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    Lamellar grating interferometer having stress-dispersible support structure
    81.
    发明授权
    Lamellar grating interferometer having stress-dispersible support structure 有权

    公开(公告)号：US10119861B2

    公开(公告)日：2018-11-06

    申请号：US15653945

    申请日：2017-07-19

    Applicant: AGENCY FOR DEFENSE DEVELOPMENT

    Inventor： Jaehwan Lee ,  Youngil Kang ,  Jongmin Lee ,  Incheol Kim ,  Dohyun Park

    IPC: G01J3/26 ,  G01J3/02 ,  G01J3/12

    Abstract: The present invention relates to a lamella grating interferometer capable of being employed in a Fourier transform infrared (FTIR) spectrometer, the interferometer including a reflective surface in a circular shape and provided with a fixed portion including fixed mirrors and a movable portion including movable mirrors that are arranged with the fixed mirrors in a crossing manner to form a lamella structure with the fixed mirrors, a plurality of driving units disposed at outside the reflective surface and configured to apply driving forces for moving the movable portion, and a plurality of driving arms connecting the driving units to the movable portion of the reflective surface, respectively, and configured to move the movable portion in response to the driving forces applied by the driving units, wherein each of the plurality of driving arms is formed in a structure of repeating a preset bent shape plural times.

    METHOD OF MANUFACTURING PRESS POLYMER-BONDED EXPLOSIVE USING POLYMER EMULSION AND PRESS POLYMER-BONDED EXPLOSIVE MANUFACTURED USING THE SAME
    82.
    发明申请
    METHOD OF MANUFACTURING PRESS POLYMER-BONDED EXPLOSIVE USING POLYMER EMULSION AND PRESS POLYMER-BONDED EXPLOSIVE MANUFACTURED USING THE SAME 审中-公开

    公开(公告)号：US20180297909A1

    公开(公告)日：2018-10-18

    申请号：US15951476

    申请日：2018-04-12

    Applicant: AGENCY FOR DEFENSE DEVELOPMENT

    Inventor： Min-Gu HAN ,  Ha-Neul PARK ,  Ki-Bong LEE ,  Hyung-Suk KIM ,  Keun-Deuk LEE

    IPC: C06B21/00 ,  C06B25/34

    Abstract: A method of manufacturing a press polymer-bonded explosive, in which a polymer emulsion is used to maximize the efficiency of a process, and a press polymer-bonded explosive manufactured using the same. The method includes a polymer-emulsion-manufacturing step of mixing a monomer of a polymer binder and an emulsifier with a process water and then adding an initiator to thus manufacture a polymer emulsion using a polymerization reaction, a slurry-manufacturing step of mixing a raw material including an explosive and an emulsion breaker with fresh process water to thus manufacture a slurry, an agglomerated-particle-forming step of adding the manufactured polymer emulsion to the manufactured slurry to thus form agglomerated particles in which a surface of the raw material is coated with the polymer binder, and an agglomerated-particle-obtaining step of collecting the agglomerated particles using filtration and drying the collected agglomerated particles.

    System and method for tracking malware route and behavior for defending against cyberattacks
    83.
    发明授权
    System and method for tracking malware route and behavior for defending against cyberattacks 有权

    公开(公告)号：US10097569B2

    公开(公告)日：2018-10-09

    申请号：US15273928

    申请日：2016-09-23

    Applicant: AGENCY FOR DEFENSE DEVELOPMENT

    Inventor： Il-Hoon Jeong ,  Hwa-Seong Lee ,  Chang-Hee Choi ,  Ho-Sang Yun

    IPC: H04L29/06

    Abstract: An attack tracking system includes multiple hosts in which first event data concerning object behavior are collected and pieces of host-based event information are created therefrom; a tracking information database server storing the pieces of host-based event information; a tracking information analysis server creating behavior events by defining malware behavior from the pieces of host-based event information, retrieving targets to be analyzed from the pieces of host-based event information and the behavior events based on a preset input value, creating first tracking contexts for identifying the malware behavior by analyzing the relationship between the pieces of host-based event information and the relationship between a set of the pieces of host-based event information and a set of the behavior events, and creating second tracking contexts tracking malware routes and behavior events between the multiple hosts by analyzing the correlation between the first tracking contexts.

