Abstract: A mucosal impedance measuring apparatus detects and measures a condition of mucosa. The mucosal impedance measuring apparatus includes a catheter comprising a tube, impedance sensing electrodes on an exterior surface of the catheter, a balloon mounted on the tube in which the balloon is capable of inflation and deflation, and an impedance measuring system. The impedance measuring system is adapted to measure a pressure-regulated impedance measurement of the mucosa that is indicative of the condition of the mucosa when the balloon is inflated and the impedance sensing electrodes direct an electric current through mucosa while the balloon is pressed against the mucosa.
Type:
Grant
Filed:
May 6, 2019
Date of Patent:
November 22, 2022
Assignees:
Diversatek Healthcare, Inc., Vanderbilt University
Inventors:
Jerry E. Mabary, Michael F. Vaezi, Thomas D. Stuebe
Abstract: A semiconductor material having the molecular formula Cu2l2Se6 is provided. Also provided are solid solutions of semiconductor materials having the formulas Cu2lxBr2-xSeyTe6-y and Cu2lxBr2-xSeyS6-y, where 0?x?1 and 0?y?3. Methods and devices that use the semiconductor materials to convert incident radiation into an electric signal are also provided. The devices include optoelectronic and photonic devices, such as photodetectors, photodiodes, and photovoltaic cells.
Abstract: A pupil detection device includes: a filter weight learner configured to generate a target image on the basis of pupil coordinate data acquired from a learning image and learn weights of a plurality of filters in order to generate a filtered image, by filtering the learning image using the plurality of filters, that is within a predetermined reference range of the target image; a split image generator configured to generate a pupil region split image for an input image using the plurality of filters having the learned weights; and a pupil coordinate detector configured to remove noise of the pupil region split image, select at least one of a plurality of pixels from which noise is removed, and detect pupil coordinates.
Type:
Grant
Filed:
September 22, 2020
Date of Patent:
November 22, 2022
Assignees:
Samsung Display Co., Ltd., Inha University Research and Business Foundation
Inventors:
Young Chan Kim, Min Gyeong Jo, Byung Cheol Song, Kang II Lee, Jun Ho Choi
Abstract: Polymer embodiments comprising nanohoop-containing polymer backbones are described, along with methods of making and using the same. The polymer embodiments exhibit unique radial and linear conjugation and can be used in a variety of devices, such as electronic and/or optoelectronic devices.
Type:
Grant
Filed:
September 25, 2020
Date of Patent:
November 22, 2022
Assignees:
University of Oregon, Georgetown University, The Johns Hopkins University
Abstract: The present invention relates to the technical field of manufacturing of metal materials, and in particular to a 7000-series aluminum alloy wire for additive manufacturing and a preparation method thereof. The wire was prepared by subjecting an Al—Ti—B intermediate alloy containing TiB2 particles generated in situ to severe plastic deformation to obtain an intermediate alloy containing TiB2 nanoparticles having a particle size of 50-1,000 nm or a mixture of two different particles; using the intermediate alloy containing TiB2 nanoparticles as a matrix raw material, adding other metal or intermediate alloy for smelting to obtain an alloy melt; preparing a wire blank with the alloy melt; subjecting the wire blank to hot rolling, drawing, intermediate annealing and surface treatment to obtain an Al—Zn—Mg—Cu alloy wire reinforced by particles at nano scale or submicron scale.
Type:
Grant
Filed:
June 25, 2020
Date of Patent:
November 22, 2022
Assignee:
Jiangxi University of Science and Technology
Abstract: A kit or composition for in situ simultaneously derivatization of 14 phenol and carboxylic acid metabolites of benzene, toluene, ethylbenzene, and xylene (BTEX) in a urine sample is disclosed. The derivatization imparts a positive charge to phenol and carboxylic acid for subsequent LC-MS analysis. Limit of detection reached part-per-trillion levels for o-Cresol and part-per-billion levels for the remaining BTEX metabolites. BTEX metabolites can be detected in less than 35 mins according to one embodiment of the invention. Methods, kits and compositions disclosed herein can be used for in situ simultaneous derivatization of phenol and carboxylic acid in aqueous solution in general.
Type:
Grant
Filed:
June 9, 2017
Date of Patent:
November 22, 2022
Assignee:
Board of Regents, The University of Texas System
Inventors:
Kevin Albert Schug, Yehia Zakaria Mahmoud Youssef Baghdady
Abstract: An actuation system for preventing actuation of a base device upon a non-target substrate. The actuation system includes a detector configured to generate and transmit a profile signal of a test substrate. A processing unit is in communication with the detector and configured to receive the profile signal of the test substrate from the detector, the processing unit being configured to determine whether the profile signal of the test substrate corresponds to a profile signal of a target substrate, and to generate an actuation signal if the profile signal of the test substrate corresponds to the profile signal of the target substrate. An actuation unit is in communication with the processing unit and the base device, the actuation unit being configured to receive the actuation signal from the processing unit and to permit the base device to actuate when receiving the actuation signal.
