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Imagen de apoyo de WaveNET efficiency improvement (hexagonal array wave energy converter system) = Optimizacion de la eficiencia de sistema WaveNET (sistema convertidor de energía mareomotriz de arreglo hexagonal)

Por: Héctor Fabián Reyes Parada | Fecha: 2013

The following report describes the work done during my internship in AlbaTERN Ltd, a company focused in the design and construction of wave energy devices that capture energy from ocean waves and convert it into sustainable low- carbon electricity. A background of existing research in the area of Wave Energy conversion and its potential around the world is given in the first chapters. The main objective of my thesis has been support the design and construction of a unique wave energy conversion system constructed from multiple SQUID modules in a hexagonal array configuration. The project has been focused to look specifically at improving the hydraulic energy conversion efficiency, the feasibility of auto-setting operational variables according to the sea conditions, and the overall adaptability of the design to suit the specifications of the site and power requirements. Simulations using SimHydraulics have been developed to assess the design an optimal Hydraulic energy conversion system. With the output of the several simulations and hydraulic laboratory tests have been possible the sizing of its different components, and the design of special manifold blocks with self-setting hydraulic control, reducing the quantity and complexity the electronic devices for the general control. The key challenge facing the Wave Energy conversion Industry is lowering the cost of energy generation, where is required research and Development in order to design a device with high efficiency, high availability and low cost for the mass production. So achieving a viable wave energy future depends as much upon developing a technology that can be rapidly and economically scaled to high volume production. This project provides a solid foundation for scaling WaveNET arrays in excess of 10 MW.

Fuente: Biblioteca Virtual Banco de la República Formatos de contenido: Tesis

Temas:
Otros
Ingeniería

Imagen de apoyo de Perspectiva de infancia en las políticas de juzgamiento en las transiciones en Colombia: El caso de los niños, niñas y adolescentes reclutados por grupos armados al margen de la ley

Por: Carolina Villadiego Burbano | Fecha: 2010

El Estado colombiano ha tenido un conflicto armado desde la década del 60 del siglo XX, cuyas raíces se remontan a décadas pasadas a ésta. En éste han participado distintos grupos de izquierda y de derecha que reclutaron de manera indiscriminada niños, niñas y adolescentes. Durante años, se realizaron diferentes esfuerzos para obtener la desmovilización de los grupos armados y alcanzar la paz. Estos esfuerzos se enmarcaron, en mayor o menor medida, en las herramientas de la justicia transicional. En ese marco, las políticas de juzgamiento desarrolladas buscaban en los últimos tiempos sancionar a las personas que cometieron graves crímenes con ocasión de su participación en el grupo armado. Estas políticas, sin embargo, se realizaron a partir de un imaginario fuertemente arraigado según el cual los grupos armados estaban compuestos solo por adultos. Sin embargo, a los adolescentes reclutados ilícitamente y desvinculados de los grupos armados se les aplicó un régimen penal ordinario, distinto al de los adultos, que generó prácticas discriminatorias según la forma de desvinculación del grupo y respecto del grupo que provenían. Pero además, el trato jurídico brindado no fue menos gravoso que el establecido para los adultos que los reclutaron, entre otras cosas, porque las políticas de juzgamiento diseñadas para los desmovilizados no tuvieron perspectiva de infancia.

Fuente: Biblioteca Virtual Banco de la República Formatos de contenido: Tesis

Temas:
Otros
Ciencias sociales

Imagen de apoyo de Assesment of Geotechnical process on the basis of sustainability principles

Por: Mauricio Jiménez | Fecha: 2004

The main idea of this project is to identify possible indicators to evaluate civil engineering works that involves geotechnical techniques. Furthermore, the idea to encourage the developing of new technologies using as base, properly process that are available at the moment, might be attempt. However, to find these indicators of sustainable geotechnical engineering is the principal objectives of the project. In general words, the objectives of this thesis are: In base of sustainable indicators from different areas such as economics, water management, environment regulations, productivity in the industrial field among others, adapted and developed indicators for geotechnical engineering field. According with the sustainable geotechnical requirements, proposed new indicators relevant for this field. Validate and prove the use of the mentioned indicators with a case study and apply them to analyze their results. Develop an evaluation model to summaries and illustrated the indicators performance. Show the viability of new technologies confronting to regular procedures. This dissertation has found an important and fundamental tool for geotechnical engineers that want to go further that the actual design parameters. Moreover, the necessities to supply the present requirements are covering with the use of sustainability geotechnical evaluation model (S.G.E.M) that is the final result of this dissertation.

