• 과학교육연구지
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• 제41권3호
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• pp.318-333
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• 2017

본 연구에서는 2009개정 교육과정의 중학교 과학교과서에 포함된 탐구 활동이 기존 과학교육에서 강조되어왔던 탐구 기능과 구체적 학생 활동이 강조되는 NGSS의 8가지 과학 실천 측면에서 상호 분석되었을 때 어떤 특성을 나타내는지 생명과학 단원을 중심으로 분석하였다. 분석 결과 학년 구분 없이 탐구 기능에서는 '추리', 관찰', '분류' 순으로 많이 치중되었고, 과학 실천에서는 '자료 분석하고 해석하기'와 '설명구성하고 문제해결 고안하기'에 치우쳐 있었다. 이를 통해 중학교 교과서 내 생명과학 탐구 활동이 탐구 기능뿐만 아니라 과학 실천 요소에서도 다양성이 부족하며 제시하는 활동의 목표가 한정적이라는 것을 보여주었다. 또한 과학탐구 기능과 과학 실천 요소 각 상호 매칭작업을 통해 탐구 기능 중심에서 과학 실천으로의 이행 시 내용 관련성을 검토하고 교과서의 탐구 활동에서 보이는 결과와 비교 분석한 결과 사전 매칭분석에 비해 교과서 내 탐구 활동의 결과가 대체적으로 기초탐구-자료해석/기초탐구-설명고안에 치우쳐 있어서 단조롭게 매칭 되었다. 이는 교과서에 제시된 활동내용의 다양성이 부족함을 보여주는 결과라고 할 수 있다. 본 연구에서는 2009개정 교육과정의 교과서 분석을 통해 단순하고 다양성이 부족한 탐구 활동에서 벗어나 2015개정 교육과정을 구현해나가는 과정에 다양한 과학 실천 요소를 포함시키도록 하는 노력이 절실하게 요구됨을 제언한다.

• 약학회지
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• 제54권4호
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• pp.226-231
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• 2010

Oral fluid has become increasingly popular as an alternative specimen in the field of driving under the influence of drugs (DUID) and work place drug testing. In this study, an analytical method for the detection and quantification of ${\Delta}^9$-tetrahydrocannabinol (THC) and its metabolite, 11-nor-9-carboxy-${\Delta}^9$-tetrahydrocannabinol (THC-COOH) in oral fluid by SPE and GC-MS was established and fully validated. The stability of THC and THC-COOH in oral fluid during storage was also determined by examining the THC and THC-COOH concentration changes depending on time and container materials. Oral fluid samples were kept over 21 days at room temperature, $-4^{\circ}C$ and $-20^{\circ}C$ in two different specimen collection tubes; glass and polypropylene tubes. Three replicates for each condition with different temperature and types of a container were analyzed at five different time points over 21 days. When oral fluid samples were stored in glass tubes, the loss of both THC and THC-COOH was less than 10% at all room temperature, $-4^{\circ}C$ and $-20^{\circ}C$. However, in polypropylene tubes, the loss of both THC and THC-COOH increased significantly over the study period. In particular, the concentration of THC decreased more rapidly than that of THC-COOH at room temperature and the maximal percentage of THC lost was 90.3% after 21 days. The result indicates that it would be necessary to collect oral fluid samples in glass containers and cool the samples until analysis in order to prevent the degradation of analytes.

• Corrosion Science and Technology
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• 제7권4호
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• pp.208-211
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• 2008

Safety operation of main pipelines is primarily provided by anticorrosive monitoring. Anticorrosive monitoring of oil pipeline transportation objects is based on results of complex corrosion inspections, analysis of basic data including design data, definition of a corrosion residual rate and diagnostic of general equipment's technical condition. All the abovementioned arrangements are regulated by normative documents. For diagnostics of corrosion-technical condition of oil pipeline transportation objects one presently uses different methods such as in-line inspection using devices with ultrasonic, magnetic or another detector, acoustic-emission diagnostics, electrometric survey, general external corrosion diagnostics and cameral processing of obtained data. Results of a complex of diagnostics give a possibility: $\cdot$ to arrange a pipeline's sectors according to a degree of corrosion danger; $\cdot$ to check up true condition of pipeline's metal; $\cdot$ to estimate technical condition and working ability of a system of anticorrosive protection. However such a control of corrosion technical condition of a main pipeline creates the appearance of estimation of a true degree of protection of an object if values of protective potential with resistive component are taken into consideration only. So in addition to corrosive technical diagnostics one must define a true residual corrosion rate taking into account protective action of electrochemical protection and true protection of a pipeline one must at times. Realized anticorrosive monitoring enables to take a reasonable decision about further operation of objects according to objects' residual life, variation of operation parameters, repair and dismantlement of objects.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.1133-1147
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• 2020

