Abstract: An improved method of preparing 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.05,9.03,11]dodecane) (HNIW) is disclosed. The compound is useful as a high energy, high density explosive or propellant oxidizer.

Abstract: A device and method for performing clutter rejection through edge integran. The invention uses optical flow estimation to produce target centering information which is used to control an image source so that a detected moving target is maintained in the center of an image containing the target and accompanying clutter while continuous, real-time integration of the target edges is performed. The output image produced contains an enhanced target and the target to clutter ratio is, therefore, enhanced.

Abstract: The apparatus and method measures the shrinkage of rocket motor propellant hat is caused during curing and may control this shrinkage by thermally expanding it to prevent creation of voids and cracks. The apparatus heats the propellant compound during curing. A laser emits radiation onto the compound and a detector receives reflected radiation from the compound and provides signals representative of the size of the volume of the compound. An interconnected indicator provides readouts representative of the size. A temperature controller coupled to a processor and a heater controls the heating of the compound to regulate its thermal expansion and consequent volume. The method calls for heating the compound during curing and radiating it with a laser. Reflected radiation is detected to provide signals representative of the volume. Readouts of the signals represent the relative size of the compound.

Abstract: A secured network system comprising a readykey controller connected to a st card reader and a power relay switch. The user inserts a microchip embedded card into the first card reader which transmits a first electrical authorization signal to the readykey controller indicating that the user is authorized to use a computer for receiving and processing classified data. The readykey controller then supplies a first enable signal to a power relay switch activating the power relay switch which couples the computer's power supply to an external power source. The secured network system also allows the user to receive and process classified data, by setting a manual A/B switch to a predetermined position which allows a secured network server to be connected to the computer. The user next inserts his proximity card into a second card reader which then transmits a second electrical authorization signal to the readykey controller indicating that the user is authorized to receive and process classified data.

Abstract: An adhering, continuous, polycrystalline diamond film is deposited on a z sulfide substrate by forming a refractory nitride interlayer directly on the substrate and then depositing diamond on the interlayer in a vacuum chamber containing a microwave activated mixture of hydrogen and a gas including carbon. The diamond film may be of optical quality and may be deposited without mechanical treatment or seeding of the zinc sulfide substrate or the nitride interlayer. However, diamond deposition may be facilitated by abrasion of the interlayer before diamond deposition.

Abstract: Sampling interfaces and methods of operation thereof having increased duty cycles and pressure equalizations that improve sensing of airborne metals in air samples fed to a continuous emissions monitor. Residual pressure in one or two sample reservoirs (loops) can be automatically equalized just prior to pneumatic connection between each sample reservoir loop and plasma in a plasma torch, thus minimizing or eliminating perturbation of the plasma. Deliberate sequential activation of valves allows each sample reservoir loop to be first isolated from the vacuum pump, and then momentarily as its pressure is equalized, it remains isolated from the plasma as well. Finally, pneumatic connection is made between each sample reservoir loop and the plasma allowing the contents of each sample reservoir (now at the same pressure as the plasma) to be transported into the plasma.

Abstract: Apparatus for generating a ring vortex which will damage the hull of the get vessel. The apparatus comprises a torpedo which is launched from an attack submarine in the direction of the target vessel. When the torpedo is at a predetermined position, the torpedo is detonated. Detonation of the torpedo results in the generation of a ring vortex. The ring vortex is directed toward the hull of the target vessel and will impact the hull of the target vessel with sufficient force to destroy or disable the target vessel. Positioned about the periphery of the torpedo are a plurality of necklace charges. The torpedo also has a central charge which is located near the front end of the torpedo. When detonated each necklace charge forms a ring of imploding gas bubbles which collapse inward. At a predetermined time period after the necklace charges are denoted, the main charge within the torpedo is denoted resulting in the generation of an expanding gas bubble which expands outwardly.

