• 아동학회지
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• 제2권
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• pp.67-82
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• 1981

The present study was intended to investigate ecological characteristics of poverty areas in Seoul from the perspectives of children's development. More specifically, the objectives of the study are to examine environmental ecology of the poverty areas and it's potential psycho-social development of children. Three poverty areas and 150 children currently living in the are as were sampled ; 70 children from middle class families and 88 from lower class respectively. Focal ecological aspects surveyed family environment, outdoor play ground and facilities, and village housing structures. Psycho-social dimension's development dealt with in the study included children's perceptions of parental child rearing practices and role taking, and children's future perception and perspectives. Data were collected through interviews and observations using structured formats. Following results were obtained from the data : 1. Children from the poverty families showed a higher tendency to have working mothers than those from middle class. 2. The rate of having single room is higher for children from middle class by two times than from lower class. 3. Children from lower class tended to have less favorable perceptions of attitudes tote and their own families than those from middle class. 4. The likelihood of showing discrepancy in vocational choice for children between parents and children is higher for children from lower class and those from middle class. 5. Children from lower class tended to allot more time in playing with peers than those from middle class. 6. The size of outdoor play ground are inadequately poor both for middle and lower class children. The inadequateness is particularly severe for the lower class children, showing that the size and facilities of playing ground available for the child from lower class is less than half compared with those of the children from middle class.

• 컴퓨터교육학회논문지
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• 제22권3호
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• pp.123-133
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• 2019

본 연구는 스마트교육의 한 요소인 스마트 기기를 활용하여 축적된 데이터를 기초로 유아의 개별 맞춤학습을 위한 스마트교육환경을 구축하는데 목적을 두고 있다. 이를 위해 유치원 만5세 학급에서 자유선택활동 운영을 위한 개선 방안을 제안하고, 유아 스스로 놀이 계획을 세우고 평가하는 자유선택활동 운영시스템을 구현하였다. 본 연구 참여한 유아들은 놀이계획, 놀이수행 및 수행평가등 전체 활동시간을 스스로가 적극적이며 즐겁게 참여하였다. 그 결과 유아는 스마트기기를 통한 자신의 흥미영역에 대한 활동선택에 기존교육환경보다 적극적으로 참여하는 것을 확인할 수 있었다. 본 연구에서 제안된 자유선택활동 운영시스템을 이용한 교사는 분석된 자료를 활용하여 스마트기기를 이용한 개별유아의 흥미분야와 학습수준 및 교실의 각 영역별 이용형태를 혼자서 쉽게 파악할 수 있었다.

• 한국컴퓨터그래픽스학회논문지
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• 제13권4호
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• pp.13-19
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• 2007

최근 의료기술의 발전으로 노인의 인구는 범세계적으로 매우 빠른 속도로 증가하고 있다. 이에 따라 그들의 건강과 여가생활을 위한 컴퓨터 게임을 개발할 필요성이 증가되고 있다. 노인들에게는 이미 그들에게 친숙한 전통놀이를 게임화 하는 것이 다른 일반적인 컴퓨터 게임들 보다 더 자연스럽고 친숙하여 접근이 용이할 것이다. 만약 노인들이 컴퓨터 게임에 보다 쉽게 접근하여, 그들의 여가를 즐길 수 있게 되면, 여가 활동을 통한 노화 지연 및 질병 예방 등의 효과가 있을 것으로 기대된다. 그러나 마우스와 키보드를 주로 사용하는 오늘날의 컴퓨터 인터페이스는 노인들이 사용하기에는 복잡하고 어렵다. 본 연구에서는 테이블탑 인터페이스(TableTop Interface)인 유테이블을 이용하여 노인들이 쉽게 즐길 수 있는 전통놀이 게임을 개발하고자 한다. 노인들이 유테이블 위에서 직관적이고 쉬운 동작으로 즐겁고 재미있게 게임을 할 수 있는 환경을 제공하는 것이다. 본 논문에서는 노인용 게임을 개발하고 적용시켜 봄으로써 게임의 타당성을 검증하도록 하겠다.

• 한국환경생태학회지
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• 제30권3호
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• pp.423-433
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• 2016

본 연구는 치유의 숲에서 다른 유형의 소리(무음, 자연, 음악, 아이들 노는 소리)가 방문객의 기분상태(Profile of Mood States: POMS)에 미치는 영향을 비교하였다. 자료는 2012년 10월 중 장성 '축령산편백치유의 숲' 내에 위치한 '치유필드'를 이용하는 231명의 방문객으로부터 수집되었다. 각 피실험자는 각기 다른 유형의 소리에 노출되었으며 실험용 소리가 장착된 헤드셋을 착용한 상태에서 설문에 답변하였다. 실험결과, 기대했던 대로 '아이들 노는 소리' 노출 그룹이 타 그룹에 비해 높은 부정적 기분상태를 나타냈다. 그러나 예측과 달리 자연소리와 음악소리는 피실험자의 POMS에 영향을 미치지 않았다. 이러한 경향은 총 기분장애 점수(Total Mood Disturbance Score: TMDS)뿐만 아니라 요인별(불안, 분노, 활력, 피로, 혼란, 우울) POMS에서도 동일하게 나타났다. 또한 혼잡지각(Perceived Crowding)수준과 TMDS(r=0.568) 및 하위 요인별 기분상태(r=0.331-0.571)간에 정적 상관관계가 있었다. 연구의 결과에 대한 토의와 더불어 관리적 차원에서 연구결과에 대한 시사점을 제시하였다.

