Abstract: A system for testing a fiber-optic component with infrared radiation is provided. The testing system has a source of infrared radiation, an optic coupler, a detecting circuit, and an analog tape recorder. The optic coupler directs the infrared radiation onto the fiber-optic component. The detection circuit is electrically connected to the tape recorder. The detection circuit has an amplifier, a potentiometer connected in parallel to the amplifier, and a photoelectric transducer connected in series to the amplifier. These components are mounted on a non-conductive board. A power source supplies voltage and is connected to the amplifier. The circuit operates by having the photoelectric transducer sense the infrared radiation emitted from the tested fiber-optic component and convert the radiation into an electrical signal. The amplifier then amplifies the electrical signal to the voltage necessary for driving the tape recorder.

Abstract: An Identification Friend or Foe (IFF) method and system are provided to dct i) friendly ground-based vehicles, ii) each of the vehicle's unique identity, and iii) each of the vehicle's approximate position. A video image of an area of interest on the ground is generated from an aircraft. The video image is defined by a matrix of pixels. A range from the aircraft to a reference position within the area of interest is provided. The reference position is defined by known latitude, longitude and height within the area of interest and is further defined in the matrix of pixels by matrix coordinates. A coded signal is transmitted from a vehicle on the ground to uniquely identify the vehicle and identify the vehicle as friendly. The coded signal is also detectable as part of the video image when the coded signal is transmitted from the area of interest. The vehicle position within the area of interest is thus defined in the matrix of pixels by matrix coordinates.

Abstract: A flexible core eddy current probe is disclosed for testing of curved or egular surfaces. The core is comprised of a flexible binder loaded with a powdered magnetic material and then formed into a specific flexible core shape continuously adaptable to irregular or curved surfaces. The flexible core probe has specific application to carbon fiber reinforced composite components having contoured surfaces.

Abstract: The toroidal computer memory system utilizes toroidal memory paths in its chitecture to enable memory locations along those paths to be obtained in a single access, as compared to multiple accesses typically required by conventional linear computer memory. The storage/retrievable media is designed to replicate paths on the surface of a torus. By defining certain parameters and the mathematical properties of these memory paths in the electronics of a controller, points on the memory paths can be accessed from the storage/retrieval media more efficiently than conventional computer memory.

Abstract: An advanced infrared (IR) Sensor based on the present invention would add the following two elements to a basic staring IR sensor using a 2 dimensional array of detector elements to significantly enhance the detection sensitivity of the device. The added features are: (1) Additional optics or modification to the normal optics to scan the image over a small fraction of the array dimensions so that each point in the image is sampled by a number of different detector elements, and (2) signal processing to combine the multiple samples for each image point so as to exclude the effects of "dead", "weak" or excessively noisy detector elements and average out the element to element sensitivity variations and calibration/correction imperfections of the "normal" elements.

Abstract: 2-Azido-2,2-difluoroethanol is useful in the preparation of energetic placizers for explosives and propellants. Ethyl 2-bromo-2,2-difluoroacetate reacts with sodium azide to produce ethyl 2-azido-2,2-difluoroacetate which then reacts with sodium borohydride in water to produce the 2-azido-2,2-difluoroethanol.

Abstract: 1,3,4-Oxadiazoles of the formula ##STR1## are prepared by cyclization (dehydration) of the corresponding diacylhydines of the formula R.sub.1 C(O)NHNHC(O)R.sub.2 with phosphorous pentachloride or phosphorous oxychloride wherein R.sub.1 is --CF.sub.2 CF.sub.2 CF.sub.2 SF.sub.5, --CF.sub.2 CF.sub.2 SF.sub.5, or --CH.sub.2 SF.sub.5 and R.sub.2 is --CH.sub.2 CH.sub.2 C(NO.sub.2).sub.3, --CH.sub.2 CH.sub.2 C(NO.sub.2).sub.2 F, --CF.sub.2 CF.sub.2 CF.sub.3, --CF.sub.2 CF.sub.3, --CF.sub.3, or --CH.sub.2 SF.sub.5. The compounds are useful as plasticizers.

Abstract: A field coil stator of an electrical generator is fixed to the fuse body of n explosive projectile within which the rotor of the generator is supported for limited rotation dampened by a pendulum to effectively induce an electrical output from the stator field coils during and after launch of the projectile from an internally rifled gun barrel. The rotor is rotationally isolated from the stator during launch by shock absorbing means to avoid defeat of the pendulum dampening action on the rotor.

Abstract: The detonation wave velocity in a solid explosive body of material, incred by the "channel effect", is further increased by compounding of the "channel effect" and/or by partial shock wave interruption by means of a threaded or rifled passage wall surface in a continuous, open channel arrangement. The high velocity detonation wave can be used to increase the jet velocity of shaped charges.

