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Trend Analysis of the Characteristics of Typhoon Parameters around Korea
Insik Chun,Youngmin Oh,Kiho Chang 한국연안방재학회 2015 한국연안방재학회지 Vol.2 No.3
Increases in sea water temperature along typhoon tracks due to global warming are known to intensify typhoons. Moreover, there has been concern that global climate change may alter other typhoon parameters, including forward speed and track. In the present study, several west–east transect lines were preset around the Korean Peninsula to allow sampling of the parameters of typhoons crossing the transect lines. A tension spline interpolation technique was applied to the best-track data of the Regional Specialized Meteorological Center (RSMC) Tokyo of the WMO. Then, a trend analysis was conducted using the Mann-Kendall method for representative annual typhoons for three parameters: central pressure, maximum sustained speed, and forward speed. Furthermore, recent change in the frequency of westward typhoons was also analyzed. The results demonstrate that the central pressure exhibits an annually decreasing trend with a probability of 86.5%, at least in the prescribed southernmost transect line. However, this probability decreased drastically toward the north. The maximum sustained wind speed of the annual representative wind exhibits a similar pattern to the central pressure, but with an increasing trend. In contrast, the forward speed exhibits more significant decreasing trends, particularly along the land-based transect lines, with probabilities exceeding 80%. Finally, the number of westward typhoons was found to have increased considerably after 2000; moreover, these typhoons maintained their power much further north than previous westward typhoons
Must-Have Items: A Position-Oriented Product is More Appealing in Korea than Canada
Chang Soo Kim,Insik Jeong 한국국제경영학회 2015 國際經營硏究 Vol.26 No.2
본 연구는 동서양에 있어 지위지향제품의 효과를 살펴 보았다. 한국인은 유교사상을 바탕으로 수 직적 계층 (또는 서열)에 익숙하고, 그에 따른 지위근거확장사고를 하기 때문에, 제품 구매시 자신 의 지위를 고려하는 것으로 나타났다. 캐나다인과 비교하여, 한국인들은 개인의 지위와 제품간의 관계를 추정하는 성향 (예: CEO는 지위에 맞는 브랜드 제품을 소유했을 것이라는 믿음)을 높게 보였고, 지위지향제품 (예: CEO의 시계)에 대해 더 높은 수준의 태도를 보였다. 또한 지위관련 내용을 속성관련 내용보다 더 많이 상 기하였다. 본 연구의 결과를 바탕으로, 아시아인에게 지위지향포지셔닝이 효과적임을 제시하는 연구적, 실무적 시사점을 제안하였다. This study demonstrates position-oriented effects associated with products (e.g., products and their appeal) in Korea and Canada. Given that Koreans tend to focus on a vertical “pecking order” hierarchy and position-extended thinking via Confucianism, they are likely to consider their own position when purchasing products. In particular, Koreans tend to presume a relationship between their individual position and a product. This presumption concerning position-oriented products influences their beliefs toward superiors’ product ownership, leading Koreans (as opposed to Canadians) to have a higher level of positive attitude toward products related to people in superior positions. In contrast, Canadians tend to show less sensitivity toward the same position-oriented products. Furthermore, Koreans tend to display more positive reactions than Canadians with respect to the appeal of position-oriented luxury products (e.g., a chairman’s watch). Finally, this study suggests practical and academic implications.
머스트해브 아이템즈: 지위지향적 제품은 캐나다보다 한국에서 더 효과적이다.
