UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES (USA)
ARIZONA BOARD OF REGENTS O/B/O ARIZONA STATE UNIVERSITY (USA)
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Apul, Onur G.
Bouchard, Deborah A.
Garcia-Segura, Sergio
Graf, John G.
Abstract
Presented herein are systems and methods related to associating nanobubbles (NBs) with a composition (e.g., a liquid composition). NBs are ultrafine gas domains in liquid with nano-scale diameters that are, on average, smaller than 1000 nm diameter (e.g., about 200nm in diameter or less). NBs have remarkably large interfacial surface areas and have unique physicochemical properties due to their small dimensions. The small size (e.g., diameter) and higher surface tension of NBs increase the interfacial gas-liquid surface area, which in turn promotes mass transfer. In some embodiments, NBs (e.g., oxygen NBs) can be suspended in a composition (e.g., water) long periods of time and produce reactive oxygen species without added catalysts. However, NB applications in water treatment applications have not been widely explored.
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Morin, Lee M.
Shultz, Chad A.
Abstract
A scissor assembly includes a scissor apparatus having a first scissor jaw and a second scissor jaw that are coupled together. The first scissor jaw has a first jaw face, and the second scissor jaw has a second jaw face that opposes the first jaw face. The scissor apparatus is configured to actuate between a closed position and a plurality of open positions. The scissor assembly includes a pivot pin extending through the first and second scissor jaws. The first and second jaws are configured to rotate around the pivot pin as the scissor apparatus actuates between the closed position and the open positions. The scissor assembly includes a dynamic pin positioned between the first jaw face and the second jaw face. The scissor assembly includes a biasing member positioned at least partially around the scissor apparatus and configured to bias the scissor apparatus toward the closed position.
G05G 1/04 - Controlling members for hand-actuation by pivoting movement, e.g. levers
G05G 5/03 - Means for enhancing the operator's awareness of the arrival of the controlling member at a command or datum positionProviding feel, e.g. means for creating a counterforce
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Koshti, Ajay M
Abstract
A method for detecting a target flaw using a radiographic inspection system includes selecting a plurality of simulated flaws. The method also includes performing a flaw detection simulation on the simulated flaws. The method also includes determining a plurality of output indication parameters for each of the simulated flaws based at least partially upon the flaw detection simulation. The output indication parameters include a contrast-to-noise ratio (CNR), a resolution ratio, a length-to-width (L/W) indication ratio, and a probability parameter. The method also includes determining a contrast-to-noise ratio sensitivity function (CNR SF) based at least partially upon the output indication parameters. The method also includes qualifying the radiographic inspection system to detect the target flaw based at least partially upon the CNR SF.
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Winn, Ross
Hood, Anthony
Bergman, Heather
Newman, Curtis
Breaux, Eric
Abstract
A tube straightening tool includes a tool housing having an exterior defining a tube entrance opening that opens into a first end of an internal cavity, and has an interior end wall at a second end of the internal cavity. The tool housing has an interior side wall extending from the tube entrance opening toward the interior end wall. A press block is in the internal cavity and a knob is external to the tool housing. A threaded shaft extends from the knob through the shaft opening into the internal cavity. The press block is coupled to the threaded shaft. Turning the knob moves the press block toward the interior side wall, and an exterior of a tube resting in the internal cavity is confronted by the press block and moved against the interior side wall. A method of straightening a tube using the tool is disclosed.
B21D 3/10 - Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
5.
Radiographic crack image quality indicator system and method
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Koshti, Ajay M
Abstract
An image quality indicator (IQI) system includes a crack IQI. The crack IQI includes a penetrameter having a first body and a second body disposed in the first body. The first body has a first body inner surface defining a first body hole. The second body has a second body outer surface disposed adjacent the first body inner surface to form an interface having an interface gap. The IQI system also includes a radiation source spaced from the penetrameter and configured to transmit radiation rays to the penetrameter. The IQI system also includes a radiation detector disposed adjacent the penetrameter and configured to generate an IQI radiographic image indicative of an interface gap characteristic of the interface gap.
G01N 23/18 - Investigating the presence of defects or foreign matter
G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material
G01N 23/083 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Rogers, Jonathan M.
Peters, Benjamin J.
Laske, Evan
Mcbryan, Emily R.
Abstract
A grasp assist system includes a glove having a glove palm and fingers, with the glove worn on a user's hand. A sensor measures flexion of the glove fingers, and thus a change of position and/or attitude of the fingers is determined. Finger saddles at least partially surround a phalange of a respective one of the user's fingers. The system uses one or more tendon actuators to pull on flexible tendons. Each tendon connects to a respective finger saddle. A controller is in communication with the actuators and sensor(s). The glove may use feedback from optional contact sensors to adjust tension, and may have a built-in restorative force. In executing a control method, the controller selectively applies tension to the tendons in response to finger flexion, via the tendon actuators, at a level sufficient for moving the user's fingers when the user executes a hand maneuver.
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Hunsaker, Dakota
Ortiz-Sanchez, Gabriel
Abstract
A joint includes a shell that is hollow and at least partially spherical. The shell includes a plurality of shell rail sections including a first shell rail section. The first shell rail section includes a portion of an outer surface of the shell, a portion of an inner surface of the shell, and an opening edge section that defines a shell opening. The joint also includes a plurality of rotatable members including a first rotatable member. The first rotatable member includes an outer cup positioned at least partially outside of the shell and having an outer track surface, and an inner cup positioned at least partially inside of the shell and having an inner track surface. The first shell rail section is positioned at least partially between the outer and inner track surfaces.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Weislogel, Mark M.
Graf, John C.
Shapiro, Nora D.
Torres, Logan
Rasheed, Rawand M.
Jenson, Ryan
Abstract
Methods and systems are provided for a multiplexed phase separating inertial filter that is composed of helical through holes generating centrifugal separating forces. In one example, the inertial filter may be a planar porous material with an array of helical channels, each helical channel of the array of helical channels extending from a top surface of the porous material to a bottom surface of the porous material.
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
B33Y 80/00 - Products made by additive manufacturing
9.
Control of oxygen fugacity in a high pressure solid media assembly using a double capsule
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Righter, Kevin
Abstract
A double capsule assembly includes an outer capsule and an inner capsule configured to be positioned within the outer capsule. The inner capsule is configured to have a sample positioned therein. The double capsule assembly is configured to be placed in a solid media assembly to analyze or synthesize the sample.
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Moses, Robert W.
Cheatwood, Foy M.
Johnston, Christopher O.
Macheret, Sergey
Parent, Bernard
Little, Justin
Abstract
A magnetohydrodynamic (MHD) flow control mechanism is described which substantially improves the existing processes in that smaller magnetic fields, requiring far less mass, may be placed away from the forebody of the spacecraft to produce Lorentz forces that augment the lift and the drag forces for guidance, navigation, and control of the spacecraft. The MHD flow control mechanism may also be configured to provide additional thermal protection of the electrodes therein.
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Beck, Christopher E.
Herrera, Eduardo
Lovan, Austin
Sanchez, Jairo
Donnan, Andrew S.
Rovekamp, Roger
Luthman, Briana
Behan, Edward B.
Prince, Richard M.
Lekstutis, Arthur J.
Abstract
A portable system for dynamometry, exercise, and rehabilitation comprises a base, a detachable servomotor assembly, an embedded control system, and a physical human-machine interface for securing a human limb into a stabilized position for use in a repeatable and ambidextrous manner. In another embodiment, the portable system includes a power source and a user interface subsystem for selecting operative modes and input parameters and for real-time processing, display, and storage of the values collected by the system during operation. In another embodiment, a method for determining strength of an isolated muscle group of a human joint is disclosed. The method includes the steps of mounting and securing a detachable servomotor assembly of a portable dynamometer upon a surface and securing the human joint to be tested into a stable position with an adjustable, ambidextrous distal limb attachment assembly for use of the portable dynamometer in a readily repeatable manner.
A63B 23/04 - Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
A63B 21/005 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
A63B 21/00 - Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
A61H 1/02 - Stretching or bending apparatus for exercising
A61B 5/22 - ErgometryMeasuring muscular strength or the force of a muscular blow
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Creager, Colin M.
Padula, Santo A.
Young, Calvin
Abstract
The innovation presented herein provides among its embodiments, a non-pneumatic structure such as a vehicle tire, consisting of a matrix of shape memory alloy (SMA) elements. The interlocking layering pattern provides geometries which leverage the SMA material properties to accomplish performance characteristics of traditional pneumatic structures across a spectrum of possible desired uses including normal personal use, recreational use, sport use and commercial use. Embodiments include applying structural design and material properties to provide a fixed or a variable set of performance characteristics. Similar to the fruits of other space program initiatives, the innovation leverages material science developed for extra-terrestrial purposes to accomplish advances over conventional items.
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Dimpault-Darcy, Eric C
Darst, John J.
Walker, William Q.
Rickman, Steven L.
Anderson, Natalie N.
Khurana, Christiaan
Drolen, Bruce L.
