| Fiber Bragg Grating Interrogation System With Adaptive Calibration |
06 OCT 1998 |
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| Authors:
Michael A. Davis; Alan D. Kersey; David G. Bellemore; DEPARTMENT OF THE NAVY WASHINGTON DC
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 | The invention pertains to a system and method for providing accurate measurements of the reflected wavelengths from multiple strings of fiber Bragg grating (FBG) elements using a single scanning optical filter and an isolated duplicate reference string of FBG elements. A reference string of FBG elements permits precise long-term wavelength determination of sensors by providing real-time adaptive calibration adjustments to correct for any nonlinearities in the response of the single ... |
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| Squirrel Cage Type Electric Motor Rotor Assembly. |
06 OCT 1998 |
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| Authors:
Chahee P. Cho; William P. Krol Jr; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The invention pertains to a squirrel cage type electric motor rotor assembly includes first and second end plates of circular configuration, rigid tubes extending from the first plate to the second plate, the tubes being closed a either end thereof to define enclosed chambers therein, and granules of magnetic material disposed in the chambers, the granules being packed therein with a density leaving them readily movable to align with magnetic ... |
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| Switching Matrix |
06 OCT 1998 |
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| Authors:
John M. Hovey; Carlyle V. Parker; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The invention pertains to a deciphering unit having input and output matrices connected to a master shift register to permit flexible access to its stages. The output matrix allows selection of four register positions in the master shift register from which data is fed to a correspondence generator where it is partially descrambled. Subsequently, the input matrix allows selection of four input register positions for the partially descrambled data, and ... |
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| Wavelength Independent Optical Probe |
06 OCT 1998 |
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| Authors:
Richard Scheps; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An optical probe for illuminating a location outside or inside a medical patient with a range of optical wavelengths appropriate to both diagnostic and surgical procedures comprises a polarization-preserving optical waveguide to conduct a polarized light beam to a polarizing beamsplitter, an optical detector to detect light deflected by the beamsplitter, a quarter-wave plate to couple the light between a non-refractive focusing element and a target, and a probe enclosure. ... |
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| Method and Apparatus of Classifying Marine Sediment |
29 SEP 1998 |
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| Authors:
Altan Turgut; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An acoustic classification system in which echoes from sediment-sediment or water-sediment interfaces are compared to model waveforms predicted by Biot's equations for a given set of acoustic material parameters. The selection of parameters are varied until it match occurs, indicating the correct parameters of the reflecting sediments. Preferably by formal search algorithms, such as simulated annealing or genetic algorithms, to increase computational efficiency. |
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| Method and Apparatus for Generating High-density Sheet Plasma Mirrors Using a Slotted-tube Cathode Configuration |
29 SEP 1998 |
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| Authors:
Joseph Mathew; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A method and apparatus for generating high-density sheet plasma mirrors having a longitudinally slotted cathode, circular in shape, having a inner cavity and a slot of a predetermined width positioned along the length of the cathode. A discharge voltage is applied to the cathode within a vacuum chamber which is backfilled with gasses like oxygen and argon, or mixtures thereof, which in cooperation with a magnetic field, which is higher ... |
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| System For Positioning Boresight Calibration Tools. |
29 SEP 1998 |
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| Authors:
William L. Farley; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A system useful in boresight calibration of a launch cell is provided. The launch cell has a central longitudinal axis coincident with a central longitudinal axis of a projectile that it would support. The launch cell terminates at either end thereof in a door where each door is provided with a hole through which the projectile can pass. The center of the hole is coincident with the central longitudinal axis ... |
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| System for Monitoring Surface Stress and Other Conditions in Structures |
29 SEP 1998 |
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| Authors:
Richard H. Nadolink; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A system for monitoring a structure is built on a printed circuit board (PCB) mounted at the surface of the structure. A piece of single crystal silicon is mounted on the PCB and is in contact with the structure. An infrared source directly illuminates the silicon while an infrared detector is focused thereon to monitor isochromatic fringe patterns projected from the silicon as a direct indication of stress at the ... |
