BACKGROUND Whole spine scanography (WSS) is a radiologic examination that requires whole body X-ray exposure. Consequently, the amount of patient radiation exposure is higher than the radiation dose following routine X-ray examination. OBJECTIVES Several studies have evaluated the patient effective dose (ED) following single exposure film-screen WSS. The objective of this study was to evaluat...

Access to online experiments permitted by the current technology offers more flexibility than local presence. However, it also presents new challenges, such as which information should be transfered from the process to the remote user to describe with sufficient details the progress of the experimentation, and from the user to the process to control it and to test interesting working conditions...

Databases have been proposed as the chosen platform to develop automated control systems for environments where the state of the system changes rapidly, and actions need to be taken with timing constraints, such as stock trading, air tra c control, network management and process control to name a few. The workload in such systems consist primarily of two types: (a) updates, which report the sta...

The paper analyzes some of Tesla's works and his most remarkable views concerning the problem of formulating theoretical bases of automatic control. As a tribute to Tesla's work on remote control of automated systems, as well to his (at the time) far-seeing visions, special attention is paid to solving complex problem of control and feedback application. A more detailed discussion of the way an...

In this paper the effect on energy consumption and pollution of fuzzy automatic control of a rotary kiln is investigated. The computer-based fuzzy control system is installed at the Larko ferronickel plant in Larymna, Greece, by the Danish firm F .L. Smidth & Co. A/S. Operation characteristics for the manual operation against automatic control are defined and compared. Preliminary results show ...