Bayles, Gary
Bilc, Zoran
Abstract
A system for measuring a heat response of a cell during a thermal runaway event includes a housing. An insulation is positioned within the housing. A calorimeter is positioned within the insulation and the housing. The calorimeter is configured to have the cell positioned therein. The calorimeter is configured to measure a temperature increase of the cell, one or more components of the calorimeter, or a combination thereof during the thermal runaway event of the cell. A total energy yield of the thermal runaway event is configured to be determined based at least partially upon the temperature increase. A ratio is configured to be determined based at least partially upon the temperature increase. The ratio includes energy released through a casing of the cell during the thermal runaway event vs. energy released through ejecta material from the cell during the thermal runaway event.
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
14.
Internal radio-frequency instrumentation system and method
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Wagner, Raymond S
Hafermalz, David S
Fink, Patrick W.
Zalkin, Chad
Seegmiller, Ray
Abstract
A method for streaming sensor data from a set of radio-frequency identification (RFID) tags includes determining an initial communication approach to be performed with respect to each RFID tag. The method also includes managing access to the RFID tag by refining the initial communication approach based on records of successes and failures of the initial communication approach. A radio-frequency identification (RFID) system is also disclosed, the system comprising one or more processors and a memory system comprising one or more non-transitory computer-readable media storing instructions that, when executed by at least one of the one or more processors, causes the system to perform operations for streaming sensor data from one or more RFID tags to one or more RFID readers.
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Abstract
A radio frequency identification (RFID) system includes an RFID interrogator configured for generating an RFID signal, wherein a channel frequency of the RFID signal changes over time; at least one patch antenna; and at least one feed line configured for feeding the signal to the corresponding at least one patch antenna. In another exemplary embodiment, an RFID interrogator configured for generating an RID signal, wherein a channel frequency of the RFID signal changes over time; at least one transmission line; and a diplexer coupling the RFID interrogator and the transmission lines and configured for distributing the RFID signal to each of the antennas or transmission lines, respectively, depending on the channel frequency of the RFID signal generated. The antennas or transmission lines are configured to transmit an electromagnetic wave in response to and at the channel frequency of the RFID signal distributed thereto.
H04L 5/08 - Channels characterised by the type of signal the signals being represented by different frequencies each combination of signals in different channels being represented by a fixed frequency
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Rogers, Tanya K.
Graf, John
Weislogel, Mark
Abstract
A system and method for removing one or more predetermined gases from an environment is herein disclosed. An embodiment of the system and method will now be described. A means for conveying a fluid and a means for flowing the fluid is combined with adsorber and desorber sections. The fluid flows in the means for conveying the fluid by the means for flowing the fluid. Comparably, the fluid flows in the adsorber and desorber sections not by the means for flowing the fluid, but rather by capillary action. In the adsorber section, the environment is in direct contact with the fluid. The fluid is capable for adsorbing one or more gases from the environment. The fluid exits the adsorber section and subsequently flows into the desorber section. The desorber section is self-contained wherein an inner portion of the desorber section is not in direct contact with the environment. In the desorber section, the one or more gases are desorbed from the fluid into the inner portion of the desorber section. In an embodiment, the one or more gases exit the desorber section and the system as a whole.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Wagner, Raymond S
Fink, Patrick W
Hafermalz, David S.
Abstract
A system includes a plurality of radiofrequency identification (RFID) tags including a first RFID tag. The first RFID tag is configured to perform RFID tag operations that include acquiring one or more samples using a sensor of the first RFID tag. The RFID tag operations also include writing the one or more samples in a memory of the first RFID tag. The RFID tag operations also include transferring custody of the one or more samples to a first RFID reader on request. The system also includes a plurality of RFID readers including the first RFID reader. The first RFID reader is configured to perform RFID reader operations including reading an identifier from each of the plurality of RFID tags in view of the first RFID reader during an inventory management mode.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Rovekamp, Roger
Beck, Christopher
Cornwall, Craig
Abstract
A system and method is provided for a wearable robotic upper body garment. In an embodiment, an upper body garment or apparatus comprises a shoulder saddle, one or more actuators, one or more flexible tendons, back torso section, front, torso section, torso wrap, and upper arm cuff. The shoulder saddle may be comprised of a yoke and one or more elevated shoulder sections. The one or more elevated should sections may be comprised of a first elevated shoulder section. In an embodiment, the back torso and front torso sections may be structurally connected to the yoke. In an embodiment, the one or more actuators may be structurally connected to either said back torso section or front torso section. In an embodiment, the one or more flexible tendons may be operationally connected to a predetermined one or more actuators and an upper arm cuff. In an embodiment and during operations, the one or more actuators effectuate a pulling motion on one or more flexible tendons enabling or augmenting movement about an upper extremity joint.
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Mcbryan, Emily R.
Rogers, Jonathan M.
Peters, Benjamin J.
Laske, Evan
Abstract
A grasp assist system includes a glove, finger saddles attached to a respective glove finger, one or more tendon actuators, and artificial tendons. The saddles have a rectangular body partially circumscribing a respective glove finger. Each saddle includes end lobes at opposite distal ends of the body. A first end of each tendon is secured to one of the tendon actuators. A second end forms a triple Brummel loop defining a main loop and two anchor loops. The anchor loops are disposed around the lobes. The saddles may form a rounded, double-headed arrow shape that is at least double the thickness of the body. The finger saddles are anisotropic, with different bending strengths depending on the axis, and may be constructed of thermoplastic polyurethane-coated nylon. Flexion and/or contact sensors and a controller, may be used. A method of connecting the tendon actuator to the finger is also disclosed.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Liu, Yong
Abstract
Calibration of a hexapod structure includes measuring a head pose of the hexapod structure relative to a base of the hexapod structure. Calibration of the hexapod structure also includes for each strut, independently increasing a length of each strut by a predefined amount from an original length and repeating the measuring of the head pose relative to the base. Calibration of the hexapod structure further includes for each strut, independently decreasing a length of each strut by a predefined amount from the original length and repeating the measuring of the head pose relative to the base. Additionally, calibration of the hexapod structure includes moving each strut back to the original length, and estimating joint errors for each strut prior to calibrating of the hexapod structure.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
F16M 11/12 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
G06N 3/04 - Architecture, e.g. interconnection topology
G05B 15/02 - Systems controlled by a computer electric
G05D 3/20 - Control of position or direction using feedback using a digital comparing device
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Waldersen, Matthew R
Abstract
A wireless flight sensor system that incorporates a network of wireless sensors all in communication with a sensor gateway, the gateway in turn being in communication with a flight network. The sensor gateway includes a software defined radio (SDR) by which sensors communicate. The SDR is easily reconfigurable to accommodate new wireless technology. The flight network software (FNS) comprises a modular software architecture with a management repository, a traffic manager, a wireless interface controller, and a sensor database. The resulting system is both scalable and easily reprogrammable to accommodate a wide variety of current and future wireless sensing capability.
H04L 12/66 - Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
H04L 29/06 - Communication control; Communication processing characterised by a protocol
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
H04B 1/00 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission
H04L 7/00 - Arrangements for synchronising receiver with transmitter
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Rogers, Jonathan M.
Peters, Benjamin J.
Laske, Evan
Mcbryan, Emily R.
Abstract
A grasp assist system includes a glove having a glove palm and fingers, with the glove worn on a user's hand. A sensor measures flexion of the glove fingers, and thus a change of position and/or attitude of the fingers is determined. Finger saddles at least partially surround a phalange of a respective one of the user's fingers. The system uses one or more tendon actuators to pull on flexible tendons. Each tendon connects to a respective finger saddle. A controller is in communication with the actuators and sensor(s). The glove may use feedback from optional contact sensors to adjust tension, and may have a built-in restorative force. In executing a control method, the controller selectively applies tension to the tendons in response to finger flexion, via the tendon actuators, at a level sufficient for moving the user's fingers when the user executes a hand maneuver.
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Hulse, Aaron M.
Pham, Harrison D.
Lewis, Stanley
Abstract
The embodiments described herein include a method and system for determining velocity and a motor controller implementing such velocity determination. In one embodiment, a rotatable element has a digital encoder coupled thereto for determining discrete angular positions of the rotatable element. An amount of time for the rotatable element to rotate between two successive ones of the discrete angular positions is measured. The amount of time is converted to a rotational velocity determination of the rotatable element.
G05B 19/21 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
G01P 21/02 - Testing or calibrating of apparatus or devices covered by the other groups of this subclass of speedometers
24.
Non-invasive tension-measurement devices and methods
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Litteken, Douglas A
Daum, Jared S
Abstract
A tension-measurement device configured to determine a tension in a line includes a body. The body includes a first portion, a second portion extending from the first portion of the body, and a third portion extending from the first portion of the body. The line is configured to extend at least partially through the second and third portions of the body. A first sensor is coupled to the body and is configured to measure a strain on the body when a first portion of the line is placed under tension. The tension in the first portion of the line is configured to be determined based at least partially upon the strain.
