公开(公告)号：US20230391687A1

公开(公告)日：2023-12-07

申请号：US18327589

申请日：2023-06-01

Applicant: PURDUE RESEARCH FOUNDATION

Inventor： RAKESH AGRAWAL ,  EDWIN ANDRES RODRIGUEZ GILL

IPC: C07C4/04 ,  C07C5/327 ,  C07C2/80

CPC classification number: C07C4/04 ,  C07C5/327 ,  C07C2/80

Abstract: Systems and processes for quenching a high-temperature, above atmospheric pressure feed to a lower temperature without the need of any quenching fluid and with the additional benefit of coproducing electric power. The systems and processes provided here result in a simpler quenching process, which is particularly beneficial for quenching streams after high-temperature chemical reactions.

公开(公告)号：US20230389817A1

公开(公告)日：2023-12-07

申请号：US18246487

申请日：2020-10-29

Applicant: Hewlett-Packard Development Company, L.P. ,  Purdue Research Foundation

Inventor： Tianqi Guo ,  Qian Lin ,  Jan Allebach

IPC: A61B5/08 ,  A61B5/113 ,  A61B5/11 ,  G06V40/20 ,  G06V40/10 ,  G06V10/82 ,  G06V10/26

CPC classification number: A61B5/0816 ,  A61B5/113 ,  A61B5/1128 ,  G06V40/20 ,  G06V40/10 ,  G06V10/82 ,  G06V10/273

Abstract: In some examples, a non-transitory computer-readable medium stores executable code, which, when executed by a processor, causes the processor to receive a video of at least part of a human torso, use a neural network to produce multiple vector fields based on the video, the multiple vector fields representing movement of the human torso, and determine a respiration rate of the human torso using the multiple vector fields.

公开(公告)号：US11834408B2

公开(公告)日：2023-12-05

申请号：US17826061

申请日：2022-05-26

Applicant: Purdue Research Foundation

Inventor： Arun K. Ghosh ,  Monika Yadav ,  Andrew Mesecar

IPC: C07D207/26 ,  C07D227/087

CPC classification number: C07D207/26 ,  C07D227/087

Abstract: Inhibitors of SARS-CoV-2 (COVID), pharmaceutical compositions comprising same; and methods of treating a severe acute respiratory syndrome.

公开(公告)号：US20230375492A1

公开(公告)日：2023-11-23

申请号：US18107115

申请日：2023-02-08

Applicant: Purdue Research Foundation

Inventor： Vilas Ganpat Pol ,  Palwinder Kaur

IPC: G01N27/16 ,  G01R31/392 ,  G01N27/07 ,  G01R31/385

CPC classification number: G01N27/16 ,  G01R31/392 ,  G01N27/07 ,  G01R31/385

Abstract: A battery management system (BMS) to detect conditions favorable to thermal runway. The BMS includes Interdigitated Platinum Electrode (IPE) on a substrate. The IPE contains a coating containing PEDOT:PSS (poly(3,4-ethylenedioxythiophene) polystyrene sulfonate). The system has an impedance measuring system (IMS) to measure impedance changes caused in the IPE due to exposure to volatile organic compounds (VOC's) resulting from decomposition of electrolyte in a battery. The impedance changes are indicative of release of the VOC's from the battery signaling a temperature increase in components of the battery. A method of inferring the concentration of VOC's produced by an electrochemical cell. The method includes providing a sensor integrated into the electrochemical cell, the sensor being IPE on a substrate containing a coating containing PEDOT:PSS, recording the impedance response of the sensor to the VOC's released by the electrochemical cell and inferring the concentration of the VOC's.

公开(公告)号：US11821663B2

公开(公告)日：2023-11-21

申请号：US17383177

申请日：2021-07-22

Applicant: Purdue Research Foundation

Inventor： James Edward Braun ,  Eckhard Achim Groll ,  William Travis Horton ,  Orkan Kurtulus ,  Vatsal Shah

IPC: F25B3/00 ,  G01K3/00 ,  G01F23/00 ,  F25B31/00

CPC classification number: F25B31/004 ,  G01F23/0007 ,  G01K3/005

Abstract: A system for measuring oil circulation ratio in a vapor-compression refrigeration system (VCRS) is provided. The system may include an oil separator configured to receive the refrigerant and oil flow from the low-pressure line of the VCRS and output a oil flow and a refrigerant flow. The system may further include an oil collector configured to receive the separated oil flow provided by the oil separator. A valve may control an oil flow from the oil collector to the low-pressure line. A level sensor may measure oil level in the oil collector. The system may close, in response to the oil being at or less than a first level, the valve to collect oil in the oil collector. The system may open, in response to the oil being at or greater than a second level, the valve to release oil from the oil collector to the low-pressure line.

