• 영재교육연구
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• 제19권3호
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• pp.669-695
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• 2009

21세기는 과히 로봇 혁명의 시대이다. 불과 몇 해 전만 하더라도 로봇 시장에서의 주류는 산업용 로봇이었다. 그러나 현재는 다양한 유형의 로봇이 여러 가지 목적으로 우리의 일상생활에서 활용되고 있으며, 가까운 미래에는 인간과 유사하게 사고하고 행동하는 로봇이 등장할 전망이다. 결과적으로 로봇 혁명은 인류의 생활양식을 통째로 변화시킬 것으로 예상된다. 따라서 미래 로봇사회에 적응할 창의적 인재 양성을 위해 로봇교육이 이루어져야 하며 특히 로봇의 움직임을 프로그래밍 할 수 있는 기회는 초등정보과학영재에게 논리적 사고력을 함양할 수 있는 효과적인 교육이 될 것이다. 본 논문에서는 로봇교육의 가장 큰 특징인 '다양한 알고리즘을 통한 프로그래밍 교육을 강화하여 일반학생이 아닌 초등정보과학영재를 대상으로 하는 로봇교육과정을 설계하였다. 로봇교육에 대한 연구가 아직은 부족한 실정으로 본 논문의 교육과정을 설계하기 위해 로봇에 대한 흥미를 갖고 있는 학생을 대상으로 한 특기적성 로봇교육과정을 분석하며 그 시사점을 초등정보과학영재를 위한 로봇교육과정 설계 시에 적용하였다. 또한 설계된 교육과정의 타당성을 검증하기 위하여 전문가 집단을 선정한 후에 델파이 조사를 실시하였다.

• 한국생활과학회지
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• 제10권4호
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• pp.399-409
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• 2001

The purpose of this study was to evaluate the preference of image for modern application of Korean traditional patterns. A survey was conducted using the random selection among female undergraduate students in Daegu city. The degree of interest and preference in Korean traditional style or something like that measured by 5 scale method. And then they were classified into two groups which were interest/non-interest group, and preference/non-preference group. The image of Korean traditional patterns consisted of semantic differential scales. Frequency, percentage and mean were analyzed, for difference of groups t-test was analyzed. The results were as fellows; 1. For the degree of interest for Korean traditional patterns, it was showed that 53.8% of total respondents took interest and about 40.4% of them had preference for traditional patterns. the correlation coefficient of the degree of interest and preference was 0.782(p<0.01) and showed that the positive correlation was high. 2. Among 20 kinds of Korean traditional patterns, the degree of preference for the patterns of plants and nature was quite high whereas that for the patterns of geometrical things was low relatively. 3. It was evaluated that pattern of nature was fresh, refined and womanly image generally. It was evaluated that pattern of plants was womanly, fresh, weak, light and soft image and that of animals was heavy, splendid, high-class, manly, strong and positive image. It was evaluated that pattern of geometrical things was the most refined image and high-class, rigid and strong. 4. The statistical significance of mean between interest/non-interest group was showed statistically in the patterns of clouds, mountains, lotus, apricot, orchid, dragon, phoenix and bogey. In case of pattern of orchids, the degree of preference was most different between interest/non-interest group. 5. The pattern of plants showed the most different evaluation for images between interest/non-interest group. For refined/old-fashioned polar adjective images, the interest group evaluated the pattern of plants more refined. 6. For pattern of orchids, the difference of degree of preference between preference/non-preference group was most remarkable in Korean traditional patterns. 7. The pattern of geometrical things showed the most different evaluation for images between preference/non-preference group. For warm/cool polar adjective images, the preference group evaluated the pattern of geometrical things cooler.

