Patents Assigned to Rensselaer Polytechnic Institute
  • Publication number: 20180325477
    Abstract: Systems and methods for obtaining simultaneous X-ray-magnetic resonance imaging (MRI) images are provided. A magnetic resonance X-ray CT (MRX) system can combine X-ray imaging and MRI in a cost-effective and relatively simple solution for improved imaging. During imaging of a subject, the X-ray source and X-ray detector can be simultaneously rotated around the subject, and the means for generating a magnetic field can also be rotated around the subject. The means for generating a magnetic field can be a plurality of permanent magnets.
    Type: Application
    Filed: November 14, 2016
    Publication date: November 15, 2018
    Applicant: Rensselaer Polytechnic Institute
    Inventors: Ge Wang, Lars Arne Gjesteby
  • Patent number: 10118134
    Abstract: The present invention relates to synthetic membranes and use of these synthetic membranes for isolation of volatile organic compounds and purification of water. The synthetic membrane includes a hydrophobic polymer layer located on a polymeric membrane support layer. The invention includes a method of isolating volatile organic compounds with the synthetic membrane by contacting a volatile organic mixture with the hydrophobic polymer layer of the synthetic membrane and removing volatile organic compounds from the polymeric membrane support layer of the synthetic membrane by a process of pervaporation. The invention also includes a method of purifying water with the synthetic membrane by contacting an ionic solution with the hydrophobic polymer layer of the synthetic membrane and removing water from the polymeric membrane support layer of the synthetic membrane by a process of reverse osmosis. The invention also relates to methods of isolating non-polar gases by gas fractionation.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: November 6, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Georges Belfort, Joseph Grimaldi, Joseph Imbrogno, James Kilduff, John Joseph Keating, IV
  • Patent number: 10092257
    Abstract: Dynamic bowties, imaging systems including a bowtie, and methods of imaging including such bowties or systems are provided. A bowtie can be a three-dimensional (3-D) dynamic bowtie and can include a highly-attenuating bowtie (HB) and a weakly-attenuating bowtie (WB). The HB can be filled with a liquid, and the WB can be immersed in the liquid of the HB.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: October 9, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Ge Wang, Fenglin Liu, Wenxiang Cong, Qingsong Yang
  • Publication number: 20180280570
    Abstract: Provided is a method of mineralizing tissue, including placing within a body of a subject a substance, wherein the substance includes osteopontin and osteocalcin. Also provided is a tissue mineralization-promoting substance including osteopontin and osteocalcin, and an article for promoting tissue mineralization, including an implant which may be an orthopedic implant or an endosseous implant, and a substance disposed on a surface of the implant including osteopontin, and osteocalcin. A method of making a tissue mineralization-promoting substance, including combining osteopontin and osteocalcin, is also provided. Other features, including calcium phosphate, type-I collagen, mesenchymal stem cells, and growth factors, are also provided.
    Type: Application
    Filed: May 2, 2016
    Publication date: October 4, 2018
    Applicant: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Atharva Abhay POUNDARIK, Marta Monteiro Silva CARVALHO, Deepak VASHISHTH
  • Publication number: 20180249979
    Abstract: Novel and advantageous systems and method for obtaining and/or reconstructing simultaneous computed tomography (CT)-magnetic resonance imaging (MRI) images are provided. Structural coupling (SC) and compressive sensing (CS) techniques can be combined to unify and improve CT and MRI reconstruction. A bidirectional image estimation method can be used to connect images from different modalities, with CT and MM data serving as prior knowledge to each other to produce better CT and MRI image quality than would be realized with individual reconstruction.
    Type: Application
    Filed: September 14, 2016
    Publication date: September 6, 2018
    Applicant: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Ge WANG, Yan XI, Wenxiang CONG, Jun ZHAO
  • Patent number: 10068586
    Abstract: A sound processing system, method and program product for estimating parameters from binaural audio data.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: September 4, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventor: Jonas Braasch
  • Patent number: 10032443
    Abstract: Systems and methods capable of providing adaptive and responsive accompaniment to music with fixed chord progressions, such as jazz and pop, are provided. A system can include one or more sound-capturing devices, a signal analyzer to analyze captured sound signals, and an electronic sound-producing component that produces electronic sounds as an accompaniment.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: July 24, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Jonas Braasch, Nikhil Deshpande, Pauline Oliveros, Selmer Bringsjord
  • Publication number: 20180192981
    Abstract: Novel and advantageous systems and methods for performing X-ray imaging by using an X-ray source with source grating functionality incorporated therein are provided. An electron beam can be electromagnetically manipulated such that the X-ray source emits radiation in a pattern that is the same as if the radiation had already passed through a source grating.
