Mark Bendig

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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)
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)
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