정밀 연삭된 지대주와 합성수지 지대주를 이용한 보철물의 적합도에 대한 비교 연구

정선희,마장선,정재헌,Jung, Seon-Hee,Ma, Jang-Seon,Chung, Chae-Heon 대한치과보철학회 1999 대한치과보철학회지 Vol.37 No.6

Recently, various implant cylinders were supplied. especially received gold cylinders, cast cylinders produced from premade gold and plastic cylinders and plastic cylinders. This study measured and compared precise fit produced when using conventional gold and plastic cylinders. The comparative fit of lapped and non-lapped castings made from plastic pattern was examined. The implant/abutment interface fit was evaluated by scanning electron microscopy(SEM) for each of four cylinders. The following results were obtained: 1. The case of plastic cylinder showed $9.67{\pm}1.50{\mu}m$ gap when Steri-Oss fixture was connected. 2. The case of lapped casting made from plastic cylinder showed $3.01{\pm}2.81{\mu}m$ gap when Steri-Oss fixture was connected. 3 The case of gold/plastic cylinder showed $9.80{\pm}1.68{\mu}m$ gap when Steri-Oss fixture was connected. 4. The case of gold cylinder showed ${5.47{\pm}2.43\mu}m$ gap when Steri-Oss fixture was connected. 5. In case of each cylinder which was connected with Steri-Oss fixture, the size of gap was showed less in the order of the case of gold/plastic cylinder, the case of plastic cylinder, the case of gold cylinder and the case of lapped casting made from plastic cylinder As results of this study, the use of premade gold cylinder offers an advantage over plastic pat-terns in precise fit. When plastic patterns are used, polishing of implant cylinder components should provide precise fit.

한국 여자프로골프선수들의 경기력 결정요인

정선희(Chung, Sun-Hee),여인성(Yeo, In-Sung) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.1

The purpose of this study was to analyze how much effect shot-making skill variables have on the performance of the tour players. The scoring average for 16 KLPGA tours in 2012 was set to be dependent variable. The six shot-making skill variables which were putting average, birdies percentage, greens in regulation percentage, par save percentage, par breaks percentage, and recoveries percentage, were set to be independent variables. The 990 players participated in 2012 KLPGA TOUR, who were reported all the seven variables statistics on KLPGA official home-page(http//www.klpga.com) were selected out of 1064 players. Standard multiple regression was applied to examine that 6 shot-making skill variables effect on scoring average of tour players. Regarding multiple regression analysis, mean, standard deviation, and skewness, and correlation coefficients were calculated among game shot-making skill variables. In order to examine the portion of each independent variable out of total variances of dependent variables, partial correlation and semi-partial correlation coefficient were calculated. Collected data was analyzed using FREQUENCIES and ONE WAY ANOVA, REGRESSION of SPSS Window 18.0. In conclusion, average score is determined by least 87% or maximum 98% by six skill variables. The most important influence to tour performance is par save from skilI variables which is reported by KLPGA officially, and also tour golf course affects the result of average score from skill variables. Therefore, skill variables which are requested to focus by players will be differentiated depending on the golf tour course.

조건부 추론나무분석을 활용한 한국계 LPGA선수들의 경기력 요인 분석

정선희(Chung, Sun-Hee) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.4

The purpose of the study was to show how the performance factors of Korean LPGA players affected prize money and the average score of KLPGA players, who attended LPGA tour in the U.S. during the recent 3 years (2017~2019). R and the conditional inference analysis were applied to 180 players within 60thplaceofprizemoneyranking,whoparticipatedinLPGAtourfrom2017to2019. The results of analysis were as follows. Firstly, Korean players showed higher scores in overall technical factors such as Driver Accuracy, Green in Regulation, Sand Save, and Putting Average, than non-Korean players. Non-Korean players’ score was higher in the birdie average, and they participated in more games than Korean players did. Secondly, the average score of Korean LPGA players was affected by a green in regulation and a putting average. Additionally, the green in regulation and the putting average affected to prize money. Between the green in regulation and the putting average, the green in regulation had more impact on the average score, and this concluded that the accuracy of the second shot was considered to be very important.

