• 한국경제지리학회지
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• 제15권4호
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• pp.493-514
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• 2012

오늘날 산학 연구협력은 특히 과학 기반 기술 혁신과 연관되어 주요 정책 현안이 되고 있다. 그렇지만 산학 협력의 성격과 정도에 관한 대단위 체계적 계량 자료를 분석한 연구는 거의 없다. 이 논문은 7개 과학 기반 기술에서 과학적 지식 생산에 기여하는 산학 연구협력의 패턴과 추세를 탐구하였다. 세계의 주요 과학 저널에서 발행되는 공동저술 논문을 과학적 연구협력의 지표로 이용하여, 2006년부터 2010년까지 미국 동북부 지역에 주소를 두고 발행된 수만 편의 논문을 분석하였다. 본 연구는 과학 기반 기술에서 5인 이상이 협력하는 연구가 크게 증가하고, 동시에 국제적 협력의 비중이 점점 증가하여 가장 중요한 공간적 스케일이 되고 있음을 보인다. 조직 유형별 협력 형태에 따른 패턴을 비교한 결과, 동북부 지역의 산학 연구협력은 상대적으로 전국적 수준에서 활발하게 수행되고 있었다. 과학 기반 기술에서의 혁신정책은 지역은 물론 전국적 수준에서 수립되어야 할 것을 시사한다.

• 컴퓨터교육학회논문지
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• 제10권1호
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• pp.21-30
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• 2007

e-Learning 시스템이 그 장점과 효과성을 충분히 발휘하기 위해서는 학습자의 동기 유발 및 학습 지속을 위한 세심한 교수 학습 설계가 필요하다. 본 연구에서는 동기 유발 및 학습 지속의 문제를 해결하기 위해 몰입(Flow) 이론과 그와 관련된 선행 연구 자료들을 분석하고 e-Learning의 기술적 환경적 특성을 분석하여 그에 적합한 몰입 경험 촉진을 위한 교수 학습 전략들을 개발하였다. 또한 이러한 전략들의 효과성을 검증하기 위해 해당 전략들을 적용한 시스템을 구현한 후 실제교수 학습 현장에 적용하였다. 그 결과 본 연구에서 개발한 몰입 경험을 위한 교수 학습 전략들은 실제 학습자의 몰입 수준 향상에 도움을 주었으며, 그에 따라 학업 성취도 향상에도 기여했음을 확인하였다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 춘계학술대회
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• pp.907-914
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• 2015

재 공간정보정책에 관련하여 그 개념이나 구성 및 체계에 관한 선행연구는 미미한 수준이며, 그 연구들마저도 정책이론관점에서 공간정보정책의 기본 구조체계를 제시하는 정도이며, 공간정보정책을 정립하기 위한 목적에서 기본 개념을 모색하고 제시하는 정도에 불과한 실정이다. 이에 본 논문에서는 2000년대 중반부터 시작된 기존의 PC기반에서 스마트폰 등의 모바일 기반으로의 새로운 패러다임 변화라는 현재의 스마트사회에 있어, 한국의 미래국가경쟁력을 좌우할 공간정보 기술정책의 바람직한 미래전략설정을 위한 그 추진의 전략방향을 고찰하고 그 방안을 모색해 보고자 한다. 이러한 연구를 통해 글로벌 차원에서 지리공간정보와 관련된 다양한 이슈와 기술 변화를 과학적으로 분석하고 국내 지리 공간정보에 대한 정책 및 연구 개발 로드맵 수립을 지원하는데 활용될 수 있을 것으로 판단된다.

• 한국초등과학교육학회지:초등과학교육
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• 제29권4호
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• pp.401-413
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• 2010

This study analyzed the kinds and frequencies of descriptors in 154 articles in ERIC data base on the 4th day of January in 2010. The titles of the articles includes the words, 'scientific literacy'. As each descriptor is constituted of two words and over, in this study the first word in the descriptor was defined as 'restrictive word' and the rest word(s) as 'target word(s)'. The results are as follows. First, the descriptors which show high frequencies of target words are the traditionally important themes of scientific literacy education. Target words which show relatively high frequency are 'education', 'literacy', 'instruction' and 'countries'. Low frequency word is 'curriculum', which has various restrictive words and represents wide differentiation. Second, among the descriptors which show low frequencies of target words, relatively high frequency descriptors are '(and)society', 'change', 'secondary education', 'concepts', and 'biology', which have been given more attention in scientific literacy research than the rest descriptors. Third, the number of the descriptors that shows largely distributed pattern A, which happens over 15 years continuously, is over the half of all analyzed descriptors, which shows that they have been the major objectives in researches about scientific literacy. Most descriptors of pattern A shows normal distribution of frequency or the trends of increasing frequency as the time is nearer. Fourth, The descriptors are divided into four groups according to the time span. Each research trends are as follows. In later 80s, the research which emphasizes the importance of the sociality and technology in all level school science curriculum. In later 90s the research for educational change of inquiry-centered science curriculum which considers technological literacy in social contexts. In earlier 2000s the research that scientists and science teachers develop science curricula mostly related to scientific principles and thinking in chemistry and biology especially. In later 2000s case studies which relates teaching methods and science process activities to students' attitudes, scientific concepts and curricula.

