The Longitudinal Trend of Cardiac Surgery in Korea from 2003 to 2013

Lee, Kyeong Soo,Kim, Chang Suk,Park, Jong Heon,Hwang, Tae Yoon,Kim, Sang Won,Sim, Sung Bo,Lee, Kun Sei The Korean Society for Thoracic and Cardiovascular 2016 The Korean Journal of Thoracic and Cardiovascular Vol.49 No.sup

Background: The purpose of this study was to investigate longitudinal changes of the utilization of operational and surgical medical care inside and outside a metropolitan area over 10 years, analyzing the residential areas of patients and the locations of medical facilities for major cardiovascular surgery. Methods: Data analysis was conducted by classifying the addresses of patients and the locations of medical care facilities of metropolitan cities and provinces, using data from the National Health Insurance Corporation from January 2003 to December 2013. Results: There is serious concentration of major heart surgery to medical facilities in Seoul; this problem has not improved over time. There were differences in percentages of surgical procedures performed in the metropolitan areas according to major diseases. In the case of Busan and Daegu provinces, at least 50% of the patients underwent surgery in medical facilities in the city, but there are other regions where the percentage is less than 50%. In the case of provinces, the percentage of surgical procedures performed in medical facilities in Seoul or nearby metropolitan cities is very high. Conclusion: Policies to strengthen the regional capabilities of heart surgery and to secure human resources are required to mitigate the concentration of patients in the capital area. Many regional multi-centers must be designated to minimize unnecessary competition among regional university hospitals and activate a win-win partnership model for medical services.

주행 사이클에 따른 전기자동차 배터리 모듈 동력 및 열해석

한욱민(Ukmin Han),최홍석(Hongseok Choi),이호성(Hoseong Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.5

Growth Inhibition of Colon Cancer through Inactivation of STAT3 Pathway by IL-10 and IL-1ra Released from Murine Macrophage

Jin Tae Hong, Dohee Won1, Mi Hee Park, Sun Mi Kown, Miran Jo, Sang-Yoon Nam, Beom Jun Lee, Young Won Yun, Ki-Wan Oh, Sang Bae Han 충북대학교 동물의학연구소 2011 Journal of Biomedical and Translational Research Vol.12 No.4

The objective of this study was to determine the effect of macrophages on growth of human colon cancer cells. The results showed that co-culture of colon cancer cells with macrophages inhibited the growth of colon cancer cells (HCT116 and SW620) depending on the number of macrophages, RAW 264.7 cells, and activated THP-1 cells accompanied by down regulation of pSTAT3 in cancer cells. We also found that expression and release of cancer cell growth inhibitory cytokines, IL-1 receptor antagonist (IL-1ra) and IL-10, was increased in macrophages. Blocking of the STAT3 pathway with specific inhibitor and siRNA of STAT3 abolished the growth of colon cancer cells and expression of IL-1ra and IL-10. In addition, neutralization of IL-1ra and IL-10 with antibodies resulted in reversal of macrophage-induced inhibition of cancer cell growth. These data showed that IL-1ra and IL-10 released from macrophages inhibit growth of colon cancer cells through inhibition of the STAT3 pathway

600W급 IPMSM의 구동특성 변화에 따른 온도 내력 분석

이원식(Wonsik_Lee),고덕화(Duk-Hwa Go),김용태(Yong-Tae Kim),조규원(Gyu-Won Cho),김규탁(Gyu Tak Kim) 대한전기학회 2016 대한전기학회 학술대회 논문집 Vol.2016 No.10

본 논문에서는 동일 출력에서 연기전력 증가 및 형상 변경을 통한 효율 향상 전동기와 기본모델 전동기를 열 등가회로망법을 사용한 열해석을 수행하여 온도 내력을 비교, 분석하였다.

홈 네트워크에서 스케일러블 어플리케이션 서비스 방법

이윤주(Yun-Ju Lee),임태범(Tae-Beom Lim),김경원(Kyung-Won Kim),문재원(Jae-Won Moon),이석필(Seok-Pil Lee) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2

홈 네트워크 상에서 다양한 디지털 기기들 간에 멀티미디어 콘텐츠를 공유/연동하는데 있어, IPTV환경에서 응용프로그램을 비디오, 오디오, 그리고 이미지 파일과 같이 공유/연동할 수 있도록 하는 방법을 제안하고 사용자의 편의성을 증진시키고 시청 환경이 서로 다른 디지털 기기에 동시 적용 가능하며 다양한 시청 환경에 최적화된 사용자 인터페이스를 제공하도록 한다.