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| Method of Protecting a Structure |
29 SEP 1998 |
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| Authors:
Philip J. Dudt; John R. Martin; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The invention is directed to a lightweight barrier and armor materials and, more particularly, to a method of using a syntactic foam for protecting a desired portion of a fixed structure (e.g., building) or movable structure (e.g., armored vehicle or ship) from ballistic impact. The method of the present invention includes the following steps: (1) providing a mold defining therein a predetermined shape or an enclosed space in a fixed ... |
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| Wideband High Isolation Circulator Network |
29 SEP 1998 |
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| Authors:
Thinh Q. Ho; Stephen M. Hart; Gregory A. Kosinovsky; Willard I. Henry; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An isolation circulator network includes three circulators and a 180 degree hybrid coupler for isolating an RF transmitter from a nearby RF receiver. The isolation circulator network comprises: a first circulator for transforming a first RF signal, RF1, into a second RF signal, RF2 and a third RF signal, RF3; a second circulator for throughputting the third RF signal; a third circulator for transforming the second RF signal into a ... |
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| Transformer Which uses Bi-Directional Synchronous Rectification to Transform the Voltage of an Input Signal Into an Output Signal Having a Different Voltage and Method for Effectuating Same |
29 SEP 1998 |
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| Authors:
Russell E. Hammond; Leopold J. Johnson; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The present invention provides a transformer which uses bi-directional synchronous rectification to transform the voltage of an input signal from one voltage level to another. The invention provides a transformer which requires less core volume, and hence mass, than conventional transformers, and includes a rectifier for transforming a first time varying input signal, such as a sinusoid or saw tooth signal, into a full-wave rectified voltage signal. A synchronous switch ... |
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| System Level Aid for Troubleshooting (SLAT) |
22 SEP 1998 |
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| Authors:
Thomas Laureanno; DEPARTMENT OF THE NAVY WASHINGTON DC
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| This invention relates generally to a method and apparatus for isolating and analyzing faults in a complex system which is represented by a network comprising a plurality of nodes interconnected by links defining the flow among nodes corresponding to flows in the complex system. The complex system is stored as a database internal to the apparatus and represents a physical system under test. The apparatus localizes faults in the system ... |
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| Explosive Compositions |
22 SEP 1998 |
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| Authors:
Jerry S. Brown; John A. Conkling; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The present invention provides a multi-component explosive composition comprising 2-ethylhexyl nitrate and a granular solid oxidizer. An optional component is a second fuel, e.g., aluminum. An optional component in the absence of the second fuel is azodicarbonamide. Methods for making the explosive are provided. |
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| Wide-Angle, Forward-Looking Bathymetric Mapping |
22 SEP 1998 |
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| Authors:
Michael R. Medeiros; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A system for generating a wide-angle, forward-looking bathymetric map of the an region ensonified by single ping. A transmitter generates a large angle transmit pulse. An array of acoustic transducer elements operates to transmit the pulse, receive acoustic return signals and convert the returns into digital acoustic data. A receiver matched filters, shades and steers the data through a series of horizontal angles. For each horizontal angle steered to, the ... |
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| Optically Based Position Location System for an Autonomous Guided Vehicle |
22 SEP 1998 |
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| Authors:
Hobart R. Everett Jr.; Gary A. Gilbreath; Rebecca S. Inderieden; Theresa T. Tran; John M. Holland; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An optically based position location system, comprises multiple reflectors positioned at known locations in an environment; a vehicle for traveling along a path in the environment; a first sensor for generating and detecting a collimated and polarized first light signal reflected from one of the reflectors, and for generating a first output signal in response to detecting the first light signal; a second sensor for generating and detecting a collimated ... |
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| Marine Tactical Air Command Center Handbook |
21 SEP 1998 |
248 pages |
| Authors:
DEPARTMENT OF THE NAVY WASHINGTON DC
|
 | The Marine air command and control system (MACCS) provides the Marine aviation combat element (ACE) commander with the means to exercise command and control of organic and nonorganic aviation assets necessary to support Marine air-ground task force (MAGTF) operations. Marine Corps Warfighting Publication (MCWP) 3-25, Control of Aircraft and Missiles, addresses basic Marine Corps air command and control philosophy. MCWP 3-25.3, Marine Air Command and Control System Handbook, addresses basic ... |
