Camino al diseño

Como resultado de la investigación DISEÑO Y MÉTODO, adelantada por los profesores D.I. Luz María Jiménez Narváez y Arq. Miguel Ángel Aguilar Gómez, pertenecientes a la Facultad de Ingeniería y Arquitectura de la Universidad Nacional de Colombia Sede Manizales; se obtuvieron algunas conclusiones y recomendaciones con respecto al ejercicio de diseño. Este documento tiene como objeto servir de punto de partida a los profesores para la formación de los alumnos en el área de Proyectivas (asignatura que provee los conocimientos teóricos y conceptuales necesarios para la correcta proyectación arquitectónica) y su puesta en práctica en los Talleres de Arquitectura. El documento está dividido en cinco partes. La primera hace un breve recuento general acerca de la misión del Arquitecto y los aspectos que a él y a su formación competen. En la segunda parte se exponen los principios fundamentales a tener en cuenta para trazar una estrategia de trabajo exitosa. La tercera contiene una propuesta metodológica que reúne todos los pasos del proceso de diseño en tres etapas básicas. En la cuarta parte se propone un ejemplo práctico para que el alumno elabore por sí mismo su propio ejercicio, tome sus decisiones personales, evalúe los resultados y reafirme los conceptos planteados en la cartilla. Como quinto punto se encuentran el glosario de términos empleados y la bibliografía

Mechanical Isolation of Highly Stable Antimonene under Ambient Conditions

Using mechanical exfoliation combined with a controlled double step transfer procedure we demonstrate that single layers of antimony can be readily produced. These flakes are not significantly contaminated upon exposure to ambient conditions and they do not react with water. DFT calculations confirm our experimental observations and predict a band gap of 1.2-1.3 eV (ambient conditions) for single layer antimonene, which is smaller than that calculated under vacuum conditions at 0 K. Our work confirms antimonene as a highly stable 2D material with promising relevant applications in optoelectronics.Comment: main paper: 5 pages, 4 figures supporting: 9 pages, 7 figures, Advanced Materials, 201

Segmentation of Foreign Tourists Based on Emotional Perception—The Case of Granada, Spain

The aim of the present research was to present the typologies of foreign tourists in the city of Granada, Spain, based on their emotional perception and interest in culture using different fieldwork methods. The main obtained results determine four segments of tourists: cultural, alternative, heritage, and emotional. The results also show that, in addition to cultural reasons, tourists presented other types of attractions that encouraged them to visit the city. Regarding the satisfaction variable, the obtained results show that satisfaction increased when cultural reasons had a strong influence on the tourists’ choice of destination. This research contributes to identifying the characteristics of the different visitor segments, with the aim of designing tourist and cultural products that can more efficiently satisfy their needs. This will have a positive impact on the economic development of the city of Granada with an increase in tourist spending, which will lead to an increase in employment and urban development

Exploring Software Engineering Subjects by Using Visual Learning Analytics Techniques

[EN]The application of the Information and Communication Technologies to teaching and learning processes is linked to the development of new tools and services that can help students and teachers. Learning platforms are a clear example of this. They are very popular tools in eLearning contexts and provide different kinds of learning applications and services. In addition, these environments also register most of the interactions between the learning process stakeholders and the system. This information could potentially be used to make decisions but usually it is stored as raw data, which is very difficult to understand. This work presents a system that employs visual learning analytic techniques to facilitate the exploitation of that information. The system presented includes several tools that make possible to explore issues such as: when interaction is carried out, which contents are the most important for users, how they interact with others, etc. The system was tested in the context of a software engineering subject, taking into account the stored logs of five academic years. From this analysis it is possible to see how visual analytics can help decision-making and in this context how it helps to improve educational processes

Memristor Emulator Circuit Design and Applications

This chapter introduces a design guide of memristor emulator circuits, from conceptual idea until experimental tests. Three topologies of memristor emulator circuits in their incremental and decremental versions are analysed and designed at low and high frequency. The behavioural model of each topology is derived and programmed at SIMULINK under the MATLAB environment. An offset compensation technique is also described in order to achieve the frequency-dependent pinched hysteresis loop that is on the origin and when the memristor emulator circuit is operating at high frequency. Furthermore, from these topologies, a technique to transform normal non-linear resistors to inverse non-linear resistors is also addressed. HSPICE numerical simulations for each topology are also shown. Finally, three real analogue applications based on memristors are analysed and explained at the behavioural level of abstraction

