Abstract: A method and information processing system transmit emergency alert system messages to wireless devices. An EAS alert message (302) is transmitted to at least one wireless device (106) using one or more access channels (306) associated with a coverage area. An acknowledgement message (200) is received from the wireless device (106). The acknowledgement message (200) includes at least one of a location associated with the wireless device (106) and an identifier associated with each access channel over which the wireless device (106) received the EAS alert message (302). At least one of a first set of information indicating locations within the coverage area that have successfully received the EAS alert message (302) and a second set of information indicating which access channels have successfully transmitted the EAS alert message (302) to the wireless devices (106) within the coverage area are stored based on receiving the acknowledgement message.

Abstract: This invention relates to a polymer concrete composition; to methods for lining pipes and for filling girthweld concrete cutbacks using the composition, and to a reusable mold for preparing filled girthweld concrete cutbacks. The polymer concrete composition contains no transition metal compounds and comprises a vinyl ester resin or an unsaturated polyester resin, a free radical initiator; a transition metal free, an accelerator which does not contain a transition metal.The reusable mold comprises a separable sheath (10) having a means (21) for introducing a filler composition to the girthweld concrete cutback (40). The sheath is capable of conforming generally to the shape of the coated pipe (1, 2) or other coated conduit and circumscribing the entire circumference or perimeter of at least a portion of the pipe or other conduit. The mold further comprises a closure means (20) mounted on the separable sheath.

Abstract: Visible and ultraviolet lasers is based on excimer transitions in the diatomic homonuclear halogen molecules. Electron beam pumping of argon and hydrogen iodide gas mixtures produces a strong green emission in I.sub.2 centered at 505 nm and a full width of half maximum (FWHM) of the gain spectrum of approximately 15 nm. The transition for the green I.sub.2 band is bound-to-free, so a laser on this transition is continuously tunable. The result is a room temperature excimer laser that is potentially tunable over a region of 150 .ANG. in the blue-green.

Abstract: A method for detecting faults in a synthetic electro-mechanical cable uses n insulated conductor dipped in a slurry of graphite prior to being overbraided with the synthetic reinforcement material. Enough graphite oozes through the braid to insure a conductive path through the multiple layers of cable on a metal take-up reel to megger the finished cable between the conductor and the metal reel.

Abstract: A fault tree data array converts the logic of a fault tree into software by sing a data base technique. Each array element of a data array contains a decision or termination of the fault tree, and a relative exponential addressing expression provides the data elements with a unique position in the array. The next position in the data array to be examined is calculated by the relative exponential addressing expressions. For unsymmetrical fault trees on additional data array is generated to provide a sequential list of tests to be examined until a fault is found. Then the relative exponential addressing technique is used. The result is a more compact method of storing data in computer memory, hence providing an efficient method for implementing fault trees into software.

Abstract: A thermal microstructure measurement system (TMMS) operates autonomously h its own internal power supply and telemeters data to a platform. A thermal array is mounted on a cross-braced frame designed to orient itself normal to existing currents with fixed sensor positioning bars protruding from the cross bars. A plurality of matched thermistors, conductivity probes and inclinometers are mounted on the frame. A compass and pressure transducer are contained in an electronics package suspended below the array. The array is deployed on a taut mooring below a subsurface float. Data are digitized, transmitted via cable to a surface buoy and then telemetered to the platform where the data is processed via a computer, recorded and/or displayed. The platform computer also sends commands to the array via telemetry.

Abstract: A precision fathometer interface adaptor for interfacing a shallow and a p water sonar with a computer operated survey system for a 20-line to 16-line data selector is coupled to a multiplexed 16-line data bus. Two sources of bathymertic data are input to the data bus. For 5-bit BCD the four MSD or LSD are selected for input. The output is selected by three operational modes: Select Source 1, Select Source 2 or Automatic. The Automatic mode selects the bathymetric data output for the computer according to the water depth. An externally activated timer generates time/event markers for external devices.

Abstract: A split-BUS multiprocessor system for acquiring data and outputting the d in digital computer format has an electronic front end that receives data from one or more sensors and converts the data to digital form. An acquisition microprocessor operating in a polling mode acquires the digital data and stores it in a data memory. An output microprocessor operating in an interrupt mode extracts the data from the data memory and routes it to appropriate display and recording devices in digital computer format.

