Patents Assigned to University of New Hampshire
  • Publication number: 20220060683
    Abstract: A system and method for colorimetric calibration is described herein. A system for performing color calibration is described, comprising at least one broad spectrum light emitting diode, at least one light diffuser plate, at least one interference filter, and a camera, the camera comprising at least one sensor for detection of colors, wherein a spectral response within 5% error of a ground truth method can be achieved. A method for performing color calibration is described, comprising transmitting light from at least one broad spectrum light emitting diode, scattering light with at least one light diffuser plate, filtering light with at least one interference filter, detecting light at a camera sensor, mapping an intensity value for each pixel of the camera sensor, and creating a quantum efficiency curve for each of red, green, and blue channels.
    Type: Application
    Filed: November 3, 2021
    Publication date: February 24, 2022
    Applicant: University of New Hampshire
    Inventor: Yuri Rzhanov
  • Patent number: 11257509
    Abstract: Techniques for EMD-based signal de-noising are disclosed that use statistical characteristics of IMFs to identify information-carrying IMFs for the purposes of partially reconstructing the identified relevant IMFs into a de-noised signal. The present disclosure has identified that the statistical characteristics of IMFs with noise tend to follow a generalized Gaussian distribution (GGD) versus only a Gaussian or Laplace distribution. Accordingly, a framework for relevant IMF selection is disclosed that includes, in part, performing a null hypothesis test against a distribution of each IMF derived from the use of a generalized probability density function (PDF). IMFs that contribute more noise than signal may thus be identified through the null hypothesis test. Conversely, the aspects and embodiments disclosed herein enable the determination of which IMFs have a contribution of more signal than noise.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: February 22, 2022
    Assignee: THE UNIVERSITY OF NEW HAMPSHIRE
    Inventors: Nicholas J. Kirsch, Mahdi H. Al-Badrawi, Bessam Z. Al-Jewad
  • Patent number: 11248269
    Abstract: The invention relates, in part, to methods to identify the presence and/or level of a pathogenic V. parahaemolyticus bacterium in a subject or in or on a substrate. Methods are provided that, in part, permit detection of infection of a subject, or contamination of a substrate by pathogenic V. parahaemolyticus bacteria.
    Type: Grant
    Filed: March 5, 2016
    Date of Patent: February 15, 2022
    Assignee: UNIVERSITY OF NEW HAMPSHIRE
    Inventors: Cheryl Whistler, Jeffrey Allister Hall, Feng Xu
  • Patent number: 11236029
    Abstract: A three step synthesis of the 8,12-dihydro-4H-dibenzo[cd,mn]pyren-3a2-ylium cation (triangulenium cation) is effected by cascade cyclization of a tetra-benzyl alcohol precursor in triflic acid solution. This cation is easily observed by NMR and optical spectroscopy. Quenching of the cation into basic solutions or by hydride transfer from triethylsilane provides access to stable dihydro and tetrahydro[3]triangulenes. This route makes several [3]triangulene precursors more readily available for development of new applications in the field of molecular electronics.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: February 1, 2022
    Assignee: UNIVERSITY OF NEW HAMPSHIRE
    Inventors: Richard Peter Johnson, Carter J. Holt
  • Patent number: 11233241
    Abstract: The present invention is directed at intercalative metal oxide/conductive polymer composites suitable for use as electrode materials for rechargeable batteries. The composites can be prepared by agitation of the metal oxide and the conductive polymer in aqueous media. The present invention is also directed at a sodium rich layered manganese oxide hydrate prepared by annealing manganese (II, III) oxide and sodium hydroxide. The sodium rich manganese (III, IV) oxide so formed indicates an enhanced capacity for Na-ion storage suitable for the use of electrode materials for aqueous energy storage.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: January 25, 2022
    Assignee: The UNIVERSITY OF NEW HAMPSHIRE
    Inventor: Teng Xiaowei
  • Patent number: 11225512
    Abstract: The present invention is directed towards the use of Growth Differentiation Factor 1 (Gdf1) and variants thereof to modulate and regulate ceramide neutralization in cells.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: January 18, 2022
