• 한국환경과학회지
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• 제10권6호
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• pp.451-459
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• 2001

Adsorption characteristics of triadimefon and diniconazole(pesticide) by natural zeolite($CLI_N$) and several synthetic zeolites were Investigated. The synthetic zeolites used En this study were as follows: Faujasite synthesized from coal fly ash($FAU_F$); Zeolite synthesized from the mixture of FAU and Na-Pl synthesized from the ratio of Cheju scoria 6 to coal fly ash 4 by weight($(FAU + Na-Pl)_{SF}$); waste fluid catalytic cracking catalyst($FCC_W$). The distribution coefficient, $K_D$ and Freundlich constant, $K_F$ decreased in the fellowing sequence : $FCC_W ＞ FAU_F ＞ (FAU + Na-Pl)_{SF} ＞CLI_N$ among the zeolites. The distribution coefficient and the adsorption capacity of $(FAU + Na-Pl)_{SF}$ for pesticides were 4.4 and 2.6 times higher for triamefon, and 2.0 and 2.4 times higher for diniconazole than those of $CLI_N$, respectively.

• 대한두경부종양학회지
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• 제15권2호
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• pp.239-242
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• 1999

Spindle cell carcinomas of the head and neck are unusual neoplasms that are histologically biphasic, having both squamous cell carcinoma and apparently malignant spindle cell or sarcomatous element. Controversy about the histogenesis of these tumors has resulted in various terminology ; sarcomatoid carcinoma, pseudosarcoma, carcinosarcoma, and spindle cell carcinoma. The clinical course and natural history of these tumors are also variable. We report a case of 64-year-old male who complained of a neck mass. The patient was treated with extended radical neck dissection and postoperative radiotherapy, but the primary site of spindle cell carcinoma could not be found. We reviewed the clinical course, treatment, prognosis, and histogenesis of spindle cell carcinoma of the head and neck.

• 영어어문교육
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• 제7권2호
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• pp.187-210
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• 2002

The goal of this study is to investigate the course development for the Korean students in the immersion English program. This study describes the detailed curriculum and makes some suggestions to improve the courses for regular, extracurricular, and special activities in the five-week immersion English program managed by KAIST in summer 2001. This immersion English program was designed to develop the students' communicative competence in speaking English with native speakers in the age of globalization, by providing students with the English-speaking immersion setting. The results of the students' tests and the data concerning the program revealed that the program was very significant in improving students' communicative competence focused on communication and presentation and in attaining the high motivation for the natural English communication by performing the student-centered and task-based extracurricular activities and special events.

• 한국지구과학회지
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• 제41권4호
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• pp.391-404
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• 2020

This study identified and examined earth science education department programs in Korea. Major courses provided by 11 universities and their course requirements were analyzed, and the main research results are as follows. First, many basic courses, other major requisite, and elective courses are provided in geology, astronomy, and atmospheric science. oceanography, geophysics, earth environmental science, and natural disaster and energy resources had fewer major requisite courses provided in addition to basic courses, and few elective courses were offered. Second, many courses in science education focused on earth science, while others focused on general science and there were few courses that covered education theory regarding the specific subject. Third, science course application requirements emphasized the understanding of science in general or of earth science specifically. From the above results, additional studies are proposed to reflect on the current state and supplement these programs.

• 한국환경교육학회지:환경교육
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• 제13권1호
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• pp.14-22
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• 2000

This attempts to find out training system of environment education teacher in Korea. The results are summarized as follows. The primary and secondary school have focused on environment education and the environment course was designated as a subject, but only 12% of the 2741 middle school chose the environment subject in 1998. The environment education course is not popular among students. The environment education is an interdisciplinary subject, which is composed of natural science, social studies, earth science, and medical science, that is why the subject is so unsystematic and complicated that appropriate teaching methods and contents for school classes are not able to be developed. Moreover, material and manuals in environment education for students and teachers are limited. While the contents of environment education is composed of field experience learning and experiment learning, but lecture-centered instruction is emphasized in school because of materials, time and experts. Over 300 environmental education teachers are annually produced, but the ratio of employment low. is, Therefore, a retraining program for environment education teacher needs to be developed.

• 한국환경교육학회지:환경교육
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• 제22권1호
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• pp.83-96
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• 2009

This paper is intended to investigate the awareness of the elementary school students about the natural environment preservation. For this purpose, 21 elementary school students from the 5th grade of elementary school located in Gwangju city were selected. Especially, we focused on the students' conceptions related to 1) the environments, 2) the safe national land development activity to face several natural disasters and 3) the environmental preservation with the national land development. To evaluate the change of students' conceptions for the national land development, the students were also participated in establishing the plan of the national land development using the model of the natural environment after learning in detail about the natural environments. The results of this study showed that most of the students recognized the concept of the environments as a simple knowledge itself and pollution rather than the protection of environment. In the course of the safe national land development activity to face several natural disasters, the students expressed standardized answer indicating the knowledge based thinking of the environments. According to the results of the environmental preservation with the national land development and the hypothetical project of the national land development, the students did not have enough knowledge for the natural environment preservation although they had understanding of natural disasters and environmental preservation. Therefore, it is necessary to stress affirmative concept for the environment related to the preservation of natural environment. Also we need to develop the syllabus, which is related to the environmental studies, in the elementary educational program leading students to participate in the environmental preservation with the national land development reasonably and practically.

