公开(公告)号：US20210315480A1

公开(公告)日：2021-10-14

申请号：US17264949

申请日：2019-07-31

Applicant: THE TRUSTEES OF DARTMOUTH COLLEGE

Inventor： Kofi Odame ,  Justice Amoh

IPC: A61B5/08 ,  A61B5/00 ,  A61B5/145 ,  A61B5/113

Abstract: A device for detecting and quantifying lung function includes a piezoelectric sensor configured for attachment to a mammalian chest wall and to feed signals to an ADC providing digitized signals to a processor. The processor firmware extracts inspiration and expiration times from the digitized signals and generates an I/E ratio from them. The processor has firmware to detect wheezing sounds in the signals. The device has an analog event detector configured to wake-up the processor upon detection of candidate wheeze sounds in the signals. In embodiments, the analog event detector includes bandpass filters coupled to a modeling circuit feeding a correlation circuit, the filters having bandpass adjusted by feedback from a circuit within the analog event detector. In an embodiment, the device uses an FFT with a gated recurrent unit (GRU) with partial reset (GRUPR) neural network to detect wheezes.

公开(公告)号：US20210296983A1

公开(公告)日：2021-09-23

申请号：US17207670

申请日：2021-03-20

Applicant: The Trustees of Dartmouth College

Inventor： Jan S. Rentmeister ,  Jason T. Stauth

IPC: H02M3/07 ,  H02M3/158 ,  G01R19/165

Abstract: A method for controlling a hybrid switched capacitor (SC) converter includes (a) generating control signals for controlling switching devices of the hybrid SC converter, in a manner which regulates one or more parameters of the hybrid SC converter, (b) detecting flying capacitor voltage imbalance in the hybrid SC converter, and (c) in response to detecting flying capacitor voltage imbalance in the hybrid SC converter, generating the control signals in a manner which varies switching state duration of the hybrid SC converter, to move flying capacitor voltage towards balance.

公开(公告)号：US20210264012A1

公开(公告)日：2021-08-26

申请号：US17261691

申请日：2019-07-19

Applicant: THE TRUSTEES OF DARTMOUTH COLLEGE

Inventor： Shrirang MARE ,  David KOTZ ,  Ronald PETERSON

IPC: G06F21/35

Abstract: A system and method for authenticating users of a digital device includes an authentication device attached to an authorized user. The authentication device includes one or more motion sensors and acts as a user identity token. To authenticate with a digital device, the user performs one or more interactions with the digital device using the hand associated with the authentication device. The digital device correlates the inputs received due to the interactions with the user's hand and/or wrist movement, as measured by the authentication device. Access to the digital device is allowed if the inputs and movements are correlated.

公开(公告)号：US20210252773A1

公开(公告)日：2021-08-19

申请号：US17176058

申请日：2021-02-15

Applicant: Trustees of Dartmouth College

Inventor： Ulrike G. K. Wegst ,  Kaiyang Yin ,  Claire Adner ,  Peyton Weber ,  Amalie Hildebrandt Brynjulfsson

IPC: B29C64/106 ,  B29C64/314 ,  B29C64/255 ,  B29C64/393 ,  B29C64/209 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y50/02 ,  B33Y80/00

Abstract: In an aspect, the present disclosure pertains to a method of making a material. Generally, the method includes one or more of the following steps of: (1) placing a mixture having one or more components in a container; and (2) extruding the mixture out of at least one opening of at least one nozzle. In an additional aspect, the present disclosure pertains to a material. In some embodiments, the material includes one or more components. In some embodiments, the one or more components are in the form of a multi-layered structure.

公开(公告)号：US11092562B2

公开(公告)日：2021-08-17

申请号：US15962156

申请日：2018-04-25

Applicant: Dartmouth College

Inventor： Katherine A. Mirica ,  Merry K. Smith

IPC: G01N27/12 ,  D06M13/503 ,  D06M15/687 ,  D06M13/07 ,  D06M13/332 ,  D06M13/335 ,  D06M13/148 ,  D06M13/152 ,  D06M101/32 ,  G01N33/00 ,  D06M101/06

Abstract: Embodiments of the present disclosure pertain to conductive textiles that include a textile component with a plurality of fibers; and metal-organic frameworks associated with the fibers of the textile component in the form of a conductive network. Metal-organic frameworks may have a two-dimensional structure and a crystalline form. Metal-organic frameworks may be conformally coated on the fibers of the textile component. Additional embodiments of the present disclosure pertain to methods of sensing an analyte in a sample by exposing the sample to a conductive textile; and detecting the presence or absence of the analyte by detecting a change in a property of the conductive textile, and correlating the change in the property to the presence or absence of the analyte. The analyte in the sample may reversibly associate with the conductive textile. The association may also result in filtration, pre-concentration, and capture of the analyte by the conductive textile.

