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여고생 식이태도와 심리적 및 생리적 요인과의 상관관계 ; 우울감, 공격성, 충동성 및 혈중 콜레스테롤에 대하여
박준성,이준석,이장한,양병환,조연규,Park, June-Sung,Lee, Joon-Seok,Lee, Jang-Han,Yang, Byung-Hwan,Cho, Yun-Gyoo 한국정신신체의학회 2001 정신신체의학 Vol.9 No.2
이 논문의 목적은 여고생을 대상으로 청소년의 식이태도와 이에 영향을 미칠 것으로 기대되는 우울감, 공격성, 충동성 등 심리적 요인과, 콜레스테롤 및 중성지방 등 생물학적 요인의 상관관계를 확인하는 것이다. 이를 통하여 최근 국내에서도 매우 빠른 속도로 증가하고 있는 각종 섭식장애의 1차 예방을 위한 기초자료를 제시하고자한다. 신체질환이 없는 241 명의 여고생을 대상으로 한국판 청소년용 식이태도 검사(EAT-26KA)를 실시하였다. 심리적 요인 가운데 우울감, 충동성, 공격성을 평가하기 위하여 각각 한국판 Beck Depression Inventory (BDI), 한국판 Barrat Impulsiveness Scale (BIS), 한국판 Buss-Durkee Hostility Inventory (BDHI)를 이용하였고 생물학적 요인으로 혈중 콜레스테롤과 중성지방 농도를 측정하였다. 섭식장애 행동에 영향을 미치는 변인을 찾기 위해 식이태도를 종속변인으로 하고 각각의 심리학적 변인들과 생물학적 변인을 독립변인으로 하여 단계적 중다회귀분석을 한 결과, 섭식장애 행동은 BDHI가 가장 잘 설명하고 있는 것으로 나타났으며, 그 다음으로는 BDI, 콜레스테롤/중성지방의 순으로 유의미한 예측변인이었다. The purpose of this study is to evaluate correlation of adolescent eating attitude and psychological factors which might influence the eating attitude such as depression, aggression and impulsiveness. The author also tried to identify relationship between adolescent eating attitude and biological factors such as serum cholesterol level and triglyceride level. Two hundred and forty one female high school students without physical disorder were selected as study subjects. For the study, Eating Attitude Test-26KA (EAT -26KA), Beck Depression Inventory (BDI) -Korean version, Barrat Impulsiveness scale (BIS) -Korean version, and Buss-DurKee Hostility Inventory (BDHI) -Korean version were used. Serum cholesterol level and triglyceride level were also investigated. For the purpose of identifying factors which could influence eating attitude of adolescence, stepwise multiple linear regression analysis was done. Total score of BDHI could be most significant factor to explain eating attitude, and BDI, serum cholesterol/triglyceride level be second, third position respectively. But, BIS was not significant predicting parameter. The contributing portion of these factors to explain eating behavior was 25.9%.
대향류 화염에서 CO₂ 재순환 산소부화연소의 NO 배출 특성
박준성(June Sung Park),박정(Jeong Park),조한창(Han Chang Cho) 한국연소학회 2007 한국연소학회지 Vol.12 No.1
Numerical study is conducted to grasp the flame structure and NO emissions for a wide range of oxy-fuel combustion (covering from air blown combustion to pure oxygen combustion) and for various mole fractions of recirculated CO₂ in CH₄-O₂/N₂/CO₂ counterflow diffusion flames. Special concern is given to the difference of the flame structure and NO emissions between air blown combustion and oxy-fuel combustion w/o recirculated CO₂ and is also focused on chemical effects of recirculated CO₂. Air blown combustion and oxy-fuel combustion w/o recirculated CO₂ are shown to be considerably different in the flame structure and NO emissions. Modified fuel oxidation reaction pathways in oxygen-enriched combustion are provided in detail compared to those in air blown combustion w/o recirculated CO₂. The formation and destruction of NO through Fenimore and thermal mechanisms are also compared for air blown combustion and oxyegn-enriched combustion w/o recirculated CO₂, and the role of the recirculated CO₂ and its chemical effects are discussed. Importantly contributing reaction steps to the formation and destruction of NO are also estimated in oxygen-enriched combustion in comparison to air blown combustion ..
박준성(Park June Sung) 표준인증안전학회 2013 표준인증안전학회지 Vol.3 No.2
Object Management Group (OMG) has released a beta version of Essence in June 2013 as an international de facto3) standard for the kernel and language for software engineering methods. Essence provides a common set of elements and language to describe software engineering practices so that they can be compared, selected and integrated into a coherent method for a specific software development project. This paper introduces the Essence standard and shows how it can be applied in a software development project. The benefits of using Essence as a common foundation to describe software engineering practices are discussed.
관내 예혼함 화염에서 외부 CO₂ 레이저 조사에 의한 화염면 진동의 동적거동
박준성(June Sung Park),Fujita Osamu,Nakamura Yuji,Ito Hiroyuki 한국연소학회 2009 KOSCOSYMPOSIUM논문집 Vol.- No.39
Experiments in premixed C₂H₄/CO₂-O₂ flames (Le < 1) in a tube have been conducted, the mixture was ignited at the top, open end of and propagating downwardly toward the closed end. to investigate the exact motion of flame tip fluctuations at the initial moment of irradiating CO₂ laser, the completely flat flame front is selected as a default flame, which is corresponding to the primary acoustic instability as reported by Searby.[1] During the laser exposure to the unburned mixture, the flame fronts had extremely unstable behaviors, resulting in a strong turbulent flame eventually through the secondary acoustic instability. To elucidate the effect of flame curvatures, the flame velocity and curvature prior to the secondary acoustic instability were analyzed by using captured high speed camera images. the results showed that a sudden acceleration at advancing waves was observed. And then, there was the time lag between the flame velocity and curvature, indicating the increase in the flame velocity even with decreasing flame curvature. these behaviors are closely relevant not only to the diffusive-thermal effects but also to the acoustic waves. the plausible mechanism was proposed in this paper based on the acoustic influence.
저신장율 대향류확산화염에서 진동불안정성을 갖는 에지화염의 동적거동
박준성(June Sung Park),김현표(Hyun Pyo Kim),박정(Jeong Park),김정수(Jeong Soo Kim),길상인(Sang In Keel) 한국연소학회 2006 KOSCOSYMPOSIUM논문집 Vol.- No.-
Experiments in methane-air low strain rate counterflow diffusion flames diluted with nitrogen have been conducted to study the behavior of flame extinction and edge flame oscillation in which flame length is less than the burner diameter and thus lateral conduction heat loss in addition to radiative heat loss could be remarkable at low global strain rates. Critical mole fraction at flame extinction is examined with velocity ratio and global strain rate. Onset conditions of edge flame oscillation and flame oscillation modes are also provided with global strain rate and added nitrogen mole fraction to fuel stream (fuel Lewis number). It is seen that flame length is closely relevant to lateral heat loss, and this affects flame extinction and edge flame oscillation considerably. Edge flame oscillations in low strain rate flames are experimentally described well and are categorized into three: a growing oscillation mode, a decaying oscillation mode, and a harmonic oscillation mode. The regime of flame oscillation is also provided at low strain rate flames. Important contribution of lateral heat loss even to edge flame oscillation is clarified.