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박종규,서성호,부정숙,Park Jong-Kyu,Seo Seong-Ho,Boo Jung Sook 한국마린엔지니어링학회 2005 한국마린엔지니어링학회지 Vol.29 No.8
This experimental study is conducted to investigate effects of a splitter plate, which is set on the back side of a square prism in the uniform flow. The Reynolds number is $1.44{\times}10^{4}$ based on the width of the square prism. The measurement of velocity vector and pressure distribution are carried out 4 cases of length in the range of 0.5L to 2.0L with 0.5L interval and 3 cases of Position at 0L, 0.25L, 0.5L, Flow visualization is also executed by smoke-wire method to understand the mechanism of vortex formation The results show the strong vortex shedding patterns and drags are decreased effectively, when the position of splitter plate is 0L. And the drag reduction rate is in inverse proportion to the splitter plate length
박종규 ( Jong Kyu Park ),권순철 ( Soon Cheol Geon ),이상룡 ( Sang Ryong Lee ) 대한경락경혈학회 2005 Korean Journal of Acupuncture Vol.22 No.3
Objectives: This study was designed to investigate the effect of thermal change on face, acupuncturing Yon-gok (KI2). The room temperature adjust 26 ℃ making use of air-conditioner. Methods: A Clinical study was done on 20 males and females who didn`t have any disease. We used IR-5000 to observe the effects of acupuncture at face temperature. Results: Acupuncturing Yon-gok(KI2), the special region on face falls the temperature (n=20) from Avg.=28.1400±0.2603 ℃ to Avg.=27.4910±0.2539 ℃ the special region on chest falls the temperature (n=20) from Avg.=26.9450±0.2591 ℃ to Avg.=26.8690±0.2519 ℃. These effects result at the stimulating `Hwa` point, one of five-shu-point one in the meridian, Yon-gok (KI2) is one of `Hwa`. the stimulating `Hwa` is able to cure fever, headache, and pains. and it has ablility of controlling body temperature, specially, upper region of whole human body. Conclusions: In conclusion. Acupuncturing Yon-gok (KI2) falls the temperature of region on face, Compared with the temperature of region on chest.
박종규 ( Jong Kyu Park ),허규찬 ( Kyu Chan Huh ),신철민 ( Cheol Min Shin ),이혁 ( Hyuk Lee ),윤영훈 ( Young Hoon Yoon ),송경호 ( Kyung Ho Song ),민병훈 ( Byung Hoon Min ),최기돈 ( Kee Don Choi ) 대한소화기학회 2014 대한소화기학회지 Vol.64 No.3
Functional dyspepsia is one of the most common gastrointestinal disorders encountered in clinical practice. Functional dyspepsia is currently defined by Rome III criteria as the chronic dyspeptic symptoms (postprandial fullness, early satiety, epigastric pain or burning) in the absence of underling structural or metabolic disease that readily explain the symptoms. According to the Rome III consensus, functional dyspepsia can be subdivided into postprandial distress syndrome (PDS) and epigastric pain syndrome (EPS). Although the Rome III criteria have been published more than 8 years ago, not much effort has been put into validating these criteria and direct scientific evidence supporting the validity of the subdividing functional dyspepsia into PDS and EPS are lacking. This article is intended to review the validity of the Rome III criteria on the subdivisions of functional dyspepsia, i.e. PDS and EPS. The impact of sleep disorder, Helicobacter pylori-associated dyspepsia, and the emerging drug therapies in functional dyspepsia will also be discussed in this article. (Korean J Gastroenterol 2014;64:133-141)
괴상형 간세포암 간문맥 침범이 동반된 간세포암종에서 간동맥 내 항암제주입요법으로 치료한
박종규 ( Jong Kyu Park ),김영석 ( Young Seok Kim ),김상균 ( Sang Gyune Kim ),정승원 ( Seung Won Jeong ),장재영 ( Jae Young Jang ),최현종 ( Hyun Jong Choi ),문종호 ( Jong Ho Moon ),김홍수 ( Hong Soo Kim ),이문성 ( Moon Sung Lee 대한간암학회 2009 대한간암학회지 Vol.9 No.-
Recent progress in imaging techniques has permitted the diagnosis of hepatocelluar carcinoma (HCC) at an early stage. However, portal vein invasion is still found in 12.5~39.7%. HCC with tumor thrombosis of the portal vein has a poor prognosis. Previous studies showed that the median survival time of patients with HCC with involving portal vein was 2.7~4 months if effective treatment was not administered. Thus, for such HCC with portal vain invasion, an effective therapy that will maintain quality of life is required. We report a case of HCC with portal vein tumor thrombus treated by intra-arterial chemotherapy.
석유화학 장치산업에서 염소저장탱크의 누출에 따른 유해 위험거리 및 누출시간과 흡입용량예측을 위한 분산 모델링
박종규(Jong-Kyu Park),이징연(Jing-Yeon Lee),이태호(Tae-Ho Lee) 한국환경관리학회 2011 環境管理學會誌 Vol.17 No.2
After calculate the density per hour of average maximum surface of the earth from the distance below-wind of chlorine gas, we did modeling experiment harmful danger distance(LOC) from the distance below-wind of chlorine gas about the density; TLV-TWA(Threshold Limit Values-Time Weighted Average), IDLH(Immediately Dangerous to Life or Health)-American legal restriction density used for evaluation of harmful possibility of danger, total release time(Strength), the release quantity per minute and an inhalation dosage(Dose) on depending change of the wind speed and the temperature. According to the result of modeling experiment, harmful danger distance was the following outcome, in case of the wind speed 2m/sec, it was 6.4Km;in case of the wind speed 10m/sec. it was 9Km, so the harmful danger distance responded to the change of the wind speed sensitively. And as a determinate cause of release time of harmful poisonous material is the temperature, in case of 20℃, the release time was 2’10”; in case and 35℃, it was 2’, so the release time increased when the circumference temperature was low. Moment inhalation dosage was, in case of wind speed 2m/sec, more than 1,000,000ppm and in case of 10m/sec, it was about 2,000ppm. Besides we give a result that in case of the circumference temperature 20℃, it was about 200,000ppm but in case of 3 5℃, it was 600,000ppm. So