김창수 ( Chang Soo Kim(first Author) ),정인식 ( Insik Jeong(corresponding Author) ) 한국국제경영학회 2015 國際經營硏究 Vol.26 No.2
본 연구는 동서양에 있어 지위지향제품의 효과를 살펴 보았다. 한국인은 유교사상을 바탕으로 수직적 계층 (또는 서열)에 익숙하고, 그에 따른 지위근거확장사고를 하기 때문에, 제품 구매시 자신의 지위를 고려하는 것으로 나타났다. 캐나다인과 비교하여, 한국인들은 개인의 지위와 제품간의 관계를 추정하는 성향 (예: CEO는 지위에 맞는 브랜드 제품을 소유했을 것이라는 믿음)을 높게 보였고, 지위지향제품 (예: CEO의시계)에 대해 더 높은 수준의 태도를 보였다. 또한 지위관련 내용을 속성관련 내용보다 더 많이 상기하였다. 본 연구의 결과를 바탕으로, 아시아인에게 지위지향포지셔닝이 효과적임을 제시하는 연구적, 실무적 시사점을 제안하였다. This study demonstrates position-oriented effects associated with products (e.g., products and their appeal) in Korea and Canada. Given that Koreans tend to focus on a vertical “pecking order” hierarchy and position-extended thinking via Confucianism, they are likely to consider their own position when purchasing products. In particular, Koreans tend to presume a relationship between their individual position and a product. This presumption concerning position-oriented products influences their beliefs toward superiors` product ownership, leading Koreans (as opposed to Canadians) to have a higher level of positive attitude toward products related to people in superior positions. In contrast, Canadians tend to show less sensitivity toward the same position-oriented products. Furthermore, Koreans tend to display more positive reactions than Canadians with respect to the appeal of position-oriented luxury products (e.g., a chairman`s watch). Finally, this study suggests practical and academic implications.
전인식,박현주,장유비 건국대학교 1996 學術誌 Vol.40 No.2
本 硏究에서는 현재 방파제 被服石의 결정을 의하여 거의 獨自的으로 이용되고 있는 Hudson式의 諸 문제점들을 파악하고 이 식을 최근에 國外에서 고안된 Van deer Meer式, Losada 式들과 비교, 분석하였다. 被服石 安定에 대한 次元解析을 수행한 결과, Hudson식은 波 週期 및 波의 충돌횟수 등이 전혀 고려되고 있지 않아 정확식이기보다는 하나의 指針的 성격을 띄고 있는 것으로 나타났다. Losada式은 그 성향은 Van der Meer式과 유사하지만 다른 두 式에 비해 상당히 과도한 安定度係數를 보이는 경향이 있다. 반면, Van der Meer式은 Hudson式과 定量的 類似性을 보이며 태풍 및 폭풍 시 흔히 발생하는 彼形傾斜에서 後者에 비해 60∼70%의 작은 安定度係數 값을 보인다. 따라서, 실제 被服石 설계 시에는 Hudson式과 Van der Meer式을 각각 적용하여 크게 계산되는 被服石 重量을 선택하는 것이 바람직한 것으로 판단된다. In the present study, the Hudson formula, which has been exclusively used in determining the armor blocks of breakwaters, is analyzed for its origin and shortcomings. Due to the fact that the formula doesn't include the effects of wave period and number of wave incidence, it may have to be considered as a guide-line rather than a precise formula. The formula is then compared with other recently proposed formulas ; Van der Meer's formula and Losada's formula. It is appeared that the Losada's formula gives much larger stability coefficients Ns than the other two formulas do. Contrarily, the Van der Meer's formula is quite comparable to the Hudson's formula. The former can calculate smaller values of Ns, even to 60 ∼70% of the values of the latter, for wave stiffnesses commonly occurring in stormy weather conditions. In the determination of the armor weight, it is therefore recommended to apply both formulas for a particular wave stiffness and to choose the larger value.
장형진(Hyungjin Chang),송진화(Jinhwa Song),석주식(Jusik Suk),이상률(Sangyul Lee),김규현(Gyuhyun Kim),권인식(Insik Kwon) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In 1999 the New Car Assessment Program (NCAP) in Korea was initiated with the primary purpose of providing consumers with a measure of the relative safety potential of vehicles in frontal crashes. The side impact test was added to the Korean NCAP in 2003. The eight small passenger cars were evaluated and the star ratings for the side crashes were reported. The star ratings for the injury severities are estimated using conversion points from the head injury criterion (HIC) and the maximum value of the chest deflection, the viscous criterion, the abdominal force and the pubic symphysis force. According to the test results, the dominant factors for the star ratings are the chest injuries such as the chest deflection and the viscous criterion.