Abstract: A probe device for in-situ detection of contaminants such as petroleum prcts in a subsurface media such as soil. The device comprises an elongated probe housing which is driven into the media. An ultraviolet lamp located in the housing provides excitation energy which is reflected through a UV transparent window in the housing to the media by at least one reflecting element in the housing. The reflecting element allows longitudinal offset of the lamp from the window providing space for high intensity UV lamps. A radiation receiver receives fluorescent radiation emitted from contaminants in the media transmitted through the window and provides a signal for analysis equipment on the surface. A concentrating reflector between the lamp and the housing and a focusing lens between the lamp and the reflecting element collect and focus excitation energy from the lamp.

Abstract: A stress and motion gauge formed in a unitary housing has a free field sts gauge and a velocity gauge formed in the housing in proximate side by side arrangement. The stress and velocity gauge of the invention measures, in a single package, both normal stress and material velocity at essentially the same location in a material.

Abstract: Acoustic signals and hydraulic pressure variations which influence fish bvior in bodies of water are measured and recorded by apparatus simulating a fish immersed in water, fitted with piezoelectric transducers and connected by wiring to remote amplifying and recording means. Such data are correlated with fish behavior for the purpose of developing methods of diverting fish from such areas of danger as the intake piping of hydroelectric power generating turbines and pumping stations.

Abstract: A device for measuring air flow in a conduit is characterized by a flow directing shroud mounted within the conduit and having inlet and outlet portions defining a circular opening through which the air flow is directed. A turbine-type anemometer is positioned within the circular opening such that substantially all air flow within the conduit is directed through the turbine blades, thereby enabling the average flow velocity in the conduit to be determined with a single measurement.

Abstract: An apparatus for homogenizing plastic explosive material comprises a frame aving a base and spaced first and second supports extending perpendicularly therefrom in parallel. First and second spaced parallel generally cylindrical rolls are provided. Each roll is journaled at opposite end portions thereof to the supports. Each roll has an uninterrupted peripheral surface portion for engagement with the plastic explosive material. A crank is operably associated with one of the rolls at a first end thereof for rotating the roll. Gears meshingly interconnect the rolls at a second end thereof so that rotation of the one roll causes associated rotation of the other roll. Plastics explosive material is caused to be drawn between the rolls by their rotation so as to be homogenized.

Abstract: Disclosed is a device for measuring lateral deformation in an material spmen which includes a generally ring shaped frame member displaced generally perpendicularly to the object being measured. The frame member itself comprises a first and a second generally arc shaped element which abut end to end. At least one spring arm member is fixed at one end on a mounting projection on the first arc shaped element and its movable end abuts a spring receiving projection from the second generally arc shaped element. Strain gauges are fixed to the spring arm member to detect changes in the flexture of the spring arm member resulting from relative movement of the two arc shaped elements which results from lateral deformation of the material specimen. A linear variable differential transformer having a lateral projection is also mounted on one of the arc shaped elements.

Abstract: A seal for communicating high vacuum onto rotating machinery such as a ceifuge. The seal comprises an outer pipe defining a volume to be evacuated, an inner pipe connected on one end to a vacuum source with the other end disposed within an end of the outer pipe such that an annular space is defined between the inner pipe and the outer pipe. Fluid is disposed in at least a portion of the annular space. The fluid is also disposed in a reservoir provided with cooling coils which lower the temperature of the fluid and thereby lower the vapor pressure of the fluid. The lower the vapor pressure of the fluid, the higher the level of vacuum which can be produced and transmitted.

Abstract: An outdoor illumination system having a dimmed and bright mode and is a moprocessor-based, dimming photocontrol unit for reducing the energy consumed by single, outdoor high intensity discharge light fixtures by combining a dimming and photocontrol circuit into one unit which plugs directly into the existing photocontrol jack located on most outdoor high intensity discharge fixtures.

Abstract: Disclosed is a particle velocity gauge for measuring long term (over one lisecond duration) particle velocities in solids which are subjected to high-powered sources, such as high-explosive detonations. The gauge consists of a protective canister, external flexible cable-protection system, and rigid internal strain-isolation system. The protective canister is disc-shaped and consists of a circular bottom section with central cavity, and a removable cover with o-ring seal. The strain-isolation system consists of a rigid mounting plate atop a TEFLON bearing, and is affixed to the bottom of the central cavity. A commercial accelerometer is mounted on the rigid mounting-plate to monitor the acceleration of the canister.

Abstract: A river ice motion detector system for detecting ice run conditions in or to warn communities downstream that flooding from ice jams is possible, comprises a voltage source, a multi-meter, a detector unit and a plurality of sensor loops, all having communication with each other. The voltage source provides an input signal to the detector unit and then to the sensor loops. The sensor loops provides a second signal back to the multi-meter in response to the input signal. The detector unit has a plurality of resistors and a plurality of switches, the values of the resistors determined providing large step differences, allowing the detector unit to determine which of the sensor loops is broken indicating a possible ice run. The switches are normally closed, providing a test for the system when the switches are deliberately opened.