    Type: Application
    Filed: July 27, 2016
    Publication date: July 12, 2018
    Applicant: Rensselaer Polytechnic Institute
    Inventors: Ge Wang, Wenxiang Cong
  • Publication number: 20180199469
    Abstract: Methods, systems, and assemblies for cooling an electronic component are disclosed. A heat sink assembly includes first and second substrates. The first substrate is in thermal contact with the electronic component. A primary channel is formed in the second surface of the first substrate. The primary channel is configured to direct cooling fluid for cooling the electronic component. An array of primary cooling fluid fins is positioned within the primary channel. The array of primary cooling fluid fins includes upstream solid fins and downstream open fins each having an upstream opening and downstream sidewalls. The secondary channel is formed within the second surface of the second substrate and is configured to direct partially heated cooling fluid away from the electronic component. An array of secondary cooling fluid fins is positioned within the secondary channel downstream. An enclosing layer seals the secondary channel.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 12, 2018
    Applicant: Rensselaer Polytechnic Institute
    Inventors: Corey Christopher Woodcock, Joel L. Plawsky, Yoav Peles, Xiangfei Yu
  • Patent number: 10020413
    Abstract: A local concentrator apparatus is described. The apparatus includes an array of photovoltaic cells arranged along an elongated strip, and one or more optical elements. The one or more optical elements are arranged to direct and optically concentrate sunlight onto the photovoltaic cells such that position that the directed sunlight impinges onto the strip follows a path moving along the strip without the optical elements tracking the sun as the sun traverses the sky during the day.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: July 10, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventor: Partha Dutta
  • Patent number: 10020822
    Abstract: A system and method of providing error tolerant memory access operations on a memory device. A method is disclosed including: providing location information of weak memory cells, wherein the location information includes addresses grouped into tiered sets, wherein each tiered set includes addresses having a number of weak memory cells; receiving a target address for a memory read operation; reading data from a virtual repair memory if the target address belongs to a first tiered set of addresses having a number of weak memory cells exceeding a threshold; and if the target address does not belong the first tiered set of addresses, reading data from the memory device and alternatively performing (a) an error correction and error detection (ECED) operation and (b) a target address look up operation, at different settings, until an error free result is obtained.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: July 10, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Tong Zhang, Hao Wang
  • Publication number: 20180185001
    Abstract: Provided are an apparatus and method for K-edge based interior tomography image processing. The apparatus efficiently performs tomography image reconstruction by acquiring different material images using an energy-selective detector, such as a photon counting detector.
    Type: Application
    Filed: March 8, 2017
    Publication date: July 5, 2018
    Applicants: Pusan National University Industry-University Cooperation Foundation, RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Seungwook LEE, Ohsung OH, Ge WANG
  • Patent number: 10014689
    Abstract: A method for forming and operating a multi-terminal power system, includes: connecting multiple sending terminals to a network of a power system; and local control of each sending terminal to behave as a constant-power source such that both output voltage and output current of the sending terminal may simultaneously vary in response to changing external circuit conditions while maintaining constant a product of the output voltage and the output current of the sending terminal. At least one sending terminal may include a capacitive output converter having a capacitor connected between two output terminals and a controlled current source connected in parallel to the capacitor, or an inductive output converter having an inductor connected to an output terminal and a controlled voltage source connected in series with the inductor.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 3, 2018
    Assignee: RENSSELAER POLYTECHNIC INSTITUTE
    Inventor: Jian Sun
  • Patent number: 10001472
    Abstract: Described herein is a method for determining chirality of a cell. The method includes culturing a cell on a base layer having a cell growth material. The method includes forming a top layer on the base layer after the cell has attached to the base layer, the top layer having a cell growth material. The base layer and the top layer form a graded 3D substrate. The intrinsic bias of the cell is determined from the directionality of spontaneous cell rotation.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 19, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Qun Wan, Amanda S. Chin
  • Patent number: 9985434
