[SCIE]Extending the Observational Frequency Range for Gravitational Waves in a Pulsar Timing Array

박찬 | Astrophysical Journal | 2022

We provide an observation method for gravitational waves using a pulsar timing array to extend the observational frequency range up to the rotational frequency of pulsars. For this purpose, we perform an analysis of a perturbed electromagnetic wave in perturbed spacetime from the field perspective.

[SCIE]Phase transitions of the SIR Rumor spreading model with a variable trust rate

HYOWON SEO,SUN-HO CHOI,유민하 | DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B | 2022

We study a threshold phenomenon of rumor outbreak on the SIR rumor spreading model with a variable trust rate depending on the populations of ignorants and spreaders.

[SCIE]Denoising of pediatric low dose abdominal CT using deep learning based algorithm

JeongEun Lee,Sun Kyoung You,박형석,전기완 | PLoS One | 2022

To evaluate standard dose-like computed tomography (CT) images generated by a deep learning method, trained using unpaired low-dose CT (LDCT) and standard-dose CT (SDCT) images.

Sangwoon Yun,안치영 | East Asian Journal on Applied Mathematics | 2022

A mathematical model in the form of a nonconvex constrained minimisation problem, aimed to determine the 3D position of LV contours using 2D echocardiography data for the entire cardiac cycle is proposed. It can be considered as a quadratically constrained quadratic program in terms of one of four variables with the others fixed.
The model is solved by a proximal block coordinate descent method with cyclic order and the convergence of the algorithm is proved by using the Kurdyka-Lojasiewicz property.

[비SCIE]객체 검출과 한글 손글씨 인식 알고리즘을 이용한 차량 번호판 문자 추출 알고리즘

나민원,박윤영,최하나 | Journal of Information Technology Services(한국IT서비스학회지) | 2021

Recently, with the development of IT technology, unmanned systems are being introduced in many industrial fields, and one of the most important factors for introducing unmanned systems in the automobile field is vehicle licence plate recognition(VLPR).

[비SCIE]A STUDY ON PUPIL DETECTION AND TRACKING METHODS BASED ON IMAGE DATA ANALYSIS

SANGWON YOON,김민중,최하나 | Journal of the Korean Society for Industrial and Applied Mathematics(한국산업응용수학회지) | 2021

In this paper, we will introduce the image processing methods for the remote pupillary light reflex measurement using the video taken by a general smartphone camera without a special device such as an infrared camera.

Byung Hyun Lee,Byung Sik Kim,Jang Hyun Sung,Se Jin Jung,권오규 | Journal of the Korean Physical Society | 2021

A Korean demand survey indicates that the number of stations (1070) that the government currently plans to install does not satisfy the demand (1371) for charging stations. Therefore, this study aims to identify the planned 1070 stations’ proper locations across the nation and select the same number out of 1371 points by deciding the optimal number and locations required by the Korean government to implement their strategy.

[비SCIE]매개중심성 분석을 이용한 호우에 의한 교통영향 연구

권오규,김병식,정승권 | Journal of the Korean Data and Information Science Society(한국데이터정보과학회지) | 2021

본 연구에서는 특정 지역의 교통기능 상실이 주변 지역에 미치는 영향을 측정하는 기법을 제시하였다.

R. Abbott et al.,김환선,손재주,오상훈,오정근 | Physical Review D | 2021

We report results of a search for an isotropic gravitational-wave background (GWB) using data from Advanced LIGO’s and Advanced Virgo’s third observing run (O3) combined with upper limits from the earlier O1 and O2 runs.

R. Abbott et al,김환선,손재주,오상훈,오정근 | Astrophysical Journal | 2021

We present results of three wide-band directed searches for continuous gravitational waves from 15 young supernova remnants in the first half of the third Advanced LIGO and Virgo observing run.