Fuente: Biblioteca Virtual Banco de la República Formatos de contenido: Tesis

Temas:
Otros
Ingeniería

Imagen de apoyo de The Corporate Peace Gift: Alternative views to the CSR movement within the Colombian context = El regalo corporativo para la paz: Miradas alternativas sobre el movimiento de RSE en el contexto colombiano

Por: Juan Felipe Sánchez Barrera | Fecha: 2015

The paper examines the way in which several private firms in Colombia have deployed Corporate Social Responsibility programmes via peacebuilding initiatives, as in a gift-exchange scheme. These initiatives often have taken place in different regions of the country regardless of the geopolitical influence armed groups have on them. Whereas the Colombian government and FARC guerrillas have started peace-talks since 2012, many areas are still vulnerable to the reproduction of violence. The national –however non-state– campaign ""Soy Capaz"" led by 120 big companies, reveal a deep interest from within the private sector to engage in peacebuilding as part of its corporate strategy. The objective of this paper is to describe how peace initiatives by the private sector could be interpreted as a gift-giving relationship between corporate firms and government officials, institutions, and the Colombian society as a whole. Higher corporate expansion and regional consolidation, national and international positive reputation, increased leverage in government decision-making and policy-making, and a greater consumption of goods and services, are possible outcomes among other benefits that could be expected in exchange for these peace initiatives led from and by the private sector. However, the question Mauss already posited in his search for “a rule of legality and self-interest”, a “power residing in the object” (2002, p. 4), suggests a possible underlying and even deeper interest behind these initiatives. The very nature of this gift –its embedded asymmetry for reciprocation, its morality and its spirituality– creates affect within a population desirous of peace and reconciliation. However, the seriousness and scope of such venture coming from the Colombian private sector are still an issue to be clarified.

Fuente: Biblioteca Virtual Banco de la República Formatos de contenido: Tesis

Temas:
Otros

Por: Jose David Guerra Bonet | Fecha: 2019

In general, our decisions are based on comparisons with a point of reference, which wlll tell us if something is too much or too little. This paper aims to show how important quantification is, since these quantities help cement the conviction that we may have that an alternative is indicated at the time of choosing it. Mathematics permeates all areas of knowledge, and are necessary to salve problems that we face on a daily basis. Many times our intuition fails to decide, because we are notas rational as we think. This extends to the judges when issuing a ruling; Mathematics can become a very useful tool to objectify such decisions, in some cases challenging our intuition.

Fuente: Universidad Externado de Colombia Formatos de contenido: Tesis

Temas:
Otros

Por: Olga Lucía Gómez Castro | Fecha: 2017

A process of innovation in a micro and small business requires, as in any company, to have its strategic management model established with which to guide the phases and activities to be undertaken and their interrelation, resources to be allocated, the objects to be achieved, structure of support, action plans to achieve it, measurement and evaluation of the process. When we refer to the strategic management model of the company, it is necessary for top management to declare or already have their policy statement, objectives, which may be qualitative or quantitative but that reflect what the company expects to obtain, and principles regarding innovation. The consulting firm TANTRUM offers services focused on the development of strategy, culture and development of innovation projects, creating technological tools tailored to the needs of its customers, including the entire research process of trends at the national level and international, in matters of consulting in innovation with the use of technological innovations in particular the virtual reality, to work models of systems of innovation in micro and small companies, that allow to validate the viability and scope of its projects, based on knowledge management with the aim of seeking new alternatives for business models, new products or services, new production systems, with the aim of expanding their participation in the market or being pioneers in the economic sector to which they belong.

