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박명주 ( Park Myung Ju ),권기성 ( Kwon Ki Seong ),박수현 ( Park Su Hyeon ),현정환 ( Hyun Jung Hwan ),김윤용 ( Kim Yun-yong ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.2
In this study, to improve the disadvantages of the absorber used in the repair and reinforcement of the structure, the penetration depth and the freezing and thawing resistance performance of the concrete strength were analyzed.
표준선량과 저선량 프로토콜의 확대율 변화에 따른 화질과 선량 비교 평가
박비석(Bi-Seok Park),손정우(Jeong-Woo Son),김재광(Jae-Kwang Kim),윤태영(Tae-Young Yun),조명주(Myung-Ju Cho),김동성(Dong-Sung Kim),Dae-Yong Kim 대한인터벤션영상기술학회 2018 대한인터벤션영상기술학회지 Vol.21 No.1
목적 : 혈관 조영 시술시 표준선량과 저선량 프로토콜의 확대율 변화에 따른 화질과 선량을 비교하여 임상적 지표 활용을 목적으로 한다. 재료 및 방법 : 본원의 SIEMENS 장비와 NEMA팬텀, Unfors Xi meter를 사용하였다. 표준선량과 저선량 프로토콜을 사용하였을 때 영상 확대 변화를 주어 30초간 총 5번의 누적선량을 측정후 평균값을 비교하였다. 또한, 두 프로토콜 간 평균 선량 차이에 대한 통계적 유의성을 검증하기 위해 독립표본 t-검정(SPSS t-test)을 하였다. 확대율에 따른 화질 비교를 위하여 공간분해능, 저 대조도 분해능, 와이어분해능을 측정하였다. 결과 : 확대율 변화에 따른 표준선량과 저선량의 누적선량을 비교한 결과, 저선량이 표준선량에 비해 48cm 27.88%, 42cm 39.92%, 32cm 29.68%, 28cm 38.72%, 16cm 11.71%, 11cm 0.83%의 선량 감소율을 보였다. p-value값은 11cm를 제외한 48cm, 42cm, 32cm, 22cm, 16ccm에서 p<0.001로 통계적으로 유의성이 높았다. 화질 변화는 48cm에서의 화질 차이는 없었다. 42cm, 32cm, 22cm에서는 공간 분해능만 저하되었다. 16cm와 11cm의 화질 차이는 없었다. 결론 : 저선량은 표준선량 프로토콜에 비해 48cm, 42cm, 32cm, 22cm에서 평균 34.05±6.14%의 선량 감소율을 나타내는 것에 비해서 16cm는 11.71%로 낮게 나타났고, 11cm에서는 0.83% 감소로 거의 비슷하게 나타났다. 하지만 선량 감소율에 비해 NEMA Phantom을 이용한 화질 비교에서는 42cm, 32cm, 22cm에서만 공간분해능 저하가 나타나고 다른 확대율에서는 화질 변화가 없었다. 결과적으로 20cm 두께의 NEMA Phantom에서의 저선량 프로토콜은 선량 감소율에 비해서 화질의 차이는 표준선량과 크지 않다고 볼 수 있다. Purpose : This study aims to compare the image quality and dose in accordance with the changes of magnification power of standard dose and low dose protocol in angiography to utilize it as clinical index. Matrials and method : This study used SIEMENS equipment, NEMA phantom, Unfors Xi meter. The study conducted comparison on average value after examining accumulated dose during 30 seconds for 5 times by giving variation to magnification power of image when using standard and low dose protocol. An independent sample t-test was performed to verify the statistical significance of the mean dose difference between the two protocols. To compare the image quality in accordance with magnification power, the study measured spatial resolution, low contrast resolution, wire resolution. Result : As the result of comparing accumulated amount of dose, the low dose had decrease rate of dose compared to standard dose(48cm 27.88%, 42cm 39.92%, 32cm 29.68%, 28cm 38.72%, 16cm 11.71%, 11cm 0.83%). Excluding 11cm, all variables were statistically very significant as p<0.001. As for the image quality, there was no image quality difference in 48cm. spatial resolution showed decrease in 42cm, 32cm and 22cm. There was no image quality difference in 16cm and 11cm. Conclusion : When low dose showed average decrease rate of dose about 34.05±6.14% in 48cm, 42cm, 32cm, 22cm compared to standard dose protocol, 16cm had decrease rate as low as 11.71% and 11cm had decrease rate of 0.83% which was similar. However, compared to decrease rate of dose, in image quality comparison using NEMA Phantom, only 42cm, 32cm and 22cm had spatial resolution, and other magnification power did not show difference in image quality. In conclusion, the low dose protocol in NEMA Phantom with 20cm thickness did not have significant difference in image quality with standard dose compared to decrease rate of dose.
