Browsing by Autor "Cecilia Tapia-Siles"

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A hydraulically driven colonoscope
(Springer Science+Business Media, 2016) Stuart Coleman; Cecilia Tapia-Siles; Markus Pakleppa; Jan Vorstius; Robert Keatch; Benjie Tang; A. Cuschieri
Design and Simulation of a Banki Cross-Flow Wind Turbine for Highways Under High Turbulence and High Altitude Conditions
(2023) Daniel Felipe Sempértegui-Tapia; Eduard Matheo Alave-Vargas; Valentina Rita Villarroel-Beltrán; Renán Orellana Lafuente; Cecilia Tapia-Siles
The objective of this study is to design an optimal vertical axis wind turbine (VAWT) for electric generation on a high-density urban highway in Cochabamba, Bolivia, taking into account the special functional conditions due to the characteristics of the high altitude area. Based on the literature, it was initially determined that the Banki cross-flow turbine is the most suitable VAWT for use on highways. An in-situ measurement of the wind velocity spectra was conducted to assess the typical wind characteristics along the highway using statistical analysis and selected optimal values for testing and optimization. The diameter of the Banki wind turbine was then determined and fixed considering the width of the space between the two lanes of the highway as a limitation. Three geometrical aspects were assessed as variables for finding the optimal power coefficient; attack angle, number of blades and height. Computational fluid dynamics (CFD) simulations were carried out with every turbine combination to determine the optimal characteristics. From Cp and TSR values obtained from the simulations a multivariate analysis was carried out optimizing these values. The response of Cp and TSR were obtained, prioritizing Cp results. Finally, an ultimate design for the Banki wind turbine is proposed. The optimized Banki cross flow turbine has 11.5495 attack angle, 12 number of blades and 0.9 m of height.
<b>LENGUAJE FORMAL DE DESCRIPCIÓN PARA LA LENGUA DE SEÑAS BOLIVIANA (LSB): UNA HERRAMIENTA ABIERTA PARA SU USO EN OTRAS LENGUAS DE SEÑAS</b>
(2025) Mayra Oropeza-Condori; Miguel Frade-Flores; M. Mendizabal; Cecilia Tapia-Siles
Within the context of communication for deaf individuals, the development of a formalized language and a compiler is presented, serving to facilitate the creation of animations for Bolivian Sign Language (LSB – from Spanish: Lengua de Señas Boliviana) signs, and is adaptable for use in other sign languages. The system uses domain-specific language (DSL) that defines each sign as a sequence of poses based on vectors and finite variables, integrating central repetition and speed functions to facilitate writing. The results highlight the potential of its use to improve the accessibility and scalability of tools focused on the Deaf community, so as not to be limited by the language of their region, establishing a basis for future advances in assistive technologies for Deaf users.