• 대한원격탐사학회지
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• 제39권6_1호
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• pp.1517-1522
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• 2023

본 연구에서는 Second Simulation of the Satellite Signal in the Solar Spectrum Vector를 활용하여 Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD)의 기대 오차(expected error, EE)가 KOMPSAT-3A 지표반사도(surface reflectance, SR)의 정확도에 미치는 영향을 평가한다. 연구에서 다양한 지상 AOD와 그에 따른 MODIS AOD EE를 고려함으로써, 파장이 짧고 태양천정각(solar zenith angle, SZA)이 높을수록 SR 오류가 증가한다는 결과를 확인했으며, 이는 파장과 SZA 고려 사항을 통합하여 대기보정 알고리즘을 개선하기 위한 추가 연구가 필요하다는 점을 강조한다. 또한, 이 연구는 대기보정 과정에서 다른 위성의 AOD 자료 활용에 대해 더 잘 이해하기 위한 기초 자료를 제공하고 대기보정 기술 발전에 기여할 것으로 예상한다.

• 대한지역사회영양학회지
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• 제14권4호
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• pp.363-373
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• 2009

This study was performed to investigate the nutrition knowledge, attitudes, and dietary habits of physical education (PE) major and non-majors of male college students. The subjects were 253 students residing in Gyeonggi area. Nutrition knowledge scores of PE major students were lower than that of non-major students. Both PE major and non-major students reported TV, radio, and internet as their primary sources of nutrition information. Overall dietary attitude scores of two groups did not differ significantly, but PE major students showed more positive attitudes than non-major students for 'Enjoy eating foods that are good for health'. PE major students took more number of meals a day and took more irregularly than non-major students. Also they used more nutrient supplements than non-major students. PE major students drank more amounts of alcohol and drank more frequently than non-major students. But the smoking status of the two groups was not significantly different. PE major students scored higher than non-major students in dietary habits on balance of meals in spite of their low nutrition knowledge scores. Therefore, it is suggested that nutritional programs for PE major and non-major college students should be developed. (Korean J Community Nutrition 14(4) : $363{\sim}373$, 2009)

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 International Conference
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• pp.515-520
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• 2007

본 연구의 목적은 농산물 이력추적 시스템을 사용하는 생산자들의 시스템에 대한 만족과 지속적인 사용의도에 영향을 주는 요인을 파악하여 농산물 이력추적 시스템의 활성화를 위한 기초자료를 제공하는 것이다. 실증적인 검증을 위하여 재사용의도와 관련한 선행연구들을 검토하여 TAM과 ECT를 결합시킨 Extended ECT 모델을 제안하고 실제 농산물 이력추적 사업에 시범참여하고 있는 생산자 100명을 상대로 설문조사를 실시하였다. 분석 결과, 지각된 유용성 및 용이성, 수익성은 시스템 만족에 긍정적인 영향을 미치며 이는 지속적인 사용의도로 연결되었으나 지각된 용이성과 유용성이 직접적으로 지속적인 사용의도에 영향을 미치는 것은 아닌 것으로 나타났다. 이 결과는 농산물 외의 식품 이력추적 시스템에도 포괄적으로 적용이 가능하다.

• 디지털융복합연구
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• 제9권5호
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• pp.113-121
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• 2011

정보보호에 대한 중요성이 점차 증대됨에 따라 관련 업무를 수행할 수 있는 전문인력에 대한 수요 역시 증가하고 있다. 하지만, 양질의 전문인력을 양성하는데 있어 현실적인 문제점이 존재하며 이에 대한 장 단기적 해결방안이 요구된다. 본 논문에서는 정보보호 전문인력 양성을 위한 정보보호 필수요구지식을 직무에 따라 제시하고, 융합전공 기반의 교육인증 프로그램 및 향후연구를 제안하였다. 이를 위하여 미국의 정보보호 교육인종 프로그램을 분석하는 한편, 국내 현실을 반영한 정보보호 교육인증 프로그램의 성공요인을 제시하였다.

• Journal of Information Technology Applications and Management
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• 제9권4호
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• pp.103-126
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• 2002

Information technology becomes more important to small and medium-sized enterprises. Due to the limit of manpower and capital investment in small and medium sized enterprises, how to successfully implement information systems is very critical issue. Previous research shows that lack of systematic methodology for evaluating and directing informatization is a major obstacle for successful implementaion of information systems. This study developed the methodology for evaluating and directing informatization in small and medium-sized enterprises. Empirical study has been conducted to find out major measurement of evaluation as well as validate the model. Finally the systematic guideline, evaluating information level and directing informatization, has been developed in order to help enterprises successfully implement information systems.