Type:
Grant
Filed:
April 15, 2016
Date of Patent:
November 22, 2022
Assignee:
Marquette University
Inventors:
Mark L. Nagurka, Richard W. Marklin, Jr.
Abstract: Systems and methods for simulating subterranean regions having multi-scale fracture geometries. Non-intrusive embedded discrete fracture modeling formulations are applied in conjunction with commercial simulators to efficiently and accurately model subsurface transient flow characteristics in regions having complex hydraulic fractures, complex natural fractures, or a combination of both, and geometries including corner point grids.
Type:
Grant
Filed:
December 2, 2019
Date of Patent:
November 22, 2022
Assignees:
Sim Tech LLC, Board of Regents, The University of Texas System
Abstract: Hybrid composite materials including carbon nanotube sheets and flexible ceramic materials, and methods of making the same are provided herein. In one embodiment, a method of forming a hybrid composite material is provided, the method including: placing a layer of a first flexible ceramic composite on a lay-up tooling surface; applying a sheet of a pre-preg carbon fiber reinforced polymer on the flexible ceramic composite; curing the flexible ceramic composite and the pre-preg carbon fiber reinforced polymer sheet together to form a hybrid composite material; and removing the hybrid composite material from the lay-up tooling surface, wherein the first flexible ceramic composite comprises an exterior surface of the hybrid composite material.
Type:
Grant
Filed:
October 24, 2017
Date of Patent:
November 22, 2022
Assignees:
Florida State University Research Foundation, Inc., The Government of the United States of America, as represented by the Secretary of the Navy
Abstract: Provided is a field shaping multi-well detector and method of fabrication thereof. The detector is configured by depositing a pixel electrode on a substrate, depositing a first dielectric layer, depositing a first conductive grid electrode layer on the first dielectric layer, depositing a second dielectric layer on the first conductive grid electrode layer, depositing a second conductive grid electrode layer on the second dielectric layer, depositing a third dielectric layer on the second conductive grid electrode layer, depositing an etch mask on the third dielectric layer. Two pillars are formed by etching the third dielectric layer, the second conductive grid electrode layer, the second dielectric layer, the first conductive grid electrode layer, and the first dielectric layer. A well between the two pillars is formed by etching to the pixel electrode, without etching the pixel electrode, and the well is filled with a-Se.
Type:
Grant
Filed:
December 1, 2020
Date of Patent:
November 22, 2022
Assignee:
The Research Foundation for The State University of New York
Abstract: Disclosed is an oil extraction and gas production method capable of in-situ sand control and removal by downhole hydraulic lift achieved by downhole oil extraction and gas production system and ground oil extraction and gas production system. The downhole systems mainly comprises a double-layer tube, a double-layer tube reducing joint, a double-layer tube packer, a hydrodynamic turbine motor, a sludge screw pump, a soil-sand separator and a negative pressure absorber; the ground system comprises a power fluid pressurizing module and a mix fluid treatment module. The present application lowers the difficulty of pumping and lifting downhole formation fluid; achieves downhole and in-situ sand control and sand discharge, alleviates the blockage and erosion of sand particles on equipments and reduces energy consumption; decreases the production cost and improves the operation efficiency, therefore is suitable for oil extraction and gas production in high sand content wells.
Type:
Grant
Filed:
December 30, 2021
Date of Patent:
November 22, 2022
Assignee:
Southwest Petroleum University
Inventors:
Yang Tang, Haoyu Xiong, Guorong Wang, Jinzhong Wang, Jinhai Zhao, Guangjie Yuan, Zhidong Zhang, Xushen Li, Yufa He, Jie Wu, Xin Jing, Peng Zhao, Zeliang Li
Abstract: Systems and methods according to present principles provide for three axis force sensing in a convenient and manufacturable way. In one implementation, a vibrating motor is attached at the fixed end of an anisotropic structure, such as a rod, which then vibrates in a circular motion. A monitor such as a 3-axis accelerometer is also attached to the anisotropic structure. The resulting motion is then mapped electronically for analysis. With no force applied, a circular motion is achieved. When a net force is applied to the free, vibrating end of the rod, the circular pattern which is traced out becomes distorted, e.g., progressively flattened into an ellipse, in a repeatable way which is directly proportional to the applied force. The axis of the applied force can be ascertained according to the direction in which the ellipse forms. Systems and methods according to present principles may be used in any application in which force sensing is needed, e.g., robotics, including robotic surgery.
