초저이온 농도범위에서 혼합층 이온 교환능과 온도의 영향 1 . 이온 교환능

윤태경,문병현,노병일 ( Tae Kyung Yoon,Byung Hyun Moon,Byeong Il Noh ) 한국화학공학회 1995 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.33 No.1

Mixed-bed ion exchange performance was studied at ultra-low sodium chloride solution concentrations of less than 1.0×10^(-4) M. The performance was tested using the effluent concentration histories as a function of bed position and time for a laboratory-scale continuous flow column until both the canon and anion-exchange resins were exhausted. The breakthrough curves obtained by the shallow-bed technique gave some detailed results: the shape of the breakthrough curves at different positions as a function of time; effects of ration resin on the chloride breakthrough curve and anion resin on the sodium breakthrough curve; the movement of crossover points of sodium and chloride breakthrough curves as a function of resin ratio; and the effects of an unmixed bed.

신우신염 흰쥐모델에서 비타민 A와 항생제 병용 투여 시 신염증 억제 효과

윤태경,이승주,조용현 대한비뇨의학회 2003 Investigative and Clinical Urology Vol.44 No.5

Mass dynamics of coarse woody debris in an old-growth deciduous forest of Gwangneung, Korea

윤태경,손요환,노남진,김래현,서경원,이수경,이궁,이임균,임종환 한국산림과학회 2011 Forest Science And Technology Vol.7 No.4

We investigated the mass dynamics of coarse woody debris (CWD) in an old-growth deciduous forest dominated by Quercus serrata, Carpinus laxiflora, and C. cordata in a 1 ha permanent plot of the Gwangneung Experiment Forest, Korea, from 2002 through 2010. CWD mass varied from 16.8 to 34.2 Mg ha71, and the ratio of CWD mass to stand biomass varied from 0.06 to 0.13. The mean CWD mass input and loss rates were 4.81 Mg ha71 yr71 and 2.28 Mg ha71 yr71, respectively. A large heterogeneity of CWD mass, as represented by the spatial coefficient of variation (127.2%) and annual coefficient of variation (178.5%), might be inherent in the old-growth temperate forest, which consisted of large biomass trees. The decay rate constant, as estimated from the wood density change, was 0.049 yr71. However, the large variation of annual CWD mass input could cause the overestimation of decay rate constant (0.167 yr71) as calculated from the ratio of CWD mass input to CWD mass. According to the CWD decay class classification, class II (72.8%) comprised the majority of CWD mass. The proportion of CWD mass to total CWD mass was 57.5% for Q. serrata, 25.0% for C. laxiflora, and 10.4% for C. cordata, respectively, and corresponded to the proportion of stem biomass to total stem biomass. These data support the stability of the current status in this old-growth deciduous forest as representing the climax stage. Due to the relatively short-term measurement of CWD mass compared with the whole life span of CWD, additional long-term studies with various approaches are required to enhance the knowledge of CWD mass dynamics in this forest.

대학생의 코로나 스트레스가 대학생활적응에 미치는 영향: 부적응적 인지적 정서조절전략과 우울의 매개효과

윤태경,홍지영 한국재활심리학회 2022 재활심리연구 Vol.29 No.4

본 연구는 대학생의 코로나 스트레스와 대학생활적응의 관계를 부적응적 인지적 정서조절전략과 우울이 매개하는지 살펴보고자 하였다. 이를 확인하기 위해 2021년 8월 30일부터 10월 7일까지 전국의 대학교에 재학 중인 만 18세 이상의 대학생 386명(여학생 224명, 남학생 162명)을 대상으로 코로나 스트레스 척도, 대학생활적응 척도, 부적응적 인지적 정서조절전략 척도, 우울 척도를 사용하여 설문조사를 실시하였으며, PROCESS MACRO model 6을 이용하여 자료를 분석한 결과는 다음과 같다. 첫째, 코로나 스트레스와 대학생활적응의 관계에서 부적응적 인지적 정서조절전략은 우울을 거치지 않고 단독으로는 매개효과가 없었다. 둘째, 코로나 스트레스와 대학생활적응의 관계에서 부적응적 인지적 정서조절전략을 거치지 않은 우울은 완전매개효과를 보였다. 셋째, 대학생의 코로나 스트레스와 대학생활적응의 관계에서 부적응적 인지적 정서조절전략과 우울이 완전매개효과를 보였다. 이러한 연구결과는 대학 상담현장에서 코로나 스트레스로 인해 대학생활적응에 어려움을 겪는 대학생 내담자들을 효과적으로 돕기 위해서 부적응적 인지적 정서조절전략과 우울 증상에 대한 적절한 개입이 필요함을 시사한 점에 의의가 있다. 이러한 연구결과를 바탕으로 제한점 및 추후 연구를 위한 제언을 논의하였다.

CAD/CAM으로 제작된 임플란트 맞춤형 지대주의 방사선학적 평가

윤태경,이경제,정재헌,김희중,Yun, Tae-Gyeong,Lee, Gyeong-Je,Chung, Chae-Heon,Kim, Hee-Jung 대한치과보철학회 2017 대한치과보철학회지 Vol.55 No.3

