Abstract: Systems and methods are provided for determining localization information for sources of seismic energy positioned below a ground surface. In accord with one series of embodiments, a method of determining localization information receives data from first seismic sensors in a first three dimensional array containing sensors emplaced below the ground surface and coherently processes the signals to provide three dimensional localization information that enables determination of an angle of arrival for a signal of interest. In combination with data from second seismic sensors in a second three dimensional array the method provides determination of a position in three dimensional space.

Abstract: A device is described based on flexible photonic crystal, which is comprised of a periodic array of high index dielectric material embedded in a flexible polymer. Dynamic, real time tunability is achieved by the application of a variable force with a MEMS actuator or other means. The force induces changes in the crystal structure of the photonic crystal, and consequently modifies the photonic band structure. The concept was demonstrated by a theoretical investigation on the effect of mechanical stress on the anomalous refraction behavior of the flexible PC, and a very wide tunability in beam propagation direction was observed. Experimental studies on fabrication and characterizations of the flexible photonic crystal structures were also carried out. High quality flexible PC structures were fabricated by e-beam lithography and anisotropic etching processes.

Abstract: Animal restraint system for use in safely transporting non-caged animals, such as dogs, on a pickup truck bed. The system includes a four-point anchored arrangement of straps that facilitate a lengthwise symmetrical placement of the animal restraint system within the bed of a pickup truck. The system includes a plurality of anchor devices secured to the forward and rear corner areas of a truck bed, a first cross-strap arrangement, including a pair of adjustable length strap members mechanically joined at one end and having respective mechanical anchors at another end, and a second cross-strap arrangement, including a pair of fixed length strap members mechanically joined at one end and also having mechanical anchors at another end. Each mechanical anchor associated with each cross-strap arrangement being mechanically secured to the anchor devices at the forward and rear corner areas of the truck bed.