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서산 지역에서의 혼합 신재생에너지 공정의 모듈화 및 적용 연구
안정수,강민형,김 천,서경식,곽승현,최유진,박태진,이재철 한국수소및신에너지학회 2023 한국수소 및 신에너지학회논문집 Vol.34 No.2
This study presents a modularized process of a hybrid renewable energy system that combines photovoltaic power and wind power to supply stable power in a unit area (1 km²). The water electrolysis process and fuel cells process also contributes to the supply of the stable power. The entire system can constantly supply power of 4.39 MW/km². Actual meteorological data is used for simulation.
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신성희,오동주,임홍의,박성미,김응주,이승진,안정천,박창규,서홍석,노영무 대한심장학회 2005 Korean Circulation Journal Vol.35 No.2
Background and Objectives :Studies on the stability of atheromatous plaques, as a determinant of the cause of compli -cations, have been reported. Among the functional features of plaques related with vulnerability, inflammation has emerged as a leading cause of clinical presentation. The purpose of this study was to find the source of the inflam -matory response in the patients with acute myocardial infarction (AMI). Subjects and Methods :Patients with AMI, whose lesion of in either the left anterior descending artery (LAD group, n= 13) or the right coronary artery (RCA group, n= 11), were selected. The levels of interleukin -6 (IL -6) and P -selectin were measured in blood from the aortic rot (A), great cardiac vein (G) and peripheral vein (V). The control group (n= 15) included patients with either stable or variant angina. Results:The levels of IL -6 were 4.77 ± 6.0 (A), 11.32± 7.8 (G) and 4.39 ± 5.0 pg/mL (V) in the LAD group, and 3.64 ± 2.1 (A), 6.05± 4.9 (G) and 3.84 ± 3.2 pg/mL (V) in the RCA group. Unrelated to the infarction related artery, the level of IL -6 in the great cardiac vein was significantly increased in patients with AMI. The percentages of platelet expressed P -selectin were 6.03 ± 7.0 (A), 8.14± 8.1 (G) and 8.83 ± 7.9 (V) in the LAD group and 6.46 ± 8.4 (A), 5.80± 6.0 (G) and 5.9 1± 6.9 (V) in the RCA group. Conclusion :These findings sugest that the generalized inflammatory response is Therefore, systemic therapy, as well as local management for vulnerable plaque, would be required. 배경 및 목적:죽상동맥 경화반의 안정도가 허혈성 심질환의 경과를 결정하는데 염증반응은 죽상동맥경화의 시작과 파열에 따르는 합병증 등에 영향을 미친다. 전신 염증반응은 급성관동 맥 증후군에서 증가되는데, 기원에 대해서는 확립되어 있지않다. 본 연구는 급성 심근경색 환자를 대상으로 염증반응 부위와 경색관련 혈관과의 관련성을 비교하여 염증반응의 기원에 대해서 알아보고자 하였으며, 혈소판 활성화를 함께 측정하였다. 방 법: 우관상동맥(RCA, n=11) 또는 좌전하행지동맥(LAD, n=13)이 병변인 급성심근경색 환자를 대상으로 대동맥기시부(A),큰심장정맥(G), 말초정맥(V)에서 동시에 혈액을 채취하여 ELISA방법으로 Interleukin-6(IL-6)를 측정하고, 혈소판활성화 정도는 P-selectin의 발현 정도를 flow cytometry 방법으로 파악하여 비교하였다. 대조군(n=15)은 LAD에 협착병변이 있는 안정형 협심증 환자와 LAD에서 혈관경련이 증명된 변이형 협심증 환자였다.결 과:IL-6 측정치는 LAD군에서 4.77±6.0 pg/mL(A), 11.32 ±7.8 pg/mL(G), 4.39±5.0 pg/mL(V)이고, RCA군에서는 3.64±2.1 pg/mL(A), 6.05±4.9 pg/mL(G), 3.84±3.2 pg/mL(V)로 병변혈관 위치에 상관 없이 큰심장정맥에서 증가되었다(generalized transcoronary gradient). P-selectin 은 LAD군의 경우6.03±7.0%(A), 8.14±8.1%(G), 8.83±7.9%(V)로 큰심장정맥에서 유의하게 증가되었으나(selective transcoronary gradient) RCA군과 대조군에서는 3곳에서의 측정값이 유사하였다. 결 론: 급성 심근경색증에서 증가된 염증반응은 경색관련 혈관과는 상관없이 관상동맥 순환계 내에서 광범위하게 관찰된다. 파손된 죽상반이 혈전형성을 동반하여 심근경색까지 발생시킬 것인지는 죽상반의 혈전형성 경향에 의해 결정된다. 따라서 불안정 죽상반에 대한 전신적 치료와 국소치료는 병행되어야 할 것이라 생각된다.
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이순천(Lee Soon-Cheon),안정화(An Jeong-Hwa) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.2
The purpose of this study is to help players give full play to their game competency by timely adjusting it before the play, after examining change of competitive anxiety level by sex and technical level of tennis player, and time-to-even. This study selected 90 male and female players (male 40, female 50 / Superior group 44, Inferior group 46 persons) who participated in the 54th Student Championships, Korea as the subject, and used CSAI-2 questionnaires developed by Martens to measure cognitive anxiety, somatic anxiety, and self-confidence. After then, this study checked them by 5-step time-to-even paradigm including one-week, 2days, a day, 2 hours, and 30 minutes before play, which was applied by Jones, Swain, and Cale. This study carried out repetitive analysis of variance by using SPSS statistical program to test the difference of competitive anxiety by sex, technical level, and time. The results are as follows: 1. There wasn't any significant difference between male and female players at the level of cognitive anxiety, somatic anxiety, and self-confidence by sex. 2. There wasn't any significant difference between superior players and inferior players at cognitive anxiety by technical level. But superior player showed higher self-confidence and lower somatic anxiety in comparison with inferior players. 3. The cognitive anxiety and somatic anxiety by time were increased to all the players including male and female players, superior and inferior player when the game was pressing, while the level of self-confidence was gradually reduced to them when the game was pressing. In conclusion, their competitive anxiety supported the theory called by multi-dimensional, so to lower the level of cognitive anxiety and somatic anxiety and to raise the level of self-confidence appeared to be a device which can promote game competency. Accordingly it is necessary to apply different technique to reduce anxiety by level of cognitive anxiety and somatic anxiety with developing a training program which can raise self-confidence.
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