Abstract: Loop radiating elements for microwave frequencies which result in balanced ower division at the feed points and equi-phase currents in the radiating segments are in the form of an Alford loop design having a "kink" in the stripline path on the side of a printed circuit board opposite the cross-over to restore equal path lengths on both sides of a central feed terminal. Alternatively, the radiating segments of a loop may be in the form of end-loaded bent dipoles which are dual-fed on diametrically opposite points of the loop with equi-phase and amplitude signal. The result is loop radiating elements which have an axial null with a symmetrical doughnut radiating pattern.

Abstract: A free nuclear precession gradiometer uses a fluid sample surrounded by a il the fluid sample containing one or more nuclear species which display a magnetic moment. Current in the coil polarizes the nucleii, which when the current is abruptly terminated precess coherently about the earth's magnetic field. The exact frequency generated is a precise measure of the absolute value of the earth's magnetic field. The signal is in the form of a damped sinusoid with the rate of decay being a function of gradients in the ambient magnetic field. Two vector magnetometers are mounted rigidly on the sensor at the right angles to each other and to the earth's magnetic field. A servo system continuously orients the sensor in a two-axis gimbal system to reduce the output of the vector magnetometers to zero. The instrument is polarized, a counter is triggered to make the frequency measurement, and the signal is analyzed by determining the average amplitude of the signal over a precise interval of time.

Abstract: An adapter for existing tow bars or spotting dollies to tow aircraft having on-conventional landing gears has a vertical member which is dimensioned to fit into a socket mounted in the bottom of the aircraft in the vicinity of the nose or tail. A structural cross member, integral with the bottom of the vertical member, has holes in the ends which receive the axle pins located at the ends of the tow bar arms or the lifting arms of the spotting dolly.

Abstract: Provides a suspension mount for a gyro sensor block suspension eliminates ther cross-talk in a gyro triad having a set of common gyros with the same dither tuned suspension. A sensor block has three gyro mount locations situated such that, when attached, the gyro triad is mutually orthonogal to each other. Two of the gyro mount locations have a spring suspension, each of a different stiffness, formed by joining a central hub, to which the gyro is attached, with the sensor block mass via a plurality of spokes to form a torsional spring about the gyro dither axis.

Abstract: The invention is a method for interconnecting close lead center integrated ircuit package to boards by forming the leads as follows: (1) bonding the lead frame material to a thin insulating film, and the (2) forming the leads. Next, the film base is removed selectively where connections to the package and board will be made. The lead material is then plated and formed to provide stress relief in the package-to-board interconnect. The lead frame is then attached to the package and board.

Abstract: A high-speed bipolar logarithmic analog-to-digital (A/D) converter outputs signed binary number proportional to the logarithm of a bipolar analog input signal. A log converter is followed by a level shifting amplifier to center the output of the log converter on a temperature compensating reference. The reference voltage from the temperature compensating reference is used by a linear A/D converter to set the end points of the converter range. A code converter follows the A/D converter if a uniform absolute value coding is desired. Limiting the number of least significant bits (LSB) used to those representing the range of usable converter operation completes the device.

Abstract: A computational aid device for Ekelund range determinations comprising a e member adapted to be placed over a bearing/time plot and including two leg members to be aligned with intersecting bearing rate lines faired through the plot, and a range scale positionable with respect to the base and the leg members to provide direct readings of range and of probable limits of range error.

Abstract: In a process for producing polyurethane foam, which process comprises reacting in one step a polyether polyol and a crosslinking agent with a polyisocyanate in the presence of a catalyst and a blowing agent, the improvement of employing as at least a major proportion of the crosslinking agent a soluble amine salt obtained by reacting a cycloaliphatic polyamine having at least two primary amine groups with approximately the stoichiometric amount of a carboxylic acid.

Abstract: Simulation of sonar reverberation signals is accomplished from square pul the timing and duration of which are computer determined by known principles by processing the pulses through novel shaper means including diode controlled charging and discharging of a capacitor through different selected resistances to provide appropriate ascent and descent curves to the pulses. The shaped pulses are then used to pulse modulate a doppler-shifted carrier signal which is generated by a voltage controlled oscillator responsive to control signals which are functions of ship's speed, transmission angle and the like. The resulting pulse modulated doppler-shifted carrier is then attentuated to provide the desired simulated reverberation signal components.