• 대한의용생체공학회:의공학회지
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• 제25권1호
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• pp.57-64
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• 2004

최근 심장질환에 의한 사망자 수는 놀랄 만큼 빠른 증가세를 보이고 있다. 인공심장은 혈액의 흐름에 따라 크게 박동류형과 무박동류형으로 나뉘며, 무박동류형 펌프는 비용적형으로 박동류형에 비해 소형화가 가능하다는 장점을 가지고 있다. 이러한 무박동류형 혈액펌프는 다시 구동방식에 따라 축류형과 원심형으로 구분되어지며, 그중 축류형 혈액펌프는 같은 무박동류형인 원심형 혈액펌프와 비교하였을 때 훨씬 간단한 구동장치와 제어장치를 가진다. 혈구가 파괴되어 헤모글로빈이 혈구 밖으로 빠져나가는 것을 용혈이라 하며 혈액이 응고하여 혈관을 막게되는 혈전현상은 이러한 용혈이 주된 원인이다. 따라서 혈액펌프가 구동함에 따라 발생하게 되는 용혈의 수치를 낮추는 것은 혈액펌프를 개발하는데 있어서 중요한 조건 중에 하나이다 이러한 용혈을 평가하기 위한 방법으로는 현재 in-vitro실험이 가장 널리 사용되어지고 있으나, 이러한 체외실험을 하기 위해선 상당한 비용과 장기간의 연구기간이 요구되어진다. 이러한 in-vitro실험의 단 전을 보완하기 위해 개발되어진 CFD해석법은, 엔지니어로 하여금 in-vitro실험을 실시하지 않고 용혈이 발생하는 지역과 용혈발생예측치를 추정할 수 있다. 본 연구의 목적은 in-vitro실험의 결과데이터와 CFD해석의 예측결과데이터의 여러 가지 비교를 통해 CFD해석의 정확성을 검증하고, 또한 이러한 정확성이 검증된 CFD해석법을 현재 개발되어지고 있는 축류형 혈액펌프의 개발단계에 적용하기 위함이다.

• 유통과학연구
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• 제12권6호
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• pp.49-57
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• 2014

Purpose - The world now recognizes environmental disruption as a serious issue when regarding growth-oriented strategies; therefore, environmental preservation issues become pertinent. Consequently, green distribution is continuously emphasized. However, studying the prediction and association of distribution and the environment is insufficient. Most existing studies about green distribution are about its necessity, detailed operation methods, and political suggestions; it is necessary to study the distribution service industry and environmental service industry together, for green distribution. Research design, data, and methodology - ARIMA (auto-regressive moving average model) was used to predict the environmental service and distribution service industries, and the Granger Causality Test based on VAR (vector auto regressive) was used to analyze the causal relationship. This study used 48 quarters of time-series data, from the 4th quarter in 2001 to the 3rd quarter in 2013, about each business type's production index, and used an unchangeable index. The production index about the business type is classified into the current index and the unchangeable index. The unchangeable index divides the current index into deflators to remove fluctuation. Therefore, it is easy to analyze the actual production index. This study used the unchangeable index. Results - The production index of the distribution service industry and the production index of the environmental service industry consider the autocorrelation coefficient and partial autocorrelation coefficient; therefore, ARIMA(0,0,2)(0,1,1)4 and ARIMA(3,1,0)(0,1,1)4 were established as final prediction models, resulting in the gradual improvement in every production index of both types of business. Regarding the distribution service industry's production index, it is predicted that the 4th quarter in 2014 is 114.35, and the 4th quarter in 2015 is 123.48. Moreover, regarding the environmental service industry's production index, it is predicted that the 4th quarter in 2014 is 110.95, and the 4th quarter in 2015 is 111.67. In a causal relationship analysis, the environmental service industry impacts the distribution service industry, but the distribution service industry does not impact the environmental service industry. Conclusions - This study predicted the distribution service industry and environmental service industry with the ARIMA model, and examined the causal relationship between them through the Granger causality test based on the VAR Model. Prediction reveals the seasonality and gradual increase in the two industries. Moreover, the environmental service industry impacts the distribution service industry, but the distribution service industry does not impact the environmental service industry. This study contributed academically by offering base line data needed in the establishment of a future style of management and policy directions for the two industries through the prediction of the distribution service industry and the environmental service industry, and tested a causal relationship between them, which is insufficient in existing studies. The limitations of this study are that deeper considerations of advanced studies are deficient, and the effect of causality between the two types of industries on the actual industry was not established.

