산후 우울감을 보이는 산모에서 나타나는 전두엽 뇌파 비대칭에 대한 음악의 영향

임성진,신철진,Lim, Sung-Jin,Shin, Chul-Jin 대한생물정신의학회 2011 생물정신의학 Vol.18 No.3

Objectives Postpartum blues is known to be a major risk factor for postpartum depression and can be associated with the problems of language skills, behaviors or learning skills of their children. Therefore, it is very important for clinicians to evaluate precisely and control postpartum blues. Recent studies have found that music has an effect on depressive mood and the frontal EEG asymmetry of the patients with depression. The purpose of this study was to find out the effects of music on the frontal EEG asymmetry of the mothers with postpartum blues. Method Among one hundred and seventy mothers assessed with Korean version of the Edinburg Postnatal Depression Scale (EPDS), nine mothers with postpartum blues (EPDS ${\geq}$ 10) as postpartum blues group and nine non-depressive mothers (EPDS < 10) as non-depressive mother group were included. Ten non-labored, non-depressive women were also included as a normal control group. The subjects were evaluated with the State Trait Anxiety Inventory (STAI)-X1, the Visual Analogue Scale (VAS) and the Depression Adjective Checklist-Korean version (K-DACL) and EEG twice before and after the music sesssion with the length of twenty minutes and thirty two seconds. The statistical analyses were done for A1 score (log R - log L) which were computed from the alpha powers at F3 and F4. Results No significant difference was noted in demographic data among all three groups. The postpartum blues group had higher scores in the STAI-X1, the VAS and the K-DACL compared to the other groups at baseline, and their A1 scores were lower than those of only normal controls. There was a statistically significant increase of A1 score only in the postpartum blues group after the music session. Conclusion This study suggests that the mothers with postpartum blues may have a frontal EEG asymmetry which is possibly associated with their depressive mood, and the music session can affect the frontal asymmetry positively.

갑상선 결핵과 동반된 유두 갑상선 암종 환자 1예

임성진 ( Sung Jin Lim ),한문수 ( Mun Soo Han ),이민규 ( Min Kyu Lee ),박동현 ( Dong Heun Park ),권순영 ( Soon Young Kwon ),오경호 ( Kyoung Ho Oh ) 대한갑상선학회 2021 International Journal of Thyroidology Vol.14 No.1

Thyroid tuberculosis with papillary thyroid carcinoma is very rare. The current study shows the case of a 67-year-old female who was admitted to Ansan Hospital of Korea University, with her thyroid nodules showing signs of malignancy under ultrasonography. A histopathological examination proved the coexistence of papillary thyroid carcinoma (PTC) and thyroid tuberculosis (TB). A total thyroidectomy and excision of the enlarged left neck level II lymph node were performed. This report presents a rare case of coexistence of PTC and thyroid TB. Further investigation is needed to evaluate the possible role of PTC in thyroid mycobacterial infection.

전라북도 장수군 오미자 자생지 토양 및 환경 특성

임성진(Sung-Jin Lim),이강수(Kang-Soo Lee),정혜란(Hye-Ran Jung),김영근(Young-Geun Kim),송미선(Mi-Sun Song),조재영(Jae-Young Cho) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.6

전라북도 장수군 오미자 자생지 토양 및 환경특성을 평가하기 위해 식생, 입지환경 및 토양조사를 수행한 결과는 다음과 같다. 오미자는 고도 500~700 m의 준산간지 산록 북서쪽 방향의 계곡에 자생하고 있으며, 경사도는 17.6~36.4%, 토층은 마사토와 부엽토가 쌓여 배수가 용이한 지반이 형성된 지역에 주로 분포하는 것으로 나타났다. 오미자 자생지 식물상은 34과 55종으로 나타났다. 갯버들은 거의 모든 조사지점에서 분포하였으며, 칡, 싸리, 옻나무, 쑥과 같은 식물의 세력이 자생지 내에서 왕성한 것으로 나타났다. 오미자 자생지 토양의 화학적인 지표는 우리나라 일반 오미자 인공재배 토양과 비교시 식물영양물질이 풍부하고 완충능력이 더 우수한 것으로 조사되었다. 따라서 오미자 인공재배 적지 분석 및 기후변화에 따른 재배지역 이동에 따른 재배기술 확립시 자생지 토양특성을 고려한 합리적인 토양관리가 필요할 것으로 판단된다. This study was carried out to investigate soil and environment characteristics of Schizandra Chinensis Baillon habitat as a part of establishment of conservation plan for important medicinal crop resources in Jangsu-gun, Jeollabuk-do. These habitats are mostly located on the slopes of mountains facing northwest at an altitude of 500 m to 700 m with angles of inclination ranging from 17.6 to 36.4%. Average yearly precipitation and temperature of Schizandra Chinensis Baillon habitat were 1,493.4 mm and 16.9℃, respectively. The number of plant species growing in Schizandra Chinensis Baillon habitat was found 55 species. Salix gracilistyla, Lespedeza bicolor, and Artemisia princeps var. were shown higher density and coverage. Chemical quality of Schizandra Chinensis Baillon habitats soils was relatively higher than artificial cultivation soil.