Abstract: An adhering, continuous diamond film of optical or semiconductor quality is deposited on a substrate by forming on the substrate a layer of a nitride and then depositing diamond on the nitride without mechanical treatment or seeding of the substrate or the nitride. A substrate of silicon or silicon carbide has been used by depositing a layer of silicon dioxide directly on the substrate and then directly depositing the nitride layer on the silicon dioxide. A polycrystalline diamond film has been deposited by heating the substrate and nitride layer in a vacuum chamber containing a microwave activated mixture of hydrogen and a gas including carbon with the nitride being a refractory nitride to withstand the temperature at which the diamond is deposited. Deposition of the diamond is facilitated by adding oxygen to the mixture after a sufficient thickness of diamond is deposited to protect the nitride layer from oxidation.

Abstract: A free gyro for use with a missile's seeker which allows the seeker to tr the target. The free gyro includes a support structure having a pair of roll axis forks which support a pitch gimbal and allow for rotational movement of the pitch gimbal about a pitch axis. Attached to the pitch gimbal is an outer gimbal support structure which includes a U shaped support member having a pair of support posts which support an outer gimbal ring and allow for rotational movement of the outer gimbal ring about the pitch axis. The outer gimbal ring supports and provides for rotational movement of an inner gimbal ring about an inner gimbal axis which is perpendicular to the pitch axis. The inner gimbal ring supports the free gyro assembly and allows the free gyro assembly to spin about a roll axis to stabilize the free gyro assembly. The free gyro assembly includes the optical system for the missile's seeker or tracking device and the support structure for the optical system.

Abstract: A self-propelled remotely controlled pilot vehicle adapted for use on raiad tracks to monitor hazardous conditions and obstacles on the railroad tracks. The pilot vehicle precedes a train along the railroad tracks at a distance which will allow the train to come to a complete stop in the event the pilot vehicle encounters a hazardous condition on the track. The pilot vehicle is equipped with a sensor array which measures a variety of different parameters such as the presence of noxious gases, moisture in the atmosphere, breakage in one or both rails of the track and orientation with respect to the force of gravity as well as the yaw, pitch and roll attitude of the tracks upon which the pilot vehicle is riding. The pilot vehicle is also equipped with a television camera which provides a visual image of the railroad track ahead of the pilot vehicle to the engineer of the train. An infrared camera which is mounted on the front of the pilot vehicle generates an infrared image of the tracks.

Abstract: A mobile safety structure with separate compartments for containment and dling of hazardous materials which includes a roof assembly, a base assembly having a containment pan, right side and left side walls and front and rear walls with the front and right side walls having at least one door allowing for access to the interior of the structure. A removable grating is also included in the mobile safety structure which rest atop the base assembly. The removable grating allows the user of the structure to remove hazardous materials from the containment pan by use of a pump, and to visually inspect the containment pan for hazardous materials. There is positioned within the structure four upstanding interior walls which extend from the roof assembly through the floor to a bottom plate of the base assembly to form five separate compartments and associated containment pans within the mobile safety structure's interior. Each interior wall has a fire proof door which allows access between adjacent compartments.

Abstract: A secure computer network switch, wherein a network switch is enclosed in a material which not only reflects electromagnetic waves but also absorbs them. This arrangement keeps all network signals confined to the switch enclosure and prevents electromagnetic radiation from the network cable connections. This allows a single computer to have access to multiple networks without vulnerability to theft or unauthorized disclosure of data between the networks.

Abstract: A charging/discharging apparatus uses constant charging current and constant discharging current to reduce the possibility of building memory in the cells of a battery. Memory reduces battery capacity and eventual failure will result since the cells will refuse to take any charge. A charger circuit includes a current source receiving supply voltage to couple constant charging current to the battery and an amplifier is coupled to receive reference voltage from a source and feedback voltage from the battery to connect supply voltage to the current source when the reference voltage is greater than the feedback voltage. A discharger circuit utilizes a current sink receiving supply voltage to couple constant discharging current to the battery. An amplifier receives reference voltage from a source and feedback voltage from the battery to connect supply voltage to the current sink when the reference voltage is less than the feedback voltage.

