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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.
1

Aplicación basada en realidad aumentada y la satisfacción del cliente del Camposanto Ecológico Esperanza Eterna

Acuña Soto, Mateo 14 December 2017 (has links)
La realidad aumentada es una tecnología que permite añadir información virtual sobre la realidad, lográndose implementar en el Camposanto Ecológico Esperanza Eterna. La investigación tuvo como objetivo determinar la influencia de una aplicación basada en realidad aumentada en la satisfacción del cliente del Camposanto Ecológico Esperanza Eterna. La investigación desarrollada fue de tipo aplicada a nivel explicativo. Para el estudio se consideró como muestra al cliente del Camposanto Ecológico Esperanza Eterna. / Tesis
2

Aulas Virtuales como herramienta de apoyo en la educación de la Universidad Nacional Mayor de San Marcos

Cabañas Valdiviezo, Julia Emilia, Ojeda Fernández, Yessenia Magaly January 2003 (has links)
La tesis presenta una investigación sobre Aulas Virtuales y los aspectos que involucran la implementación de éstas como apoyo en la educación. Hemos considerado como caso de estudio a la Universidad Nacional Mayor de San Marcos quien tiene a su disposición este tipo de servicio disponible vía Internet. Comenzaremos esbozando los principios técnicos que la sustentan y la metodología de trabajo para su desarrollo. Esta se compone de tres fases: concepción y análisis de viabilidad, proceso de desarrollo e impartición y seguimiento de las acciones formativas. También se describen las bondades que el sistema Aula Virtual ofrece para los docentes, alumnos y público en general así como los recursos que se necesitan para su implementación. / The present thesis is an investigation about Virtual Classrooms and these aspects that involve the implementation of these like support in the education. We considered as case of study to the University National “Mayor de San Marcos”, this institution have disposition this type of available service via Internet. We will begin sketching the technical principles that sustain it and the working methodology for their development. This it is composed of three phases: conception and analysis of viability, development process, information and pursuit of the formative actions. Describe the kindness that offer the system of Virtual Classroom for the teachers, students and public in general as well as the resources that are needed for its implementation.
3

A virtual sculpture based morphable face model

Riewe, Jessica Lauren 17 September 2007 (has links)
Exemplar virtual three-dimensional sculptures collected from sixteen artists are used to develop a multidimensional space to describe facial shape, which is then used as a mechanism for modeling new faces. This is accomplished through identifying and varying derived principal components of the multi-dimensional space. The relationships between these principal components and their effects on new faces are explored through the creation of new virtual faces using a graphical user interface. These new virtual face sculptures are then modified by facial feature, gender, and expression using a feature-based transformation interface based on difference vectors. Finally, animations are created to illustrate the results of these approaches. Facial mesh transformations based on principal components does not give direct predictable control for modifying specific facial features. However, it does provide interesting design choices for artists, and general patterns of the data variance were obtained. The feature-based transformations were successful in further modifying created faces.
4

Creating a multi-floor building and developing user navigation assistance in the virtual environment

Zhao, Tingting 17 December 2010 (has links)
This research constructs the virtual environment of a multi-floor building and provides some navigation assistance to enhance the navigation experience of users in the virtual environment. Based on the 2D architectural floor plans and photographs of Engineering and Information Technology Complex (EITC), a virtual environment of the multi-floor building is created using visualization modeling. Geometric modeling, texture mapping, and lighting procedures are employed to increase the visual effect. Two navigation assistance functions, walking through and optimal path navigation guiding tour, developed in the virtual environment helps users navigating in the virtual environment. Walking through allows users to navigate freely to obtain the spatial and geographical information of the virtual environment. Optimal path navigation guiding tour function leads users moving from a specified start position to the destination position along the optimal path. An improved shortest path algorithm is used for calculating the optimal path.
5

Creating a multi-floor building and developing user navigation assistance in the virtual environment

Zhao, Tingting 17 December 2010 (has links)
This research constructs the virtual environment of a multi-floor building and provides some navigation assistance to enhance the navigation experience of users in the virtual environment. Based on the 2D architectural floor plans and photographs of Engineering and Information Technology Complex (EITC), a virtual environment of the multi-floor building is created using visualization modeling. Geometric modeling, texture mapping, and lighting procedures are employed to increase the visual effect. Two navigation assistance functions, walking through and optimal path navigation guiding tour, developed in the virtual environment helps users navigating in the virtual environment. Walking through allows users to navigate freely to obtain the spatial and geographical information of the virtual environment. Optimal path navigation guiding tour function leads users moving from a specified start position to the destination position along the optimal path. An improved shortest path algorithm is used for calculating the optimal path.
6

