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최태수,김응수 한국원자력학회 2023 Nuclear Engineering and Technology Vol.55 No.9
Smoothed Particle Hydrodynamics (SPH) is a Lagrangian computational fluid dynamics method that has been widely used in the analysis of physical phenomena characterized by large deformation or multiphase flow analysis, including free surface. Despite the recent implementation of eddy-viscosity models in SPH methodology, sophisticated turbulent analysis using Lagrangian methodology has been limited due to the lack of computational performance and numerical consistency. In this study, we implement the standard and dynamic Smagorinsky model and dynamic Vreman model as sub-particle scale models based on a weakly compressible SPH solver. The large eddy simulation method is numerically identical to the spatial discretization method of smoothed particle dynamics, enabling the intuitive implementation of the turbulence model. Furthermore, there is no additional filtering process required for physical variables since the sub-grid scale filtering is inherently processed in the kernel interpolation. We simulate lid-driven flow under transition and turbulent conditions as a benchmark. The simulation results show that the dynamic Vreman model produces consistent results with experimental and numerical research regarding Reynolds averaged physical quantities and flow structure. Spectral analysis also confirms that it is possible to analyze turbulent eddies with a smaller length scale using the dynamic Vreman model with the same particle size
최태수,고석원 한국섬유공학회 1994 한국섬유공학회지 Vol.31 No.1
Tris(4-bromophenyl) phosphate(BPP). bits(4-bromophenyl) sodium phosphate(BSP) and 4-bromo-phenyl disodium phosphate(BDP) were synthesized by interracial reaction. Flammability of PET fabrics treated with these three synthesized flame retardant was investigated through LOI measurement and times of flame contact. LOI increased with the increase of content of BPP BSP and BDP in fabrics and satisfactory flame retardancy. LOI 28, could be obtained at 3~4% of add-on.
피나투보 아이타족을 통해본 선교와 상황화의 신학적 제언
최태수 남서울대학교 2004 남서울대학교 논문집 Vol.10 No.3
Ⅰ. Introduction The Philippines is an archipelago of many varied indigenous groups which are called Aeta. The Aetas can not maintain their isolation any more, because of the fatal eruption of Mt. Pinatubo 1991, they were exposed to the world suddenly. The cost of destruction caused by eruption of Mt. Pinatubo, heaven turned to the hell to the Aetas who live in there. Since 1991, I have worked as a Korean Methodist Missionary for the Aetas in that area. This study based on my mission experience with Aetas. Ⅱ. Contextualization. The idea of contextualization is to frame the gospel message in language and communication forms appropriate and meaningful to the culture, and to focus the message upon crucial issues in the lives of the people, in the case of my mission field, the Aetas of Mt. Pinatubo. The contextualized indigenous church is built upon culturally appropriate methods of evangelism; the process of disciplining draws upon methods of instruction that are familiar and part of the local traditions of learning. The structural and political aspects of leadership are adopted from patterns inherent in the indigenous culture the gospel is preached rather than imported from denominational organizations in the home countries of missionaries. Ⅲ. Conclusion With considering all the cultural background and analysis of date of the Aetas, as our mission respondent, we need to make some access plans to them for the Gospel. Their poor environment, like no-electricity, lack of water and lack of food, face to face communication system and strong kinship, make us Wholistic evangelism program. Aetas people have their own culture therefore we can approach them through their culture. Our mission presentation of word of God follows the Scriptures pattern on how the Lord revealed Himself to us, that is, through progressive revelation within the context and framework of history. There is the Gospel but as many different expressions of faith.
Changing Epidemiology of Extended Spectrum Beta-Lactamases Pathogen of Urinary Tract
최태수,유구한,이선주 대한요로생식기감염학회 2015 Urogenital Tract Infection Vol.10 No.2
This review covers the recent findings on extended spectrum beta-lactamases (ESBL) pathogens, focusing on the epidemiology of infection due to this pathogen. Use of ESBL is growing rapidly and widely. CTX-M-15 producing ESBL Escherichia coli is the most commonly encountered in clinical practice. In general, ESBL infections are represented by urinary tract infections, but they can also cause fatal infections involving the vascular system and central nervous system. Because E. coli is a common colonizer of normal intestine, increasing prevalence of ESBL-producing pathogens is particularly troublesome. In a situation where ESBLs are disseminated in the community, the ideal control of this multidrug-resistant pathogen will be challenging. Precise data on the prevalence and risk factors of ESBL-producing microorganism are still undetermined. More epidemiological studies are needed for the question to be answered. In order to maximize efficiency of treatment, information on the trend of increasing numbers of ESBLs is also needed on persistence of ESBLs in carriers as well as better understanding of how antibiotic treatment and other risk factors affect their persistence and further dissemination. The global emergence of multidrug-resistant ESBL pathogen has recently led to critical treatment problems. Early detection, adequate antibiotic therapy, and effective prevention are necessary for achievement of a safe community.
Ministrial Ethics on Culture in Korean Context
최태수 한국기독교사회윤리학회 2007 기독교사회윤리 Vol.13 No.-
복음과 문화는 신학의 중요한 주제이며 복음과 문화의 관계설정을 통해 한국사회와 교회를 설명하려는 노력을 많은 신학자들이 해왔다. 본 논문은 복음과 문화의 관계를 한국적 상황 속에서 정리하였으며 특별히 한국인이 느끼는 여러 감정 중 기분(氣分) 이라는 단어의 개념 정리를 통해 한국문화의 특색을 정리하였다. 또한 본 논문은 전통적인 한국의 문화적 특징을 한국인의 세계관으로 정리하고 한국의 전통문화가 현대사회 속에서 어떻게 문화적 변화를 일으켰는지 고찰하였다. 이러한 문화적 고찰을 토대로 성숙한 한국 현대사회의 교회 문화 발전을 위한 목회 윤리학적인 접근 방법을 소개해 보았다.
Christianity and Ministerial Ethic for Evangelism in Korea Context
최태수 한국기독교사회윤리학회 2006 기독교사회윤리 Vol.11 No.-
1990년대 들어서면서 한국 교회는 성장을 멈추고 성장속도가 둔화하기 시작한다. 교회성장의 위기 상황을 극복하고 부흥의 불을 살리기 위해 교회는 목회자의 윤리적 목회철학과 문화적 전도 방법을 교회성장의 새로운 모델로 삼아야 한다. 본 논문은 문화와 복음간의 관계를 정리하고 한국적 상황 속에서 문화 안에 자리잡은 한국고유의 세계관을 통한 새로운 전도 방법을 실천적 측면에서 연구하였다.