Abstract: A layer of indium is deposited as small islands on a photosensitive material. The islands and the material not covered by the islands are bombarded with ions to cause sputtering of the islands and the material. When the islands have been sputtered away, the material has a surface consisting of cones and pyramids. Such a surface is more efficient at absorbing photons than is a smooth surface.

Abstract: A plurality of fine leak test chambers for fast individual testing of herically plated microelectronic devices. Each microcircuit component, having already been subjected to a controlled environment of 5 percent helium and 95 percent nitrogen and then assembled, is placed in the chambers and sealed therein. The chambers are evacuated and helium flow rate (if present) is measured by a spectrometer.

Abstract: 1. An ordnance fuze adapted to function at a predetermined time interval in dvance of predicted missile-target intercept, said fuze comprising: means for sensing missile-to-target distance; means for initiating the generation of a first waveform voltage when the missile reaches a first predetermined distance from the target; means for initiating the generation of a second waveform voltage when the missile reaches a second and shorter predetermined distance from the target; comparator means for comparing two voltages and producing a comparator output signal when the two voltages being compared become equal; a source of constant direct-current offset voltage interposed between one of said first and second waveform voltages and said comparator means; means for applying the other of said first and second waveform voltages to said comparator means; and means for utilizing said output signal from said comparator means to function the fuze.

Abstract: An electro-optical system for determining the polarization state of optical pulses of nanosecond durations such as produced by lasers. This is achieved by using a six element optical polarizer assembly positioned in front of a six element optical detector assembly. The respective outputs of the six detectors are fed in predetermined arrangement to a plurality of operational amplifiers which are adapted to provide the sum/difference of the detector outputs for providing the Stokes parameters of an optical pulse incident thereto.

Abstract: 10. A vehicle identifying circuit comprising: means for detecting seismic brations created by passing vehicles and converting them into electrical impulses; frequency-sensing circuit means coupled to said detecting means for producing electrical signals in accordance with the frequency characteristics of said impulses, said frequency-sensing circuit means comprising an amplifier, a clipper circuit, a differentiator circuit, a rectifier and an integrator coupled in sequence to produce said electrical signals; and vehicle discriminating circuit means coupled to said frequency-sensing means to convert said signals into output pulses having voltage levels indicative of the character of the suspension system of the passing vehicle.

Abstract: An apparatus and method for the recovery of small plastic tissue sections described. A container having parallel sides is rotatably supported on its ends. Slides are placed in the container at an angle. The container is filled with a liquid and the histologic specimens are floated on the liquid within the receptacle. The container is then tilted so that the slides are horizontal and the sections are floating over the slides. A valve allows release of the liquid from the container into a trough. When the water level falls just below the level of the slides the valve is closed and the slides are removed from further processing.

Abstract: A method and apparatus for determining anomalies in the frequency- or admittance-temperature characteristic of a piezoelectric crystal resonator by inserting a variable capacitance network in series with the crystal and electronically sweeping the value of the capacitance network by a control voltage applied thereto while the temperature remains constant and noting any abrupt change in the resonance frequency characteristic.

Abstract: A heterodyne optical correlator allows a correlation function to be computed for plural portions of a stereo pair of transparencies which is normalized to thus reduce the possibility of false correlation peaks. To obtain the correlation function, a pair of stereo transparencies are illuminated by an intense monochromatic light source producing an image at a common image plane in which a detector array is located. The relative path length, between source and transparencies, is periodically modulated producing at plural locations of the detector array plural alternating current signals representing the correlation between the amplitude transmittances at various corresponding locations on the transparencies for a given relative displacement between the transparencies. To normalize this correlation coefficient a second signal is produced by illuminating only one transparency and a corresponding third signal is produced by illuminating only the other transparency.

Abstract: A system for safely simulating artillery delivered flare illumination over roops engaged in nighttime tactical training exercises, utilizes a lifting device for carrying a tethered electrically initiated, gravity released flare dispenser system to provide illumination over a target area while substantially reducing the hazard to personnel of flare debris fallout and malfunction danger to the lifting device. A tubularly shaped flare dispenser housing member supports a plurality of reloadable cylindrically shaped parachute flare assemblies. An electrically operated parachute flare initiator is utilized to simultaneously ignite and drop-release one or more combustible case flares by severing a burn-through cord retaining member.

