• 디자인학연구
• /
• 제11권3호
• /
• pp.199-206
• /
• 1998

색체이미지의 가치평가를 위한 객관적이고 구체적이며 우리나라 실정을 반영할 수 있는 평가척도의 개발은 색채기획의 중요성과 함께 시급한 문제임에도 아직 활발한 색체기획의 중요성과 함께 시급한 문제임에도 아직 활발한 연구가 이루어지지않고 있다. 따라서 본연구는 색채이미지의 척도 개발을 위한 기초연구로서 선행된 연구들을 수집하여 색채이미지의 개념 및 연구경향과 연구방법론에 대해서 연구대상 및 표집, 자극도구 및 분석방법, 평가척도의 측면에서 종합적으로 분석하였다. 의류상품의 색채기획을 위하여 색채 이미지에 대한 다양한 주제의 연구와 연구대상 선정을 여러계층으로 확대시켜 볼 필요가 있다. 연구내용에 따라 자극도구의 신중한 작성과 적절한 분석방법의 선택이 요구되며, 분석방법은 주로 이미지의 인자를 추출하는 요인분석이 사용되었다.

• 한국연소학회지
• /
• 제15권3호
• /
• pp.57-66
• /
• 2010

The purpose of this paper is to investigate the effects of fuel injection strategy and engine load on the structure and emissions characteristics of a DI diesel engine with 1.6L of piston displacement. In order to analyze the particulate matter (PM) and exhaust emissions characteristics in a direct injection diesel engine, the quantity of PM and exhaust emissions (including HC, CO and $NO_X$) were investigated under various injection strategies and engine loads. Two different injection strategies (one pilot/main injection and two pilots/main injection) was investigated under the various engine loads. A thermophoretic sampling method with a scanning electron microscope (SEM) were used to obtain the PM morphology (including primary particles, the size of the agglomerates, the number of agglomerates, the fractal dimension). The quantity of soot gradually increased with increasing engine load at both injection strategies. The primary particles in the PM agglomerates indicate that the average of the primary particle and radius of gyration increased as the engine load increased.

• 수산해양교육연구
• /
• 제25권2호
• /
• pp.458-477
• /
• 2013

The purpose of this research is to define the problems of the Fisheries Census of Korea and to make better policies for improvement. In order to complete the purpose, the research team has firstly conducted a survey in the six regions to reinvestigate the yes or no for accuracy of the primary data related to the Fisheries Census. Moreover, the team has defined the problems of the Fisheries Census through conducting a survey for the experts and users of the fisheries statistics. Also, the team has derived the short/long term improvement of Fisheries Census through out this survey. This study has proposed that the name of census should be changed from the Fisheries Census to the Fishing Industry Census, the owners of distribution & processing companies, and their employees should be included in order to figure out the total size of the fishing industry and to plan right policies. In addition, the right information can evaluate the long-term planning for the fishing industry. The proposals from this study require a lot of changes on the Fisheries Census; so, it is impossible to adopt the proposals right from the Fisheries Census of 2015. Therefore, the changes should be adopted from the next Fisheries Census.

• 한국초등과학교육학회지:초등과학교육
• /
• 제33권2호
• /
• pp.258-272
• /
• 2014

The purpose of this study is to investigate the perception on sedimentary rock in elementary science 'Earth and Space' domain for elementary school students. For this purpose, questionnaires on the sedimentary rock perception were developed. And the sedimentary rock perception was examined for random sampling of 5th and 6th grade 656 students. As a result, students chosen incorrect answers of the average 53.8% for questions of sedimentary rock perception. Over the average rate of incorrect answers in 18 questions were 10 questions (3 in the creation of sedimentary rock, 5 in the classification of sedimentary rock, 2 in the sedimentary layer). When the results were stratified by residence, grade and gender, there were significant differences in 8 questions between students in urban and rural areas, in 6 questions between 5th and 6th grade students, and in 3 questions between male and female students. The study that understanding of elementary students for sedimentary rock can be provided for form the master planning the teaching strategy to student's scientific concepts in elementary school. The results are also contributed to find an effective ways for modify misconceptions of sedimentary rock to the scientific concepts.

• 한국초등과학교육학회지:초등과학교육
• /
• 제32권4호
• /
• pp.503-514
• /
• 2013

The purpose of this study is to investigate the perception on fossil in elementary science 'Earth and Space' domain for elementary school students. For this purpose, the fossil perception inventory was developed. And the fossil perception was examined for random sampling of 5th and 6th grade 635 students. As a result, students chosen incorrect answer of the average 30.8% for questions of fossil perception. Over the average rate of incorrect answers in 20 questions were 8 questions(3 in the definitions for fossil, 2 in the creation of fossil, 2 in the fossil, sedimentary, stratum, 1 in the understanding for fossil). When the results were analyzed by residence and grade, there were significant differences in 7 questions between students in urban and rural areas, and between 5th and 6th students, there were important contrasts in 4 questions. The data that understanding of elementary students fossil can be provided for form the basis planning the teaching method to correct student's scientific concepts in elementary school. The results are also contributed to find an effective way for modify misconceptions of fossils to the scientific concepts.

