The present invention discloses a method and an apparatus for controlling an electronic nail gun, comprising a trigger link rod and a trigger. The application communication environment may include a central shared object store of interfaced software objects that operate on a server computer and communicate with one or more software applications on the server computer. The anion may contain an organic bridge to bond neighboring aluminum atoms that would otherwise be susceptible to leaching aluminum trichloride. The correlation transformation subtracts the mean of the correlation measurements over all tracked satellites from each of the correlation measurements calculated by the correlator. The porous scintillator crystal comprises a porous structure including voids, wherein the porous structure is a phase-separated structure having voids formed therein and comprises materials constituting a eutectic composition of the phase-separated structure and at least one void in the porous structure extend in a direction perpendicular to a principal plane of the porous scintillator crystal. Lasers, radar, and other types of radiation may be used to illuminate objects in a detection region, with radiation returns detected and applied to a pattern classifier to determine whether the detected airborne biota are harmful, benign or beneficial.