• Child Health Nursing Research
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• v.5 no.1
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• pp.18-26
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• 1999

The purpose of this study was to explore the late schooler's health concept and health behavior. The research was a descriptive method using a self-report questionaire which include semi open-ended questions. the subjects were 458 late schooler's from 4 to 6 grade. The results were as follows : 1. Perceived health concepts were ‘having no illness’ ‘having normal physical feature and strength’ ‘eating food well’ ‘take exercise’ ‘having a bright mind’ ‘having good interpersonal relationships’‘having strong will’ ‘recovering well’. 2. Perceived health behaviors to maintain health were ‘taking proper exercise’ ‘eating proper food’ ‘maintaining cleanliness’ ‘taking sufficient rest and sleep’ ‘having a vigor life and positive thought’ ‘having good interterpersonal relationships’ ‘receiving health check and immunization’. 3. Health behaviors carried out at present were ‘taking proper exercise’ ‘eating proper food’ ‘having a vigor life and positive thought’ ‘receiving health check an immunization’ ‘taking supplementary drugs’ ‘having a regular life’ ‘maintaining cleanliness’ ‘maintaining warmth’. 4. Perceived causes of illness were ‘taking inproper food’ ‘uncleanliness’ ‘insufficient warmth or environment’ ‘lack of exercise or overexertion’ ‘irregular life habits’ ‘contact with germs’ ‘mental stress’. 5. Perceived treatments of illness were ‘having sufficient rest and sleep’ ‘mental relaxation’ ‘eating food’ ‘ maintinging cleanliness’ ‘ maintaining warmth’ ‘taking supplementary drug’ ‘receiving medical treatment’.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.16 no.1
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• pp.5-26
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• 2005

Sookmyung Women's University Library developed a Cyber Learning Program for Information Literacy Education in the Fall semester of 2004. The program was enforced as a pass/fail prerequisite of the "Reading & Writing", a compulsory course for the first-year students. The paper describes why and how the university reached to the decision to initiate such a program. It identifies the factors which contributed to the early success of the program by analyzing the contents development process and the actual course management process. Suggestions for further developments is made by analyzing the technical and procedural difficulties faced using the Learning Management System(LMS).

• Journal of the Korean Electrochemical Society
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• v.15 no.3
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• pp.124-134
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• 2012

Environmental concerns over the use of fossil fuels and their resource constraints have spurred increasing interest of renewable energy, and the needs for energy storage from the renewable resources is getting rapidly increase. Na/$NiCl_2$ cell could be use electric vehicles as well as energy storage, because it has a high energy-efficiency, environmental-friendly, low cost. However, there remain several issues on improvement of materials, component, cell design, and process, to use in broad applications and to penetrate to market. This paper offers a comprehensive review on R&D status of the structure, chemistry, key materials, and cell design & manufacture for Na/$NiCl_2$ cells.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.4 no.2
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• pp.453-460
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• 2000

This paper introduces TIGS(Touring Information Guidance System) which provides information with faster access time than the human service. This system is designed specifically for a traveler. This TIGS provides tourists the informations such as destination, current map information, touring courses according to schedules, and lodging information. Furthermore, this system is implemented with touch screen for the user to apply easily. The presented shortest path algorithm using duality theory is applied to schedule the touring courses to reduce the time and the cost. The used map is raster manner instead of vectorial manner to provide user convenience. If this developed system should be established in the public space such as station, airport, and bus station, the useful touring information can be provided the tourists. This system can be easily applied to different local area.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.6
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• pp.281-288
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• 2013

This research is try to find what kind of LBS service & advertising methods are needed and demanded based on LBS technology by Delphi research method. The professional 50 panels are selected and questioned 3 times for what kind LBS service & advertising methods are needed and demanded. Through first questionnaire six category and detail kinds of LBS service & advertising method are found. and through second & third questionnaire degree of need & demand for detail LBS service & advertising methods are found. The result of this research will help to develope LBS industry & advertising industry by making them prepare for demanded LBS service.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.5
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• pp.259-265
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• 2018

As the supply method of products has become diverse and complex, problems such as manipulation of origin and product trace have occurred in the existing supply chain system. In order to deal with these issues, various Blockchain based studies have been actively carried in the SW industry and academy. However, there is a lack of comprehensive survey research on the applied Blockchain techniques, so that it hardly understand the pros and cons of the technologies. In this study, we intensively investigated the diverse studies from the Industrial and academic area based on the several criteria such as the goals, use of key Blockchain technologies, and IoT technologies.

• The Transactions of the Korean Institute of Power Electronics
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• v.5 no.5
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• pp.475-483
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• 2000

This paper describes designs about the power system of KITSAT-4 satellite. The KITSAT-4 power system is mainly composed of power stage and control stage. The power stage is a 200〔W〕 buck converter and control stages are hardware controller and software controller The hardware controller is PPT(Peak Power Tracker), battery voltage controller and software controller is battery current controller and direct duty controller. So the operation of power system has many advantages in that it can select controller according to reliable control and precise control. The controller design methods are presented and the small signal analyses are performed to verify system stability.

• The Transactions of the Korean Institute of Power Electronics
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• v.13 no.3
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• pp.229-236
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• 2008

Recently, multilevel H-bridge inverters have become popular in medium to high power ac drive applications. One of significant advantages of them is low harmonic contents in their input line currents thanks to the transformer with multiple phase-shifted secondary windings. This paper attempts to provide basic guidelines for the design of the phase shifting transformer windings and theoretical analysis of input line current harmonics of H-bridge inverters. The part I provides the derivation of basic relationships between input and output current of the transformer and the relationship between the phase shifting characteristics and design aspects of the transformer.

• The Transactions of the Korean Institute of Power Electronics
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• v.14 no.6
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• pp.431-439
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• 2009

In this paper, design procedures and voltage gain characteristics on LLC resonant converter with two transformers are described. Two transformers applied to LLC resonant converter are connected in series at the primary and connected in parallel at the secondary to reduce the unbalance of the primary current. Based on the theoretical analysis and simulation results, considering the characteristics of voltage gain and load variation, prototype of the 400W LLC resonant converter for 50inch PDP TV power module is built and the design procedures through the experimental results are verified.

• Journal of Korean Home Economics Education Association
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• v.13 no.3
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• pp.35-57
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• 2001

The purposes of this study were to investigate the current status on stating a summary of assessments in the practical arts education and to analyze the problem and find out the reformation strategy for them. To achieve these purposes. 180 teachers working in all elementary schools located in Daegu-city was selected by systematic cluster sampling method. The data were collected by using the mailed questionnaire developed by the researcher, and there was a response rate of 91.7%. Findings showed that it was not realized the valid and reliable stating a summary of assessments because it was not fixed throughly in the elementary school. So many teachers had difficulties in assessing the practical arts subject and stating a summary of assessments. They used the computer programs of CMI(Computer Management Instruction) . Black Box. SA(Stand Along) for stating a summary of assessments. It was recommended that valid and reliable criteria of stating a summary of assessments should provided, and on-the-job training on the developing and selecting a good tools for stating a summary of assessments should required. And. it was also required that the various codes of stating a summary of assessments should developed. and the various materials. equipments. and systems should provided for teachers.