운동 직후 고온 침수가 EPOC와 TG/ fatty acid cycling에 미치는 영향

조현철,김종규,강민철,홍완표,박노혁 龍仁大學校 體育科學硏究所 2005 體育科學硏究論叢 Vol.15 No.1

The purpose this study was to estimate effects of EPOC and TG/fatty acid cycling on warm water immersion of immediately after exercise. To elucidate the role of fatty metabolism, a sequence of five experiments was performed. Seven physically active, male subjects volunteered to participate in the presented study. The mean values for age, body mass and hight were 25±1.52 yr, 79.2±9.52kg, 177.2±4.62cm, respectively. After giving consent, participant visited the laboratory on six occasion: 1) 30min of treadmill exercise VO2max 55% and a further 60min recovery, 2) 30min partial body warm water immersion in a 39℃ and a further 60min recovery, 3) 30min whole body warm water immersion in a 39℃ and a further 60min recovery, 4) 30min of treadmill exercise VO2mas 55% and in 30min partial body warm water immersion in a 39℃, 5) 30min of treadmill exercise VO2max 55% and in 30min whole body warm water immersion in a 39℃. When compared by recover period within repeat on the base of changes of subjects average body temperature, not effective interactions among repeat. However, partial and whole body warm water immersion immediately after exercise shows it as the best effective exercise for VO2max 55%, partial and whole body warm water immersion. When compared by recover period within repeat on the base of changes of subjects EPOC, effective interactions among repeat(p<.05). Partial and whole body warm water immersion immediately after exercise shows it as the best effective exercise for VO2mas 55%, partial and whole body warm water immersion. The catecholamines concentration was significantly higher partial and whole body warm water immersion than exercise of VO2max 55%(p<.05). The TG concentration and free fatty acid was significantly higher partial and whole body warm water immersion immediately after exercise than exercise of VO2max 55% than Partial and whole body warm water immersion(p<.05). Based on the facts that we have discussed above, human metabolism is increased by both exercise and conditions of immersion and partial and whole body warm water immersion immediately after exercise than exercise of VO2maw 55% shows it as better effective treatment for increasing TG/Fatty acid cycling activation. Due to extremely heavy stress complained by subjects during whole body immersion, it is thought that more researches on it should be required.

Park's Vector 기법을 이용한 소형 3상 유도 전동기의 권선 고장 진단

한민관(Min-kwan Han),우혁재(Hyeok-jae Woo),송명현(Myung-hyun Song),박규남(Kyu-nam Park) 대한전기학회 2003 대한전기학회 학술대회 논문집 Vol.2003 No.7

체적제어를 이용한 신뢰성 기반 위상 최적화

박재용,황승민,임민규,오영규,박재용,한석영 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

This paper presents a reliability-based topology optimization (RBTO) using bi-directional evolutionary structural optimization (BESO). An actual design involves uncertain conditions such as material property, operational load and dimensional variation. Deterministic topology optimization (DTO) is obtained without considering of uncertainties related to the uncertainty parameters. However, the RBTO can consider the uncertainty variables because it has the probabilistic constraints. In this paper, the reliability index approach (RIA) is adopted to evaluate the probabilistic constraint. RBTO based on BESO starting from various design domains produces a similar optimal topology each other. Numerical examples are presented to compare the DTO with the RBTO.

An Investigation of the Stability of Y₂O₃ and Sintering Behavior of Fe-Based ODS Particles Prepared by High Energy Ball Milling

Park, Eun-Kwang,Hong, Sung-Mo,Park, Jin-Ju,Lee, Min-Ku,Rhee, Chang-Kyu,Seol, Kyeong-Won The Korean Powder Metallurgy Institute 2013 한국분말재료학회지 (KPMI) Vol.20 No.4

Fe-based oxide dispersion strengthened (ODS) powders were produced by high energy ball milling, followed by spark plasma sintering (SPS) for consolidation. The mixed powders of 84Fe-14Cr-$2Y_2O_3$ (wt%) were mechanically milled for 10 and 90 mins, and then consolidated at different temperatures ($900{\sim}1100^{\circ}C$). Mechanically-Alloyed (MAed) particles were examined by means of cross-sectional images using scanning electron microscopy (SEM). Both mechanical alloying and sintering behavior was investigated by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HR-TEM). To confirm the thermal behavior of $Y_2O_3$, a replica method was applied after the SPS process. From the SEM observation, MAed powders milled for 10 min showed a lamella structure consisting of rich regions of Fe and Cr, while both regions were fully alloyed after 90 min. The results of sintering behavior clearly indicate that as the SPS temperature increased, micro-sized defects decreased and the density of consolidated ODS alloys increased. TEM images revealed that precipitates smaller than 50 nm consisted of $YCrO_3$.

