• Computers and Concrete
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• 제4권1호
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• pp.1-18
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• 2007

Over the past decades, an enormous amount of effort has been expended in laboratory and field studies on concrete durability estimation. The results of this research are still either widely scattered in the journal literature or mentioned briefly in the standard textbooks. Moreover, the theoretical approaches of deterioration mechanisms with a predictive character are limited to some complicated mathematical models not widespread in practice. A significant step forward could be the development of appropriate software for computer-based estimation of concrete service life, including reliable mathematical models and adequate experimental data. In the present work, the basis for the development of a computer estimation of the concrete service life is presented. After the definition of concrete mix design and structure characteristics, as well as the consideration regarding the environmental conditions where the structure will be found, the concrete service life can be reliably predicted using fundamental mathematical models that simulate the deterioration mechanisms. The prediction is focused on the basic deterioration phenomena of reinforced concrete, such as carbonation and chloride penetration, that initiate the reinforcing bars corrosion. Aspects on concrete strength and the production cost are also considered. Field observations and data collection from existing structures are compared with predictions of service life using the above model. A first attempt to develop a database of service lives of different types of reinforced concrete structure exposed to varying environments is finally included.

• 대한지리학회지
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• 제31권2호
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• pp.138-159
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• 1996

해방후 50년간 우리 나라의 자연지리학 연구는 주로 지형학과 기후학에 의해 주도 되어 왔다. 자연지리학이 지니는 종합적인 학문적 성격에도 불구하고 개별 각론들이 독자적 으로 연구되어 왔고 그 연구 대상이나 연구 방법이 워낙 다양하기 때문에, 자연지리학 연구 의 전체적인 방향성이나 패러다임을 찾기가 힘들다. 지난 50년간 우리 나라 자연지리학 연 구중에서 지형학과 기후학을 제외한 나머지 연구를 자연지리학 일반으로 간주하고 이들 연 구를 자연지리학 총론, 토양지리학, 식물지리학, 수문지리학, 인간과 자연 환경이라는 주제로 구분해 정리하였다. 원래 자연지리학이 추구하던 통합적 접근방법이 점차 사라지고 자연지 리학 각론들이 각기 이웃한 지구과학과 밀접한 관계를 맺으면서 발전하여 왔다. 다학문적 해결책만이 유일한 대안이 되어 버린 환경 시대를 맞아, 자연지리학이 자연 환경에 대한 고 유의 통합적 접근 방법으로 재무장하여 환경 문제에 대한 주도적 학문으로 부활되기를 기대 한다.

• 한국환경과학회지
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• 제19권3호
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• pp.343-351
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• 2010

Since the effect of environmental education at class using textbooks or materials related to environment is limited, the importance of activities for field experience is getting increased day by day. Thereby, the education tends to change into the type of education providing students with direct environmental experience. Students attending the science high school have excellent aptitude and ability for science and will lead the development of science in the future. Now it is urgent to develop various experiential programs which are helpful for them to establish desirable values on environment. However, the field of environmental education that allows science high school students equipped with ample environmental knowledge to improve environment sensitivity and have proper environment awareness is quite restricted as of now. Natural exploration activities are the programs which provide science high school students having lack of chance for environmental education with good opportunities to contact nature and also play significant roles in arousing their interest in issues related with environment. Therefore, it is thought that they will let science high school students explore the natural features of Korea, understand the importance of preserving environment and ecosystem profoundly, and encourage environmental awareness and will of environmental practice. Thereupon, with the study subjects of 121 first and second graders at U Science High School, this article analyzed their recognition of the necessity for environmental education and environmental pollution problems before and after the natural exploration activities, and conducted a survey on their satisfaction after the natural exploration activities and analyzed it. The result of this research is as follows. First, it was shown that the natural exploration activities were effective to raise the science high school students' awareness of issues related with environmental pollution. Second, the natural exploration activities had effect upon enhancing the students' willingness of environmental practice. Third, there was statistically significant correlation between the science high school students' satisfaction with the natural exploration activities and their achievement in the science subject. Fourth, there also was a statistically non or weakness significant correlation between their satisfaction with the natural exploration activities and preference for the science subject. In particular, it was found that students preferring biology indicated higher satisfaction.

