• East Asian Economic Review
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• 제21권3호
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• pp.259-274
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• 2017

This study estimates the random utility function of fluid milk using 1,165 survey responses in Laos. It finds that both products' attributes and individual characteristics affect consumers' preference for the milk and the hypothetical brand of Laos-Korea has a potential compared to four real dairy products. Results also show that calories have a positive relationship with consumer's preference while the price and fat content have a negative one. The decision for choosing each brand is significantly affected by individual characteristics such as gender, age, whether or not respondents live with their children, the level of education, income, the frequency of purchasing milk per week, and the region where they live. The preference for five brands appears in the order of Foremost, Nabong, Thai-Danish, Meiji, and Lao-Korea, and probabilities of purchasing each brand at the mean level are 30.9%, 17.48%, 21.48%, 15.0% and 10.39%, respectively. Nabong that was Lao national milk brand still has a significant market power even though it was closed in 2008. The policies to promote milk industry by implementing its national milk brand again would be more effective if it focuses on the young generation, female consumers, families with children, quality of dairy products, and Vientiane capital areas.

• 가정과삶의질연구
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• 제26권5호
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• pp.61-74
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• 2008

This research aims to examine and analyze behavior of consumers in pursuit of safety the basis of data Korea Consumer Agency in 2007 2,000 male and females older than 20 years old in Korea. In particular, this study investigates the impact of and life styles of consumers in pursuit of safety. Results of this research could be summarized as follows. First of all, Korean consumers tend to place emphasis on factors such as price and freshness rather than safety in the purchase of vegetables, meats, rice, and fruit.Second, the safety consciousness of consumers is high among female young consumers among consumers showing intermediate positions for the issue of opening domestic markets for foreign agricultural products. Third, this study also examines the impact of life styles on consumers' behavior in pursuit of safety. Such behavior is high among consumers emphasizing values on family and current consumption and showing negative attitudes opening domestic markets for imported foreign agricultural products. Finally, behavior in pursuit of safety is high among female, high school graduated, family-oriented consumers and valuing leisure and showing negative attitudes opening domestic markets for foreign agricultural products. However, safety consciousness of consumers do not generate direct impact on patterns of pursuing safety.

• 대한간호학회지
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• 제29권3호
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• pp.494-506
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• 1999

The purpose of this study is to understand the structure of mothers of mentally handicapped daughters' lived experience, to apprehend the connectedness of the structure of the experience with concept of Parse's human becoming theory, and to provide a foundation for nursing research and education. Data collection was conducted from October 1995 to April 1996. Research participants were eight mothers of mentally handicapped daughters whose ages ranged from 12 to 18 attending special schools located in either Inchon or Seoul. The researcher had interviews with them over their lived experience conducted tape recorded, and made an analysis according to Parse's “human becoming research methodoloy.” The data were collected using the dialogical engagement process “I and You,” the participant researcher and the participant subject. The data were analyzed using the extraction-synthesis and heuristic interpretation. The structural integration is illustrated in the following : 1) Realizing the mother's role of mentally handicapped daughters and admitting situation. 2) Concealing a part of their relationship with others is interpreted as revealing-concealing. 3) Living a life kept moving between separating and connecting. 4) Their flight back voluntarily to improve the situation is interpreted as powering. The conceptual integration which emerged was the lived experience of mothers is powering through the revealing-concealing and connecting-separating of valuing.

• 정보관리연구
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• 제33권4호
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• pp.107-128
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• 2002

이 연구는 R&D 투자에 대한 신속한 의사결정을 지원하고 R&D의 경제적 성과를 극대화시키기 위하여 R&D 기획 초기부터 기술의 경제적 수익에 대한 개념을 도입하고, 개발 완료된 R&D 기술의 상용화에 이르기까지 의사결정에 필요한 정보를 제공하는 시스템에 관한 것이다. 이 연구는 R&D 의사결정의 주요 경로를 파악하고, 단계별로 소요되는 정보에 대한 분석과 지식정보의 지원을 위하여 KISTI 과학기술 데이터 베이스 및 다른 공개용 정보원과의 원활한 연계 및 기술가치평가 정보 지원으로 구성되어 있다. 특히, 경제적 성과를 추정하기 위한 기술가치평가 정보 지원은 단계별 근거가 되는 지식정보를 지원하는 KISTI 기술가치평가 모델을 접목함으로써 좀더 객관적인 추정과 의사결정을 지원하도록 하였다.

• The Journal of Asian Finance, Economics and Business
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• 제9권5호
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• pp.409-419
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• 2022

This paper examines the post-IPO price volatility in the first trading days after the IPO of SOEs that carry out equitization, on a sample of 76 IPOs on the Hanoi Stock Exchange (Vietnam) in the period 2013-2018. Oversubscription rate, firm size, issuance size, internal equity ownership, and listing delay are all factors that influence IPO price volatility in a primitive stock market. The results showed that the average initial market-adjusted return for the first three trading days was -11.95%; -9.58% and -7.29% and the level of price volatility is related to the rate of oversubscription and company size. Issuance price, issuance size, internal equity holdings, and listing delay do not seem to contribute significantly to post-IPO share prices. Individual investors based their valuation on information released during and after the IPO. In general, the number of IPOs that yield positive and negative returns in the first trading days is about the same, indicating that the two phenomena of undervaluation and overvaluation still occur in the process of valuing shares of Vietnamese SOEs for IPOs.

• