Abstract: A method of strengthening a component made of a metallic material. The method includes subjecting the component to a mechanical grinding process incorporating a relative motion between a tool and the component forming a gradient structure on the surface of the component, resulting in increased tensile strength of the component. A method of strengthening a component made of a TWIP steel. The method includes subjecting the component made of TWIP steel to a mechanical grinding process incorporating a relative motion between a tool and the component forming a gradient structure containing a surface nanolaminate layer, a shear band layer, and an inner deformation twinned layer, resulting in increased tensile strength of the component. A component made of a TWIP steel containing a gradient structure with a surface nanolaminate layer, a shear band layer, and a deformation twinned layer.
Type:
Grant
Filed:
April 27, 2022
Date of Patent:
September 5, 2023
Assignee:
Purdue Research Foundation
Inventors:
Jie Ding, Qiang Li, Zhongxia Shang, Xinghang Zhang
Abstract: Methods for producing final bodies that contain a fine-grained refractory complex concentrated alloy (RCCA), as well as RCCAs, intermediate materials and final bodies containing the RCCAs, and high-temperature devices formed by such final bodies. Such a method includes providing a precursor with one or more precursor compounds containing elements of an RCCA, reducing the precursor compounds in the precursor via reaction with a reducing agent so as to generate the RCCA and a compound comprising a product of the reaction between the reducing agent and the precursor compounds, generating a solid material that contains at least the RCCA, forming with the solid material a porous intermediate body, and consolidating the porous intermediate body so as to partially or completely remove the pore volume from the porous intermediate body, and in doing so yield either a denser final body or a denser film.
Abstract: A field emitter array (FEA) vacuum transistor is disclosed which includes a substrate and a plurality of nanorods formed of a first polarity dopant on the substrate, wherein the dopant density is between about 1013 cm?3 to about 1015 cm?3.
Abstract: The photoreactor system includes a chamber, a lid, a catalyst coating, and an oxygen supply port. The photoreactor system is configured to process a sample by breaking down organic molecules, such as Tetrahydrocannabinol (THC). The catalyst coating is coupled to an interior surface of the chamber. The photoreactor system includes a mixing blade to agitate the sample. The chamber also includes a baffle substantially covered with the catalyst coating to enhance the turbulent flow of the sample and provide more catalyst coated surface area within the chamber.
Abstract: A method for manufacturing an implantable device is provided. The method includes laser nano-texturing a titanium surface. The method further includes applying an aqueous silver ion solution to form a silver ion complex on the nano-textured titanium surface. The method also includes reducing, using laser-assisted photocatalytic reduction, the silver ion complex to silver ion particles which are immobilized on the nano-textured titanium surface.
Abstract: A method of determining macrotexture of an object is disclosed which includes obtaining a plurality of stereo images from an object by an imaging device, generating a coordinate system for each image of the plurality of stereo images, detecting one or more keypoints each having a coordinate in each image of the plurality of stereo images, wherein the coordinate system is based on a plurality of ground control points (GCPs) with apriori position knowledge of each of the plurality of GCPs, generating a sparse point cloud based on the one or more keypoints, reconstructing a 3D dense point cloud of the object based on the generated sparse point cloud and based on neighboring pixels of each of the one or more keypoints and calculating the coordinates of each pixel of the 3D dense point cloud, and obtaining the macrotexture based on the reconstructed 3D dense point cloud of the object.
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.
Type:
Grant
Filed:
April 25, 2018
Date of Patent:
August 29, 2023
Assignee:
Purdue Research Foundation
Inventors:
Sherry L. Voytik-Harbin, Stacey L. Halum, Sarah Brookes, Hongji Zhang
Abstract: A method of using a HBC device includes enabling electro-quasistatic communication on a transmitter, wherein the enabling electro-quasistatic communication includes receiving an activation signal through an input. The enabling the electro-quasistatic communication additionally includes transmitting a digital data signal to a transmitter logic circuit. The enabling the electro-quasistatic communication further includes modulating an electro-quasistatic carrier signal by the digital data signal using a modulator, thereby producing a modulated electro-quasistatic signal. Additionally, the enabling the electro-quasistatic communication includes transmitting the electro-quasistatic signal from the transmitter logic circuit to a general purpose input output circuit. Furthermore, the enabling the electro-quasistatic communication includes coupling the electro-quasistatic signal on a human body through an electrode, thereby enabling electro-quasistatic communication. The transmitter includes the electrode.
