• 한국지구과학회지
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• 제22권4호
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• pp.268-277
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• 2001

이 연구는 계절 변화에 대한 초등학생의 선개념과 수업에서 나타나는 개념 변화 양상을 조사하는 것이다. 연구 대상은 인천광역시의 초등학교 5학년생 78명을 대상으로 하였다. 계절 변화에 대한 학생들의 선개념을 알아보기 위하여 그림과 글로 응답하도록 구성된 지필 검사지를 사용하였으며, 동일한 검사 문항을 이용하여 각각 수업 중의 중간 검사, 수업 후의 사후 검사, 그리고 1주일 후 지연 검사를 통하여 학생들의 개념 변화 양상을 조사하였다. 응답 결과의 분석은 3명의 본 연구자들간에 의견의 일치를 보아 분석하였다. 조사 결과, 사전 검사에서 대안 개념을 가지고 있는 일부 학생들의 경우 수업 후 또 다른 대안 개념을 형성하며, 이들이 가지고 있는 계절 변화 개념은 안정되어 있지 않은 상태로 나타났다. 또한 계절별 지구와 태양 사이의 공간 분포의 변화에서는 거리와 가열 효과가, 그리도 계절별 별자리의 변화에서는 지구의 자전 개념이 계절 변화에 대한 학생들의 올바른 개념 형성에 장애가 되는 요인으로 나타났다.

• 대한전자공학회논문지SD
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• 제41권3호
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• pp.39-44
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• 2004

광섬유 브래그 격자 센서는 광섬유의 코어의 굴절률 변조에 의해서 제작되며, 이 센서는 외부의 스트레인에 따라 브래그 파장이 변화하게 된다. 본 논문에서는 광섬유 브래그 격자 센서를 파장 영역에서 신호처리 할 수 있는 방법에 대하여 연구하였다. SLD와 F-P 필터로 구성된 sweep 반도체 광원과 F P 필터내의 PZT의 히스테리시스 특성을 보상하기 위한 에탈론 필터와 장기 계측을 위해 절대 파장 기준으로 온도 안정된 광섬유 브래그 격자를 사용하였다. 콘크리트 흄관에서 FBG 센서의 스트레인 응답 특성을 전기저항 센서와 비교하였다. 그리고 광섬유 격자 센서를 이용하여 장거리 변위의 측정 가능성을 확인하였다.

• 한국환경교육학회지:환경교육
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• 제19권1호
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• pp.30-42
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• 2006

The Ministry of Environment supports environmental education mainly in two ways ; one is by supporting schools engaged in environment conservation model school and the other is by extending grants for experiential environmental education programs. This research aims to evaluate the current status of grant for experiential environmental education programs while proposing possible improvement for constructive and continuing development of the support measures. Grant for experiential environmental education programs is divided into two areas of grant for schools and grant for community-based civil organizations. The diagnosis and evaluation were conducted in terms of 7 areas, such as time, facilities, programs, manpower (professional expertise), operation, administrative and financial support mechanism and others. Research process involved the review of previous studies in 2001 and 2003, comparison of the grant program with other grants in and out of Korea for environment education, and the following areas considered when identifying improvement options: i) Overall review of objectives and operations, ii) expansion supports programs oriented problem solving as well as those focused ecological sensitivity, iii) change from expendable, one-time program to productive, continuous program, iv) link to social changes and issues, v) principles for operation and evaluation, vi) criteria and methods for program selection and evaluation, and vii) improving operation system. Based on review and the overall evaluation on the experiential environmental education program grant, the recommendation for improving operation system were provided, which included stages of passive improvement, active improvement and building infrastructure for environment education, and building capacity of the members related in the initiatives.