Fuente: Universidad Externado de Colombia Formatos de contenido: Tesis

Temas:
Administración
Otros
Tecnología

Por: Lizeth Yamile Barrera Cabrera | Fecha: 2017

Proposal of a business model that responds to issues addressed form three main axes: Social, enviroment and funcionality in th spaces. Regarding the Local development the rural and artisanal communities of the North Boyaca have reduced their economic activities due to the decrease of tourists in this region. In Enviromental sustainability: people's priorities change, one that takes great importance is the need to use productswith low enviromental impact in buildings: Bioclimatic Architecture. Finally Isolated enviroments; the cities grow and with it the rapidity of the routine, reason form which arises the need to isolate acoustically and thermally the architectural spaces. In this way, Ambiento, Is based on the design, production and marketing of functional products for architectural spaces through the employment linkage of rural communities and the use of biodegradable raw materials. "The creation of functional internal spaces with the use of biodegradable materials linking rural communities for the generation of work opportunities

Fuente: Universidad Externado de Colombia Formatos de contenido: Tesis

Temas:
Otros

Por: Adriana Paola Barrera Rodríguez | Fecha: 2018

Taking into account the problems identified by the oil activities and regulations updates that must be fulfilled for each environmental components which oil sector has to use during its operation, it was necessary to review the changes included in Resolution 631 of 17 March 2015 issued by Minambiente, which are related to the water component, referring to the discharges made to the several bodies of water during hydrocarbon exploration and exploitation activities. Once identified, an analysis was perform taking into account the effects that this changes would have on the oil sector in case they have to modify their processes to effectively comply with the requirements made by Resolution 631 of 2015 of the Minambiente, especially already operative projects, since the competent authority can request updates in their processes in order get covered from the new requirements established.

Fuente: Universidad Externado de Colombia Formatos de contenido: Tesis

Temas:
Tecnología
Otros
Hidrocarburos

Por: Patricia García M. | Fecha: 2018

El objetivo del presente trabajo es realizar una propuesta de plan de mercadeo 2018 para Diana Tous accesorios. Pyme Colombiana que fue creada en el año 2008 inspirada en la cultura Zenú con un portafolio que cuenta con: collares, pulseras, brazaletes, anillos y aretes. Se realizó un análisis interno y externo de la empresa empezando con una entrevista a la fundadora donde se identificaron 3 áreas de oportunidad para trabajar y proponer mejoras como: estructura y formalización del área de mercadeo, comunicación y consumidor y cliente. También se realizó un análisis financiero de la empresa donde se evidenció la disminución de las ventas en el último año. Además, se realizó una entrevista a 102 consumidoras de accesorios personales donde el 81% confirma que compra más de dos veces al año accesorios para combinar con el vestuario. De acuerdo con el análisis realizado para Diana Tous accesorios, es necesario formalizar un área de mercadeo que defina los objetivos corporativos. Para el área de mercadeo se implementará un plan de marketing digital dirigido al segmento objetivo. La integración de la página web y RRSS con un contenido que logre un mejor posicionamiento en la mente del consumidor nacional e internacional. La estrategia de marca consta de la división de las líneas creando una marca para cada DT joyería la marca Premium y la de la línea de bisutería sería Diana Tous accesorios.

Fuente: Universidad Externado de Colombia Formatos de contenido: Tesis

Temas:
Otros
Arte
Administración

Por: Adiela Lissette Carranza Ríos | Fecha: 2020

Ultravans es una Mipyme colombiana dedicada al transporte especial de pasajeros a nivel nacional, entre su portafolio de servicios ofrece: transporte empresarial, transporte turístico, transporte publicitario y ultrabikes (una línea de negocio dedicada al transporte de personas y bicicletas). Dentro del presente trabajo se hizo un estudio externo e interno con el fin de identificar factores críticos que tuvieran impacto dentro de la organización con el fin de definir un plan de mercadeo ajustado a las necesidades de las pequeñas empresas, definiendo planes de acción y lineamientos para la aplicación de los mismos. Asimismo, se estableció un presupuesto para las diferentes iniciativas y las retribuciones esperadas de las estrategias sugeridas para la compañía. Finalmente, se observará un tablero de control que permitirá establecer niveles de cumplimiento y alertas sobre el alcance de cada uno de los objetivos

Fuente: Universidad Externado de Colombia Formatos de contenido: Tesis

Temas:
Otros