• Journal of Forest and Environmental Science
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• 제36권3호
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• pp.243-254
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• 2020

This study was conducted to develop a forest education program through middle school curriculum linkage. We used the ADDIE model, comprising the five phases of Analysis, Design, Development, Implementation and Evaluation, to secure the objectivity of the program. In the Analysis phase, middle school textbooks were analyzed while considering middle school students' needs for curriculum linkage and the developmental stages of adolescents. The Design phase focused on promoting an understanding of curriculum subjects based on what was reviewed in the Analysis phase and concretized and organized a program that can be implemented in the forest, with a focus on science and physical education, based on the results of middle school students' needs. We also established the objectives and goals of curriculum linkage forest education, established the concept of the program, and selected the educational contents, teaching-learning methods, and evaluation methods. In the Development phase, we developed a 2-night, 3-day program linkage with the middle school curriculum and created a manual for instructors and a workbook for students. In the Implementation phase, we revised and supplemented the program through the first test operation with 24 students in their second year of middle school, after which, we carried out a six-session program for the 2-night, 3-day as the second test operation with 17 students in their second year of middle school. In the Evaluation phase, the program was evaluated by the students who participated in the second test operation using questionnaires on satisfaction and curriculum linkage understanding as well as rating scales for attitudes toward forests and environmental sensitivity. The results showed that middle school students showed positive significance in satisfaction and understanding of the middle school curriculum as well as attitudes toward forests and environmental sensitivity through the forest education program.

• 한국학교보건학회지
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• 제13권1호
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• pp.63-84
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• 2000

Primary school is regarded as an important period when many health-related behaviors and life-styles begin to be formed. Acquiring them through school heath education has a strong influence on the health promotion of not only the family but also the community. Primary school health education in Korea has a systematic flaw in that health-related subjects are divided and taught under various subjects in primary school. In order to develop a proper school health curriculum, it is essential to assess what is currently being taught. In this study the current health education of the 6th grade primary curriculum was investigated to improve school health education. The purpose of this study is to identify the health education contents and time in textbooks of the 6th grade primary school curriculum. In this study, the textbooks & teacher's teaching manuals of the 6th grade curriculum were analyzed with a health instruction framework for Korean schools developed by the Korean Nurse Association & Korean School Health Education Association in 1993 and health care framework for health education curriculum presented by Kim in 1991. The results are as follows ; 1) Health education hours of the curriculum are 206 hours, about 34.3 hours a year. 2) The contents of health education were divided into nine subjects at primary schools. Organizing principles of learning experience(eg, integrity, sequence and continuity) were not considered sufficiently. The physical education & natural science subjects include a lot of health education contents. 3) The major content areas are community & environmental health areas and daily healthy life areas. 4) The major areas at each grade level are daily healthy concerns and safety & first-aid 5) The remarkable contrast to the 5th primary school curriculum are that environmental health is offered to the first grade step by step, and that drug use & abuse and mental health education are included in the 6th primary school curriculum. 6) The main contents of health education in 1st, 2nd. and 3rd grade curricula consist of treatment & recovery health functions. Those of the 4th grade curriculum consist of treatment & recovery health functions, and daily healthy life functions. Those of the 5th grade consist of growth & development functions. Those of the 6th grade consist of treatment & recovery health, growth & development functions. Most health care functions belong to physical health care. The results above suggest that we put together the divided contents of health education and manage them on the basis of systematic integration.

• 한국철학논집
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• 제28호
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• pp.155-182
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• 2010