G01L 5/102 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors located at a non-interrupted part of the flexible member
25.
Recycle feedstocks for on-demand article manufacturing
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
COLLEGE OF WILLIAM AND MARY (USA)
Inventor
Wohl, Christopher J
Applin, Samantha I
Schniepp, Hannes
Horvath, Bryce L
Abstract
A method of recycling a polymer structure includes converting a first polymer structure into feedstock. The first polymer structure comprises particles that are bonded to one another by chemical click bonds to form a first shape. The first polymer structure is converted into feedstock particles by breaking the click bonds. The feedstock particles are formed into a second shape, and the feedstock particles are chemically click-bonded together to form a second polymer structure having a second shape. Breaking the click bonds may include heating the particles. The structures may be formed by causing first particles having dienes to chemically bond to dienophiles of second particles.
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Sims, Iii, William Herbert
Abstract
A dual-band patch antenna includes a first patch antenna for operation at a first frequency and a second patch antenna for operation at a second frequency that is an integer multiple of the first frequency. A dielectric support is provided on which the first and second patch antennas are mounted. A nearest distance defined between the first and second patch antennas is a function of the second frequency and a dielectric constant of the dielectric support. The dielectric support has a feed point adapted to have a transmission line electrically coupled thereto. Electrically-conducting paths are coupled to the dielectric support for electrically coupling the feed point to the first and second patch antennas where at least one such electrically-conducting path has an insertion loss that is greater than 0 dB and less than or equal to 3 dB.
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Koshti, Ajay M.
Abstract
Methods and systems for analyzing and processing digital data comprising a plurality of infra-red (IR) video images acquired by a pulse thermography system are used to compute video data from the raw and smoothed video data acquired for the performance of non-destructive evaluation. New video data types computed may include but are not limited to contrast evolution data such as normalized contrast, converted contrast and normalized temperature contrast. Additionally, video data types computed comprise surface temperature, surface temperature rise and temperature simple contrast.
H04N 3/09 - Scanning details of television systemsCombination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector for electromagnetic radiation in the invisible region, e.g. infrared
G06K 9/32 - Aligning or centering of the image pick-up or image-field
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Koshti, Ajay M
Abstract
Methods and systems for analyzing and processing digital data comprising a plurality of infra-red (IR) video images acquired by thermography system are used to compute video data from the raw and smoothed video data acquired for the performance of non-destructive evaluation. New video data types computed may include but are not limited to contrast evolution data such as normalized contrast, converted contrast and normalized temperature contrast. Additionally, video data types computed comprise surface temperature, surface temperature rise and temperature simple contrast.
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Abstract
A radio frequency identification (RFID) system includes an RFID interrogator configured for generating an RFID signal, wherein a channel frequency of the RFID signal changes over time; at least one single feed patch antenna; and at least one single feed line configured for feeding the signal to the corresponding at least one single feed patch antenna. The single feed patch antenna is configured to transmit an electromagnetic wave in response to and at the channel frequency of the RFID signal such that the electromagnetic wave exhibits (1) a polarization tilt angle that varies depending on the channel frequency of the signal, (2) a substantially linear polarization at all channel frequencies of the signal within the given operational bandwidth, and (3) a range of polarization tilt angles across the given operational bandwidth that spans at least 70 degrees within a single quadrant. A method for frequency multiplexing includes similar components.
H04L 5/08 - Channels characterised by the type of signal the signals being represented by different frequencies each combination of signals in different channels being represented by a fixed frequency
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
30.
Fiber optic temperature sensors within inert gas for cryogenic environments
United States of America as Represented by the Adminstrator of the National Aeronautics and Space Adminstration (USA)
Inventor
Parker, Jr., Allen R.
Piazza, Anthony
Chan, Hon Man
Warner, Ryan M
Abstract
The present invention is a temperature sensor for cryogenic systems using a fiber optic interrogation system that is capable of a large number of temperature readings across the cryogenic environment at high resolutions. The invention also includes a method of using such a system to measure temperatures in a cryogenic environment and a method of making such a system.
G01K 13/00 - Thermometers specially adapted for specific purposes
G01K 11/32 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres
G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
G01L 1/24 - Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis
31.
Contrast based imaging and analysis computer-implemented method to analyze pulse thermography data for nondestructive evaluation
The United States of America as represented by the Administator of the National Aeronautics and Space Administration (USA)
Inventor
Koshti, Ajay M.
Abstract
Methods and systems for analyzing and processing digital data comprising a plurality of infra-red (IR) video images acquired by a pulse thermography system are used to compute video data from the raw and smoothed video data acquired for the performance of non-destructive evaluation. New video data types computed may include but are not limited to contrast evolution data such as normalized contrast, converted contrast and normalized temperature contrast. Additionally, video data types computed comprise surface temperature, surface temperature rise and temperature simple contrast.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Arteaga, Ricardo A
Abstract
The present invention proposes an automatic dependent surveillance broadcast (ADS-B) architecture and process, in which priority aircraft and ADS-B IN and radar traffic information are included in the transmission of data through the telemetry communications to a remote ground control station. The present invention further proposes methods for displaying general aviation traffic information in three and/or four dimension trajectories using an industry standard Earth browser for increased situation awareness and enhanced visual acquisition of traffic for conflict detection. The present invention enable the applications of enhanced visual acquisition of traffic, traffic alerts, and en-route and terminal surveillance used to augment pilot situational awareness through ADS-B IN display and information in three or four dimensions for self-separation awareness.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Rovekamp, Roger
Parsons, Adam H.
Radford, Nicolaus A.
Kanelakos, Carolynn J
Neuhaus, Peter
Mehling, Joshua S.
Abstract
In an embodiment, a relative deflection detector may include at least two structural arcs, and a predetermined number of means for measuring position capable of determining the relative deflection in a first component. The at least two structural arcs may be for example, comprised of a first and second structural arc whereby the first and second structural arcs are attached to the first component at respective first and second predetermined locations and whereby each arc is comprised of a respective sequence of indicators, such as, for example, codes inscribed on the outer circumference of each arc. The first and second structural arcs may be positioned in concentric and coplanar relationship with each other. The predetermined number of sensors may be comprised of a first and second optical encoder sensor each positioned in proximate and coplanar relationship with the first and second structural arcs so as to read the first sequence of codes, second sequence of codes, or both, and thereby detect positions of each structural arc (e.g., a first position corresponding to the first structural arc and a second position corresponding to the second structural arc). The first and second positions may be used to calculate and thereby determine a relative deflection of the first component.
G01L 3/08 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving optical means for indicating
B25J 9/12 - Programme-controlled manipulators characterised by positioning means for manipulator elements electric
B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
F16H 55/14 - Construction providing resilience or vibration-damping
G01D 5/347 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G01L 3/14 - Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
G01L 3/12 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving photoelectric means
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
34.
Beamforming rectennas, systems and methods for wireless power transfer
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Boose, Haley C.
Abstract
A passive beamforming rectenna includes a plurality of antennas, a plurality of terminal port rectifying circuits, and a beamforming network. The beamforming network includes (a) a plurality of antenna ports connecting to the plurality of antennas, and (b) a plurality of terminal ports connecting to the plurality of terminal port rectifying circuits. The beamforming network further includes a microwave lens or any of a variety of other structures. The beamforming rectenna is characterized by a plurality of radiation distribution patterns. Electromagnetic power is received through the plurality of antennas. The beamforming network directs the received electromagnetic power, in substantial portion, to a subset of the plurality of terminal ports associated with particular radiation distribution patterns whose amplitudes, in the direction from which the electromagnetic power was received, are large relative to the amplitudes, in the same direction, of other radiation distribution patterns associated with other terminal ports.
H01F 27/42 - Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors or choke coils
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/04 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
35.
Contrast based imaging and analysis computer-implemented method to analyze pulse thermography data for nondestructive evaluation
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Koshti, Ajay M.
Abstract
Methods and systems for analyzing and processing digital data comprising a plurality of infra-red (IR) video images acquired by a pulse thermography system are used to compute video data from the raw and smoothed video data acquired for the performance of non-destructive evaluation. New video data types computed may include but are not limited to contrast evolution data such as normalized contrast, converted contrast and normalized temperature contrast. Additionally, video data types computed comprise surface temperature, surface temperature rise and temperature simple contrast.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Love, Stanley G.
Morin, Lee M.
Mccabe, Mary E.
Abstract
An apparatus, method, and system for controlling motion in six degrees of freedom is described. The apparatus includes a support structure, a first pedal and a second pedal. A first set of three independent articulating mechanisms is operatively connected to the support structure and the first pedal. The first set of three independent articulating mechanisms, in combination, enable motion of the first pedal in three control axes corresponding to three discrete degrees of freedom. A second set of three independent articulating mechanisms, operatively connected to the second pedal, enable motion, in combination, in three control axes corresponding to a discrete second set of three degrees of freedom. The apparatus may also include first and second sensors configured to detect the motion of the first and second pedals.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Yang, Guangning
Chen, Jeffrey R.