• 대한인간공학회지
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• 제34권5호
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• pp.501-517
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• 2015

Objective: The aim of this study was to investigate the technology trend on developing helmets based on the analysis of Korean, US, European and PCT patents. Background: The usage of the personal protective equipment such as the safety helmet would be essential for preventing injuries and reducing the severity of injuries depending on the type of activity and the exposed environment. Method: Database of WIPSON was used for searching the patents. The objects were the Korean, US, European and PCT patents registered or opened from January 2011 to December 2014. The keyword to investigate was helmet, and International Patent Classification (IPC) was used for investigating the technology trend of the patents. Results: The cases of US patents annually increased, but the cases of European patents decreased. US patents belonged to all sections but Korean and European patents and PCT patents did not. The largest number of IPC, to which four areas' patents belonged, was 'Headwear' and the second largest one was 'Hygiene'. In the subgroup level, the most common largest subgroups were 'Parts, details or accessories of helmets' and 'Masks, shields, or hoods for welders'. Korean patents had the lowest ratio of single_IPC at 11%, but the ratios of single_IPC for US and European patents were 52%, respectively. 'Human necessities', 'Mechanical engineering', 'Physics', and 'Electricity' were used as a single_IPC, but lower levels of 'Performing operations', 'Chemistry', 'Textiles' and 'Fixed constructions' were used as multi_IPC. Most main applicants had patents which belonged to 'Human necessities'. Conclusion: The cases of US patents annually increased unlike others. The common technologies for creating the helmet were Parts of helmets under Headwear and Shields for welders under Hygiene. Many Korean patents tended to be categorized as multi_IPC, different from others. Application: To know the technological characteristic of patents would be helpful to initial stage developers.

• 한국축산식품학회지
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• 제35권3호
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• pp.370-381
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• 2015

This study was designed to determine the usability of lemon fiber (LF-2%, 4%, 6%) and carrot fiber (CF-2%, 4%, 6%) to produce lowfat beef hamburgers. To that end, a certain amount of fat was replaced with each fiber. The proximate composition, pH value, cholesterol content, cooking characteristics, color, texture profile, and sensory properties of low-fat beef hamburgers were investigated. LF increased moisture content and cooking yield due to its better water binding properties, while CF caused higher fat and cholesterol contents owing to its higher fat absorption capacity (p<0.05). LF resulted in a lighter, redder, and more yellow color (p<0.05). Hardness, gumminess, springiness, and chewiness parameters decreased when the usage level of both fibers increased (p<0.05). However, more tender, gummy, springy, and smoother hamburgers were produced by the addition of CF in comparison with LF (p<0.05). Moreover, hamburgers including CF were rated with higher sensory scores (p<0.05). In conclusion, LF demonstrated better technological results in terms of cooking yield, shrinkage, moisture retention, and fat retention. However it is suggested that CF produces better low-fat hamburgers since up to 2% CF presented sensory and textural properties similar to those of regular hamburgers.

• 한국도로학회논문집
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• 제19권1호
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• pp.107-119
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• 2017

PURPOSES : The desire of drivers to increase their driving speeds is increasing in response to the technological advancements in vehicles and roads. Therefore, studies are being conducted to increase the maximum design speed in Korea to 140 km/h. The stopping sight distance (SSD) is an important criterion for acquiring sustained road safety in road design. Moreover, although the perception-reaction time (PRT) is a critical variable in the calculation of the SSD, there are not many current studies on PRT. Prior to increasing the design speed, it is necessary to confirm whether the domestic PRT standard (2.5 s) is applicable to high-speed driving. Thus, in this study, we have investigated the influence of high-speed driving on PRT. METHODS : A driving simulator was used to record the PRT of drivers. A virtual driving map was composed using UC-Win/Road software. Experiments were carried out at speeds of 100, 120, and 140 km/h while assuming the following three driving scenarios according to driver expectation: Expected, Unexpected, and Surprised. Lastly, we analyzed the gaze position of the driver as they drove in the simulated environment using Smarteye. RESULTS : Driving simulator experimental results showed that the PRT of drivers decreased as driving speed increased from 100 km/h to 140 km/h. Furthermore, the gaze position analysis results demonstrated that the decrease in PRT of drivers as the driving speed increased was directly related to their level of concentration. CONCLUSIONS : In the experimental results, 85% of drivers responded within 2.0 s at a driving speed of 140 km/h. Thus, the results obtained here verify that the current domestic standard of 2.5 s can be applied in the highways designated to have 140 km/h maximum speed.

