A differential absorption lidar (DIAL) instrument for automated profiling of water vapor in the lower troposphere has been designed, tested, and is in routine operation at Montana State University. The laser transmitter for the DIAL instrument uses a widely tunable external cavity diode laser (ECDL) to injection seed two cascaded semiconductor optical amplifiers (SOAs) to produce a laser transm...

Methane is one of the most important gaseous hydrocarbon species for both industrial and environmental reasons. Understanding and quantifying methane emissions to atmosphere is therefore an important element of climate change research. Range-resolved infrared differential absorption Lidar (DIAL) measurements provide the means to map and quantify a wide range of different methane sources. This p...

Dial-a-ride systems attract great attentions as a style of new transportation systems for urban areas. While it is reported that such systems improve usability of bus systems when applied in a small town or area, it is not obvious how and under what conditions the system are reasonable in comparison to traditional fixed-route bus systems. We conducted several computer simulations of dial-a-ride...

Dieser Beitrag präsentiert DIAL (Distributed InterActive Lecture), ein BigBlueButtonbasiertes System für interaktive Live-Übertragungen von Vorlesungen. DIAL erweitert das Konferenzsystem BigBlueButton derart, dass Studierenden Zugang zum Chatund Umfragesystem aus dem Stand-By ihres Endgerätes heraus ermöglicht wird, d.h. ohne die Notwendigkeit einer permanenten Verbindung. Damit ermöglicht DIA...