• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2001.06a
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• pp.135-140
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• 2001

In metal cutting at the tool-chip interface, friction generates considerable amount of heat. Thus, tile .knowledge of wear properties or the cutting tool material in high temperature has been known as one of tile important factors in need of clarification. The authors presented the wear properties of 5%V-5%Co-1%Nb high speed steel, fabricated by powder metallurgy, in room temperature in a previous article. The objective of this paper is to clarify tile effects of temperature ell its wear properties. Wear tests in sliding conditions under various temperatures have been conducted. The results indicate that tile wear properties of tile tool material in high temperature as well as in room temperature are excellent. It may be deduced that the oxide layer formed on the vol-n surface at high temperature is stable enough to prevent wear due to tile high temperature strength of its matrix.

• Transactions of Materials Processing
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• v.5 no.2
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• pp.97-104
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• 1996

It is very important to obtain the knowledge of loads and flow patterns in most processes because these information are the fundamental data of die design and process design. The objective of present study is to investigate loads and metal flow patterns for various process conditions in flat die extrusion of square-bars from circular billets. For analyzing the metal flow patterns of the billets photo etching is used on sections of split specimen. From this method metal flow patterns are analyzed for various area reductions friction factors and punch stroke through the process from initial-stage to final-stage. Experiments are carried out with hard solder billets at room temperature.

• Korean Journal of Acupuncture
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• v.26 no.4
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• pp.157-172
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• 2009

Objective : The purpose of this study is to review and summarize the research on a burn. Methods : We reviewed 16 studies about burn which were relative to oriental medicine. We selected those studies from Korean studies Information Service System and Korean Traditional Knowledge Portal. Result : Selected 16 studies were divided into 12 trial articles, 3 case reports and 1 review article. Most of studies reported that oriental medical treatment of burn were effective. Conclusion : Further studies needed for burn and more clinical data would be needed to prove the effects of oriental medical treatment in burn.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.6 no.4
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• pp.309-314
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• 2005

This paper analyzes techniques that extract objective information from distributed web databases for bioinformatics based on relationship among information. Moreover, we discuss the design and implementation of a method for knowledge enhancement in respect of protein information. Web data extractor can be constructed by using a manual, semi-automatic, or automatic way. Data extractor generally makes use of identifiers in order to search and extract targeting information from a specified web page. This paper presents a design and implementation for the protein databases of an organism by utilizing web data extraction techniques.

• World Technopolis Review
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• v.1 no.2
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• pp.107-117
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• 2012

As reflected in the title, the main objective of the paper is to explore an appropriate approach to promote technological innovation for developing countries. Aiming to this goal, the paper studies three main innovation system approaches, whose implantation is being attempted in developing countries: first, national innovation systems (NIS), which was developed in OECD countries; second, the system of innovation for development (SID), which is a concept that tries to adapt NIS to developing countries; and third, inclusive innovation which is a pro-poor innovation system. Based on the strengths and the weaknesses of each concept and their potential adaptation in developing countries, the paper proposes an integrated approach of innovation system for developing countries. Compared to developed countries, the concept of innovation system in developing countries should be more complex because it involves not only the formal sector such as enterprises, universities, research institutes, government, and financial system but it also involves NGOs, informal companies, grassroots inventors, local and indigenous knowledge, etc. The last part of the paper discusses the ideas that innovation stakeholders in developing countries can use to promote their proper innovation system.

• Food Science and Biotechnology
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• v.27 no.6
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• pp.1755-1760
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• 2018

The objective of this study was to perform genetic diversity analysis of 13 strains isolated from South Korean foods by multilocus sequence typing (MLST). For typing, seven housekeeping loci (atpA, dnaA, dnaK, gyrB, pheS, pyrG, and rpoA) were selected, amplified and analyzed. Fifty-one polymorphic sites varying from 1 to 22 in each species were identified. Thirteen sequence types were generated with allele numbers ranged from 2 to 10. The overall relationship between strains was assessed by unweighted pair group method with arithmetic mean dendrogram and minimum spanning tree. In addition, combined spits tree analysis revealed intragenic recombination. No clear relationship was observed between the isolation sources and strains. The developed MLST scheme enhanced our knowledge of the population diversity of Leu. citreum strains and will be used further for the selection of industrially important strain.

• International Journal of Contents
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• v.15 no.1
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• pp.58-63
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• 2019

The objective of this study was to explore a specific method and strategy for 'Global Leadership Program Model' in order to enhance global leadership, which will emphasize the aspect of open mind and attitude toward diversity, cross-culture, communication, and global manner. This research explored the concept and characteristics of global leadership and competency based education, and analyzed effectiveness of satisfaction and participation on global leadership programs implemented in K University and analyzed the learners' recognition on the experience. Also, the research integrated the values of global leadership with the strategies of competency-based education, and finally developed 'Global Leadership Program Model'. As a result, 'Global Leadership Program Model' might be able to help students use knowledge and skill in various contexts, and serve in the community with responsibility. It is expected that students could be facilitated to perform task and role communicating with others, and they might know exactly what learning outcome they are required to establish and what standard is used to evaluate the performance, so that this environment might motivate them and encourage them to follow the learning process more effectively.

• Computers and Concrete
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• v.24 no.2
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• pp.117-123
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• 2019

Optimization is an important subject which is widely used in engineering problems. In this paper, an analytical method is developed for optimum design of reinforced concrete beams considering both flexural and shear effects. A closed-form formulation is derived for optimal height and rebar of beams. The total material cost of steel and concrete is considered as the objective function which is minimized during the optimization process. The ultimate flexural and shear capacities of the beam are considered as the main constraints. The ultimate limit state is considered for deriving the relations for flexural capacity of the beam. The design requirements are considered according to the item 9 of the Iranian National Building. Analytical formulas and some curves are proposed to be used for optimum design of RC beams. The proposed method can be used to perform the optimization of RC beams without the need of any prior knowledge in optimization. Also, the results of the studied numerical example show that the proposed method results in a better design comparing with the other methods.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.12
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• pp.5634-5653
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• 2018

Internet of things (IoT) is based on a global dynamic information network with cloud services where a great number of devices (things) exchange data to provide added-value services and products. There are several commercial and open source IoT platforms available in the market to connect devices to internet; however, they have cost and operational constraints that make them not suitable for academic projects. In this work, an IoT platform, known as Novus-io, is introduced in order to support academic projects for undergraduate students. With this platform and proper training, undergraduate students from different majors (not only from information technology and electronics) are capable to upgrade their school projects with IoT functionalities. The objective of this approach is to provide to any undergraduate student skills and knowledge on IoT, so they will be prepared, in their imminent step toward professionalism, to understand the relevance of digital services in today's world.

• The Korean Journal of Health Service Management
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• v.13 no.2
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• pp.67-79
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• 2019

Objectives: The purpose of this study was to analyze the factors affecting the utilization of emergency medical services and characteristics of emergency medical services according to age group among elderly individuals. Methods: This study conducted t-test and linear regression analysis on data of 1,960,575 participants to achieve the objective. Results: Analysis of the factors affecting the use of emergency medical services showed statistically significant correlation in all age groups. As the age of elderly people increased, the use of emergency medical service increased. Conclusions: Emergency medical policies are needed, such as coordinators with expert knowledge of medical and health administration and specialist emergency room operations that can provide specialized medical service for older patients.