Abstract: This invention generally relates to methods useful for measuring heart rate, respiration conditions, and oxygen saturation and a wearable device that incorporate those methods with a computerized system supporting data collection, analysis, readout and sharing. Particularly this present invention relates to a wearable device, such as a wristwatch or ring, for real time measuring heart rate, respiration conditions, and oxygen saturation.
Type:
Grant
Filed:
September 28, 2020
Date of Patent:
August 29, 2023
Assignee:
Purdue Research Foundation
Inventors:
Jacqueline Callihan Linnes, Orlando Sanguinette Hoilett, Ashlyn Twibell, Hyowon Lee, Rohit Srivastava, Jason D Ummel, Ryan Lindsey
Abstract: A system may receive imaging data generated by an imaging device directed at a heart. The system may receive a first input operation indicative of a selected time-frame. The system may display images of the heart based on the intensity values mapped to the selected time-frame. The system may receive, based on interaction with the images, an apex coordinate and a base coordinate. The system may calculate, based on the apex coordinate and the base coordinate, a truncated ellipsoid representative an endocardial or epicardial boundary of the heart. The system may generate a four-dimensional mesh comprising three-dimensional vertices spaced along the mesh. The system may overlay, on the displayed images, markers representative of the vertices. The system may receive a second input operation corresponding to a selected marker. The system may enhance the mesh by adjusting or interpolating vertices across multiple time-frames.
Type:
Grant
Filed:
December 14, 2021
Date of Patent:
August 29, 2023
Assignee:
Purdue Research Foundation
Inventors:
Craig J. Goergen, Frederick William Damen
Abstract: Apparatus and methods for the measurement and transmission of data pertaining to the tissue of an animal. In one embodiment, there is an implantable device that is wirelessly powered and also wirelessly transmits data. Preferably, the implant measures neuromuscular activity.
Type:
Grant
Filed:
July 31, 2013
Date of Patent:
August 29, 2023
Assignee:
Purdue Research Foundation
Inventors:
Hansraj Singh Bhamra, Jimin Maeng, Chuizhou Meng, Rebecca Bercich, Oren Gall, Young-Joon Kim, Jithin Joseph, William Chappell, Pedro Irazoqui
Abstract: The present disclosure relates to novel synthetic method of making 1, 4-diazo N-heterocycles via intermolecular amphoteric diamination of allenes, and to the compounds made by the novel synthetic method.
Abstract: A system may include a central processing unit (CPU) having a Simultaneous Multi-Threading (SMT) thread/execution model. The system may further include a request processing unit (RPU) having an Out-of-Order Single Instruction Multiple Thread (SIMT) execution model. The CPU may receive a plurality of requests. The CPU may group a portion of the requests in a batch. The CPU may cause the RPU to execute instructions corresponding to each request in the batch. The RPU may execute, with a plurality of threads, the instructions corresponding to the batch of requests in lockstep.
Abstract: A system and methods for artificially intelligent medical procedure assessment and intervention are provided. A system may acquire image data from a camera targeting a location where healthcare is administered. The system may receive sensor data from a sensor attached to a care provider during performance of a procedure. The system may generate gesture features based on the sensor data. The system may generate image features based on the image data. The system may determine, based on the image features and a machine learning model, a step identifier for a step in a multi-step surgical procedure. The system may access text descriptive of an instruction to perform the step. The system may display the text on a display accessible to the care provider. The system may determine, based on the gesture information and a second machine learning model, a performance metric that measures performance of the care provider.
