• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2007년도 추계학술대회 논문집
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• pp.321-322
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• 2007

• 펄프종이기술
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• 제42권4호
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• pp.1-14
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• 2010

To investigate natural dyeing properties of bast fiber, properties of pre mordanting dyeing of sappan wood, gardenia and gallnut such as K/S values, developed color, and fastness were evaluated. Silk showed the most increased K/S values by pre mordanting treatment when Fe was uses as a mordant. The optimized amount of Fe was 3%. The colors of sappan wood was a series of YR. After pre mordanting treatment with Fe, the colors of bast fiber of mulberry and silk showed a series of RP, and the color of cotton showed a series of Y. The color of gallnut was a series of Y regardless of pre mordant treatment. Sappon wood (YR), gardenia (Y), and gallnut (Y) showed various colors such as YR, R, and RP, respectively. Sunlight fastness was not improved by pre mordanting treatment. The effect of pre mordanting treatment was not good. Especially the treatment with Al showed poor sunlight fastness.

• 부모자녀건강학회지
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• 제12권2호
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• pp.119-130
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• 2009

Purpose: This study was designed to examine the effects of Therapeutic Play Program on the pre-operative anxiety of the preschoolers. The design of this study is a quasi experimental study of non-equivalent control group pre-test/post-test design. Method: The subjects of this study were the hospitalized preschoolers receiving an operation in C University Hospital. These totalled 60 and were divided into a 30-person-control-group and a 30-person-experimental-group. The data was collected from June 1 to October 5, 2002. The Experimental treatment was carried out according to Therapeutic Play Program developed by Researcher. The instruments used in this study were the observational records for Hospitalized preschooler's Anxiety behavior response, pulse rate, and respiration rate of the preschooler's. The collected data were analyzed with real numbers, percentage, t-test, and $X^2$-test, using SPSS WIN 11.0 program. Result: Hypothesis, "The experimental group provided with a Therapeutic Play Program would show a lower score of the pre-operative anxiety behavior(t=13.79, p=.00), pre-operative pulse(t=4.50, p=.00) and pre-operative respiration rate(t=4.29, p=.00) response than when the control group was not provided", was supported. Conclusion: Therapeutic Play Program is determined to be useful for reducing Pre-operative anxiety of the preschoolers.

• 한국염색가공학회지
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• 제23권2호
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• pp.69-75
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• 2011

A pre-treatment process has been developed for natural dyeing of wool by which the dyed materials have been imparted antimicrobial efficacy against both gram-positive and gram-negative bacteria durable up to 20 washes. In this process, wool fabrics were treated with citric acid under oxidizing condition prior to dyeing. The treated fabrics were then dyed with four different types of natural dye powders obtained from leaves of silver oak, wattle, tanner's senna and flame of forest. All the natural dyes produced yellowish brown colour on wool fabrics. The washing and light fastness properties of the fabrics subjected to pre-treatment were one grade higher compared to those of the dyed fabrics without pre-treatment. The pre-treated wool fabrics showed antimicrobial efficacy against both gram-positive bacteria (Staphylococcus aureus) and gram-negative bacteria (Escherichia coli). The fabrics dyed without pre-treatment showed antimicrobial efficacy against gram-positive bacteria (Staphylococcus aureus) only. The durability of antimicrobial efficacy was higher in pre-treated and dyed wool fabrics compared to the dyed fabrics without pre-treatment.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2009년도 한국우주과학회보 제18권2호
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• pp.38.3-39
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• 2009

Equatorial Plasma Bubble (herafter, EPB) is a common feature in low-latitude F-region during the night time. Since EPB causes significant impacts on the satellite communication and navigation systems, its accurate forecast is highly demanded by the GNSS users. Thus, further understanding of these features and their configuration is a challenging issue in space weather studies. The day-to-day variability of the plasma bubble activity was investigated by analyzing the TIMED/GUVI, ROCSAT-1, DMSP, and CHAMP satellite data. The pre-reversal enhancement (PRE) is known as the most important single parameter for the onset of plasma bubbles but we do not know yet to what extent the day-to-day variability of the bubble activity can be attributed to the PRE. We obtained the magnitude of the PRE from ROCSAT-1 and the occurrence of bubbles in relation to the PRE was investigated by using the coincident observations of EPBs from TIMED/GUVI, DMSP, and CHAMP. By conducting one-to-one comparison of the PRE characteristics with the EPB occurrence we examined the role of the PRE in the onset of EPBs.

• 실천공학교육논문지
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• 제9권2호
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• pp.125-132
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• 2017

본 논문은 효과적인 학습을 제공해주는 교수법으로 알려진 플립러닝을 신호처리 교과목에 적용한 사례에 대한 연구이다. 수업을 위해 사용된 교수학습 모형과 3개년간 시행 사례를 기술하였다. In-class는 비교적 성공적인 수업이라 판단할 수 있으나, Pre-class에서 제공된 동영상 자료의 편성과 학습 여부에 대한 평가는 개선이 필요하였다. 또한, Pre-class와 In-class를 효과적으로 연계하는 방법에 대한 연구가 필요하다고 판단된다.

