VARIABLE RESISTANCE DEVICE
    2.
    发明申请

    公开(公告)号:WO2023018818A1

    公开(公告)日:2023-02-16

    申请号:PCT/US2022/039982

    申请日:2022-08-10

    摘要: A variable resistance device includes first and second body elements and a force¬ generating system disposed therebetween. The force-generating system includes a resiliently deflectable beam extending relative to the first body element and toward the second body element, an interface element, and a cam projecting relative to the second body element and toward the first body element. The cam presents a cam surface. The interface element shifts along the cam surface upon application of a driving force to at least one of the body elements relative to the other and consequent shifting of the body elements relative to each other, resulting in corresponding bending of the beam and consequent generation of a resistance force by the beam. The cam surface presents a profile that varies along a length thereof, such that the resistance force generated by the beam varies irregularly as the interface element moves along the cam surface.

    NEONATE IV CATHETER TRAINER
    4.
    发明申请

    公开(公告)号:WO2022182532A1

    公开(公告)日:2022-09-01

    申请号:PCT/US2022/016066

    申请日:2022-02-11

    发明人: COYLE, Damon

    摘要: A neonate intravenous (IV) training module for practicing critical nursing skills, wherein the training module comprises an inner core structured to have the size and shape of a neonate appendage, the inner core comprising at least one shallow blood vessel channel formed therein. The training module additionally comprises a removable outer skin glove structured to have the size and appearance of a neonate appendage, the outer skin glove being removably disposable over at least a portion the inner core. The training module further comprises at least one flexible blood vessel tubing that is removably disposable within the at least one blood vessel channel, and the at least one flexible tubing structure to have an outer diameter and wall thickness of a neonate blood vessel.

    MINIATURE 3D POSITION-TO-OPTICAL DISPLACEMENT SENSOR

    公开(公告)号:WO2022046687A1

    公开(公告)日:2022-03-03

    申请号:PCT/US2021/047234

    申请日:2021-08-24

    摘要: A miniature, micrometer-accuracy, three-dimensional (3D) position-to-optical displacement sensor that has at least one extrinsic Fabry-Perot interferometer (EFPI) in Z direction and a series of plasmonic metasurface resonators with distinctive wavelength-selective characteristics in X and Y directions. The interferometer comprises at least one single mode optic fiber for light propagation, and a substrate mirror to create a light interference fringe as a function of distance between the mirror and the distal end of the optic fiber. Each plasmonic resonator is capable of modifying the substrate mirror and comprises an array of multiple unit nanostructure unit cells that are arranged in a two-dimensional (2D) square lattice or array in the X - Y plane. The nanostructure unit cells are preferably inscribed in the top layer of a three-layer thin film via the focused ion beam (FIB).

    THERMAL LIQUID CONTAINER SYSTEM WITH HEAT LOSS PREVENTION LID

    公开(公告)号:WO2021216648A1

    公开(公告)日:2021-10-28

    申请号:PCT/US2021/028313

    申请日:2021-04-21

    发明人: MA, Hongbin

    IPC分类号: A47J41/00

    摘要: A heat loss protection lid for a thermal liquid container system, wherein the heat loss protection lid comprises a central body, a liquid ingress opening formed within the central body, a liquid dispensing opening formed within one of a peripheral edge of the central body or a lip formed around the peripheral edge of the central body and a concealed air intake hole.

    FLUORINATION OF AL2O3 COATING FOR LITHIUM-ION BATTERY

    公开(公告)号:WO2020251710A2

    公开(公告)日:2020-12-17

    申请号:PCT/US2020/032299

    申请日:2020-05-11

    发明人: LIANG, Xinhua YU, Han

    IPC分类号: H01M4/28

    摘要: Improving the performance of cathodes by using surface coatings has proven to be an effective method for improving the stability of Li-ion batteries (LIBs), while a high-quality film satisfying all requirements of electrochemical inertia, chemical stability, and lithium ion conductivity has not been found. In this study, a composite film composed of Al 2 O 3 and AlF 3 layers was coated on the surface of Li 1.2 Mn 0.54 Co 0.13 Ni 0.13 O 2 (Li-rich NMC) based electrodes by atomic layer deposition (ALD). By varying the ratio of AI 2 O 3 and AIF 3 , an optimal coating was achieved. The electrochemical characterization results indicated that the coating with 1 cycle of AIF 3 ALD on 5 cycles of AI 2 O 3 ALD (IAIF 3 -5AI 2 O 3 ) significantly improved the cycling stability and alleviated the voltage attenuation problem of Li-rich NMC based electrodes by suppressing side reactions between the electrolyte and electrode, as well as inhibiting the transformation of layered Li 2 MnO 3 into a spinel-like phase. After 200 cycles of charge-discharge, the discharge capacity retention of LIB half cells based on 1AIF 3 -5AI 2 O 3 coated Li-rich NMC electrodes kept at 84%, much higher than that of the uncoated Li-rich NMC (the capacity retention less than 20%).

    AN EFFICIENT CRYOPRESERVATION DEVICE PREVENTING THE DIRECT CONTACT BETWEEN SAMPLES AND EXTRACELLUAR ICE

    公开(公告)号:WO2020047369A2

    公开(公告)日:2020-03-05

    申请号:PCT/US2019/048986

    申请日:2019-08-30

    IPC分类号: H04B1/10

    摘要: A cryoprotective device protects an aqueous biological material from mechanical damage due to ice formation during cryogenic freezing and/or cryostorage by preventing direct contact of the biological material with cell- damaging large ice crystals, the cryoprotective storage device having a housing with an internal cavity. The housing is configured to receive a freezable medium with the biological material within the internal cavity. The housing includes a semi-permeable membrane. The membrane is impermeable to ice crystals that are larger than an average pore size of the membrane to prevent such ice crystals from passing into the internal cavity from outside the housing, such that ice crystals formed in the medium within the housing have a smaller crystal size from ice crystals formed in the medium outside of the housing. As such, the biological material is protected from mechanical damage generated by direct contact with large ice crystals.