• 기술혁신연구
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• 제21권1호
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• pp.1-26
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• 2013

본 연구는 정부연구개발투자가 민간부문의 고용에 미치는 장기적인 효과를 검증하기 위해 국내 23개 제조업 부문을 대상으로 패널분석을 수행하였다. 1990년대 중반 이후 IT의 급속한 발전과 더불어 국내 제조업 고용구조에 큰 영향을 준 IMF 구제금융에 따른 산업구조 조정기를 중심으로 전체 표본기간을 IMF 이전과 이후로 나누어 정부연구개발투자가 기업의 고용수요에 미친 영향을 실증분석한 결과 다음의 결과를 도출하였다. 첫째, 정부연구 개발투자는 단기적으로는 고용을 감소시키는 효과를 나타내지만 시간이 지나면서 신제품 혹은 신산업 창출로 인한 고용의 보상효과가 이를 상쇄하면서 고용창출에 긍정적인 효과를 가진다. 둘째, 민간연구개발투자의 고용창출 효과가 정부연구개발투자의 효과보다 3배 이상 크다. 셋째, 기업의 노동수요에 비용요인인 임금 및 이자율은 높은 유의수준으로 고용에 부정적인 영향을 미치고 있다. 이러한 결과는 향후 정부연구개발투자가 새로운 고용창출을 위한 정책수단으로 활용될 수 있다는 정책적 함의를 제공한다.

• 한국초등과학교육학회지:초등과학교육
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• 제29권1호
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• pp.1-12
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• 2010

The purpose of this study is to analyze elementary school students' class contents and activities between the invention class for the gifted under the local education office by the 'Gifted Education Promotion Act' and that under the invention classroom by the 'Invention Promotion Act'. For this study, the survey was conducted to 1,788 elementary school students who attended the invention class for the gifted both under the local education office and under the invention classroom. The analysis of the survey showed that the students of the invention class for the gifted under the local education office had higher motivation and participation rate in class, higher interest in invention, and stronger significantly in a future oriented will than those under the invention classroom. The parents of the invention class for the gifted under the local education office showed more enthusiastic attitude to support their students, and had significantly stronger recognition that the participation of the students in the invention education for the gifted helped enter an advanced school than those under the invention classroom. However, the class contents of the invention class for the gifted under the local education office such as 'understanding the influence of the invention history and products on society', 'scientific inquiry skills for problem solving', 'technological and engineering abilities for creating an invention', 'developing knowledge and abilities about business and management by using a new invention' were not different from those under the invention classroom. In addition, discussion and presentation were not active in the class activities of the invention class for the gifted under the local education office. Therefore, the researchers should compensate and develop a program which can apply strategically differentiated class contents and class activities to the students who participate in the invention class for the gifted under the local education office by the 'Gifted Education Promotion Act'.

• 한국지반신소재학회논문집
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• 제11권1호
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• pp.65-75
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• 2012

1980년 국내에 현대적인 보강토 옹벽이 도입된 이후 최근에는 경제성, 수려한 외관, 시공성 등의 장점으로 인해 보강토 옹벽이 기존의 콘크리트 옹벽을 급속히 대체하고 있다. 이에 본 논문에서는 국내 보강토 옹벽 시장의 현황 및 문제점을 조사, 분석하였다. 보강토 옹벽 시장의 확장과 더불어 벽체변형, 전면블록의 균열, 전반활동 등과 같은 피해사례가 증가하고 있으며, 이러한 문제는 주로 부적절한 설계와 시공관리에 기인한다. 또한 보강토 옹벽 시장의 급속한 성장성에 비해 설계 및 품질관리 등에서의 기술적인 수준이 높지 않은 것으로 파악되었다. 따라서 보강토 옹벽의 설계 및 시공에 대한 통일된 기준이 시급히 마련되어야 한다. 또한 보강토 옹벽의 품질을 향상시키기 위해서는, 설계, 시공 및 경제성에 대한 보다 세심한 검토가 요구된다.