METHOD FOR PREPARING ALBUMIN NANOPARTICLES BASED ON FREE RADICAL OXIDATION

    公开(公告)号:US20210322336A1

    公开(公告)日:2021-10-21

    申请号:US17292455

    申请日:2019-12-16

    Abstract: A method for preparing albumin nanoparticles based on free radical oxidation, comprising the following steps: preparing albumin aqueous solution with an albumin concentration of 1-20 mg/mL; (2) whilst stirring, adding free radical generating agent to the albumin aqueous solution, and continuing to stir and react for 1-60 min at 15-50° C.; the free radicals generated by the free radical generating agent are used for oxidizing the albumin, and the oxidized albumin molecules assemble to form albumin nanoparticles that are mainly bonded by hydrophobic action, thereby obtaining an albumin nanoparticle suspension. The present invention implements improvement by means of the key reaction mechanism of the nanoparticle preparation method and the corresponding design of the finishing process and, compared to the prior art, can effectively solve the problems of the complexity, high cost, and high toxicity of preparing nanoparticles.

    MULTI-DIMENSIONAL MAGNETIC NEGATIVE-STIFFNESS MECHANISM AND MULTI-DIMENSIONAL MAGNETIC NEGATIVE-STIFFNESS VIBRATION ISOLATION SYSTEM COMPOSED THEREOF

    公开(公告)号:US20210293301A1

    公开(公告)日:2021-09-23

    申请号:US17257858

    申请日:2019-10-17

    Abstract: A multi-dimensional magnetic negative-stiffness mechanism and a multi-dimensional magnetic negative-stiffness vibration isolation system composed thereof are provided. The multi-dimensional damping system is composed of a positive-stiffness mechanism, a multi-dimensional negative-stiffness mechanism, a floating frame, a vibration isolated body, and a mounting base. The positive-stiffness mechanism is a traditional elastic element connected to the vibration isolated body and the mounting base, and provides supporting forces in an X direction, a Y direction, and a Z direction, and a basic vibration isolation function. The multi-dimensional negative-stiffness mechanism is composed of at least two negative-stiffness magnetic groups. Each negative-stiffness magnetic group may provide one-dimensional or two-dimensional negative stiffness. Through a series connection of the at least two negative-stiffness magnetic groups, a two-dimensional or three-dimensional negative-stiffness effect may be implemented to improve the vibration isolation performance of the system in multiple dimensions.

    Three-dimensional stacked phase change memory and preparation method thereof

    公开(公告)号:US11127901B1

    公开(公告)日:2021-09-21

    申请号:US16626520

    申请日:2018-11-29

    Abstract: A three-dimensional stacked phase change memory and a preparation method thereof are provided. The method comprises: preparing first horizontal electrodes spaced apart from each other on a substrate; preparing first strip-shaped phase change layers, each having a central gap, between the first horizontal electrodes; preparing first selectors in the central gaps of the first strip-shaped phase change layers; preparing a first insulating layer; preparing second strip-shaped phase change layers at same vertical positions on the first insulating layer; preparing second selectors; then preparing horizontally-oriented insulating holes between the horizontal electrodes; and preparing vertical electrodes between the adjacent insulating holes, thereby forming a multilayer stacked phase change memory with a vertical structure.

    METHOD AND PRODUCT FOR MANUFACTURING TITANIUM ALLOY DUAL-STRUCTURE TURBINE DISK BASED ON PARTIAL HYDROGENATION

    公开(公告)号:US20210285081A1

    公开(公告)日:2021-09-16

    申请号:US16817593

    申请日:2020-03-12

    Abstract: The invention provides a method and a product for manufacturing a titanium alloy dual-structure turbine disk based on partial hydrogenation, which includes the following steps: coating a glass coating on the partial surface of a titanium alloy billet where hydrogen-blocking is required, and sintering the titanium alloy billet coated with the glass coating; performing hydrogenation treatment on the titanium alloy billet, such that the hydrogen concentration at the hydrogenation-required portion reaches the predetermined level; removing the glass coating from the titanium alloy billet; preheating the titanium alloy billet, and then performing high temperature die forging in the forging dies; performing vacuum dehydrogenation treatment on the forged turbine disk to remove hydrogen element inside the forging, so that the hydrogen content is 0.015 wt. % or less.

