Theoretical analysis of the electrical aspects of the basic electro-impulse problem in aircraft de-icing applications

A method of modelling a system consisting of a cylindrical coil with its axis perpendicular to a metal plate of finite thickness, and a simple electrical circuit for producing a transient current in the coil, is discussed in the context of using such a system for de-icing aircraft surfaces. A transmission line model of the coil and metal plate is developed as the heart of the system model. It is shown that this transmission model is central to calculation of the coil impedance, the coil current, the magnetic fields established on the surfaces of the metal plate, and the resultant total force between the coil and the plate. FORTRAN algorithms were developed for numerical calculation of each of these quantities, and the algorithms were applied to an experimental prototype system in which these quantities had been measured. Good agreement is seen to exist between the predicted and measured results

The genesis of an Adult Education programme in science

Science and technology are now part of our everyday lives, and their impact will undoubtedly continue to grow in ever more sophisticated and subtle ways. Inevitably, this will lead to debates and controversy about the ethics and risks that science brings with it; debates in which the general public should be fully engaged. But many adults inevitably feel alienated from any involvement in such a debate because of their lack of scientific knowledge. There is a very urgent need to engage not only young people but also more mature adults in scientific discussion at levels that are both meaningful and serious. In Newcastle we are developing an adult science education programme which brings together local adult education providers, universities and industry to supply a cohesive series of short events which not only allow adults to learn and engage with contemporary science (and how it impacts on their everyday lives), but also offers the opportunity to progress to more advanced courses leading to formal qualifications. In this article we outline the development of this programme which was greatly assisted by the appointment of an ‘Adult Education Fellow’ (funded by The Higher Education Academy Physical Science Centre). Over the course of one year the Fellow established the consortium, identified what the detailed demand was, prepared the course and raised funds ready for its start in 2006

Motor Vehicle Insurance Reform: Revisiting the Uninsured Driver

The Florida Legislature in 1988 addressed problems regarding uninsured motorists by passing the Motor Vehicle Insurance Reform Act of 1988. In this Article, the authors analyze the problems and the Legislature\u27s latest attempt to solve them. The authors detail the specific mechanisms designed to eliminate financially irresponsible motorists in Florida, and explain the various policy considerations behind the enactments