Abstract: In some embodiments, a spectrometer analysis system may include a spectrometer having an X-ray assembly with one or more X-ray sources and one or more X-ray detectors. The spectrometer may have an electronic evaluation unit communicatively coupled to the X-ray assembly. The spectrometer analysis system may include a computing device communicatively coupled to the X-ray assembly and the electronic evaluation unit. The computing device may be configured to compare at least one of a plurality of features of a pixel spectrum received at a first time to at least one of the plurality of features of the pixel spectrum received at a second time. The spectrometer analysis system may include one or more motors communicatively coupled to the computing device and configured to adjust a distance between a sample and the spectrometer based at least in part on the comparing by the computing device.

Abstract: Apparatus and methods for estimating a geographical position corresponding to an event associated with operation of a wireless device communicating in a wireless communications network. The time and distance between the occurrence of the event and the related time and speed of the wireless device of at least one of a first and second geographical position, respectively measured before and after the event, are analyzed. These analyses includes comparing those metrics to predetermined time and distance thresholds to associate and/or estimate a geographic position of the wireless device with the event.