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유산균(L.lactis CBT-8)및 발효 추출물의 Helicobacter pylori 억제 능력
진춘조,박형석,이혜운,김성렬,강동구,이준상,이재동,왕준호 건국대학교 의과학연구소 2002 건국의과학학술지 Vol.12 No.-
Helicobacter pylori infection was the cause of chronic gastritis, duodenal ulcer and gastric MALT lymphoma. The eradication rates of H. pylori using antibiotics are around 80%. Lactobacilli have been demonstrated to have in vivo and in vitro inhibitory effects on H. pylori infection. We aimed to evaluate the inhibitory effect of L. lactis CBT-8 and its extract on H. pylori in human stomach. Thirty-five H. pylori-infected volunteers(30-49 yr)were randomized into two groups which were treated with L. lactis CBT-8 and its extract(Group A n=17) or milk containing L. lactis CBT-8(Group B, n=18). They underwent 13C-urea breath tests before and after treatment. The DOB30 of group A(n=14) was decreased 41.0% after treatment(26.0±4.9 before, 15.3±2.1 after treatment)(p<0.05). the DOB30 of group B(n=13) was decreased 22.3% after treatment(22.0±2.2 before, 17.1±1.7 after treatment)(p<0.05). In conclusion, L. lactis CBT-8 was effective in suppressing H. pylori infection in human stomach.
FIR을 이용한 Demerit-CUSUM 관리도의 수행도 평가
강해운(Hae-Woon Kang),강창욱(Chang-Wook Kang),백재원(Jae-Won Baik),남성호(Sung-Ho Nam) 한국산업경영시스템학회 2009 한국산업경영시스템학회지 Vol.32 No.1
Complex Products may present more than one type of defects and these defects are not always of equal severity. These defects are classified according to their seriousness and effect on product quality and performance. Demerit systems are very effective systems to monitoring the different types of defects. So, classical demerit control chart used to monitor counts of several different types of defects simultaneously in complex products. S.M. Na et al.(2003) proposed the Demerit-CUSUM for the improvement of the demerit control chart performance and Nembhard, D. A. et al.(2001) and G.Y. Cho et al.(2004) developed a Demerit control chart using the EWMA technique and evaluated the performance of the control chart. In this paper, we present an effective method for process control using the Demerit-CUSUM with fast initial response. Moreover, we evaluate exact performance of the Demerit-CUSUM control chart with fast initial response, Demerit-CUSUM and Demerit-EWMA according to changing sample size or parameters.
순환 주기나 Small Shifts의 빠른 변화를 갖는 Cumulative Sum 관리도
강해운(Hae Woon Kang),강창욱(Chang Wook Kang) 한국산업경영시스템학회 2002 한국산업경영시스템학회 학술대회 Vol.2002 No.추계
Cusum control chart are widely used in process with small shifts. Because of cusum control chart has reasonable detection capability for small shifts. But Cusum control chart has unreasonable detection capability for recurring cycles or quickly change of small shifts In Shewhart control charts with recurring cycles or quickly change of small shifts, when a point falls outside Shewhart control limits, the process is out of control. But, if assignable causes occur in process and the points falls inside its control limits, process can be considered in-control. For this situations, Shewhart control charts are used zones method ( ex> A, B, C ... ). ( We say ‘runs rules’ ) This paper investigated cumulative sum control chart for this some situations.
순환주기나 빈번한 작은 이동이 발생하는 공정관리를 위한 Z-CUSUM 관리도
강해운 ( Hae Woon Kang ),강창욱 ( Chang Wook Kang ),백재원 ( Jae Won Paik ) 한국품질경영학회 2004 품질경영학회지 Vol.32 No.2
CUSUM control charts are widely used to monitor processes with small shifts. CUSUM control charts are, however, less effective in detecting for recurring cycles or frequent small shifts in the processes. With Shewhart control charts, we have applied the variety of run rules to check the stability of process in addition to the situations that some points fall outside the control limits. In this paper, we propose the Z-CUSUM control chart for monitoring the process with recurring cycles or frequent small shifts by use of the zone concept as like the Shewhart control charts.
변압기 권선공정에서의 수주 제작품의 단위공정 일정관리 시스템 개발과 다중회귀분석을 이용한 계획 리드타임 산출 및 관리 방안
강대완(Dae-Wan Kang),강창욱(Chang-Wook Kang),강해운(Hae-Woon Kang) 한국산업경영시스템학회 2008 한국산업경영시스템학회 학술대회 Vol.2008 No.하계
Extra-high voltage transformer industry has characteristic of small quantity batch production system by other order processing unlike general mass production system. In this industry, observance of time deadline is very important in market competitive power security and company continued existence. The transformer winding is a process that rolls a coil is coated with an electric insulation material in order to generate the required voltage using the voltage fluctuation. The winding process is very important production process in the extra-high voltage transformer manufacturing industry because winding process is core process that occupy weight about half of whole process and is process that decide current ratio of transformer. This paper proposes a statistical calculation and control method of planned leadtime on the basis of real data and informations for the A company in transformer winding process. Moreover, we develop unit process scheduling system.
