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RISS 인기검색어
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- 저자 : 최민형(Min Young Choi) (검색결과 4 건)
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성장에 영향을 주는 유전적.환경적 요인 분석에 대한 예비 연구
최민형,이진용,Choi, Min-Hyung,Lee, Jin-Young 대한한방소아과학회 2011 대한한방소아과학회지 Vol.25 No.3
Objectives: Purpose of this study is to analyze and to estimate which and how much genetic and environmental factors have affected on growth. Also, a method of final height prediction can be developed from this study results. Methods: Correlation analysis and categorical regression analysis were conducted between genetic and environmental factors correlated with the final adult height, through survey from 171 male. Results: Mid parental height, neonatal body weight, intake frequency of beef, chicken, milk, fruits and coffee, sleep quantity and quality during the elementary school and sleep quantity during the middle school have affected on the final adult height. And a regression equation with 0.494 for coefficient of determination was obtained. Conclusions: Mid-parental-height has the most affected on the final adult height. Among environmental factors, food and sleep have significantly affected, but exercise doesn't. Among foods, meal, beef, and milk intake have remarkably affected on the final height, and chicken and fruit also have affected in some degree, but coffee has affected badly. Among sleep habits, sleep quantity during the elementary school has the most affected, sleep quality during the elementary school and sleep quantity during the middle school also have affected in some degree on final height. The younger the age is, the more sleep have affected and sleep quantity have more affected than sleep quality. Neonatal weight also has remarkably affected on the final height. Through this analysis, the final adult height can be predicted using regression equation which covers 49.4% of genetic and environmental factors.
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츄음반타 ( Vantha Chhoeum ),왕창원 ( Changwon Wang ),장승완 ( Seungwan Jang ),민세동 ( Se Dong Min ),김영 ( Young Kim ),최민형 ( Min-hyung Choi ) 한국인터넷정보학회 2020 인터넷정보학회논문지 Vol.21 No.6
The consequences of wearing high heels can be different according to the heel height, gait speed, shoe design, heel base area, and shoe size. This study aimed to focus on the knee extension and flexion range of motion (ROM) during gait, which were challenged by wearing five different shoe heel types and two different self-selected gait speeds (comfortable and fast) as experimental conditions. Measurement standards of knee extension and flexion ROM were individually calibrated at the time of heel strike, mid-stance, toe-off, and stance phase based on the 2-minute video recordings of each gait condition. Seven healthy young women (20.7 ± 0.8 years) participated and they were asked to walk on a treadmill wearing the five given shoes at a self-selected comfortable speed (average of 2.4 ± 0.3 km/h) and a fast speed (average of 5.1 ± 0.2 km/h) in a random order. All of the shoes were in size 23.5 cm. Three of the given shoes were 9.0 cm in height, the other two were flat shoes and sneakers. A motion capture software (Kinovea 0.8.27) was used to measure the kinematic data; changes in the knee angles during each gait. During fast speed gait, the knee extension angles at heel strike and mid-stance were significantly decreased in all of the 3 high heels (p<0.05). The results revealed that fast gait speed causes knee flexion angle to significantly increase at toe-off in all five types of shoes. However, there was a significant difference in both the knee flexion and extension angles when the gait in stiletto heels and flat shoes were compared in fast gait condition (p<0.05). This showed that walking fast in high heels leads to abnormal knee ROM and thus can cause damages to the knee joints. The findings in this preliminary study can be a basis for future studies on the kinematic changes in the lower extremity during gait and for the analysis of causes and preventive methods for musculoskeletal injuries related to wearing high heels.
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항공기와 유사한 게임 개발환경 구축을 위한 소프트웨어 설계
김효관(Kim, Hyo-gwan),한규석(Han, Gyu-Seok),장원(Jang, Won),최민형(Choi, Min-Hyung),최영규(Choi, Young-Gyu) 한국정보전자통신기술학회 2013 한국정보전자통신기술학회논문지 Vol.6 No.2
실제 항공기에 탑승하여 교육을 수행 할 수 있으나 초등 비행 시 숙련도가 떨어지는 조종사를 교육하기 위한 비용과 위험이 만만치 않다. 또한 상당한 기술을 필요로 하는 고등 비행 훈련 시 따르는 위험도 마찬가지이다. 이러한 것들을 모의 소프트웨어를 통해 훈련에 따르는 위험과 비용을 줄일 수 있으며 예상되는 위험 상황을 가상으로 하여 실제 상황처럼 전개해 볼 수 있는 장점이 있다. 본 논문은 실제 항공기의 비행 역학 특성 및 무장 탄도학이 고려된 게임 개발을 위한 소프트웨어 플랫폼 기반을 설계함으로써 조종사가 되고 싶은 학생들의 항공기에 대한 이해를 돕기 위함이다. The actual aircraft flight training can be done, but falls pilots primary flight training skills to the many risks and costs are formidable. It also requires considerable skill to follow at a higher risk of flight training is the same. These things through software simulation training can reduce the risk and cost of the expected risk situations such as virtual reality development and has the advantage that you can try. In this paper, the characteristics and actual aircraft flight dynamics of the considered armed ballistics software platform for game development by designing a student wants to become a pilot in the aircraft is to help you understand.
ScienceON
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