公开(公告)号：US11819946B2

公开(公告)日：2023-11-21

申请号：US18171423

申请日：2023-02-20

Applicant: Purdue Research Foundation

Inventor： Gary J. Cheng ,  Yiliang Liao ,  Yingling Yang ,  Chang Ye

IPC: B23K26/356

CPC classification number: B23K26/356

Abstract: Methods and apparatuses for processing materials to enhancing the material's surface strength, improving the material's cyclic and thermal stability of microstructures, and extend the material's fatigue performance. Embodiments include laser shock peening at material temperatures that are moderately elevated (from the material's perspective) above room temperature. Alternate embodiments include laser shock peening at very cold (cryogenic) material temperatures. Still further embodiments include laser shock peening while covering the surface of the material being processed with an active agent that interacts with the laser energy and enhances the pressure exerted on the surface.

公开(公告)号：US20230365923A1

公开(公告)日：2023-11-16

申请号：US18351488

申请日：2023-07-12

Applicant: Purdue Research Foundation

Inventor： Sherry L. Voytik-Harbin ,  Stacey L. Halum ,  Sarah Brookes ,  Hongji Zhang

IPC: C12N5/00 ,  C07K14/78 ,  C12N5/077 ,  C12N5/074

CPC classification number: C12N5/0068 ,  C07K14/78 ,  C12N5/0062 ,  C12N5/0652 ,  C12N5/0696 ,  C12N2500/34 ,  C12N2533/54

Abstract: The present disclosure provides solid collagen constructs and tissue compositions, wherein a polymerizable collagen solution or suspension is extruded in the presence or absence of cells to formed an aligned architecture comprising solid collagen constructs such as those made with fibrillar collagen. Methods of using and of manufacturing solid collagen constructs and tissue compositions, where the component collagen is solid fibrillar collagen and cells are preferentially aligned, are also provided.

公开(公告)号：US11814720B2

公开(公告)日：2023-11-14

申请号：US17075132

申请日：2020-10-20

Applicant: Purdue Research Foundation

Inventor： Jean Paul Allain ,  Osman J. El-Atwani ,  Juan Jose Pavon Palacio

IPC: C23C14/22 ,  H01J37/30 ,  B82Y40/00 ,  H01J37/304 ,  H01J37/302

CPC classification number: C23C14/221 ,  B82Y40/00 ,  H01J37/302 ,  H01J37/304 ,  H01J2237/317 ,  Y10S977/896

Abstract: A method for fabricating structures includes on a substrate includes providing the substrate having a substrate surface, and generating nanostructures or microstructures on the substrate surface at least in part by exposing the substrate surface to thermal particles from a thermal particle source while irradiating the substrate surface with an ion beam. The generated nanostructures or microstructures have a smaller surface area than the area of incidence of the ion beam or a beam generated by the thermal particle source. The method also includes obtaining a measurement of a characteristic of the substrate surface and adjusting at least one of the thermal particle source and the ion beam based on the measurement.

公开(公告)号：US20230356329A1

公开(公告)日：2023-11-09

申请号：US17893049

申请日：2022-08-22

Applicant: Purdue Research Foundation

Inventor： Yung Shin ,  Corbin Grohol

IPC: B23K26/342 ,  C22F1/00 ,  C22F1/04 ,  B23K26/14

CPC classification number: B23K26/342 ,  C22F1/002 ,  C22F1/04 ,  B23K26/1464

Abstract: Methods of enhancing surface hardness of a quench-sensitive age-hardening material, such as an aluminum alloy, with cryogenic quenching, aluminum alloys produced by the methods, and a laser cladding system with cryogenic quenching capability. Laser cladding or other heat treatment of a quench-sensitive age-hardening material, such as an aluminum alloy, is combined with in-situ cryogenic quenching of the heated area with a spray of cryogenic fluid as the material cools down from the cladding or other heat treatment. The laser cladding system has both a laser emitter to heat a workpiece and a cryogenic nozzle to deliver a cryogenic fluid spray onto the workpiece. The resulting material may have a surface hardness higher than can be achieved without the quenching spray, often approaching or exceeding a T6 temper, without using a solution heat treatment.

公开(公告)号：US11807950B2

公开(公告)日：2023-11-07

申请号：US17734934

申请日：2022-05-02

Applicant: Purdue Research Foundation ,  Palacky University ,  University of Erlangen-Nuremberg

Inventor： Vladimir M. Shalaev ,  Zhaxylyk Kudyshev ,  Alexandra Boltasseva ,  Alberto Naldoni ,  Alexander Kildishev ,  Luca Mascaretti ,  {hacek over (S)}t{hacek over (e)}phán Kment ,  Radek Zbo{hacek over (r)}il ,  Jeong Eun Yoo ,  Patrik Schmuki

IPC: C25D11/26 ,  G02B5/00 ,  C01B21/076

CPC classification number: C25D11/26 ,  C01B21/076 ,  G02B5/008

Abstract: A thermoplasmonic device includes a titanium film and a plurality of titanium nitride tube elements disposed on the titanium film. Each of the titanium nitride tube elements includes an open top and a titanium nitride bottom. Each of the titanium nitride tube elements has titanium nitride tubular middle portion that extends from the open top to the titanium nitride bottom.