Abstract: Functionalized titanium nanotubes can be utilized to detect compounds of interest, for example peroxide-based explosives. The nanotubes may desirably be coated, for example with a silicon oxynitride coating, in order to improve detection performance and/or functionality in the presence of moisture, saline, or other conditions typically unfavorable to titanium nanotube detection devices and methods. Inexpensive, compact, reusable, and responsive sensors may be fabricated from the coated nanotubes.

Abstract: Functionalized titanium nanotubes can be utilized to detect compounds of interest, for example peroxide-based explosives. The nanotubes may desirably be coated, for example with a silicon oxynitride coating, in order to improve detection performance and/or functionality in the presence of moisture, saline, or other conditions typically unfavorable to titanium nanotube detection devices and methods. Inexpensive, compact, reusable, and responsive sensors may be fabricated from the coated nanotubes.

Abstract: A vehicle protection system includes an exterior airbag system housed about a vehicle exterior. The system includes at least one first airbag, at least one second airbag, and an inflator system for inflation of the airbags. The inflation system includes at least one inflator operably communicating with the airbags. A sensor system senses impending or actual collision data. The sensor system includes at least one sensor and at least one central computer processing unit for receipt and processing of the data and for selective activation of the inflator system. Upon activation of the inflator system, the at least one first airbag is inflated. The at least one second airbag is sequentially deployable after the at least one first airbag based on measurement of system operating conditions and processing of the operating conditions by the central computer processing unit.

Abstract: A vehicle protection system includes an exterior airbag system housed about a vehicle exterior. The system includes at least one first airbag, at least one second airbag, and an inflator system for inflation of the airbags. The inflation system includes at least one inflator operably communicating with the airbags. A sensor system senses impending or actual collision data. The sensor system includes at least one sensor and at least one central computer processing unit for receipt and processing of the data and for selective activation of the inflator system. Upon activation of the inflator system, the at least one first airbag is inflated. The at least one second airbag is sequentially deployable after the at least one first airbag based on measurement of system operating conditions and processing of the operating conditions by the central computer processing unit.

Abstract: A vehicle protection system 7 contains an airbag system 8 employing a plurality of sets of airbags 118a-118c external to the vehicle 9. Each set 118a-118c contains one or more airbags 118 wherein the plurality of sets 118a-118c are sequentially operated based on initial collision data, and then based on operating parameters such as pressure differentials over time.

Abstract: In various embodiments, the present disclosure provides a method of detecting triacetone triperoxide. In a particular implementation, the method includes providing an array of titanium nanostructures that include a sensitizing agent. The array is contacted with a fluid sample, such as vapor sample. The resistance of the array is measured. The measured resistance of the array can be used to determine whether the sample includes triacetone triperoxide. The nanostructures are, in some cases, titania nanotubes. The sensitizing agent is, in a specific example, zinc. The present disclosure also provides a triacetone triperoxide sensor that includes an array of nanostructures, at least a portion of which are sensitized with a sensitizer, such as one or more of Li+, Cu2+, In3+, Sb3+, Sc3+, NH4+, Na+, Zn2+, Cd2+, and Ti4+. A plurality of electrical contacts are coupled to the array.

Abstract: An inflator 10 of a vehicle occupant protection system contains an elongated housing 12 having a plurality of gas exit orifices 14 spaced along the length thereof. An ignition body 30 and propellant 16 are provided in lengths substantially equivalent to the length of the housing 12 wherein the ignition body 30 is placed in physical contact with the propellant body 16 for all or most of their respective lengths. Once the ignition body 30 is ignited upon a crash event, resultant uniform ignition and combustion across the length of the propellant 16 results in uniform gas generation and uniform inflation of an airbag 26, wherein the airbag 26 is at least substantially coextensive with and in fluid communication with the housing 12. Preferred mixtures of propellant 16 contain silicone, a perchlorate oxidizer, and a coolant.

Abstract: The thermal stability of an N,N-dinitramide salt of the formula M.sup.+ ?N(NO.sub.2).sub.2 !.sup.- where M.sup.+ is a nitrogen-containing cation, is improved by mixing with the N,N-dinitramide salt a compound of the formula ##STR1## where R, R' and R" are the same or different and are aryl or alkyl. A new composition of matter is formed by mixing the N,N-dinitramide salt and the prophosphatrane compound.

Abstract: A novel binder for the treatments of explosives and propellants to produce composition having high energy and reduced sensitivity comprising; poly (2-methyl-5-vinyl tetrazole) and a second polymer selected from the group consisting of polyethylene glycol, polyvinyl acetate, polyvinyl alcohol, polymethyl methacrylate, polyvinyledene chloride and polyvinyledene fluoride.

Abstract: The undesirable abrupt expansion and contraction of ammonium nitrate in the temperature range of use of a rocket motor and explosives (-55.degree. C. to 80.degree. C.) is eliminated by the addition of 0.5 to 2% by weight of a crystal growth inhibitor, specifically potassium fluoride (KF).