We find out about a group learning study and the data collection devices involved. (teachermagazine.com.au)
All of the breath collection devices were designed to measure breath alcohol concentrations that were related back to blood alcohol concentrations. (intox.com)
With a congestion pricing system, by contrast, a widespread network of inexpensive data - collection devices silently records everyone's movements in a central log, without anyone noticing. (networkmusings.blogspot.ru)