A two-stage circumferential slot virtual impactor for bioaerosol concentration

Isaguirre, Refugio Rey, IV 02 June 2009 (has links)
Slot virtual impactors provide an efficient low power method of concentrating aerosols. A circumferential slot virtual impactor (CSVI) is especially effective because it has a continuous slot, and, therefore, has no losses associated with the ends of the slot. A CSVI can also fit a longer slot in a smaller footprint than a linear slot virtual impactor. A two-stage circumferential slot virtual impactor system has been designed and tested. The CSVI units are similar in principle to that tested by Haglund and McFarland (2004). Specific geometric changes to the nozzle region were introduced based on the numerical models of Hari (2005). The greatest change to the nozzle geometry of Haglund and McFarland (2004) is the introduction of a radius on the accelerator nozzle. The radius on the accelerator section allows larger particles to make a smoother transition into the focused jet. The smoother transition reduces the amount of wall losses for larger particles. The geometric changes show a significant increase in the particle size range that the virtual impactor can effectively concentrate. The extension of the dynamic range of the improved geometry was evident in the results for both the 100 L/min first stage and the 10 L/min second stage CSVI units. The two stages were tested individually and in series where the nozzle Reynolds number was 250 for both units.The results of the experiments on the two stage CSVI system showed a peak collection efficiency of 90%. The first and second stage had a Stokes cutpoint of 1.2, corresponding to a particle size of about 2.5
7

Team Effectiveness in Virtual Environments: An Ecological Approach

Shachaf, Pnina, Hara, Noriko January 2005 (has links)
This chapter attempts to address the need for more research on virtual team effectiveness and outlines an ecological theoretical framework that is applicable to virtual learning environments (VLE). Prior empirical studies on virtual team effectiveness used frameworks of traditional team effectiveness and mainly followed Hackman's normative model (input-process-output). We propose an ecological approach for virtual team effectiveness that accounts for team boundaries management, technology use, and external environment in VLE, properties which were previously either non-existent or contextual. The ecological framework suggests that three components, external environment, internal environment, and boundary management, reciprocally interact with effectiveness. The significance of the proposed framework is a holistic perspective that takes into account the complexity of the external and internal environment of the team. Furthermore, we address the needs for new pedagogical approaches in VLE.
8

Team Effectiveness in Virtual Environments: An Ecological Approach

Shachaf, Pnina, Hara, Noriko January 2005 (has links)
This chapter attempts to address the need for more research on virtual team effectiveness and outlines an ecological theoretical framework that is applicable to virtual learning environments (VLE). Prior empirical studies on virtual team effectiveness used frameworks of traditional team effectiveness and mainly followed Hackman's normative model (input-process-output). We propose an ecological approach for virtual team effectiveness that accounts for team boundaries management, technology use, and external environment in VLE, properties which were previously either non-existent or contextual. The ecological framework suggests that three components, external environment, internal environment, and boundary management, reciprocally interact with effectiveness. The significance of the proposed framework is a holistic perspective that takes into account the complexity of the external and internal environment of the team. Furthermore, we address the needs for new pedagogical approaches in VLE.
9

Instrumentação virtual aplicada a um laboratório com acesso pela internet.

Adriana Paula Borges 22 February 2002 (has links)
Nesta dissertação são apresentados os resultados obtidos na elaboração de um sistema flexível de monitoração e controle de ensaios experimentais através de uma rede de computadores. É proposta uma infra-estrutura com base em instrumentação virtual e uma metodologia para o desenvolvimento de um laboratório virtual multi-usuários com acesso via Internet através de páginas Web. São selecionadas as ferramentas que melhor se adaptam à integração entre hardware e software para possibilitar o controle de equipamentos de forma remota, através de rede de computadores utilizando um browser Web. O escopo de maior abrangência deste projeto propõe a implementação de um sistema físico utilizando o acervo instrumental disponível no grupo Sensores Integráveis e Microssistemas - SIM. O principal objetivo é o controle dos parâmetros de funcionamento de dispositivos eletrônicos em um experimento genérico, através da Internet, utilizando uma interface amigável e intuitiva. A proposta global é contribuir com a aquisição de dados a distância através da Internet para auxiliar a projetos cooperativos em áreas que incluem mas não se limitam à educação a distância, médica, industrial e comercial. Como resultado final deste trabalho é disponibilizado um laboratório virtual que permite o acesso, o controle e a monitoração de experimentos em tempo real, em forma remota através da Internet, no endereço http://labvirtual.lme.usp.br/adriana.
10

Instrumentação virtual aplicada a um laboratório com acesso pela internet.

Borges, Adriana Paula 22 February 2002 (has links)
Nesta dissertação são apresentados os resultados obtidos na elaboração de um sistema flexível de monitoração e controle de ensaios experimentais através de uma rede de computadores. É proposta uma infra-estrutura com base em instrumentação virtual e uma metodologia para o desenvolvimento de um laboratório virtual multi-usuários com acesso via Internet através de páginas Web. São selecionadas as ferramentas que melhor se adaptam à integração entre hardware e software para possibilitar o controle de equipamentos de forma remota, através de rede de computadores utilizando um browser Web. O escopo de maior abrangência deste projeto propõe a implementação de um sistema físico utilizando o acervo instrumental disponível no grupo Sensores Integráveis e Microssistemas - SIM. O principal objetivo é o controle dos parâmetros de funcionamento de dispositivos eletrônicos em um experimento genérico, através da Internet, utilizando uma interface amigável e intuitiva. A proposta global é contribuir com a aquisição de dados a distância através da Internet para auxiliar a projetos cooperativos em áreas que incluem mas não se limitam à educação a distância, médica, industrial e comercial. Como resultado final deste trabalho é disponibilizado um laboratório virtual que permite o acesso, o controle e a monitoração de experimentos em tempo real, em forma remota através da Internet, no endereço http://labvirtual.lme.usp.br/adriana.

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