsted and Calvert Vaux’s Central Park in the mid-1800s (Cranz & Boland, 2004). Since then, planners and designers continue to design urban parks to best serve residents. Therefore, understanding user recreation patterns and preferences is critical for urban park design. Several factors influence leisure styles, including ethnicity, that need to be considered by planners and designers. This study examines parks in South Omaha, Nebraska. Residents living in this area make up over ten different ethnic groups. Notably, Omaha’s largest Hispanic community concentration resides in South Omaha. Through quantitative and qualitative research including site analysis, a literature search, precedent studies, and community interviews, important design considerations emerged. This project presents design considerations and a conceptual redesign for two urban parks in South Omaha: Lynch Park and Spring Lake Park. The designs incorporated the leisure preferences and recreation patterns as revealed through interviews of the majority Hispanic community as well as European, Asian, and African minority ethnic groups. Precedent studies and literature research further informed redesign decisions by providing background knowledge on leisure research, design form, and demographic trends. Nevertheless, urban parks should ultimately respond to the users, regardless of cultural backgrounds, to meet the needs and requirements of all South Omaha residents.
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Aijkens, Julia. "Gender and the Architectural Lighting Design Team; A Study into the Real and Perceived." Thesis, KTH, Ljusdesign, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297632.
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Studies suggest that diversity is advantageous to group work. As lighting design teams become increasingly diverse, there is an increased opportunity for innovation as well as miscommunication. In an effort to improve communication and inter-team empathy, this master’s thesis explores the implications of gender on the architectural lighting design collaborative team. Based on previous research, a survey was conducted of architectural lighting designers of any gender located in the US. This thesis concludes that a gap exists in the gendered perceptions among colleagues in a lighting design environment. In addition, it cannot be assumed that tendencies seen in the general public are representative of architectural lighting designers. This research culminates in the conclusion that increased diversity within teams strengthens and supports design problem solving, in line with previous work done on this topic.
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Annavajjala, Ramesh. "Cross-layer design of wideband CDMA systems and cooperative diversity for wireless ad hoc networks /." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3222054.
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Thesis (Ph. D.)--University of California, San Diego, 2006.Title from first page of PDF file (viewed September 20, 2006). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 139-145).
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Crozier, Sarah Elizabeth. "Investigating Stress and Gender Diversity in the Temporary Clerical Agency Workforce : A Mixed Method Design." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508629.
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Brolin, Erik. "Anthropometric diversity and consideration of human capabilities : Methods for virtual product and production development." Doctoral thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-12248.
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Contemporary product and production development is typically carried out with the support of computer tools where the design of products and workstations are originated and evaluated within virtual environments. Ergonomics addresses factors important to consider in the product and production development process to ensure a good fit between humans and the items being designed. Digital human modelling (DHM) tools enable simulations and analyses of ergonomics in virtual environments. Anthropometry is central when using DHM tools for product and production development to ensure that the design fits the intended proportion of the targeted population from a physical perspective. Several methods have been prescribed to consider the anthropometric diversity that exists within human populations. Still many DHM based simulations in product and production development processes are done with approaches that are poor in representing anthropometric diversity. Hence, there is a need for better tools and methods that would support DHM tool users to more effectively and efficiently consider anthropometric diversity in the design process. In this thesis current methods for anthropometric diversity considerations have been reviewed and new methods and functionality have been developed and implemented in a DHM tool. Mathematical models have been developed to consider three specific parts important to the consideration of anthropometric diversity: generation of suitable test cases, prediction of missing anthropometric data and implementation of more diverse anthropometric variables such as strength and flexibility. Results show that the proposed methods are accurate and advantageous compared to approaches often used in industry today. The mathematical models for generation of suitable test cases and prediction of missing anthropometric data have been implemented in an anthropometric software module. The module has undergone usability testing with industry DHM tools users. The developed anthropometric module is shown to answer to relevant needs of DHM tool users and fit into the work processes related to DHM simulations and ergonomics analyses utilised in industry today.
