• 한국학교수학회논문집
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• 제14권2호
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• pp.227-239
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• 2011

삼각형의 외심은 중학교 2학년에 처음 도입되는 논증기하의 부분에서 다루어진다. 증명을 통해 도형의 성질을 다루는 과정에 본질적으로 상당한 어려움이 내포되어 있긴 하나, 학생들 은 교과서에서 다루는 외심과 관련한 명제의 증명을 학습하는데 특히 많은 어려움을 겪는다. 따라서 본 연구에서는 우리나라 교과서에서 다루는 외심의 정의와 증명을 오랜기간 논증기 하의 교과서로 사용된 유클리드 원론 및 현행 미국 교과서의 방식과 비교함으로써 삼각형의 외심 지도에 관한 시사점을 끌어내고자 한다.

• 한국연소학회지
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• 제8권3호
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• pp.1-7
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• 2003

Combustion using oxygen enriched air is an energy saving technology that can increase thermal efficiency by the improvement of burning rate and by the high temperature flame. Flame figures, OH radical intensities, temperature distributions and emission concentrations were measured according to oxygen enriched concentration and swirl number in a turbulent diffusion flat flame. It appeared that flame figure became flat and NO concentration decreased with increase of swirl number, and that the flame temperature increased high with increase of oxygen enriched concentration. In particular, it was most significant between oxygen concentration $40{\sim}60%$.

• 대한후두음성언어의학회지
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• 제26권1호
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• pp.46-50
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• 2015

Background and Objectives:Laryngeal hyperkinetic movements of stuttering patients is similar to that of adductor spasmodic dysphonia. There has been studies on implementing botulinium toxin injections to treat stuttering. However, the opinions on the bouolinium toxin injection's effects on stuttering patients vary. In this study authors aim to figure out when the botulinium toxin injection improves stuttering patients. Materials and Methods:Stuttering patients who could receive botulinium toxin injection participated in this study. Age differences, gender differences, electroglottogrphic test, aerodynamic test in botulinium toxin injection treatment of stuttering were analyzed. Results:The botulinium toxin injection had statistically significant impact on patients who showed low mean air flow rate during aerodynamic study. Conclusion:The botulinium toxin injection could reduce stuttering of patients with low mean air flow rate in aerodynamic study.

• 한국초전도ㆍ저온공학회논문지
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• 제16권4호
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• pp.53-56
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• 2014

A numerical method of magnetic field calculation for the air-core solenoid is presented in this paper. In application of the Biot-Savart law, the magnetic field induced from the source current can be obtained by a double integration ormula. The numerical method named composite Simpson's rule for the integration is applied to the program and the adaptive quadrature method is used to adjust the step size in the calculation according to the precision we need. When the target point is in the solenoid and the intergrand's denominator may be zeroin the process of calculation, the method sill can provide an appropriate result. We have developed a program which calculates the magnetic field with at least 1ppm precision and named it as rzBI() to implement this method. The method has been used in the design of an MRI magnet, and the result show it is very flexible and convenient.

• 유통과학연구
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• 제14권9호
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• pp.47-64
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• 2016

Purpose - This study reviews the past studies that have researched Vendor Managed Inventory (VMI) as a well-known supply chain collaboration program. The main goals of this study are to figure out how VMI brings significant benefits to the supply chain system and suggest additional areas that future studies would address to discover the true nature of VMI. Research design, data, methodology - This study conducts literature reviews on numerous studies that have researched VMI. The past studies are classified in terms of several main issues that have been commonly addressed by many researchers. This study also identifies three key collaborative features of VMI, which possibly explain why VMI improves the supply chain performance. Results - This study finds out that most past studies focused on a limited research issues about VMI. Many researchers have considered integrated decision making and information sharing to be key features that enables VMI to improve the supply chain performance. Conclusions - Based on the findings from the literature review, this study suggests that future studies on VMI take account of new research issues and pay attention to cost payment that researchers have rarely addressed.

