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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.
41

Comunidades de deficientes físicos no Orkut: em busca de uma sociabilidade inclusiva na era digital / Communities of physically disable people in Orkut: searching an inclusing sociability in the digital age

Lian Sulwen Tai 30 May 2008 (has links)
Fundação Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro / Este trabalho consiste na identificação de novas configurações sociais a partir dos meios digitais de comunicação, especificamente o Orkut. Buscamos compreender de que forma os deficientes físicos utilizam este instrumento com fins de socialização e pertencimento. Para isso, mapeamos as comunidades de deficientes físicos no Orkut e identificamos seus usos, além de realizarmos entrevistas com membros das comunidades em questão. Notamos que, diferentemente dos contatos mistos travados no mundo virtual, nas comunidades específicas de deficientes, eles expõem sua deficiência como marca que legitima o pertencimento ao grupo. Os contatos travados nessas comunidades não se restringem ao espaço próprio da comunidade, mas se estendem, não só por outros instrumentos do mundo virtual, mas também às relações no espaço físico. Notamos também que o maior interesse dos membros dessas comunidades é conhecer pessoas com quem eles possam se relacionar, utilizando o espaço virtual como conector, pelo qual se explora o perfil do outro e se apresenta, com fins de se expor. Essa utilização busca suprir a lacuna que há no espaço das cidades, que não oportuniza muitos encontros entre deficientes, enquanto o mundo virtual oferece essa possibilidade com fácil acesso. / Our aim in this research is to identify new social configurations that emerged from the digital media, specifically the Orkut. We try to understand how the physically disabled people use this instrument to get to socialize and belong to a group. For this purpose, we mapped the communities of physically disabled people in the Orkut and identified their uses, beyond interviewing members of these communities. We noticed that, in the communities that are specifically for disabled people, they expose their disabilities as a symbol of belonging, in a different way of the mixed interactions. The people who get to know each other in those communities dont socialize only in that specific space, but they maintain contact in other virtual and physical spaces. We also noticed that the main interest of the members of those communities is to get to know other people, so they can have relationships, using that virtual space as a connector, where they can explore the others profile and expose themselves. This way of using the community is an alternative to the gap that exists in the cities, that dont offer many opportunities of meeting. Meanwhile, the virtual world offers this possibility with easy access.
42

Alternating Physically Based Renderingin Low-lit Areas

Kupersmidt, Itamar January 2018 (has links)
Background The increase in screen resolution has increased from HD to Ultra-HDduring the last decade. A modern game today with Ultra-HD resolution has overeight million pixels that need to be shaded, combined with the expensive shadingmethod Physically Based Rendering the equations needed to calculate each pixel arenumerous. Objectives This the study aims to remove complexity from the Physically BasedRendering shading method in the form of roughness in low-lit areas. The low-lit areaswill instead be rendered without the roughness attribute. By removing roughnessless calculations will be performed. Methods To remove roughness from low-lit areas the light had to be approximatedusing a diffuse model. The pixel was later converted via Hue Saturation PerceivedBrightness to calculate the brightness. If the pixel was under the given threshold,the pixel was shaded using a low-complexity Physically Based Rendering implemen-tation without roughness. A user study was conducted using Unity game enginewith eight participants being asked to compare different stimuli all rendered withdifferent thresholds for darkness with a reference picture. The aim of the study wasto ascertain if the stimuli without roughness had any perceivable difference from thereference. Results The results of the study show the majority of the participants noticinga difference when comparing the stimuli with the reference. The areas affected wasnot only the low-lit areas but the whole scene. The energy conversion without theroughness value made the whole scene appear darker. Conclusions The roughness value is an integral part of energy conversion andwithout it, the scene will appear much darker. While the majority of participantsnoticed a difference, the lowest threshold resembled the original the most
43

Comunidades de deficientes físicos no Orkut: em busca de uma sociabilidade inclusiva na era digital / Communities of physically disable people in Orkut: searching an inclusing sociability in the digital age