신체운동이 유아발달에 미치는 효과에 대한 메타분석

정선희 ( Chung Sun-hee ) 한국체육학회 2021 한국체육학회지 Vol.60 No.5

The purpose of this study was to present basic data for the development and application of infant physical exercise by systematically and comprehensively analyzing the effects of physical exercise for infant development. A total of 29 studies and 48 cases that meet the selected criteria was conducted the meta-analysis based on doctoral papers published in Korea from November 1998 to July 2020. The analysis results are as follows. First, the overall effect size of physical exercise on infant development was 0.87 and it showed a large effect size based on Cohen’s effect size. Second, the effect sizes by development area were shown in the order of social development (ES(g) = 1.21), cognitive development (ES(g) = 0.86), body development (ES(g) = 0.61), and emotional development (ES(g) = 0.61). Third, the effects of each type of exercises were large in order of movement (ES(g) = 0.92) and non-movement (ES(g) = 0.83). Fourth, the longer the duration of physical exercise, the more effective the size of the effect was confirmed. The above results derived the effects of physical exercise quantitatively and provided information on the composition of various intervention programs that could be adapted to early childhood education.

COVID-19 이후 2020년 한국여자프로골프선수의 경기력 분석

정선희(Chung, Sun-Hee) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.3

This study analyzed the golf performance of Korean Ladies Professional Golfers who participated in the 2020 KLPGA Tour. And for this, we used the performance data of the top 17 players in 16 competitions in 2020. Pearson’s correlation was conducted using the R 4.1 program for correlation analysis between variables applied to outcome generation and the statistical significance of the correlation coefficient. Next, path analysis was conducted to analyze the effect of performance factors on the score average through birdie. Par-save-average was affected by scoring average and putting average was validated as an important factor for birdie. After 2020, when the “New normal era”, such as players who were active on the overseas stage due to COVID-19, started moving to the domestic stage, if they trained for accurate putting, both Par-save-average and birdie would increase their performances.

하이브리드 요인이 사회적기업 성과에 미치는 영향 : 사회적기업가 정신의 매개효과를 중심으로

정선희(Chung, Sun Hee),조상미(Cho, Sang-mi) 사회적기업연구원 2018 사회적기업연구 Vol.11 No.3

The Effect of Technical and Psychological Factors on the Performance and their official money for KLPGA Tour Players

Chung, Sun-Hee(정선희),Yeo, In-sung(여인성),Chung, Yu-Mi(정유미) 한국웰니스학회 2017 한국웰니스학회지 Vol.12 No.4

본 연구의 목적은 한국여자프로골프선수 의 경기력에 영향을 미치는 (KLPGA) 기술요인과 심리요인을 알아보고, 그 연구결과를 분석하여 선수들의 경기력을 향상시키는데 있다. 이를 위해 2013~2015년까지 각 해의 한국여자프로골프협회에서 개최한 KLPGA 1부 투어에 출전한 60명을 대상으로 기술요인과 심리요인을 분석하였다. 그 결과는 다음과 같다. 첫째, 상금순위 집단에 따라 기술요인 중 버디율, 그린적중률, 파세이브율, 파브레이크 요인에서 차이가 유의미하게 나타났다. 둘째, 기술요인 중 파세이브율, 버디율, 파브레이크율, 그리고 드라이버 거리가 상금순위에 영향을 미치는 것으로 나타났다. 셋째, 상금순위 중 상위 집단이 심리요인 중 도전의식, 심상조절, 자신감, 주의집중, 그리고 각성조절에서 안정적인 것으로 나타났다. 종합해보면 기술적 요인 중 상금 순위에 가장 영향력을 미치는 요인은 첫째로 ‘파세이브’, 두 번째로 ‘버디율’, 마지막으로 ‘파브레이크’로 나타났다. 또한 심리적 요인으로 볼 때, 투어 골퍼 개인에게 맞는 전략적 심리기술 훈련을 구성할 필요가 있다는 것이다. The purpose of this study is to identify technical and psychological factors affecting the performance of KLPGA players and analyze it to enhance performances of players. For this purpose, it analyzes technical and psychological factors for 60 golfers participated KLPGA main tour each year from 2013 to 2015. The results were as follows. First, there were significant differences among official money ranking groups in birdie percentage, green in regulation percentage, par save percentage, and par breaks percentage. Second, par save percentage, birdie percentage, par breaks percentage and driving distance have an effect on official money ranking. Third, those who positioned higher in official money ranking showed better results in challenge, imagery control, confidence, concentration, and awakening control. Taken together, the factors affecting official money ranking were par save percentage", "birdie percentage" and "par breaks percentage". Also, through the psychological factors, it needs to compose strategic psychological skills training for tour golfer.