    METHOD FOR MEASURING DIELECTRIC TENSOR OF MATERIAL

    公开(公告)号:US20210262922A1

    公开(公告)日:2021-08-26

    申请号:US17054170

    申请日:2020-05-15

    Abstract: The disclosure relates to a method for measuring a dielectric tensor of a material. Firstly, a partial conversion matrix Tp and a transmission matrix Tt are determined by a predetermined initial value ε(E) of the dielectric tensor of the material to be measured, thereby obtaining a transfer matrix of an electromagnetic wave on a surface of the material to be measured by the partial conversion matrix Tp, the transmission matrix Tt, and an incident matrix Ti. Then, a theoretical Mueller matrix spectrum MMCal(E) of the material to be measured is determined by the transfer matrix Tm. A fitting analysis is performed on the theoretical Mueller matrix spectrum MMCal(E) and a measured Mueller matrix spectrum MMExp(E) of the material to be measured to obtain the dielectric tensor of the material to be measured. The obtained result is comprehensive and reliable, which is suitable for solving dielectric tensors of various materials.

    CONTAINER-BASED NETWORK FUNCTIONS VIRTUALIZATION PLATFORM

    公开(公告)号:US20210250299A1

    公开(公告)日:2021-08-12

    申请号:US17248519

    申请日:2021-01-28

    Abstract: The present invention relates to a container-based network function virtualization (NFV) platform, comprising at least one master node and at least one slave node, the master node is configured to, based on interference awareness, assign container-based network functions (NFs) in a master-slave-model-based, distributed computing system that has at least two slave nodes to each said slave node in a manner that relations among characteristics of the to-be-assigned NFs, info of load flows of the to-be-assigned NFs, communication overheads between the individual slave nodes, processing performance inside individual slave nodes, and load statuses inside individual said slave nodes are measured.

    METHOD FOR EXTRACTING ROBOT PROCESSING BOUNDARY OF THIN-WALLED PART WITH SMALL CURVATURE BASED ON THREE-DIMENSIONAL POINT CLOUD

    公开(公告)号:US20210174121A1

    公开(公告)日:2021-06-10

    申请号:US17059474

    申请日:2020-06-13

    Abstract: The disclosure discloses a method for extracting a boundary of a thin-walled part with small curvature based on three-dimensional point cloud. The method includes: collecting point cloud data of a part to reduce density of the point cloud data, performing Euclidean cluster to divide into point cloud pieces, obtaining triangular mesh surfaces for each point cloud triangulation; extracting a boundary vertex of each triangular mesh surface to obtain a contour thereof, selecting a contour of the part among all contours; searching with each point on the contour as a center to form a three-dimensional boundary point cloud band; projecting the three-dimensional boundary point cloud band to a plane, orderly extracting two-dimensional boundary points within the plane, and arranging corresponding points in the three-dimensional boundary point cloud band according to an order of ordered boundary points within the plane to obtain ordered boundary points in the three-dimensional boundary point cloud band.

    Hardware-supported 3D-stacked NVM data compression method and system thereof

    公开(公告)号:US10996856B2

    公开(公告)日:2021-05-04

    申请号:US16750655

    申请日:2020-01-23

    Abstract: The present disclosure involves a hardware-supported 3D-stacked NVM data compression method and system, involving setting a first identifier to mark a compression state of written-back data, the method at least comprising steps of: dividing the written-back data into a plurality of sub-blocks and acquiring a plurality of first output results through OR operations among the sub-blocks, respectively, or acquiring a plurality of second output results through exclusive OR operations among the sub-blocks, and determining a compression strategy for the written-back data based on the first output results or the second output results; and setting a second identifier to mark a storing means of the written-back data so that the second identifier is in pair with the first identifier, and configuring a storage strategy for the written-back data that includes at least rotating the second identifier.

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