Type:
Application
Filed:
June 24, 2021
Publication date:
August 24, 2023
Applicant:
Purdue Research Foundation
Inventors:
Juan Pablo Wachs, Edgar Javier Rojas-Munoz
Abstract: A system for automatic collection and analysis of digital forensic evidence by a cloud service provider is disclosed. The system utilizes machine learning models to identify and store digital forensic evidence relating to cybercrimes committed using a cloud service. Particularly, if an image or video file uploaded to the cloud service provider is determined to relate to illicit, illegal, or malicious activity, relevant digital forensic evidence is extracted and stored for later provision to law enforcement. The digital forensic evidence that is collected may be used to assist law enforcement in their investigations of criminal activity, as well as aid in the successful prosecution of criminals in court proceedings.
Type:
Grant
Filed:
August 28, 2020
Date of Patent:
August 22, 2023
Assignee:
Purdue Research Foundation
Inventors:
Marcus Kent Rogers, Fahad Esaam Salamh, Umit Karabiyik
Abstract: The present invention generally relates to compounds as a new antibiotic to treat various infections, including infections caused by methicillin-resistant Staphylococcus aureus, vancomycin-intermediate and vancomycin-resistant Staphylococcus aureus, vancomycin-resistant Enterococcus faecalis and Clostridioides difficile. Pharmaceutical compositions and methods for treating those diseases are within the scope of this invention.
Type:
Grant
Filed:
March 29, 2019
Date of Patent:
August 22, 2023
Assignee:
Purdue Research Foundation
Inventors:
Herman O. Sintim, Mohamed Seleem, Clement Opoku-Temeng, Haroon Taj Mohammad, George Naclerio
Abstract: A roll-to-roll manufacturing machine suitable for processing and producing polymer films that contain nanostructures, including but not limited to multifunctional polymer films. The machine applies a liquid polymer on a substrate to form a liquid polymer film, at least partially embeds nanostructures into the liquid polymer film, melt casts a layer of a molten polymer on the liquid polymer film to produce a thin polymer film, organizes the nanostructures in a thickness direction of the thin polymer film comprising applying an electric field to the thin polymer film, aligns the nanostructures in the thin polymer film by simultaneously subjecting the thin polymer film to heat and a field that aligns the nanostructures, and solidifies the thin polymer film to freeze the nanostructures along nanocolumns in a thickness direction of a solidified polymer film resulting therefrom.
Abstract: An optical device, wherein the optical device includes a dielectric layer over a mirror layer. The optical device further includes a plurality of plasmonic nanoparticles over the dielectric layer. Additionally, the optical device includes a protective layer over the plurality of plasmonic nanoparticles.
Type:
Grant
Filed:
February 19, 2020
Date of Patent:
August 22, 2023
Assignee:
Purdue Research Foundation
Inventors:
Piotr Nyga, Alexander V. Kildishev, Sarah Nahar Chowdhury, Alexandra Boltasseva, Zhaxylyk Kudyshev, Vladimir M. Shalaev
Abstract: An arrangement for reducing intraocular pressure includes a pulse signal source, a probe coupling, and at least one electrode. The probe coupling is configured to be supported on a portion of a living eye. The electrodes are supported on the probe coupling. The electrodes are operably coupled to receive a pulse signal from the pulse signal source.
Type:
Grant
Filed:
December 16, 2020
Date of Patent:
August 22, 2023
Assignees:
Purdue Research Foundation, The Jackson Laboratory
Inventors:
Pedro Irazoqui, Simon John, Alex Kokini, Adam Willats, Alexander Chelminski, Matt Matuscak, Gabriel Simon
Abstract: A method of optimizing probe placement in a turbomachine is disclosed which includes establishing a design matrix A of size m×(2N+1) utilized in developing flow properties around an annulus of a turbomachine, where m represents the number of datapoints at different circumferential locations around the annulus, and N represents dominant wavelets generated by upstream and downstream stators and blade row interactions formed around an annulus, wherein m is greater or equal to 2N+1, and optimizing probe positioning by iteratively modifying probe positions placed around the annulus and for each iteration determining a condition number of the design matrix A for each set of probe positions until a predetermined threshold is achieved for the condition number representing an optimal probe layout.