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Cairns, Amy J. "Structural Diversity in Crystal Chemistry: Rational Design Strategies Toward the Synthesis of Functional Metal-Organic Materials." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3455.
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Metal-Organic Materials (MOMs) represent an important class of solid-state crystalline materials. Their countless attractive attributes make them uniquely suited to potentially resolve many present and future utilitarian societal challenges ranging from energy and the environment, all the way to include biology and medicine. Since the birth of coordination chemistry, the self-assembly of organic molecules with metal ions has produced a plethora of simple and complex architectures, many of which possess diverse pore and channel systems in a periodic array. In its infancy however this field was primarily fueled by burgeoning serendipitous discoveries, with no regard to a rational design approach to synthesis.
In the late 1980s, the field was transformed when the potential for design was introduced through the seminal studies conducted by Hoskins and Robson who transcended the pivotal works of Wells into the experimental regime. The construction of MOMs using metal-ligand directed assembly is often regarded as the origin of the molecular building block (MBB) approach, a rational design strategy that focuses on the self-assembly of pre-designed MBBs having desired shapes and geometries to generate structures with intended topologies by exploiting the diverse coordination modes and geometries afforded by metal ions and organic molecules.
The evolution of the MBB approach has witnessed tremendous breakthroughs in terms of scale and porosity by simply replacing single metal ions with more rigid inorganic metal clusters whilst preserving the inherent modularity and essential geometrical attributes needed to construct target networks for desired applications. The work presented in this dissertation focuses upon the rational design and synthesis of a diverse collection of open frameworks constructed from pre-fabricated rigid inorganic MBBs (i.e. [M(CO2)4], [M2(RCO2)4], [M3O(RCO2)6], MN3O3, etc), supermolecular building blocks (SBBs) and 3-, 4- and 6-connected organic MBBs. A systematic evaluation concerning the effect of various structural parameters (i.e. pore size and shape, metal ion, charge, etc) on hydrogen uptake and the relative binding affinity of H2-MOF interactions for selected systems is provided.
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Silva, Fábio José. "Design and performance evaluation of turbo FDE receivers." Master's thesis, Faculdade de Ciências e Tecnologia, 2010. http://hdl.handle.net/10362/4975.
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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do Grau de Mestre em Engenharia Electrotécnica e de ComputadoresIn recent years, block transmission techniques were proposed and developed for broadband wireless communication systems, which have to deal with strongly frequency-selective fading channels. Techniques like Orthogonal Frequency-Division Multiplexing (OFDM)and Single Carrier with Frequency Domain Equalization (SC-FDE) are able to provide high bit rates despite the channel adversities. In this thesis we concentrate on the study of single carrier block transmission techniques considering receiver structures suitable to scenarios with strongly time-dispersive channels. CP-assisted (Cycle Pre x) block transmission techniques are employed to cope with frequency selective channels, allowing cost-e ective implementations through FFT-based (Fast Fourier Transform) signal processing. It is investigated the impact of the number of multipath components as well as the diversity order on the asymptotic performance of SC-FDE schemes. We also propose a receiver structure able to perform a joint detection and channel estimation method, in which it is possible to combine the channel estimates, based on training sequences, with decision-directed channel estimates. A study about the impact of the correlation factor estimation in the performance of Iterative Block-Decision Feedback Equalizer (IB-DFE) receivers is also presented.
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Akho-Zahieh, Maryam Mahmoud. "Design and Analysis of Multicarrier Multicode Wavelet Packets Based CDMA Communication Systems with Multiuser Detection." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1149006699.
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Choi, Seyeong. "Design and performance evaluation of RAKE finger management schemes in the soft handover region." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1489.
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Mkhonto, T. J., and A. Muller. "Challenges facing higher education curriculum reform, design, and management in the 21st century : an epistemological perspective." Journal for New Generation Sciences, Vol 7, Issue 1: Central University of Technology, Free State, Bloemfontein, 2009. http://hdl.handle.net/11462/523.