경기력분석을 통한 LPGA선수의 우승예측분석: 2011~2020년 종단분석

정선희(Chung, Sun-hee) 한국사회체육학회 2021 한국사회체육학회지 Vol.- No.84

Purpose: The purpose of this study is to analyze the performance factors to produce results by analyzing the performance data of LPGA players for 10 years from 2011 to 2020. The scoring average, driving distance, driving accuracy, greens in regulation, putting average, sand saves, birdies, eagles, and rounds in the 60’s were selected as performance factors to predict winning probability, and the prize-winning ranking up to 60th’ data group which had 95% of winning probability, was analyzed. Method: Technical statistical analysis was conducted to analyze the trend of performance factors for 10 years from 2011 to 2020. Also, the independent sample t -test was conducted to verify differences between winners and non-winners. Lastly, the decision tree analysis was used to verify performance factors affecting the winning probability. Results: Players in the top 60th in the LPGA’s prize money ranking steadily had improved their performance factors over the past 10 years. Those who had winning experiences differed significantly in scoring average, driving distance, driving accuracy, greens in regulation, putting average, and saves, birdies, eagles, and rounds in the 60’s. The factors that determined the winning were driving accuracy, greens in regulation, putting average, and scoring average. Conclusion: In order to achieve good performance in the LPGA, training to increase the birdies would be necessary. Also, unlike in the past, training to increase driving accuracy would be necessary. This implies that short game capability can be a direct factor for winning than power game capability in the future. This shows that focusing on training the accuracy of shots is very effective to win for KLPGA players who want to enter the LPGA.

KLPGA 경기력기술요인 종단분석: 2013~2022년

정선희(Chung, Sun-Hee) 한국체육과학회 2023 한국체육과학회지 Vol.32 No.6

This study collected technical factor data on the golf performance records of 600 players who participated in the for 10 years from 2013 to 2022, and conducted basic statistics analysis, correlation analysis, and multiple regression analysis. Correlation and contribution of performance technical factor relating average score were accurately analyzed first. The results of comparing and analyzing relative contributions of technical factors were as follows, relating average score which was important factor for improving performance. First, according to technical statistics, only the driver distance among performance technical factors, decreased. However, player’s performance steadily improved from 2013 to 2022 in total prize money, average putting, par save rate, par break rate, and recovery rate. Second, performance technical factors in general showed a high correlation with average score, followed by par save rate and par break rate. Third, it was found that the contribution to average score for 10 years had a statistically significant effect in the order of the parbreak rate and the par save rate.

식품영양 전공 및 비전공 여대생 영양섭취상태 및 혈액성상에 관한 비교 연구 : 혈청 철분을 중심으로

정선희(Chung Sun Hee),장경자(Chang Kyung Ja) 韓國營養學會 2002 Journal of Nutrition and Health Vol.35 No.9