목적: 이번 연구에서, 다양한 상황에서 골소실양을 평가하기 위하여 맞춤형 지대주를 사용한 환자에서 4년간의 후향적 방사선학적인 연구를 시행하였다. 대상 및 방법: 이번 연구의 대상은 CAD/CAM 맞춤형 지대주를 이용한 임플란트 고정성 보철물이다. 2011년 8월 1일부터 2012년 7월 31일 까지 조선대학교 치과병원 보철과에서 제작하여 고정성 보철물로 사용된 CAD/CAM 맞춤형 지대주와 상부 보철물들을 대상으로 하였으며, 고정성 보철물을 제작한 환자에 대하여 방사선학적 평가를 시행하여 보철물 장착 후 3개월, 6개월, 1년, 2년, 3년, 4년 단위로 총 4년 간의 후향적 연구를 시행하였다. 결과:연구 결과, CAD/CAM을 이용한 맞춤형 지대주는 기존 연구 결과에 비해 골소실 양이 적었다. 연결 고정된 그룹과 연결 고정되지 않은 그룹 간에 골소실 양(각각 0.27 mm, 0.5 mm)에 통계적으로 유의한 차이가 없었다. 또한 상악 전치부, 상악 구치부, 하악 전치부, 하악 구치부의 부위별 골소실양(각각 1.37 mm, 0.39 mm, 0.00 mm, 0.30 mm)에 통계적으로 유의한 차이가 있었다. 결론:CAD/CAM을 이용한 맞춤형 지대주는 연결 고정 여부에 따른 골소실 양에서 통계적으로 유의한 차이가 없었으며, 임플란트 식립 부위에 따른 골소실 양에서 통계적으로 유의한 차이가 있었다. Purpose: In this study, the retrospective radiographic study is executed to evaluate amount of bone loss of various conditions in patients using customized abutment for 4 years of follow-up. Materials and methods: The subjects of this study were implant fixed dental prosthesis using CAD/CAM customized abutments. CAD/CAM customized abutment and fixed dental prosthesis were manufactured by the Prosthodontics Department of Chosun University Dental Hospital from August 1, 2011 to July 31, 2012. Radiological assessments were performed on the patients who were treated by the fixed prosthodontics. After each treatment, a retrospective study was performed for a total of 4 years at 3 months, 6 months, 1 year, 2 years, 3 years, and 4 years. Results: As a result of the study, the customized abutment using CAD/CAM showed less bone loss than the results of existing research. There was no statistically significant differences at alveolar bone loss between splinting group and non-splinting group (respectively 0.27 mm, 0.5 mm). Also, there were statistically significant differences at alveolar bone loss in mx. anterior, mx. posterior, mn. anterior and mn. posterior part (respectively 1.37 mm, 0.39 mm, 0.00 mm, 0.30 mm). Conclusion: The customized abutment using CAD/CAM showed less bone loss than the results of existing research, there were statistically significant differences at alveolar bone loss in implant positions.

복강경을 이용한 외상성 복강내 방광파열의 치료

윤태경,서성일,김준철,박용현,황태곤 大韓泌尿器科學會 2003 Korean Journal of Urology Vol.44 No.4

국가미래기술발전을 위한 유네스코 인류무형유산 택견의 정신철학

윤태경,정구성,곽종민 충북대학교 국가미래기술경영연구소 2018 기술경영 Vol.3 No.3

Among all kinds of traditional martial arts existing in modern and historic days, Taekkyeon is the only martial arts that is recognized as UNESCO’s intangible cultural heritage of humanity. It is also selected as a 76th national intangible cultural treasure. It proves that Taekkyeon contains precious traditional values of Korean nationality in its moves and philosophy. In fact, as it is a martial arts of values and wisdom, learning or simply enjoying Teakkyeon may provide ample physical, psychological and educational benefits to the trainees. However, in the status quo, Taekkyeon was only been passed down to minority of trainees, and, thus, it is recognized as historic tradition, which is disparate from contemporary trends, for the public. Under such circumstance, this study aims to spread and vitalize Teakkyeon in contemporary society. To achieve so, this paper is establishing a definition of Teakkyeon—its characters, rules, history, origin etc. More importantly, this paper is focusing on suggesting several recommendations for Teakkyeon’s popularization and globalization by explaining core benefits in various perspectives.

Hertz 충돌 모델을 이용한 매니퓰레이터와 인간의 충돌에 따른 인체 응력 분포 해석

윤태경,신헌섭,임성수 제어로봇시스템학회 2015 제어로봇시스템학회 국내학술대회 논문집 Vol.2015 No.5

보행의도와 단계추정을 위한 하지운동 특성 분석

윤태경,이채혁,이광훈,이순걸 제어로봇시스템학회 2013 제어로봇시스템학회 국내학술대회 논문집 Vol.2013 No.5

Coarse woody debris mass dynamics in temperate natural forests of Mt. Jumbong, Korea

윤태경,정혜근,김래현,노남진,서경원,이수경,조우용,손요환 한국생태학회 2011 Journal of Ecology and Environment Vol.34 No.1

Coarse woody debris (CWD) mass dynamics in three temperate natural forests, dominated by Quercus mongolica, Abies holophylla, and Pinus densiflora, were studied for 5 to 8 years in a Korea National Long-Term Ecological Research (KNLTER) site located in Mt. Jumbong, Korea. CWD mass (Mg/ha), input rate of CWD mass (Mg ha^(-1) y^(-1)), and decay rate constant (1/y) were 20.6, 1.20, and 0.058 for Q. mongolica forest, 12.2, 0.44, 0.106 for A. holophylla forest, and 5.0, 0.00, and 0.086 for P. densiflora forest, respectively. CWD mass was classified into species, types (log, snag, and stump), and decay classes (I-V). The proportion of logs was higher than that of the other CWD types in Q. mongolica forest because of wind-related mortality, whereas the proportion of logs was similar to the proportion of snags in A. holophylla forest and P. densiflora forest. CWD mass, input rate, decay rate, and distribution reflected the status of forest regeneration and succession for three forests. Mass dynamics were affected interactively by a variety of factors including species, microclimate, and topography, but these effects were hardly distinguishable in this study because of the limited number of comparable sites and pieces of CWD. Thus, further studies will require data regarding long-term microclimate and CWD mass dynamics in a variety of forest types, which could represent diverse environmental factors.