• International Journal of Aeronautical and Space Sciences
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• 제18권2호
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• pp.206-214
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• 2017

In this study, measurement of thermophysical properties of materials at high temperatures was performed. This experiment employed a heater device to heat the material to a high temperature. The images of the specimen surface due to thermal load at various temperatures were recorded using charge-coupled device (CCD) cameras. Afterwards, the full-field thermal deformation of the specimen was determined using the digital image correlation (DIC) method. The capability and accuracy of the proposed technique are verified by two experiments: (1) thermal deformation and strain measurement of a stainless steel specimen that was heated to $590^{\circ}C$ and (2) thermal expansion and thermal contraction measurements of specimen in the process of heating and cooling. This research focused on two goals: first, obtaining the temperature dependence of the coefficient of thermal expansion, which can be used as data input for finite element simulation; and second, investigating the capability of the DIC method in measuring full-field thermal deformation and strain. The results of the measured coefficient of thermal expansion were close to the values available in the handbook. The measurement results were in good agreement with finite element method simulation results. The results reveal that DIC is an effective and accurate technique for measuring full-field high-temperature thermal strain in engineering fields such as aerospace engineering.

• Asian Pacific Journal of Cancer Prevention
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• 제15권12호
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• pp.4795-4800
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• 2014

Background: Few studies have directly compared clinical efficacy and safety among Chinese herb injections (CHIs) for gastric cancer (GC). The present study aimed to compare CHIs combined with FOLFOX regimens for GC to show which provides the best CHIs results. Materials and Methods: 9 electronic databases and 6 gray literature databases were comprehensive searched in April 20, 2013. According to inclusion and exclusion criteria, two reviewers independently selected and assessed the included trials. The risk of bias tool described in the Cochrane Handbook version 5.1.0 and CONSORT statement were used to assess the quality of the trials. All calculations and graphs were performed and produced using ADDIS 1.16.5 software. Results: A total of 541 records were searched and 38 RCTs met the inclusion criteria (2,761 participants), involving 10 CHIs. The results of network meta-analysis showed that compared with FOLFOX alone, combinations with Kanglaite, Astragalus polysaccharides, Cinobufacini, or Yadanziyouru injections could furthest strengthen ORR, improve the quality of life, reduce nausea and vomiting, and reduce the incidence of leukopenia (III-IV). Conclusions: Kanglaite injection, Astragalus polysaccharides injection, Yadanziyouru injection were superior to other CHIs in clinical efficacy and safety for GC. The conclusions now need to be confirmed by large sample size direct head-to-head studies.

• 시스템엔지니어링학술지
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• 제12권1호
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• pp.7-23
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• 2016

Plant engineering industry is considered as a key industry which will drive the future of Korea. However, Korean plant engineering companies have recently made huge losses in overseas businesses and the lack of engineering capability is pointed out as a main cause of this situation. Unlike Korean plant engineering companies, world leading engineering companies such as Flour and Bechtel have their own systems Engineering Standards/Guides ensuring successful fulfillments of the concept and basic design processes. An engineering standard for an organization is an essential means to shorten the time for engineering design, to maintain the engineering quality and to secure the engineering efficiency in the development of the complex system. Korean plant engineering companies'lack of engineering capability comes from the absence of the engineering standard. In the paper, we have developed a steel-making plant engineering standard based on a systems engineering standard. We chose both ISO/IEC/IEEE 15288 and NASA SE Handbook as main reference standards. First, we have introduced a life-cycle definition and a physical hierarchy of a general steel-making plant. Then we have introduced detailed engineering processes of each life-cycle stage. The full scope of the study was from the feasibility study to the basic design but in the paper, we have only introduced detailed engineering processes and exit criteria for the feasibility study and the concept design.

• 한국수산과학회지
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• 제32권3호
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• pp.368-373
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• 1999

