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서희돈,박차훈,양승학 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.1
In this paper we describes a next generation electronic security-light and street-light that is controlled remotely by the pager system. Especially, the time in the system is equal to current time. The used protocol is POCSAG(Post Office Code Standardization Advisory Group). Because PSTN is applied practically in the developmented system, we improve a communication quality and minimize to equipment investment. We can minimize the manufacturing cost and the development cost in the manufacturing of light control system.
신상훈,차승만,황대석,김용덕,김욱규 부산대학교 병원 암연구소 2006 부산대병원학술지 Vol.- No.20
Pulpose : Osteeochondroma is a common benign tumor of the axial skeleton, especially the distal metaphysis of the femur and the proximal metaphysis of the tibia, however, is\ occured rarely on the facial skeleton. Tumors of the mandibular condyle are various and rare. so common interest is a little and its clinical symptoms are similar to the others. therefore, early diagnosis is very difficult. In this study, we will present our cases and review the literatures. Patients and Methods: We studied 17 patients(8 males, 9 females) who were diagnosed a osteochondroma of the mandibular condyle in the department of oral and maxillofacial surgery, Pusan National University Hospital. We reviewed the medical records. Results : Patients' mean age was 30.05 years. The sexual distribution is almost same. Twelve left condyles and five right condyles were involeved. The main symptoms was noise and facial asymmetry. Conclusion : Osteeochondroma is a rare benign tumor of the mandibular condyle. The differential diagnosis is difficult. However, using CT and MRI, we diagnosed early the osteochondroma and treated properly. Thus, we presented the cases of the osteochondroma with the literature reviews.
이선하,차승훈,김재현 경운대학교 산업기술연구소 2001 産業技術硏究論文誌 Vol.3 No.2(A)
The purpose of this study is to investigate treatment efficiency in dyeing wastewater treatment by the high rate aeration system(HRA) and a combination of the HRA with manetized wastewater treatment system(MWS). At the hydraulic retention time of 16hr, 24hr, 30hr, BOD removal efficiencies of HRA system were 93%, 96% and 98%, combination of the HRA with MWS system were 94%, 96.8% and 98.2%, resoectively. In case of COD, at the hydraulic retention time of 16hr, 24hr, 30hr, COD removal efficiencies of HRA system were 66%, 77.1% and 83.1%, combination of the HRA with MWS system were 70.2%, 80.1% and 86.6%, resoectively. The comparison of the HRA and combination of the HRA with MWS, effluent BOD of the former was 22.7㎎/ℓ and the latter was 19.4㎎/ℓ, therefore biological treatment efficiency identified to increase by the MWS
유도선수들의 스포츠자신감 수준이 귀인형태에 미치는 영향
홍재표,차정훈,전승훈 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2
The present study was designed to examine the effect of sport-confidence on attributional perceptions across male and female fencers. Judo athletes reported their sport-confidence, attribution perceptions on Sport-Confidence Inventory. CDSⅡ(Causal Dimension Scale Ⅱ) According to the previous research findings related to the theme of the study, it was hypothesized that the independent variables of trait sport-confidence. state sport-confidence influence the dependent variable of attributional perceptions. and the relationships between the two kinds of variables were examined using two-way ANCOVA. The implications of the study are as follows : Firstly. Trait sport-confidence and state sport-confidence of judo athletes significantly affected the locus of contorl dimension. Secondly. Trait sport-confidence and state sport-confidence of judo athletes significantly affected the stability dimension. Thirdly, Trait sport-confidence and state sport-confidence of judo athletes significantly affected the contro lability dimension.
Association of α-adducin Gly460Trp polymorphism with coronary artery disease in a Korean population
Cha, Seung-Hun,Kim, Hung-Tae,Jang, Yangsoo,Park, Sungha,Kim, Jae-Jung,Song, Min Young,Park, Jin-Hyoung,Ryu, Ha-Jung,Park, Hyun-Young,Yoon, Sung-Joo Kim,Kimm, Kuchan,Lee, Jong-Keuk,Oh, Bermseok Lippincott Williams & Wilkins 2007 Journal of Hypertension Vol.25 No.12
OBJECTIVE: Coronary artery disease is caused by multiple genetic and environmental factors. The disease is also closely associated with cardiovascular conditions such as hypertension. In order to investigate any possible role of hypertension candidate genes in the disease development and progression, we examined the association of the polymorphisms of 31 hypertension candidate genes with coronary artery disease. METHODS: Genetic polymorphisms of 31 hypertension candidate genes were initially screened by resequencing DNA samples from 24 unrelated individuals in a Korean population. Association analysis was performed using 1284 unrelated Korean men, including 749 coronary artery disease subjects and 535 normal healthy controls. RESULTS: We identified a total of 409 single nucleotide polymorphisms including 40 nonsynonymous single nucleotide polymorphisms, 32 insertions/deletions and four microsatellites. Among 40 nonsynonymous single nucleotide polymorphisms, 29 were examined for an association with coronary artery disease. A significant association with coronary artery disease was observed in a polymorphism of the ADD1 gene (Gly460Trp; +29017G/T) (odds ratio 0.71–0.81; P = 0.01–0.04). The same polymorphism was also associated with the number of arteries with significant coronary artery stenosis in the coronary artery disease patients (P = 0.01) as well as the increase in systolic blood pressure (P = 0.02). CONCLUSIONS: The ADD1 Gly460Trp polymorphism is significantly associated with an increased risk of coronary artery disease as well as blood pressure, indicating that ADD1 plays a role in the pathogenesis of coronary artery disease as well as hypertension.