• Environmental Analysis Health and Toxicology
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• 제30권sup호
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• pp.1.1-1.5
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• 2015

Objectives Despite the great contribution made by chemical substances to the development of modern civilization, their indiscriminate use has caused various kinds of damage to the global environment and human beings. Accordingly, the major developed countries and international society have tried to ensure the safe use of chemicals and a reduction in the use of hazardous chemicals through the establishment of the United Nations Environment Programme and various international agreements. In this reason, we tried to introduce about Green Chemistry progress at the present in worldwide and Korea. Methods We checked and analyzed relative journals, reports using keyword as like Green Chemistry, alternative chemicals, eco-friendly etc. and major country's government homepage search. Results Green Chemistry theory, which argues for the reduction or removal of harmfulness in chemicals throughout their entire life-cycle, has been spreading, and major developed countries, such as the US and Denmark, have developed and operate programs to provide reliable chemical information to help replace hazardous chemicals. Korea has also been conducting studies as like eco-innovation project. Through this project the "Alternative Chemical Search program," has been developed, distributed, and operated since 2011 to provide reliable information to small and medium-sized businesses that have difficulties collecting information to ensure conformity to international regulations. The program provides information that includes the regulations of major countries and Korea, information on 340 alternative chemicals, 70 application cases, and 1:1 consulting. Conclusions The Alternative Chemical Search program is expected to contribute to the establishment of response systems for regulation of Korean small and medium-sized businesses, and it also will be used to provide basic data for Korean hazardous chemical regulation, together with the Act on the Registration and Evaluation, etc. of Chemical Substances and the Chemical Control act, making it possible to establish an infrastructure for Green Chemistry in Korea and to increase national competitiveness.

• 한국통신학회논문지
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• 제36권12C호
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• pp.744-752
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• 2011

지능형 감시 분야에서 이상행위를 검출하는 것은 오랫동안 연구되어온 주제로 다양한 방법들이 제안되어 왔다. 그러나 많은 연구가 움직이는 객체의 개별적인 추적이 가능하다는 것을 전제로 하여 찾은 가려짐이 발생하는 실생활에 적용하는데 한계가 있다. 본 논문에서는 객체 추적이 어려운 복잡한 환경에서 장면의 주된 움직임을 분석하여 비정상적인 행위를 검출하는 방법을 제안한다. 먼저, 입력영상에서 움직임 정보를 추출하여 Visual Word와 Visual Document를 생성하고, 문서 분석 기법 중 하나인 LDA(Latent Dirichlet Allocation 알고리즘을 이용하여 장면의 주요한 움직임 정보j위치, 크기, 방향, 분포)를 추출한다. 이렇게 분석된 장면의 주요한 움직임과 입력영상에서 발생한 움직임과의 유사도를 분석하여 주요한 움직임에서 벗어나는 움직임을 비정상적인 움직임으로 간주하고 이를 이상행위로 검출하는 방법을 제안한다.

• 대한원격탐사학회지
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• 제36권4호
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• pp.573-586
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• 2020

PM (particulate matter) is of interest to everyone because it can have adverse effects on human health by the infiltration from respiratory to internal organs. To date, many studies have made efforts for the prediction of PM10 and PM2.5 concentrations. Unlike previous studies, we conducted the prediction of tomorrow's PM10 concentration for the Air Korea stations using Chinese PM10 data in addition to the satellite AOD and weather variables. We constructed 230,639 matchups from the raw data over 3 million and built an RF (random forest) model from the matchups to cope with the complexity and nonlinearity. The validation statistics from the blind test showed excellent accuracy with the RMSE (root mean square error) of 9.905 ㎍/㎥ and the CC (correlation coefficient) of 0.918. Moreover, our prediction model showed a stable performance without the dependency on seasons or the degree of PM10 concentration. However, part of coastal areas had a relatively low accuracy, which implies that a dedicated model for coastal areas will be necessary. Additional input variables such as wind direction, precipitation, and air stability should also be incorporated into the prediction model as future work.

• 정보처리학회지
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• 제7권4호
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• pp.18-26
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• 2000

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2003년도 가을학술발표대회
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• pp.98-99
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• 2003