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조지훈(Jihoon Cho),신동훈(Donghoon Shin),정태용(Tae-Yong Chung),황승식(Seung Sic Hwang) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
In this study, the CFD analysis was performed for internal flow of vane pump for engine oil. Normal vane pump was described to perform the CFD analysis. Two commercial program analysis used for vane pump analysis was performed. The more reliable performance evaluation data can be provided by deriving the result about the same shape in different programs. In this study, the CFD analysis was performed and the results of analysis of the discharge flow and pressure distributions were compared. The change of the pressure affects the performance of the pump. Thus, the reason for the noise problem and pulsation phenomenon by changing pressure and measures to achieve then are required in this study.
조지훈(JiHoon Cho) 한국문화연구학회 2021 문화연구 Vol.9 No.1
이 논문은 수행성 이론에서 논쟁이 되어왔던 허구적 발화의 위치를 다룬다. 수행성 이론의 선구자라고 할 수 있는 오스틴은 수행문에서 허구적 발화를 배제시킨 바가 있다. 이는 특히 문학을 중심으로 하는 후대 연구자들에 의해서 많은 비판을 받는다. 논문의 첫 번째 목표는 오스틴의 입장에서 이러한 비판에 답하는 것이다. 왜냐하면 허구적 발화의 배제는 단순히 실재와 허구라는 형이상학적 이분법에 근거한 것이 아니라 윤리적인 문제를 함축하기 때문이다. 논문의 두 번째 목표는 오스틴과 달리 허구적 발화를 포함시키고도 어떻게 수행성에서 윤리적 문제를 성찰할 수 있는지를 탐색하는 것이다. 이를 위해서 허구적 발화를 수행성 이론의 핵심으로 파악한 데리다의 시도를 살펴보고자 한다. I examine that the position of fictional utterance in the theory of performative speech acts in this article. Numerous literary scholars have criticized the performative speech acts proposed by John Austin, pointing out that Austin excluded fictional utterance from performative speech acts. Through this article, I propose alternative reading of Austin’s theory which can respond to the criticisms. The purpose of this study is twofold: First, I attempt to respond to these criticisms from Austin s point of view. The criticisms of Austin’s theory are constructed around the exclusion of fictional utterance; however, it should be noted that the exclusion is not grounded on the dichotomy of metaphysics, but it entails ethical considerations. Second, beyond Austin’s theorization, I explore the way to consider ethical issues in the theory of performativity while including fictional utterances. To do that, I review Signature event context by Jacque Derrida which offers the foundation to consider ethical issues within fictional utterance.
스마트홈 기반의 운동프로그램이 노인의 낙상관련 변인에 미치는 영향
황은진(Eunjin Hwang),조지훈(Jihoon Cho),공현중(Hyoun-Joong Kon),홍지영(Jeeyoung Hong) 한국발육발달학회 2017 한국발육발달학회지 Vol.25 No.4
The purpose of this study is to examine the effect of smart home-based exercise program on fallrelated risk factors in elderly women. The subjects were 23 elderly women (11 experimental group, 12 control group) aged 75.8 (±5.42) who were using the elderly welfare center in K-gu of Seoul. The smart home-based exercise program was composed of health monitoring and exercise program for the prevention of falls in the living space. The exercise program consisted of aerobic exercise and resistance exercise. It is performed for 40 ~ 50 minutes during 12 weeks by 3 times for a week. Body composition, fall, and plantar pressure variables were measured before and after the Smart Home Exercise Program. Two-way repeated measures (ANOVA) was performed using pre-post treatment changes to determine the difference in effect between the two groups. Body weight (p=.005), muscle mass (p=.027), and lower body lean (p=.032) increased in the exercise group after the 12-week smart home-based exercise program. Body fat percentage decreased significantly in the exercise group (p=.002). Daily efficacy(p=.003), activity efficacy (p=.033) and stability (p=.023) were increased significantly in the exercise group. There was no significant difference between the two groups in both the static and dynamic states in the plantar pressure. This study showed that smart home-based exercise program is effective for improving fall-related risk factors in elderly women. Further research is needed through integrated exercise programs that incorporate information and communication technology.