Comparison of time and cost between conventional surgical planning and virtual surgical planning in orthognathic surgery in Korea

Park, Si-Yeon,Hwang, Dae-Seok,Song, Jae-Min,Kim, Uk-Kyu Korean Association of Maxillofacial Plastic and Re 2019 Maxillofacial Plastic Reconstructive Surgery Vol.41 No.-

Background: The purpose of this study was to measure the time of the conventional surgical planning (CSP) and virtual surgical planning (VSP) in orthognathic surgery and to compare them in terms of cost. Material and method: This is a retrospective study of the patients who underwent orthognathic surgery at the Pusan National University Dental Hospital from December 2017 to August 2018. All the patients were analyzed through both CSP and VSP, and all the surgical stents were fabricated through manual and three-dimensional (3D) printing. The predictor variables were the planning method (CSP vs. VSP) and the surgery type (group I: Le Fort I osteotomy + bilateral sagittal split osteotomy [LFI+BSSO] or group II: only bilateral sagittal split osteotomy [BSSO]), and the outcomes were the time and cost. The results were analyzed using the paired t test. Results: Thirty patients (12 females, 18 males) met the inclusion criteria, and 17 patients were excluded from the study due to missing or incomplete data. There were 20 group I patients (LFI+BSSO regardless of genioplasty) and 10 group II patients (BSSO regardless of genioplasty). The average time of CSP for group I was 385 ± 7.8 min, and that for group II was 195 ± 8.33 min. The time reduction rate of VSP compared with CSP was 62.8% in group I and 41.5% in group II. On the other hand, there was no statistically significant cost reduction. Conclusions: The time investment in VSP in this study was significantly smaller than that in CSP, and the difference was greater in group I than in group II.

Layer-controlled thinning of black phosphorus by an Ar ion beam

Park, Jin Woo,Jang, Sung Kyu,Kang, Dong Ho,Kim, Doo San,Jeon, Min Hwan,Lee, Won Oh,Kim, Ki Seok,Lee, Sung Joo,Park, Jin-Hong,Kim, Kyong Nam,Yeom, Geun Young Royal Society of Chemistry 2017 Journal of Materials Chemistry C Vol.5 No.41

<▼1><P>BP thinning was carried out using a monoenergetic Ar<SUP>+</SUP> ion beam and the BP could be thinned without damaging the surface.</P></▼1><▼2><P>Black phosphorus (BP) is one of the most interesting two-dimensional (2D) layered materials due to its unique properties, including a band gap energy change from 0.3 eV (bulk) to 2.0 eV (monolayer) depending on the number of BP layers, for application in nanoelectronic devices. In general, 2D layered materials including BP have limitations in terms of synthesis due to the process factors such as time, temperature, <I>etc.</I>, and thus, a thinning technique from the bulk material to a 2D material needs to be used while controlling the removed layer thickness. In this study, layer-controlled thinning of BP was performed by using a controlled Ar<SUP>+</SUP> ion beam method and the BP thinning characteristics were investigated. By using the near monoenergetic ion energy in the range of 45–48 eV, BP could be thinned with the thinning rate of ∼0.55 nm min<SUP>−1</SUP> down to bilayer BP without increasing the surface roughness and without changing the chemical binding states. The BP oxide on the pristine BP could also be successfully removed using the same Ar<SUP>+</SUP> ion beam. 2D BP field-effect transistors (FETs) fabricated with the thinned bilayer–10-layer BPs exhibited electrical characteristics similar to those of pristine BP FETs suggesting no electrical damage on the BP layers thinned by the controlled monoenergetic Ar<SUP>+</SUP> ion beam.</P></▼2>

