• 한국초등과학교육학회지:초등과학교육
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• 제23권1호
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• pp.1-7
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• 2004

The purpose of this study is to analyze elementary school students' personality, scientific attitude and to find the correlation between elementary school students' personality and scientific attitude. To determine this, the distribution of sixth graders' personality and scientific attitude was examined and correlation between the lower categories of each one was analyzed. The test tools and the subject were decided through the two preliminary examination, personality test and scientific attitude test were investigated appling to a total of 354 sixth-grade students at eight elementary schools in this study. The test results were analyzed with averages, standard deviations, correlations, ANOVA using SPSS/PC/sup +/. The major results of analysis are as follows. First, the distribution of scientific attitude proved that the average of boys' curiosity was higher than that of girls' curiosity, but girls' average was higher than boys' average in criticalness property, cooperation property, preparation property, continuation property and patience property. The distribution of upper group and lower group in personality properties revealed that the ratio of upper group was higher than that of lower group in activity property, social property, but the ratio of lower group was higher than that of upper group in responsibility and reflective property. Second, the socio-populational variables affecting 6th graders' personality' and science attitude were a sex, a sibling order. The cognition variables affecting 6th graders' personality and science attitude were preference, extent of usability to practical life and interest of science. Third, analyzing the correlation between lower categories of personality and lower categories of science attitude revealed that activity property of personality rather highly correlated to willingness property, critical property at .399(p<.01), .351(p<.01) respectively. and that consideration property of personality highly correlated to curiosity, critical property at .451 (p<.01), .415(p<.01) respectively.

• 한국콘텐츠학회논문지
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• 제21권8호
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• pp.388-402
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• 2021

인공지능(AI)의 효용성은 다양한 사례를 통해 입증되었으며, 이젠 정부 또한 적극적인 AI의 주요 수요자이자 공급자의 역할을 수행하고 있다. 이에 따라, AI 서비스에 대한 국민의 사용 의향에 대한 연구는 매우 중요한 가치를 지니게 되었다. 따라서 본 연구는 정부의 행정가치 실현에 대한 기대, 전자정부 사용경험 등 주요 설명 변수들이 국민의 AI 서비스 사용 의향에 대해 미치는 영향을 파악하기 위해 확장된 기술수용모형을 활용하여 분석을 시행하였다. 분석 결과, 국민은 AI 서비스가 효과성, 책무성과 연관된 분야에 미치는 영향이 높다고 생각할수록 사용 의향이 높았던 반면, 투명성에 연관된 분야는 유의미한 영향이 없었다. 그 외에 전자정부 서비스가 용이하다고 느낄수록, 개인정보 공개에 적극적일수록, 초연결사회에 대한 기대가 높을수록 AI 서비스에 대한 사용 의향이 높았다. 본 연구는 국민의 적극적인 AI 서비스의 사용을 유도하여 첨단사회의 도래를 앞당기기 위한 정부의 역할을 제시하였다는 점에서 의의가 있다.

• 국제지역연구
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• 제22권1호
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• pp.141-159
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• 2018

본 연구는 중국 상하이 시에 거주하거나 출퇴근하는 사람들을 대상으로 하여, 스마트폰 택시앱의 가치속성에 대한 지각, 만족도 및 택시 앱 사용빈도 등의 영향요인을 탐색하는데 목적이 있다. 총 306명을 대상으로 하여 조사한 연구결과는 다음과 같다. 택시 앱 이용실태 조사 결과, 대상자들 중 가장 많은 수가 택시 앱을 이용한지 1년 이상이라고 응답하였으며, 1주일에 1~2번이용 하고 있는 것으로 나타났다. 또한 조사대상자들의 연령, 학력에 따라 택시 앱 이용실태에 차이가 있는 것으로 나타났다. 조사대상자들은 스마트폰 택시 앱의 가치속성 중 용이성 지각을 5점 척도 중 4.41점으로 가장 높게 지각하고 있으며, 반대로 위험성 지각은 3.34점으로 가장 낮게 지각하였다. 마지막으로 사회. 인구학적 특성과 택시 앱 이용 특성을 통제한 상태에서, 택시 앱 가치 지각 변수들이 택시 앱 만족도에 유의한 영향을 미쳤다. 구체적으로, 서비스 품질, 유용성, 시스템 활용성을 높게 지각할수록 만족도도 높은 것으로 나타났으며, 특히 시스템 활용성과 유용성 지각이 미치는 영향력이 높게 나타났다.