    Abstract: A multi-terminal DC power system includes: a DC network connecting together multiple terminals. Each terminal is represented by one of: a voltage source converter having a capacitor at an interface to the DC network, wherein a difference between a converter-side current and a network-side current charges the capacitor, and a current source converter having an inductor at an interface to the DC network, wherein a difference between a converter-side voltage and a network-side voltage drives current through the inductor. A local controller for each terminal directly controls the converter-side current of each voltage source controller and the converter-side voltage of each current source converter, independent of the terminals, leaving network-side currents and voltages to be determined by the network, resulting in simplified terminal control and avoidance of the need for high-speed communication among all terminals at all times.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 29, 2018
    Assignee: RENSSELAER POLYTECHNIC INSTITUTE
    Inventor: Jian Sun
  • Patent number: 9932349
    Abstract: 8-Substituted-2,6-methano-3-benzazocines of general structure I in which A is —CH2—OH, —CH2NH2, —NHSO2CH3, and Y is O, S or NOH are useful as analgesics, anti-diarrheal agents, anticonvulsants, antitussives and anti-addiction medications. 8-Carboxamides, thiocarboxamides, hydroxyamidines and formamides are preferred.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: April 3, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventor: Mark P. Wentland
  • Patent number: 9921602
    Abstract: In steady-state voltage stability analysis, as load increases toward a maximum, conventional Newton-Raphson power flow Jacobian matrix becomes increasingly ill-conditioned so power flow fails to converge before reaching maximum loading. A method to directly eliminate this singularity reformulates the power flow problem by introducing an AQ bus with specified bus angle and reactive power consumption of a load bus. For steady-state voltage stability analysis, the angle separation between the swing bus and AQ bus can be varied to control power transfer to the load, rather than specifying the load power itself. For an AQ bus, the power flow formulation is only made up of a reactive power equation, thus reducing the size of the Jacobian matrix by one. This reduced Jacobian matrix is nonsingular at the critical voltage point, eliminating a major difficulty in voltage stability analysis for power system operations.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: March 20, 2018
    Assignee: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Joe Hong Chow, Scott Gordon Ghiocel
  • Patent number: 9922838
    Abstract: Methods for facilitating fabricating semiconductor structures are provided which include: providing a multilayer structure including a semiconductor layer, the semiconductor layer including a dopant and having an increased conductivity; selectively increasing, using electrochemical processing, porosity of the semiconductor layer, at least in part, the selectively increasing porosity utilizing the increased conductivity of the semiconductor layer; and removing, at least in part, the semiconductor layer with the selectively increased porosity from the multilayer structure. By way of example, the selectively increasing porosity may include selectively, anodically oxidizing, at least in part, the semiconductor layer of the multilayer structure.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: March 20, 2018
    Assignee: RENSSELAER POLYTECHNIC INSTITUTE
    Inventors: Rajendra P. Dahal, Ishwara B. Bhat, Tat-Sing Chow
  • Patent number: 9907928
    Abstract: A therapeutic environmental light and image system and related methods are provided. A controller controls a lighting system and one or more images displayed on a display monitor to create a virtual window in a patient recovery room that simulates characteristics of a real window. Optionally, circadian full-spectrum light cycling is delivered via a prescriptively-selected circadian light cycle, which may or may not be configured based on the images provided on the display monitor. Additionally, ultraviolet light from an ultraviolet light source may be dosed to the patient to favorably impact biologic functions and other health aspects of the patient, to facilitate patient recovery.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: March 6, 2018
    Assignees: St. Peter's Health Partners, Rensselaer Polytechnic Institute
    Inventors: George W. Seabury, Robert Cella, Mark Pettus, Dorothy Maria Urschel, Charles Gianfagna, Partha Dutta
  • Patent number: 9907138
    Abstract: A smart lighting system and method that estimates occupancy using perturbation-modulated light and distributed non-imaging color sensors. A system is disclosed that includes a plurality of non-imaging color sensors; a plurality of color controllable lights; a system that perturbs the color controllable lights within a space; a system that collects resulting color information from the non-imaging color sensors, and builds a light transport model based on collected color information; a system that estimates an occupancy pattern or distribution within a space; and an adjustment module that adjusts the color controllable lights based on the light transport model and a predefined control strategy.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: February 27, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Quan Wang, Xinchi Zhang, Kim L. Boyer