글라우콘의 도전

임성진(Lim, Sung-Jin) 서울대학교 철학사상연구소 2012 철학사상 Vol.46 No.-

『국가』 2권에서 글라우콘은 트라시마코스의 주장을 발전시켜 세차례 소크라테스에게 도전하는데, 정의는 결과 때문에 좋은 것이라고 주장한다. 1) 정의는 서로에게 해를 가하지 말자는 약자들의 약정에서 기원하는데, 불의를 행하고서도 처벌을 받지 않는 최선과 불의를 당하고서도 보복을 할 수 없는 최악 사이에 있다. 2) 모든 사람은 탐욕 때문에 불의를 행하려고 하지만, 처벌 때문에 마지못해 정의를 행한다. 3) 가장 불의한 사람이 가장 행복하기 위해서는 정의의 평판을 함께 가져야 한다. 그러나 글라우콘의 도전에는 문제가 있다. 1) 그가 말하는 정의의 기원은 민주정 일부를 제외하면 불가능하다. 2) 그는 인간이 무한한 욕구 충족을 원한다고 전제할 뿐 이를 입증하지 않으며, 처벌 회피에 논의를 집중하면서 정의로운 질서의 유지를 간과하고, 두 가지 잘못된 전제에서 정의가 결과 때문에 좋은 것이라고 주장한다. 3) 현실적으로 대부분의 사람들은 글라우콘이 말하는 가장 정의로운 사람 또는 가장 불의한 사람이 될 수 없으며, 자연 상태보다는 정의로운 질서 하에서 사는 것이 더 좋기 때문에 불의를 행하지는 않을 것이다. 그럼에도 불구하고 글라우콘의 도전은 사람들이 불의를 행하는 이유를 강력하게 제시하되 정의를 행해야 할 필요성을 적극 요청한다는 점에서 의의가 있다. In Plato’s Republic Ⅱ, Glaucon develops Thrasymachus’ arguments, challenges Socrates three times, and insists that justice is good because of its consequences. 1) Justice originates from the weak’s agreement with each other neither to inflict injustice nor to suffer from it; it is in between the best(to inflict injustice without paying the penalty) and the worst(to suffer from it without being able to get revenge). 2) All people wish to inflict injustice because of pleonexia, but involuntarily inflict justice because of punishment. 3) The unjust person should have a reputation of being just in order to live most happily. But Glaucon’s challenges have some problems. 1) It is not possible for his origin of justice to come into being except in some democracies. 2) He presupposes that human beings want to satisfy their own wants infinitely, but does not prove this, and he overlooks the maintenance of just order while focusing the discussion on the avoidance of punishment, and by using two wrong assumptions, insists that justice is good because of its consequences. 3) Actually, most people cannot be the most just or an unjust man, and will not inflict injustice because it is better to live under just order rather than under the state of nature. Nevertheless, his challenges have great significance because they strongly indicate the reason to inflict injustice and require the necessity to enact justice positively.

스테인리스강 용접부 검사를 위한 분할형 Flexible PAUT 탐촉자의 적용성 검증

임성진(Seong-Jin Lim),송건흠(Geon-Heum Song),박익근(Ik-Keun Park),박태성(Tae-Sung Park) 한국비파괴검사학회 2020 한국비파괴검사학회지 Vol.40 No.2

발전소 튜브 및 파이프 형상은 주변 설비와 사용 환경에 의해 다양한 구조로 형성되어 있다. 용접부의 여러 형상 중에서 분기관은 현재까지 비파괴검사에서 주어진 공간적, 환경적인 원인으로 인해 비파괴검사의 적용이 어려워 재료의 건전성을 확인하는 측면에서 검사한계점을 가지고 있다. 특히, 용접부의 재질이 일반 페라이트 재료에서는 초음파의 입사에 대응하는 최소 접근만으로도 검사 가능한 부재가 일부 존재하지만 오스테나이트 조직의 결정입계로 형성되어 있는 스테인리스 재질의 분기관의 경우에는 두께 방향의 전체 용접부를 체적검사하기에는 어려움 있다. 본 연구에서는 이러한 문제점을 해결하고자 Flexible PAUT 송신/수신용 32CH 탐촉자를 설계/제작하였다. 이 탐촉자는 다양한 곡률을 가진 용접부의 분기관 형태의 검사 대상체에 대하여 단일 탐촉자에서 송, 수신이 가능하도록 개발되었으며 탐촉자의 성능 및 검사대상체에 대한 유용성을 검증하고자 곡률이 형성된 스테인리스 재질의 배관 용접부 시험편을 제작하였고 여기에 대표적인 제작결함 및 인공적인 불연속 지시를 통한 성능 검증을 수행하였다. 이러한 검증을 통해 곡률을 가지는 검사 대상체에 개발된 Flexible PAUT 탐촉자의 타당성 및 유용성을 검증하고자 하였다. In power plants, tube and pipe shapes of various forms are used depending on the surrounding equipment and environment. The different shaped fittings currently employed in weld zones, have limitations when nondestructive tests (NDTs) are conducted to determine material integrity; these limitations are due to their poor NDT applicability arising from spatial and environmental problems. In particular, when the weld zone is formed of a general ferrite material, some members can only be tested by the minimum approach corresponding to the incidence of ultrasonic waves. However, for stainless steel fittings containing austenitic grain boundaries, it is difficult to perform a volumetric test on the entire weld zone in the thickness direction. In this study, a 32-channel probe for flexible phased array ultrasonic testing (PAUT) transmission/reception was designed and fabricated to address this problem. This probe was developed to transmit and receive in a single probe for test objects as fittings in a of weld zone with various curvatures. To investigate the probe performance and the test object usefulness, a stainless-steel pipe weld zone specimen with curvature was fabricated. The performance was evaluated by examining typical natural defects and artificial indications of discontinuity. In this study, we attempted to verify the validity and the usefulness of the flexible PAUT probe developed for a test object with curvature.

