Stereoselectivity of the Ortho Ester Claisen Rearrangement of Substituted Silylpropargylic Alcohols

윤성준,정근회,유병찬,Yun, Sung-Jun,Chung, Kun-Hoe,Yu, Byung-Chan Korean Chemical Society 2004 대한화학회지 Vol.48 No.4

동일 에너지 소비 시 고강도 유산소 운동방법에 따른 남자대학생의 염증지표 및 항산화능력에 미치는 영향

윤성준(Yun, Sung-Jun),백준형(Beak, Jun-Hyung) 한국웰니스학회 2020 한국웰니스학회지 Vol.15 No.1

이 연구는 20대의 비만 남성17명을 대상으로 동일한 에너지 소비량 기준, 고강도 지속적 유산소운동(HCAT)과 고강도 간헐적 유산소운동 (HIAT)의 차이가 염증지표(CPK, CRP) 및 항산화능력(MDA, SOD)에 미치는 영향을 규명하기 위한 목적으로 실시하였고, 자료처리는 SPSS ver. 21.0을 이용하여 시기별 차이를 확인하기 위하여 반복측정분산분석, 운동방법 간 차이 검증을 위하여 독립표본 t 검정으로 분석하였다. 첫째, CPK에서 시기의 주효과(p<.05)와 시기와 그룹의 상호작용(p<.01)에서 통계적으로 유의한 차이가 나타났고, 운동방법 간 차이검증은 고강도 유산소 운동 후 HCAT 집단에서 유의하게 증가한 것으로 나타났다(p<.05). CRP는 시기의 주효과(p<.01)와 시기와 그룹의 상호작용(p<.01)에서 통계적으로 유의한 차이가 나타났다. 둘째, MDA에서 시기의 주효과(p<.001)와 시기와 그룹의 상호작용(p<.001)에서 통계적으로 유의한 차이가 나타났고, 운동방법 간 차이검증은 고강도 유산소 운동 후 HCAT 집단에서 유의하게 증가한 것으로 나타났다(p<.05). SOD는 시기의 주효과(p<.05)와 시기와 그룹의 상호작용(p<.05)에서 통계적으로 유의한 차이가 나타났다. The purpose of this study was to investigate the effects of high-intensity continuous aerobic exercise (HCAT) and high-intensity intermittent aerobic exercise (HIAT) on inflammatory index(CPK, CRP) and antioxidant capacity(MDA, SOD). For this current study, seventeen 20s obese men who met the same energy consumption criteria participated in this current study. For data analysis, two statistical methods were performed. The repeated measure ANOVA was performed by SPSS ver 21.0 to measure difference between times, and an independent sample t-test was performed to verify the difference between differnt the exercise methods. This study found the following results: First, there was a statistically significant difference in the main effects of timing(p<.05) and the interaction between timing and groups(p<.01) in CPK. The difference between the exercise methods was significantly increased in the HCAT group after the high-intensity aerobic exercise(p<.05). CRP showed a statistically significant difference in the main effects of time(p<.01) and the interaction between times and groups(p<.01). Second, there was a statistically significant difference in the MDA main effect(p<.001) and the interaction between times and groups(p<.001). The difference between the exercise methods was significantly increased in the HCAT group after the high-intensity aerobic exercise(p<.05). Lastly, there was a statistically significant difference in SOD between the main effects of time(p<.05) and the interaction between times and groups(p<.05).

WebVR과 딥드립을 접목시켜 설계한 가상전시공간

윤성준 ( Sung-jun Yun ),이종헌 ( Jong-heon Lee ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.2

기술의 비약전인 발전으로 콘텐츠 분야 역시 최근 상용화되어 새로운 초실감 시대으로 급격한 변화의 국면을 맞이하고 있다. 가상현실, 증강현실, 홀로그램 등 다양한 시각 정보 처리 및 표현 기술 등은 기존에 경험하지 못했던 사용자 실감형 경험을 가능하게 한다. 현재 코로나19로 인해 큰 피해를 입은 문화예술을 WebVR 전시회로 누구든 어디에서나 문화 인프라의 혜택을 받게 하며 또한 기준에 존재하던 예술인들뿐만 아니라 일반인들도 작품 전시할 수 있게 스타일 전이 기능을 넣어 사람들이 문화예술에 대한 관심을 높일 수 있도록 기대한다.

초등학생의 학교스포츠클럽 참여가 학교생활 만족도에 미치는 영향

윤성준(Yun, Sung-Jun),백준형(Baek, Jun-Hyung) 한국웰니스학회 2023 한국웰니스학회지 Vol.18 No.2

비만 초등학생의 12주 음악줄넘기 운동이 혈중지질, 성장관련인자와 신체조성에 미치는 영향

윤성준(Yun, Sung-Jun) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.2

This study was the analysis of the effects on blood lipids, growth-related factors and Body composition of obese Elementary School Students, Intended for grade 5-6 boys 30 people, According to the music Rope-skipping exercise on blood lipids, growth-related and body composition evaluate the changes. Exercise group was three times a week and Example 1 at 50minutes to Music Rope-Skipping. Results of the study, Showed a significant difference between the groups in blood lipids, Showed lower values than the control group, the exercise group in TC, TG, LDL-C. Showed a significant difference between groups in growth-related factors, showed a higher value than the control group in the exercise group GH and IGF-1. In addition, In the exercise group showed a significantly lower body fat composition levels. As a result, Had positive effect on blood lipids, growth-related factors, and body composition of obese elementary students.

