경연 대회를 통한 초ㆍ중고생의 창의력 신장 효과에 관한 연구

이희복,육근철,류해일,김현섭,김희수,박달원,유병환,김선효,김여상,서광수,변두원,서명석,배성효,박종석,심규철,이성희 공주대학교 과학교육연구소 2001 과학교육연구 Vol.32 No.1

미래 사회를 대비하기 위한 개인의 개성을 존중과 창의적인 능력을 지닌 인간을 양성을 목적으로 충청남도 지역의 초 ㆍ 중고등학생들을 대상으로 한 창의력 경연대회가 공주대학교 과학교육연구소에서 개최되었다. 충청남도 초 ㆍ중 ㆍ 고등학생들을 대상으로 실시한 창의력 경연대회는 창조적 아이디어를 내어 스스로 문제를 해결해 나갈 수 있는 교육 프로그램을 제공하는 좋은 기회였음이 확인되었으나, 일부의 팀에서만 참신하고 재미있는 아이디어들이 제안되었다. 여학생의 참가자 수가 상당히 증가하였으며, 대체적으로 입상권의 학생들의 상당 부분이 여학생이라는 것이 특이할만하다. 학년이 올라감에 따라서 창의적인 아이디어를 내는 양이나 질에 있어서 뒤떨어지는 것으로 분석되었으며, 토론 학습의 적응력이 미흡하고 발표력 및 청취력에 있어서도 떨어지는 것으로 나타났다. 따라서 중 ㆍ고등학교의 학교교육에서도 학생들에게 프로젝트형 탐구학습 프로그램의 적용은 물론 토론식 수습을 통한 학생들의 사고의 전환의 기회를 제공해야 할 것으로 사료된다. The creativity competition was held to foster the creativity of elementary and secondary school students in the Institute of Science Education, Kongju national University. It was found that the creativity competition effected on the improvement of inventing creative ideas and problem solving activities. But, only some competitors participated in semifinal and final contests, presented original and interesting ideas. More female students participated in competition than last year. More female participants were awarded a prize than males. Totally, participants were defective in discussion and communication, and presentation and listening ideas. Increasing grades correlated inversely with creativity and originality. There is need of inquiry project teaming programs and presenting opportunities of conversion of thinking by discussing instructions in school

논토양중 카드뮴 유효도와 수도의 흡수이행에 미치는 석회 및 Humic acid 사용효과

김민경,김원일,정구복,박광래,윤순강,엄기철 한국환경농학회 2004 한국환경농학회지 Vol.23 No.1

토양중 중금속이 식물에 흡수 및 이행되는 것을 경감시켜 여기에서 생산된 농산물의 안전성 향상을 위한 기초자료를 확보하고 논토양의 카드뮴 유효도와 흡수이행에 미치는 석회와 humic acid 처리 효과를 구명하기 위하여 실내경험과 포트실험을 수행하였다. 실내실험에서 공시토양에 2.5와 5.0 ton/ha의 석회와 1%와 2% humic acid를 처리한 후 토양중 가용성 카드뮴 함량 변화를 조사한 결과, 두 처리 모두 14일까지는 담수상태에서 처리효과로 인하여 가용성 카드뮴 함량이 감소하다가 그 이후에는 토양의 완충능에 의해 다시 증가하는 경향이었다. 이때, 토양의 가용성 카드뮴 함량은 토양 pH 및 양이온치환용량과 부의 상관이 있었다. 2.5 ton/ha의 석회와 1% 의 humic acid를 처리한 후 담수시켜 안정화된 다음 벼를 재배하여 조사한 결과, 석회와 humic acid 처리에 비해 분얼기와 수확기의 치화태 및 수용태 카드뮴 함량이 낮아졌으나, 분얼기에 비해 수확기에 토양중 이동이 어려운 산화물 및 탄산염태와 황화물 및 잔류태의 함량이 증가하였다. 식물에 흡수가 용이한 형태로 알려진 치환태와 수용태는 모두 토양 pH와 고도의 부의 상관이 있었다. 수확기의 줄기, 잎 및 현미 건물중은 석회 및 humic acide 처리구에서 대조구에 비해 모두 높았고, 특히 석회 처리구의 건물중이 현저하게 높았다. 석회 처리구에서 줄기와 잎의 카드뮴 함량은 각각 1.01과 0.37㎎/㎏으로 대조구와 비슷하였으나, 뿌리나 현미의 카드뮴 ?량은 각각 2.11과 0.09㎎/㎏으로 대조구에 비해 낮았다. 지상부와 뿌리의 카드뮴 함량은 humic acid 처리에 의해 현저히 낮아졌으며, 특히 현미로의 카드뮴 이행도 월등히 낮게 나타난다. This study was conducted to know the effect of lime and humic acid on cadmium availability and its uptake by plant grown in contaminated paddy soils with heavy metal. The treatment levels of lime were 2.5 and 5.0 ton/ha and that of humic acid were 1 and 2%. The contents of 0.1 N HCl extractable Cd were reduced with lime and humic acid and were negatively correlated with CEC as well as soil pH. The sequential extraction procedure was used to fractionate the heavy metals in soil into the designated from exchangeable (0.5 M KNO₃), water soluble (H₂O), organically bound (0.5 M NaOH), carbonate (0.05 M Na₂-EDTA) and sulfide/residual (4 M HNO₃). In soil amended with 2.5 ton/ha lime and 1% humic acid, chemical forms of Cd at tillering stage were predominant exchangeable+water soluble extractable Cd, whereas that at harvesting stage were predominant carbonate+sulfide/residual extractable Cd. The exchangeable forms of Cd in soil with lime and humic acid were negatively correlated with soil pH during the harvesting period. Total absorbed Cd of paddy rice tended to occur in the order of root > stem > leaf > brown rice. Cd con- tents of brown rice with lime and humic acid treatment were 0.09 and 0.08 mg/kg, respectively. That were lower than control, 0.20 ㎎/㎏. It could be that treatment of lime and humic acid in polluted soil by heavy metals would reduce the uptake of heavy metals by plants and be a temporary method of reclamation at the highly heavy metal contaminated soils.