Abstract: A miss distance indicator data processing and recording apparatus compris an antenna which receives an RF missile telemetry signal from a missile attempting to intercept a target and a translated RF missile telemetry signal from an AN/DRQ-4 miss distance indicator which is on board the target. A first telemetry receiver filters, amplifies and down converts the RF missile telemetry signal to a first predetection carrier signal, and a second telemetry receiver filters, amplifies and down converts the translated RF missile telemetry signal to a second predetection carrier signal. The first and second predetection carrier signals are then supplied to an analog magnetic tape recorder which records the signals. The first and second predetection carrier signals are also supplied to a double balanced mixer which is connected to a frequency analyzer.

Abstract: This invention involves an improved technique for the modulation of waste in an actively controlled compact waste incinerator afterburner. This improved technique utilizes acoustic driving to affect indirect modulation of waste flow velocities. The waste surrogate gases are modulated indirectly by periodic entrainment created by the roll-up of the main air vortex as well as indirect acoustic excitation of secondary air injection. One of the main advantages of this new configuration is the acoustic drivers used to phase inject the waste into the vortex for proper combustion are not in direct contact with the hot waste and therefore can be less expensive and more durable over the long term.

Abstract: A leak detector and shut-off apparatus shuts off hydraulic fluid downstream o prevent the hazards attendant hydraulic failure such as loss of fluid and fire. A first sensor is coupled to a supply line for hydraulic fluid to produce pressure differential force F.sub.s, which is representative of the flow of hydraulic fluid. A second sensor is coupled to a return line for hydraulic fluid to produce pressure differential force F.sub.r that is representative of flow of hydraulic fluid. A compensator creates representation F.sub.c of the rate of accumulation of hydraulic fluid in the hydraulic circuit downstream of the device and a safety margin. A shutoff mechanism is connected to the first and second sensors and the compensator to shut off the supply and return lines when F.sub.s is greater than the sum of F.sub.r and F.sub.c.

Abstract: An apparatus for reducing the vulnerability to unauthorized entry past a r comprising a first rectangular shaped plate attached to the outside of the door, the first plate having a second or strike plate positioned to extend into the door frame to resist separation of the door and its door frame when the door is closed. The apparatus further comprises a third rectangular shaped plate attached to the inside of the door and communicating with the first plate. A portion of the first plate extends beyond the door covering a portion of the door frame. The apparatus is adapted to receive a door locking mechanism having a dead bolt. When the door is in a closed position and the dead bolt is activated, the dead bolt is extended through a pair of apertures in the door frame. Extending the dead bolt through the pair of apertures in the door frame reinforces the door and door frame and places all applied loads during forced entry directly to the dead bolt via double shear.

Abstract: In depositing an adhering, continuous, polycrystalline diamond film on a substrate by forming a refractory nitride interlayer on the substrate and depositing diamond on the interlayer in a vacuum chamber containing a microwave activated mixture of hydrogen and a gas including carbon, the crystal orientation of the deposited diamond, <111> or <100>, is selected by controlling the pressure in the chamber. Preferably, relatively higher microwave power is utilized at higher pressures.

Abstract: A thin film of ignition inhibitor is applied uniformly to a rocket propelt grain which may be large and have a complex shape. The film is applied by condensation and polymerization of a vaporized monomer to which the grain is subjected. The monomer is prepared by thermally cracking the dimer of paraxylylene or a halogenated paraxylylene derivative.

Abstract: A transducer is deposited on each fiber of an optical fiber scene projector to convert portions of electromagnetic radiation to emitted radiation, h as IR. The transducer, is adaptable to large arrays of optical fibers and can be fabricated using mature conventional processes, such as vapor deposition, for example. The components of the transducer can be tailored to handle different incident radiation and produce desired emitted radiation. Dielectric layers having thicknesses equal to odd-numbered multiples of quarter wavelengths of the electromagnetic radiation receive the electromagnetic radiation and a reflector adjacent to the layers reflects unabsorbed portions of radiation back through the layers. An absorber layer interposed between adjacent dielectric layers absorbs the received and the reflected radiation so as to convert the absorbed radiation into heat energy.