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| Fluoroaliphatic Cyanate Resins for Low Dielectric Applications |
15 SEP 1998 |
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| Authors:
Arthur W. Snow; Leonard J. Buckley; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The present invention is a cyanate resin monomer having the formula: NCO-CH2-(CF2)n-CH2-OCN, where n is an even integer from 6 to 10, inclusive. Another aspect of the invention is an essentially pure cyanate resin monomer having the formula: NCO-CH2-(CF2)n-CH2-OCN where n=3, 4, 6, 8, or 10. Another aspect of the invention is a prepolymer made by the process of heating a monomer of the invention to a conversion below the ... |
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| Multi-Layer Acoustically Transparent Sonar Array |
15 SEP 1998 |
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| Authors:
Fred Nussbaum; Gerald T. Stevens; Maurice J. Griffin; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A sonar array uses multiple acoustically transparent layers. One layer is a planar array of acoustic sensors that is substantially acoustically transparent. Another layer is an acoustically transparent wiring assembly that provides electrical connection to each acoustic sensor. A third acoustically transparent layer is a planar array of signal processing circuits coupled to the wiring assembly for processing electrical signals generated by the acoustic sensors. Each signal processing circuit resides ... |
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| Thermoset Polymers from Inorganic Arylacetylenic Monomers |
15 SEP 1998 |
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| Authors:
Daniel Bucca; Teddy M. Keller; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The present invention is a thermoset having the repeating unit: R'- (Ae' -Ar'-M- Ar"-Ae")-R" where R' and R" are independently selected from the group consisting of hydrogen, unsubstituted alkyl groups, substituted alkyl groups, unsubstituted aryl groups, and substituted aryl eroups, where Ae' and Ae" are independently selected groups with one or more unsaturated carbon-carbon bond and at least two crosslinking moieties, where Ar' and Ar" are independently selected substituted or ... |
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| Chemical and Biological Sensor Using an Ultra-Sensitive Force Transducer |
15 SEP 1998 |
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| Authors:
Gil U. Lee; David A. Kidwell; Richard J. Colton; DEPARTMENT OF THE NAVY WASHINGTON DC
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| The present invention is a method and apparatus for detecting a target species. The target molecule may be in liquid phase (in solution) or (for some embodiments of the invention) in vapor phase. A sensor according to the present invention monitors whether a target species has selectively bound to groups on the cantilever surface by monitoring the displacement of the cantilever, and hence the force acting on the cantilever. This ... |
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| Submersible Vehicle Hull Portion Having Integrally Formed Fluid Tank |
15 SEP 1998 |
|
| Authors:
Benoit G. Gauthier; Dawn M. Vaillancourt; Stephen J. Plunkett; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A submarine hull has integrally defined fuel tankage tubes surrounding an inner skin, and a structural foam core in the interstitial annular space not occupied by the tubing. An outer skin completes the structure, both inner and outer skins are of composite construction. |
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| Laboratory Test Method to Measure Towed Array Hydrophone Response |
15 SEP 1998 |
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| Authors:
Andrew J. Hull; DEPARTMENT OF THE NAVY WASHINGTON DC
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| A method for determining whether a hydrophone being tested is being properly responding to a pressure field is described. The method comprises the steps of providing a shell filled with a liquid and having impedance heads attached to a first end and a second end of the shell and a number of pressure sensors or hydrophones positioned between the first and second ends within the liquid filled shell; developing a ... |
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| Method for Remotely Determining Sea Surface Roughness and Wind Speed at a Water Surface. |
15 SEP 1998 |
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| Authors:
Kenneth D. Anderson; DEPARTMENT OF THE NAVY WASHINGTON DC
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| Transmitted signals are used to remotely assess sea surface roughness and hence wind speed at a water surface. A signal is transmitted from a signal source as it moves either through air or space. A land- or sea-based antenna receives the signal directly from the signal source and indirectly from the signal source by way of reflection of the signal from the surface being examined. The sum of the directly ... |
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| Apparatus and Method for Generating Short Pulses for NMR and NQR Processing |
08 SEP 1998 |
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| Authors:
