Abstract: Methods and devices are disclosed for providing audible, visual, and tactile alerts detectable by first responders in a geographic region impacted by a mass casualty event, such as a natural disaster or a terrorist attack. In certain aspects, an electronic device of an individual trapped within a damaged structure may establish wireless communications with a mobile cellular site and may receive a request to generate an alert audible to first responders. In response to the request, the electronic device may identify first device settings corresponding to the audible alert, and generate the audible alert in accordance with the obtained first device settings. In certain aspects, the audible alert may enable first responders to identify locations of victims trapped within structures damaged by the mass casualty event.

Abstract: The invention pertains to a head-disk assembly device, “mass spin-valve” or “gravitational rectifier” and method of producing gravitomagnetic induction utilizing Nano-features; Nano-bumps and Nano-pits; fabricated on the surface of a hard disk. The device includes a computer hard disk; a piezoelectric glide head and/or a GMR read head; a typical hard drive's electronics; wherein, defects are fabricated on the said disk using a Focused Ion Beam (FIB) by depositing requisite number of nanobumps of specified height, and etching equal number of nanopits of specified depth a few mils or mm apart on a pre-decided radius. By spinning the said nano-features disk produce (1) an associated mechanical force utilizing a piezoelectric glide head and/or (2) an associated magnetic force utilizing a GMR read head; for (a) general use in surface characterization work and (b) for producing power by the presence or the absence of matter on a spinning disk.

Abstract: Methods and devices are disclosed for providing audible, visual, and tactile alerts detectable by first responders in a geographic region impacted by a mass casualty event, such as a natural disaster or a terrorist attack. In certain aspects, an electronic device of an individual trapped within a damaged structure may establish wireless communications with a mobile cellular site and may receive a request to generate an alert audible to first responders. In response to the request, the electronic device may identify first device settings corresponding to the audible alert, and generate the audible alert in accordance with the obtained first device settings. In certain aspects, the audible alert may enable first responders to identify locations of victims trapped within structures damaged by the mass casualty event.

Abstract: The invention pertains to a head-disk assembly device, “mass spin-valve” or “gravitational rectifier” and method of producing gravitomagnetic induction utilizing Nano-features; Nano-bumps and Nano-pits; fabricated on the surface of a hard disk. The device includes a computer hard disk; a piezoelectric glide head and/or a GMR read head; a typical hard drive's electronics; wherein, defects are fabricated on the said disk using a Focused Ion Beam (FIB) by depositing requisite number of nanobumps of specified height, and etching equal number of nanopits of specified depth a few mils or mm apart on a pre-decided radius. By spinning the said nano-features disk produce (1) an associated mechanical force utilizing a piezoelectric glide head and/or (2) an associated magnetic force utilizing a GMR read head; for (a) general use in surface characterization work and (b) for producing power by the presence or the absence of matter on a spinning disk.