Lian Sulwen Tai 30 May 2008 (has links)
Fundação Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro / Este trabalho consiste na identificação de novas configurações sociais a partir dos meios digitais de comunicação, especificamente o Orkut. Buscamos compreender de que forma os deficientes físicos utilizam este instrumento com fins de socialização e pertencimento. Para isso, mapeamos as comunidades de deficientes físicos no Orkut e identificamos seus usos, além de realizarmos entrevistas com membros das comunidades em questão. Notamos que, diferentemente dos contatos mistos travados no mundo virtual, nas comunidades específicas de deficientes, eles expõem sua deficiência como marca que legitima o pertencimento ao grupo. Os contatos travados nessas comunidades não se restringem ao espaço próprio da comunidade, mas se estendem, não só por outros instrumentos do mundo virtual, mas também às relações no espaço físico. Notamos também que o maior interesse dos membros dessas comunidades é conhecer pessoas com quem eles possam se relacionar, utilizando o espaço virtual como conector, pelo qual se explora o perfil do outro e se apresenta, com fins de se expor. Essa utilização busca suprir a lacuna que há no espaço das cidades, que não oportuniza muitos encontros entre deficientes, enquanto o mundo virtual oferece essa possibilidade com fácil acesso. / Our aim in this research is to identify new social configurations that emerged from the digital media, specifically the Orkut. We try to understand how the physically disabled people use this instrument to get to socialize and belong to a group. For this purpose, we mapped the communities of physically disabled people in the Orkut and identified their uses, beyond interviewing members of these communities. We noticed that, in the communities that are specifically for disabled people, they expose their disabilities as a symbol of belonging, in a different way of the mixed interactions. The people who get to know each other in those communities dont socialize only in that specific space, but they maintain contact in other virtual and physical spaces. We also noticed that the main interest of the members of those communities is to get to know other people, so they can have relationships, using that virtual space as a connector, where they can explore the others profile and expose themselves. This way of using the community is an alternative to the gap that exists in the cities, that dont offer many opportunities of meeting. Meanwhile, the virtual world offers this possibility with easy access.
44

En förskola för alla : en kvalitativ undersökning kring förskolans fysiska tillgänglighet för alla barn

Karleskans, Thomas January 2017 (has links)
The aim of this study is to see how physically available preschools are for all children and too see if the children meets limitations, and if so are these limitations holding back the children’s independence. I also want to see what the teachers think of the physical availability for all children in preschool. The questions I have focused on for this study is: • Is the indoor environment physical available for all children in preschool, and if not, does it limit the children´s independence? • Which are the teacher´s views on availability for all children in preschool? In order to answer the questions I have done observations and inventories, I have also interviewed three teachers to back up my results. My conclusion is that there are a few limitations that the children meet on a daily basis. Most of it takes place in the hallway and in bathrooms/baby changing rooms. The analysis shows that the hallway is too small to include all children and to make it completely available for everyone. Also in the bathrooms/ baby changing room there are difficulties to include all children. For example is the changing table to high and the children needs to climb up a stepladder and not all children have that possibility. A thing like this limits the independence for some children. To do this research I have used a phenomenological perspective.
45

Uma contribuição a acessibilidade e a mobilidade em veiculos automotivos atraves de dispositivo mecatronico / Machatronics divice for acessibility, ergonomy and mobility in Automotive Vehicles for handcap people

