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권광선 동양대학교 1999 동양대학교 논문집 Vol.5 No.1
This article investigates the theoretical and empirical validity of the key features of the multiplier approach. The approach has been in empirical analysis of money stock control and the impact of monetary policy actions on other economic variables. The important features of this artcle are as follows: (1) The public's desired ratio of currency to demand deposits(hereafter, c - ratio) influences money multiplier. Changes in the trend of the c-ratio almost appear to be stationary, but show upward tendency from January 1979 to January 1982 and downward tendency from September 1991 to October 1992, (2) It is shown that the c-ratio is deeply influenced by the public's demand deposits, (3) The correlation between reserve ratio and demand deposits shows a steadier decrease in the 1990s than 1970s, and it predicts that they apply the reserve ratio to demand deposits and savings deposits, (4) A result from regression analysis shows that the reserve ratio has more effect than the c-ratio. This means that money stocks are more affected by financial intermediary than by public's portfolio selection behavior.
권광선 동양대학교 2010 동양대학교 논문집 Vol.14 No.1
The study was intended to do an regional input-output analysis in YeongJu City so as to analyze the induced efforts by industry sector that could be helpful as a part of local economy revitalization. In the study, the regional input-output table in (I-A^(d))^(-1) type of YeongJu City, which was produced statistically by processing the 2006 Korea Bank Input-Output Table that had been based on the Leontief’s model, was empirically analyzed. This study is to make YeongJu City inter-industry table by bi-proportional procedures(RAS) and location quotient coefficients(LQ). The input-output model provides a framework with which to assess the economic structure associated with selection of a new growth-engine industry into the regional economy. With table, the inter-industry induced effects and linkage effects of industries by sectors onto production, added value and employment were calculated for product, and then prospective industries to be growed were selected. The results of the study can be summarized as follows. The region's high impact potential sectors in terms of linkages effects and multipliers are primary metals, food and beverages, textile and leather.
12주간의 인삼복용이 점증적 최대운동시 중도 정신지체인의 대사관련 호르몬에 미치는 영향
권광선 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2
The purpose of this study was to investigate the effects of 12-weeks ginseng supplementation on metabolic-related hormons (Insulin, Glucagon, Catecholamins) in males and females with moderate mental retardation. Subjects were divided into ginseng supplementation (n=7; males 4, females 3) and placebo (n=7; males 4, females 3) groups and had similar intelligence quotients (IQs). All subjects were classified as a moderate mental retardation status as their intelligent quotients (IQs) was shown from 35 to 49. All subjects were either supplemented a standardized ginseng capsule (containing 300 mg of ginseng in each capsule for the ginseng supplementation group) or ingested a placebo capsule (containing 300 mg of rice powder in each capsule for the placebo group) for 12-weeks. Both types of capsules used in this study had the same size, weight, shape, and color. All subjects in this study were given a 90 days of supplementation either the ginseng or placebo capsules and they were instructed to consume nine capsules per day (3 capsules/meal). Before and after the intervention, each subjects performed incremental cycle ergometer test under the controlled laboratory conditions. All exercise sessions took place on a Monark ergometer (50 RPM), performing 20 minutes of cycling at either 2 kp for males subjects or 1 kp for females subjects. After 20 minutes, work rate was gradually increased (1 kp for males [0.5 kp for females]/every 3 minutes) until exhaustion. Blood samples were obtained before, immediately after and 30 minutes later exercise session. Body weight, %body fat, VO₂ peak did not change with ginseng treatment. Insulin concentration did not induce any significant change with acute and chronic exercise. The concentration of glucagon increased significantly immediately after exercise and returned to near-pre exercise with 30minutes later. Serum epinephrine concentration was significantly increased immediately after exercise and returned to near-pre exercise level with 30minutes later. Interestingly ginseng supplementation enhanced recovers time in epinephrine with 30minutes later. Acute exercise increased serum norepinephrine concentration but ginseng supplementation did not induce any significant change. In conclusion, acute exercise increased metabolic hormone concentration and ginseng supplementation exerts a significant role in recovery time.