Topex/Poseidon sea surface heights are compared to tide gauge sea levels in the South Indian Ocean in the period of January 1993 to December 1995. A user's handbook (AVISO) for processing sea surface height data was used in this study. Topex/Poseidon sea surface heights were obtained from satellite data at the proximity of tide gauge stations. These data were reproduced by a linear interpolation with the interval of 10 days and were processed by the Gaussian filter with a 60-day window. The tide gauge sea levels were obtained in the same manner as the satellite data. The main results on RMS (Root-Mean-Square) and CORR (CORRelation coefficient) in our study were shown as follows: 1) on the characteristics between two data (in-situ and model data), the results (RMS=2.96 cm & CORR=$92\%$ in the Amsterdam plateau, and RMS=3.45 cm & CORR=$59\%$ in the Crozet plateau) of the comparison of Topex/Poseidon sea surface heights with tide gauge sea levels, which was calculated by in-situ data of obsewed station showed generally low values in RMS and high values in CORR against to the results (RMS=4.69 cm & CORR=$79\%$ in the Amsterdam plateau, and RMS= 6.29 cm & CORR= $49\%$ in the Crozet plateau) of the comparison of Topex/Poseidon sea surface heights with tide gauge sea levels, which was calculated by model data of ECMWF (European Center for Medium-range Weather Forecasting), and 2) on the characteristics between two areas (Kerguelen plateau and island), the results (RMS=3.28 cm & CORR= $54\%$ in the Kerguelen plateau) of open sea area showed low values in RMS and high values in CORR against to the results (RMS= 5.71 cm & CORR=$38\%$ in the Kerguelen island) of coast area, respectively.

• 한국기록관리학회지
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• 제12권3호
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• pp.137-153
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• 2012

공공기관의 회의록은 정부의 정책 결정 과정의 투명성과 공정성을 답보할 수 있는 중요한 기록물이다. 본 연구는 공공기관의 회의록의 생산과정의 이해와 함께 회의록 생산 현황과 환경 실태를 파악하여 공공기관의 회의록 생산을 활성화하기 위한 개선 방안을 제시하는 것을 그 목적으로 한다. 이를 위해서 사례연구와 설문조사를 통해 회의록 생산에 대한 이해와 현황을 밝히고자 하였다. 사례연구는 미국의 회의공개법, 호주의 내각핸드북, 우리나라의 공공기록법을 분석하였다. 회의록 생산현황을 위해서는 공공기록법에서 규정하는 2012년 현재 지정회의 대상 54개 지정회의에 대해서 조사하였다. 주된 조사내용은 제도화, 회의, 생산, 담당자, 이용 및 교육으로 구성되었다. 이러한 연구방법을 통해서 도출된 개선방안은 제도적 측면, 운영 체계, 교육 측면으로 구분하여 제시하였다. 즉, 회의록의 특성을 반영한 제도적 규정이 필요하며, 이를 실제적으로 운영하는 필요한 체계가 필요하다. 또한 회의록 생산과 이용에 관한 교육 역시 필요하다.

• 한국균학회지
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• 제26권2호통권85호
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• pp.230-238
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• 1998

1982년부터 1996년까지 평창 오대산, 수원 숙지산, 청양 칠갑산, 원주 치악산, 해남 두륜산, 등 총 5곳에서 채집되었고 농촌진흥청 농업과학기술원 생물자원부 표본실 및 순천향대학교 자연과학대학 생물학과 표본실에 보관중인 남방그물버섯류 12점의 표본을 확보하였고 Moser(1983) 및 Singer(1986)와 Hongo(1987)의 분류체계에 준하여 분류 동정한 결과 남방그물버섯속은 방추남방그물버섯 [Austroboletus fusisporus (Kawam. apud Imaz. & Hongo) Wolfe]과 가는대남방그물버섯[Austroboletus gracilis (Peck) Wolfe], 그리고 미로남방그물버섯(신칭)[Austroboletus subvirens (Hongo) Wolfe]의 3종으로 확인되었다. 색명은 "Methuen Handbook of Colour" (Kornerup & Wanscher, 1983)를 인용하였고, 또한 귀신그물버섯과의 속 검색표를 작성하였다.

• 한국환경교육학회지:환경교육
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• 제18권2호
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• pp.113-125
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• 2005

Korea, China and Japan show distinct features in their school environmental education, which are derived from their own spreading processes. Japanese school environmental education has developed as a result of assimilating of anti-pollution education and nature education, and has a feature that makes much of nature experiences. The introduction of 'Period for Integrated Study' in 2002 seems to begin activating Japanese school environmental education. Chinese school environmental education started in higher education institutions around the middle of 1970's, and has a feature that makes a point of scientific approach, even in primary education schools. The two government ordinances,'National Action Program for Environmental General Knowledge ($1996{\sim}2010$)' and 'Educational Scheme of Environmental Theme Study for Elementary and Secondary School Students' issued in 2003, gradually promote school environmental education in China. It is remarkable that Science and Technology Centers for Youth and also increasing environmental NPOs often support environmental activities in elementary or secondary schools. The most notable feature of Korean school environmental education is that 'Environment' has already offered as a regular elective subject in junior high school, and official 'Environment' textbook has published since early 1990's. Though, the adoption rate of 'Environment' is not yet so high. Each country's peculiar issues are as follows. Japan: (1) Students often lack basic knowledge about environmental important problems. (2) 'Period for Integrated Study' is now threatened with cutting hours by the idea of increasing periods for basic subjects to keep high achievement. China: (1) There are large regional differences and school distinctions in operation of environmental education. (2) Adult environmental education needs to be expanded, because the most part of Chinese have no experience of school environmental education. Korea: (1) The relationship between the administrative division which plans school environmental education and teachers group is not quite well. The adoption rate of 'Environment' in junior high school needs to be improved. The training of many teachers for environmental education instructors may be the most important and effective cooperative action among Korea, China and Japan, and for that purpose we ought to work on making a better handbook for instructors, at first.