    Assignee: University of New Hampshire
    Inventor: Brian Barth
  • Patent number: 11202062
    Abstract: A system and method for colorimetric calibration is described herein. A system for performing color calibration is described, comprising at least one broad spectrum light emitting diode, at least one light diffuser plate, at least one interference filter, and a camera, the camera comprising at least one sensor for detection of colors, wherein a spectral response within 5% error of a ground truth method can be achieved. A method for performing color calibration is described, comprising transmitting light from at least one broad spectrum light emitting diode, scattering light with at least one light diffuser plate, filtering light with at least one interference filter, detecting light at a camera sensor, mapping an intensity value for each pixel of the camera sensor, and creating a quantum efficiency curve for each of red, green, and blue channels.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: December 14, 2021
    Assignee: UNIVERSITY OF NEW HAMPSHIRE
    Inventor: Yuri Rzhanov
  • Publication number: 20210364289
    Abstract: An apparatus and method are presented comprising one or more sensors or cameras configured to rotate about a central motor. In some examples, the motor is configured to travel at a constant linear speed while the one or more cameras face downward and collect a set of images in a predetermined region of interest. The apparatus and method are configured for image acquisition with non-sequential image overlap. The apparatus and method are configured to eliminate gaps in image detection for fault-proof collection of imagery for an underwater survey. In some examples, long baseline (LBL) is utilized for mapping detected images to a location. In some examples, ultra-short baseline (USBL) is utilized for mapping detected images to a location. The apparatus and method are configured to utilize a simultaneous localization and mapping (SLAM) approach.
    Type: Application
    Filed: August 2, 2021
    Publication date: November 25, 2021
    Applicant: University of New Hampshire
    Inventor: Yuri Rzhanov
  • Patent number: 11169190
    Abstract: An Empirical Mode Decomposition (EMD)-based noise estimation process is disclosed herein that allows for blind estimations of noise power for a given signal under test. The EMD-based noise estimation process is non-parametric and adaptive to a signal, which allows the EMD-based noise estimation process to operate without necessarily having a priori knowledge about the received signal. Existing approaches to spectrum sensing such as Energy Detector (ED) and Maximum Eigenvalue Detector (MED), for example, may be modified to utilize a EMD-based noise estimation process consistent with the present disclosure to shift the same from semi-blind category to fully-blind category.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: November 9, 2021
    Assignee: THE UNIVERSITY OF NEW HAMPSHIRE
    Inventors: Mahdi H. Al-Badrawi, Nicholas J. Kirsch, Bessam Z. Al-Jewad
  • Patent number: 11112241
    Abstract: An apparatus and method are presented comprising one or more sensors or cameras configured to rotate about a central motor. In some examples, the motor is configured to travel at a constant linear speed while the one or more cameras face downward and collect a set of images in a predetermined region of interest. The apparatus and method are configured for image acquisition with non-sequential image overlap. The apparatus and method are configured to eliminate gaps in image detection for fault-proof collection of imagery for an underwater survey. In some examples, long baseline (LBL) is utilized for mapping detected images to a location. In some examples, ultra-short baseline (USBL) is utilized for mapping detected images to a location. The apparatus and method are configured to utilize a simultaneous localization and mapping (SLAM) approach.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: September 7, 2021
    Assignee: UNIVERSITY OF NEW HAMPSHIRE
    Inventor: Yuri Rzhanov
  • Patent number: 11072874