인공지능 모델에 따른 한국 프로야구의 승패 예측 분석에 관한 연구

김태훈 ( Tae-hun Kim ),임성원 ( Seong-won Lim ),고진광 ( Jin-gwang Koh ),이재학 ( Jae-hak Lee ) (사)한국빅데이터학회 2020 한국빅데이터학회 학회지 Vol.5 No.2

본 연구에서는 인공지능 모델에 따른 한국 프로야구의 승패 예측 분석에 관한 연구를 했다. 승리할 팀과 해당 팀의 최종 리그 순위를 예측했고, 사용자의 편의를 위해 웹사이트도 구축했다. 각 1·3·5이닝 별로 가장 정확도가 높으면서도 오차가 적은 모델을 최적 모델로 선정해 승·패 결과를 예측했고, 이를 토대로 순위표를 작성했다. 결과표는 2020년 개막인 5월 5일부터 8월 30일까지의 예측 결과를 바탕으로 작성했다. 기아타이거즈가 아닌 다른 구단끼리의 경기는 실제 결과를 사용했다. 머신러닝 모델은 KNN과 AdaBoost가 최적 모델로 선정되었으며, 실제 순위와 비교해 본 결과, 경기가 진행될수록, 예측 결과의 순위 오차가 점점 작아지는 것을 확인했다. 딥러닝 모델은 89%의 정확도를 기록했고, 머신러닝 모델과 마찬가지로 경기를 진행할수록 예측 결과 순위 오차가 작아지는 것을 확인했다. 실험 결과는 한국 프로야구 승·패 결과 예측뿐 아니라 다양한 분야에서 사용할 수 있을 것으로 사료된다. 방송국에서 야구 경기를 중계하는 중 이닝별로 인공지능 알고리즘이 예상한 승·패 여부를 중계화면에 띄울 수 있다. 시청자들에게 새로운 흥미를 일으킬 수 있을 것이고, 나아가 구단의 감독들이 이닝마다 데이터를 분석해 경기 중 유동적으로 승리하기 위한 전략을 세울 수 있을 것으로 기대된다. In this study, we conducted a study on the win-loss predicton analysis of korean professional baseball by artificial intelligence models. Based on the model, we predicted the winner as well as each team’s final rank in the league. Additionally, we developed a website for viewers’ understanding. In each game’s first, third, and fifth inning, we analyze to select the best model that performs the highest accuracy and minimizes errors. Based on the result, we generate the rankings. We used the predicted data started from May 5, the season’s opening day, to August 30, 2020 to generate the rankings. In the games which Kia Tigers did not play, however, we used actual games’ results in the data. KNN and AdaBoost selected the most optimized machine learning model. As a result, we observe a decreasing trend of the predicted results’ ranking error as the season progresses. The deep learning model recorded 89% of the model accuracy. It provides the same result of decreasing ranking error trends of the predicted results that we observe in the machine learning model. We estimate that this study’s result applies to future KBO predictions as well as other fields. We expect broadcasting enhancements by posting the predicted winning percentage per inning which is generated by AI algorism. We expect this will bring new interest to the KBO fans. Furthermore, the prediction generated at each inning would provide insights to teams so that they can analyze data and come up with successful strategies.

태안 5호기 발전기 여자시스템 분석 및 개체

신만수(Man-Su Shin),이주현(Joo-Hyun Lee),류호선(Ho-Seon Ryu),정태원(Tae-Won Jeong) 대한전기학회 2011 대한전기학회 학술대회 논문집 Vol.2011 No.7

P247 : A study on use of complementary and alternative medicine for acne

( Sook Kyung Lee ),( Taek Geun Lee ),( Hyun Hwang Bo ),( Tae Gwang Kwon ),( Se Won Jung ),( Young Seok Lee ) 대한피부과학회 2013 대한피부과학회 학술발표대회집 Vol.65 No.2

Background: Complementary and alternative medicine (CAM) is any practice that has healing effects, but is not based on evidence demonstrated by scientific method. Recently, CAM has been used in various diseases including acne. However, there have been no studies on CAM for acne in Korea. Objectives: The purpose of this study was to analyze the use of CAM in acne patients. Methods: A total of 159 patients with acne were enrolled on the study, and filled out a questionnaire about use of CAM. Results: Overall 87.4% (139/159) of the patients reported the previous or current use of at least one more type of CAM. Cosmetics for acne (100, 22.9%) was most frequently used, followed by diet therapy (81, 18.5%), spa and bath therapies (77, 17.6%), health food supplement (67, 15.3%), skin care shop (64, 14.6%), oriental medicine (38, 8.7%), and aromatherapy (9, 2.1%). The most common reason for using CAM was ``wish to try everything`` (28.6%), and the most common source of information was internet (40.5%). The therapeutic effect of CAM was best with diet therapy (32.1%). The most common side effect of CAM was aggravation of symptoms. The most common monthly cost for CAM was between 50,000 and 100,000 won/person. Conclusion: As our results, we can predict that the use of various types of CAM for acne will become more common. Therefore, dermatologists need to study about benefits and adverse effects of CAM for acne.