Joel B. Miller; Allen N. Garroway; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An apparatus using nuclear magnetic or quadrupole resonance to detect selected nuclei in a specimen (e.g., specimens containing a class of explosives or narcotics). The apparatus includes a pulsing unit to generate an RF pulse or a train of pseudo-random RF pulses used in stochastic NQR. Each of the pulses has an RF signal reaching a full amplitude within a quarter-cycle (substantially no pulse rise delay) and having_ a recovery ... |
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| Echo Detection Doppler Gate |
08 SEP 1998 |
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| Authors:
Thomas J. Pelick; Carroll L. Key Jr; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| An automatic control system is discloser herewith which causes the notch filter incorporated in a sonar system or any other appropriate utilization apparatus to be electrically by-passed in response to a predetermined minimum doppler present within a data signal being filtered thereby. It includes such uniquely combined elements as envelope detectors, rate-of-decay and rate-of-rise amplifiers, bistable multivibrators, an inverter, and an AND gate for adjusting the position of a selector ... |
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| Optical Limiter Structure and Method |
08 SEP 1998 |
|
| Authors:
Arthur W. Snow; James S. Shirk; Filbert J. Bartoli Jr.; James R. Lindle; Michael E. Boyle; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| An optical limiter structure which includes a limiter material preferably dissolved in a host. The limiter material is selected from substituted and unsubstituted phthalocyanines, naphthalocyanines, porphyrins, salts of these materials and mixtures thereof, whereas the host is selected from any material which can dissolve the limiter material to at least the extent of 0.1% by weight. |
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| Hydrodynamic Dampening System for the Precise Measurement of Dynamic Sediment Pore Water Pressure |
08 SEP 1998 |
|
| Authors:
Richard H. Bennett; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A multi-sensor piezometer is disclosed that includes a shaft and an upper chamber. The shaft houses a plurality of porous stones that operatively cooperate with the positive input of respective differential pressure transducers. The multi-sensor piezometer further includes a hydraulic dampening system which eliminates the effect of high frequency surface waves on the precision of the multi-sensor piezometer to measure pore pressures in marine sediments. |
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| Method of Forming an Interband Lateral Resonant Tunneling Transistor |
08 SEP 1998 |
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| Authors:
Jerry R. Meyer; Craig A. Hoffman; Filbert J. Bartoli Jr; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| This invention describes a nanometer scale interband lateral resonant tunneling transistor, and the method for producing the same, with lateral geometry, good fanout properties and suitable for incorporation into large-scale integrated circuits. The transistor is of a single gate design and operation is based on resonant tunneling processes in narrow-gap nanostructures which are highly responsive to quantum phenomena. Such quantum-effect devices can have very high density, operate at much higher ... |
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| Optical Fibers With High Acceleration Sensitivity and Low Pressure Sensitivity |
08 SEP 1998 |
|
| Authors:
Nicholas Lagakos; Joseph A. Bucaro; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| An optical fiber which includes a light transmitting center portion, a protecting layer and a stress preventing layer. The protecting layer concentrically surrounds the center portion, and reduces the effect of environmental factors on the center portion. The stress preventing layer concentrically surrounds the center portion and is positioned between the protecting layer and the center portion. The stress preventing layer has a Young's Modulus substantially lower than the Young's ... |
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| Secure Communication System, |
08 SEP 1998 |
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| Authors:
Daniel E. Andrews Jr.; William E. Klund; Robert D. Isaak; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| The invention pertains to a secure communication system comprising: a first cyclical pseudo-random noise generator comprising determinable variable starting point means and an output; transmitting means for transmitting said pseudo-random noise generator output; receiving means for receiving said transmitting means transmissions, said receiving means having an output; recycling storage means for storing said receiving means output; a second cyclical pseudo-random noise generator identical to said first pseudo-random noise generator having ... |
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| Low Cost Environmentally Friendly Flare |
01 SEP 1998 |
|
| Authors:
Donald E. LaGrange; Dennis D. Deckard; Douglas A. Schulte; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Aerial training flare or flare simulator comprising a polymeric case, a biodegradable polymeric candle housing, and a candle comprising a pyrotechnic illuminant and an environmentally friendly, fast-burning ignition composition. An expulsion cartridge ejects the candle and the candle housing while the case is retained on the launching aircraft. The only major component of the flare which falls to earth is the partially melted candle housing, which is biodegradable and thus ... |
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| Electric Field Control of Epiletiform Activity |