• 대한지역사회영양학회지
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• 제9권6호
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• pp.706-715
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• 2004

The objective of this study was to compare early child care center teachers' attitudes for meal and snack guidance between Sweden and Korea. Participants were 251 early child care center teachers (Sweden: 134, Korea: 117) working in Goetebory, Sweden, and Seoul, Korea. The survey was conducted from December in 2003 to February in 2004. SPSS programme was used for statistical analysis. Sixty five point eight percent of the Korean early child care center teachers provided a certain amount of foods for children. But $20.9\%$ of Swedish provided a certain amount of foods for children, $79.1\%$ of them provided the amount a child wanted. Sixty one point seven percent of Korean teachers allowed a child leave foods on the plate, but $95.5\%$ of Swedish teachers asked a child eat all food on the plate. When a child didn't want to eat, $61.1\%$ of the Korean teachers fed him/her, but $11.0\%$ of the Swedish teachers did. Only $42.4\%$ of the Swedish teachers allowed a children eat sweets, but $92.9\%$ of Korean did. The Swedish teachers' perception for food guidance were eating by child himself/herself > washing hands before eating > having appropriate table manner > eating as talking with friends > not playing during the meal time, while the Korean teachers' was taking various food > having appropriate table manner > eating by child himself/herself, not playing during the meal time > washing hands before eating. The Swedish teachers thought 'eating as talking with friends' and 'eating by child himself/herself' is important, where as the Korean's did 'eating without making noise', 'not playing during the mealtime' in the eating behavior. For 'brushing teeth after meal' the Swedish teachers' score (1.5) was lower than the Korean (4.2). The results is necessary to improve meal and snack guidance for Korean early child care center teachers' education.

• 한국대기환경학회지
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• 제5권2호
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• pp.1-11
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• 1989

Sandy dust phenomena was observed from April 19 to 23, 1988 in Seoul. During this period it rained and the precipitation was collected to investigate the rain chemistry. This study was carried out to analyzed the chemical composition of precipitation by the measurements of conditivity, cations $(H^+, NH_4^+, K^+, Na^+, Ca^{2+}, MG^{2+})$, and anions $(SO_4^{2-}, NO_3^-, Cl^-, F^-, Br^-)$ which are believed to be the major ions playing an important role in the acidity of rain water. During the period of sandy dust phenomena the range of pH value and conductivity concentration of rainwater were 6.0-6.7, 172-254 $\mu \mho/cm$. The anions and cations concentrations increased and the orders of these concentrations were $SO_4^{2-} > Cl^- > NO_3^- > Na^+ > Ca^{2+} > NH_4^+ > Mg^{2+}$. THe principal chemical compounds of rainwater were estimated at $(NH_4)_2 SO_4, CaSO_4, NaCl, and MgCl_2$.

• 대한가정학회지
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• 제44권4호
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• pp.159-173
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• 2006

The purpose of this study was to investigate the seating style of children between Korea and USA viewed from activity analysis in child-care centers. Observation and depth-interview method were used for data collection. Ninety-eight children aged from 38 to almost 62 months were observed for five minutes three times during an indoor free play period in Korea and USA in 2003 and 2004. The results of the research were as follows. There were significant differences between the postures of Korean and American children. Korean children maintained floor-seating postures longer than chair-seating and standing postures. The factors such as sex, age and physical environment influenced the children's seating style, while playing-type influenced their posture. This study will contribute to our understanding of the physical environment and children's seating style according to culture.

• 한국토양비료학회지
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• 제48권2호
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• pp.119-124
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• 2015

Pyoverdines (PVDs) are organic compounds produced by the fluorescent Pseudomonads under iron starvation conditions. Among the isolated rhizosphere pseudomonads strains, P. putida KNUK9 showed the highest production of PVDs and its production reached to 62.81% siderophores units. DNA isolation, ligation, PCR amplification, and transformation using E. coli $DH5{\alpha}$ cells were carried out for preparing the strong pyoverdine producer strains. We detected seven genes playing the fundamental roles in the pyoverdine metabolism in Pseudomonads. According to data and analysis obtained from the study, we deduced that the strain P. putida KNUK9 contains the essential genes required for pyoverdine biosynthesis.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 추계학술대회
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• pp.55-57
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• 2018

In Simultaneous Localization and Mapping (SLAM), the robot acquire its map of environment while simultaneously localize itself relative to the map. Now a day, a map acquired by the mobile robots limit to specific area, in an indoor environment and cannot able to navigate autonomous between different floors. We propose a design that could able to overcome this issue in order to navigate multiple floors with one end goal mission to a target destination in the course of autonomous navigation. In this research, we consider all the floors have identical structural arrangement. Internet of Things (IoT) playing crucial role in bridging between "things" and Robot Operating System (ROS) enabled mobile robots.

• 한국항공운항학회지
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• 제6권1호
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• pp.71-98
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• 1998

The study proved the fitness between competitive strategy and service operation strategy of service companies. The competitive strategy of a corporation is a major strategy playing the role of bridge linking both corporate strategy and functional strategy. And it is a choice of method how to win competitors in given area. There have been such a specific methodologies for acquiring competitive advantage as Porters competitive strategy, Miles and Snows adaptive strategy, and Life cycle strategy. But, many scholars have pointed that its more important for high corporate performance to determine the competitive strategy of a corporation fitting the external environment and internal structure. So its needed for successful cost-leadership or differentiation strategy to differentiate organizational function, resources, and various organizational factors. But there have been no methodologies or practical guidelines fitting competitive strategy, corporate structure, and external environment in sprite do service corporations growth. So, the study proved the fitness between competitive strategy and service operation structure in Airlines after selecting service structural elements necessary for strategic management.