Lee, Seung Hun,Jeong, Myung Ho,Kim, Ju Han,Kim, Min Chul,Sim, Doo Sun,Hong, Young Joon,Ahn, Youngkeun,Chae, Shung Chull,Seong, In Whan,Park, Jong Sun,Chae, Jei Keon,Hur, Seung Ho,Cha, Kwang-Soo,Kim, H Elsevier 2018 Journal of cardiology Vol.72 No.4
<P><B>Abstract</B></P> <P><B>Background</B></P> <P>The correlation between obesity and metabolic syndrome (MetS) and its impact on cardiovascular disease remains unclear. This study aims to investigate the impact of metabolic status and obesity on clinical outcomes of male patients with ST-segment elevation myocardial infarction (STEMI).</P> <P><B>Methods</B></P> <P>Data from the Korea Acute Myocardial Infarction Registry-National Institutes of Health registry were used to evaluate the impact of obesity and MetS on patients undergoing primary percutaneous coronary intervention (PPCI) from November 2005 to November 2015. Patients were grouped according to the presence or absence of obesity and MetS (‘obese−/MetS−’, ‘obese−/MetS+’, ‘obese+/MetS−’, or ‘obese+/MetS+’, respectively). All-cause death and major adverse cardiac events (MACE) were recorded during 12 months of follow-up.</P> <P><B>Results</B></P> <P>A total of 14,357 patients were included. Multivariate analysis showed that the presence of MetS was an independent risk factor for all-cause death (HR 2.08, 95% CI 1.30–3.31, <I>p</I> =0.002) and cardiovascular death (HR 2.44, 95% CI 1.33–4.46, <I>p</I> =0.004) at 12 months among normal weight patients. The protective effect of obesity was observed, compared with the obese−/MetS+ group, in terms of all-cause death (HR 0.50, 95% CI 0.31–0.81, <I>p</I> =0.005) and cardiovascular death (HR 0.52, 95% CI 0.28–0.96, <I>p</I> =0.038; vs. total obese individuals), but it might have disappeared compared with the obese−/MetS− group. The rate of MACE did not differ significantly according to category by obesity and MetS.</P> <P><B>Conclusions</B></P> <P>The obesity paradox has not been observed between obese and normal weight patients without MetS. Risk stratification on the basis of the presence or absence of MetS is not a clinically useful indicator of outcome in obese male patients with STEMI after PPCI.</P> <P><B>Highlights</B></P> <P> <UL> <LI> About a third of obese ST-elevation myocardial infarction (STEMI) patients were metabolically healthy. </LI> <LI> Presence of MetS was not associated with poor prognosis during 12 months after PPCI. </LI> <LI> Risk stratification by MetS was not useful for obese STEMI patients. </LI> <LI> DES and statins are beneficial in obese STEMI individuals independent of MetS status. </LI> </UL> </P>
Lee, Seung Hun,Jeong, Myung Ho,Kim, Ju Han,Kim, Min Chul,Sim, Doo Sun,Hong, Young Joon,Ahn, Youngkeun,Chae, Shung Chull,Seong, In Whan,Park, Jong Sun,Chae, Jei Keon,Hur, Seung Ho,Cha, Kwang-Soo,Kim, H Elsevier 2018 Journal of cardiology Vol.72 No.5
<P><B>Abstract</B></P> <P><B>Background</B></P> <P>Ventricular tachycardia or fibrillation (VT/VF) is a major cause of sudden cardiac death after acute myocardial infarction (AMI). This study aims to investigate the clinical characteristics and outcomes of VT/VF, to identify the variables associated with VT/VF, and to construct a new scoring system.</P> <P><B>Methods</B></P> <P>Patients with relatively preserved left ventricular ejection fraction (LVEF) (≥40%) included in the Korea Acute Myocardial Infarction Registry-National Institutes of Health registry were enrolled in this study. Among 13,109 patients in the registry, a total of 10,334 (78.8%) had relatively preserved LVEF after AMI. Patients were divided into two groups based on whether they experienced life-threatening VT/VF during hospitalization or not. The predictors for VT/VF during hospitalization were assessed. In-hospital mortality and complications were recorded.</P> <P><B>Results</B></P> <P>A total of 358 (3.5%) experienced life-threatening VT/VF. The VT/VF group was at an increased risk of in-hospital mortality (odds ratio 2.99) and cardiac death (odds ratio 3.40). Variables of diagnosis, Killip class, smoking, initial rhythm, left bundle branch block, and LVEF were significant indicators of VT/VF. A new risk score system yielded acceptable discrimination function (<I>c</I>-statistics=0.773).</P> <P><B>Conclusions</B></P> <P>Relatively preserved LVEF patients could still be at risk of life-threatening VT/VF, which is related to a poor prognosis during the admission period. This new scoring system can be adopted to stratify the risk of VT/VF.</P> <P><B>Highlights</B></P> <P> <UL> <LI> 3.5% of acute myocardial infarction patients experienced ventricular tachycardia or fibrillation (VT/VF) even if their left ventricular ejection fraction was preserved. </LI> <LI> Early VT/VF during hospitalization was associated with a poor prognosis. </LI> <LI> The VAMIR score could predict VT/VF, and it yielded acceptable discriminant function. </LI> <LI> The VAMIR score supported the strategies of earlier discharge after revascularization. </LI> </UL> </P>