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With the continued advances in wireless communications, geo-positioning, and consumer electronics, an infrastructure is emerging that enables location-based services that rely on the tracking of the continuously changing positions of entire populations of service users, termed moving objects. This scenario is characterized by large volumes of updates, for(More)
Sustained advances in wireless communications, geo-positioning, and consumer electronics pave the way to a kind of location-based service that relies on the tracking of the continuously changing positions of an entire population of service users. This type of service is characterized by large volumes of updates, giving prominence to techniques for location(More)
With the continued advances in wireless communications, geo-location technologies, and consumer electronics, it is becoming possible to accurately track the time-varying location of each vehicle in a population of vehicles. This paper reports on ongoing research that has as it objective to develop efficient tracking techniques. More specifically, while(More)
Oil and water fluorescence properties were studied under their excitation by 266 and 355 nm light, corresponding to the fourth and third harmonics of a Nd:YAG laser. The oil spill detection fluorosensor designed for onshore or shipboard installation is described and its test results are presented. The fluorosensor enables detection of several µm thick films(More)
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