• 한국환경복원기술학회지
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• 제17권5호
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• pp.1-17
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• 2014

Research was initiated to investigate early establishment characteristics and germination pattern of Kentucky bluegrass (KB, Poa pratensis L.) under natural room temperature and to analyze differences between alternative and natural conditions for a practical application. Fifteen cultivars of KB were evaluated in the study. Daily and cumulative germination pattern were measured and analyzed on a daily basis. Differences were observed in germination percentage, germination pattern, days to the first germination and days to 75% germination. Germination percentage was variable with cultivars at the end of study. It was 75.75 to 90.25% under natural condition. There were considerable variations in early germination characteristics and germination pattern among KB cultivars according to germination conditions. The first germination in all entries tested was initiated between 6 and 9 DAS (days after seeding) under ISTA (International Seed Testing Association) condition. But it was observed between 9 and 12 DAS under natural condition, being 3 to 5 days later as compared with ISTA condition. On the first date of a germinating process, the germination rate was 0.25% to 25.00% under ISTA condition, while 0.50% to 13.25% under natural condition. Days to the 75% germination were 15.08 to 28.80 DAS under ISTA condition and 17.78 to 28.75 DAS under natural condition. Midnight II, Excursion and Midnight were the fastest cultivars under ISTA condition, while Odyssey the fastest one under natural condition. Regardless of germination condition, the slowest cultivar was Voyager II, being over 4 weeks to 75% germination percentage. For the most cultivars, days to 75% germination under natural room temperature condition were 1 to 8 days slower than under ISTA condition. From this study information on differences in germination characteristics and pattern among cultivars would be usefully applied for KB establishment such as golf course construction. Prior to on-site seeding, a comprehensive germination test is practically recommended due to a possible decline in germination capability during domestic distribution and storage after import.

• 생태와환경
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• 제39권1호통권115호
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• pp.32-40
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• 2006

2003년 4월부터 2004년 10월까지 임진강 하류에서 어류상과 어류군집을 조사한 결과는 다음과 같다. 채집된 어류는 총 23과 80종이었으며 이중 한국고유종에 속하는 종은 25종(31.1%)이었다. 국외에서 도입된 외래어종은 C. cuvieri, L. macrochirus, M. salmoides 등 3종이었고 개체수 비교풍부도가 1.4%이었다. 천연기념물에 속하는 종은 H. mylodon 1종이었고 멸종위기야생동 ${\cdot}$ 식물에 속하는 종은 A. signifer, P. tenuicorpa, G. macrocephalus, G. brevibarba등 4종이었다. 회유성 어종으로는 C. ectens, A. japonica, P. altivelis, T. obscurus 등 4종이 출현하였다. 지점별 우점종은 Z. platypus (St. 1), M. yaluensis (St. 2), H. labeo (St. 3,4), C. ectens (St. 5) 등이었다. 임진강 하류역에서는 한강 하류역보다 출현종이 많았으며 우점도 지수는 낮고 종다양도 지수와 종풍부도는 높았다.

• 아시안잔디학회지
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• 제20권1호
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• pp.93-105
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• 2006

최근 많은 수의 골프장 건설로 인하여 국토의 상당면적이 원지형의 변화 또는 파괴되고 있으며 주변 생태계가 급속한 변이를 겪고 있다. 골프코스 건설을 위해서는 정밀하고 효율적인 설계를 요하지만 기존의 통상적 설계방식으로는 사업의 방대성으로 인한 설계자료의 처리에 한계를 가지고 있었다. 특히 공사 후의 경관 변화에 대한 예측이나 환경영향 저감대책에 대하여 적절한 대안을 제시할 적절한 수단이 없었다. 따라서 이러한 문제점을 해결하기 위하여 지형정보시스템(GIS)을 골프코스 설계에 적용하여 건설에 따른 물리적 영향을 최소화시킬 수 있는 친환경적인 골프코스 설계 기법개발에 대하여 연구하였다. 연구된 내용은 지형정보시스템을 기초자료입력 단계에서부터 최종 성과물 단계까지 적용시켜 전 설계과정을 전산화하며, 부수적으로 골프 경기의 기능적 효과 증대 토지이용의 적정성, 코스유지 관리의 용이성 등을 사전 검토할 수 있는 친환경적 전산설계기법을 개발 연구하였다.

• 한국콘텐츠학회논문지
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• 제16권4호
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• pp.144-152
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• 2016

본 연구는 의과대학을 포함하지 않은 보건의료대학에서 실물(시신)실습이 용이하지 않다는 사실에 근거하여, 인체해부학 수업에서 골학실습을 시행했을 때 맨눈해부학의 교육개선 효과가 있는지 살펴볼 목적으로 실시한 국내 최초의 연구이다. 연구방법은 임상병리학과 1학년 학생을 대상으로 인체해부학 수업에 골학실습을 실시하였고 실습 전 후에 자기보고식 설문과 실습 종료 후 지문평가 하였다. 설문지와 지문평가지의 각 문항은 고등교육 교과과정과 성별에 따라 분석하였다. 연구결과, 골학실습이 해부학수업의 흥미를 유발할 뿐만 아니라 해부학 수업을 이해하는데 도움이 되었고, 실습 후 대부분의 학생들은 뼈의 이름을 잘 알고 있었으나 이과보다는 문과출신 학생이 뼈의 해부학적 방향을 묻는 질문에 매우 취약했다. 그리고 대부분의 학생은 골학실습 후에도 대부분의 학생들은 실물실습을 하고자 하는 바람을 가지고 있었다. 결론으로 골학실습은 의과대학을 포함하지 않은 보건의료대학 임상병리학과 학생에게 해부학수업에 대한 기대 부응 및 학습효과의 증대를 가져왔다. 본 연구를 통해 맨눈해부학 교육은 이론뿐만 아니라 실습이 병행한다면 학습효과를 높일 수 있음을 제언한다.