    Calibration method of sensor of a satellite antenna
    84.
    发明授权
    Calibration method of sensor of a satellite antenna 有权

    公开(公告)号：US10031206B1

    公开(公告)日：2018-07-24

    申请号：US15671377

    申请日：2017-08-08

    Applicant: AGENCY FOR DEFENSE DEVELOPMENT

    Inventor： Hyunwook Jo ,  Jongwan Heo ,  Kunsup Kwon ,  Myungjin Jang

    IPC: H01Q3/08 ,  G01S3/00 ,  G01S3/02 ,  G01S19/31 ,  H01Q1/42

    Abstract: A method for calibrating an orientation angle of a rotatable satellite tracking antenna, while changing an elevation angle or an azimuth, includes an elevation encoder calibrating step of setting a value of an elevation encoder measuring an elevation angle of the satellite tracking antenna to zero when an orientation direction of the satellite tracking antenna is parallel to one surface, an azimuth encoder calibrating step of setting a value of an azimuth encoder measuring an azimuth of the satellite tracking antenna to zero when an orientation direction of the satellite tracking antenna is parallel to one direction, and a gyroscope calibrating step of performing calibration such that one axis included in a gyroscope measuring a rotation angular velocity of the satellite tracking antenna is parallel to an azimuth rotation axis of the satellite tracking antenna and the other is parallel to an elevation rotation axis of the satellite tracking antenna.

    APPARATUS AND METHOD FOR CONTROLLING STABILIZATION OF SATELLITE-TRACKING ANTENNA
    85.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING STABILIZATION OF SATELLITE-TRACKING ANTENNA 有权

    公开(公告)号：US20180048062A1

    公开(公告)日：2018-02-15

    申请号：US15665815

    申请日：2017-08-01

    Applicant: AGENCY FOR DEFENSE DEVELOPMENT

    Inventor： Hyun-Wook JO ,  Jong-Wan HEO ,  Myung-Jin JANG ,  Kun-Sup KWON

    IPC: H01Q3/08

    CPC classification number: H01Q3/08 ,  G01S3/38 ,  G01S3/42 ,  H01Q1/1257 ,  H01Q19/134 ,  H01Q19/19

    Abstract: An apparatus and method for controlling stabilization of a satellite-tracking antenna, the apparatus including: an antenna driving unit driving the antenna to track a satellite based on preset satellite position information and position information collected by an inertia sensor and an encoder; a point detecting unit detecting a point where an amplitude of a satellite reception signal is maximum; an elevation measuring unit measuring an elevation value corresponding to the point; and a controller controlling an azimuth motor and an elevation motor to enable the antenna to face the point, when the measured value is out of a first range, the controller controlling the azimuth motor to have an azimuth value corresponding to the point and controlling the elevation motor to have an elevation value less than the measured value corresponding to the point, when the measured value is in the first range.

    METHOD FOR CONTROLLING MICROSTRUCTURE AND TEXTURE OF TANTALUM
    87.
    发明申请
    METHOD FOR CONTROLLING MICROSTRUCTURE AND TEXTURE OF TANTALUM 审中-公开

    公开(公告)号：US20170342537A1

    公开(公告)日：2017-11-30

    申请号：US15538407

    申请日：2015-04-23

    Applicant: AGENCY FOR DEFENSE DEVELOPMENT

    Inventor： Seong LEE ,  Seongho YANG ,  Sungho LEE ,  Hyotae JEONG ,  Yuyeon JO

    IPC: C22F1/18

    CPC classification number: C22F1/18 ,  B21J5/08

    Abstract: A method for controlling the microstructure and texture of tantalum, proposed in the present invention, comprises: a step for performing cold working on a tantalum billet having the shape of a rectangular prism; and a step for performing cold rolling multiple times, wherein the step for performing the cold working includes: a first forging step for performing upset forging and come-back forging on the tantalum billet multiple times in different directions, the upset forging being performed to press two surfaces of the tantalum billet in order to make the two surfaces close to each other and the come-back forging being performed to restore the tantalum billet to the original shape; and a second forging step for performing wedge forging and come-back forging on the tantalum billet multiple times in different directions, the wedge forging being performed to press two edges located in a diagonal direction of the tantalum billet and parallel to each other in order to make the two edges close to each other and the come-back forging being performed to restore the tantalum billet to the original shape.

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