Abstract: A monitoring application and method in a disabled telecommunication device for monitoring communication sessions initiated by the device and detecting an emergency communication session that is initiated by the device. If an emergency communication session is detected, the monitoring application generates and transmits a message to a rating engine over a non-voice channel. The non-voice channel may be an unstructured supplementary service data (USSD) channel, a short message service (SMS) channel, or other like messaging channel. When the message is received via the non-voice channel, various callback techniques may be implemented to allow the disabled device to receive communications after the emergency communication session, even though such communications would normally be prevented as a result of a service lock.

Abstract: Described in detail herein is a system and method for allowing a device, such as a cell phone, to establish a messaging dialogue with a service provider, such as SMS messaging with a 911 call center. Furthermore, the service provider can receive location data of the mobile device. Further details and features are described herein.

Abstract: A shaped, flexible fuel and energetic system is presented. The shaped, flexible fuel comprises at least one polymeric binding material and porous silicon particles dispersed throughout the polymeric binding material. The porous silicon particles are prepared from a metallurgical grade silicon powder. The shaped, flexible fuel preferably includes shapes such as: an article, a film, a wire and a tape. The energetic system comprises the shaped, flexible fuel portion used alone or in combination with at least one oxidizer.

Abstract: A monitoring application and method in a disabled telecommunication device for monitoring communication sessions initiated by the device and detecting an emergency communication session that is initiated by the device. If an emergency communication session is detected, the monitoring application generates and transmits a message to a rating engine over a non-voice channel. The non-voice channel may be an unstructured supplementary service data (USSD) channel, a short message service (SMS) channel, or other like messaging channel. When the message is received via the non-voice channel, various callback techniques may be implemented to allow the disabled device to receive communications after the emergency communication session, even though such communications would normally be prevented as a result of a service lock.

Abstract: Described in detail herein is a system and method for allowing a device, such as a cell phone, to establish a messaging dialogue with a service provider, such as SMS messaging with a 911 call center. Furthermore, the service provider can receive location data of the mobile device. Further details and features are described herein.

Abstract: A system and method is described for broadcasting, e.g. commercial mobile alert messages (CMAM) or other messages including various text-based messages to a target area without substantially broadcasting to an area outside the target area. Further details and features are described herein.

Abstract: Silicon nanosponge particles prepared from a metallurgical grade silicon powder having an initial particle size ranging from about 1 micron to about 4 microns is presented. Each silicon nanosponge particle has a structure comprising a plurality of nanocrystals with pores disposed between the nanocrystals and throughout the entire nanosponge particle.

Abstract: Porous silicon particles are prepared from a metallurgical grade silicon powder having an initial particle size greater than about 1 micron is presented. Each porous silicon particle comprises a solid core surrounded by a porous silicon layer having a thickness greater than about 0.5 microns.

Abstract: A process for producing a silicon nitride compound is presented. A starting solution comprising fluorosilicic acid is provided. The starting solution is derived from a silicon, etching process wherein silicon is etched with a solution comprising hydrofluoric acid and where silicon powder has been removed. The starting solution is heated to yield a vapor solution comprising silicon tetrafluoride, hydrogen fluoride, and water. The hydrogen fluoride is separated from the vapor solution wherein a pure stream of silicon tetrafluoride and water vapor remain. The silicon tetrafluoride and water vapor are hydrolyzed to yield a concentrated fluorosilicic acid solution. The fluorosilicic acid is reacted with a base to yield a fluorosilicic salt. The fluorosilicic salt is heated to yield anhydrous silicon tetrafluoride. The anhydrous silicon tetrafluoride is reacted with a metal hydride to yield a monosilane. The monosilane is reacted to form a silicon compound and a silicon nitride compound.

Abstract: A shaped, flexible fuel and energetic system is presented. The shaped, flexible fuel comprises at least one polymeric binding material and porous silicon particles dispersed throughout the polymeric binding material. The porous silicon particles are prepared from a metallurgical grade silicon powder. The shaped, flexible fuel preferably includes shapes such as: an article, a film, a wire and a tape. The energetic system comprises the shaped, flexible fuel portion used alone or in combination with at least one oxidizer.

Abstract: A process for producing a silicon nitride compound is presented. A starting solution comprising fluorosilicic acid is provided. The starting solution is derived from a silicon, etching process wherein silicon is etched with a solution comprising hydrofluoric acid and where silicon powder has been removed. The starting solution is heated to yield a vapor solution comprising silicon tetrafluoride, hydrogen fluoride, and water. The hydrogen fluoride is separated from the vapor solution wherein a pure stream of silicon tetrafluoride and water vapor remain. The silicon tetrafluoride and water vapor are hydrolyzed to yield a concentrated fluorosilicic acid solution. The fluorosilicic acid is reacted with a base to yield a fluorosilicic salt. The fluorosilicic salt is heated to yield anhydrous silicon tetrafluoride. The anhydrous silicon tetrafluoride is reacted with a metal hydride to yield a monosilane. The monosilane is reacted to form a silicon compound and a silicon nitride compound.

Abstract: Silicon nanosponge particles prepared from a metallurgical grade silicon powder having an initial particle size ranging from about 1 micron to about 4 microns is presented. Each silicon nanosponge particle has a structure comprising a plurality of nanocrystals with pores disposed between the nanocrystals and throughout the entire nanosponge particle.

Abstract: Porous silicon particles are prepared from a metallurgical grade silicon powder having an initial particle size greater than about 1 micron is presented. Each porous silicon particle comprises a solid core surrounded by a porous silicon layer having a thickness greater than about 0.5 microns.