변압기 권선공정에서의 수주 제작품의 단위공정 일정관리 시스템 개발과 다중회귀분석을 이용한 계획 리드타임 산출 및 관리 방안
강대완(Dae-Wan Kang),강창욱(Chang-Wook Kang),강해운(Hae-Woon Kang) 한국산업경영시스템학회 2008 한국산업경영시스템학회지 Vol.31 No.3
Ultra-high voltage transformer industry has characteristic of small quantity batch production system by other order processing unlike general mass production systems. In this industry, observance of time deadline is very important in market competitive power security and company continued existence. The transformer winding is a process that rolls a coil is coated with an electric insulation material in order to generate the required voltage using the voltage fluctuation.<BR> The winding process is very important production process in the extra-high voltage transformer manufacturing industry because winding process is core process that occupy weight about half of whole process and is process that decide current ratio of transformer. This paper proposes a statistical calculation and control method of planned leadtime on the basis of real data and informations for the A company in transformer winding process. Moreover, we develop unit process scheduling system.
Kang, Hyun-Jae,Oh, Il-Young,Chung, Jin-Wook,Yang, Han-Mo,Suh, Jung-Won,Park, Kyung Woo,Kwon, Taek Keun,Lee, Hae-Young,Cho, Young-Seok,Youn, Tae-Jin,Koo, Bon-Kwon,Kang, Won-Yu,Kim, Weon,Rha, Seung-Woon W.B. Saunders [etc.] 2012 European heart journal Vol.33 No.21
<P>In the previous COREA-TAXUS trial, a 6-month adjunctive use of celecoxib reduced target-lesion revascularization (TLR) without increased thrombotic risk. We aimed to confirm the effects of 3-month celecoxib in patients receiving drug-eluting stent (DES) implantation in the larger prospective, randomized trial.</P>
( Hae Min Kang ),( Jong Woon Park ),( Eun Jee Chung ) 대한안과학회 2011 Korean Journal of Ophthalmology Vol.25 No.1
A 60-year-old male was referred to the ophthalmologic clinic with aggravated anterior uveitis and corneal edema despite the use of topical and systemic steroids. He had undergone cataract surgery in both eyes 15 years previous. Slit lamp examinations revealed a retained lens fragment in the inferior angle of the anterior chamber, with severe corneal edema and mild anterior uveitis. The corneal edema and uveitis subsided following surgical extraction of the lens fragment. That a retained lens fragment caused symptomatic anterior uveitis with corneal edema 15 years after an uneventful cataract surgery is unique. A retained lens fragment should be considered as one of the causes of anterior uveitis in a pseudophakic patient.
Kang, Ju Hyung,Baik, Haing Woon,Yoo, Seung-Min,Kim, Joo Heon,Cheong, Hae Il,Park, Chung-Gyu,Kang, Hee Gyung,Ha, Il-Soo S. Karger AG 2016 The Nephron Journals Vol.134 No.4
<P>Background: Renin, in addition to its activation of the reninangiotensin system, binds to the (pro)renin receptor (PRR) and triggers inflammatory and fibrogenic signaling in tissue. In addition, aliskiren, a direct renin inhibitor, has been shown to affect IgG metabolism by altering PRR and neonatal Fc receptors (FcRns). Methods: We investigated the effect of aliskiren on proteinuria, glomerular extracellular matrix, expressions of fibronectin, transforming growth factor beta 1 (TGF-beta 1), PRR, FcRn and renal metabolism of IgG in a mice model of anti-glomerular basement membrane glomerulonephritis (anti-GBM GN). Results: IgG deposition and expressions of FcRn and PRR were enhanced at glomeruli and urinary IgG levels increased in anti-GBM GN. Aliskiren attenuated anti-GBM GN with reduction of proteinuria and cortical expressions of fibronectin and TGF-beta 1. In addition, aliskiren suppressed the renal cortical expressions of FcRn and PRR. Aliskiren also reduced the glomerular IgG depositions and the urinary IgG levels albeit with increased circulating serum IgG levels. Conclusion: These results suggest that suppression of FcRn and PRR and regulation of IgG metabolism may be related to the attenuation of anti-GBM GN by aliskiren. (C) 2016 S. Karger AG, Basel</P>