Cáceres, Mauro Sérgio Juarez 07 July 2004 (has links)
Orientadores: Helder Anibal Hermini, Jose Manoel Balthazar / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica / Made available in DSpace on 2018-08-04T01:18:55Z (GMT). No. of bitstreams: 1 Caceres_MauroSergioJuarez_M.pdf: 11525505 bytes, checksum: 074f979a2df3a27d9e765aec6119b0bf (MD5) Previous issue date: 2004 / Resumo: Este trabalho foi inspirado em aspectos legais, sociais e tecnológicos.O objetivo deste estudo foi desenvolver um dispositivo mecatrônico de acessibilidade, ergonomia e mobilidade em veículos automotivos, considerando pessoas com necessidades especiais. A acessibilidade é um dos fatores crlticos para a inclusão do indivíduo com deficiência no mundo do trabalho e da educação. A contribuição deste trabalho situa-se no incremento da acessibilidade do indivíduo com deficiência, promovendo sua autonomia relativa; isto é, o usuário se locomove até seu veículo, adentra nele, conduz o veículo ao seu destino e o deixa de forma autônoma sem ajuda de outras pessoas. Este trabalho simulou as condições de ergonomia e de interação dos dispositivos de acessibilidade e mobilidade desenvolvidos, com os veículos automotivos, através de simulação computacional dos movimentos dos dispositivos interno e externo ao veículo com o controle lógico implementado. Neste estágio do trabalho encontram-se disponíveis a concepção da idéia, os desenhos, as simulações computacionais e a lógica de controle, necessários para a posterior construção dos dispositivos e sua montagem em veículos automotivos adaptados para a condução por pessoas com deficiências / Abstract: This study was inspired by the legal, social and technological aspects of acessibility for handcap people.The purpose of the study was to develope a virtual mechatronic device to acessibility for handcap people.The acessibility is a critical factor for the inclusion of the disabled people in the work and educacional enviroments. The contribution of this study is to help handcap people to have relative autonomy like: moving towards the car, getting in, driving to a destination and getting out by themselves.This study simulate the ergonomic conditions and the devices interaction of the acessibility and mobility, developed whith automotive vehicle through computacional simulations of the intemal and external devices moviments.Through computational simulation, we tested tbe moviments. It was also made the implementation of the controllogic. On this stage of the swdy we provide the concept, the draws, the computation simulations and the logic centrol; necessary parameters for build the devices and its assembly to tbe adapted cars for handcap people / Mestrado / Mecanica dos Sólidos e Projeto Mecanico / Mestre em Engenharia Mecânica
46

A Robust Authentication Methodology Using Physically Unclonable Functions in DRAM Arrays

Hashemian, MaryamSadat 07 September 2020 (has links)
No description available.
47

Tailored Traceability and Provenance Determination in Manufacturing

Adam Dachowicz (9139691) 29 July 2020 (has links)
<p>Anti-counterfeiting and provenance determination are serious concerns in many industries, including automotive, aerospace, and defense. These concerns are addressed by ensuring traceability during manufacturing, transport, and use of goods. In increasingly globalized manufacturing contexts, one-size-fits-all traceability solutions are not always appropriate. Manufacturers may not have the means to re-tool production to meet marking, tagging, or other traceability requirements. This is especially true when manufacturers require high processing flexibility to produce specialized parts, as is increasingly the case in modern supply chains. Counterfeiters and saboteurs, meanwhile, have a growing attack surface over which to interfere with existing supply chains, and have a leg up when implementation details of traceability methods are widely known. There is a growing need to provide solutions to traceability that i) are particularized to specific industrial contexts with heterogeneous security and robustness requirements, and ii) reliably transmit information needed for traceability throughout the product life cycle. </p> <p><br></p><p>This dissertation presents investigations into tailorable traceability schemes for modern manufacturing, with a focus on applications in additive manufacturing. The primary contributions of this dissertation are frameworks for designing traceability schemes that i) achieve traceability through recovery of manufacturer-specified signals, from simple identity information to more detailed strings of provenance data, and ii) are tuned to maximize information carrying capacity subject to the available data and intended use cases faced by the manufacturer.</p> <p><br></p><p>In the vein of physically unclonable function (PUF) literature, these frameworks leverage the intrinsic information present in material structure, such as phase or grain statistics. These structures, being functions of largely random and uncontrollable physical and chemical processes, are by their nature uncontrollable by a manufacturer. According to the frameworks proposed in this dissertation, anti-counterfeiting and traceability schemes are designed by extracting large libraries of features from these properties, and designing methods for identifying parts based on a subset of the extracted features that demonstrate good utility for the present use case. Such schemes are customized to handle specific material systems, metrology, expected part damage, and other concerns raised by a manufacturer or other supply chain stakeholders.</p> <p><br></p><p>First, this dissertation presents a framework that leverages this intrinsic information, and models for damage that may occur during use, for designing schemes for genuinity determination. Such schemes are useful in contexts like anti-counterfeiting and part tracing. Once this framework is established, it is then extended to design schemes for dynamically and securely embedding manufacturer-specified messages during the manufacturing process, with a focus on implementation in additive manufacturing. Such schemes leverage both the intrinsic information inherent to the material / manufacturing process and extrinsically introduced information. This extrinsic information may include cryptographic keys, message information, and specifications regarding how an authorized user may read the embedded message. The resulting embedding schemes are formalized as "malleable PUFs.'' </p> <p><br></p><p>The outcomes of these investigations are frameworks for designing, evaluating, and implementing traceability schemes that can be used by manufacturers, academics, and other stakeholders seeking to implement secure and informative traceability schemes subject to their own unique constraints. Importantly, these frameworks can be adapted for a range of industrial contexts, and can be readily extended as new methods for in-situ measurement and control in additive manufacturing are developed.</p>
48

