• 한국운동역학회지
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• 제15권3호
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• pp.71-78
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• 2005

The purpose of this research was to conduct an analysis on the factors that determine the distance at the time of target swing based on the use of late hitting of outstanding college golfers to verify the difference between late hitting and the distance that target increases in regular swing and the distance. Then, this research conducts an analysis on the correlation between club head velocity, ball velocity, launch angle, back spin, meet ratio and distance that become kinematics variables at the time of target swing. To attain the above mentioned purpose, 25 outstanding college players with average experience and handicap of 6 years and 5, respectively, were targeted Comparative analysis on two swing that target increase in regular and the distance was conducted by used driver. When it pertained to two types of swing. analysis system comprised of an analytical software called the Science Eye of the Bridgestone and peripheries was used to define the relationship between variables of club head velocity, ball velocity, launch angle, back spin, meet ratio that become kinematics variables. As for the method of processing data pertaining to the factors that determine the distance, differences of distance by the type of swing was verified by using independent T-test that leveraged SPSS 120 statistics program. Moreover, level of correlation between variables that contribute to the increase in distance through relation of correlation, and analysis of tendencies was conducted to analyze tendency of non-distance to increase in accordance to the increase of each variable. Key results produced through this experiment are as follows: 1. Artificial late hitting for increased non-distance that targets skilled players had effect on increased the distance(p<. 05). 2 The drive distance is correlated with each measured variable that is positive correlation to ball velocity, club head velocity, meet ratio and relation of back spin and launch angle are negative correlation. ball velocity and club head velocity are very high correlated with drive distance(p<.01), back spin and distance are negative correlation(p<.01). 3. Among each measured variable increasing the club velocity is the most contribution, and ball velocity and meet ratio and the increasing launch angle and back spin is negative effect for increasing distance.

• 한국의상디자인학회지
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• 제10권2호
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• pp.91-103
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• 2008

Because of comfortable texture and easy treatment, more and more knit products has been required for leisure such as sports, traveling, hobbies, and various social activities. Therefore, the demand of knit is gradually increasing in the clothing industry. There are, however, several issues, which require solutions, and we must develop higher value-added products, which differentiate from those of developing countries allowing us to compete and win in the world market. The patterns on porcelain of underglaze iron, which had been popular from late-l5th century to mid-16th century, are diverse, unique, and traditional--so valuable patterns of our own. The computer hitting machine enables the designer to conceive new designs and produce samples of fabrics within a few minutes, which allows us to save time for mass production. Therefore, it is an essential tool for the knitting industry. After collecting, analyzing, and choosing various patterns on porcelains of underglaze iron, This study reflects the actual experience of hitting the fabrics with the patterns through the computer knitting machine which is also used to produce patterns after designing the new patterns through Adobe Illustrator and Photoshop, which has several merits. This article compares and analyzes them for production, which uses the patterns that has been designed from the patterns on porcelains of underglaze iron.

• 천문학회보
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• 제37권2호
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• pp.143.1-143.1
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• 2012

We attempt to investigate the main reason of the asymmetrical light curves of contact and near-contact eclipsing binary base on the hypothesis that cool spot was produced on late type star while hot spot was produced from transferred material from their companion star hitting surface. We select 7 eclipsing binary systems which showed asymmetric light curves and mass transfer. Period variation and mass transfer rate were obtained from O-C diagram. Radial velocity curves and light curves of those 7 eclipsing binary system were adopted from available literature in order to obtain the absolute dimension. For four contact eclipsing binary system (AD Phe, EZ Hya, AG Vir and VW Boo), their component stars belonged to spectral type G to K was fitted by cool spot model. While the other two near-contact systems (RT Scl and V1010 Oph) and one contact system (SV Cen) was fitted by cool spot model. The densities of the materials are adopted from stellar model which calculate by stellar structure code. The calculated spot temperature turns out to agree with the photometric solution but there are no correlate between period variation rate and type of spot.

• 한국언론정보학보
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• 제62권
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• pp.315-328
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• 2013

본 연구는 한국 언론의 상업화 과정에 관한 연구들을 비교 검토하여 언론학계에서 언론의 상업화에 대해 어떤 이해를 공유하고 있는지 살펴보는 것을 목적으로 한다. 현대 자본주의 사회에서 언론은 대중적 상업언론의 형식으로 존재한다. 이것은 19세기 서구의 정치경제적 변화 속에서 당시에 지배적이던 당파지와의 경쟁 속에서 지금 우리에게 익숙한 대중적 상업언론의 형태로 변모해왔고, 우리는 이 역사적 변화 과정을 언론의 상업화라고 부른다. 상업화 과정에 대한 연구가 중요한 이유는 객관주의, 전문직업인주의 등 대중적 상업언론의 성격과 관련된 대부분의 개념들이 상업화 과정에서 직업적 관행에 따라 형성되었기 때문이다. 우리 언론학계에는 언론의 상업화 과정에 대한 본격적인 역사연구가 매우 드문 편이지만 관련 연구나 유사 연구 속에서 간헐적으로 이루어져왔다. 그것은 1933년 상업화론과 1960년대 후반 상업화론으로 대별되는데, 두 주장 모두 한국의 언론이 정치적 억압에 적응하는 과정에서 전략적 선택으로 상업화했다고 파악하고 있었다. 이것은 현재 언론의 심각한 병폐 중 하나로 지적되는 정파성과 이념적 편향성을 이해하는 데 실마리를 준다. 현재 한국 언론은 시장에서보다 자신과 정치성향이 같은 정파나 정당의 집권을 통해 얻을 수 있는 경제적 혜택이 너무 많기 때문에 상업언론이면서도 당파지의 성격을 부분적으로 가지고 있다. 이런 점에서 한국 언론의 상업화는 여전히 진행 중이며 정치화와 균형을 이룬 진정한 상업화는 아직 시작하지 않은지도 모른다.