여가자원의 개발에 관한 연구

한윤수,문행자 한국스포츠리서치 2002 한국 스포츠 리서치 Vol.13 No.3

기계체조 안마기구와 기술의 변화 과정 탐색

한윤수,이수근 한국체육교육학회 2020 한국체육교육학회지 Vol.25 No.1

Purpose: The purpose of this study is to explore the skills and apparatus of pommel horse in men’s artistic gymnastics. Results: Pommel horse were developed in the 1795(height was already adjustable), 1800(two legs horse with iron), 1811(called a pommel horse), 1860(wooden horse with leather cover), 1920(the neck and waist were of a different length), and 1955 (the FIG officially set the length of the horse). Today, its pommels are made entirely of plastic handles, high quality leather and foam rubber. Height and width can be adjusted. It is important for understanding of the gymnastics skills on the pommel horse. The Russian wendesing, Magyar travel, Sivado, DSB 3 x on 1 pommel and Tong fei skills are often using these skills on pommel horse from the 1950s until today. PRK gymnast first performed the travel with legs flair, then many gymnasts performed this skill from 1980s to 1990s. Gymnasts performed the handstand skills and scissor skills through handstand in the beginning of 1980s. In 1900s, many new skills were made by USA gymnasts. Conclusion: After 2000s, most gymnasts are performing scissor skills through handstand and various flare skills. The following study will examine the various men’s gymnastics apparatus. 이 연구의 목적은 남자 기계체조 6종목 중 안마운동의 기구와 기술 변화과정을 탐색하는데 있다. 이 연구는 문헌연구를 실시하였고 1950년대부터 2000년대 까지 실시된 체조기술들과 관련된 문서를 대상으로 수집하고 분석하였다. 수집된 문서는 체조역사서, 체조도서, 국제체조연맹 남자 기계체조 채점규칙 집, 국제체조연맹 남자기술위원회 뉴스레터 등의 문서를 수집, 검토, 분석과정을 거쳤다. 다음과 같은 결론을 얻었다. 안마 기구는1795년도 안마 높이는 조정이 불가능하였고 1800년대에 처음 안마라고 불리게 되었으며 원통으로 둥그렇게만들어졌었다. 1863년도 안마는 나무로 만들어 가죽으로 씌우고 높이가 조정 가능하고 매우 안정적인 안마였었다. 그러나 1920년도에는 완전히 대칭적인 안마가 고안되었지만 불균형적인 모양을 하였고 2000년대 이후부터는 손잡이는 플라스틱으로 되어 있으며 높이와 너비가 자유롭게 조절이 가능하게 되었다. 한편 안마 기술은 1950년대에서 1970년대 신기술 Russian wendesing, Magyar travel, Sivado, DSB 3 x on 1 pommel 기술과Tong fei 기술이 발표되어 오늘날까지 많이 연기되고 있다. 1980년대에서 1990년대까지는 Magyar travel 기술을 다리 벌려 선회하는 토마스 동작으로 많이 연기하였고 현재는 E난도로 고난도에 해당한다. 1980년대에는물구나무서기를 이용한 기술, 시저스에 의한 물구나무서기 기술 그리고 Flop이라는 새로운 규칙을 만들어 안마의 다양성을 추구하였다. 2000년대 이후 안마기술의 특징은 기존에 발표된 기술을 기반으로 변형된 기술들이 속출하게 되었고 세계 우수선수들은 시저스에 의한 물구나무서기 기술과 다양한 토마스 기술들로 많이 연기하는 경향을 보이고 있었다.

인터넷 코너 : 생물학자를 위한 웹 안내서 2

한윤수 한국생화학분자생물학회 (구 한국생화학회) 2002 생화학분자생물학회 소식 Vol.22 No.3

제 51회 세계선수권대회 남자 마루운동 결승경기의 연기동향 분석

한윤수,남승구,박현권 한국체육대학교 체육과학연구소 2023 스포츠사이언스 Vol.41 No.2

The purpose of this study was to analyze the trends routines of the floor exercise final in the 51st Artistic Gymnastics World Championships held in Liverpool(GBR) 2022. The subjects for this research were 8 finalists in the floor exercise. The competition videos and results taken with the IRCOS video system provided by the International Gymnastics Federation were collected and analyzed according to the Code of Point 2022-2024 by FIG. The conclusion of the research was as follows. First, the frequency of element group was 97 times in total, followed by 42 times in Group III, 37 times in Group II, and 18 times in Group I. Second, in the element group I, the split of A difficulty, the Japanese handstand and Fedorchenko of C difficulty were the most frequently performed. Third, in the element group Ⅱ, the Salto fwd. stretched 5/2 turn of E difficulty and the Salto fwd. stretched 2/1 turn of D difficulty were the most frequently performed. Fourth, in the element group Group Ⅲ, Salto bwd. with 5/2 turn, the Salto bwd. with 3/1 turn of D difficulty and the Tukahara with 1/1 turn of E difficulty were the most frequently performed. Fifth, the start value were 6.20-6.40 points (37.5%), 6.00-6.10(25.0%), and the connection point 62.5% with 0.1 points. In addition, the high frequency of the D difficulty (75.0%) and the low frequency of the E difficulty(25.0%) were found.

