• Proceedings of the Technology Innovation Conference
• /
• 2006.02a
• /
• pp.264-297
• /
• 2006

In this paper, we attempt to analyze consumer preference for the alternative-fuel vehicles based on data from a stated preference using the conjoint analysis. Five possible fuel types (gasoline, diesel, CNG, LPG, Hybrid (electricity+gasoline)) are covered in conjoint cards. To estimate and analyze consumer preference, discrete choice model is used. Specifically, Bayesian mixed logit model is used. Based on estimating results, we discuss the business strategy and policy for the alternative fuel vehicle.

• Journal of Korean Society of Rural Planning
• /
• v.28 no.4
• /
• pp.127-138
• /
• 2022

In responding to climate change in the agricultural sector, Climate Smart Agriculture (CSA) is an approach to establish a sustainable agricultural system through comprehensive management of technology, policy, and investment. The international community is continually expanding CSA implementation, and it became more important to understand the status of the domestic agriculture system and practices that are relevant to CSA. This study explored the available CSA in domestic agricultural systems and presented the order of relative importance of CSA technology. AHP analysis is employed for the evaluation with the following criteria: productivity, marketability, adaptability, and mitigation. The relative importance is evaluated with six agricultural technologies (soil, crop management, water, energy efficiency, alternative energy, and precision agriculture) in 28 agricultural technology sectors. The results of the AHP analysis showed that 'alternative energy' was found to be a top priority among the agricultural technology sectors, and 'shallow depth drain in rice paddy' was a top priority for agricultural technology. Also, the 'marketability' in soil and water sectors, 'mitigation' in crop management, and 'adaptability' in energy efficiency and alternative energy were given higher priority. The results of this study can be used as a good source for strategic CSA preparation and application.

• Korean Journal of Agricultural Science
• /
• v.40 no.2
• /
• pp.169-176
• /
• 2013

The price and revenue of rice are expected to decrease due to increasing rice imports, decreasing consumption and the discontinuance of the government's rice procurement. This degenerating profitability is leading to a rise in the cultivation of upland-crops such as beans, fodder crops and fruits in paddy fields. However, there is a lack of research on the selection of rice substitute crops which are adaptable to the relevant region through profitability analysis. This research, therefore, analyzed investment profitability of rice substitute crops for Cheorwon-gun area in Kangwon province. The study applied net present value (NPV) and internal rate of return (IRR), which fit for mutually exclusive investments that make one selection to the exclusion of other crops. Target crops are green house plants in Cheorwon-gun area. Financial analysis showed paprika and cucumber have investment feasibility for automated vinyl greenhouses and conventional plastic greenhouses respectively.

• Human Ecology Research
• /
• v.54 no.4
• /
• pp.365-384
• /
• 2016

The purpose of this research is to apprehend what the power of professional learning community (PLC) to make home economics teachers participate is and how PLC activity contributes to reflective practice and change of participating home economics teachers by experiencing reflective practices. For this, self-reflective action research of Kemmis and McTaggart was conducted. Six home economics teachers participated voluntarily and totally 18 PLC sessions from May 31, 2013 to May 19, 2014 were held. Two themes of 'looking in classes' as a main practice theme and 'designing classes together' as a supporting theme were carried. Findings and conclusions of this study are as following. First, participants of PLC to get data and information on teaching and to solve problems with fellow teachers for better classes at first. However, they have become to comfort and sympathize each other about difficulties in school as home economics teachers. Second, through the PLC activity, they found they had uncomfortable belief about teaching and tried to practice solutions by critical and reflective thinking. Third, they put efforts in finding alternative framework of looking inside their classes for the fundamental improvement in teaching. For this, they formulated questionnaire to describe their own reflective practice through the alternative framework from a critical perspective in teaching, a view of student's learning, and a teacher's inner view for improvement of practice. Fourth, PLC activity for a year allowed them to combine theory and reality though reflective process by designing classes together and reflectively practicing them in classes.