Abstract
An apparatus for improving a pointing capability of an optical pointing system includes a star tracker attitude control system for maintaining an alignment between the optical pointing system and a target, a beam steering mirror controlled by the star tracker attitude control system to direct an optical signal to impinge on the target, a fixed optical assembly configured to direct a portion of the optical signal from the bean steering mirror into a field of view of a star tracker telescope of the star tracker attitude control system, and a detector array for detecting the portion of the optical signal superimposed over a location in a current star scene in the star tracker telescope field of view, where the star tracker attitude control system is configured to operate the beam steering mirror to maintain the optical signal on the target by maintaining the superimposed signal on the location in the star scene.
G02B 23/02 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors
38.
Frequency multiplexed radio frequency identification
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Kinion, Lucas S.
Abstract
A radio frequency identification (RFID) system for frequency multiplexing includes, in one exemplary embodiment, and RFID interrogator configured for generating an RFID signal, wherein a channel frequency of the RFID signal changes over time; a first narrow band antenna, characterized by a first passband, the first passband corresponding to a first range of frequencies; a second narrow band antenna, characterized by a second passband, the second passband corresponding to a second range of frequencies, wherein the second range of frequencies differs from the first range of frequencies, whereby the second passband differs from the first passband; and first and second feed lines configured for feeding the RFID signal to each of the first and second narrow band antennas, respectively. Other embodiments include systems and methods including similar and different RFID components and aspects for frequency multiplexing.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
39.
METHOD OF MANUFACTURING A HUMIDITY SENSING MATERIAL
UNITED STATES OF AMERICA as represented by THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Rolin, Terry, D.
Small, Ian, K.
Abstract
A method is provided for manufacturing a humidity sensing material. Particles of a trivalent rare earth hydroxide or oxide (such as lanthanum hydroxide) are mixed with particles of barium oxide and titanium dioxide in specified proportions. The particle mixture is heated to generate a sintered mixture that is milled. The resulting milled particles are mixed with glass particles, an organic surfactant, a solvent, an organic vehicle, and an alkali hydroxide. The resulting liquid mixture is deposited as a layer thereof onto a substrate. The substrate and layer thereon are processed to remove liquid portions of the liquid mixture. Such liquid removal processing includes at least one cycle of heating the layer followed by a corresponding cycle of cooling the layer in a nitrogen atmosphere containing less than 25 parts per million of oxygen.
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
C04B 35/468 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C04B 35/626 - Preparing or treating the powders individually or as batches
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
40.
System and sensor for RFID-enabled information collection
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Abstract
A system and sensor provides for radio frequency identification (RFID)-enabled information collection. The system includes a ring-shaped element and an antenna. The ring-shaped element includes a conductive ring and an RFID integrated circuit. The antenna is spaced apart from the ring-shaped element and defines an electrically-conductive path commensurate in size and shape to at least a portion of the conductive ring. In an alternate embodiment, the sensor system further comprises a reference ring-shaped element in a fixed relationship with respect to the antenna, with the reference ring-shaped element defining another series circuit to include an electrically-conductive reference ring and a reference RFID integrated circuit. The system may include an interrogator for energizing the ring-shaped element and receiving a data transmission from the RFID integrated circuit that has been energized for further processing by a processor.
G06F 13/42 - Bus transfer protocol, e.g. handshakeSynchronisation
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
The United States of America, as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
U-Yen, Kongpop
Kovarik, Nathan
Abstract
A two-way microwave power divider (the “power divider”) may include an input port and two output ports. The power divider may also include a junction that is configured to split a feedline from the input port into a first transmission line and a second transmission line. One or more resistors may be placed along the first transmission line and the second transmission line to provide isolation between the two output ports.
H01P 5/18 - Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
42.
Range and intensity image-based terrain and vehicle relative pose estimation system
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Gill, Nathaniel
Van Eepoel, John M.
Galante, Joseph M.
Abstract
A navigation system includes an image acquisition device for acquiring a range image of a target vehicle, at least one processor, a memory including a target vehicle model and computer readable program code, where the processor and the computer readable program code are configured to cause the navigation system to convert the range image to a point cloud having three dimensions, compute a transform from the target vehicle model to the point cloud, and use the transform to estimate the target vehicle's attitude and position for capturing the target vehicle.
G01C 21/00 - NavigationNavigational instruments not provided for in groups
B60R 1/00 - Optical viewing arrangementsReal-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
The United States of America, as represented by the Administrator of the National Aeronautics and Space Administraion (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Abstract
A radio frequency identification (RFID) system for frequency multiplexing includes, in an exemplary embodiment, an RFID interrogator configured for generating an RFID signal, wherein a channel frequency of the RFID signal changes over time within an operating bandwidth; and one or more electromagnetic transmissive elements each extending between a first end thereof and a second end thereof, each of the electromagnetic transmissive elements electrically coupled with the RFID interrogator at the first end thereof, each of the electromagnetic transmissive elements comprising a frequency dependent load at the second end thereof and configured for transmitting the RFID signal from the RFID interrogator to the frequency dependent load, wherein the frequency dependent load presents different electromagnetic characteristics to the RFID signal transmitted to the frequency dependent load depending on the channel frequency of the RFID signal. Other embodiments include a method for frequency multiplexing including similar components.
G06K 7/00 - Methods or arrangements for sensing record carriers
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 3/22 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation in accordance with variation of frequency of radiated wave
44.
System and apparatus for genetic regulation by electromagnetic stimulation fields
United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Goodwin, Thomas J.
Shackelford, Linda C.
Abstract
The present invention provides a system for delivering a time-varying stimulation field to a subject. In the system, a power source, a control component and a transmission component operate as a stimulation field generator to provide a predetermined time-varying stimulation field to up-regulate or down-regulate an expression level of human genes. The present invention also provides a wearable apparatus for delivering the time-varying magnetic field to mammalian cells associated with bone formation in a subject. The wearable apparatus contains the stimulation field generator in a housing. The resulted modification on gene regulation of these genes and mammalian cells promotes the retention, repair of and reduction of compromised mammalian cartilage, bone, and associated tissue.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Abney, Morgan Barrera
Alleman, James E.
Abstract
A clinker for use in cement manufacturing includes a cement clinker mixture having crystals of an element that is less electronegative than carbon and carbon bonded to at least a portion of the crystals.
The United States of America as represented by the Aministrator of the National Aeronautics and Space Administration (USA)
Inventor
Rolin, Terry D.
Small, Ian K.
Abstract
A method is provided for manufacturing a humidity sensing material. Particles of a trivalent rare earth hydroxide or oxide (such as lanthanum hydroxide) are mixed with particles of barium oxide and titanium dioxide in specified proportions. The particle mixture is heated to generate a sintered mixture that is milled. The resulting milled particles are mixed with glass particles, an organic surfactant, a solvent, an organic vehicle, and an alkali hydroxide. The resulting liquid mixture is deposited as a layer thereof onto a substrate. The substrate and layer thereon are processed to remove liquid portions of the liquid mixture. Such liquid removal processing includes at least one cycle of heating the layer followed by a corresponding cycle of cooling the layer in a nitrogen atmosphere containing less than 25 parts per million of oxygen.
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
C04B 35/468 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
C04B 35/626 - Preparing or treating the powders individually or as batches
C04B 35/63 - Preparing or treating the powders individually or as batches using additives specially adapted for forming the products
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
B05D 3/04 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Abstract
A radio frequency identification (RFID) system includes an RFID interrogator and an RFID tag having a plurality of information sources and a beamforming network. The tag receives electromagnetic radiation from the interrogator. The beamforming network directs the received electromagnetic radiation to a subset of the plurality of information sources. The RFID tag transmits a response to the received electromagnetic radiation, based on the subset of the plurality of information sources to which the received electromagnetic radiation was directed. Method and other embodiments are also disclosed.
G01S 13/76 - Systems using reradiation of radio waves, e.g. secondary radar systemsAnalogous systems wherein pulse-type signals are transmitted
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
H01Q 3/40 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with phasing matrix
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H04B 7/0408 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
G06K 7/00 - Methods or arrangements for sensing record carriers
48.
Method and system for predicting rocket nozzle deformation during engine start-up and shut-down transients
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Wang, Ten-See
Abstract
Computational fluid dynamics (CFD) computations are performed at time increments using structural properties of the nozzle and flow properties of combustion products flowing through the nozzle. Each CFD computation accounts for movement of the wall geometry of the rocket nozzle due to the flowfield. Structural dynamics computations are performed at each time increment using the CFD computations in order to describe the movement of the wall geometry. Mesh dynamics computations at each time increment redefine the flowfield to account for the movement of the wall geometry. The mesh dynamics computations are based on a spring analogy process. The computations are iterated to solution convergence at each time increment with results being output to an output device.
G06F 7/60 - Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radixComputing devices using combinations of denominational and non-denominational quantity representations
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Kennedy, Timothy F.
Lin, Gregory Y.
