치아 순면 형태가 측색 기기를 이용한 치아 색상 측정 결과에 미치는 영향

최용진,박수정,조현구,황윤찬,오원만,박병주,황인남 대한치과보존학회 2007 Restorative Dentistry & Endodontics Vol.32 No.5

삼부이론을 적용한 창의적 사고 배양 수업안의 개발 : 지구과학 분야를 중심으로 Especially for High School Earth Science Education

최임조,임영구,강용희,유계화 慶北大學校 科學敎育硏究所 2003 科學敎育硏究誌 Vol.27 No.-

The enrichment triad model(Renzulli, 1977) which was originally developed for teaching and learning of gifted and talented children consists of three types of enrichment activities. Type Ⅰ enrichment activities build knowledge for later use in 'gifted behaviors', and type Ⅱ enrichment activities focus on the 'how-to skills,' attitudes and values the student must develop to become and effective investigator, problem solver and producer. Type Ⅲ enrichment activities, the pursuit of real problems and realization of gifted behavior, are the fundamental goal for this model. In this study we developed enrichment activities for high school earth science class. We could summarize enrichment activities as follows: In studying the fossil section, after reporting their research activities on fossil data, students can understand the fossil theory through questioning and answering their homeworks. They can enhance their interest and curiosity by watching the movie 'Jurassic Part'(type Ⅰ enrichment activities). After making replica of fossil samples(type Ⅱ), they can write their research reports or articles concerning fossils(type Ⅲ). Students can extend their knowledge about fossils through these types of enrichment activities. In studying weather map section, after collecting newspaper clippings or searching internet, students present their knowledge about weather and weather maps(type Ⅰ enrichment activities). Learning how to make weather maps and investigating how to analyze them, student can extend their knowledge(type Ⅱ). Through these activities, students can apply their knowledge to everyday life experience(type Ⅲ). The third program is 'igneous rock' section. Students investigate the fossil formation in Korea(type Ⅰ enrichment activities). They can understand the principle of volcanic activities through experiment of volcano eruption model type Ⅱ. Through drawing pictures, writing assignment of experiment activities and playing the role play of igneous rocks, teachers can help students to acquire cause or interest to study the igneous rocks(type Ⅲ). In conclusion, within a classroom instruction teachers would be utilizing all three types of activities, moving from one to the other as class, and individual needs, demand. By selecting what students want to do and making them to produce results of their activities, we are expecting that teachers can cultivate creative thinking and enhance problem solving ability of students.

단일 처리기간에 의한 들깨의 생육 및 개화조절

최영환,최영훈,강점순,손병구,김용철,최인수,주우홍 밀양대학교 농업기술개발연구소 2000 農業技術開發硏究所報 Vol.4 No.1

It's not uncommon for the amount of leaves to be reduced significantly due to the early differentiation of flower-bud by short-day condition when growing perilla for harvesting the leaves in the greenhouse during the winter. This study analyzed the effect of day-length on the growth and regulation of flowering, which are closely related with differentiation of flower and amount of leaves. Development of new leaf was inhibited by short-day treatment for more than 5 days. As the period of short-day was longer, the effect on the development of new leaf inhibition was more evident. Number of leaves was reduced in both 40 days and 110 days short-day treatments as period of short-day length was longer. Short-day treatment for less than 3 days did not induce flowering, but short-day treatment for more than 5 days induced flowering. As the period of short-day treatment was shorter, percentage of flowering was lower and days to flowering was longer. That is, when treated for 20 days, flowering began in 20 days. Seed weight was reduced as the length of short-day treatment was longer.

