• Transactions of the Korean Society of Automotive Engineers
• /
• v.13 no.1
• /
• pp.147-152
• /
• 2005

The exhaust system of automobile is faced with random or spectrum types of fatigue loads during usage life and so needs to be closely estimated for quality and performance to have enough certainty on design endurance lift during preliminary design process. Structural operation conditions, operation load history, property of material and manufacturing process etc. should be considered by performing experiment approach. Using the software program for predicting fatigue life quickly and exactly in preliminary design stage saves plenty of time and cost generated by fatigue tests. In this paper, fatigue life prediction was performed on the basis of fatigue analysis using MSC/FATIGUE and load data from field test and the life of development items was estimated and compared through the results.

• Journal of Navigation and Port Research
• /
• v.30 no.7
• /
• pp.591-598
• /
• 2006

Port development has been remarkably increasing due to the progress of industrialization in ASEAN area. Especially, Vietnam has increased the international physical distribution in this area rapidly. The main issues facing decision makers at container terminals in Vietnam are how to expand the existing container terminals and construct new container terminals. In this paper, we performed the basic design based on simulation analysis in order to support the expansion of Quy Nhon port in Vietnam as a case study. The preliminary capacity analysis was conducted on the one berth at the port to analyze the scale of C/C(Container Crane)and yard area. Alternative scenarios were created based on the preliminary capacity analysis and the detailed simulation analysis was conducted for supporting the scenarios.

• Journal of The Korean Association of Information Education
• /
• v.22 no.1
• /
• pp.41-52
• /
• 2018

In Computational thinking is emphasized as a basic learning ability to grow into a key talent in the digital society. There is much interest and discussion on computing education nationally, and the Korean government has also included education in the curriculum. As a result of these changes, the level of computer literacy that preliminary teachers need to be imporved, and the role of computational thinking as a leader in digital society is being emphasized by teachers. Therefore, it is necessary to have a curriculum that can understand computational thinking through various programming learning from preliminary teacher education curriculum. In this study, we designed and taught programming curriculum for non-majored preliminary teachers. Through the developed questionnarie, we analyzed the affect of programming education on the preliminary teacher's development of computational thinking ability.

• Journal of Korea Technology Innovation Society
• /
• v.18 no.4
• /
• pp.641-666
• /
• 2015

Recently, it becomes more important to carry out the feasibility study on government R&D projects since the amount of R&D funds increases. For this purpose, until so far the general framework on the preliminary feasibility study for government driven research projects has been built and modified, and well applied to several domains. However, there is still the limitation in applying the method of preliminary feasibility study to system development research projects. The system development research projects have many different features compared to general research projects, for example, long-period development, lots of stakeholder involvement, multi-disciplinary works, and so on. Considering these characteristics, it is necessary to improve the method for the preliminary feasibility study. In this vein, this study deals with looking into the improvement points of the preliminary feasibility study in terms of the application of the system development projects.

• Journal of Korean Society of Rural Planning
• /
• v.27 no.1
• /
• pp.21-28
• /
• 2021

Since 2001, the Pangyo district multipurpose rural water development project has been promoted as a new target project for stable supply of agricultural water and improvement of the living environment of rural areas in Seocheon-gun. Detailed data analysis and logic must be reinforced, focusing on the items reorganized by the reorganization of the preliminary feasibility study. The purpose of this study is to promote the smooth promotion of projects by conducting a policy effect assessment following the reorganization of the preliminary feasibility study system. This study conducted a policy assessment of agricultural infrastructure improvement project for preliminary feasibility study. The policy assessment is divided into three parts: project implementation conditions, policy effects and special assessments. The newly established policy effect is to assess the job effects, living conditions impact, environmental evaluation, and safety evaluation that contribute to the quality of life. Sixteen policy assessment items were selected and evaluated quantitatively and qualitatively. The results of the study are expected to provide basic data for the comprehensive judgment of the preliminary feasibility study of agricultural infrastructure improvement project in the future.

• Proceedings of the Korean Nuclear Society Conference
• /
• 2005.10a
• /
• pp.107-108
• /
• 2005

• 한국기계연구소 소보
• /
• s.17
• /
• pp.145-156
• /
• 1987

A PSWATH is a computer program for the determination of principal particulars of Small Waterplane Area Twin Hull (SWATH) Ship design at the preliminary design stage. This paper describes the PSWATH system and the underlying theory. The major calculation modules are hull definition, resistance and propulsion, weight estimation and pitch stability analysis. Use of the model is illustrated by input, output and means of examples.

• Proceedings of the Korean Nuclear Society Conference
• /
• 1996.05c
• /
• pp.441-446
• /
• 1996

A preliminary conceptual design of the DUPIC fuel fabrication plant with production capacity of 400 MTHE/yr is presented. Capital and operating costs are also included. The levelized unit fabrication cost (LUC) for a reference mode was estimated at $509/kgHE, and sensitivity of some variable parameters to this reference was analysed.

• The Journal of the Korea Contents Association
• /
• v.20 no.6
• /
• pp.579-589
• /
• 2020

The purpose of this study is to understand the effects of ego-resilience, empathic ability of preliminary broadcasters on communication ability and to explore what university should do. The subjects of the study analyzed the relationship between self-resilience, empathic ability and communication ability among 333 preliminary broadcasters in the journal and broadcasting, media related departments of five universities in Busan. As a result of the research analysis, first, the preliminary broadcasters had the highest empathic ability, followed by communication ability and ego-resilience. Second, ego resilience according to the general characteristics of preliminary broadcasters was significantly different according to gender, major satisfaction, and club activities. There were significant differences according to satisfaction and club activities. Third, the correlation between ego resilience, empathic ability, and communication ability of preliminary broadcasters has a significant static correlation, and the correlation between empathic ability and communication ability is the highest. Fourth, the factors influencing communication ability were empathic ability, ego resilience, and gender. It will be meaningful as a study that the factors influencing communication ability related to preliminary broadcasters are empathic and ego resilience. Therefore, it is necessary to prepare a plan such as opening a curriculum to improve the communication ability of preliminary broadcasters.

• The Journal of the Korea Contents Association
• /
• v.16 no.8
• /
• pp.132-146
• /
• 2016

The purpose of this study was to develop a Korean version of the acceptance attitude scale and was to verify the reliability and validity of this scale. Study 1 was developed to acceptance attitude scale. First, we extracted the preliminary questions through literature research and previous studies. And the resulting data of to the open-ended questions and in-depth interviews with 324 college students were selected 24 preliminary questions using the content analysis method. Then through a survey of 355 college students conducted a reliability analysis and exploratory factor analysis, confirmatory factor analysis of the preliminary questions. As a result, 12 item with two sub-factors(externally acceptance, interally acceptance) was extracted. Study 2 was for the validation of the new acceptance attitude scale was conducted online surveys of 328 adults. Conducted a correlation analysis between new acceptance attitude scale and self-esteem, psychological wellbeing, depression, anxiety, fear of negative evaluation were verified for convergent validity. Finally, importance and limitation of this scale development and suggestions for future research are discussed.