Ngo, Phong H.
Yang, Si Hui
Abstract
An angular position sensing system includes a first support with ring-shaped elements disposed thereon and spaced apart from one another in a curvilinear arrangement. Each ring-shaped element includes an electrically-conductive ring and an RFID integrated circuit electrically coupled to its electrically-conductive ring. A second support has an antenna coupled thereto that defines an electrically-conductive path commensurate in size and shape to at least a portion of the electrically-conductive ring. An interrogator transmits a signal to the antenna wherein electric current is generated along the antenna's electrically-conductive path and electromagnetic energy emanates from the antenna. Any ring-shaped element and its RFID integrated circuit energized by the electromagnetic energy generates in response a data transmission for receipt by the interrogator. A processor coupled to the interrogator derives information related to an angular position of one of the first support and second support using the data transmission.
G01D 5/12 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means
50.
System and method for air launch from a towed aircraft
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Budd, Gerald D
Abstract
The invention is a system and method of air launching a powered launch vehicle into space or high altitude. More specifically, the invention is a tow aircraft which tows an unpowered glider, with the powered launch vehicle attached thereto, to launch altitude. The powered launch vehicle is released from the unpowered glider and powered on for launch.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Wright, Michael R.
Abstract
An apparatus and method of wirelessly powering an aerospace vehicle while the vehicle is on the ground is provided to solve a problem of supplying electric power for aircraft while idling on taxiways. Present systems typically require fuel-driven auxiliary power units (APU's) to generate electricity. Running APU's to power aircraft while idling requires over 443 million gallons of jet fuel annually at a cost of $1.3 billion dollars. This results in an estimated 4.7 megatons of carbon dioxide emissions annually. At the gate, shore power is provided via hardline connection.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Nakamura, Yosuke
Faber, Nicolas T.
Frost, Chad R.
Alena, Richard L.
Abstract
The present invention provides a heterogeneous spacecraft network including a network management architecture to facilitate communication between a plurality of operations centers and a plurality of data user communities. The network management architecture includes a plurality of network nodes in communication with the plurality of operations centers. The present invention also provides a method of communication for a heterogeneous spacecraft network. The method includes: transmitting data from a first space segment to a first ground segment; transmitting the data from the first ground segment to a network management architecture; transmitting data from a second space segment to a second ground segment, the second space and ground segments having incompatible communication systems with the first space and ground segments; transmitting the data from the second ground station to the network management architecture; and, transmitting data from the network management architecture to a plurality of data user communities.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Muirhead, Dean
Abstract
Chemical pretreatments are used to produce usable water by treating a water source with a chemical pretreatment that contains a hexavalent chromium and an acid to generate a treated water source, wherein the concentration of sulfate compounds in the acid is negligible, and wherein the treated water source remains substantially free of precipitates after the addition of the chemical pretreatment. Other methods include reducing the pH in urine to be distilled for potable water extraction by pretreating the urine before distillation with a pretreatment solution comprising one or more acid sources selected from a group consisting of phosphoric acid, hydrochloric acid, and nitric acid, wherein the urine remains substantially precipitate free after the addition of the pretreatment solution. Another method described comprises a process for reducing precipitation in urine to be processed for water extraction by mixing the urine with a pretreatment solution comprising hexavalent chromium compound and phosphoric acid.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Ryan, John J.
Abstract
An extremum-seeking control system for formation flight that uses blended performance parameters in a conglomerate performance function that better approximates drag reduction than performance functions formed from individual measurements. Generally, a variety of different measurements are taken and fed to a control system, the measurements are weighted, and are then subjected to a peak-seeking control algorithm. As measurements are continually taken, the aircraft will be guided to a relative position which optimizes the drag reduction of the formation. Two embodiments are discussed. Two approaches are shown for determining relative weightings: “a priori” by which they are qualitatively determined (by minimizing the error between the conglomerate function and the drag reduction function), and by periodically updating the weightings as the formation evolves.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Nesmith, Bill J.
Abstract
A low cost thin-film based heliostat with advanced stowing and wind survival capabilities. The heliostat may include a plurality of reflective surfaces held together via a plurality of double acting magnetic hinges. The heliostat may also include a drive mechanism attached to a post, and configured to stow the plurality of facets in any desired position.
F24J 2/00 - Use of solar heat, e.g. solar heat collectors (distillation or evaporation of water using solar energy C02F 1/14;roof covering aspects of energy collecting devices E04D 13/18;devices for producing mechanical power from solar energy F03G 6/00;semiconductor devices specially adapted for converting solar energy into electrical energy H01L 31/00;photovoltaic [PV] cells including means directly associated with the PV cell to utilise heat energy H01L 31/525;PV modules including means associated with the PV module to utilise heat energy H02S 40/44)
H01L 31/052 - Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
56.
INFLUENCE ON SURFACE INTERACTIONS BY SUBSTRUCTURE TOPOGRAPHY
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINSTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Wohl, Jr., Christopher, J.
Palmieri, Frank, L.
Abstract
A method of forming a smooth aerodynamic surface that permits laminar flow of air over the smooth aerodynamic surface. Selected portions of a surface of a substrate material are ablated utilizing a laser to form a treated substrate surface having a predefined roughness. The treated substrate surface is coated to form a solid layer of material having a smooth aerodynamic surface that promotes laminar flow. The solid layer of material has a lower modulus of elasticity than the substrate material to provide durotaxis when an insect impacts the solid layer of epoxy material to thereby reduce adhesion of insect residue or other matter to the smooth aerodynamic surface.
B05D 3/00 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
B05D 5/00 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
B08B 17/06 - Preventing deposition of fouling or of dust by giving articles subject to fouling a special shape for arrangement
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Jhabvala, Murzban D.
Jennings, Donald E.
Tucker, Compton J.
Abstract
A dual band infrared imaging system self-contained to fit within a small spacecraft is provided. The imaging system uses a detector array cooled by a mini cryocooler, and includes telescope optics and two bandpass filters for fire detection and thermal and evapotranspiration Earth science.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Abstract
Methods, apparatuses and systems for radio frequency identification (RFID)-enabled information collection are disclosed, including an enclosure, a collector coupled to the enclosure, an interrogator, a processor, and one or more RFID field sensors, each having an individual identification, disposed within the enclosure. In operation, the interrogator transmits an incident signal to the collector, causing the collector to generate an electromagnetic field within the enclosure. The electromagnetic field is affected by one or more influences. RFID sensors respond to the electromagnetic field by transmitting reflected signals containing the individual identifications of the responding RFID sensors to the interrogator. The interrogator receives the reflected signals, measures one or more returned signal strength indications (“RSSI”) of the reflected signals and sends the RSSI measurements and identification of the responding RFID sensors to the processor to determine one or more facts about the influences. Other embodiments are also described.
G08B 13/14 - Mechanical actuation by lifting or attempted removal of hand-portable articles
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
59.
Methods and systems for measurement and estimation of normalized contrast in infrared thermography
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Koshti, Ajay M.
Abstract
Methods and systems for converting an image contrast evolution of an object to a temperature contrast evolution and vice versa are disclosed, including methods for assessing an emissivity of the object; calculating an afterglow heat flux evolution; calculating a measurement region of interest temperature change; calculating a reference region of interest temperature change; calculating a reflection temperature change; calculating the image contrast evolution or the temperature contrast evolution; and converting the image contrast evolution to the temperature contrast evolution or vice versa, respectively.
H04N 3/09 - Scanning details of television systemsCombination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector for electromagnetic radiation in the invisible region, e.g. infrared
G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
G01J 5/60 - Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
G01N 25/18 - Investigating or analysing materials by the use of thermal means by investigating thermal conductivity
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Abstract
A sensor and system provide for radio frequency identification (RFID)-enabled information collection. The sensor includes a ring-shaped element and an antenna. The ring-shaped element includes a conductive ring and an RFID integrated circuit. The antenna is spaced apart from the ring-shaped element and defines an electrically-conductive path commensurate in size and shape to at least a portion of the conductive ring. The system may include an interrogator for energizing the ring-shaped element and receiving a data transmission from the RFID integrated circuit that has been energized for further processing by a processor.
H04Q 5/22 - Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre the subordinate centre not permitting interconnection of subscribers connected thereto
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
61.
System and method for detecting unauthorized device access by comparing multiple independent spatial-time data sets from other devices
The United States of America, as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Krage, Frederick J.
Westmeyer, Paul A.
Wertenberg, Russell F.
Riegel, Jack F.
Abstract
An authentication procedure utilizes multiple independent sources of data to determine whether usage of a device, such as a desktop computer, is authorized. When a comparison indicates an anomaly from the base-line usage data, the system, provides a notice that access of the first device is not authorized.