• 한국문헌정보학회지
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• 제49권1호
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• pp.279-296
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• 2015

본 연구의 목적은 예비사서들이 도서관 견학프로그램을 통해 다양한 도서관의 사서직무들을 직접 보고 들어봄으로써 사서 핵심능력 중요도 인식에 어떠한 변화가 있는지를 밝혀 사서양성기관, 도서관의 견학담당 사서, 그리고 예비사서들에게 도서관 견학이 갖는 교육적 의의를 제시하기 위함이다. 도서관 견학프로그램에 참여한 예비사서 29명을 대상으로 도서관 견학프로그램을 적용하기 사전 사후 사서 핵심능력 중요도 인식에 관한 설문조사 분석 결과, 도서관 견학이 예비사서들의 사서 핵심능력에 대한 중요도 인식에 통계적으로 유의미한 차이가 있었다. 예비사서의 도서관 견학프로그램이 향후 사서 직무수행을 위한 사서 핵심능력 중요도 인식에 영향을 주어 예비사서의 자기주도적 학습에 동기유발이 될 수 있으며 사서양성기관에서는 현장기반의 사서 양성 교육과정 개발과 실행에 필요한 기초자료로 활용될 수 있다는 점에서 연구의 의의가 있다.

• East Asian mathematical journal
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• 제33권2호
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• pp.177-197
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• 2017

The purpose of this study is to investigate and analyze the understandings of elementary pre-service teachers about 'estimation' in the elementary mathematics. Together with this analysis, we identify elementary pre-service teacher's Mathematical Pedagogical Contents Knowledge(MPCK), especially focusing to Subject Matter Knowledge(SMK). In order to this goals, we investigate contents relating to 'estimation' from $1^{st}$ curriculum to 2009 revised curriculum and compare 'rounding up', 'rounding off', 'rounding' in the elementary mathematics textbooks. As results of investigations, 'estimation' has been teaching at the 'Measurement' domain from $3^{rd}$ curriculum, but contexts of measuring weaken from $7^{th}$ curriculum. 'Rounding up(off)' is defined three types in the textbooks from $1^{st}$ to 2009 revised curriculum. And we examine elementary pre-service teachers through the questions on these 'estimation' contents. On the analysis of pre-service teacher's understanding relating MPCK, four themes is summarized as followings; the understanding of '0' in the 'rounding up', the cognitive gap between 'rounding up' and 'rounding off', the difference of percentage of correct answers according to types of question in the 'rounding up', and the difference between the definition of 'rounding up' and the definition of 'rounding'.

• 한국의상디자인학회지
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• 제17권2호
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• pp.45-61
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• 2015

In order to analysis on color difference of natural dyes, I have dyed Hanji, cotton, silk fabric and exposed them to carbon arc light. The results of experiment have been analysed by wavelength of maximum absorption, amounts of dye uptake, color difference, Hunter's value and Munsell's value. Gardenia Jasminoides is monogenetic dye, but it gained darker color by pre-mordanting method used Al mordant agent and greenish yellow color by Fe mordant agent. whereas Curcuma, an Amur cork, and bud of pagoda tree are shown as greenish yellow color, and A barberry root, Betel nut, and Rhubarb are shown as reddish yellow color. these gained khaki colored dyed fabric by Fe mordanting. In addition, Sappan wood showed great result in pre-mordanting. Especially, it gained dark red color by Al pre-mordanting. The pink color was shown by post-mordanting. and Logwood showed great dyeing result in Hanji and cotton better than silk. Specially pre-mordanting was effective. Hanji and cotton showed greenish blue color by Al pre-mordanting, and silk showed brown color.

• 문화기술의 융합
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• 제9권1호
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• pp.281-286
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• 2023

우리는 부산광역시에 소재한 대학교의 유아교육과에 재학 중인 예비유아교사 297명을 대상으로 교직윤리와 공감능력이 아동권리인식에 미치는 영향이 어떠한 지를 알아보고자 하였다. 이를 통해 질 높은 유아교사 양성기관의 인성 함양 프로그램 개발을 위한 기초자료를 제시하는데 연구 목적이 있다. 우리는 다음과 같은 연구결과를 도출하였다. 첫째, 예비유아교사의 교직윤리와 공감능력 및 아동권리인식의 인식 정도를 살펴본 결과 교직윤리, 아동권리인식, 공감능력 순으로 평균값이 높게 나타났다. 둘째, 예비유아교사의 공감능력, 교직윤리와 아동권리인식, 공감능력과 아동권리인식 간에는 정적인 상관관계가 있는 것으로 나타났다. 셋째, 예비유아교사의 교직윤리와 공감능력이 아동권리인식에 미치는 상대적 영향을 살펴본 결과 교직윤리 중 사회윤리가 가장 강력한 예측변인으로 나타났다. 우리는 본 연구에서 예비유아교사의 아동권리인식 증진을 위한 다양한 접근방법에서 교직윤리와 공감능력이 효과적임을 규명하였다. 그리고 우리의 연구는 예비유아교사가 지녀야 할 바람직한 교사의 인성 함양을 위한 교육적 기초자료를 제공했다는 점에서 그 의의가 있다.