• 한국가정과교육학회지
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• 제9권2호
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• pp.17-30
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• 1997

Purpose of this study is to analyze the validity of textbook content on practical arts for the 6th curriculum, to grasp the content problems and to propose the strategy of reformation to be satisfied with consumer better than supplier. The data collected from 196 elemantary school teachers who lived in Gyungsang-namdo and analized by SPSS/PC(sup)+ package program. The statistical methods used for analysis were frequency, descriptives, validity, t-test, oneway ANOVA. The major findings can be summarised as follows： 1. The textbooks on practical arts for 3rd, 4th, 5th and 6th grades showed unbalanced division for picture, figure, table unite and evaluation type of all units doesn’t show diversity. 2. The validity of textbook contents on practical arts was found to be the highest for 3rd grade textbook and the lowest for 6th grade one. Among the validity of the evaluation items,‘differentiation with other subject’and ‘usefulness of living’showed high scores, wheres ‘fitness of child level’marked lowest score. 3. There was no significant difference Among the validity contents of teachers based on socio-demographic variables.

• 복식문화연구
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• 제11권6호
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• pp.879-888
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• 2003

Song is a significant message with organic combination of relics and melody. As such, songs could be an important way to deliver messages in the relics and melodies. Among the several kinds of songs ‘popular song’ is the most common and has the strongest effect on the public. On this purpose, total 700 songs published from 1995 to 2001 popular songs have been researched after extracting 100 songs chronologically in regards of broadcasting times, popularity rankings and records of yearly awards during its production year. These selected popular songs have been collected and studied before sampling the expression of the costume included in the relics. Clothes, hair styling, make-up, shoes & purses, accessaries and body figure, etc. are covered In this study. As the recent symbolism embedded in the relics of popular songs is closely related with our generation background, public preference & dislike and the change of modem costume, it shows the symbolism of costumes evidently again.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2013년도 춘계학술대회
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• pp.239-241
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• 2013

This paper surveyed & analyzed the career path of the 586 female cadets who graduated from the Korea Maritime University. According to the analysis, 154 graduates have the seafaring experience onboard, while 432 have no chance to work onboard. The figure indicated that one of the challenge is the number of female maritime officers who can engage in the boarding works was relatively limited. However, it is significant implication that about 80% of the graduate have been employed in a maritime industry including shipping, shipbuilding, public sectors and etc.

• 한국의류학회지
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• 제29권2호
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• pp.220-230
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• 2005

The purpose of this study was to compare clothing benefits and the types of fashion information sources according to family life cycle. Subjects were selected through stratified sampling technique in Seoul and suburban area. Collection of the research data was made using a self-administered questionnaire survey. Factor analysis, ANOVA, and Duncan test were used to conduct the data analysis on 562 out of 600 questionnaires. Clothing benefit variables were reduced to five factors : fashion/social status, individuality, function/comfort, figure flaws compensation, and economic value. The result showed significant differences on 3 clothing benefits(fashion/social status, individuality, and function/comfort) and 5 fashion information soures (celebrities, street fashion, T.V commercial, Internet/home shopping, fashion catalog) according to family life cycle.

• 한국실내디자인학회논문집
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• 제15권1호
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• pp.79-87
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• 2006

'Fantasy' in this study is Not something fantastic in the used to be-way we can Imagine easily. This study is to figure out 'fantasy' and 'the fantastic' as a significant measure to interpret the contemporary space-time. In particular, it analyzed that fantasy have influenced on some kind of specific trend what is expressed a tendency to contemporary interior designs of informal, indeterminacy and unpredictability. Fantasy is represented as 'the fantastic space' through spatial revealing, concealing, distorting, and connoting. Representation becomes a major issue in almost many kinds of knowledge-system that start from the mind to go out to the world in a realistic or idealistic way. Therefore, the fantastic space reconstructs the reality while making itself through to representational creation-process. It is Important for fantasy and the fantastic space to help detect behind beneath the reality more than what we know.