암처리 엽수와 기간이 들깨의 생육 및 개화에 미치는 영향

최영훈,최영환,이영근,김용균,손병구,강점순,김근기 밀양대학교 농업기술개발연구소 2000 農業技術開發硏究所報 Vol.4 No.1

The lower leaves shading in upper leaves is unknown to be reduced significantly due to the early differentiation of flower-bud by dark treatment of leaves when growing perilla for harvesting the leaves in the greenhouse during the winter. This study analyzed the effect of dark treatment of leaves on the growth and regulation of flowering, which are closely related with differentiation of flower and amount of leaves. One leaf and 3 leaves per plant were dark treated for 0, 5, 10 days. Plant hight was reduced in 3 leaves treatment, but there was no difference in 1 leaf treatment. Stem diameter was reduced in both 1 leaf and 3 leaves treatments, which was more significant in 3 leaves treatment. Leaf area was reduced when 1 leaf was treated for 10 days, but there was no difference when 1 leaf was treated for 5 days. When 3 leaves were treated, leaf area was no difference between treatments. However, leaf area which 3 leaves were treated was reduced more significantly than that 1 leaf was treated. Seed weight was remarkably decreased when 1 leaf was treated for 10 days, and it was decreased when 3 leaves were treated for more than 5 days.

NDRG2 is one of novel intrinsic factors for regulation of lL-10 production in human myeloid cell

최승철,김광동,김종태,오상석,윤선영,송은영,이희구,조영경,최인표,임종석,김재화 Sookmyung Women's University Research Institute of 2010 여성과 건강 Vol.6 No.1

미립자 응집반응을 이용한 C-reactive Protein의 면역측정법에 관한 연구

최용경,정태화,최명자,김재화,최인성,김용호,송은영,이희구 THE KOREAN SOCIETY FOR BIOMEDICAL LABORATORY SCIEN 1996 Journal of biomedical laboratory sciences Vol.2 No.1

환자의 복수와 늑막액으로부터 p-diazonium phenylphosphorylcholine(DPPC) coupled Separose-4B affinity chromatography와 hydroxylapatite chromatography를 실시하여 C-reactive protein (CRP)를 분리, 정제하였다. 정제된 CRP를 토끼에게 면역화하여 항혈청을 얻고 affinity chromatography를 하여 면역항체(IgG)를 분리하였다. 분리된 면역항체를 미립자에 감작시킨 후 미립자 응집반응에 의하여 3분내에 CRP를 측정할 수 있는 간이 면역측정법을 개발하였다. 본 연구에서 개발된 CRP측정법의 검출범위는 0.5∼20㎎/㎗이며, 임상 시험 결과 0.7∼2.9㎎/㎗에서는 강한 응집반응을, 5.0∼13.2㎎/㎗에서는 약한 응집반응을 보였고 28㎎/㎗이상에서는 항원 과잉으로 인한(zone of Ag excess phenomenon) 위음성을 나타냈다. 74명의 환자 혈청을 대상으로 CRP의 농도를 조사한 결과 평균치는 3.8㎎/㎗이었으며 대부분의 환자에서는 10㎎/㎗ 이하의 농도로 존재하였다. 그러므로 1차판정시 음성을 나타낸 시료라도 혈청을 5∼10배정도 희석하여 재분석한다면 오차없이 CRP를 검출할 수 있었다. 환자 혈청을 검체로 하여 본 연구에서 개발한 면역측정법과 현재 수입 시판중인 프랑스의 B사 제품과 일본의 I사 제품을 비교한 결과 좋은 상관관계를 보였다. 이와 같은 평가 분석을 통하여 볼 때 본 연구에서 개발한 간이 면역측정법은 사용이 비교적 간편하며 신빙성이 있어 CRP를 스크리닝 하는데 효과적임을 알 수 있었다. The C-reactive protein(CRP) from ascitic and pleural fluid was purified using calcium dependent affinity chromatography of CNBr activated Sepharose-4B covalently coupled to p-diazonium phenylphosphorylcholine(DPPC) and hydroxylapitite chromatography. Polyclonal antibody was prepared from rabbit by immunizing the purified CRP. Specific immunoglobulin G was isolated using affinity chromatography and coupled to microparticles. A sensitive microparticle-based immunoassay was developed to measure CRP within 3 mins. The detection range was between 0.5㎎/㎗ and 20㎎/㎗ in serum, showing strong response in the range of 0.7∼2.9㎎/㎗, week response in 5.0∼13.2㎎/㎗ and zone phenomenon over 28㎎/㎗. The average value of CRP in 74 samples was 3.8㎎/㎗ and most of the values were lower than 10㎎/㎗. The CRP values of serum samples were determined by our microparticle-based immunoassay, and were compared with those obtained using the other commercial products(B Co., France and I Co., Japan). Good correlations were shown between the values obtained by our developed microparticle-based immunoassay system and those by other commercial products. All performance characteristics evaluated make our developed microparticles-based immunoassay suitable for a simple, rapid, and reliable screening of CRP in serum.