• Journal of the Korean Home Economics Association
• /
• v.35 no.4
• /
• pp.31-46
• /
• 1997

The controversy between Lewis and Spanier's theory and Thomas and kleber's theory on marital satisfaction and marital stability was tested empirically. The results show that while marital satisfaction was the best predictor for marital stability the impact of alternative attractions and external pressures to remaim married was more complicated than both theories predicted depending on the nature of alternative attractions. Thomas and Kleber's theory was supported in most of groups Contrary to Lewis and Spanier's theory alternative atteractions did not negatively affect marital stability of marriages of high qulity. Contrary to both theories external pressures to remain married was not an important predictor of marital stability . In some cases high external pressures to remain married even lowered marital stability. The validity of both theories are discussed.

• Journal of Korean Home Economics Education Association
• /
• v.20 no.1
• /
• pp.137-152
• /
• 2008

This study examined the organization and operation of home economics curriculum of specialized middle school in the form of regular school among alternative schools and analyzed the perceptions of teachers and students about home economics class. Interviews were conducted with teachers of 6 specialized schools in order to determine the operations and teachers' perceptions of home economics education. Students' perceptions for home economics class were gathered through surveys with students from the 3 (of the original 6) schools that authorized the questionnaire survey. The final analysis utilized 205 student responses. Survey data were analyzed using the SPSS program. The results of the research were as follows: First, home economics education within specialized middle schools was mostly conducted according to the form of the technology-home economics curriculum, which is the national common basic curriculum. Compared to the 7th national curriculum, the class of technology-home economics curriculum in 4 schools occurred 1 hour less each week. Each school incorporated various specialized curricula related to home economics. Second, as for the operation of home economics education in specialized schools, most home economics classes were conducted by teachers who had majored (or minored) in home economics. Moreover, all but 1 school, which used self-made materials, used the national textbook and dealt with the entire content of the textbook. For teaching-learning methods and instructional media, various means were utilized. For evaluation methods, most schools based grades on paper-and-pencil tests(50-60%) and performance tests(40-50%). Third, among teachers' perceptions of home economics education, the meaning of home economics education was focused on practical help and the pursuit of home happiness; the purpose was to realize the happiness of students and their homes by applying these to actual living, and increase students' ability to see the world. In regards to difficulties in educational operations, most pointed out poor conditions of practice rooms. As for differences from general schools, most teachers mentioned the active communication with students. Fourth, through the home economics class, it was found that students perceived the goal of technology-home economics curricula as lower than average. Among students' perceptions about home economics class, most were negative. Perceptions about goal of technology-home economics curricula and home economics class also showed meaningful differences according to each school. Students of the school, which had more home economics class hours and specialized curricula related to home economics, perceived more positively. Also, students who were more satisfied with school and learned from a teacher who majored in home economics tended to perceive home economics class more positively.

• Journal of Korean Home Economics Education Association
• /
• v.10 no.1
• /
• pp.59-76
• /
• 1998

This study employs a case study method to examine the current implementation of student teaching program in a particular teacher education institution and its affiliated school. The purpose of this study is to improve the quality of home economics student teaching program by promoting collaboration of teacher education institution and host schools. Following five research problems are addressed : (1)Examining the problems of student teaching from the literature review ; (2)Identifying the problems of student teaching recognized by home economics student teachers ; (3)Identifying the problems of student teaching and plans for improvements suggested in the seminar held for home economics teacher ; (4)Analyzing and comparing the differences of opinion between home economics student teaching program ; and (5)Suggesting alternative implementation plans for improving student teaching program by promoting collaboration of teacher education institution and host schools.

• Journal of the Korean Home Economics Association
• /
• v.37 no.11
• /
• pp.85-95
• /
• 1999

The voluntary simplicity lifestyle can be the core concept of alternative lifestyle to solve so many problems which were produced by modern materialistic lifestyle. This study examined the meaning and the development in historical perspective of voluntary simplicity lifestyle and suggest the practical was how to live voluntary simplicity lifestyle actively. It’s implication on the modem consumer culture and the research or education of home economics was also discussed.

• Nuclear industry
• /
• v.5 no.6 s.28
• /
• pp.14-17
• /
• 1985

• Kyungpook Mathematical Journal
• /
• v.21 no.2
• /
• pp.299-302
• /
• 1981