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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
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.
20대 이하 간세포암종의 증례 : 젊은 연령에서 발생한 폐쇄성 황달이 동반된 간세포암종 1예
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 대한간암연구회 2009 대한간암학회지 Vol.9 No.-
Jaundice presents in 19% to 40% of patients with hepatocellular carcinoma (HCC) at the time of diagnosis and usually occurs in later stages. In most situations, it is due to diffuse tumor infiltration of liver parenchyma, hilar invasion, or progressive terminal liver failure (advanced underlying cirrhosis). Obstructive jaundice as the main presenting clinical feature is uncommon. Only 1~12% of HCC patients manifest obstructive jaundice as the initial complaint. Such cases are clinically classified as "icteric type hepatoma", or "cholestatic type of HCC". Identification of this group of patients is clinically important, because surgical treatment may be beneficial. We report a case of icteric HCC developed in young age.
박종규(Jong-Kyu Park),서성호(Seong-Ho Seo),부정숙(Jung-Sook Boo) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
This experimental study is conducted to investigate the effect of a splitter plate, which is set on the back side of a square prism in the uniform flow, Re=1.44×10⁴. 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 fprmation. 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.
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
박종규 ( Jong Kyu Park ) 한국금융연구원 2015 KIF 정책보고서 Vol.2015 No.5
In Korea, concerns over a deflation arose for the first time in the summer of 2014, following three straight years of CPI falling below the target rate. Particularly, prices of agricultural crops continued to show an unusual downward trend, and the CPI fell below 1% amid stumbling oil prices in the latter half of 2014, fueling anxiety over a possible deflation. Some strongly advocated the idea of slashing the policy rate to prevent a deflation. However, according to the analysis of this report, the current deflationary concerns are overrated, and even if CPI falls below 0% for one or two quarters due to falling oil prices and agricultural crop prices, it would be a "good deflation" that lowers production costs as well, not a "bad deflation" that should be avoided at all costs by lowering the interest rates. While an interest rate cut takes substantial time to buoy the price level and the effect remains dubious, it clearly has an adverse effect of worsening household debt problems that have become the greatest threat to the Korean economy. Given this, cutting the interest rate to dispel"deflationary concerns"would not be a viable option at this moment. A more direct and immediate policy response would be to lower energy-related utility prices to keep CPI in the positive territory.
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.