Abstract: The invention provides a method and apparatus for determining the precise coordinate of a remote roving on-the-fly signal receiver with respect to a reference signal receiver. The reference signal receiver is usually fixed to the Earth's surface but the instant invention's method allows for movement of the reference signal receiver without performance degradation. The reference receiver and remote roving receiver track four or more satellites so that single difference code and carrier ranges between the receivers can be formed. The method can work with just L1 signal alone, the preferred method uses at least one code range (e.g., C/A code) and two carrier ranges (e.g., L1 and L2) with full wavelength L2--squared implementation addition code ranges if available for use. This method allows for initialization of carrier integer ambiguities whether reference or remote receiver are fixed or moving relative to each other and a robust procedure for determining integer ambiguities.

Abstract: A concrete armor or erosion prevention module for the protection of river, lake, and reservoir banks, shorelines and other structures is characterized by a central elongate concrete member and two outer elongate concrete members connected on opposites sides of the central member. The outer members have parallel longitudinal axes extending normal to the longitudinal axis of the central member. These elongate members all have an octagonal cross-section and are further configured such that their cross-sectional area decreases from an intermediate portion towards opposite ends thereof. A plurality of the modules may be interlocked to form a cohesive array or barrier which protects shorelines and other structure from erosive hydrodynamic forces.

Abstract: The present invention provides a means for secondary containment of airbo releases from underground storage tanks, trenches, cribs, and vaults. Airborne releases of nuclear waste from previously operated nuclear weapons plants is a particular problem which this invention addresses. The dome structure is fabricated by large inflatable fabric forms that are insulated and hardened by specialized shotcrete processes for either spherical or elliptical type dome structure. This dome structure is designed to be reused and thus made mobile by having at least three large capacity crawler/transporters or a crane link-up and lift the dome structure for transport to a desired HTRW location. The dome structure is made of layered materials comprising a thin flexible membrane of urethane foam and conventional shotcrete placed on steel reinforcing bars.

Abstract: An improved hanging display sign comprises boxes each having transparent e panels and a slot into which panels displaying letters are inserted to display a message. The letter panels are protected from inclement weather and from tampering by vandals by the transparent face panels and by sealing strips. A cable system is used to hold the boxes in a stack, with each box closing the opening in the top of the box below it. Drawing the cables tight holds the boxes together in a stack to form a weatherproof, vandal-proof display sign.

Abstract: An overhead foxhole cover takes the form of a shallow arch. The shallow a is fabricated from a light weight material and is provided with corrugations running parallel to the plane in which the arch is formed in the cover. The arch is preferably formed in 12 gauge aluminum and is capable of withstanding the blast from an 82 mm mortar. The arch is used by first digging a two-soldier fighting position; placing retaining walls, if needed; placing the cover over the center of the fighting position; placing the bags over the cover to retail a soil cover; and placing 18 inches of soil cover over the sandbagging shallow arch.

Abstract: A speed bump for use in connection with a roadway located in a climate wh a snow plow is used to clear a roadway, the bump is made from roadway construction materials extending across each lane of a roadway, the bump having a crown of fixed width running substantially the length of the bump; the right-side of the bump having a conventional profile portion, the left-side having a tapered ramp portion having an incline equalling about ten to thirty degrees, allowing a snow plow to lift smoothly over the bump, a plurality of bumps having the same shape can be aligned to manage multiple-lane, one-way and two-way traffic.

Abstract: A composite for use on submarines and surface craft for controlling self-erated noise when listening with sonar. The composite includes two layers of PVF.sub.2 transducers separated by a layer of phase shifting or absorbing material. The inner transducer senses noise from the ship and subtracts this from the signal from the outer transducer representing noise plus the desired signal. In a second mode the sensed noise is regenerated through the outer transducer 180.degree. out of phase to cancel the noise and allow more accurate detection.

Abstract: A speed bump for use in connection with roadways located in climates where snow plow is used to clear the roadways.

Abstract: A method of containing hazardous and toxic wastes includes the steps of irporating the dried waste, in a salt form, in melted polymer, such as asphalt, and forming the waste salt and asphalt blend into aggregate pellets. The pellets are coated with a powdered coating material that is compatible with a portland cement-based mortar or other cementitious material which is used. The coated particles are mixed with mortar to form a polymer-aggregate concrete and cast into wasteforms for storage or burial. If it is desirable to produce a waste form with a continuous layer of mortar on the exterior of the concrete monolith the mold can be placed on a turntable and spun, or otherwise exposed to a centrifugal force to force the mortar to the outside of the mold. Centrifugal separation is possible because the polymer-waste mixture typically has a specific gravity near 1.5 while that of the cementitious mixture is typically greater than 2.0.

Abstract: A molding apparatus for hardening, finishing and shaping reactive cement te by utilizing electrolysis and electrophoresis. The molding apparatus confines a reactive paste in a porous mold, out of direct contact with electrodes. The electrodes are immersed in chambers filled with an electrolyte and are separated from the mold by a filter and perforated support. When a current is applied to the electrodes, the electrolyte decomposes forming a reactive solution that will harden the paste after contact. The filter on the perimeter of the mold, prevents particulates or bubbles, coming from the electrodes, from passing through to the porous mold distorting the hardening paste. In order to uniformly harden a solid or asymmetric shaped section, the movement of the reactive solution through the paste requires that a set of electrodes surrounding the solid or asymmetric section be energized, in pairs, with two electrodes on opposite sides of the configuration, constituting a pair.