• 유통과학연구
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• 제16권8호
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• pp.63-68
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• 2018

Purpose - Lettuce (Lactuca sativ L.) is one of the economically important vegetable crops, which worldwide market value is over 100 billion U.S. dollar. In Korea, about 89.7 kilo ton of lettuce was produced in 3400ha in 2016, recoded as No. 1 vegetable crop in domestic green house production. However, recently, domestic lettuce production and cultivation areas are all getting decreased. Thus, novel approaches are needed to be implemented to revive the production. Research design, data and methodology - In this review paper, we first prioritized the end-user traits which are imperative to positively stimulate the domestic lettuce market and discussed relevant genomics strategies. Especially, we assessed a possibility whether school meal program would be a potential niche market. Results - The genomics technologies, which become widely applied in the crop biotechnology since 2008 when next generation sequencing method was developed, may be a good solution in the crop improvement, efficiently gathering valuable information of agriculturally useful traits. Significantly, in lettuce, the high quality whole genome sequence, based on Lactuca sativa cv. Salinas, is publically available and this genomics platform, thus, would be implemented in lettuce breeding program to innovate relevant end-user traits both for the farmers and customers, including the disease resistance to the Fusarium wilt, productivity under hot weather conditions, various nutritional qualities and so forth. These improvements will boost domestic lettuce industries in the near future. Conclusions - Due to the nutritional distinctions comparing to the western style lettuces, domestic leaf lettuces could be one of the important vegetables in the school meal programs. To make it happen, we would better devise diverse recipes to make a salad with it, instead of only using as a wrap vegetable. Meanwhile, novel lettuce varieties need to be developed, which are favorable to the students and also easy to be handled with while processing. Overall, to achieve international competence in the lettuce industries, we need to create elite lettuce varieties that satisfies domestic farmers as well as customers, suitable to various niche markets, such as school meal program. Thus, efficient breeding programs using genomics approaches should be established in advance and careful monitoring on the preference of the related customers for a niche market be continued persistently.

• 문화기술의 융합
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• 제6권2호
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• pp.271-280
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• 2020

본 연구는 글로벌 기업의 집단형 문화와 합리형 문화 간의 관계에서 여성리더 특성의 매개효과를 검증하고자 하는 것이 연구목적이다. 본 연구를 통하여 촉진자, 선도자, 생산자, 지시자 리더십 간의 관계에서 여성리더의 직위와 경력이 매개효과로 미치는 영향을 분석하고자 하였다. 개념적 연구모형은 집단형 문화, 여성리더 특성, 합리형 문화의 3개 요인으로 설계되었다. 글로벌기업을 대상으로 리더십 유형과 조직문화와 관련된 500개의 조사대상표본에 기초해서 구조방정식모형을 사용하여 집단형 문화와 합리형 문화 간의 관계에서 여성리더 특성의 매개효과를 분석한 결과 다음과 같은 연구결과를 얻었다. 첫째, 촉진자 리더십은 여성리더의 직위와 경력에 긍정적인 영향을 미쳤다. 둘째, 선도자 리더십은 여성리더의 경력에 긍정적인 영향을 미친 반면에, 여성리더의 직위에 직접적인 영향을 미치지 않았다. 셋째, 여성 리더의 직위와 경력은 생산자 리더십에 직접적인 영향을 미치지 않았다. 넷째, 여성 리더의 직위와 경력은 지시자 리더십에 긍정적인 영향을 미쳤다. 다섯째, 촉진자 리더십은 생산자 리더십에 긍정적인 영향을 미쳤고, 선도자 리더십은 지시자 리더십에 긍정적인 영향을 미쳤다. 여성리더 특성의 매개효과를 통제한 상태에서 본 연구의 결과는 집단형 문화가 합리형 문화에 미치는 영향을 실증연구를 통해서 검증함으로서 학술적 기여도를 높였으며, 또한 정책적, 혹은 실무적 시사점을 제시한 연구이다. 본 연구는 리더십 유형과 조직문화 연구 분야에서 여성리더의 직위와 경력 변수를 사용하여 매개효과를 검증하였다는 점에서 의미 있는 연구이다.