Abstract: The use of a class or compounds known as amine-boranes and their derivati in solid propellants to produce or generate hydrogen or deuterium upon combustion.

Abstract: An interceptor missile has a single simbal system mounted in its interior. he single gimbal system positions a directional warhead carried by the missile to provide the maximum destructive effect upon detonation to an air supported target.

Abstract: A catalyst bed containing alumina pellets on which an active catalyst metal selected from iridium, nickel, niobium, and molybdenium has been deposited is employed to decompose a compound selected from deuterohydrazine, deuteroammonia, hydrazine, and ammonia to yield ammonia free deuterium and nitrogen or hydrogen and nitrogen at a temperature required for immediate use in a DF or HF laser which uses F atoms as the fuel. The decomposition temperature of the catalyst bed is maintained by a hypergolic reaction produced from reacting a fuel selected from the group consisting of hydrazine, methylhydrazine, 1,2-dimethylhydrazine, and blends of the same with an oxidizer selected from the group consisting of inhibited red fuming nitric acid, dinitrogen tetroxide, chlorine trifluoride, and chlorine pentafluoride. A laser employing ammonia free decomposition products of hydrazine and ammonia produced at a temperature between about 500.degree. C. and 900.degree. C. operates at a higher power output. When NH.sub.

Abstract: A hypervelocity rocket system with velocity amplifier including a launch e with a projectile mounted therein by sabot means and a rocket motor with an energy absorber at one end and mounted in the launch tube for impacting the projectile and causing velocity amplification of the projectile through momentum transfer as it is propelled from the launch tube.

Abstract: A method is disclosed for pretreating graphite fibers and woven graphite preforms so that they may be wetted and infiltrated by molten metals such as aluminum and alloys thereof. Pretreatment includes immersing graphite fibers or preforms in a bath of liquid NaK alloy at room temperature. The pretreatment allows a lower temperature and shorter immersion time than prior art processes and permits improved wetting and infiltration by the molten metal constituting the matrix of a graphite fiber reinforced metal composite.

Abstract: A process of using a two-phase gas or liquid filter and thin layer chromaraphy member having a filter portion and a chromatography portion. The sample is collected and analyzed on the same member. A developing solvent of substantially acrylonitrile-benzene-petroleum ether is used to allow the sample to chromatograph on the chromatography portion of the member.

Abstract: A helmet capable of providing head protection and of carrying various accories. The helmet includes a form-fit inner liner combined with a transparent mask, and an outer shell. The outer shell has a mount by which a display device may be carried. The display device has a flanged ocular end which snaps into a groove formed in the mask. The display device is carried on the mounts by a swivel-mount quick-disconnector. The outer shell may also carry such things as a visor and a radio microphone. The inner liner may carry earphones and may be adapted to connect to a gas mask.

Abstract: This device uses an oxide-metal matrix material to enable the integration either constant or pulsed image readout without the use of electron scanning. It takes advantage of a new materials's ability to serve as both a field effect emitter and a matrix channel for the emitted electrons to enable improved resolution.

Abstract: An electrically-controlled fuel injector comprising a balanced pressure sl valve that alternately connects an injector plunger control chamber to fuel supply pressure or drain pressure, thereby putting the injector plunger in the closed mode or the injection mode. Fuel pressure is utilized so that the spool valve can be operated (moved) by a relatively small size solenoid. This injector is particularly designed for use in electronic fuel injection systems.

Abstract: The invention comprises the closer positioning of a conventional telescopic ens, i.e., afocal lens, to a conventional optical scanner in such a combination as to minimize the required scanner mirror size and weight thereby improving scan efficiency, while also reducing physical size and thus the power requirement for driving the scanner mirror. The exit pupil of the telescopic lens is moved to a position close to the center of scanner wheel so that the incoming ray bundle follows the facets of the scanner mirror as it moves through a detector means field-of-view.

Abstract: An optical detector, being operated in a non-linear portion of its response urve, is used as an electronic heterodyning element for two applied frequencies. They may be applied with two modulated light sources, or one source and an alternating current bias component to provide a preselected sum or difference output signal for selectable input frequencies allowing optical tracking of a target.