• 한국환경교육학회지:환경교육
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• 제20권1호
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• pp.19-27
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• 2007

This study was intended to answer the question, 'What kinds of effects will be aroused by experiential learning for environment based on living area?'. Experiential learning for environment was operated to 17 elementary school students in 4th grade in Kyeong-san city. The results were drawn analyzing the mind map for the changes of environmental consciousness before and after learning, and they are as below. First, it had an effect to change the meaning association of the relationship between 'river and me'. Meaning association was 'river-a thing' before experiential learning, but it was developed as 'river-a thing-me' after learning. This means that students expanded understanding of the world that they were belonging and self-spatialization was promoted. The expansion of meaning association would be a start point and a method to promote their segmentation for each student. Second, students could self-directly modify misconception and preconception after experiential learning. It showed that students could find meanings in the world that they were belonging by experiential learning for environment, and misconception obtained by concept learning without actual situation could be revised through the truth recognition in meanings, and student could see what things displayed. Therefore preconception would be corrected. Of course, everything would not be completed by just one time of experiential learning, and consistent experience learning should be operated. Third, experiential learning promoted the change of sensitivity. Students had shallow sensitivity, which appeared in the relation with things, since having learned only inside of class without a direct observation. However their sensitivity could be increased by experiencing specific things. Fourth, there was the change of classification recognition. Students found properties of things with a direct observation. It raised their ability to classify things, and to understand an individual thing in 'a class'.

• 한국산학기술학회논문지
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• 제16권5호
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• pp.3361-3369
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• 2015

본 연구의 목적은 효모균주와 발효조건 등을 달리하여 머루를 첨가하여 복분자 와인의 품질을 향상시키는데 있다. 효모별 복분자 와인 술덧 품질에 미치는 영향 연구에서는 Y1(Lalvin 71B)효모가 젖산, 퓨젤유 성분을 발효후에 타 효모에 비해 유의적으로 높게 생성하였으며, 술덧의 산도를 낮추고 복분자 와인의 아로마를 강화하는데 효과가 있는 것으로 분석되었다. 또한 발효온도가 복분자 와인 술덧에 미치는 영향 연구에서는 고온발효($25^{\circ}C$)에서 Y1 효모를 이용하여 발효한 술덧에서 낮은 온도($15^{\circ}C$)에서 발효한 술덧에서보다 아로마 성분(에틸 아세테이트 및 고급알코올)이 유의적으로 높게 생성되었다. 본 연구를 통해 머루를 첨가한 복분자 와인제조시 Y1 효모를 이용하고 고온에서 발효하는 것이 복분자 와인의 맛과 아로마를 강화하는데 효과가 있는 것으로 나타났다.

• 한국환경교육학회지:환경교육
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• 제25권1호
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• pp.1-14
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• 2012

The purpose of this study is to investigate research trends about elementary environmental education through the analysis of theses published from January, 1991 to June, 2011 in the scientific journals. For the analysis of theses, we set standards of analysis including the number of theses, research topics, research methods, the designs of study and the objects of study. The number of theses used for the analysis was 186 volumes by limiting as Journal of KOSEE (The Korean Society for Environmental Education), Journal of KASE (The Korean Association for Science Education) and Journal of KESES (The Korean Society of Elementary Science Education). The results of study are as follows. First, in the analysis of theses according to the published year, we discovered that the volumes of theses related elementary environmental education were more than 50% of theses published in the Journal of KOSEE since mid-2000s. Second, the theses about environmental education curriculum were most common topic in the research topics, and the next things were status and actual condition, environmental perspective, and theory and policy. Third, as the most common things in research methods and the designs of study, 38.6% of theses have focused on the 'development and application' as research methods and 50.5% of theses have used 'quantitative research' as the designs of study. Fourth, the most common study in the theses was to target elementary school students, then it was literatures, then teachers, and environmental facility. On the basis of the results of this research, we suggest that various studies and environmental education programs can develop student's right environmental perspective and teacher's recognition about environmental education must be presented.

• 한국환경교육학회지:환경교육
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• 제20권2호
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• pp.108-122
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• 2007

Recently, a new revised national curriculum('2007 Revised') of the 'Environment' subject for middle and high schools was announced, which is namely the 7th revised national curriculum. In the new national curriculum, the name of the 'environment' subject for middle schools has been unchanged, but the name of the subject for high schools has been changed from the 'Ecosystem & Environment' to 'Environment'. And some of the contents have been revised to incorporate the changed status of environmental education areas since the last announcement of the 'Environment' curriculum, which was in the late of 1997. Especially, in this new curriculum, the concept of the 'Education for Sustainable Development (ESD)' was implemented. The purpose of this research is to investigate the process of developing the new 'Environment' curriculum for middle and high schools and to examine the resulted, new revised curriculum. In order to do these, this research examined the main directions of the revision, compared the new announced curriculum with the current and the proposed one, which was researched by the authors in this article. And this research discussed the process and the announced results of the revised national curriculum of the 'Environment' subject.

