Fluorescent concentrators (see Figure 1) are developed and investigated in solar energy research in order to improve the efficiency and applicability of solar cells. This is achieved by concentrating even diffuse light on cloudy days on small solar cells, using a fluorescent dye enclosed in low-cost acrylic glass. We developed a Monte Carlo simulation model… (More)
WordView is a tool that shows how words are used in naturally occurring phrases to support the intelligent parsing of such phrases. It embodies an easy to understand graphic summary and a user-controllable inspection facility.
The present study recorded prospectively subjective complaints after lumbar puncture as diagnostic procedure (n = 59), spinal - (n = 41) and peridural anaesthesia (n = 45) over a time interval of 28 days. Posture dependent headaches were never observed following peridural anaesthesis. This result disproves the hypothesis of a purely psychogenic origin of… (More)