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학업적 자기효능감, 가족의 응집성 및 적응성, 학급풍토가 아동의 학교생활적응에 미치는 영향
권태우(Kwon Tae Woo),조규판(Cho Gyu Pan) 학습자중심교과교육학회 2015 학습자중심교과교육연구 Vol.15 No.7
본 연구의 목적은 학업적 자기효능감, 가족의 응집성 및 적응성, 학급풍토가 아동 의 학교생활적응에 미치는 영향을 알아보는 것이다. 연구의 목적을 위해 경남 김해 소재 초등학교 6학년 219명을 대상으로 학업적 자기효능감, 가족의 응집성 및 적응 성, 학급풍토, 학교생활적응을 측정한 후 상관분석과 중다회귀분석을 실시하였으며, 연구결과 및 논의를 통한 결론은 다음과 같다. 첫째, 학업적 자기효능감, 가족의 응 집성 및 적응성, 학급풍토, 학교생활적응 간에 유의미한 상관이 있다. 둘째, 학업적 자기효능감은 학교생활적응에 유의미한 영향을 미친다. 셋째, 가족의 응집성 및 적 응성은 학교생활적응에 유의미한 영향을 미친다. 넷째, 학급풍토는 학교생활적응에 유의미한 영향을 미친다. 다섯째, 학업적 자기효능감, 가족의 응집성 및 적응성, 학 급풍토 중 학급풍토가 학교생활적응에 가장 많은 영향을 미친다. 따라서 학교생활 적응을 높이기 위해서는 아동의 개인적 특성을 고려하고 가족의 긍정적이 환경을 형성하며 학교생활 적응을 위한 학급분위기를 모색하는 등의 폭 넓은 연구가 필요 하다. The purpose of this study was to investigate the effects of academic self-efficacy, family cohesion and adaptability, and classroom climate on the school life adjustment of children. For the purpose of the study 219 sixth graders at an elementary school in Gimhae, Gyeongnam Province had been sampled for measuring academic self-efficacy, family cohesion and adaptability, classroom climate, and school life adjustment. Correlation analysis and multiple regression analysis had been used to analyze research questions. The Conclusions from the results and discussions are as follows. First, there were significant correlations among academic self-efficacy, family cohesion and adaptability, classroom climate, and school life adjustment. Second, academic self-efficacy had significant effects on school life adjustment. Third, family cohesion and adaptability had significant ieffects on school life adjustment. Fourth, classroom climate had significant effects on school life adjustment. Finally, classroom climate effects on school life adjustment most.
심적환(心適丸)이 산화적 손상에 따른 신경교세포 보호효과 및 국소 뇌혈류량 변화에 미치는 영향
권태우 ( Tae Woo Kwon ),손영수 ( Young Soo Son ),조수인 ( Su In Cho ),김영균 ( Young Kyun Kim ) 대한본초학회 2008 大韓本草學會誌 Vol.23 No.4
Objectives: SimJeok-Hwan (CP, Cardiotonic Pills) was made to treat patients with coronary arteriosclerosis, angina pectoris and hyperlipidemia. This study was designed to investigate the effects of CP on Proliferation rates neuroglia cells and protective effect of CP against oxidative stress, and also investigate the effects on regional Cerebral Blood Flow (rCBF) in normal rats. Methods: In this experiment, effects of CP on proliferation rates of neuroglia cells were measured using modified MTT methods. Oxidative stress was induced by treatment with 200 mM of hydrogen peroxide for 2 hr. rCBF and MABP were measured using Laser doppler flowmeter. Results: Treatment with CP elevated proliferation rates in C6 cells. In addition, CP protected cell death of C6 cells induced by oxidative stress. In results, rCBF was elevated by treatment with CP in normal rats. But, Mean Arterial Blood Pressure (MABP) did not affected by CP. In addition, the elevation of rCBF was blacked by pre-treatment with 1 mg/kg of indomethacin effectively. On the other hand, pre-treatment with 0.01 mg/kg of methylene blue did not affect rCBF level in normal rats. Conclusions: In conclusion, these results suggest that CP can act as anti-oxidant to protect neuroglia cells and also suggest that CP can elevate rCBF, which are involved in cyclooxygenase pathway.