ENFOQUE METODOLÓGICO PARA EL DISEÑO DE INTERFACES DURANTE EL CICLO DE VIDA DE DESARROLLO DE SOFTWARE

RESUMEN ANALÍTICOLa ingeniería de software busca defnir procesos, controlarlos y seguirlos con el fn de construir productos de calidad que garanticen al usuario su satisfacción, generalmente medida en términos de funcionalidad del producto, pero pocas veces evaluada en términos de usabilidad del mismo. Este artículo presenta un modelo para el ciclo de vida de desarrollo de software, basado en la metodología Human-Centered Design (HCD) en el cual son integrados algunos métodos utilizados en el diseño de producto (diseño industrial). Este modelo incluye métodos de usabilidad (efciencia, efcacia y satisfacción) y técnicas para el diseño de interfaces gráfcas de usuario (apreciación y estética). La investigación utilizó una metodología de análisis cualitativo a través del análisis de la experiencia de una PYME de desarrollo de software. Por último, se utilizó el modelo de referencia Capability and Maturity Model Integrated (CMMI) para la validación del modelo propuesto.PALABRAS CLAVES: Usabilidad, Diseño Centrato en el Usuario, Diseño como Proceso, Ciclo de Vida del Producto.METHODOLOGICAL APPROACH FOR INTERFACE DESIGN DURING SOFTWARE DEVELOPMENT LIFE-CYCLEANALYTICAL SUMMARYSoftware engineering looks for defning, controlling and following processes, it aiming to construct high quality products in order to guarantee user satisfaction. Usually, it is measured in functionality terms, but few times measured from the perspective of usability. This paper presents a life cycle model of software development, based on the Human Centered Design (HCD) methodology, which integrates some methods used in product design (industrial design). The model includes usability methods (effciency, effcacy and satisfaction) and techniques for graphic user interfaces (aesthetic and visual perception). The research uses an analytic qualitative methodology approach by the experience of a SME (Small and Medium Enterprises) of software development. Finally, Capability and Maturity Model Integrated (CMMI) was used as reference for validating the model.KEYWORDS: Usability, Human-Centered Design, design as process, product life cycle

E-MIS validity applied to TELMA enhanced learning environment

Enhanced learning environments are arising with great success within the field of cognitive skills training in minimally invasive surgery (MIS) because they provides multiple benefits since they avoid time, spatial and cost constraints. TELMA [1,2] is a new technology enhanced learning platform that promotes collaborative and ubiquitous training of surgeons. This platform is based on four main modules: an authoring tool, a learning content and knowledge management system, an evaluation module and a professional network. TELMA has been designed and developed focused on the user; therefore it is necessary to carry out a user validation as final stage of the development. For this purpose, e-MIS validity [3] has been defined. This validation includes usability, contents and functionality validities both for the development and production stages of any e-Learning web platform. Using e-MIS validity, the e-Learning is fully validated since it includes subjective and objective metrics. The purpose of this study is to specify and apply a set of objective and subjective metrics using e-MIS validity to test usability, contents and functionality of TELMA environment within the development stage

Efecto de la osmodeshidratación sobre el contenido de antocianinas y capacidad de rehidratación de arándanos (Vaccinium corymbosum L.) liofilizados

El objetivo de esta investigación fue evaluar el efecto de la osmodeshidratación como pretratamiento a la liofilización sobre el contenido de antocianinas en el arándano (Vaccinium corymbosum L.) y su capacidad de rehidratación. Se utilizó el diseño compuesto central rotacional (DCCR) con concentraciones de sacarosa de 40 a 60 °Brix y temperaturas de 30 a 50°C de la solución osmótica, totalizando 11 ensayos, los que tuvieron una duración de 4 horas. Los arándanos osmodeshidratados se congelaron con nitrógeno líquido (-196 °C) a presión atmosférica y se liofilizaron a condiciones de 0,22 mbar y -50 °C durante 24 horas; cuantificándose el contenido de antocianinas (mg cianidina-3-glucosido/L) y la capacidad de rehidratación (CR) en el arándano liofilizado. Los arándanos sometidos a una solución osmótica de 50 °Brix y 50 °C presentaron el mayor contenido de antocianinas 126,64 (mg cianidina-3-glucosido/L) en tanto con solución osmótica de 57 °Brix y 47 °C, se obtuvo el mayor porcentaje de rehidratación 69,15%, que es superior al 25,27% encontrado para el arándano fresco liofilizado. Los resultados sugieren que la aplicación de la deshidratación osmótica como pretratamiento a la liofilización es una tecnología que no favorece la retención de las antocianinas del arándano (Vaccinium corymbosum L.), debido a que ocasiona un alto porcentaje de pérdida de estos compuestos por lixiviación, sin embargo, representa una opción para obtener productos con una mayor capacidad de rehidratación luego de ser liofilizados.