The United States of Americas as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Azimi, Shaun
Magruder, Darby
Ridley, Justin
Lapp, Anthony
Graf, Jodi
Pettinger, Ross
Abstract
A system and method is provided for traversing inside one or more pipes. In an embodiment, a fluid is injected into the one or more pipes thereby promoting a fluid flow. An inspection device is deployed into the one or more pipes at least partially filled with a flowing fluid. The inspection device comprises a housing wherein the housing is designed to exploit the hydrokinetic effects associated with a fluid flow in one or more pipes as well as maneuver past a variety of pipe configurations. The inspection device may contain one or more sensors capable of performing a variety of inspection tasks.
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Stone, Leland S.
Liston, Dorion B.
Abstract
An eye movement-based methodology and assessment tool may be used to quantify many aspects of human dynamic visual processing using a relatively simple and short oculomotor task, noninvasive video-based eye tracking, and validated oculometric analysis techniques. By examining the eye movement responses to a task including a radially-organized appropriately randomized sequence of Rashbass-like step-ramp pursuit-tracking trials, distinct performance measurements may be generated that may be associated with, for example, pursuit initiation (e.g., latency and open-loop pursuit acceleration), steady-state tracking (e.g., gain, catch-up saccade amplitude, and the proportion of the steady-state response consisting of smooth movement), direction tuning (e.g., oblique effect amplitude, horizontal-vertical asymmetry, and direction noise), and speed tuning (e.g., speed responsiveness and noise). This quantitative approach may provide fast and results (e.g., a multi-dimensional set of oculometrics and a single scalar impairment index) that can be interpreted by one without a high degree of scientific sophistication or extensive training.
A61B 3/113 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining or recording eye movement
A61B 3/00 - Apparatus for testing the eyesInstruments for examining the eyes
A61B 3/032 - Devices for presenting test symbols or characters, e.g. test chart projectors
64.
System and method for training of state-classifiers
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Stephens, Chad L.
Harrivel, Angela R.
Pope, Alan T.
Prinzel, Iii, Lawrence J
Abstract
Method and systems are disclosed for training state-classifiers for classification of cognitive state. A set of multimodal signals indicating physiological responses of an operator are sampled over a time period. A depiction of operation by the operator during the time period is displayed. In response to user input selecting a cognitive state for a portion of the time period, the one or more state-classifiers are trained. In training the state-classifiers, the set of multimodal signals sampled in the portion of the time period are used as input to the one or more state-classifiers and the selected one of the set of cognitive states is used as a target result to be indicated by the one or more state-classifiers.
G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
G06F 3/147 - Digital output to display device using display panels
A63F 13/211 - Input arrangements for video game devices characterised by their sensors, purposes or types using inertial sensors, e.g. accelerometers or gyroscopes
A63F 13/213 - Input arrangements for video game devices characterised by their sensors, purposes or types comprising photodetecting means, e.g. cameras, photodiodes or infrared cells
A63F 13/42 - Processing input control signals of video game devices, e.g. signals generated by the player or derived from the environment by mapping the input signals into game commands, e.g. mapping the displacement of a stylus on a touch screen to the steering angle of a virtual vehicle
A63F 13/212 - Input arrangements for video game devices characterised by their sensors, purposes or types using sensors worn by the player, e.g. for measuring heart beat or leg activity
UNITED STATES OF AMERICA as represented by THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Rolin, Terry, D.
Hill, Curtis, W.
Abstract
An ink of the formula: 60-80% by weight BaTi03 particles coated with Si02; 5-50% by weight high dielectric constant glass; 0.1-5% by weight surfactant; 5-25%, by weight solvent; and 5-25% weight organic vehicle. Also a method of manufacturing a capacitor comprising the steps of: heating particles of BaTi03 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of Si02 over the particles; mechanically separating the particles; Incorporating them into the above described ink formulation; depositing the ink on a substrate; and heating at 850-900°C for less than 5 minutes and allowing the ink and substrate to cool to ambient in N2 atmosphere. Also a dielectric made by: heating particles of BaTi03 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of Si02 over the particles; mechanically separating me particles; forming them into a layer; and heating at 850-900°C and allowing the layer to cool in N2 atmosphere.
C04B 35/468 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
H01B 3/12 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
H01G 11/84 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof
C04B 35/468 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Flynn, Michael T.
Gormly, Sherwin J.
Hammoudeh, Mona
Richardson, Tra-My Justine
Abstract
A method and associated system for processing waste gases, liquids and solids, produced by human activity, to separate (i) liquids suitable for processing to produce potable water, (ii) solids and liquids suitable for construction of walls suitable for enclosing a habitat volume and for radiation shielding, and (iii) other fluids and solids that are not suitable for processing. A forward osmosis process and a reverse osmosis process are sequentially combined to reduce fouling and to permit accumulation of different processable substances. The invention may be used for long term life support of human activity.
B01D 61/00 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltrationApparatus, accessories or auxiliary operations specially adapted therefor
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Lin, Gregory Y.
Ngo, Phong H.
Kennedy, Timothy F.
Abstract
A radio frequency identification (RFID) system includes an RFID interrogator and an RFID tag having a plurality of information sources and a beamforming network. The tag receives electromagnetic radiation from the interrogator. The beamforming network directs the received electromagnetic radiation to a subset of the plurality of information sources. The RFID tag transmits a response to the received electromagnetic radiation, based on the subset of the plurality of information sources to which the received electromagnetic radiation was directed. Method and other embodiments are also disclosed.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G06K 7/00 - Methods or arrangements for sensing record carriers
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H04B 7/0408 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
69.
Apparatus for controlling low power voltages in space based processing systems
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Petrick, David J.
Abstract
A low power voltage control circuit for use in space missions includes a switching device coupled between an input voltage and an output voltage. The switching device includes a control input coupled to an enable signal, wherein the control input is configured to selectively turn the output voltage on or off based at least in part on the enable signal. A current monitoring circuit is coupled to the output voltage and configured to produce a trip signal, wherein the trip signal is active when a load current flowing through the switching device is determined to exceed a predetermined threshold and is inactive otherwise. The power voltage control circuit is constructed of space qualified components.
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
H02H 3/087 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current for DC applications
70.
SYNTHESIS AND DEVELOPMENT OF POLYURETHANE COATINGS CONTAINING FLOURINE GROUPS FOR ABHESIVE APPLICATIONS
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Doss, Jereme, R.
Connell, John, W.
Wohl, Christopher, J., Jr.
Abstract
Various embodiments provide epoxy modified fluorinated urethane compositions that may provide desirable bulk mechanical properties of conventional coatings, adhesives, or structural matrix resins, while simultaneously exhibiting surface properties that may reduce surface contamination. Various embodiments provide formulations comprising epoxy modified fluorinated alkyl ether including urethane oligomer or polymer resins that may possess the requisite thermal, mechanical, chemical, and optical properties while achieving low surface energy. In various embodiments, such resins may be prepared from random urethane oligomer compositions including fluorinated alkyl ether segments, in which the oligomers may be terminated with amino groups and subsequently reacted with epoxy including monomers or oligomers.
United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Showalter, Matthew T.
Didion, Jeffrey R.
Martins, Mario S.
Robinson, Franklin L.
Abstract
An electro hydrodynamic pump apparatus includes a cartridge body member that includes an interior cavity portion and openings on either end of the cartridge body member. A first electrode member is disposed within the interior cavity portion of the cartridge body member. The first electrode member includes a conductive bar member which has a plurality of spaced apart elements extending therefrom. A second electrode member is also disposed within the interior cavity portion of the cartridge body member. The second electrode member also includes a conductive bar with a plurality of spaced apart elements extending therefrom. The elements of the first electrode member are configure to be interspersed with the elements of the second electrode member when the first electrode member and the second electrode member are disposed within the interior cavity portion of the cartridge body member.
The United States of America as Represented by the Adminstrator of the National Aeronautics and Space Administration (USA)
Inventor
Stewart, David A.
Leiser, Daniel B.
Abstract
A thermal protection system that reduces a mismatch of thermal expansion coefficients CTE between a first material layer (CTE1) and a second material layer (CTE2) at a first layer-second layer interface. A portion of aluminum borosilicate (abs) or another suitable additive (add), whose CTE value, CTE(add), satisfies (CTE(add)−CTE1)(CTE(add)−CTE2)<0, is distributed with variable additive density, ρ(z;add), in the first material layer and/or in the second material layer, with ρ(z;add) near the materials interface being relatively high (alternatively, relatively low) and ρ(z;add) in a region spaced apart from the interface being relatively low (alternatively, relatively high).
B32B 5/14 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
B32B 7/02 - Physical, chemical or physicochemical properties
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Jolley, Scott T.
Abstract
The present invention is directed to a method for powder coating a metal substrate using a low-melt polyamic acid (PAA) polymer that readily imidizes to polyimides. These low-melt PAAs have been shown to be useful in resins applied as powder coatings to metal surfaces. The resin includes an end-capping material capable of providing crosslinking functionality to at least one end of the low-melt PAA polymer. The end-capping material functions dually as a polymerization chain terminator and crosslinking agent, thus producing resins that have molecular weights low enough to flow well and form good cured films applicable for use in powder coating.
UNITED STATES OF AMERICA as represented by THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Rolin, Terry, D.