원형팬 타입 디퓨저 기류 해석을 위한 단순화 모델 개발
권태우(Tae Woo Kwon),황일남(Ilnahm Hwang),박재호(Jaeho Park),박신영(Shin Yeong Park),하만영(Man Young Ha) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.11
This study proposed a simplified model for round-pan type diffusers to accelerate the simulation. The diffuser was simulated with a simple geometry and modified boundary conditions using the simplified model. The flow and thermal characteristics for various diffusers were described using the simplified model during the cooling operations. The results of present model were validated with the previous numerical results obtained from full complex model as well as the experimental results available in literature. The results of validation studies show a good agreement in terms of velocity and temperature distributions. The proposed model is enough to predict the flow and thermal characteristics in the room.
분자동역학을 이용한 계층 구조를 갖는 표면의 소수성에 대한 연구
권태우(Tae Woo Kwon),장준경(Joonkyung Jang),Matthew Stanley Ambrosia,하만영(Man Young Ha) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12
Using all-atom molecular dynamics simulation, we investigated the wetting behavior of a water droplet on a surface texturized with nanoscale pillars. We studied the surfaces with nonhierarchical and hierarchical roughnesses by systematically varying the pillar height. A surface decorated with a hierarchical roughness showed an enhanced hydrophobicity in that the droplet on such a surface prefers the Cassie-Baxter state over the Wenzel state. A hierarchical roughness also gave an enhanced contact angle of a droplet. Even a hydrophilic surface (contact angle is < 90°) turned hydrophobic (contact angle > 90°) with a hierarchical roughness on it. We show the adhesion energy of a droplet to its underlying surface is correlated with the contact angle and therefore is a fundamental measure of the wettability of the
분자동역학을 이용한 불균일 표면 위의 수액적의 동적 거동에 대한 연구
권태우(Tae Woo Kwon),하만영(Man Young Ha),Matthew Stanley Ambrosia 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
In the present study, the dynamic behaviors of the water droplet on heterogeneous surface were investigated using molecular dynamics simulation. The surface consisted of the plat plate and the pillar structure which had different surface energy each other. We conducted the simulation in two steps. As a result of the first step, an initial water cube reached an equilibrium state as a water droplet. In the second step, we applied a constant body force to the static water droplet obtained from the first step and evaluated the dynamic behaviors of the water droplet. The dynamic behaviors of the water droplet, which could be classified according to their shapes, depended on the pillar characteristics (e.g., the surface energy and the height) and the magnitude of the applied body force.
가맹점의 러닝로열티 지불의도에 영향을 주는 서비스품질요인의 우선순위 연구
권태우 ( Tac Woo Kwon ),최강화 ( Kang Hwa Choi ) 한국경영공학회 2011 한국경영공학회지 Vol.16 No.1
This research is to improve the operational framework for Korean franchise business in food service by investigate the cause and effect relationships with those factors which have been provided the service from franchisor to franchisee. Although the franchise industry grows in Korea rapidly, the stability of business is still in doubt because business cycle of franchisor is get shortened. In this paper would find out the reason why the franchisor have the unstable status in Korea. The main reason was the instability of profit structures for franchisor which would be burden the franchisees that worsen the franchisor financial status. Comparing with the US franchise system, the biggest different was the running royalty program. So, this paper would prove how the running royalty program would help the franchisor to be the stable status with the continuous payment from the franchisees, and also show the how this payment would returned with better service to the franchisees. Throughout this study, It would examinate the franchisee`s intentions of running royalty payments since there is no running royalty cases in Korean franchise industry in food service. it would investigate willingness of running royalty payments with those five service quality factors which provided from the franchisor. It would analyze the hierarchy by its priorities among those SERVQUAL factors, which would affect to the intentions of running royalty payments by using AHP analysis.