• 한국지반환경공학회 논문집
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• 제23권5호
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• pp.33-39
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• 2022

오염물질이나 지하수의 흐름 및 유출의 차단, 해수 침투 방지 및 노후화된 제체의 보수·보강 등을 목적으로 활용되는 Cement-Bentonite 차수벽에 혼합되는 시멘트 일부를 GGBS로 치환하여 사용하는 Slag-Cement-Bentonite 차수벽은 높은 강도와 낮은 투수계수, 우수한 내구성 및 내화학성 등의 여러 장점으로 지하수 제어가 필요한 여러분야에서 다양하게 활용되고 있다. 그러나 이와같은 장점에도 불구하고 국내에서는 Slag-CB 차수벽에 대한 다양한 연구가 이루어지지 않아 적용사례가 많지 않으며, 특히, 시멘트를 대체하여 혼합되는 GGBS는 생산되는 국가에 따라 성질이 상이하여 국내 Slag-CB 차수벽의 활용성을 높이기 위해서는 국내에서 생산되는 GGBS를 활용한 Slag-CB 차수벽에 대한 다양한 연구가 필요한 실정이다. 이에 본 연구에서는 Slag-CB 차수벽의 활용성을 향상시키기 위해 국내에서 생산되는 GGBS를 혼합한 Slag-CB 차수벽의 GGBS 치환율에 따른 블리딩율, 응결시간, 강도 및 차수성 등을 평가하였다. 그 결과, 국내에서 생산된 GGBS를 혼합한 Slag-CB 차수벽은 CB 차수벽에 비해 낮은 블리딩율과 우수한 강도 및 차수성을 보였으며, 이러한 성능향상은 GGBS 치환율이 높을수록 더욱 효과적인 것으로 분석되었다.

• 한국정보시스템학회지:정보시스템연구
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• 제26권3호
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• pp.187-209
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• 2017

Purpose The sharing economy is the most important keyword that is changing the paradigm of the world economy and management, and it was selected as one of 10 ideas to change the world in 2011 in Time magazine. The purpose of this study is to verify the structural relationship between perceived value and risk, network effect, usefulness, trust, and intention to use of accommodation service. In addition, the effects of utility and trust, and the experience of using accommodation service are controlled by the effect of empirical value and reciprocal value among the perceived value of sharing economic service, The purpose of this study is to propose a plan to activate the accommodation sharing service. Design/methodology/approach This study was designed to investigate the structural relationship between perceived value, perceived risk, network effect, usefulness, trust, and intention to use. Empirical analysis was done using SPSS 21.0 and AMOS 21.0 Findings Based on the results of this study, the following conclusions can be drawn. First, it was concluded that the higher the economic value of the accommodation sharing service is, the more useful and reliable the service is. Second, the higher the experiential value of the accommodation sharing service is, the higher the usefulness and reliability of the service are. Third, it was concluded that the higher the value of the mutual benefit of the accommodation sharing service is, the higher the trust level of the service is, but not the usefulness of the service. Fourth, it was concluded that the higher the perceived risk of accommodation sharing service is, the lower the service trust level is, but the service usability is not affected. Fifth, it was concluded that the larger the network effect of the accommodation sharing service is, the more useful the service is, but it does not affect the reliability of the service. Sixth, it was concluded that the higher the overall reliability of the accommodation sharing service is, the higher the usefulness of the service is. Seventh, it was concluded that the higher the overall usefulness and reliability of the accommodation sharing service are, the higher the intention to use the sharing service is. Finally, in order to test the effect of the experience on the use of trust and usefulness of the accommodation sharing service, multiple group analysis was conducted to examine the relationship between trust and usefulness, It is shown that there is a moderating effect in the path.

• 펄프종이기술
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• 제48권1호
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• pp.67-74
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• 2016

The demand of environmental friendly packaging materials such as pulp mold has been increased. The application of the oil palm biomass, EFB (Empty Fruit Bunch) fiber as natural raw materials to the pulp mold could increase the usability of the pulp mold by the reduced production cost brought from the relatively low cost of EFB. The effects of the EFB(Empty Fruit Bunch) fibers on the properties of pulp mold and on the process efficiency were evaluated in this study. The pulp mold samples were prepared with mixture ONP (Old news paper) and EFB by using laboratory wet pulp molder. The changes in the drying efficiency were measured with the changes in the solid contents of pulp mold samples during drying process. The efficiency of the surface coating treatment on the pulp mold depending on the condition of the pulp mold samples were also evaluated in order to improve the water resistance properties of pulp mold. The addition of EFB increased the drying efficiency by providing the bulkier structure and the higher water contact angle, which indicated the better water resistance properties. The water resistance were improved by the surface coating treatments and the application of surface coating on the pulp mold at the higher moisture contents resulted in the higher improvement in the water resistance. The bulkier structure originated from the application of EFB fiber reduced the effects of the surface coating, which could be overcome by the control of surface coating process.