    Abstract: An auxetic polygonal cell may have a plurality of chiral structures capable of rotation. The plurality of chiral structures may at least partially enclose a volume. Each of the chiral structures may include a first cross member having a first set of distal ends and a second cross member intersecting the first cross member, the second cross member having a second set of distal ends. The chiral structures may also include a first set of legs, wherein each leg of the first set of legs extends from at least one distal end of the first set of distal ends and a second set of legs, wherein each leg of the second set of legs extends from at least one distal end of the second set of distal ends.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: July 27, 2021
    Assignee: University of New Hampshire
    Inventors: Yaning Li, Yunyao Jiang
  • Publication number: 20210213427
    Abstract: Techniques and methods are disclosed for producing a plurality of nanoparticles that can be used as catalysts to grow carbon or boron nitride nanotubes. The method includes mixing an iron salt including a ferrous or ferric ion with a long chain amine, thiol or polyphenol in a solvent comprising alcohol to produce a solution. Ferric or ferrous ion is reduced to zero valence iron. Nucleation of iron nanoparticles is initialized. The iron nanoparticles are capped to retard nanoparticle growth. The nanoparticles include an elemental iron core coated with a polyphenol that isolates the core from oxygen. The nanoparticles include an average diameter of less than or equal to 15.8 nanometers. The iron core may further include a secondary metal to form an iron-alloy. The secondary metal, in some applications, can be a transition metal.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Applicant: University of New Hampshire
    Inventors: David S. Lashmore, Tyler Bennett
  • Patent number: 11043479
    Abstract: An opto-coupler includes a housing having end walls configured to have high-voltage (HV) input and output conductors protruding therethrough. The opto-coupler also includes at least one light emitting diode (LED) mounted to the housing and configured to activate the HV diode to pass electrical current by emitting light toward the HV diode. At least one press-fit end cap is configured to provide a press-fit seal either between the HV input conductor and the input end wall or between the HV output conductor and the output end wall. The press-fit end cap is configured to protect the LED from damage by shaping an electric field between the HV input or output conductor and the LED. Embodiments enable compact opto-coupler sizes with high-voltage ratings, such as 8 kV or 15 kV. Electrical current transfer ratios may be much higher than in existing opto-couplers.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: June 22, 2021
    Assignee: University of New Hampshire
    Inventors: Brian J. King, Mark S. Granoff, Philip DeMaine
  • Patent number: 11031167
    Abstract: A giant perpendicular magnetic anisotropy (PMA) material comprises a III-V nitride substrate, and a layer of nitrogen disposed upon a surface of the III-V nitride substrate. The layer of nitrogen forms an N-terminated surface. The PMA material further comprises an iron film disposed upon the N-terminated surface. The III-V nitride substrate may be gallium nitride (GaN). A memory device using the PMA material may further comprise an input/output interface configured to communicate an address signal, a read/write signal and a data signal. The memory device may further comprise a controller configured to coordinate reading data from and writing data to the memory element.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 8, 2021
    Assignee: UNIVERSITY OF NEW HAMPSHIRE
    Inventors: Jiadong Zang, Jiexiang Yu
  • Publication number: 20210104639
    Abstract: Solar cells fabricated from p-n junctions of boron nitride nanotubes alloyed with carbon are described. Band gaps of boron nitride carbon alloys are tailored by controlling carbon content in the boron nitride nanotubes. High efficiency solar cells can be fabricated by tailoring the band gap of boron nitride carbon alloy nanotubes, and using these nanotubes for fabricating solar cells u. Because boron nitride carbon alloy nanotubes are transparent to most wavelengths of light, the wavelengths not converted to electrons (i.e., absorbed) at a first p-n junction in a solar cell will pass through the stack to another p-n junction in the stack having a different band gap. At each successive p-n junction, each of which has a different band gap from the other p-n junctions in the stack, more wavelengths of light will be converted into electricity. This dramatically increases the efficiency of solar cells.
