Real-time imaging and wavevector analyses of radio waves incident to electromagnetic absorbers
Radio waves incident to electromagnetic absorbers have been experimentally visualized for the first time, which has been accomplished by the real-time visualization method for high-frequency electric field distributions: the live electrooptic imaging technique. Imaged have been electromagnetic reflections, refractions, and standing wave formations at sheet absorbers as well as gradual variations of wave fronts at a ravine plane of pyramidal absorber. Their wave properties have been clarified qualitatively as well as quantitatively by experimental mapped wave vectors.
Agile and compact near-field analyses of onboard Bluetooth module by live electrooptic imaging
Potentially prompt and compact method for near-field analyses both in the real and wavenumber spaces have been applied successfully to RF emissions from a commercially available onboard Bluetooth module. The new method is based on real-time images of near electric field, acquired and displayed by the live electrooptic imaging technique in the asynchronous operation mode. Such near-field features of the module have been clarified as precise location of emission origin, geometries of wave fronts, distribution of wave-vectors, and angular dependence of emission power.
What is an archival education?1
This article introduces the approach to Master's level archival education adopted at the University of Manitoba. It is intended as a contribution to the recently renewed discussion of graduate archival education in the UK and Ireland. The author maintains that recent major developments in the accessibility, uses, and very conception of archives powerfully underscore the distinctiveness of archival work. These developments foster continued collaboration between archivists and those in related professions such as records management, but, more importantly, reinforce their longstanding distinctiveness. The article discusses why and how the University of Manitoba has responded to the increasingly complex challenges facing archivists and archival educators in this evolving setting with an archival, conceptual, historical, and research-oriented curriculum.