Visual and performance comparison: Physically based atmosphere method against Unity Universal Render Pipeline procedural skybox

Höglund, Martin, Norberg, Nikki January 2022 (has links)
Background. In the pursuit of realism in rendering, a feature that may get overlooked is the sky and atmosphere—especially the consumer who might suspect that something is off without identifying it. A critical aspect of sky rendering is the color that should be dynamic with the time of day to be realistic. With multiple ways of rendering a sky and atmosphere, it is unclear which method best suits the circumstance. Objectives. The objective of this study was to make that decision clearer with both the visual aspect and the realism. It was also crucial that performance was not affected too heavily by the techniques. Methods. As the first objective can be subjective, we decided to ask several people through a survey to get a more objective answer. In the survey, we presented the participants with two images of identical scenes where the only difference between them was the method of rendering the sky. We then asked them which picture they thought was the most aesthetically pleasing and which they thought was the most realistic. The second part of the study was to test the performance of the techniques. We recorded the average frame time through a C\# script over all of the scenes. Results. When using the settings we established, the Physically-based atmosphere scored lower in both realism and aesthetics in the first visual test but scored higher in realism in all of the scenarios for the second visual test. Both the average frame rate and frame time did end up in favor of the Physically based atmosphere. Conclusions. The outcome of this study was surprising, we had thought that the Physically-based atmosphere would score higher in both realism and aesthetics. The performance of the Physically based atmosphere method proved to be much more optimized than the Unity procedural skybox than we would have thought.
49

Assessment-Based Treatment for Physically Abusive Parents: An Exploratory Study

Blickenstaff, Scott E. 01 May 1991 (has links)
Literature on child abuse supports the conception that physical abuse is a multidetermined behavior. Multifaceted treatment programs have shown some promise in dealing with the heterogeneity of abusive parents. Most of the reported comprehensive intervention programs have provided predetermined doses of a variety of treatment components to each subject. The intent of this study was two-fold: (a) to provide treatment components based on assessment of the parent and (b) to train the parent to a specified level of competency. A multiple baseline design was used in this clinical study of six agency-referred, physically abusive parents. Based on initial assessment and ongoing observation, subject parents were provided with one or two of four available parent-training components (child behavior management, cognitive modification, relaxation, and systematic desensitization). Treatment effects on 16 dependent variables were measured by self-report, coded audiotape, coded observation, physiological measures, and reports of abuse to public agencies. Results indicated improvement by all the subjects on most of the dependent variables (i.e., 77 of 90 comparisons). However, only three of the six subjects met all of the predetermined criteria for termination of all intervention. Subjects met 15 of 22 training competency criteria. Reductions in abuse indicators were maintained on most of the dependent measures during 30- and 90-day follow-up probes. Only one subject was re-reported for child abuse during the year following treatment. The low attrition rate was seen as a function of assessment.
50

The Educational Facilities for Crippled Children in Indiana, Illinois, Iowa, Michigan and Ohio

Hulvershorn, Newell E. 01 January 1942 (has links)
No description available.

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