• 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.

• 한국식품영양학회지
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• 제36권6호
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• pp.526-534
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• 2023

To improve usability of super sweet corn, extracts were prepared with hydrolytic enzyme and changes in physicochemical and antioxidant properties were analyzed. Soluble solids and reducing sugars contents were higher in all enzyme treatment groups than in the control. When enzyme treatment time increased, contents of soluble solids and reducing sugars were also increased. There was no significant difference in lightness between treatment groups, with redness showing the highest value in the control and yellowness showing the highest value in the invertase treatment group. Free sugar content in the control was the lowest. However free sugar content in the enzyme combination treatment group was increased by more than four times compared to that in the control. Contents of ascorbic acid, flavonoids and polyphenols were higher in the enzyme treatment group than in the control. In particular, the enzyme combination treatment group showed the highest content. DPPH and ABTS radical scavenging abilities were significantly higher in all enzyme treatment groups than in the control. Radical scavenging abilities of cellulase treatment group and enzyme combination treatment group showed high activity. The activity increased when enzyme treatment time increased. The combined enzyme treatment method for super sweet corn was suitable for food processing.

• 한국조경학회지
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• 제40권3호
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• pp.42-50
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• 2012

도시광장은 시민들의 일상생활에 밀접한 영향을 줄 수 있는 도시의 대표적인 공공 오픈 스페이스 중의 하나이다. 대부분의 도시광장은 도시의 중심부에 위치하고 있으며, 도시민의 커뮤니티를 형성하고 여가 문화 활동, 오픈 마켓, 정치적 집회 등과 같은 다양한 활동을 할 수 있는 공간으로 이용된다. 최근 우리나라에 공공 오픈 스페이스로 조성된 도시광장은 도시민들의 요구에 의한 중심 대 광장 유형의 광장으로 볼 수 있으며, 여러 가지 특징을 갖고 다양한 기능을 수행할 수 있는 공간으로 조성되었다. 본 연구에서는 서울 시내에 중심 대 광장의 유형으로 보여지는 광화문 광장, 서울 광장, 청계 광장을 연구 대상지로 선정하고, 광장의 구성요소 및 특성에 대한 만족도를 측정하여 분석하고, 공간 이용 만족도를 조사하여 구성요소 및 특성에 대한 만족도와의 관계성을 파악하고자 한다. 각각의 광장에서 수집한 설문조사 결과는 빈도분석, 요인분석, 일원배 치분산분석, 상관관계분석, 회귀분석 등을 이용하여 분석하였다. 연구 결과를 요약하면, 첫째, 도시광장 구성요소 및 특성에 대한 만족도를 요인분석한 결과, 구성요소, 이용성, 쾌적성/안전성, 공간특성 요인으로 구분되었다. 이용성 요인에 대한 만족도가 다른 요인에 비해 높은 것으로 나타나, 연구 대상지가 오픈 스페이스의 역할을 수행하고 있음을 확인할 수 있었다. 둘째, 광장의 이용 만족도는 전반적으로 높으며, 특히, 다양한 구성요소가 조성되어 있는 광화문 광장의 만족도가 높은 것으로 나타났다. 마지막으로, 도시광장의 공간 이용에 대한 만족도는 이용성 요인에 대한 만족도에 가장 큰 영향을 받으며, 나머지 요인들과도 통계적으로 유의한 관계있다는 것을 알 수 있었다. 본 연구의 결과는 도시광장의 계획 및 이용에 관한 만족사항을 반영하여, 도시 오픈 스페이스의 역할을 하는 도시광장의 발전방향을 제시하는 데 일조할 것이라 기대된다.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 1부
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• pp.510-516
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• 2008

In ubiquitous environment, there are no limits to utilize networks whenever and wherever you are. That pervasive networks are combined with the information devices and then create various services such as car navigation of LBS(location based service) and DMB(Digital Multimedia Broadcasting). As these kinds of services are getting more various, the complexity is also getting higher and ultimately the convergence will make people feel frustrated. One of the solutions is Context-Awareness[1] technology. User interface with context-awareness filters unnecessary information and prevents users from being blocked due to the massive information. In this paper, we describe the seamless service system based on location-awareness, which is a type of context-awareness. We developed the system based on UPnP AV Framework. This system provides the automatic terminal device selection for the nomadic user. The system establishes new connections for the ongoing streaming playback session with the new AV devices without substantial loss of playback so that the user can enjoy the seamless service. The AV device selection based on the user's location needs no user's intervention or notification so it achieves the improvement of usability and complexity.