Phenomenology and system engineering of micro- and nano-antenna FPA sensors for detection of concealed weapons and improvised explosive devices

The ability of millimetre wave and terahertz systems to penetrate clothing is well known. The fact that the transmission of clothing and the reflectivity of the body vary as a function of frequency is less so. Several instruments have now been developed to exploit this capability. The choice of operating frequency, however, has often been associated with the maturity and the cost of the enabling technology rather than a sound systems engineering approach. Top level user and systems requirements have been derived to inform the development of design concepts. Emerging micro and nano technology concepts have been reviewed and we have demonstrated how these can be evaluated against these requirements by simulation using OpenFx. Openfx is an open source suite of 3D tools for modeling, animation and visualization which has been modified for use at millimeter waves. © 2012 SPIE.

Standoff detection of weapons and contraband in the 100 GHz to 1 THz region

The techniques and technologies currently being investigated to detect weapons and contraband concealed on persons under clothing are reviewed. The basic phenomenology of the atmosphere and materials that must be understood in order to realize such a system are discussed. The component issues and architectural designs needed to realize systems are outlined. Some conclusions with respect to further technology developments are presented.

Breaking the Intimate Screen: Pre-Recording, Special Effects and the Aesthetics of Early British Television

The technological constraints of early British television encouraged drama productions which emphasised the immediate, the enclosed and the close-up, an approach which Jason Jacobs described in the title of his seminal study as 'the intimate screen'. While Jacobs' book showed that this conception of early British television drama was only part of the reality, he did not focus on the role that special effects played in expanding the scope of the early television screen. This article will focus upon this role, showing that special effects were not only of use in expanding the temporal and spatial scope of television, but were also considered to be of interest to the audience as a way of exploring the new medium, receiving coverage in the popular press. These effects included pre-recorded film inserts, pre-recorded narration, multiple sets, model work and animation, combined with the live studio performances. Drawing upon archival research into television production files and scripts as well as audience responses and periodical coverage of television at the time of broadcast, this article will focus on telefantasy. This genre offered particular opportunities for utilising effects in ways that seemed appropriate for the experimentation with the form of television and for the drama narratives. This period also saw a variety of shifts within television as the BBC sought to determine a specific identity and understand the possibilities for the new medium.
This research also incorporates the BBC's own research and internal dialogue concerning audiences and how their tastes should best be met, at a time when the television audience was not only growing in terms of number but was also expanding geographically and socially beyond the moneyed Londoners who could afford the first television sets and were within range of the Alexandra Palace transmissions. The primary case study for this article will be the 1949 production of H.G.Wells’ The Time Machine, which incorporated pre-recorded audio and film inserts, which expanded the narrative out of the live studio performance both temporally and spatially, with the effects work receiving coverage in the popular magazine Illustrated. Other productions considered will be the 1938 and 1948 productions of RUR, the 1948 production of Blithe Spirit, and the 1950 adaptation of The Strange Case of Dr Jekyll and Mr Hyde. Despite the focus on telefantasy, this article will also include examples from other genres, both dramatic and factual, showing how the BBC's response to the changing television audience was to restrict drama to a more 'realistic' aesthetic and to move experimentation with televisual form to non-drama productions such as variety performances.

Heritability and The Units of Selection: A defense of Genic Selectionism

Tesina elaborada para obtener el MPhil en la Universidad de Cambridge, Inglaterra, 1987

Links Between Special Schools and Mainstream Schools: a Follow-up Survey

This article reports the findings from a survey of special schools in England and Wales regarding their links with mainstream schools. This survey was a follow-up of two previous surveys undertaken in mid-1987 and 1993 respectively. Data were elicited about visits made by pupils, teachers and support assistants both from special schools to mainstream schools and from mainstream schools to the special schools. Over two-thirds of special schools in England and Wales responded, the sample reflecting the distribution of types of special schools nationally. Findings indicated that the degree of link activity has been maintained over the years but it is relatively restricted in terms of the number of pupils and staff involved, and there does not seem to be evidence of the strategic use of placements.

Map of Woodruff and Sanderson Lots - Victoria lawn Cemetery

Map showing the Woodruff and Sanderson plots in the St. Catharines Cemetery (This is a photocopy), section P, division 9, April 9, 1932.

Special needs and early years : a practitioner's guide.

Recurso para profesionales, y para todos aquellos que trabajan con niños pequeños con necesidades especiales y sus familias. Examina el verdadero problema del desarrollo afectivo, cómo esto puede influir en el progreso del niño, y reconoce la importancia de la colaboración con los padres. La autora combina la teoría y la práctica para proporcionar un análisis detallado de la prestación para los niños pequeños con necesidades adicionales. Ofrece los objetivos de aprendizaje; puntos de reflexión para facilitar el estudio independiente y el pensamiento crítico; estudio de casos, que cubren desde el nacimiento hasta los ocho años; el papel de los padres, la expresión del alumno, escuchar a los niños, toma de una visión integral del niño, y temas de actualidad en torno a la diversidad y la inserción.

Student support materials por AQA A2 Physics : unit 5 nuclear and thermal physics and option units.

Libro de apoyo a los alumnos de bachillerato en el área de la Física. Abarca los siguientes temas: radioactividad, energía nuclear, física térmica, astrofísica, física médica, física aplicada e hitos en la historia de la física. Incluye también una sección para la preparación de los exámenes oficiales con ayudas sobre el funcionamiento de la ciencia, el uso de algoritmos y logaritmos, datos y fórmulas, preguntas similares a los exámenes oficiales, y respuestas, explicaciones y consejos para la superación de las pruebas.