The purpose of this study is to analyze the level of science and technology development and digital readiness of scientific research institutes based on the author's assessment methodology (a set of evaluations and multifactorial indicators). Keeping with the previous literature, the research is caused by the novelty of the problem, which suggests dividing the literature review into two main research groups: theoretical background, which concentrates on the digital readiness definition, and the impact of digital readiness on science. Moreover, the scientific significance lies in the fact that proposed ideas in the research, developed theoretical and methodological provisions can significantly enrich theories related to the identification of the digital readiness of science and its consumers. Further, the research is devoted to the development of assessment methods of digital changes and analysis of the level of development of digital readiness of scientific research institutes, which is based on the author's assessment methodology (a set of evaluations and multifactorial indicators). The methodology provides an opportunity to build ratings of the digital readiness of scientific-research institutes to the formation and development of a digital economy. Obtained results show that the priority task in the current and the future period is to increase the authority and recognition of scientific organizations, the quality of scientific research, and the formation of demand for scientific products.

• 정보관리연구
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• 제42권2호
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• pp.85-102
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• 2011

전통적으로 과학데이터 시각화는 데이터 분석과 관련이 깊은 연구 수행과정 중의 하나로 간주되어 왔다. 그러나 최근 들어서 과학데이터 시각화의 연구영역 자체가 독립적인 학문분야로서 자리를 잡기 시작하면서 시각화의 기술 및 방법들이 점차 고도화되고 복잡해지고 있다. 그러나 과학데이터 시각화 연구가 개인 및 그룹의 연구자들 스스로의 노력으로 시각화 문제를 해결하는 데 있어서 한계가 있다. 따라서 전문집단에 의한 체계적인 지원의 필요성이 대두되고 있으며, 본 연구는 거시적 관점의 국가수준에서 어떻게 과학데이터 시각화를 체계적으로 지원할 것인가를 정책적인 시각에서 분석하였다. 구체적으로 기존 문헌의 조사를 통하여 주요 성공요인들을 파악하였으며, 집중적으로 투자해야 할 연구의 영역을 설정하였다. 다음으로 국가수준의 시각화 연구지원의 전략적인 방향과 전략적 과제를 제언하였다.

• 한국초등과학교육학회지:초등과학교육
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• 제38권3호
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• pp.331-344
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• 2019

This study aims to analyse science-gifted elementary students' perception of speech in general school class, school science class, and science-gifted class and the relationship between their voluntary speech and scientific creativity. For this, 39 fifth-graders in the Science-Gifted Education Center at Seoul Metropolitan Office of Education in Korea were asked about their frequency of voluntary speech on each class situation, the reasons for such behavior, and their general opinions about speech. Also, researchers collected the teachers' observation on students' speech in class. To get the scores for students' scientific creativity, four different subjects of tasks were presented. The students' scientific creativity scores were used for correlation analysis with their frequency of speech. The main findings from this study are as follows: First, science-gifted elementary students tended to be passive in science-gifted class compared to general school and school science class. Second, the main reason for the low frequency of students' speech in school classes is that they do not have many opportunities to make presentations. Third, a survey of students' general thoughts on speech showed that more students wanted to make a speech voluntarily in class than the opposite. Fourth, the four different scientific creativity tasks had little correlation. Fifth, the correlations between the frequency of voluntary speech and the scores of scientific creativity were mostly low, with significant results only for plant task. Sixth, the correlations between the frequency of voluntary speech and the two components that make up scientific creativity, originality and usefulness, were also mostly low, but significant results for both were found in plant task, with originality having a higher correlation than usefulness. Based on this results, this study discussed the meanings and implications of students' voluntary speech on elementary science education and creativity education.