Hill, Curtis, W.
Abstract
The present invention is a dielectric ink and means for printing using said ink. Approximately 10-20% of the ink is a custom organic vehicle made of a polar solvent and a binder. Approximately 30-70% of the ink is a dielectric powder having an average particle diameter of approximately 10-750 nm. Approximately 5-15% of the ink is a dielectric constant glass. Approximately 10-35% of the ink is an additional amount of solvent. The ink is deposited on a printing substrate to form at least one printed product, which is then dried and cured to remove the solvent and binder, respectively. The printed product then undergoes sintering in an inert gas atmosphere.
B05D 5/12 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
75.
Guarded flat plate cryogenic test apparatus and calorimeter
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fesmire, James E.
Johnson, Wesley L.
Abstract
A test apparatus for thermal energy measurement of disk-shaped test specimens has a cold mass assembly locatable within a sealable chamber with a guard vessel having a guard chamber to receive a liquid fluid and a bottom surface to contact a cold side of a test specimen, and a test vessel having a test chamber to receive a liquid fluid and encompassed on one side by a center portion of the bottom surface shared with the guard vessel. A lateral wall assembly of the test vessel is closed by a vessel top, the lateral wall assembly comprising an outer wall and an inner wall having opposing surfaces that define a thermal break including a condensable vapor pocket to inhibit heat transfer through the lateral wall from the guard vessel to the test vessel. A warm boundary temperature surface is in thermal communication with a lower surface of the test specimen.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Ramspacher, Daniel J.
Bacha, Caitlin E.
Abstract
A valve assembly for an in-space propulsion system includes an inlet tube, an outlet tube, a valve body coupling the inlet tube to the outlet tube and defining a propellant flow path, a valve stem assembly disposed within the valve body, an actuator body coupled to the valve body, the valve stem assembly extending from an interior of the valve body to an interior of the actuator body, and an actuator assembly disposed within the actuator body and coupled to the valve stem assembly, the actuator assembly including a shape memory actuator member that when heated to a transition temperature is configured to enable the valve stem assembly to engage the outlet tube and seal the propellant flow path.
F16K 17/14 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side with fracturing member
F16K 31/02 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic
F16K 31/46 - Mechanical actuating means for remote operation
F02K 9/00 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant thereforControl thereof
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Littell, Justin Anderson
Street, Jon P.
Abstract
The modular fixturing system of the present invention is modular, reusable and capable of significant customization, both in terms of system radius and system height, allowing it to be arranged and rearranged in numerous unique configurations. The system includes multiple modular stanchions having stanchion shafts and stanchion feet that removably attach to apertures in a table. Angle brackets attached to the modular stanchions support shelves. These shelves in turn provide support to work pieces during fabrication processes such as welding.
B23K 37/00 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
78.
Systems and methods for designing and fabricating support structures for overhang geometries of parts in additive manufacturing
The Board of Trustees of The University of Alabma (USA)
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Chou, Yuag-Shan
Cooper, Kenneth
Abstract
Systems and methods are provided for designing and fabricating contact-free support structures for overhang geometries of parts fabricated using electron beam additive manufacturing. One or more layers of un-melted metallic powder are disposed in an elongate gap between an upper horizontal surface of the support structure and a lower surface of the overhang geometry. The powder conducts heat from the overhang geometry to the support structure. The support structure acts as a heat sink to enhance heat transfer and reduce the temperature and severe thermal gradients due to poor thermal conductivity of metallic powders underneath the overhang. Because the support structure is minimally or not connected to the part, the support structure can be removed with minimal or no post-processing step.
B32B 3/10 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Fink, Patrick W.
Chu, Andrew W.
Lin, Gregory Y.
Kennedy, Timothy F.
Ngo, Phong H.
Brown, Dewey T.
Byerly, Diane
Abstract
A system for radio frequency identification (RFID) includes an enclosure defining an interior region interior to the enclosure, and a feed for generating an electromagnetic field in the interior region in response to a signal received from an RFID reader via a radio frequency (RF) transmission line and, in response to the electromagnetic field, receiving a signal from an RFID sensor attached to an item in the interior region. The structure of the enclosure may be conductive and may include a metamaterial portion, an electromagnetically absorbing portion, or a wall extending in the interior region. Related apparatuses and methods for performing RFID are provided.
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
80.
Predicted weather display and decision support interface for flight deck
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Johnson, Walter W.
Wong, Dominic G.
Wu, Shu-Chieh
Koteskey, Robert W.
Abstract
A system and method for providing visual depictions of a predictive weather forecast for in-route vehicle trajectory planning. The method includes displaying weather information on a graphical display, displaying vehicle position information on the graphical display, selecting a predictive interval, displaying predictive weather information for the predictive interval on the graphical display, and displaying predictive vehicle position information for the predictive interval on the graphical display, such that the predictive vehicle position information is displayed relative to the predictive weather information, for in-route trajectory planning.
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Hill, Curtis, W.
Abstract
An inked electrical conductor comprises a mixture of silver powder and ethyl cellulose. The silver powder is in a range of approximately 99.0 weight percent of the mixture to approximately 99.5 weight percent of the mixture. The ethyl cellulose is in a range of approximately 0.5 weight percent of the mixture to approximately 1.0 weight percent of the mixture.
H05K 1/09 - Use of materials for the metallic pattern
B05D 5/12 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
C09D 11/10 - Printing inks based on artificial resins
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Skoog, Mark A
Prosser, Kevin
Hook, Loyd
Abstract
The present invention is a system and method for aircraft ground collision avoidance (iGCAS) comprising a modular array of software, including a sense own state module configured to gather data to compute trajectory, a sense terrain module including a digital terrain map (DTM) and map manger routine to store and retrieve terrain elevations, a predict collision threat module configured to generate an elevation profile corresponding to the terrain under the trajectory computed by said sense own state module, a predict avoidance trajectory module configured to simulate avoidance maneuvers ahead of the aircraft, a determine need to avoid module configured to determine which avoidance maneuver should be used, when it should be initiated, and when it should be terminated, a notify Module configured to display each maneuver's viability to the pilot by a colored GUI, a pilot controls module configured to turn the system on and off, and an avoid module configured to define how an aircraft will perform avoidance maneuvers through 3-dimensional space.
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Jones, Michael G.
Thomas, Russell H.
Nark, Douglas M.
Howerton, Brian M.
Czech, Michael J.
Abstract
Acoustic liners for aircraft noise reduction include one or more chambers that are configured to provide a pressure-release surface such that the engine noise generation process is inhibited and/or absorb sound by converting the sound into heat energy. The size and shape of the chambers can be selected to inhibit the noise generation process and/or absorb sound at selected frequencies.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Ramspacher, Daniel J.
Richard, James A.
Abstract
A non-pyrotechnic, normally-closed, zero-leak valve is a replacement for the pyrovalve used for both in-space and launch vehicle applications. The valve utilizes a magnetostrictive alloy for actuation, rather than pyrotechnic charges. The alloy, such as Terfenol-D, experiences magnetostriction, i.e. a gross elongation, when exposed to a magnetic field. This elongation fractures a parent metal seal, allowing fluid flow through the valve. The required magnetic field is generated by redundant coils that are isolated from the working fluid.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Haering, Jr., Edward A
Hill, Michael A
Abstract
The present invention is a system and method of visualizing fluid flow around an object, such as an aircraft or wind turbine, by aligning the object between an imaging system and a celestial object having a speckled background, taking images, and comparing those images to obtain fluid flow visualization.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Clagett, Charles E.
Santos Soto, Luis H.
Hesh, Scott V.
Starin, Scott R.
Sheikh, Salman I.
Hesse, Michael
Paschalidis, Nikolaos
Johnson, Michael A.
Ericsson, Aprille J.
Abstract
A system, method, and computer-readable storage devices for a 6U CubeSat with a magnetometer boom. The example 6U CubeSat can include an on-board computing device connected to an electrical power system, wherein the electrical power system receives power from at least one of a battery and at least one solar panel, a first fluxgate sensor attached to an extendable boom, a release mechanism for extending the extendable boom, at least one second fluxgate sensor fixed within the satellite, an ion neutral mass spectrometer, and a relativistic electron/proton telescope. The on-board computing device can receive data from the first fluxgate sensor, the at least one second fluxgate sensor, the ion neutral mass spectrometer, and the relativistic electron/proton telescope via the bus, and can then process the data via an algorithm to deduce a geophysical signal.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Stackpoole, Margaret M.
Ghandehari, Ehson M.
Thornton, Jeremy J.
Covington, Melmoth Alan
Abstract
A low-density article comprising a flexible substrate and a pyrolizable material impregnated therein, methods of preparing, and devices using the article are disclosed. The pyrolizable material pyrolizes above 350 C and does not flow at temperatures below the pyrolysis temperature. The low-density article remains flexible after impregnation and continues to remain flexible when the pyrolizable material is fully pyrolized.
UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE (USA)
Inventor
Yost, William, T
Perey, Daniel, F.