오장환 후기시와 고향의 동력

박민규(Park, Min-kyu) 한국시학회 2016 한국시학연구 Vol.- No.46

이 논문은 ‘나 사는 곳’의 일제 말기뿐 아니라 해방 후 오장환의 시편에서도 ‘고향’ 모티프가 주된 동력으로 작용했음을 밝히고자 하였다. 오장환의 후기시는 해방기의 새로운 현실에 부응하는 고향 찾기와 모색의 과정을 보여준다. 현실에의 기대와 환멸, 실천과 좌절, 내적 성찰로 이어진 그의 시의 과정은 ‘새 고향’과 ‘옛 고향’의 상보적 관계를 통해 구성된 특징이 있다. 시 「병든 서울」을 통해 서울을 이념의 ‘새 고향’으로 설정하게 된 오장환은 1945년 말부터 “똥수깐”으로 변한 현실과 마주하면서 회의와 환멸에 빠지는 모습을 보인다. 이에 따라 새 고향에 계속 남아야 할지, 어머니가 있는 ‘옛 고향’으로 돌아가야 할지의 고민은 1946년 초의 그에게 중요한 문제가 된다. 새 고향의 방법적 모색을 위해 일단 서울에 남게 된 그는 문학가동맹과 함께 하면서 문예 대중화를 실천하기도 하지만, 미소공위 결렬에 따른 현실의 벽 앞에서 다시 옛 고향을 찾는 모습을 보인다. 어머니의 “크나 큰 사랑”이 있는 옛 고향에서 새로운 가능성을 발견한 그는 이후 농민시론을 모색하거나 농촌 현실의 구조적 문제를 시화하면서 옛 고향의 생명력을 통해 “다시한번 용기와 히망”을 얻기에 이른다. 이 용기와 희망의 에너지로 ‘새 고향’ 수립을 위해 다시 한 번 대사회적 실천을 전개한 것이 1947년 오장환의 모습으로 볼 수 있다. 하지만 동시에 그의 시는 집단적 목적의식과 투쟁의식에 일체화되는 모습을 보임으로써 과거와 달리 현실에 대한 주체적 모색을 상실하고 만다. 이후 총검거로 상황이 열악해지자 그는 소월의 말년을 거울삼아 또 한 번 옛 고향으로의 귀향 가능성을 타진한다. 새 고향의 추구가 어려워질 때마다 옛 고향에서 활로를 찾으려는 태도가 반복적으로 나타난 것이다. 그런 점에서 고향은 일제 말뿐 아니라 해방 후의 오장환 시까지를 움직여간 중요한 시적 원천이었다 할 수 있다. This study attempted to prove that the ‘hometown’ worked as a major poetic dynamic not only in ‘Where I Live’ during the late period under the rule of Japanese imperialism but also in Oh, Jang-hwan’s poems after the Liberation. Oh, Jang-hwan’s later poems show the process of his search for and pursuit of hometown in response to the new reality during the liberation period. His later poems consist of expectation and disillusion from the reality, practice and frustration, and inner reflection, and these represent the structural characteristic of complementary relationship between ‘new hometown’ and ‘old hometown.’ Just after the Liberation, Oh, Jang-hwan defined Seoul as ‘new hometown’ through his poem ‘Sick Seoul,’ but seeing the reality that the city turned into “toilet,” he fell in skepticism and disillusion. At the beginning of 1946, consequently, he wandered between staying in the ‘new hometown’ and returning to the ‘old town’ where his mother was. In methodological search of new hometown, he remained in Seoul and was involved in the Literature and Art Popularization Movement with progressive literature groups, but faced with the barrier of political reality, he appeared to search for the old hometown again. In the old hometown where the mother’s “great love” was, he discovered new possibility and sought peasant poetics or created on the theme of the structural problems of farm villages. Going further, he came to attain “courage and hope once again” through the vitality of the old hometown. With energy from the courage and hope, in 1947, he waged another pro‐social campaign for constructing ‘new hometown’ in Seoul. At the same time, however, his poems showed the tendency of being incorporated into a collective sense of purpose and a sense of struggle, losing the trait of subjective searching for the reality. As the situation grew unfavorable due to the mass arrest, Oh, reflecting calmly on Kim, So-wol’s later years, considered returning to the old hometown again. That is, it appeared repeatedly that he tried to find a breakthrough in the old hometown whenever it became difficult to pursue new hometown. In this sense, hometown was an important poetic source that directed Oh, Jang-hwan’s poems not only during the late period under the rule of Japanese imperialism but also after the Liberation.