• 한국간호교육학회지
• /
• 제9권2호
• /
• pp.199-211
• /
• 2003

Purpose: The purpose of this study was to review and summarize the trend of nursing research on image of nurses performed in Korea and to get the preliminary data for future research. Method: This study queried 18 Korean studies performed from 1990 to 2002, selected by two online databases surfing. The studies were analyzed in terms of several standards Lee, Myung Ha(1996) suggested in her study. Result: (1) The first study on image of nursing performed at 1992. (2) 33.4% of the studies included in this analysis were performed for a thesis for a degree, 61.2% hired non-experimental research design, and only 5.6% selected study sample by simple random sampling. (3) Almost studies used the research instruments developed by Korean nursing scientist and collected research data with questionnaires. (4) The variety variables were analyzed to identify the relationship between image of nurses and the variables. (5) 88.9% of the studies included in this analysis included the suggestions for future study. Conclusion: The research findings were summarized and strategic planning for future study on image of nurses were discussed.

• 한국보건간호학회지
• /
• 제27권3호
• /
• pp.551-563
• /
• 2013

Purpose: This study was conducted in order to investigate the incidence and associated factors of suicidal ideation among the elderly according to residence area. Methods: This cross-sectional study used secondary data from the 2011 Korean National Health and Nutrition Examination Survey (KNHANES V-2). A representative sample of 1,464 men and women aged 65 and over was selected. Rao-scott $X^2$-test, multiple logistic regression models based on sampling scheme of the data were used. Results: Of the 1,464 respondents, 22.4% had experienced suicidal ideation during the past year. Higher incidence of suicidal ideation was observed in rural seniors (23.7%) than in urban seniors (21.1%). The incidence of suicidal ideation showed correlation with age, education level, depression, stress, lying in a sick bed, and current smoking status among elderly living in urban areas. However, among elderly living in rural areas, the incidence of suicidal ideation showed correlation with household income, depression, stress, and daily activity. Conclusion: Based on the results, nurses should manage effective and individualized nursing interventions for elders in planning suicide prevention programs with consideration for residence areas, because there were differences in the factors affecting suicidal ideation among elders according to residence area.

• 보건교육건강증진학회지
• /
• 제33권5호
• /
• pp.107-119
• /
• 2016

Objectives: This study aims at examining the association of sense of community with community participation for health promotion in urban areas of Korea. Methods: We analyzed data from 'Community Capacity for Healthy Gangdong Communites' Survey' in 2007. The survey was based on self-reported questionnaires, which were distributed to 1,800 community residents over the age of nineteen in five administrative communities of Gangdong-gu, Seoul, in Korea by using proportionate probability sampling method. We measured 'Sense of community' with four indicators including 'Good neighborhoods', 'Perceived possibility of cooperation', 'Pride of community' and 'Possibility of development' by using 5-point Likert scales. Community participation was measured with the experience rate or the extent of participation by 5-point Likert scales in seven community actions or activities including voting, community program planning, social actions, etc. We examined the association of sense of community with community participation by using regression analyses. Results: This study has shown that sense of community was associated with and made positive impacts on community participation in diverse community actions or activities in urban communities. Conclusions: For promoting community health in urban areas, we can increase community participation more effectively with the efforts of enhancing sense of community.

• Journal of Advanced Marine Engineering and Technology
• /
• 제38권10호
• /
• pp.1303-1309
• /
• 2014

In this paper, we present an iterative learning control (ILC) framework for tracking problems with predefined data points that are desired points at certain time instants. To design ILC systems for such problems, a new ILC scheme is proposed to produce output curves that pass close to the desired points. Unlike traditional ILC approaches, an algorithm will be developed in which the control signals are generated by solving an optimal ILC problem with respect to the desired sampling points. In another word, it is a direct approach for the multiple points tracking ILC control problem where we do not need to divide the tracking problem into two steps separately as trajectory planning and ILC controller.The strength of the proposed formulation is the methodology to obtain a control signal through learning law only considering the given data points and dynamic system, instead of following the direction of tracking a prior identified trajectory. The key advantage of the proposed approach is to significantly reduce the computational cost. Finally, simulation results will be introduced to confirm the effectiveness of proposed scheme.

• 한국시뮬레이션학회논문지
• /
• 제20권3호
• /
• pp.49-58
• /
• 2011

설비나 작업자에 대한 부하효율은 제조공장에서 생산용량계획을 수립하는데 중요한 정보다. 즉 공장에서 신제품을 개발하거나, 생산량을 증가시킬 경우, 새로운 투자계획을 수립할 경우에도 항상 설비나 작업자에 대한 부하효율을 검토한다. 이러한 부하효율을 추정하기 위해서 다양한 측정방법이 사용된다. 본 본문에서는 설문조사, 순간관측법, 동영상 촬영을 이용한 미세동작연구방법, ERP시스템에서 자료를 취득하는 방법, 시뮬레이션방법 등 다양한 측정방법의 정확성에 대해 실제 사례를 이용해 비교분석하였다. 본 사례연구는 리드프레임이나 패키징용 부품을 생산하는 국내 반도체부품 생산공장을 대상으로 수행하였다.