개불과 넙치의 혼합 사육시 성장과 사육환경의 변화

김용구,박일웅,안윤근,배애란,최상덕 國立麗水大學校 環境問題硏究所 2004 環境硏究論文集 Vol.6 No.-

This present study was conducted to determine the effects of sea water quality and sediment quality on growth and body composition in poly culture system, Paralichthys olivaceus and Urechis unicinctus. The seawater temperature of the experimental groups was ranges of 17.1~23.8℃, the lowest in 0 day and the highest in 70 day. The concentration of COD was 1.2~1.6㎎/ℓ, DIN 6.19~28.89㎎/ℓ in the D group. Mean IL concentration was 5.42~5.07% and it was maximum in 0 day and relatively minimum 70day. The concentration of AVS was 0.36~0.22㎎/g-dry, COD 4.36~4.08㎎/g-dry in the D group. Growth and feed intake of fish were affected by diets and feeding frequencies(P<0.05). There were differences at all experimental groups especially C group and control group but A, B group and C, D group were not difference. The lowest increased body weight was observed 4.7g in the D experimental group and the highest experimental group was observed 8.6g in the C group.

PECVD법으로 증착된 전자소자용 thiophene 박막의 전기화학적 신뢰성에 관한 연구

김정구,박진택,최윤석,부진효,유용재 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.6

The corrosion failure of electronic devices has been a major reliability concern lately. This failure is an ongoing concern because of miniaturization of integrated circuits(IC) and the increased use of polymers in electronic packaging. In this paper plasma-polymerized thiophene films were considered as a possible candidate for an interlayer dielectric for multilever metallization of ultra large scale integrated (ULSI) semiconductor devices. The protective ability of above films as a function RF power in an 3.5 wt.% NaCl solution was examined by electrochemical methods and contact angle measurement. The protective efficiency of the film increased with increasing RF power, which induced the higher degree of cross-linking and hydrophobicity of the films.

NDRG2 is one of novel intrinsic factors for regulation of lL-10 production in human myeloid cell

최승철,김광동,김종태,오상석,윤선영,송은영,이희구,조영경,최인표,임종석,김재화 Sookmyung Women's University Research Institute of 2010 여성과 건강 Vol.6 No.1

턴디슈용 SiC 코팅材의 특성에 관한 硏究

김행식,최태현,이용구,전병세 경남대학교 신소재연구소 1995 論文集 Vol.5 No.-

턴디쉬 내장용으로 사용할 내화재료의 여러 가지 특성들을 시험하였다. 납석 70%, 점토 10% 그리고 탄화규소 20%을 혼합하여 18 가지의 조성을 가지는 시험편을 제조하였다. 탄화규소는 각각 순도 85%와 65%인 유럽산, 일본산, 중국산을 택하여 최종 제품에 미치는 영향을 알아보았다. 여러 가지 시험의 결과 10% 탄화규소를 포함한 시험편의 경우 점토질 내화벽돌 보다 수명이 2배 정도 향상되었으며 차지당 용손 두께도 1.5∼1.7㎜/ch였다. Various properties of refractory materials for the tundish lining were examined. The refractory samples with 18 different composition were prepared by mixing powders of 70 wt.% pyrophyllite. 10 wt.% clay and 20 wt.% Sic. SiC was selected from three sources, European. Japanese and Chinese-made, having 85% and 65% purities, to examine their effects on the final properties. As a results of several testings. the sample with 10% SiC(European1 was best suitable for tundish lining as a refractory coating materials. The wear depth was 1.2-1.5 mm per charge at the wall and 1.7 mm per charge a t the slag line, having shown that this service life was about 2 times longer than the ordinary lining made of clay firebricks(SiO₂-Al₂O₃).