• 한국산림과학회지
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• 제94권6호
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• pp.362-369
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• 2005

글자의 읽기 쉬움의 정도를 나타내는 가독성은 자기안내식 해설판의 정보전달 수단으로서의 효과성을 결정할 수 있는 중요한 요소이다. 본 연구는 자기안내식 해설판의 글자디자인 구성요소들이 가독성에 미치는 영향을 조사함으로써 보다 효과적인 해설판 디자인을 위한 자료를 제공하기 위하여 시행되었다. 자료수집은 2003년 8-11월중 내장산 국립공원 내 자연탐방로 방문객 중에서 선정된 총 375명의 응답자에 대하여 탐방로 주변에 설치된 해설판의 글자디자인 구성요소에 대한 설문조사를 통하여 이루어졌다. 이 중 94.7%의 응답이 본 연구의 분석을 위하여 이용되었다. 본 연구결과에 따르면, 총 19개 속성 중 5개의 속성, 즉 글자수, 글자체의 수, 전 해설판에서 그림이 차지하는 면적율, 글자간격 및 글자크기가 가독성에 영향을 미치는 것으로 나타났으며, 이들 속성의 가독성에 대한 설명력은 글자수, 글자체의 수, 그림 면적율, 글자간격, 글자크기 순으로 크게 조사되었다. 이들 5개 속성이 해설판 가독성의 50.0%를 설명하였다. 해설판의 가독성에 미치는 주요 영향인자들에 대한 보다 큰 관심과 관리노력을 집중시킴으로써 해설판의 효과성을 효율적으로 증대시킬 수 있을 것으로 판단된다.

• Genomics & Informatics
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• 제3권4호
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• pp.166-171
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• 2005

Background: Smoking effects are relatively well-documented, especially on cancers and cardiovascular diseases. However, the direction and magnitude of association between smoking and obesity remain unclear. Conflicting results so far are thought to stem from the multiple confounding structure of smoking and other obesogenic life style characteristics. Methods: Cotwin control study is a genomic epidemiology design, in which the other twin (=cotwin) serves as a control of the twin. Cotwin control study, discordant for smoking habits can provide powerful evidence of association between smoking and obesity by completely matching genomic information, intrauterine environment, and almost all environmental factors. We selected 3,697 like-sex twin pairs (2,762 male and 935 female pairs) out of 63,666 pairs of adult twins in the existing Korea Twin and Family Register, whose smoking habits are discordant. We used the information of obesity as body mass index (BMI, $kg/m^2$) blood pressure, and blood cholesterol level at the time or later than the smoking information. Paired t-test was done to compare the smoking effects. Results: Lifetime smoking rate was 80.1 % (47.9 current smoker) for men and 10% (1.7% current smoker) for women. Among 2,762 and 935 male and female like-sex twin pairs, 363 male pairs and 20 female pairs correspond to the definition of smoker-nonsmoker pair. The male smokers demonstrated increase in BMI by 0.47, while female smokers show slight decrease (by 0.13), which were not statistically significant. Diastolic and systolic blood pressure, and cholesterol level were slightly increased among smokers by 1.85 mmHg, 0.62 mmHg, and 1.28 mg/dl for men. For women, the results show increase in diastolic blood pressure (3.42mmHg) and cholesterol level (1.25 mg/dl), and systolic pressure (8.17 mmHg). Conclusion: The results refute the possibility that smoking can reduce BMI. Considering the direct adverse effect of smoking, it should be emphasized that smoking do not decrease obesity and thus increase overall metabolic syndrome.

