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KIM, JUNG O,JEON, YOUNG JOO,KIM, OK JOON,OH, SEUNG HUN,KIM, HYUN SOOK,SHIN, BYOUNG SOO,OH, DOYEUN,KIM, EO JIN,CHO, YUN KYUNG,KIM, NAM KEUN SPANDIDOS PUBLICATIONS 2014 MOLECULAR MEDICINE REPORTS Vol.9 No.6
<P>Silent brain infarction (SBI) is an asymptomatic cerebrovascular disorder. The aim of the present study was to investigate the association between adrenoceptor-α2 (ADRA2) gene polymorphisms and SBI. A total of 361 patients with SBI and 467 healthy control subjects were examined. The polymerase chain reaction was performed to genotype the ADRA2A 1780G>A, ADRA2B 301-303 insertion/deletion (I/D) and ADRA2C 322-325I/D polymorphisms. The frequency of the ADRA2C 322-325I/D polymorphism was significantly different between patients with SBI and control subjects. When interaction analyses were performed for vascular risk factors, the ADRA2C 322-325ID genotype increased the risk for SBI in the presence of hypertension and elevated plasma homocysteine levels. The ADRA2C 322-325ID genotype and plasma homocysteine levels showed a significant synergistic effect for SBI. In addition, the ADRA2A 1780AA genotype was associated with elevated plasma homocysteine levels. Although further analysis of the association between ADRA2 polymorphisms and clinical risk factors of SBI is required, the present study of a limited set of SBI risk factors with ADRA2 polymorphisms provides the first evidence of the involvement of ADRA2 gene family members in the development of SBI. Further studies using larger and more heterogeneous populations are required to validate the association of ADRA2 polymorphisms with SBI.</P>
일사량 데이터 분석을 통한 태양광발전 시스템 개발을 위한 경제성 평가 방법
이성훈(Sung-Hun Lee),최형철(Hyeong-Cheol Choi),이동근(Dong-Keun Lee),김진오(Jin-O Kim) 한국조명·전기설비학회 2011 조명·전기설비학회논문지 Vol.25 No.10
Recently, interests in renewable energy have gradually increased. Of various renewable energy, Photovoltaic system has the properties affected by weather. This paper discusses the economic evaluation based on insolation data analysis. Real insolation data were obtained by radiation measurement device installed in projected photovoltaic system site during 20 months. Obtained real insolation data were standardized using clear day analysis. Standardized data are greater than obtained real insolation data and were used as parameters of RETScreen for the economic evaluation. In results, capacity(30[kW]) of soon cheon is shown the most B/C(1.20). Applied methods have effectively done to develop photovoltaic system.
이상도,권오정,이춘택,조상헌,남귀현,한성구,심영수,김건열,한용철 대한내과학회 1990 대한내과학회지 Vol.38 No.3
It is well known that cigarette smoking induces chronic obstructive lung disease. Recently it has been noted that inflammatory changes of the small airways are the earliest lesions of chronic obstructive lung disease. Impairment of pulmonary function in teenage smokers, or in nonsmokers who are exposed chronically to cigarette smoke, is reported frequently, and after stopping cigarette smoking, restoration of pulmonary function is observed. Many studies are currently being carried out regarding pulmonary function tests for early detection of small airway disease. Different from chronic effect of cigarette smoking, increased resistance of central airways is reported as an acute effect of cigarette smoking, while others report increased resistance of small airways as an acute effect of cigarette smoking. There is many controversies about the major site of acute effect of cigarette smoking. Maximal expiratory flow volume curve, airway resistance, compliance(static and dynamic) and closing volume was measured in healthy medical students without present symptoms of pulmonary disease, with the object of comparison of the sensitivity of pulmonary function test items used for detection of small airway disease in young-age smokers, and to study about the acute effect of cigarette smoking. The results are as follows; 1) Mean age of smokers was 22.9±1.2(21~26) years and the mean of their smoking history was 4.2±1.2(3~7) pack-year. Mean age of nonsmokrs was 22.0±1. 0(21~23) years. 2) Compared to nonsmokers, CV/VC was significantly high(p<0.05) and C1.0/C0.0(Cdyn at repiration rate of 60/min/Cst) was significantly low(p<0.05) in smokers, while other pulmonary function test items showed no significant difference between smokers and and nosmokers. 3) Of 21 smokers, 12 persons(57%) showed significant decrease of Cdyn with an increase of respiration rate, while 2 persons(13%) showed abnormal MMF and other 2 showed abnormal CV/VC among 16 smokers who performed the tests and they all showed significant decrease of Cdyn with an increase of respiration rate. 4) Of 21 smokers, 13 persons(62%) had symptoms of cough or sputum, but there was no significant difference of pulmonary function tests between symptomatic and asymtomatic smokers. 5) After smoking, FEV1/FVC, MMF and PEFR were decreased significantly(p<0.05), and SRAW was increased significantly(p<0.005). 6) After smoking, the decrease of C1.0/C0.0 was significantly larger(p<0.05) in nonsmokers compared to smokers and increase of SRAW was somewhat larger in nonsmokers but without statistical significance.
윤달환(Dal-Hwan Yoon),배동주(Dong-Ju Bae),정예헌(Ye-Heun Jung),O-Hun Keun,Keung-In Choi 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
We have developed the convergence system that can control an appliance based on the mobile phone and an internet. The system can display the GPS information received from the satellite‘ In order to communicate between the mobile phone and the PC, UI(User Interface) have several control functions about the LCD, matrix and motor, so on.