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Published ArticleHigher education curriculum reform is a worldwide phenomenon induced by both the internal and external environments of higher education functioning. While a variety of factors are attributed to these changing environments, this paper focuses mainly on the epistemological domain characterising these changes. As the fundamental "business" of higher education, "knowledge" is perceived in this discussion as the essential terrain in which the competing global-local (glocal) interests and concerns unfold. Based on a case study model of two higher educational institutions with traditionally disparate academic cultures, the paper concludes with a trilogy of models posited as facilitating space for epistemological diversity.
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Kanprachar, Surachet. "Modeling, Analysis, and Design of Subcarrier Multiplexing on Multimode Fiber." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/26744.
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This dissertation focuses on the use of subcarrier multiplexing (SCM) in multimode fibers, utilizing carrier frequencies above what is generally utilized for multimode fiber transmission, to achieve high bit rates. In the high frequency region (i.e., frequencies larger than the intermodal bandwidth), the magnitude response of multimode fiber does not decrease monotonically as a function of the frequency but is shown to become relatively flat (but with several deep nulls) with an amplitude below that at DC. The statistical properties of this frequency response at high frequencies are analyzed. The probability density function of the magnitude response at high frequencies is found to be a Rayleigh density function. The average amplitude in this high frequency region does not depend on the frequency but depends on the number of modes supported by the fiber. To transmit a high bit rate signal over the multimode fiber, subcarrier multiplexing is adopted. The performance of the SCM multimode fiber system is presented. The performance of the SCM system is significantly degraded if there are some subcarriers located at the deep nulls of the fiber. Equalization and spread spectrum techniques are investigated but are shown to be not effective in combating the effects of these nulls. To cancel the effects of these deep nulls, training process and diversity coding are considered. The basic theory of diversity coding is given. It is found that the performances of the system with training process and the system with diversity coding are almost identical. However, diversity coding is more appropriate since it requires less system complexity. Finally, the practical limits and capacity of the SCM multimode fiber system are investigated. It is shown that a signal with a bit rate of 1.45 Gbps can be transmitted over a distance up to 5 km.Ph. D.
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Hollis, J. B. "An investigation into the design and performance of base station antenna diversity in digital mobile radio networks." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260278.
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Tsai, Hsiao-ping, and 蔡曉萍. "WLAN Polarization Diversity Antenna Design." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/90585781163752767211.
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碩士國立臺灣大學
電機工程學系
85
In an indoor radio environment plagued by the severe spatial fading and temporal fading effects of multipath, diversity schemes usually required. This thesis proposes a flat diversity antenna, consisting of two cross-polarized dipole antennas selectly excited by a PIN diode at the feeding point, to reduce the fading effects in the indoor environment. Results presented here provide a comparison between measurement and simulation results of input impedance and radiation pattern. Parameters studies of the antennas are also presented. To verify the diversity effects of this antenna, measurement for propagation characteristics was made in one of NTU EE laboratories at 2.4 GHz. The diversity gain is forward to be at least 3dB at 99% signal availability.
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Wu, Chun-Hsien, and 吳俊賢. "Design of Reconfigurable Quadri-Polarization Diversity Antenna." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/04904087747860073780.
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碩士國立交通大學
電信工程系所
94
This thesis is devoted in design of the reconfigurable planner microstrip aperture coupled quadri-polarized antenna. Nowadays, the polarization diversity is more and more attracted in communication system. It is effective to counter the fading loss caused by multi-path effects and double the channel capacities. Also, polarization diversity increases the SNR and performance of the communication systems greatly. The polarization diversity is applied in WLAN、RFID and mobile communication that prove it is very important in communication systems. Majority of the polarized antennas own dual-polarization characteristics but few polarized antennas can provide four polarization senses. In this thesis, three planar reconfigurable quadri-polarization microstrip aperture-coupled patch antennas are proposed. They can switch the different polarization scenes by controlling the pin-diodes embedded in the feeding network.