Emisora de radio experimental en FM.

Creación de una emisora de radio experimental. Objetivos: dirigir la atención de los alumnos hacia temas relacionados con la comunidad, centros locales y cultura canaria en general. Mejorar las técnicas de dicción, lectura, coordinación de grupos de trabajo, etc. Utilizar la emisora como complemento promotor de las actividades culturales y deportivas que se desarrollen en el centro. Aplicado a 300 alumnos de BUP del Centro de Bachillerato Tomás de Iriarte, Tenerife. Se desarrolla en dos fases: una puramente técnica, que consiste en el montaje y puesta en funcionamiento de la emisora; y una segunda fase consistente en el desarrollo propio de las emisiones. Aunque de forma parcial, por retraso en la dotación económica, se han cumplido la mayoría de los objetivos. Se ha logrado interesar a un gran número de alumnos, facilitándoles una serie de conocimientos relacionados con la radio. Se ha fomentado la coordinación de los grupos de trabajo. La lectura y revisión de bibliografías para llevar a cabo las diferentes emisiones. Se mantuvieron contactos con emisoras profesionales, de las que se obtuvo ayuda y apoyo ocasionales. Se ha utilizado la emisora como complemento promotor de las actividades culturales y se ha logrado el interés de padres y profesores por ellas. Se ha logrado responsabilizar a los componentes de la emisora en el cuidado y organización de la misma.

Educación audiovisual y radio escolar : Radio Elio FM 100.6 emisora escolar.

Resumen basado en el que aporta la revista

Evaluating the efficacy of monaural vs. binaural FM fittings in children with auditory processing disorders

The purpose of this project was to determine whether a monaural FM or binaural FM fitting strategy is more appropriate for children with Auditory Processing Disorders.

Are distortion levels a problem with digital signal processing hearing aids and frequency modulation (FM) systems?

The purpose of this study was to examine objective and subjective distortion present when frequency modulation (FM) systems were coupled with four digital signal processing (DSP) hearing aids. Electroacoustic analysis and subjective listening tests by experienced audiologists revealed that distortion levels varied across hearing aids and channels.

A manual of FM systems for mainstream teachers

This paper presents a manual of frequency modulated (FM) sound systems designed for use by mainstream teachers who have hearing impaired students in their classrooms.

An examination of actors that impact technology introduction to FM

Developing and implementing a technology for Facilities Management (FM) can be a complex process. This is particularly the case when a technology impacts on an organisation as a whole. There are often a number of relevant actors, internal and external to FM, who should be engaged. This engagement is guided by the strategy of the organisation which is led by top management decisions. Indeed, it is top management who have the final decision to implement a technology. Actors of top management and other relevant actors will have their own discourses toward the implementation of the technology based on how they foresee the technology befittingly benefitting the organisation. This paper examines actors who play a relevant and necessary part in supporting and implementing a technology to FM. It examines how an actor’s discourse toward the project inhibits or speeds up the implementation of a technology. The methods used for this paper are based on a two year case study in a FM department where a technology development was observed and interviews with key participants were conducted. Critical discourse analysis is used to analyse the data. Prominent discourses that emerge from the data are emphasised during the process of introducing the technology. This research moves beyond focusing purely on project successes but examines the difficulties and the hurdles that must be overcome to reach a successful technology implementation.

New tools to boost butterfly habitat quality in existing grass buffer strips

There are approximately 29,000 ha of grass buffer strips in the UK under Agri-Environment Schemes; however, typically they are floristically poor and as such are of limited biodiversity value. Introducing a sown wildflower component has the potential to increase dramatically the value of these buffer strips for a suite of native species, including butterflies. This study investigates management practices aiming to promote the establishment and maintenance of wildflowers in existing buffer strips. The effectiveness of two methods used to increase the establishment of wildflowers for the benefit of native butterfly species were tested, both individually and in combination. The management practices were: (1) the application of a selective graminicide (fluazifop-P-butyl) which reduces the dominance of competitive grasses; and (2) scarification of the soil which creates germination niches for sown wildflower seeds. A wildflower seed mix consisting of nine species was sown in conjunction with the scarification treatment. Responses of wildflowers and butterflies were monitored for two years after establishment. Results indicate that the combined scarification and graminicide treatment produced the greatest cover and species richness of sown wildflowers. Butterfly abundance, species richness and diversity were positively correlated with sown wildflower species richness, with the highest values in the combined scarification and graminicide treatment. These findings have confirmed the importance of both scarification as a means of introducing wildflower seed into existing buffer strips, and subsequent management using graminicides, for the benefit of butterflies. Application of this approach could provide tools to help butterfly conservation on farmland in the future.

A comparison between bond graphs switching modelling techniques implemented on a boost dc-dc converter

A Bond Graph is a graphical modelling technique that allows the representation of energy flow between the components of a system. When used to model power electronic systems, it is necessary to incorporate bond graph elements to represent a switch. In this paper, three different methods of modelling switching devices are compared and contrasted: the Modulated Transformer with a binary modulation ratio (MTF), the ideal switch element, and the Switched Power Junction (SPJ) method. These three methods are used to model a dc-dc Boost converter and then run simulations in MATLAB/SIMULINK. To provide a reference to compare results, the converter is also simulated using PSPICE. Both quantitative and qualitative comparisons are made to determine the suitability of each of the three Bond Graph switch models in specific power electronics applications