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가상경계기법을 이용한 다양한 원형 건물구조에서의 최적 환기 효율 분석
김성연(Sung yeon Kim),임정섭(Jung-Sub Lim),최정일(Jung ill Choi) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12
본 연구에서는 가상경계기법과 레이놀즈 평균 난류 모델을 이용하여 개방공간에서 복잡한 구조를 지나는 유체의 흐름에 대해 조사하였다. 단지형 구조, 중정을 가지고 있는 복합건물 구조를 가지는 경우 실내 환기 외에 실외 환기에 대한 고려가 필요하다. 중정을 가지는 다양한 원형 건물 구조에서의 자연환기 효율을 유체역학적으로 평가하고자 한다. 중정에서의 유속, 난류운동에너지 등의 분석을 통해 자연환기 효율을 조사했다. 효율은 구조를 이루고 있는 건물의 개수가 많을수록 증가하였으며, 유동방향과 중정 입구사이의 각도가 작을수록 높은 것으로 나타났다.
리메이르 ( Meile Le ),박윤모 ( Yunmo Park ),임정섭 ( Jeong-sub Lim ),정의철 ( Eui-chul Jung ) 한국디자인트렌드학회 2021 한국디자인포럼 Vol.26 No.2
Background Artificial intelligence) (AI) is a branch of machine learning that facilitates the design and enhances designers’ efficiency. AI has increased the assistants’ efficiency in searching appropriate images. With the rate AI is developing, new tools will be developed that co-work with a designer to help apprentices learn the designer’s style and understand the design intent. Therefore, reasoning design intent and design elements are the important foundation for AI-based design tools. The purpose of this study is to provide such a foundation by proposing a model to infer the relationship between design intent and elements. Methods We observed and recorded the design intent and how a designer designs with elements. Then, we analyzed causal relations and probability between design intent and elements according to Bayes' theorem. In addition, we constructed an ontology to generate the Bayesian network. Finally, we simulated design intent reasoning based on the selected designer’s elements. Result We proposed an ontology and Bayesian Network for the design intent from the selected elements and provided appropriate design elements recommendations for specific design intent. Conclusion We built an ontology to make programs understand the relationship between design intent and design elements based on the observation of a designer’s work. We proposed a Bayesian Network to reason the designer’s intent from the designer’s selected elements and offer design suggestions based on the design intent. This study is a foundational study for the development of AI design tools that co-work with a designer like apprentices.
임정섭,서봉한 한국스포츠리서치 2001 한국 스포츠 리서치 Vol.12 No.4
The purpose of this study is to investigate problems and to find out solutions for efficient management of exercise prescription centers through the comparison of use patterns and satisfaction of using exercise prescription centers by sex and age. A group of 150 persons who are the members of two sports centers and two health centers located in Ulsan was the sample object of this research. In order to analyze use patterns including frequency, purpose, information acquisition, and selection motive by sex and age, a Chi-square test has been performed. Satisfaction to facility, number of members, and excercise program, and post satisfaction was analyzed by one-way ANOVA. Significance test was accepted at α=.05. The analysis of the satisfaction to the use of the exercise prescription centers by sex and age are as follows; First, the satisfaction related to facilities was insignificant between the groups of sex, but it was significant among the groups of age. For instance, under fifties were satisfied with facilities. Second, the satisfaction related to the number of center members was insignificant by sex or age. Third, the satisfaction related to the exercise program was insignificant by sex or age. Fourth, there was no significance for the post satisfaction by sex or age. In conclusion, the results of this study indicate that the centers should devise various exercise programs and improve existing services in order to increase members' satisfaction. In addition, the managers at the exercise prescription centers should be aware of consumer behavior, so that they could operate the centers more effectively with consumer satisfaction.