• 과학교육연구지
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• 제38권2호
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• pp.257-269
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• 2014

이 연구의 목적은 성별과 계열에 따른 고등학생들의 메타인지와 과학적 태도를 분석하기 위한 것이다. 또한 메타인지와 과학적 태도의 하위 요소들간의 관계를 알아보는 것이다. 분석 자료는 고등학생 220명을 대상으로 한 검사지이다. 성별에 따른 메타인지 분석 결과 남학생이 여학생보다 점수가 높게 나타났다. 그러나 t-검증 결과 두 집단간 유의미한 차이는 나타나지 않았다. 계열에 따른 메타인지 분석에서는 이과 계열 학생들의 점수가 문과 계열 학생들보다 높았고, 두 집단간 차이는 유의미한 것으로 나타났다. 과학적 태도에 대한 분석 결과 남학생이 여학생보다 상대적으로 조금 높게 나타났지만 두 집단간 유의미한 차이는 없었다. 반면에 계열에 따른 과학적 태도 분석에서는 이과 계열 학생들이 문과 계열 학생들보다 유의미하게 높은 것으로 나타났다. 메타인지와 과학적 태도 하위 요소들간의 상관 관계 분석 결과 각 요소들간에는 높은 상관관계가 나타났다. 다중회귀분석 결과에서는 모니터, 조절, 비판성, 개방성이 영향력이 있는 것으로 나타났다. 이 연구의 결과는 고등학생들의 메타인지를 촉진하고 과학적 태도를 함양하기 위한 교수-학습 전략을 수립하는 데 기초 자료로 활용될 수 있다. 또한 과학 학습 등 다양한 요인들과의 관계를 분석하는 후속 연구가 이루어질 필요가 있다.

• 한국과학교육학회지
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• 제25권7호
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• pp.711-720
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• 2005

The purpose of this study was to understand mechanisms of scientific discovery and how this can help students, as young scientists, to understand scientific ideas in the science classroom. To unravel this mechanism, this study employed the notion of chaos. This phenomena was rediscovered by Edward Lorenz. In this paper, the general concept of chaos was briefly discussed in relation with previous scientific theories such as Newtonian physics and quantum mechanics. Following this, discovery constraints in terms of available technology at the time was described. In addition, Lorenz's psychological processes during the discovery was also discussed. Based on analysis, major implications for the field of science education were the provision of relevant schemata, the use of cognitive tools, the presentation of problems with various representational forms, and the sharing of ideas with others.

• 건축역사연구
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• 제32권4호
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• pp.7-18
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• 2023

Recognizing that the debate on the original form of the Seokguram Grotto is closely related to the mythologization of the Seokguram Grotto, which is far from factual understanding, this paper is prepared to restore the Seokguram Grotto based on scientific facts. To this end, we will first analyze its active meaning and fiction from three directions: the founding legend, the rediscovery story, and the concept and discourse of the Line of sight for Buddha statue (對佛像視準線), which have contributed to the mythologization of the Seokguram Grotto. The original restoration of the Seokguram Grotto should be based on a scientific understanding of the Seokguram space. However, past debates and restoration attempts have been based on imagination and not on scientific knowledge. Therefore, Chapter 3 attempts a scientific analysis of the light environment of thr Seokguram Grotto and critically examines the existing errors and realistic mythological images to correct the public's spatial perception of Seokguram's architecture and to propose a rational restoration of Seokguram's architectural space.

• 분석과학
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• 제18권5호
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• pp.444-451
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• 2005

참기름에서 스테롤류와 지방산을 간편하고 정확하게 추출하는 방법을 개발하였다. 새로운 방법은 특히 세사민의 추출 효율을 크게 향상하여 세사민과 캄파스테롤의 비율을 크게 향상시켜 감정의 도구로 응용이 가능할 것으로 판단되었다. 또 기타 스테롤류도 확인하였다. 유도체화를 진행시키면 지방산과 스테롤류의 동시 분석이 가능하였으나, 감정의 도구로는 더 많은 실험이 필요할 것으로 판단되었다.