Type:
Grant
Filed:
December 13, 2017
Date of Patent:
November 22, 2022
Assignee:
The Regents of the University of California
Inventors:
Michael Yip, Jun Zhang, Alex Tran, Winnie Kuang
Abstract: The presently-disclosed subject matter relates to compositions of dual layer encapsulated cells, dual layer encapsulated stem cells. The presently-disclosed subject matter further relates to methods for improving retention of cells in vivo at a site of injury.
Type:
Grant
Filed:
June 18, 2019
Date of Patent:
November 22, 2022
Assignee:
University of Kentucky Research Foundation
Inventors:
Anuhya Gottipati, Irina Kalashnikova, Ahmed Abdel-Latif, Bradley J. Berron
Abstract: Disclosed is a method for calculating instantaneous sprinkler strength comprising: ensuring that a translational sprinkler (1) maintains a stable operating state, placing b rain barrels (3) at a distance of a metres from the translational sprinkler (1), and moving the translational sprinkler (1) to obtain measurement data; calculating movement time, and the average sprayed water depth received by the rain barrels (3); assuming the distribution form of the amount of water of the translational sprinkler (1), establishing a function relationship between an instantaneous sprinkler strength ht and the movement time t, and calculating a variable in the function relationship; and substituting into the established function relationship a specific numerical value of an instantaneous point in time t of the movement of the translational sprinkler (1), so that the value of ht obtained is a numerical value of the instantaneous sprinkler strength of the translational sprinkler (1).
Type:
Grant
Filed:
November 22, 2016
Date of Patent:
November 22, 2022
Assignee:
Jiangsu University
Inventors:
Xingye Zhu, Junping Liu, Shouqi Yuan, Kun Tian, Jinghong Wan
Abstract: A method for improving a bio-coupling efficiency between a protein and a nucleic acid based on an ?-helix handle includes the following steps. First, the handle carrying the non-natural amino acid (H-tag) is designed. Then, a recombinant expression plasmid encoding a fusion protein containing the H-tag and the protein to be tested is constructed. Subsequently, the fusion recombinant protein containing the non-natural amino acid in the H-tag is expressed and purified. Finally, the non-natural amino acid in the H-tag-fused protein and the coupling group on the nucleic acid substrate are efficiently connected by click chemistry. Thea-helix handle is used to provide a controllable reaction condition on the protein surface for the non-natural amino acid, avoiding the complex structure, charge and polar nanoenvironment around the surface of the protein to be tested.
Abstract: Various embodiments disclosed relate to a substrate. The present disclosure provides a substrate for use in both surface enhanced Raman spectroscopy and surface enhanced infrared spectroscopy. The substrate includes a flexible polymeric membrane, a plurality of metal oxide nanoparticles disposed on the polymeric membrane, and a plurality of metallic nanoparticles directly disposed on a portion of the plurality of metal oxide nanoparticles. The plurality of metal oxide nanoparticles are configured to work synergistically with metal nanoparticles upon exposure of the substrate surface to at least one of visible light or infrared radiation.
Abstract: An interconnect structure may include a graphene-metal barrier on a substrate and a conductive layer on the graphene-metal barrier. The graphene-metal barrier may include a plurality of graphene layers and metal particles on grain boundaries of each graphene layer between the plurality of graphene layers. The metal particles may be formed at a ratio of 1 atom % to 10 atom % with respect to carbon of the plurality of graphene layers.
Type:
Grant
Filed:
April 29, 2020
Date of Patent:
November 22, 2022
Assignees:
Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
Inventors:
Keunwook Shin, Kibum Kim, Hyunmi Kim, Hyeonjin Shin, Sanghun Lee
Abstract: In one embodiment, a method for detecting tremors includes generating electromagnetic fields proximate to an individual's body part with a circuit to generate an eddy current density on a surface of the body part, receiving magnetic fields generated by the eddy current with the circuit that change a resonant frequency of the circuit, sensing the resonant frequency as it changes over time, and determining a movement frequency of the body part from the resonant frequency to quantify tremors in the body part.
Type:
Grant
Filed:
January 15, 2020
Date of Patent:
November 22, 2022
Assignee:
Board of Regents, The University of Texas System
Abstract: Devices, systems and methods for controlling cameras, by processing recorded image frames to record head orientations corresponding to head objects identified for individuals in image frames over a first duration of time, and controlling an orientation of one camera to move to a field of view corresponding to the new direction. In alternate embodiments, the system may conduct further detection processes and generate further stage alerts thereby increasing the system confidence in the new camera direction.