학교 부적응 청소년을 위한 승마 여가교육 프로그램 개발 및 효과 검증

박수정(Park, Soo-Jung),김민규(Kim, Min-Kyu) 한국사회체육학회 2015 한국사회체육학회지 Vol.0 No.62

This study aims to develop a program on horse riding leisure education for school maladjusted adolescents. To this end, a program on horse riding leisure education was developed based on structuring factor drawn from the study of Park, Soo-Jung and Kim, Min-Kyu(2014) on horse riding leisure education for school maladjusted adolescents and then, the content validity was verified by an expert group. In addition, developed program of horse riding leisure education was applied to 6 school maladjusted adolescents to verify the program validity. Through such process, total 16 sessions of horse riding leisure education program were developed including 5 programs of horse stable activity region, 3 programs of horseback activity region, and 8 programs of horse riding leisure education and counseling region. Verification of the content validity by a expert group showed that validity was ensured. According to the application of horse riding leisure education program to 6 school maladjusted students and the inductive classification of category through in-depth interview, it was revealed that the program had positive influence on school maladjusted students by improvement of interpersonal relations, recognition of the sanctity of life, improvement of consideration and endurance, improvement of confidence, and stress reduction.

스포츠복지문화 활성화를 위한 정책요인의 우선순위 산정

김민규 ( Kim Min-kyu ),박수정 ( Park Soo-jung ),박병권 ( Park Byung-kwon ) 인하대학교 교육연구소 2018 교육문화연구 Vol.24 No.4

본 연구는 스포츠복지문화 활성화를 위한 정책요인에 대해서 AHP를 활용하여 가중치를 도출하고, 향후 어떠한 정책요인부터 우선적으로 실현해야 하는지에 대한 제언하는데 목적이 있다. 이를 위하여 김민규와 송정란(2018)이 연구한 스포츠복지문화 활성화를 위한 정책요인들을 활용하여 우선순위 산정을 실시하였다. 이에 따른 주요 결론은 다음과 같다. 첫째, 계층 1은 정책 요인이, 둘째, 계층 2의 하위계층은 서비스전달체계 요인이, 셋째, 계층 2 중 정책 요인의 하위계층은 서비스전달체계 요인이, 넷째, 계층 2 중 인프라 요인은 콘텐츠웨어 인프라 요인이, 다섯째, 층 2 중 연구개발 요인은 전문가양성운영체계 요인이, 여섯째, 정책 요인의 계층 3 중 유관 법안 개정 요인은 관련 법안의 지원에 대한 논의 요인이, 일곱째, 정책 요인의 계층 3 중 정책개발 요인은 스포츠복지 정책사업 개발 요인이, 여덟째, 정책 요인의 계층 3 중 인식개선 요인은 지자체 및 유관기관의 복지적 관점 증진 요인이, 아홉째, 정책 요인의 계층 3 중 서비스전달체계 요인은 행정지원 부처 결정 및 역할 정립 요인이, 열 번째, 정책 요인의 계층 3 중 예산관련 요인은 예산확보방안 요인이, 열한 번째, 인프라 요인의 계층 3 중 하드웨어 인프라 요인은 기존 스포츠 시설 활용의 효율성 제고 요인이, 열두 번째, 인프라 요인의 계층 3 중 휴먼웨어 인프라 요인은 스포츠복지 강사충원 요인이, 열세 번째, 인프라 요인의 계층 3 중 콘텐츠웨어 인프라 요인은 스포츠복지 프로그램 개발 요인이, 열네 번째, 연구개발 요인의 계층 3 중 전문가 양성 운영체계 요인은 스포츠복지학의 교육과정 개발 요인이, 열다섯 번째, 연구개발 요인의 계층 3 중 기초자료 조사 요인은 스포츠와 복지 전문가의 상호교류 요인이, 열여섯 번째, 연구개발 요인의 계층 3 중 기획연구개발 요인은 스포츠복지 대체 프로그램 개발요인이 최우선 고려되어야 하는 것으로 분석되었다. 본 연구의 결과는 정책과정 전반과 학문의 유기적 결합에 도움이 될 것이다. 추후 학계와 현장의 의견 교류 및 비교분가 가능한 질적연구가 이루어져야 할 것이다. The purpose of this study is to identify the weight of the policy factors by using AHP for the purpose of activating sports welfare culture and make suggestions as to which policy factors should be implemented in the future. For this, priorities were set for the policy factors for activating sports welfare culture as studied by Kim Min-Kyu and Song Jung-Ran (2018). The key conclusions were as follows. First, for layer 1, it is the policy factors that top priority should be given to. Second, for the sublayer of layer 2, it is service delivery system. Third, for the sublayer of policy factors for layer 2, it is service delivery system. Fourth, for the infrastructure factor, it is content ware infrastructure. Fifth, for the R&D factor of layer 2, it is professionals training system. Sixth, for the related legislative amendment in layer 3 of the policy factors, it is the discussion of supports for related legislative proposals. Seventh, for the policy development factor in layer 3 of the policy factors, it is sports welfare policy project development. Eighth, for improved perception in layer 3 of the policy factors, it is the greater focus on welfare with local governments and related agencies. Ninth, for service delivery system factor in layer 3 of the policy factors, it is the determination of the government ministry and its roles for administrative supports. Tenth, for budget in layer 3 of the policy factors, it is how to get budget. Eleventh, for hardware infrastructure in layer 3 of the infrastructure factors, it is the increase of efficiency in using the existing sports facilities. Twelfth, for human ware infrastructure in layer 3 of the infrastructure factors, it is the recruit of sports welfare instructors. Thirteenth, for content ware infrastructure in layer 3 of the infrastructure factors, it is the development of sports welfare programs. Fourteenth, for the professional training and operation system in layer 3 of the R&D factors, it is the development of a curriculum for sports welfare studies. Fifteenth, for basic data research in layer 3 of the R&D factors, it is the mutual exchange between sports and welfare professionals. Sixteenth, for planning and R&D in layer 3 of the R&D factors, it is the development of alternative programs in sports welfare. The results of the study will be helpful in organically combining the policy course as a whole with the academic disciplines in general.