01 SEP 1998 |
|
| Authors:
Mark L. Spano; Steven J. Schiff; Bruce J. Gluckman; William L. Ditto; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A DC electric field is applied to brain tissue in parallel alignment with neurons thereof during periods of brief duration while the tissue is undergoing epileptic activity. The electric field is controllably changed in polarity and magnitude to modify such epileptic activity based on data obtained by recording such activity through electrodes that are isopotentially aligned within the electric field imposed on a slice of the brain tissue. |
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| Spinning Filter Separation System for Oil Spill Clean-Up Operation |
01 SEP 1998 |
|
| Authors:
John Wehrle; Eugene C. Fischer; William P. Kenney; Joseph F. Korczynski; Thomas D. Gracik; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Oil spill polluted water is conducted under pressure in sequence through separator devices to collect and burn a polluted water mixture having its oil concentration increased by extraction of water therefrom during axial flow through the separator devices. Such water extraction is effected by sequential radial outflow through oil flow blocking filter walls of the separator devices in response to rotation thereof. |
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| Deposition of High Quality Diamond Film on Refractory Nitride. |
01 SEP 1998 |
|
| Authors:
Mark B. Moran; Linda F. Johnson; Karl A. Klemm; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| 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 ... |
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| System for Determining Time Between Events Using a Voltage Ramp Generator |
01 SEP 1998 |
|
| Authors:
Vincent K. McDonald; Jack R. Olson; Barbara J. Sotirin; Robert B. Williams; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| The invention pertains to a system for determining the time between the receipt of two different signals, includes a voltage ramp generator which generates a time dependent voltage signal upon receipt of a timing pulse at a time T1, and provides the instantaneous value of the voltage signal when the voltage ramp generator receives an input signal having a predetermined threshold value at time T2. A data processor coupled to ... |
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| Submersible Device Launcher |
25 AUG 1998 |
|
| Authors:
Delfino D. Ferreira; Nicholas O. Venier; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A submersible device launcher includes an external cage structure including at least a base, an overhead reinforcing member and a plurality of corner posts connecting the base to the overhead reinforcing member. A launcher barrel is mounted to the external cage structure, a half-wall is mounted to and braced against the base of the external cage structure at a peripheral edge thereof, and an impulse cylinder is mounted to the ... |
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| Interband Quantum Well Cascade Laser, with a Blocking Quantum Well for Improved Quantum Efficiency |
25 AUG 1998 |
|
| Authors:
Jerry Meyer; Igor Vurgaftman; Ruan Q. Yang; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A gain region for an interband quantum well laser includes: (a) an emitter region of semiconductor material having at least one conduction subband and at least one valence subband, these subbands being spaced apart by an energy band-gap; (b) a collector region of semiconductor material having at least one conduction subband and at least one valence subband, these subbands spaced apart by an energy band-gap; (c) a type-I or type-II ... |
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| Electronic Devices With InAlAsSb/AlSb Barrier |
25 AUG 1998 |
|
| Authors:
John B. Boos; Walter Kruppa; Doewon Park; Brian R. Bennett; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| An electronic device characterized by a GaAs substrate and a base disposed on the substrate the base comprising InAs channel layer, AlSb layer above the channel layer In(x)Al(1-x)As(y)Sb(1-y) layer containing at least In, Al, and As disposed above the AlSb channel layer. InAs cap layer disposed above and in contact with the In(x)Al(1-x)As(y)Sb(1-y)layer disposed below the InAs channel layer and in contact with the substrate p(+) GaSb layer disposed within ... |
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| Suppression of Epileptiform Activity |
25 AUG 1998 |
|
| Authors:
Mark L. Spano; Steven J. Schiff; Bruce J. Gluckman; William L. Ditto; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A DC electric field is applied to brain tissue in parallel alignment with neurons thereof during periods of brief duration while the tissue is undergoing epileptic activity. The electrical field is controllably varied in magnitude to suppress such epileptic activity. |
|
| Radiation-Hardening of SOI by Ion Implantation into the Buried Oxide Layer |
18 AUG 1998 |
|
| Authors:
Harold Hughes; Patrick McMarr; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| The radiation hardness of a silicon-on-insulator structure is improved by implanting dopant ions such as Si into the buried oxide layer. The dopant ions are implanted in the buried oxide layer, near, but not at the active Si layer/buried oxide layer interface. This implantation creates electron traps/recombination centers in the buried oxide layer. |
|
| Mercury Removal Method and Apparatus |
18 AUG 1998 |
|
| Authors:
Stephen A. Ralls; William C. Roddy; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A method and apparatus to treat dental waste water has been developed in which a slurry of water and solid waste particles. including mercury-containing amalgam and soluble and suspended mercury and other heavy metals. is collected under vacuum into an main chamber. The particulate containing liquid slurry settles into a main chamber and into the central collection well of a removable filter while the vacuumed air exits the main chamber ... |
|
| Target Seeking Free Gyro. |
11 AUG 1998 |
|
| Authors:
Fay Hoban; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A free gyro for use with a missile's seeker which allows the seeker to track 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 ... |
|
| Submarine Deployed Sea-State Sensor |
11 AUG 1998 |
|
| Authors:
David H. Shonting; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A submarine deployed sea-state sensor comprises an elongated housing having a nose cone and an aft end, the housing having a forward buoyant chamber for receiving an accelerometer. Aft of the buoyant chamber, a damping assembly communication link deployment means and a lifting body are provided. Both the damping assembly and the lifting body are attached to a communication link interconnecting the accelerometer and a submerged platform so that when ... |
|
| Spinning Filter Separation System for Oil Spill Clean-Up Operation |
11 AUG 1998 |
|
| Authors:
John Wehrie; Eugene C. Fischer; William P. Kenney; Joseph F. Korczynski; Thomas D. Gracik; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Oil spill polluted water is conducted under pressure in sequence through separator devices to collect and burn a polluted water mixture having its oil concentration increased by extraction of water therefrom during axial flow through the separator devices. Such water extraction is effected by sequential radial outflow through oil flow blocking filter walls of the separator devices in response to rotation thereof. |
|
| Barge Strike Explosive Clearance System |
11 AUG 1998 |
|
| Authors:
Robert C. Woodall Jr.; Lynn Haven; Fellpe A. Garcia; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A barge strike system for clearing an obstacle-filled region of water includes a floating barge having at least one hollow region defined therein. The barge is equipped to move under its own power to the obstacle-filled region at various speeds, including speeds in excess of minimum planing speed. Explosive material is contained in the barge's hollow region (s). A plurality of detonators are coupled to a top surface of the ... |
|
| Sense Amplifier Control System for Ferroelectric Memories |
11 AUG 1998 |
|
| Authors:
Leonard J. Schwee; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Different sequences of pulses applied to three terminals of a sense amplifier section in timed relation to address pulses applied to a word line of a ferroelectric memory cell, controls detection and transfer of data with respect to a selected bit line to which the sense amplifier section is connected for rapid reset following data transfer without any precharge. |
|
| Surface Layer Comprising Micro-Fabricated Tiles for Electromagnetic Control of Fluid Turbulence in Sea Water |
11 AUG 1998 |
|
| Authors:
Promode R. Bandyopadhyay; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A surface layer for use in connection with an object adapted for motion through a fluid includes an array of tiles each having a pair of electrodes and a pair of magnetic poles positioned to generate respective electric and magnetic fields generally transverse to each other. Either or both of the electrodes or magnetic poles are controllable to provide adjustable electrical and/or controllable magnetic fields. A plurality of turbulence sensors ... |
|
| Type II Quantum Well Laser with Enhanced Optical Matrix |
11 AUG 1998 |
|
| Authors:
Jerry R. Meyer; Craig A. Hoffman; Filbert J. Bartoli; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| The invention pertains to a type II multiple quantum well, 4 constituent active region, optically clad electrically pumped and optically pumped laser for emitting at a wavelength greater than or equal to about 2.5 microns is disclosed. The active region comprises one or more periods, each period further comprising a barrier layer, a first conduction band layer, a valence band layer and a second conduction band layer. |
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| Neural Network Architecture for Gaussian Components of a Mixture Density Function |
04 AUG 1998 |
|
| Authors:
Roy L. Streit; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A neural network for classifying input vectors to an outcome class under the assumption that the classes are characterized by mixtures of component populations having a multivariate Gaussian likelihood distribution. The neural network comprises an input layer for receiving components of an input vector two hidden layers for generating a number of outcome class component values, and an output layer. The first hidden layer includes a number of first layer ... |
|
| Method for Launching Projectiles with Hydrogen Gas. |
04 AUG 1998 |
|
| Authors:
Woodrow W. Lee; Richard D. Ford; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A method for propelling a projectile by applying a high power pulse of electrical current to a metal fuel element (of Al. Al-Li, or Al-Mg) causing the element to explode dispersing molten metal fuel into water with which it reacts to rapidly generate hydrogen gas at high pressure, the hydrogen gas is used to push the projectile. After the peak current is reached, an inductive electrical energy source drives the ... |
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Reports by Corporate Author