불소계 투광성 고분자 중간체(FCAF)의 합성

김광한,소원욱,박인준,문상진,이수복 한국공업화학회 2003 응용화학 Vol.7 No.2

고부가치의 불소계 투광성 고분자는 반사방지 필름, 반도체 보호필름, POF(plastic optical fiber) 및 섬유 가공제 등 광관련 소재산업에 폭넓게 사용되고 있어 최근 이에 대한 연구가 활발하게 이루어지고 있다. 본 연구에서는 발연황산(SO₃/H₂SO₄)을 이용한 DCIPFB(1,2-dichloro perfluoro butyl iodide)의 산화반응에 의해 대표적인 불소계 투광성 고분자인 Cytop 중간체의 하나인 FCAF(fluorinated chloro acyl fluoride) 합성시 반응온도 등의 대표적인 실험변수에 따른 FCAF의 합성특성을 고찰하였다. 그 결과 반응온도 및 반응시간의 증가와 더불어 DCIPFB의 전환율은 증가하였으나 FCAF의 선택율은 감소하였다. 이 때 생성물의 정성 및 정량분석을 위하여 GC/MS 및 GC를 사용하였다.

Sports의 動因 및 動機誘發에 관한 分析

金泰亨,丁光福 진주여자전문대학 1987 論文集 Vol.9 No.-

In a complicated and various life, (playing) sports is inevitable aspect of social life. Therefore, in order to show the method of (playing) sports, after studying about the literature on sports, I analysised and interpreted. So I arrived at following conclusions. 1. Endow an apt task. 2. Awaken the ain or direction of playing sports. 3. Inform the results for playing sports. 4. Operate effectively how to endow success and failure. 5 Cause a soundness competition. 6. Use reward and punishment properly. 7. Connect with interest and request. 8. Try to start from meaningful direct experience. 9. Make an opportunity of game as result of playing sports.

Aspergillus candidus F1484 균주가 생산하는 항진균 화합물의 분리 및 특성

김성옥,이소영,김성규,손광희,김영국,문석식,복성해 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.5

Candida albicans의 효모형태에 대해 활성을 나타내는 항진균 물질의 탐색 중에 Aspergillus candidus F1484 균주의 발효액으로부터 항진균 화합물 F1484를 단리하고 ethyl acetate 추출, silica gel column chromatography, ODS column chromatography 및 preparative HPLC를 행하여 분리정제하였다. F1484 화합물은 EI-MS, ^13C-, ^1H-NMR, DEPT, HMQC 및 HMBC에 의한 구조분석을 행한 결과 이 화합물은 항진균 물질인 chloroflavonin과 동일한 구조를 나타내었으며 효모형태의 Candida albicans에 대한 항진균 활성뿐만 아니라 여러 종류의 인체 종양 세포주에 대해서도 세포독성을 나타내었다. In the course of screening for the antifungal compounds against Candida albicans, an antifungal compound (F1480) was isolated from the culture broth of Aspergillus candidus F1484. Isolation and purification of compound F1484 were performed using ethyl acetate extraction, silica gel column chromatography, ODS column chromatography, and preparative HPLC. The structure of compound F1484 was determined by the spectroscopic analyses of EI-MS, ^13C-, ^1H-NMR, DEPT, HMQC, and HMBC. This compound appeared to have a structure of antifungal agent, chloroflavonin. In addition to antifungal activities against the yeast phase of Candida species, compound F1484 showed cytotoxic effect against various human tumor cell lines.