환경 윤리에 대한 윤리학적 의견이 분분하기는 하지만 인간과 자연에 관한 관계의 재정립, 인간의 자연에 대한 의식 및 인식의 전환, 도덕적 의무와 책임의 확대 등이 도덕·윤리과에서 담당해야 할 환경 윤리 교육의 공통된 주제로 모아진다. 곧 '환경 교육'은 전 교과에서 시행될 수 있지만, '환경 윤리 교육'은 도덕·윤리과의 정체성적 성격을 갖는다고 할 수 있다. 『도덕』 교과서에서 환경 문제에 관한 단원은 외형적인 틀은 체계를 갖추었다고 할 수 있다. 하지만 모순되는 관점의 병렬적 진술, 문명과 자연의 이분구도, 동양 사상에 대한 비주류적 접근 혹은 개인적 태도에 초점을 맞춘 진술 등이 문제점으로 지적될 수 있을 것이다. 윤리와 사상에서도 생태주의와 인간 중심주의의 대결구도, 인간을 환경 혹은 생태계의 암적인 존재로 몰아가고 있는 것이 문제점으로 지적될 수 있다. 교수-학습 과정에 있어서 윤리 교육은 '지정행(知情行)'의 통합 교육이 되어야 한다. 그런데 환경 문제의 근원적인 원인을 '인식'에 둔다면, 고등학교 환경 윤리 교육의 교수-학습의 중요도는 '인지>정의, 행동'으로 되어야 한다. 고등학생은 환경 윤리학에 대한 고차의 지식과 관점을 비판적으로 검토할 수준이 되기 때문이다. 동양 사상의 자연관도 기왕의 환경 윤리학의 '관점'의 틀을 통해 동일차이를 설명하는 방식이 되어야 한다. 또 유학, 도가, 불교를 묶어서 '동양'이라는 틀로 설명할 것이 아니라 각각의 사상이 갖고 있는 자연에 대한 관점이 비교되어야 한다. 즉 환경 윤리학의 관점과의 동일-차이/ 유, 불, 도의 동일-차이가 종횡으로 설명된다면 기왕의 환경 윤리학을 보완 내지는 제3의 방식이 제시될 수도 있을 것이다.

• 한국환경과학회지
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• 제17권9호
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• pp.981-992
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• 2008

This study examined how to produce new methods of copper (II) sulfate crystallization by using a small-scale chemistry tool such as small-scale reaction surface and petri dish. The making of copper(II) sulfate is included in the 5th grade elementary science textbooks. Various copper(II) compounds were reacted with a 2 M sulfuric acid solution. The result of this study is as follows: Seven small amounts of copper(II) compounds were reacted with a few drops of 2 M sulfuric acid solution at room temperature to make a copper(II) sulfate crystal of triclinic shape. Using the petri dish method, a copper(II) sulfate crystal could be identified within one hour of reacting copper(II) hydroxide, copper(II) carbonate, copper(II) nitrate, copper(II) perchlorate, cupric(II) formate from a few drops of 2 M sulfuric acid solution at room temperature. When using the lap top method for copper(II) perchlorate, cupric formate, a proper crystal could be identified within one hour as well. SSC methods were used for the first time to make a copper sulfate crystal via chemical reaction. We can make a copper(II) sulfate crystal using a simple method which is easier, safer and saves time in class. And since a small quantity of chemicals are being used in SSC chemical methods, waste is greatly reduced. This lessens the amount of environmental problems caused by the experiment. This can be helpful in preserving nature. In addition the cost of chemical and laboratory equipment is greatly reduced because it uses material that we find in our daily lives. There will be continued study of small-scale methods such as improvement of new programs, study and training of teachers, and securing SSC tools. I would like to suggest such as SSC methods are applicable in elementary School Science. I would like it to become a wide spread program.

• International Journal of Computer Science & Network Security
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• 제22권8호
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• pp.25-34
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• 2022

Today, further education of adults in the UK is one of the developing areas of continuing education. The Open University with distance learning, in the process of which innovative forms and methods based on computer and telecommunication technologies are used, is particularly successful in the organization of additional education of the adult population. The advantages of distance learning, multimedia - the latest information technologies, which provide the combination of graphic images, video, sound with the help of modern computer tools, are noted. The basic principles and forms underlying the technologies and forms of work with the elderly are defined. The international experience of implementing "Universities of the Third Age" is summarized. The most widespread approach in adult education in Great Britain is informational. The use of computer technologies motivates a new paradigm in educational methods and strategies, which requires new approaches, forms of learning, and innovative ways of delivering educational materials to adult learners. Information technologies have gained great popularity in such activities as distance learning, online learning, assistance in the education management system, development of programs and virtual textbooks in various subjects, online search for information for the educational process, computer testing of students' knowledge, creation of electronic libraries, formation of a single scientific electronic environment, publication of virtual magazines and newspapers on pedagogical topics, teleconferences, expansion of international cooperation in the field of Internet education. The information technology of synchronous distance learning "online" has gained considerable popularity in the educational process today. A promising direction is the use of multimedia technologies in educational activities to create a design of a virtual computer environment by decoding audiovisual information.

