• 방사성폐기물학회지
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• 제2권4호
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• pp.279-292
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• 2004

고준위폐기물 기준처분시스템의 건전성과 처분안전성의 실험적 검증에 필수적인 지하처분연구시설의 기본설계 도출을 위한 연구가 수행되었다. 먼저 지하처분연구시설의 부지에 대해 간단히 기술하고, 이 부지에 건설될 지하처분연구시설의 기본개념을 제시하고자 하였다. 제시된 기본개념을 충족시키기 위한 지하처분연구시설의 설계 요구사항을 설정하고, 이러한 기본개념과 설계요구사항을 바탕으로 지하처분연구시설의 기본설계를 수행하였다. 또 향후 지하처분연구시설에서 수행될 연구항목을 도출하였다.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2019년도 춘계학술논문요약집
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• pp.191-192
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• 2019

• 대한의생명과학회지
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• 제9권3호
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• pp.133-137
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• 2003

This study was conducted to investigate the influence of chlorella diet supplementation. Blood accumulation and urine excretion levels were measured after the Sprague-Dawley (SD) rats were fed on a chlorella diet supplementation mixed with 40 ppm of CdCl$_2$. Four groups tested for blood accumulation and urine excretion levels. All four groups fed on a basic diet with a cadmium mixture. The diet for the first group contained only basic diet and the cadmium added to the drinking water. The diet for the three other groups contained cadmium to the drinking water, and 1%, 5% and 10% of chlorella added to the basic diet. A concentration of cadmium for the first group showed a 3.2$\pm$0.4 $\mu\textrm{g}$/I blood accumulation level and 41.5$\pm$32.9 $\mu\textrm{g}$/l urinary excretion level, and the second group, which was fed on the basic diet with 1% of chlorella added and cadmium to the drinking water showed a $1.5\pm$0.6 $\mu\textrm{g}$/l blood level and only l4.l$\pm$1.6 $\mu\textrm{g}$/l urinary excretion level. The other two groups, which were fed on 5% and 10% of chlorella concentration and cadmium to the drinking water did not exhibit any notable effects greater than the group fed on 1% concentration of chlorella. The results suggest that the blood accumulation and urinary excretion of Cadmium are influenced by the chlorella diet supplementation from the concentration of 1% of the basic diet.

• ETRI Journal
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• 제27권5호
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• pp.491-496
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• 2005

An application specific processor for an H.264 decoder with a configurable embedded processor is designed in this research. The motion compensation, inverse integer transform, inverse quantization, and entropy decoding algorithm of H.264 decoder software are optimized. We improved the performance of the processor with instruction-level hardware optimization, which is tailored to configurable embedded processor architecture. The optimized instructions for video processing can be used in other video compression standards such as MPEG 1, 2, and 4. A significant performance improvement is achieved with high flexibility. Experimental results show that we could achieve 300% performance for the H.264 baseline profile level 2 decoder.

• ETRI Journal
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• 제24권6호
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• pp.435-442
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• 2002

Antenna Passive Intermodulation (PIM) level measurement results are rarely credited to be due to external signal receiving characteristics of the antennas or serious effects from external PIM sources, such as the anechoic chamber absorber and antenna tower. This paper presents an antenna PIM model for a reflected PIM measurement method. Based on the findings of null point generation and the behavior of the third order PIM values obtained by theoretical predictions and experimental results, we concluded that the results of the antenna PIM level test were influenced by the external PIM sources generated by the anechoic chamber absorber and the path differences of PIM signals coming into the antenna.

• 한국조리학회지
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• 제24권3호
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• pp.47-59
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• 2018

Vocational education has been constantly blamed for training skills that are not suitable for the field. This study was sought for finding out the necessary skills for the hotel entry-level cooks by conducting in-depth interviews, questionnaires, and case studies in terms of NCS's basic competencies and competencies required at work environment. The results of this study are as follows: First, in the field, job performance ability is more important than skills and knowledge. Second, among the NCS's basic competencies, communication skills, interpersonal skills, self-development skills, information skills, and professional ethics are prioritized competencies for hotel-entry level cooks. Third, in terms of competency factors at work, it is necessary to learn the adaptability of the field. Fourth, in case of overseas culinary institutes, the core of their culinary education was the system to learn how to operate the site rather than the education about cooking skills or knowledge. Fifth, in holistic approach, the result showed that four elements which are skills, knowledge, field practice, and simulation training are required for Culinary Arts curriculum.

• 한국학교수학회논문집
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• 제18권3호
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• pp.335-352
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• 2015

본 논문에서는 P대학에서 시행하는 수학진단평가에 응시한 공과대학 학생 중에서, 대학수학능력시험 수학 B형의 성적이 4~7등급으로 기초수학 교과목을 수강하는 145명을 연구대상으로 선정하였다. 연구대상 학생들의 대학입학능력시험 수학영역 등급, 수학진단평가 성적, 대입전형 유형, 학생실태 설문조사 결과 및 기초수학 교과목 중간고사 성적 등을 비교 분석하여 이들 사이의 상관관계를 알아보고, 교양수학 교과목 수강학생들의 기초학력 향상을 위한 학습지도 방안에 대해 연구하였다.

• 한국생활과학회지
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• 제15권2호
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• pp.293-301
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• 2006

The purpose of this study is to develop a textile knowledge checklist and to analyze university students' textile recognition. After analyzing reliability, difficulty, and discrimination of questions, we developed a standardized tool to measure textile knowledge. The tool has 72 checklist questions, which can be divided into 4 parts: basic property, comfort, management, and finishing. The level of university students' textile knowledge was 68.91 %. The level of basic property was 75.56%, comfort 70.83%, management 64.5% and finishing 64.74%. The recognition of management and finishing was lower than that of basic property and comfort. There existed a significant difference in the textile knowledge by their gender, major, and school year. To elaborate, females, clothing and textile major students, and juniors and seniors showed higher level of textile knowledge. It seemed that comfort was more professional item than management in textile knowledge.

• Plant Resources
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• 제6권3호
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• pp.170-174
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• 2003

The important component for medical effect in ginseng is ginsenoside. Korea Ginseng & Tobacco Research Institute contains approximately 200 lines produced by inbred selection. It is assumed that ginseng lines containing high level of ginsenoside should be included in those lines. Besides, new breeding methods such as cell line selection in vitro and hairy root were recently developed. Therefore, this study was carried out to detect genes related to ginsenoside, and to use it for selection marker to select and distribute lines containing high level of ginsenoside. DNA was extracted from both ginseng roots and hairy roots, and the difference between the line containing high ginsenoside(KG101) and normal ginsenoside(KG103) were analysed. As a result, 28 out of 36 primers showed bands, and many primers showed band difference between ginseng lines. It is considered that the bands should be analysed using DNA sequence comparison to check if those are related to ginsenoside. In case of hairy roots of ginseng, almost no differences were found between two lines.

• 대한화학회지
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• 제57권1호
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• pp.127-137
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• 2013

우리나라 중학교 3학년 학생들을 대상으로 실시한 2009, 2010년 국가수준 학업성취도 평가 결과를 이용하여 학생들의 성취수준별 특징을 조사하였다. 성취수준별 대표 문항 분석을 통하여 다음과 같은 내용을 알았다. 우수학력 학생들은 현상의 변화를 물질의 특징과 모형을 함께 이용하여 설명할 수 있고, 보통학력 학생들은 단순한 상황에 한정하여 모형을 활용하여 현상을 설명할 수 있으며, 기초학력 학생들은 모형의 의미를 이해하지 못하여 물질 현상을 모형을 이용하여 설명하지 못했다.