• Proceedings of the Korean Society for Quality Management Conference
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• 2004.04a
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• pp.133-141
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• 2004

최근 국내 중소 제조 기업들은 최악의 상황을 맞이하고 있다. 내수부진으로 인한 국내 경기 불황에다 지난 해 말부터 불어닥친 국제 원자재 가격폭등까지 겹치면서 경영 상황이 악화되고 있는 것이다. 더욱이 부풀이나 부자재를 생산하여 모기업에 납품하는 형태의 중소 제조공급자 기업의 경우에는 그 어느 때보다도 치열한 전쟁과 같은 상황에 직면하여 사투를 벌이고 있는 것이다. 이러한 변화무쌍한 시대에 우리의 중소 제조공급자 기업의 특성을 재조명 해보고, 선행연구의 검토를 통해 경영혁신의 성공요인과 경영성과 및 경쟁력 향상 방안에 대해 고찰해 보고자 한다.

• Korean Journal of Applied Biomechanics
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• v.18 no.3
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• pp.11-21
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• 2008

The purpose of this study was to investigate the most optimum way of performing the bandal chagi during Taekwondo Kyorugi competition. By analyzing the EMG data and the kinematic data it was hoped that scientific data would be provided to instructors and players about the optimization of the Bandal Chagi. The results of the analysis are as follows: During competition while performing the Bandal Chagi the most important factors that affect the impact point are the range of motions of the upper body hyper extension and knee joints. Through the measurement of the muscles EMG activity of a well performed Bandal Chagi with the right leg it was observed that the left side erector spinae muscle was highly activated and so it was concluded that this muscle should be trained to improve the performance of the Bandal Chagi. Likewise it was observed that for the right side of the abdominal muscle's EMG there was a high activity level and thus showed that there was a large contribution of this muscle for the optimum performance of the Bandal Chagi.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.268-276
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• 2017

The aim of this study was to verify the theoretical relationship between sports ability beliefs, achievement goal orientation, exercise flow, and athletic performance in college golf athletes. The results of the Statistical Package for Social Sciences (SPSS) 18.0 and Analysis of MOment Structures (AMOS) 18.0 performed on the data collected from 211 participants are as follows. First, hypothesis testing showed that college golf athletes with incremental beliefs set task-oriented goals (C.R.=3.780, p<.001). Second, the task-oriented goals (C.R.=4,082, p<.001) and ego-oriented goals (C.R.=3.819, p<.001) in achievement goal orientation raised the level of flow during golf. Third, in achieving goal orientation, only task orientation led to a higher perceived level of golf performance (C.R.=3.020, p<.01). Fourth, a higher level of flow led to higher levels of golf performance (C.R.=4.642, p<.001). Other sub-factors were not statistically significant in the current study. These results could be applied in the field of sports as they show what results can be achieved depending on the athlete's belief in their sports ability.

• Journal of the korean Society of Automotive Engineers
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• v.24 no.5
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• pp.98-103
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• 2002