여대생의 섭식태도 차이에 따른 신체구성, 에너지섭취량, 에너지소비량 및 주관적 식욕 인식의 차이

윤성준(Yun, Sung-Jun),최재일(Choi, Jae-Il) 한국체육과학회 2019 한국체육과학회지 Vol.28 No.2

The purpose of this study was to investigate the difference in body composition, energy intake, energy consumption and subjective appetite according to the difference of eating attitude among 60 female college students. The subjects were classified into 30 normal group and 30 abnormal eating attitude group through the eating attitude questionnaire. The results are as follows. Body composition, weight, LBM and BMI were significantly lower in the abnormal eating attitude group than the normal group (p <.001). % Body fat was significantly higher in the abnormal eating attitude group than in the normal group (p<.001). RMR, daily total energy consumption, energy intake, and energy intake were significantly lower in the abnormal eating attitude group than in the normal group (p<.001), and the calorie deficit and deficit rate were significantly higher in the abnormal eating attitude group than in the normal group (p<.001). There was a significant interaction effect of appetite (p<.001). In the normal group, hunger appetite was higher at 08:00 and 21:00 than at 12:00 and 17:00, and in the abnormal eating group, hunger appetite was higher at 08:00 than at 12:00, 17:00 and 21:00. In addition, hunger appetite at 21:00 was higher in the eating disordered group than in the normal group. These results showed that female college students with abnormal eating attitudes classified by questionnaire showed low calorie intake despite high hunger appetite.

임신쥐 출산 전 유산소 운동량에 따른 Adiponectin과 PPAR-γ유전자의 발현

윤성준(Yun, Sung-Jun) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.1

This study got supplied ICR mice(7 week old), male(n=14), female(n=70) at Animal handling companies. After hybridization, It was selected pregnant mice and into 3 groups depending on exercise amount; no exercise group(n=15), low exercise group(n=15), mid exercise group(n=15), high exercise group(n=15). A series of genetic tests were performed to identify adiponectin and PPAR-γgene expression producing the following results. Although there were no significant statistical differences when comparing the “low exercise” group, mid exercise group and high exercise group, adiponectin expression within the liver showed notable statistical differences when comparing the no exercise group to the mid exercise group(p<.05) and the no exercise group to the high exercise group(p<.01). Statistical changes were noted for PPAR-γexpression showed statistical changes in the “no exercise” group and high exercise group(p<.05). In conclusion it was found that the right amount of pre/postnatal exercise can prove to be beneficial. Therefore, moderate exercise time before the birth of adiponectin, the more momentum increases the expression of PPAR-γgene was increased.

사무소 건물에서의 단순 PMV 회귀모델 기반 온열쾌적제어 적용방안 연구

윤성준(Sung-Jun Yun),공동석(Dong-Seok Kong),박정민(Jung-Min Park),김두환(Du-Hwan Kim),허정호(Jung-Ho Huh) 대한설비공학회 2013 대한설비공학회 학술발표대회논문집 Vol.2013 No.6

In this study, we have simplified the parameters for thermal comfort control and applied the results to an air-cooling control system in an office building, and confirmed its control effects by measuring the perceived thermal comfort and the energy consumption for cooling. A comparison of the thermal comfort and the energy consumption of the proposed system with those of an existing thermal comfort control system revealed that the maximum difference in the PMV index during the cooling period (July 1–August 31) was less than 0.1 and that the amount of energy consumption for cooling increased by 3.3%.

수소 이온 충돌을 이용한 후처리가 탄소 나노튜브의 구조적 물성 및 전계방출 특성에 미치는 영향

윤성준(Sung-Jun Yun),박창균(Chang-Kyun Park),박진석(Jin-Seok Park) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7

Carbon nanotubes (CNTs) are grown on TiN-Coated silicon substrates at 700℃ using an ICP-CVD method. Ni catalysts for CNT growth are formed using an RF magnetron sputtering system. Post-treatment using hydrogen ions has been performed in the ICP reactor by varying the treatment period. The characterization using various techniques, such as FESEM, HRTEM, and Raman spectroscopy, show that the physical dimension as well as the crystal quality of CNTs are changed by the post-treatment process. It is also seen that the hydrogen ion-bombardment may change the surface structure of CNTs, which may lead to produce better electron emission properties. The physical reason for all the measured data obtained are discussed to establish the relationship between the structural property and the electron emission characteristic of CNTs

중년남성의 음주습관과 신체활동 수준이 심혈관 질환 위험요인과 간 기능에 미치는 영향

윤성준(Yun, Sung-Jun),조원제(Cho, Won-Je) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.6

Based on the Korea National Health and Nutritional Examination Survey 6th 2015, this study was conducted to observe how drinking habits and physical activity levels affect cardiovascular disease risk factors and liver function factors of middle-aged men aged under 40-64 years. The Multivariate analysis of variance was used to compare the drinking habits and physical activity levels that affect ardiovascular disease risk factors and liver function. Multiple Logistic Regression was used to analyze the risk of physical activity level on drinking habits. As a result, there were no differences in the systolic blood preassure(SBP), diastolic blood pressure(DBP), fasting blood glucose(FBG), triglyceride(TG), HDL-C, LDL-C, total cholesterol(TC) and hs-CRP according to the physical activity levels. However, SBP. DBP. FBG, TG and TC was statistically higher in higher alcohol drink group(HADG) than lower alcohol drink group(LADG). LDL-C was statistically higher in LADG than HADG. Also, aspartate aminotransferase(AST) was higher in HADG than LADG, alanine aminotransferase(ALT) was significantly higher in moderate physical activity level(MAL) than low physical activity level(LAL) and high physical activity level(HAL). Among LADG and HADG, the ALT was higher in HADG. In addition, MAL had a lower odds ratio to be a HADG than LAL, and HAL had higher odds ratio to be a HADG than LAL. In conclusion, to improve cardiovascular risk factors and liver function of middle-aged men, drinking habits that lower Alcohol Use Disorders Identification Test(AUDIT) score are needed and moderate physical activity is the most effective.