    Type: Application
    Filed: July 21, 2020
    Publication date: April 8, 2021
    Applicant: University of New Hampshire
    Inventor: David S. Lashmore
  • Patent number: 10923815
    Abstract: This disclosure is generally directed to a microstrip phased array antenna with a switch line phase shifter to obtain steerable beam pattern. In an embodiment, the microstrip phased array antenna includes a plurality microstrip lines disposed/patterned on a substrate to form a relatively compact phase shifter network that can switchably introduce phase shifts into an RF signal. In particular, each phase shifter of the phase shifter network may be formed from a number of equal-length RF lines that extend from a common point and “loop” to form substantially circular paths. The common point from which each of the RF lines extend may include a VIA to couple to an antenna device. A plurality of switches, e.g., PIN diodes, may be disposed along the RF lines to switchably extend the overall length of each of the phase shifters, and more particularly each transmission line, to selectively introduce a target phase shift.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: February 16, 2021
    Assignee: UNIVERSITY OF NEW HAMPSHIRE
    Inventors: Rudra Timsina, Richard Messner
  • Publication number: 20210029812
    Abstract: A magnetic confinement system includes a magnetic minor device that includes a chamber to hold a target plasma and a coil arrangement to generate a magnetic field configuration in the chamber to confine the target plasma in cylindrically-symmetric form in the chamber, the magnetic field configuration having open ends. The magnetic confinement system further includes plasma guns to generate plasma pistons and project the plasma pistons at the open ends of the magnetic field configuration. In operation, the plasma pistons converge towards each other to close the open ends of the magnetic field configuration and to compress and heat the target plasma.
    Type: Application
    Filed: September 11, 2018
    Publication date: January 28, 2021
    Applicant: University of New Hampshire
    Inventor: James J. CONNELL
  • Patent number: 10880201
    Abstract: Techniques are provided for generating data on the optimum number of storage-hops, the location of the storage-hops, and the bandwidth distributions of the storage-hops to construct a complete flow network for transmitting data from a sender to a receiver via a communication network. The flow network can potentially include hundreds of storage-hops, depending on the time and duration of the data flow. An algorithm is further provided for constructing an unbounded flow network from a bounded set of input parameters. Moreover, the complexity of the algorithm does not depend on the number of storage-hops, so the model is suitable for both crowd supported and data center supported transfers.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: December 29, 2020
    Assignee: University of New Hampshire
    Inventor: Elizabeth Varki
  • Publication number: 20200394250
    Abstract: Systems, methods, apparatus, and techniques are presented for maintaining cupolets in a state of mutual stabilization. A first cupolet and a second cupolet are generated. A first control code is applied to the first cupolet for a first time to produce a first visitation code. The first visitation code is transformed based on an exchange function to produce a second control code. The second control code is applied to the second cupolet to produce a second visitation code. The second visitation code is transformed based on the exchange function to produce the first control code. The first control code is applied to the first cupolet for a second time.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 17, 2020
    Applicant: University of New Hampshire
    Inventors: Kevin M. Short, Matthew A. Morena
  • Publication number: 20200376475
    Abstract: A composition of a photocatalyst, a method of manufacturing the photocatalyst, and a method of chemically reducing carbon dioxide to carbon monoxide using the photocatalyst under visible-light irradiation is provided. The photocatalyst comprises a transition metal ion and graphitic carbon nitride and includes single metal sites on carbon nitride. Under visible light, the metal sites that are coordinated to nitrogen atoms get activated, without the use of additional ligands, to catalyze the reduction of carbon dioxide to selectively produce carbon monoxide. The photocatalytic reduction of carbon dioxide to carbon monoxide is highly efficient, resulting a turnover number of more than 800 for carbon monoxide production in 2 hours. The composition is useful in converting carbon dioxide into useful chemicals and carbon-based fuels. A functional model of molecular catalysts for efficient carbon dioxide reduction is also present.
    Type: Application
    Filed: June 3, 2020
    Publication date: December 3, 2020
    Applicants: University of New Hampshire, The Research Foundation for The State University of New York
    Inventors: Gonghu Li, Anatoly Frenkel, Peipei Huang, Jiahao Huang