경관형용사 분석법을 활용한 국립공원 마을 유형별 경관 선호도에 관한 연구

심규원(Sim, Kyu-Won),박헌춘(Park, Heon-Choon),남승민(Nam, Seung-Min) 한국산림휴양복지학회 2021 한국산림휴양학회지 Vol.25 No.2

본 연구의 목적은 경관형용사 분석법을 활용하여 국립공원 내에 있는 마을의 유형별로 경관 선호도에 영향을 주는 경관 이미지를 규명하고자 하였다. 분석 결과, 경관 선호도에 영향을 주는 경관 요인은 마을 유형별로 차이가 있으며, 마을 경관 디자인 가이드라인 수립 시 고려해야할 경관 이미지는 아래와 같다. 첫째, 농촌형 마을의 전원성에만 국한된 형용사는 ‘자연스러운’, ‘풍요로운’, ‘전통적인’, ‘정적인’으로 산촌형 및 어촌형 마을보다는 가장 일반적이고 전통적인 이미지의 고정관념을 지니고 있다고 볼 수 있다. 둘째, 어촌형 마을의 전원성 중 가장 큰 차이를 보이는 부분은 어촌형 마을에만 도출된 형용사 ‘자유로운’이다. 셋째, 산촌형 마을의 형용사적 차이를 보이는 항목은 일반적으로 산의 특성을 반영하는 ‘울창한’, ‘깊은’ 두 단어이다. 도출된 결과를 바탕으로 국립공원 내 존치되어 있는 마을의 정주여건 개선과 공원자원으로서 활용성 제고하고, 공원 내 주민의 삶의 질 향상과 공원 내 마을 이미지를 개선하는데 활용할 수 있을 것이다. The purpose of this study was to identify landscape images that affect landscape preferences by type of village in the national park by using the landscape adjective analysis. As a result of the analysis, the landscape factors that affect landscape preferences vary by village type, and the landscape image to consider when establishing the village landscape design guidelines is as follows. First, adjectives limited to the rural village’s rural originality are ‘natural’, ‘rich’, ‘traditional’ and ‘static’, which have the most common and traditional image stereotypes rather than mountain and seaside villages. Second, the biggest difference among the rural characteristics of seaside villages is the adjective‘free’derived only from this village. Third, the two words that generally reflect the characteristics of the mountain village are ‘dense’ and ‘deep’. Based on the results, it will be able to improve the residential conditions of villages in the national park and improve their utilization as park resources, the quality of life in the park, and the village image in the park.