김동현,한상범,박주석,한명주,Kim, Dong-Hyun,Han, Sang-Bum,Park, Ju-Suk,Han, Myung-Joo 한국생약학회 1994 생약학회지 Vol.25 No.3
Bacillus P-92 which fermented antler was isolated from intestinal bacteria. The biological activites, carbon clearance and growth activity of lactic acid bacteria, of fermented antler was better than those of untreated antler. The enyzmes activities, ${\beta}-glucosidase,\;{\beta}-glucuronidase$ and tryptophanase, of intestinal bacteria of mice treated with fermented antler were lower than those of mice treated with untreated antler, although those of mice treated with fermented antler or untreated antler were higher than those of control. Biological activity of the antler seems to be increased by fermentation.
넙치, Paralichthys olivaceus 질병 진단 프로그램의 설계 및 구현
한창민 ( Chang Min Han ),정성주 ( Sung Ju Jung ),오명주 ( Myung Joo Oh ),한순희 ( Soon Hee Han ),박정선 ( Jeong Seon Park ) 한국어병학회 2010 한국어병학회지 Vol.23 No.3
This paper presents a computer program for easy and rapid disease diagnosis of olive flounder diseases. To design the program, standard diagnosis process of the 14 olive flounder diseases was first setup, then implemented four-steps diagnosis program. To run program, first input fundamental information such as water temperature, size of the diseased fish. Then sequentially, three categories of key factors for disease diagnosis which include external clinical signs, internal clinical signs and microscopic observations are selected. When a user selects the observed signs of olive flounder from the listed options, the program provides maximum 5 presumed disease candidates in order. The disease information, treatment and prevention methods are provided by connected web server through internet. The program would support fish doctors and farmers by providing easy and rapid diagnosis of diseased olive flounder.
이준 ( Lee Jun ),김영욱 ( Kim Young Wook ),박명주 ( Park Myung Ju ),이병재 ( Lee Byung Jae ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.1
This study investigated the durability performance of concrete to which Polydimethylsiloxane (PDMS) was applied for penetrating water repellency. As the results of study, From test of the resistance to chloride ion penetration, superior salt-resistance was shown in comparison to plain concrete, by the application of PDMS. Experimental results of SM and IM showed more than twofold improved salt-resistance compared to plain concrete.
채수윤(Soo-Yun Chae),이상욱(Sang-Wook Lee),박관우(Kwan-Woo Park),이주승(Jue-Seung Lee),신태석(Tae-Seok Shin),이태우(Tae-Woo Lee),김소연(So-Yeon Kim),김소영(So-Yeong Kim),강명주(Myung-Ju Kang),박찬일(Chan-Il Park),김상중(Sang-Jung Kim 한국컴퓨터정보학회 2014 한국컴퓨터정보학회 학술발표논문집 Vol.22 No.2
성장 가능성이 큰 콘텐츠의 핵심으로 불리는 게임은 매년 높은 매출을 보임에도 불구하고, 사회 내 입지가 좁아지고 있다. 이를 탈피하기 위해, 힐링 콘텐츠를 통한 게임의 단점을 극복하고, 부정적인 인식을 줄이기 위한 게임 개발을 시도하였다. 본 논문에서는 게임 산업의 현재를 분석하고, 힐링 콘텐츠를 활용한 게임 개발배경을 설명하고, 힐링 콘텐츠의 정의와 그 내용을 활용한 퍼즐 어드벤처 게임을 개발하였다.