• 한국응용곤충학회지
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• 제60권4호
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• pp.357-361
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• 2021

침입우려 고위험 해충 9종(Aceria diospyri, Bactrocera dorsalis, Bactrocera minax, Bactrocera tsuneonis, Cydia pomonella, Lobesia botrana, Proeulia sp., Solenopsis invicta, Stephanitis takeyai)에 대한 예찰조사를 2020년 4월부터 10월까지 전국 7개 권역, 78지역, 222지점에서 실시하였다. 조사기간 동안, 총 12,045개의 트랩운용/달관조사를 실시하였으며, 9종 모두 발견되지 않았다. 침입우려 고위험 해충 9종에 대한 예찰조사는 2018년부터 시작되었으며, 3년동안의 조사연구를 통해 7개 대학이 참여하는 전국단위의 외래해충 감시체계가 구축되었고 예찰조사 거점 지역들을 확보하였다.

• 한국응용과학기술학회지
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• 제35권4호
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• pp.1472-1479
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• 2018

본 연구는 지속적인 곡예 운동이 여자 체조, 프리스타일 스키어 및 피겨 스케이터 선수의 동적자세 유지 능력에 미치는 영향을 분석하고자 하였다. 이 연구에 참여한 피험자는 운동경력이 4-6년 된 운동선수로서 체조선수 7명, 프리스타일 스키어 선수8명, 피겨 스케이터 7명과 일반 여학생 10명을 통제집단으로 분류하였다. 동적자세의 운동능력을 비교하고자 뉴로컴사의 동적자세측정기를 이용하여 6가지 각 조건에 맞는 이른바, 시각계, 전정계 및 체성감각계가 동원되는 상황을 연출하면서 실험에 임하였다. 자료처리는 일원변량분석을 실시하였고, 사후검증으로는 집단 간의 차이를 보고자 Scheffe로 하였고, 통계학적 유의수준은 .05로 하였다. 연구결과 운동집단 간에는 조건 5에서 프리스타일 선수와 체조선수 간의 유의한 차이가 있었으며, 운동선수 집단과 일반인 여학생 간에는 조건 2, 3, 4, 5, 6에서 유의한 차이가 나타났다. 결론적으로 지속적인 곡예 운동은 평형기관계를 자극하여 동적자세 조절의 향상에 효과가 있는 것으로 사료된다.

• 동의생리병리학회지
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• 제33권2호
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• pp.123-130
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• 2019

In this study, we investigated the effects of MOK pharmacopuncture at high-doses which are increased 10 to 100-fold in clinics, on propylthiouracil (PTU)-induced hypothyroidism in rats and the safety. We measured the changes of body weight, food and water intake, body temperature, the serum levels of thyroid hormones (TSH, T3, and T4), AST and ALT, glucose, lipid metabolites (total cholesterol, HDL-cholesterol, LDL-cholesterol, and triglyceride) and observed histopathological changes of thyroid tissues by H&E staining. We also analyzed the peaks of constituents of MOK using HPLC. In the results, the treatment of MOK pharmacopuncture at high-dose (30 mg/kg) in hypothyroidism-induced rats for 2 weeks was shown the improvement effects on the decrease of body weight, food intake, and body temperature, The MOK pharmacopunture at high dose regulated the imbalance of thyroid hormones, glucose, and lipid metabolites and also inhibited the structural damages of thyroid tissues. In liver damage, the MOK pharmacopuncture at high dose reduced the increase of AST and ALT levels in hypothyroid rats. We identified the MOK constituents in HPLC analysis. In conclusion, the treatment of MOK pharmacopuncture at high dose has a therapeutic effect on hypothyroidism without liver toxicity, suggesting that the MOK pharmacopuncture be usefully applicable to treat with hypothyroidism in clinics.