New passive telemetry system

Passive telemetry system enables the monitoring of vital biological functions from living organisms, without external connections or power sources. The FM system, using a phase locked loop technique, keeps the information frequency and powering frequencies separate

Information technology in educational management as an emerging discipline

This chapter introduces the application of computerized management information systems in schools and presents a brief history of the dynamic area of Information Technology in Educational Management (ITEM). Subsequently, the background of this special issue and a framework for its contents are portrayed. Finally, an overview is presented of the contents of the special issue

Multi-frequency resonant antenna

Antenna is simultaneously resonant at 8.75 MHz, 11.825 MHz, and 20.562 MHz. It provides a near-field radiator which has a constant current distribution across its radiating elements for each of the resonant frequencies

Verlenging groeiseizoen grasland

Extended growing season for grassland means more grass growth in the late autumn, but also an advanced growth in spring. Fertilization, grass species, grassland management and after crops offers opportunities. The grassland management influences the utilization of the produced grass in this period