Abstract: An explosive round is formed by a bundle of fibers made of explosive matel held in peripheral contact with each other within an outer casing. Axially extending channel passages thereby extend between the fibers to conduct shock waves periodically impacting explosive blockage plugs in order to generate auxiliary detonation waves in forward and reverse directions. The auxiliary waves propagated in the reverse direction collide with the original detonation wave in the fibers between the blockage plugs at the locations of axial gaps between the fiber segments so as to reduce peak pressure oscillation.

Abstract: A wrench for installing or removing an electrical connector having a collar s provided. The wrench comprises two handles, an elongated sleeve, a shaft, a cam, and a grip. One end of the elongated sleeve slidably attaches to a hub of the grip while the other end slidably attaches to the first handle. The grip further comprises a semicircular-shaped claw which engages the collar of the electrical connector. The shaft is rotatably disposed within the interior of the sleeve. One end of the shaft is eccentrically connected to the cam and the other end is connected to the second handle. The second handle is positioned within an aperture of the first handle. During operation of the wrench, the user grasps both handles and maneuvers the wrench between a series of cables on one side of an electric terminal assembly having a plurality of interconnected cables until the grip is positioned over the collar of a connector of a selected electrical cable.

Abstract: A Nb-Ti or Nb-Zr low temperature superconducting (LTS) wire is coat with ten AgN0.sub.3 which is then decomposed to form a uniform silver metal (Ag) coating on the LTS wire. A uniform coating of molten Al or Al alloy is formed on the Ag coated LTS wire and then solidified. A bundle of the coated LTS wires is inserted into an Al or Al alloy tube and cold worked to form a multifilamentary LTS cable comprising the Ag coated LTS wires each surrounded by an Al or Al alloy matrix.

Abstract: 5,7-Dinitro-5,7-diaza-1,3-dioxabicyclo[3:3:0] octan-2-one is an explosive ich is comparable in energy (detonation pressure) to RDX but which has an impact sensitivity comparable to TNT. It is prepared by condensing one mole of methylenedinitramine with one mole of 4,5-dichloro-1,3-dioxolan-2-one.

Abstract: A device for protecting a missile guidance system from laser attack by suying replacement detectors if the working detector is damaged. The replacement detector can either be mounted on an indexing turret such that each detector can be alternately rotated into the focal position or they can be mounted in fixed positions and a mirror rotated to each fixed position.

Abstract: A novel formulation of liquid propellants comprising a mixture of high eny ingredients consisting of bis(2-fluoro-2,2-dinitroethyl)amine, bis(2-fluoro-2,2-dinitroethyl)formal and bis(2,2,2-trinitroethyl)formal together with conventional liquid fuels and propellants to create a synergistic formulation having new and unexpected physical and chemical properties.

Abstract: A high temperature superconducting wire or yarn has a first layer thereon yttria, a third layer of barium cuprate, and a second layer of a superconducting YBa.sub.2 Cu.sub.3 O.sub.7-x formed at the interface between the first and third layers. The wire can be yttrium and the yarn can be alumina.

Abstract: A thin layer of silver metal is formed between a molybdenum surface and a eel surface. The silver metal layer is diffusion bonded to the molybdenum surface and diffusion bonded to the steel surface, thus bonding the molybdenum and steel surfaces together.

Abstract: A process by which 1,7-dihydroxy-2,4,6-trinitro-2,4,6-triazaheptane or 1,9-dihydroxy-2,4,6,8-tetranitro-2,4,6,8-tetraazanonane is produced by hydrolyzing 1,7-diacetoxy-2,4,6-trinitro-2,4,6-triazaheptane or 1,9-diacetoxy-2,4,6,8-tetranitro-2,4,6,8-tetraazanonane with concentrated aqeuous hydrochloric acid comprising from 28 to 32 weight percent of hydrogen chloride with the remainder being water.

Abstract: A reconfigurable digital optical lookup table for solving Boolean equations sing an array of bistable optical devices is provided. A single light source is divided into a matrix of light beams using binary phase gratings and a lens system. This matrix of beams is modulated by a spatial light modulator symmetric self electro-optic effect device (S-SEED) according to the desired lookup table. The modulated light beams are used to set an S-SEED array with the lookup table. The rows and columns of the S-SEED array are then reset according to the inputs to the Boolean equation. Once all of the inputs have been processed, the S-SEED array will have only one member whose state has not been affected by the inputs, and the value of this S-SEED corresponds to the solution to the Boolean equation. The final result is output by using a matrix of equal intensity light beams and a mask to read out the state of one side of the S-SEEDs, and focusing the result onto a detector.

Abstract: An m-dimensional memory with m-1 dimensional hyperplane access. Random acs memory (RAM) circuits are arranged in a plurality of groups for storing data words corresponding to vertices of an m-dimensional lattice. Each vertex of the lattice is defined by an m-tuple. The minimum number of RAM circuits required to realize the memory architecture of the present invention is based upon the size of the lattice and the distribution of the data words in memory is based upon the m-tuples used to define the lattice.