의료영상에 디지털 워터마킹 기술

임성진(Sung Jin Lim),문해민(Moon Hae Min),채승훈(Seung-Hoon Chae),반성범(Sung Bum Pan) 한국정보기술학회 2008 Proceedings of KIIT Conference Vol.2008 No.-

심해저 망간단괴 집광기 주변의 유동 특성

임성진(Sung Jin Lim),채용배(Yong Bae Chae),이상호(Sang Ho Lee),정신택(Shin Taek Jeong),조홍연(Hong Yeon Cho) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11

Numerical investigations have been carried out to analyze flow field characteristics around manganese nodule mining device in deep sea. Flow field is largely affected by moving mining device. With the operation of the mining device complicated flow variation remarkably generated from the rear of mining device depends on moving speed of the mining device. Turbulent kinetic energy behind the mining device gradually increases with the velocity of mining device. The nodule particles behavior is also predicted.

피라미드 코어를 가진 샌드위치 판재의 L형 굽힘 성형해석

임성진 ( Sung Jin Lim ),김종호 ( Jong Ho Kim ),정완진 ( Wan Jin Chung ) 한국고무학회 2009 엘라스토머 및 콤포지트 Vol.44 No.4

본 연구에서는 피라미드 형상의 코어재를 갖는 복합판재의 성형해석을 위한 축약모델의 사용이 제안되었다. L형 굽힘성형에 대하여 유한요소해석에 의한 해석을 수행하여 제안된 축약모델의 정확성과 유효성이 검증되었다. 성형해석의 정확성을 향상하기 위하여 코어의 보다 상세한 모델링과 코어성형에 의한 가공경화의 고려가 수행되었다. 변형형상과 성형하중곡선에 대하여 비교하였으며 실험과 좋은 일치를 보였다. 힘-하중 곡선의 비교에서 본 해석이 좌굴후변형거동을 잘 예측할 수 있음을 보였다. In this study, the use of a condensed model is proposed for the simulation of forming of sandwich sheet with pyramid core. A corresponding finite element analysis for L-type bending is carried out to prove the accuracy and the effectiveness. In order to improve the accuracy of forming analysis, more precise modeling of core shape and consideration of work-hardening of previous core forming are carried out. Simulation results are compared with those of experiment. Deformation shape and post-buckling behavior by simulation are in good agreement with those of experiment for the considerable range of deformation. From the comparison of force-displacement curve, it is shown that the proposed model shows good prediction of post-buckling behavior.

의료영상에 적용하는 영상압축과 디지털 워터마킹 기술

임성진(Sung Jin Lim),문해민(Moon Hae Min),채승훈(Seung-Hoon Chae),반성범(Sung Bum Pan) 한국정보기술학회 2008 한국정보기술학회논문지 Vol.6 No.4

Recently, according to the number of internet in widely use and the development of the related application program, the distribution and use of multimedia content(text, images, video, audio etc.) is very easy. The Picture Archiving and Communication System(PACS) was introduced for computerization of medical system and telediagnosis between the hospital. It is becoming more and more possible to create, store, and transmit medical images via PACS. There has been a growing interest in protecting Medical images with an enormous amount of information. This paper proposes an algorithm that utilizes both JPEG 2000 and robust watermarking for medical images. With the proposed algorithm, it takes considerably less time to do JPEG 2000 and watermarking than when they are done separately. Based on the experiment results, it takes 0.72 second for the proposed algorithm and 1.11 second when they are done separately. We confirmed that the proposed algorithm was more faster than when they are done separately.

국내에 사용되어 금지된 유기염소계 농약류의 다중분석법과 모니터링

임성진(Sung-Jin Lim),오영탁(Young-Tak Oh),양지연(Ji-Yeon Yang),노진호(Jin-Ho Ro),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),문병철(Byeong-Chul Moon),박병준(Byung-Jun Park) 한국농약과학회 2016 농약과학회지 Vol.20 No.4