公开(公告)号：US20210213329A1

公开(公告)日：2021-07-15

申请号：US17055412

申请日：2019-05-17

Applicant: Trustees of Dartmouth College

Inventor： Emily Wechsler ,  Ryan Halter ,  John A. Batsis

IPC: A63B24/00 ,  A63B21/00 ,  A63B21/055

Abstract: Devices and methods are disclosed for remote clinical monitoring performance of exercises using an instrumented resistance device (100). An example device (100) includes a resistance band (120) having a first end (122) and a second end (124). A first handle (130) connected to the first end (122) and a second handle (140) connected to the second end (124) of the resistance band (120). The device (100) further includes a force sensing assembly (150) positioned between the first handle (130) and the first end (122). The force sensing assembly (150) includes a force sensor (156) connected to the resistance band (120), a microcontroller (182) connected to the force sensor (156) to receive a set of load force measurements from the force sensor (156), and a communication module (184) connected to the microcontroller (182) to transmit the set of load force measurements to a local data receiving device (170).

公开(公告)号：US20210162320A1

公开(公告)日：2021-06-03

申请号：US16636097

申请日：2018-08-09

Applicant: Trustees of Dartmouth College

Inventor： Katherine A. Mirica ,  Xiaoping Zhan ,  Lukasz K. Mendecki ,  Zheng Meng ,  Michael Ko

IPC: B01D15/38 ,  B01D53/02 ,  B01J20/22 ,  C07F1/08 ,  C07F15/06 ,  C07F15/04

Abstract: In some embodiments, the present disclosure pertains to a method for capturing alkenes that includes: associating the alkenes with metal-organic frameworks, where the metal-organic frameworks includes one or more metals and one or more ligands coordinated with the one or more metals, and where the metal-organic frameworks are conductive; and oxidizing the metal-organic frameworks, where the oxidizing results in a capturing of the alkenes by the metal-organic frame-works. Additional embodiments of the present disclosure pertain to a system for capturing alkenes that includes: metal-organic frameworks, where the metal-organic frameworks include one or more metals and one or more ligands coordinated with the one or more metals, and where the metal-organic frameworks are conductive; and an alkene feed source associated with the metal-organic frameworks, where the alkene feed source is configured to deliver an alkene feed to the system.

公开(公告)号：US20210130936A1

公开(公告)日：2021-05-06

申请号：US17251769

申请日：2019-06-11

Applicant: THE TRUSTEES OF DARTMOUTH COLLEGE

Inventor： Margaret WU ,  Ian BAKER

IPC: C22C30/00

Abstract: The disclosure provides high strength high-entropy alloys with compositions (in atomic %) of FeaNibMncAldCreCf where 37-43 atomic %, b is 8-14 atomic %, c is 27-33 atomic %, d is 4-10 atomic %, e is 10-14 atomic %, and f is 0-2 atomic %.

公开(公告)号：US10954315B2

公开(公告)日：2021-03-23

申请号：US15814201

申请日：2017-11-15

Applicant: THE TRUSTEES OF DARTMOUTH COLLEGE

Inventor： Chenfeng Ke ,  Qianming Lin

IPC: C08G83/00 ,  C08B37/16 ,  C08L71/02 ,  A61L27/26 ,  A61L15/60 ,  A61L15/22 ,  A61K47/69 ,  B33Y70/00 ,  A61L27/52 ,  A61L26/00 ,  C08J3/075 ,  C08G65/332 ,  C08J3/24 ,  B33Y80/00 ,  A61L27/18 ,  B33Y10/00 ,  A61L27/20 ,  A61L15/26 ,  A61L15/28 ,  A61K9/00 ,  A61K9/06

Abstract: Provided are supramolecular polypseudorotaxane hydrogel compositions and 3-D structures capable of reversible 3-D structural deformation which include (a) a solvent; (b) an at least partially linear polymer, where the polymer further comprises groups capable of covalent crosslinking between the polymers; (ii) at least one first macrocyclic ring which forms a pseudorotaxane with a polymer in the polymer network; and (iii) at least one second macrocyclic ring that does not form the pseudorotaxane. The hydrogel composition has a viscosity which allows for 3-D printing of the hydrogel to form a 3-D structure, and a storage (elastic) modulus after crosslinking that allows for the 3-D structure to undergo reversible 3-D structural deformation upon change of solvent conditions. Also provided are methods of manufacturing the compositions and 3-D structures.

公开(公告)号：US20210079134A1

公开(公告)日：2021-03-18

申请号：US17017222

申请日：2020-09-10

Applicant: Trustees of Dartmouth College

Inventor： Ivan Aprahamian ,  Sirun Yang ,  Laura L. Jeliazkov ,  Jared D. Harris

IPC: C08F122/16

Abstract: In an embodiment, the present disclosure pertains to a method of changing the glass transition temperature of a polymer. In some embodiments, the polymer includes at least one hydrazone-containing compound. In general, the methods of the present disclosure include one or more of the following steps of: (1) applying light to the polymer; and (2) thereby changing the glass transition temperature of the polymer. In another embodiment, the present disclosure pertains to a polymer having a light-adjustable glass transition temperature. In some embodiments, the polymer includes at least one hydrazone-containing compound.