• 한국가정과교육학회지
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• 제32권3호
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• pp.161-177
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• 2020

본 연구는 2015 개정 중학교 가정 교과서의 '청소년기의 소비생활' 단원을 지속가능한 발전(ESD)의 측면에서 분석해 ESD와의 연관성을 찾고, Romey 분석을 통해 '청소년기의 소비생활' 단원의 탐구 성향을 분석하였다. 이를 위해 먼저 선행연구에서 사용된 ESD와 관련된 평가 기준을 정리하여 환경적 관점(천연자원, 기후변화/재해예방 및 완화, 지속가능한 농촌과 도시), 경제적 관점(기업의 지속가능성, 시장경제, 빈부격차 완화), 사회·문화적 관점(인권/평화/인간보호, 문화적 다양성과 이해, 건강/안전, 시민참여, 국가경영)으로 11개의 핵심 내용을 가진 분석틀을 설정하였다. 설정한 분석틀을 바탕으로 중학교 가정 교과서 12종의 '청소년기의 소비생활' 단원의 학습 내용을 분석하였고, Romey의 탐구적 교과서 분석방법에 따라 본문문장, 사진·삽화·표·그래프, 활동과제를 분석하였다. 분석결과 경제적 관점의 '시장경제', '국가경영'의 핵심 요소를 모든 교과서가 본문문장, 사진·삽화·표·그래프, 활동과제의 3가지 형태로 다양하게 제시하고 있었으나, 건강/안전, 시민참여, 지속가능한 농촌과 도시, 기업의 지속가능성 핵심 내용의 내용 요소는 상대적으로 부족해 ESD의 다양한 내용을 다루는 교과서 개발이 필요한 것으로 보았다. 또한 Romey 분석 결과 대부분의 교과서에서 본문문장, 사진·삽화·표·그래프는 권위적 성향으로, 활동과제의 경우 탐구적 성향으로 나타났다. 청소년들의 지속가능한 발전을 위한 소비 가치관 형성과 행동 실천을 위해 보다 다양한 ESD 관련 내용을 가정과 수업에 반영하고, 탐구적 성향의 학습활동을 수업에 창의적으로 활용할 필요가 있다. 또한 가정과 ESD 수업 모델을 개발해 가정과 교육 현장에서 실천하여 효과를 살펴볼 필요가 있을 것이다.

• 한국가정과교육학회지
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• 제22권4호
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• pp.15-29
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• 2010

본 연구는 중학교 2학년 기술 가정 교과 '의복 마련과 관리' 단원에서 환경교육 학습 주제를 선정하고, NIE 탐구 공동체 교수 학습 과정안 및 학습자료를 개발하여 수업에 적용하는 것을 목적으로 하며, 환경의식함양을 위한 수업개선을 위한 기초자료를 제공하고자 한다. 연구방법으로 2007년 개정 기술 가정과 교육과정과 제 7차 교육과정 중학교 2학년 기술 가정 교과서 10종의 의생활 단원을 분석하여 환경교육과 관련된 내용요소를 추출하여 '의복의 소재', '의복 구입과 사용 및 보관', '의복의 세탁', '의복의 재활용과 폐기' 학습 주제를 선정하고, 총 8차시 분량의 NIE 탐구공동체 활동 교수 학습 과정안을 개발하였다. 부산광역시 소재의 E중학교 2학년 3개 학급 학생 97명을 대상으로 수업한 후 환경의식과 NIE 탐구공동체 수업에 대한 흥미도, 태도를 살펴보았다. 연구결과 중학생들은 다양한 신문 자료를 모으고 분석하여 비판적, 창의적, 배려적 사고를 강조하는 토론 위주의 탐구공동체 활동을 통해, 일반적 환경인식은 전체적으로 향상되었다. 학습주제 '의복의 소재', '의복의 구입 과 사용 및 보관' '의복의 세탁', '의복의 재활용과 폐기'와 관련된 환경의식도 유의미하게 높았다. NIE 탐구공동체 활동(신문토론 수업)에 대한 흥미도 및 태도도 매우 높게 향상되었다. NIE 탐구공동체 활동에 대한 학생의 평가는 그동안 접해보지 않는 새로운 내용구성과 NIE 탐구공동체 활동 학습방법이 교과서 중심의 강의식 수업보다 더 재미있어 학습 내용을 이해하고 환경의식을 함양하는 데 도움이 되었다 하였다. 이러한 결과로 볼 때 NIE 탐구공동체 활동 교수 학습 과정안은 학습의 흥미도와 태도를 향상시킬 뿐만 아니라 의생활 환경의식 함양에도 매우 효과가 있으므로 개발된 교수 학습과정안과 학습 자료는 교육현장에서 활용되기를 기대한다.