Method for amino acid analysis and system for amino acid analysis

    公开(公告)号:US11867671B2

    公开(公告)日:2024-01-09

    申请号:US16721185

    申请日:2019-12-19

    Inventor: Masami Shibukawa

    CPC classification number: G01N30/54 G01N2030/522

    Abstract: The present invention provides a highly versatile method for amino acid analysis, the method enabling separation and analysis of amino acids in a sample with high precision in a shorter time. This method is a method for amino acid analysis, the method including a step of allowing a sample containing a plurality of amino acids to flow together with an eluent 2 through a separation column 4 packed with a cation exchange resin, thereby separating the amino acids, and a step of detecting the separated amino acids, wherein the eluent 2 is an eluent containing a divalent or higher inorganic acid, a cation source, and water, and having a pH of 5.0 or lower, and the sample is allowed to flow through the separation column 4 heated by applying a temperature gradient including a temperature region of 100° C. or higher.

    MACHINING STATE INFORMATION ESTIMATION DEVICE AND MACHINING STATE DIAGNOSIS APPARATUS

    公开(公告)号:US20220283564A1

    公开(公告)日:2022-09-08

    申请号:US17633306

    申请日:2020-08-07

    Abstract: A machining state diagnosis apparatus (10) includes a machining state information estimation device (1), a learning information storage (11) storing information on relationship between estimated machining state information and actual machining state information, and a machining state diagnosis unit (12) diagnosing a machining state in actual machining using control information, based on machining state information obtained during the actual machining, machining state information estimated based on corresponding control information by the machining state information estimation device (1), and the relationship information stored in the learning information storage 11. The machining state information estimation device (1) includes an information storage (2) storing the control information and information on a workpiece and a tool, a machining state information estimator (3) estimating machining state information in relatively moving the workpiece and the tool, based on the information on the workpiece and the tool and the control information, and an image data generator (4) generating image data based on the estimated machining state information.

    MICROSTRIP ANTENNA AND INFORMATION APPARATUS

    公开(公告)号:US20220029306A1

    公开(公告)日:2022-01-27

    申请号:US17494237

    申请日:2021-10-05

    Abstract: A microstrip antenna corresponds to a rectangular resonator. The resonator has first and second sides being parallel to a first direction and having a length corresponding to 3/2 wavelength, and has a shape notched from each of the first and second sides toward a center of the resonator. The antenna includes: a first portion constituting a periphery of the notched shape; and second and third portions facing each other across the first portion. The notched shape allows the first portion to contribute to a radiation characteristic. The first, second, and third portions each have a length corresponding to ½ wavelength in the first direction. The first portion has a width in the second direction that is narrower because of the notched shape than that of the second and third portions. The second or third portion is provided with a feeding point.

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