리우 올림픽 출전 선수들의 경기력 분석

문원재 ( Moon Won-jae ),박명은 ( Park Myeong-eun ),이태상 ( Lee Tae-sang ) 한국체육대학교 체육과학연구소 2018 스포츠사이언스 Vol.35 No.2

이 연구는 세계태권도연맹이 실시해온 랭킹 시스템 도입에 의해 1~6위까지 랭킹 상위자들에게 올림픽 자동 출전권을 부여함에 있어 리우올림픽 경기 결과를 분석하여 올림픽에서 입상한 선수들과 올림픽 자동출전권을 획득한 선수들과의 비교함으로써 랭킹시스템 제도에 대한 발전 방안을 모색한 결과 다음과 같은 결론을 얻었다. 첫째, -58kg급 체급에는 1위 중국(shuai zhao), 2위 태국(Tawin Hanprab), 3위 한국(Kim TAE-hun), 도미니카 공화국(Luisito PIE) 순으로 나타났다. 1위 입상자 중국선수의 경우 긴 신장을 이용한 몸통기술(10), 얼굴(4)로 나타났으며, 이 체급 자동 출전권 1위를 획득한 이란선수의 경우 예선탈락을 하였다. 둘째, -68kg급 체급에서는 1위 요르단(Ahmad), 2위 러시아(Alexey), 3위 스페인(Joel), 한국(Lee)으로 나타났으며, 1위 입상자 요르단 선수의 경우 몸통(9), 얼굴(8), 주먹(1)로 얼굴 및 몸통 등에서 대등하게 기술을 발휘하며 다른 선수에 비해 얼굴기술이 탁월하게 좋은 것으로 나타났다. 이 체급 1위로 자동출전권을 획득한 벨기에 선수의 경우 메달권에서 러시아선수를 만나 패함으로서 메달 획득을 하지 못하였다. 셋째, -80kg급 체급에서는 1위 코트디부아르(Cheick), 2위 영국(Lutalo), 3위 아제르바이잔(Milad), 튀니지(Oussama)로 나타났으며, 1위 입상자 코트디부아르 선수의 경우 좋은 체격과 선수 특유의 탄력을 이용한 순발력으로 몸통(11), 얼굴(3), 주먹(2)로 나타났다. 이 선수의 경우 공격 기술이 탁월하며 역습기술에서는 득점이 나타나지 않아 공격과 방어기술이 탁월한 선수로 나타났으며 이 체급 랭킹포인트 1위로 자동출전한 이란선수의 경우 9강에서 아제르바이잔 선수를 만나 예선 탈락 하였다. 넷째, +80kg체급에서는 1위 아제르바이잔(Radik), 2위 나이지리아(Abdoulazak), 3위 브라질(Maicon), 한국(Cha)로 나타났으며, 1위 입상자 아제르바이잔 선수의 경우 몸통(4),얼굴(4)로 최고 중량급에서 몸통 및 얼굴기술이 다양하며 방어기술 또한 좋은 것으로 나타났다. 이 체급 랭킹 포인트 1위로 자동 출전한 우주베키스탄 선수의 경우 8강에서 쿠바 복병을 만나 골든포인트에서 패하여 메달을 획득하지 못하였으며 최종대회 1위를 차지한 아제르바이잔 선수의 경우 랭킹포인트 3위로 올림픽 자동출전권을 획득하여 금메달의 영광을 차지하였다. This study was conducted to analyze the results of the Rio Olympic Games in order to grant the Olympic qualification to the top ranking players by the introduction of the ranking system implemented by the World Taekwondo Federation and to acquire the automatic Olympic qualification By comparing with the players, we searched for the development of the ranking system, and the following conclusions were obtained. First, shaai zhao, Tawin Hanprab, Kim TAE-hun, and Luisito PIE ranked in the order of -58 kg. In the case of Chinese athletes who ranked first, body length (10) and face (4) using long elongation were shown. In case of Iran, who won the first place in this weight automatic ticket, Second, in the -68 kg class, Ahmad ranked second, Alexey ranked second, Joel ranked third, and Lee ranked third. In the case of Jordan, (8), and fist (1), showing excellent skill in face technology compared to other athletes. For a Belgian player who won the automatic qualification for the 1st place in this weight category, he could not obtain a medal by losing to a Russian player in the medal ticket. Third, Chekick, Lutalo, Milad, and Oussama ranked first in the -80kg weight class, and in the case of 1st-ranked Cote d'Ivoire, (11), face (3), and fist (2). This player was excellent in offensive skill and counter-attack technique was not good, so attacking and defending skill was excellent player. In the case of Iran, which was automatically ranked in the first place in this weight ranking point, Azerbaijan player was eliminated in the ninth round. . Fourthly, in the + 80kg weight class, it was ranked as 1st in Azerbaijan (Radik), 2nd in Nigeria (Abdoulazak), 3rd in Brazil (Maicon) and in Korea (Cha) 4) showed that body and face skills varied in the top heavyweight, and defensive skills were also good. In the case of Uzbekistan player who was automatically placed in the top of this weight ranking point 1, he was not able to win the medal by defeating Golden Point in Cuba in the quarter-finals. Azerbaijan, ranked first in the final tournament, And won the gold medal.

Chaetoglobosin A, an Inhibitor of Bleb Formation on K562 Cells Induced by Phorbol 12,13-Dibutyrate

KO, HACK-RYONG,KIM, BO YEON,AHN, SOON-CHEOL,OH, WON KEUN,KIM, JIN-HEE,LEE, HYUN SUN,KIM, HWAN-MOOK,HAN, SANG-BAE,MHEEN, TAE0ICK,AHN, JONG-SEOG 한국미생물 · 생명공학회 1998 Journal of microbiology and biotechnology Vol.8 No.6