Effects of potassium silicate as a surface modifier on the performance of dye-sensitized solar cells

한윤수,남혜정,김민정,김종태 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1

K₂SiO₃-modified TiO²(PS-TiO₂/FTO) prepared by a soaking process were applied to the photoelectrodes of dye-sensitized solar clells (DSSCs). The reference device without any modification showed a power conversion efficiency (PCE) of 9.33%, whereas for the device with the PS-TiO₂/FTO electrode, the PCE was increased to 10.57% (Voc = 0.78 V, Jsc = 21.80 mA/㎠, and FF = 62.21%). It was revealed that the PS modification induced the formation of a surface dipole on the TiO₂ photoelectrode, leading to the conduction band edge shift of TiO₂ toward a negative direction, and thus to an enhancement in Voc.

최근 연구소식 : Pyrrolysine , 유전적으로 암호화 된 22 번째 아미노산 ( Recent research news )

한윤수 한국생화학분자생물학회 (구 한국생화학회) 2002 생화학분자생물학회 소식 Vol.22 No.2

Effects of conductivity of ITO electrode and PEDOT:PSS buffer layer on the performance of flexible polymer solar cells

한윤수,김민정,남혜정,이찬희,이도경,우성호 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1

We report the influences of the sheet resistance (R_sheet) of a hole-collecting electrode (indium tin oxide, ITO) and the conductivity of a holecollecting buffer layer [poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate), PEDOT:PSS] on the performance of flexible polymer solar cell (PSC). By applying high-conductivity PEDOT:PSS, the efficiency of PSC with high R_sheet values of 160 Ω/□ and 510 Ω/□ is greatly improved, by a factor of 3.5 and 6.5, respectively. These results indicate that the conductivities of PEDOT:PSS will become more important to consider for manufacturing large-area flexible plastic PSC modules.

망상형 탄소폼의 열처리 온도가 기계적 물성에 미치는 영향

한윤수,이성민,김형태,Han, Yoon-Soo,Lee, Sung-Min,Kim, Hyung-Tae 한국세라믹학회 2012 한국세라믹학회지 Vol.49 No.3

The reticulated carbon foam have been used for their excellent properties in terms of thermal management which is getting important in industrial field currently. In this study, we measure the mechanical properties of the reticulated carbon foam which is heat-treated at various temperature from the prepared low-density phenol foam. Simultaneously, we observe microstructures with high resolution transmission microscope and measure the residual oxygen content of carbon foams to figure out the relationship between the apparent change of properties such as weight loss and linear shrinkage during heat treatment. In conclusion, the carbon foam heat-treated at $1400^{\circ}C$ shows the highest strength, and the mechanical behavior is believed to be strongly related to the creation of nano-size graphite crystals from the amorphous carbon during heat treatment. On the other hand, it is turned out that the weight loss occurred at the temperature under $1400^{\circ}C$ comes from the elimination of oxygen in the form of $CO_2$ or CO, but no evidence is found on weight loss mechanism at the temperature above $1400^{\circ}C$.

2022 세계선수권대회 남자 마루운동의 연기 동향 분석

한윤수,Jeff Thomson 사단법인 한국융합기술연구학회 2023 아시아태평양융합연구교류논문지 Vol.9 No.3

The aim of the study was to investigate the trends in execution score, difficulty score, elements, connections of routines on men’s floor exercise in 2022 World Championships. This study focuses on men’s floor exercise in qualification. We carried out a video analysis of 132 floor exercise routines. The split press to Japanese handstand(C value) and Fedorchenko(C value) in group I was the most frequently performed. The salto forward stretched with 1/1 turn(C value), salto forward stretched with 2/1 turn and double salto forward tucked(D value) in group II was the most frequently performed. salto backward stretched with 2/1(D value), salto backward with 5/2 turn and salto bwd. with 3/1 turn(D value) in group III was the most frequently performed. In order to get a good results and go into the final, execution score should be above 8.8 score and difficulty score should be above 6.1 score.

평행봉 몸 접고 2회전 뒤 공중 돌아 내리기 동작에 따른 착지동작의 성공요인 분석

한윤수,이용식 한국운동역학회 2003 한국운동역학회지 Vol.13 No.2