• 한국ITS학회 논문지
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• 제12권3호
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• pp.114-128
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• 2013

현재 온실가스 배출량 산정 방법은 온실가스 저감대책 효과 분석이 불가능하며 차량의 이동특성이 반영이 안 된 실정으로 이를 극복할 수 있는 온실가스 배출량 산정 방법의 필요로 본 연구가 시작되었다. 교통수요 분석을 통해 차종, 교통상황에 따른 HBEFA 배출계수로 배출량을 산정하는 방법을 통해 고양시에 적용하여 분석하였다. 본연구의 지자체단위 교통수요 추정방안을 통해 실질적인 교통 이용특성에 맞는 온실가스 배출량이 산출되었다. 온실가스 지자체별 통행요금, 속도제한 등 온실가스 저감 요인들이 교통수요 모형에 반영되어 온실가스 저감 대책에 대한 효과분석 후 환경영향을 줄일 수 있는 방안을 강구하여 온실가스 저감 대책 마련에 효율적으로 이용될 것으로 판단된다.

• 한국수학교육학회지시리즈A:수학교육
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• 제51권1호
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• pp.1-19
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• 2012

In this study, contents of 'the 2007 revised curriculum handbook' and 16 kinds of mathematics textbooks were analyzed first. The purpose of this study is to examine the understanding state of students at general high schools by making questionnaires to survey the understanding state on contents of chapter of complex number based on above analysis. Results of research can be summarized as follows. First, the content of chapter of complex number in textbook was not logically organized. In the introduction of imaginary number unit, two kinds of marks were presented without any reason and it has led to two kinds of notation of negative square root. There was no explanation of difference between delimiter symbol and operator symbol at all. The concepts were presented as definition without logical explanations. Second, students who learned with textbook in which problems were pointed out above did not have concept of complex number for granted, and recognized it as expansion of operation of set of real numbers. It meant that they were confused of operation of complex numbers and did not form the image about number system itself of complex number. Implications from this study can be obtained as follows. First, as we came over to the 7th curriculum, the contents of chapter of complex number were too abbreviated to have the logical configuration of chapter in order to remove the burden for learning. Therefore, the quantitative expansion and logical configuration fit to the level for high school students corresponding to the formal operating stage are required for correct configuration of contents of chapter. Second, teachers realize the importance of chapter of complex number and reconstruct the contents of chapter to let students think conceptually and logically.

• 디지털콘텐츠학회 논문지
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• 제17권4호
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• pp.243-255
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• 2016

본 연구의 목적은 국가직무능력표준(NCS)에서 제시된 직업기초능력 중 대인관계능력 교육을 위한 이러닝 콘텐츠 구성요소 및 설계 전략을 도출하는 것이다. 대인관계능력 교육과정 및 내용은 표준화를 위해, NCS 개발 및 운영을 주관하는 한국산업인력공단에서 개발한 NCS 직업기초능력프로그램을 준용하였다. 표준화된 내용을 토대로 이러닝 콘텐츠 구성요소 및 설계 전략을 도출하기 위하여 선행연구 및 이러닝 사례 분석, 교수자 및 전문가 대상 설문과 면담 조사를 실시하였다. 조사 결과를 토대로 이러닝 콘텐츠를 개발하였으며, 개발된 이러닝 콘텐츠의 설계 전략의 타당성과 교육적 효과 분석을 위해 학생, 교수자, 전문가를 대상으로 평가를 실시하였다. 평가 결과, 적용한 이러닝 콘텐츠의 설계 전략이 적절하며, 개발한 이러닝 콘텐츠가 NCS 직업기초능력의 대인관계능력을 학습하는 데 도움이 되는 것으로 나타났다.