이제 카트 정렬과 휠 셋업에 필요한 최적의 변수들을 알아보았다. 실제 세팅은 위에서 언급한 내용 이외에도 많은 것들을 고려하여야 한다. 타이어 접지력의 세팅은 경기장, 날씨, 제품의 불 균일성 등을 고려하여 야 한다. 즉, 어떤 경기장은 코너의 반경이 다른 경기 장 보다 크며 어떤 경기장은 코너가 매우 많기도 하여 세팅을 상황에 맞게 하여야 하는 것이다. 각각의 변수를 세팅할 경우는 중간 값을 취하는 것이 바람직하여 이 중간 값을 취하는 것이 바람직하며 이 중간 값을 각각의 경기장의 특성에 맞추어 변화시키면 되는 것이다. 예를 들면, 접지력이 작게 발생되는 경기장(혹은 매우 추운날씨) 에서는 캐스터를 코기 하여 초기 회전 발생이 용이하게 할 수도 있다. 또한 토우인 값을 크게 하여 타이어가 마찰을 더욱 많이 발생하여 타이어의 온도가 급격히 상승하여 원하는 접지력의 수준에 용이하게 도달할 수 있게 하는 것이다. 그러나 이러한 세팅은 다른 핸들링 문제를 야기할 수 있다는 것을 이해하여야 하며 이러한 문제를 해결하는 또 다른 노력이 필요하게 되는 것이다. 가장 중요한 것은 후륜 내측으로부터는 조종 성능을 향상시키는데 필요한 접지력을 거의 기대하지 못한다는 것이며 마찰이 적게 발생하여 손쉽게 동력 손실을 초래하고 있다는 것이다. 그러므로 회전을 할 경우에도 속도를 낮추어서는 안되며 이렇게 하이야 핸들링이 매우 용이하게 되는 것이다. 그러나 위의 설명에서도 보았듯이 일부 세팅을 변경하면 여러 곳이 그 효과가 나타난다. 예를 들어 후륜의 간격을 변화시키면 카트에서 무게이동 뿐만 아니라 회전 시에 가속이나 감속에 의한 회전 토크의 효과도 달라지게 된다. 특정한 세팅의 변화가 어떻게 작용할 것이라는 확신을 가지고 있다고 할지라도 세팅에서 가장 중요한 것은 주행 기록이다. 여기서 설명되어진 많은 내용이 주행 기록을 향상시키기를 바라는 바이다.간이 육색과 총육색소 함량에는 영향을 미치지 않는 것으로 나타났다. 관능적 특성평가 중 육색과 육즙참출은 대조구와 비교하여 CLA급여 처리구가 유의적인 차이가 없었으나, 근내지방 축적 정도와 전체적인 기호성은 대조구에 비하여 CLA 급여 처리구가 유의적으로 높은 평가를 받았다(p<0.05). 간격은 술 후 1년 후까지도 지속적으로 감소하는 경향을 보였다. 따라서 이 기간동안에는 추적관찰이 필요한 것으로 생각된다.경미하게 나타났으며, 이는 2% 흥국 첨가식이의 섭취로 인한 bromobenzene 대사 및 유해산소 해독의 촉진에 기인되기 때문일 것으로 생각된다.다.과 및 지질과산화억제효과의 순과 일치하였다. 총 flavonoid 함량은 DPPH 라디칼 제거효과에 대한 $IC_{50}$/ 값과 높은 상관관계(r=-0.9924, p<0.01)를 나타내었다.이 우수한 심근보호 효과를 나타내나, 허혈시간이 2시간을 초과하면 심근의 혈역학적 기능과 미세구조의 변화는 중등도의 저온(22∼24$^{\circ}C$)에서 유의하게 악화되었다. 이 같은 결과로 볼 때 심근 허혈시간이 2시간을 초과한다면 심근 온도를 낮추어야 할 것으로 판단된다. 7.2, with 64.0% of office workers having an average level between 6- and 9. The degree of stress was higher for females than males, for unmarried salaried and hot-tempered persons. Those not doing exercise were subject to the highest levels of stress, and those a having sufficient sleep were found to be subject to less stress.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.18 no.1
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• pp.46-51
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• 2019

As the industry develops and quality of life increases, the concept of leisure is also changing. Bicycling is a healthy sport for exercising while enjoying nature, facilitating the enjoyment of a healthy life. As a result, the awareness surrounding bicycles has increased, and so has the interest in lighter and more luxurious carbon bikes. The number of domestic companies producing carbon bicycles frames is nil. In this study, we analyze the frames of existing foreign brands and analyze the deformation and stress concentration area according to the load of the frame, using the finite element analysis. In addition, we set up the range of stiffness based on the content of the structural analysis, to localize the carbon bicycle frame and famous foreign products, and compare the prototype with the stiffness by using bicycle molds for track races.

• Economic Analysis
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• v.24 no.3
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• pp.1-36
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• 2018

When it comes to explaining the relationship between inventory investment and business fluctuations, the production smoothing theory and the stock-out avoidance theory take contradictory stances. Decision-making related to inventory investments of corporations is thought to be influenced by both motives, but the relative sizes or directions of their respective influences can differ depending upon the phase of the business cycle. Against this backdrop, this paper differs from existing studies in that it theoretically tests the relative significances of the production smoothing and stock-out avoidance motives in the inventory investment dynamics, while placing its analytical focus on determining the existence and patterns of the asymmetric dynamics of inventory investment over the business cycle phases. To this end this paper sets up a non-linear model that is expanded from the existing linear inventory investment model, and checks whether its predictive power is better than that of the existing model. The results of analysis confirm the nature of the asymmetric dynamics of inventory investment over the business cycle phases. A stock-out avoidance motive appears but there is no significant production smoothing motive in boom times. In downturns, in contrast, the stock-out avoidance motive is insignificant, but a quality of asymmetric dynamics in which changes in inventory cause the deepening of recessions, due to the non-convexity of production costs proposed by Ramey (1991), is detected. This paper confirms that a model considering the asymmetric dynamics of inventory investment can have better predictive power than one that does not consider it, through within-sample and out-of-sample predictions and various predictive power tests. These research results are expected to be useful for economic forecasting, through their enhancement of the understandings of the inventory investment dynamics and of the nature of its business cycle destabilization.