고등학생 스트레스의 횡문화적 연구 : 연변의 한족, 조선족 및 서울의 한국인 비교

김대호,고복자,방금녀,김광일,박용천 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.2

In this transcultural comparison, we examined areas of stress, coping strategies and psychosomatic symptoms resulting form such strategies in Chinese, Korean-Chinese and Korean high school students. A total of 1,042 second-year high school students participated in this study : 213 Chinese from Yanbien, China ; 368 Korean-Chinese from Yanbien, China ; and 466 Koreans from Seoul, Korea. We administered the Stress Questionnaire Form for High school Students(Won & Lee 1995), the Ways of Coping-Revised(Lazarus & Folkman 1984) and the Physical Symptom Scale of Stress(Allen & Hyde 1980) to investigate areas of stress, coping stategies and psychosomatic symptoms, respectively. The findings were understood and interpreted from focus group discussions. Although there were no differences in total stress scores among the three groups, there were significant differences in areas of stress. Chinese students manifested the highest stress scores in peer relation, family problem, heterosexual problem, the future-employment, and religious problem. Koreans scored the highest in academic performance, school life, extracurricular activity, psychological-personality problem, value system, and the future-employment. The Korean-Chinese students scored the highest in extracurricular activity, family-economic problem. In terms of collectivism versus individualism, Chinese students' stress was related more toward the collective situation, whereas the Korean students faced increased stress regarding the individual situation. In coping strategies, the Chinese were characterized by active coping, Koreans by passive coping and Korean-Chinese by a mixture of the two. Koreans had the highest scores in psychosomatic symptoms, suggesting unfavorable coping strategies. The Korean-Chinese students seemed to lie intermediate between Koreans and Chinese in all three study areas, implying their chltural pluralism.

조형예술작품의 해석모형 연구 : 파노프스키와 플로슈를 중심으로

김복영,최광진 홍익대학교 산업디자인연구소 2000 미술디자인 논문집 Vol.- No.5

This essay has a purpose to study on the methodology of interpretation in visual arts. The full-scale study on interpretation method started from Panofsky's Iconology in the late 20th century. Panofsky divided one work into 3 classes - such as' Natural Subject Matter', 'Conventional Subject Matter', and' Intrinsic Meaning or Content'. Each stage of interpretation in connection with 3 classes are 'Pre-Iconographical Description', 'Iconographical Analysis' and 'Iconographical Interpretation'. The methodological value of Panofsky seems to me that he synthesize cultural, several history of culture, society, psychiatry within his interpretative approach. However, his method has the limit with the application of visual arts. For an instance, the natural and conventional icons were disappeared modern arts and meaning of icons not clear in concept. Therefore, the study aims at the surveying of receivability the methods of semiology within Panofsky's Iconological methods. Especially, the study researches the possibilities in the methods of 'Plastic Semiology' of J. M. Floch, who developed the method of Greimasian semiology into the method of visual arts interpretation. He divided works into 'Expression Plane' and 'Contents Plane', and constructed 'Sign-symbolic System' through dual division with there own distinctive difference. The paper intend show, theoretically, strict methodology to examine the mutual relationship between the visible and the ideological in visual arts, an important role in the interpretation of modern arts has to be.

광궤환 알고리즘을 적용한 새로운 구조의 대용량 광 셀 압축기 및 역압축기 구현

김광복,안상호,엄진섭,박기오 강원대학교 정보통신연구소 1999 정보통신논문지 Vol.3 No.-

In this paper, we proposed a new type of the Optical Cell Compressor and Decompressor, which are essential functional modules in TDM and TDM/WDM Hybrid Optical ATM Switch structure. The proposed structure drastically lessens hardwares for realization, using applied optical feedback algorithm in the compressing and decompressing. Also, it is possible to compress and decompress the large capacity optical pulse stream under the situation of multi-stage connection. We specified the systematic application through 4-bit compressing experiment with the single module for the proposed optical cell compressor.

자궁경부암에서 H-ras의 재배열과 v-mos의 증폭

김재형,함덕상,고복현,김대광 동국대학교 경주대학 1993 東國論集 Vol.12 No.-

Uterine cervical cancer is the most common cancer of woman in Korea. To understand which oncogenes are involved in squamous cell carcinomas of the uterine cervix, author examined nine human tissues of squamous cell carcinomas of the uterine cervix using Southern blotting techniques for five known oncogenes (H-ras, v-mos, erbB2, c-myc, K-ras). One of the nine tumors demonstrated a rearrangement of the H-ras oncogene. And amplification of v-mos was found in three tumors. The other oncogenes(erbB2, c-myc and K-ras) were the same pattern with the control. It is presumed that rearrangement of H-ras and amplifications of v-mos may be concerned to oncogenesis of squamous cell carcinomas of uterine cervix.

AWG의 파장교차특성과 광스위치를 이용한 WDM 시스템의 다채널 주파수 안정화

김광복,엄진섭,이정렬 강원대학교 정보통신연구소 1998 정보통신논문지 Vol.2 No.-

In this paper, we propose a novel multichannel frequency stabilization control scheme of semiconductor lasers, that uses the optical switches, wavelength crossover properties of an AWG, micro-processor and logarithmic amplifiers. The advantages of this scheme are that do not depend on the change of input power level and accommodate more channels simultaneously. Furthermore it can allow narrower channel spacing than the proposed scheme already.