https://scholar.dgist.ac.kr/handle/20.500.11750/125 2026-04-04T00:09:53Z https://scholar.dgist.ac.kr/handle/20.500.11750/60106 Title: 체성분 분석을 위한 초음파 영상 시스템 및 초음파 영상 시스템의 동작 방법 Author(s): 유천열; 이문환; 황재윤 Abstract: 대상체에 대한 복수의 위치에서 대상체로 초음파 신호를 송신하고 그로부터 반사된 신호를 수신 가능한 스캔 장치를 이용하여, 대상체의 3차원 초음파 영상을 용이하게 생성하는 체성분 분석을 위한 초음파 영상 시스템 및 초음파 영상 시스템의 동작 방법이 개시된다. 초음파 영상 시스템은 대상체를 삽입 가능한 스캔 장치와, 상기 스캔 장치의 일부에 연결된 초음파 탐촉자와, 상기 초음파 탐촉자로 하여금 상기 스캔 장치에 대하여 복수의 위치에서 상기 대상체로 송신 초음파 신호를 발생시키고, 상기 대상체로부터 반사된 반사 초음파 신호를 수신하도록 제어하는 제어부와, 상기 스캔 장치에 대한 복수의 위치에서 각각 수신된 상기 반사 초음파 신호에 기초하여 복수의 2D 초음파 영상을 생성하고, 상기 복수의 2D 초음파 영상에 기초하여 3D 초음파 영상을 생성하는 영상 처리부를 포함할 수 있다. https://scholar.dgist.ac.kr/handle/20.500.11750/59894 Title: 3차원 진단 시스템 Author(s): 황재윤; 류하민; 김지훈 https://scholar.dgist.ac.kr/handle/20.500.11750/59181 Title: ENDOSCOPE-ATTACHABLE ULTRASONIC IMAGING DEVICE Author(s): 이문환; 황재윤; 김희만 Abstract: The present invention relates to an endoscope-attachable ultrasonic imaging device comprising: a body having a space therein; an electric motor embedded in the lower portion of the body to selectively rotate a rotary shaft in response to a driving signal applied from the outside; a first ultrasonic transducer provided in the upper portion of the body and emitting first ultrasonic waves in the corresponding frequency band to a target and then receive first ultrasonic waves reflected by the target; a second ultrasonic transducer provided inside the body and emitting second ultrasonic waves in the relevant frequency band to the target and then receiving second ultrasonic waves reflected from the target; an acoustic mirror member provided inside the body and reflecting ultrasonic waves emitted by the first and second ultrasonic transducers, in the circumferential direction; and a magnetic coupler provided between the electric motor and the acoustic mirror member to rotate the acoustic mirror member around the center of the body by means of rotational power generated by the electric motor. The endoscope-attachable ultrasonic imaging device can be attached to the end of a general endoscope probe to provide 360° ultrasonic images in addition to those of existing endoscopes, thereby providing improved accuracy in lesion diagnosis. https://scholar.dgist.ac.kr/handle/20.500.11750/59161 Title: Cell stimulation and culture platform using ultrasonic hologram Author(s): 이문환; 황재윤 Abstract: According to the present disclosure, there is provided a cell stimulation and culture platform using a ultrasonic hologram, including a culture vessel in which a culture well with an open lower portion is formed; a transmission sheet which is installed to cover a lower surface of the culture vessel and where a biological sample is seated; a platform body that is filled with a liquid medium and an open upper end is covered by the transmission sheet; an ultrasonic transducer that is installed inside the platform body in a state of being spaced apart from the biological sample; and an ultrasonic hologram lens that is installed on the ultrasonic transducer, and spatially modulates the phase of the ultrasonic waves using a surface structure designed to have different height distributions to focus the ultrasonic waves in a set pattern shape on a target surface on which the biological sample is located.