• 한국체육학회지인문사회과학편
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• v.51 no.3
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• pp.427-435
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• 2012

The purpose of this review study is to examine current status of dietary supplement use to enhance athletic performance capacity in elite athletes based upon anti-doping education, sports type, athletic performance capacity, gender, and age. Several previous review studies have focused on the biochemistry characteristics and intake incidence of dietary supplements and those studies have not showed enough evidence of the reason why elite athletes usually take dietary supplements. Anti-doping education may increase the incidence of dietary supplement use in elite athletes because of increasing expertise of dietary supplements. It would be expected that increased incidence of long-term dietary supplement use may induce positive effects on the body having potential effects on athletic performance capacity, although a trace of nutrients may not directly effect on the outcome of the game. Moreover, it seems that the difference of dietary supplement use based upon gender and age may come from sports type and the difference of dietary supplement intake reason may come from health and body condition maintenance rather than athletic performance capacity when considering dietary supplement use items based upon intake reasons. Most elite athletes consume at least over 2 dietary supplement items in a long period of time rather than 1 dietary supplement item in a short period of time; however, the scientific evidence of dietary supplement use seems to be insufficient. Therefore, further experimental approach studies concerning dietary supplement effects would be needed.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.591-604
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• 2017

The purpose of this study was to develop and evaluate the program for convericient reconfiguration in an attempt to change maladjustmental way of thinking among female junior tennis players. For verification of the program, a qualitative analysis and quantitative analysis were carried out. Through the REBT program for convericient reconfiguration, maladjustmental way of thinking among junior tennis players was drawed and interviews with them were subsequently performed. As a result, REBT counseling technique was applied to understand personal psychological problems and to transform maladjustmental and unreasonable way of thinking into rational belief, confirming positivity toward their situation. After all, their athletic performance as well as holistic development was found to be improved. In quantitative analysis, maladaptive thinking scale sports psychology questionnaire and survey for Korean sports performance strategy were both increased post treatment, suggesting that their psychological status became positive as a result of application of psychological prevention. The results of this study showed that athletic performance would be enhanced and growth and development in personality and self-realization would be expected if various psychological problems in adolescent players were progressed in detailed.

• Journal of the Korean Applied Science and Technology
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• v.38 no.6
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• pp.1606-1615
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• 2021

The purpose of this study is to provide basic data for injury prevention and performance improvement by developing a flywheel training program for handball players. The results of analyzing the effects of the 12-week complex flywheel training program on body composition, physical fitness factors, anaerobic power, and isokinetic muscle function are as follows. There was a significant difference between groups in push-ups. Body fat percentage and anaerobic power showed significant differences in the interaction by period. Long jump, slow jump, grip strength, back muscle strength, anaerobic average power, and isokinetic muscle function tests showed significant differences by period in the left and right flexors. Therefore, it is considered that 12-week flywheel training results can be used as the basic data for injury prevention and improvement of performance in handball players.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.10
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• pp.2837-2845
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• 2009

This study certified that the mentality training that utilized ICT learning has been working as an important base having much effect on learner's basic attitude on physical education class, improvement of bodily exercise function, and class satisfaction, and that the exercise ability was improved in the scope of speed, form(posture), accuracy(shooting success rate), and adaptability(performance ability). It means it is a much more step-forwarded educational method that the advantages of ICT learning and mentality training at the existing learning method were applied to the reality. Regarding the object of this study, it is a little bit unreasonable to generalize its study results in that it wasn't intended for national unit sampling. Therefore, in the future study, it is necessary to continue to advance the study that its representative-ness was supplemented through the balanced sampling between area and area, and between grade and grade.