• 복식
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• 제61권10호
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• pp.72-88
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• 2011

This study is about the costume relics that were excavated from M10 of the 6th site, M13 and M14 of the 8th site among all the Runghai(龍海) ancient tomb sites that were known as the royal family's tombs of Balhae, which were built from the late 8th century to the early 9th century. These costume relics were also introduced in the academic journal of Chinese archaeology(考古) 6 in 2009. The summary of the results that focused on finding features of the costume relics and its meaning were as follows: 1. Male and female statues, both of which were excavated from the Runghai ancient tomb sites, had the shape and composition of the government official's costumes such as the Danryeong(團領), Bokdu, and Gwadae. The female's hairstyle and accessories were quite similar to other costume relics of Balhae. In particular, the male statues wearing the Danryeong and Bokdu were considered as the normal figures of government officials of Balhaeafter the mid 8th century. 2. The female statue wearing the male attire is considered as a maid, and we can confirm that women dressing up like a man was a popular trend in Tang(唐), and this trend was introduced to Balhae. 3. The back flap(垂脚) of Bokdu that the male statue is wearing in M10 of the 6th site, has a shape that has not been found in the ancient relics of both Balhae and Tang. Therefore, it is considered as a unique shape of Bokdu of Balhae. However, it needs to be observed more and discussed in the future. 4. In regards to the Gwadae, the outside of the Gwadae is decorated with jade and has an embossed carving that is gold inside. The Gwadae of the Runghaisites has a unique design and it is distinguished from other ancient relics. 5. The gold trefoil crown and the leather conical hat that were found in M14 of the 8th site can be seen as the basic composition of official's hats in ancient Korea. Also, the motif of the gold trefoil is closely related to Anthemion that is often seen in the relics of the Three Kingdom period. Thus, we can assume according to this important finding that the style of ancient Korea official's hats came from either the king or a royal family of Balhae after the mid 8th century.

• 문화기술의 융합
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• 제6권1호
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• pp.171-178
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• 2020

현대인의 생활환경 내 여가시간 비중이 증가하고, 정원에 대한 관심이 높아짐에 따라 숲을 정원으로 활용하고자 하는 움직임이 정부 차원에서 진행되고 있다. 하지만, 숲을 정원으로 활용하기 위해서는 "숲 정원"이라는 새로운 개념을 도입하여야 하고, 새로운 개념을 사용하기 위해서는 그 개념이 가지고 있는 가치를 학술적으로 분석한 후, 사용하여야 한다. 따라서 우리는 이 연구에서 숲 정원의 개념을 명확히 하기 위하여 전문가에 의한 델파이 기법을 수행하였으며, 설문조사에 의한 결과를 요인분석을 통하여 분석하였다. 그 결과, 델파이기법에 의해서 숲정원의 구성요소와 설명요소를 추출할 수 있었으며, 추출된 항목들 중 상위 25개 항목에 대하여 요인분석을 실시한 결과, 숲 정원이 가지고 있어야 하는 5가지 가치를 추출할 수 있었다. 추출된 5가지 가치는 성상적가치, 경관적가치, 생태적가치, 역사/문화적가치, 이용적 가치이며, 이 모든 가치를 가지고 있고, 숲과 정원의 역할을 동시에 수행하면서 지속적인 유지관리가 필요한 공간을 숲 정원이라고 할 수 있다. 하지만, 본 연구의 정의는 국내 최초의 정의라고 할 수 있으며, 지속적인 연구와 실증실험, 대상지 평가 등을 통하여, 구체화, 현실화 되어야 한다. 다양한 대상지에 숲 정원을 조성해 나아감으로써, 숲정원의 개념적 정의가 확고해 질 수 있다고 할 수 있다.