Abstract
Systems, methods, instruments and devices of the various embodiments enable improved characterization and comparison of the level and species of surface contaminants from photo- induced emission analysis. The various embodiments may provide flexibility for calculating and analyzing the time-dependence of emission efficiencies. Irregular and heterogeneous surfaces, including regionally multiply -connected surface compositions, may be analyzed according to the various embodiments, and the various embodiments include techniques that support specific contaminant identification. Various embodiment focusing techniques may enhance assessment of spatially differential regional analysis of the substrate for more critical applications. The various embodiments may also include differential comparison with reference surfaces, either through differential comparison while scanning, or by comparison to digitally stored responses to known contaminants.
G01N 21/33 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
G01N 23/22 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material
UNITED STATES OF AMERICAN as represented by THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (USA)
Inventor
Wohl, Christopher J., Jr.
Smith, Joseph G., Jr.
Abstract
Embodiments provide ice adhesion mitigating surface coatings and methods for generating the same. Embodiments may provide anti-icing coating with at least one monomeric species exhibiting molecular flexibility. The molecular flexibility in the monomeric species may be imparted through an aliphatic or heteroaliphatic chain that may exist as a portion of the monomer backbone, as a pendant group, or as both the portion of the monomer backbone and the pendant group. In various embodiments epoxy coatings including an epoxy resin and an amine-terminated hardener may be generated. At least a portion of the amine-terminated hardener may include at least a monomeric species that exhibits molecular flexibility arising from an aliphatic chain or heteroaliphatic chain that may be within the polymer backbone and/or may persist as a pendant group.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Sadleir, John E.
Abstract
2 in a non-superconducting metal or a lower transition temperature material; wherein a spatially varying order parameter is created by a proximity effect, such that the non-superconducting metal or the lower transition temperature material becomes superconductive as a temperature is lowered, creating a flux-free Meissner state at a center thereof, in order to sweep magnetic flux lines to the periphery.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Archdeacon, John L.
Iwai, Nelson H.
Kato, Kenji H.
Sweet, Barbara T.
Abstract
A RiG may simulate visual conditions of a real world environment, and generate the necessary amount of pixels in a visual simulation at rates up to 120 frames per second. RiG may also include a database generation system capable of producing visual databases suitable to drive the visual fidelity required by the RiG.
G09B 9/08 - Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
G06F 17/30 - Information retrieval; Database structures therefor
92.
High speed and high spatial density parameter measurement using fiber optic sensing technology
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Parker, Jr., Allen R
Chan, Hon Man
Richards, William Lance
Piazza, Anthony
Hamory, Philip J
Abstract
The present invention is an improved fiber optic sensing system (FOSS) having the ability to provide both high spatial resolution and high frequency strain measurements. The inventive hybrid FOSS fiber combines sensors from high acquisition speed and low spatial resolution Wavelength-Division Multiplexing (WDM) systems and from low acquisition speed and high spatial resolution Optical Frequency Domain Reflection (OFDR) systems. Two unique light sources utilizing different wavelengths are coupled with the hybrid FOSS fiber to generate reflected data from both the WDM sensors and OFDR sensors operating on a single fiber optic cable without incurring interference from one another. The two data sets are then de-multiplexed for analysis, optionally with conventionally-available WDM and OFDR system analyzers.
G02B 6/293 - Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
93.
System and method for fabricating super conducting circuitry on both sides of an ultra-thin layer
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Brown, Ari D.
Mikula, Vilem
Abstract
A method of fabricating circuitry in a wafer includes depositing a superconducting metal on a silicon on insulator wafer having a handle wafer, coating the wafer with a sacrificial layer and bonding the wafer to a thermally oxide silicon wafer with a first epoxy. The method includes flipping the wafer, thinning the flipped wafer by removing a handle wafer, etching a buried oxide layer, depositing a superconducting layer, bonding the wafer to a thermally oxidized silicon wafer having a handle wafer using an epoxy, flipping the wafer again, thinning the flipped wafer, etching a buried oxide layer from the wafer and etching the sacrificial layer from the wafer. The result is a wafer having superconductive circuitry on both sides of an ultra-thin silicon layer.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Sheth, Kapil S.
Mcnally, B. David
Erzberger, Heinz
Morando, Alexander R.
Clymer, Alexis A.
Shih, Fu-Tai
Abstract
A dynamic constraint avoidance route system automatically analyzes routes of aircraft flying, or to be flown, in or near constraint regions and attempts to find more time and fuel efficient reroutes around current and predicted constraints. The dynamic constraint avoidance route system continuously analyzes all flight routes and provides reroute advisories that are dynamically updated in real time. The dynamic constraint avoidance route system includes a graphical user interface that allows users to visualize, evaluate, modify if necessary, and implement proposed reroutes.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
G06G 7/70 - Analogue computers for specific processes, systems, or devices, e.g. simulators for vehicles, e.g. to determine permissible loading of ships
G06G 7/76 - Analogue computers for specific processes, systems, or devices, e.g. simulators for traffic
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Petrick, David J.
Vo, Luan
Albaijes, Dennis
Abstract
An electronic assembly for use in space missions that includes a PCB and one or more multi-pin CGA devices coupled to the PCB. The PCB has one or more via-in-pad features and each via-in-pad feature comprises a land pad configured to couple a pin of the one or more multi-pin CGA devices to the via. The PCB also includes a plurality of layers arranged symmetrically in a two-halves configuration above and below a central plane of the PCB.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Santos Soto, Luis H.
Hesh, Scott V.
Hudeck, John D.
Abstract
Miniature release mechanisms constrain objects, such as deployables during the launch of space vehicles, such as small satellites and nanosatellites, and enable the release of the objects once a desired destination is reached by the space vehicle. Constraint and release of the objects are achieved by providing a secure threaded interface that may be released by the release mechanisms. The release mechanisms include a housing structure; a release block can include a threaded interface; one or more retracting pins; one or more release springs; a breakable link, such as a plastic link; a cable harness clamp; and a circuit board. The release mechanism can be 0.1875 inches (approximately 4.8 mm) thick.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Park, Yeonjoon
Choi, Sang Hyouk
Abstract
An integrated hybrid crystal Light Emitting Diode (“LED”) display device that may emit red, green, and blue colors on a single wafer. The various embodiments may provide double-sided hetero crystal growth with hexagonal wurtzite III-Nitride compound semiconductor on one side of (0001) c-plane sapphire media and cubic zinc-blended III-V or II-VI compound semiconductor on the opposite side of c-plane sapphire media. The c-plane sapphire media may be a bulk single crystalline c-plane sapphire wafer, a thin free standing c-plane sapphire layer, or crack-and-bonded c-plane sapphire layer on any substrate. The bandgap energies and lattice constants of the compound semiconductor alloys may be changed by mixing different amounts of ingredients of the same group into the compound semiconductor. The bandgap energy and lattice constant may be engineered by changing the alloy composition within the cubic group IV, group III-V, and group II-VI semiconductors and within the hexagonal III-Nitrides.
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
H01L 33/16 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular crystal structure or orientation, e.g. polycrystalline, amorphous or porous
H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Chen, Bin
Abstract
3 nanowires or nanotubes, quantum dots of CdS or PbS, and Ag or Au nanostructures. The cathode can comprise a conductive gas diffusion layer with nanostructures of an electro-catalyst such as Cu or Co.
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Tucker, Dennis Stephen
Abstract
A vibrating gyroscope includes a piezoelectric strip having length and width dimensions. The piezoelectric strip includes a piezoelectric material and carbon nanotubes (CNTs) substantially aligned and polled along the strip's length dimension. A spindle having an axis of rotation is coupled to the piezoelectric strip. The axis of rotation is parallel to the strip's width dimension. A first capacitance sensor is mechanically coupled to the spindle for rotation therewith. The first capacitance sensor is positioned at one of the strip's opposing ends and is spaced apart from one of the strip's opposing faces. A second capacitance sensor is mechanically coupled to the spindle for rotation therewith. The second capacitance sensor is positioned at another of the strip's opposing ends and is spaced apart from another of the strip's opposing faces. A voltage source applies an AC voltage to the piezoelectric strip.
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration (USA)
Inventor
Rincon, Rafael F.
Abstract
A method according to an illustrative embodiment includes generating first, second, third, and fourth signals. The method also includes transmitting from an antenna, the first signal, and transmitting the antenna, the second signal. The first and second signals are configured such that when the signals are transmitted simultaneously the signals constructively interact to form a first beam signal. The first beam signal has a first look angle. The method also includes transmitting from the antenna the third signal and from the antenna the fourth signal. The third and fourth signals are configured such that when the signals are transmitted simultaneously the signals constructively interact to form a second beam signal. The second beam signal has a second look angle. The method also includes receiving a first and second reflected signals and generating an interferogram utilizing information in the first and second reflected signals.
G01S 13/524 - Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
G01S 13/90 - Radar or analogous systems, specially adapted for specific applications for mapping or imaging using synthetic aperture techniques