Feasibility Study of Pumping Cycle Kite Power System Implication in Scotland UK

To meet the worldwide requirements of carbon emission reduction, the European Council set a target for 15% of final energy consumption in the UK to come from renewable energy by 2020. In the UK, the Climate Change Act (2008) set a target for the reduction of 80% of carbon emissions by 2050. The biggest renewable energy sources in the UK are bioenergy, wind, solar and hydro. The UK is located in a windy area and is one of the top locations in the world for wind power, often considered to be the best in Europe. Since the 1980’s, the number of wind farms has increased greatly. Wind turbines extract wind energy from 100 metres above the ground. Airborne Wind Energy (AWE) systems enable the extraction of more energy from the wind at elevated altitudes beyond 150 meters using a technique termed pumping cycle kite power system. Scotland is the most suitable location for the implementation of AWE systems in the UK. In this work, the annual energy production of such a pumping cycle kite power system in Scotland was analysed using Luchsinger’s analytical models. The annual energy production was found to be over 3.4MWh/m2 in all five locations in Scotland

Viability of Airborne Wind Energy in the United Kingdom

To meet the worldwide requirements of carbon emission reduction, the European Council has set the UK a 15% energy target to come from renewable energy by 2020. The biggest renewable energy sources in the UK are bioenergy, wind, solar and hydro. The UK is located in prime geography, considered to be the best in Europe, for harvesting and over the last three decades, the number of wind farms has increased greatly. However, the interaction of wind speed and structural strength have limited the height of platform-based wind turbines to a maximum height of around 100 m. Airborne Wind Energy (AWE) systems enable the extraction of more energy from the wind at elevated altitudes beyond 150 meters using a device termed a kite. A method is required to determine suitable locations for AWE system implementation. In this work, a regional feasibility study is conducted to establish an ideal suitable location to implement the AWE system. Extensive work has been carried out to assess the electricity costs and energy savings, area availability as well as regional airborne wind energy power densities at different regions within the UK. A standardised method has been developed to assess the viability of AWE in various geographical locations. It was found that Scotland was the most suitable location for the implementation of an AWE systems due to the high wind power density in this region and existing high costs of electricity thus greater potentials for energy cost savings. This is the pre-print version of an article printed in the Journal of Thermal Science and Engineering Applications, published by the American Society of Mechanical Engineers. The full published version is available online at: http://thermalscienceapplication.asmedigitalcollection.asme.org/journal.asp

Historia del hallazgo y secuestro de documentación de la Central Nacional de Informaciones (CNI) en las obras de construcción del Museo de la Solidaridad Salvador Allende, 2005

La Central Nacional de Informaciones, más conocida por su sigla CNI, fue un organismo de inteligencia que cubrió todo el país durante la dictadura civil militar de Augusto Pinochet en Chile. Fue creada inmediatamente después de la disolución de su predecesora, la Dirección de Inteligencia Nacional (DINA), y existió entre 1977 y 1990. La justicia ha sentenciado que se trató de una “asociación ilícita” para cometer crímenes, entre los que se incluyeron ejecuciones sumarias, torturas y desaparición forzada de personas, entre otros delitos. El inmueble de República 475, que antes perteneció a la Universidad de Chile, fue uno de los siete espacios físicos ocupados por la DINA en 1974 y traspasado a la CNI en 1978. Este artículo cuenta esta historia.&nbsp

Historia del hallazgo y secuestro de documentación de la Central Nacional de Informaciones (CNI) en las obras de construcción del Museo de la Solidaridad Salvador Allende, 2005

Este texto fue construido en un intercambio de propuestas entre el 11 de enero y el 22 de marzo de 2019 entre Miguel Lawner y Claudio Ogass. La primera versión fue escrita por Miguel Lawner y leída en la Mesa “Hallazgos y secuestros de las huellas documentales de los Archivos de la Represión en Chile” el 8 de agosto de 2018. Más adelante, su artículo fue complementado con las intervenciones realizadas con el público y, principalmente, con testimonios y relatos entregados en dos entrevistas audiovisuales otorgadas a Londres 38, espacio de memorias: “Desclasifican un Archivo de la CNI” (20 de noviembre de 2014) y “El hallazgo de un archivo de la CNI” (30 de diciembre de 2014). Tras una última revisión, con la ayuda de su nieto, el texto fue aprobado por su autor con rectificaciones. Todas las fotografías fueron tomadas apresuradamente con una pequeña cámara.Archivo Histórico de la Universidad Nacional de La Plat

Cuando la memoria se convierte en patrimonio: algunas experiencias desde Santiago de Chile

This article explores the relationships between memory politics and urban heritage in the construction of a twenty-first century democratic society. It focuses on the case of Chile and concentrates on three examples of public buildings in the capital city, Santiago. Given what can be considered a difficult heritage –linked to the recent experience of dictatorship and state sponsored violence– these buildings have been in recent years objects of heritage politics, directed to address a public memory related to those events. Based on these case studies, the article critically discusses the materialization of the dominant human rights discourse in the current memory politics affecting Santiago’s urban heritage.Este artículo aborda las relaciones entre políticas de memoria y patrimonio urbano en el proceso de construcción de una sociedad democrática del siglo XXI. El análisis se centra en el caso de Chile y presenta tres ejemplos de edificios públicos de la capital, Santiago. Los tres sitios representan lo que puede considerarse un patrimonio difícil –vinculado a una reciente experiencia de dictadura y violencia de Estado– y, por esta razón, han sido objeto, en años recientes, de políticas patrimoniales dirigidas a gestionar la memoria pública de esos eventos. A través de estos casos, el artículo analiza críticamente la materialización del discurso dominante de los derechos humanos en las actuales políticas de memoria que afectan al patrimonio urbano de Santiago

Bullying: An ecological approach to intervention in schools

Bullying is a major concern in education worldwide, particularly in countries such as New Zealand that are reported to have high rates of bullying in schools. In this article it is proposed that, in order to effectively prevent or substantially reduce bullying in schools, a systemic approach needs to be adopted, with interventions organized at various levels. An ecological model for bullying prevention is presented that suggests strategies and interventions at the levels of teachers, schools, communities, and society. Examples of interventions that have been found in the literature to have evidence supporting their effectiveness have been outlined at each of these levels. Guidelines are presented for schools adopting such an ecological model for addressing bullying and for bringing about the changes needed to implement it successfully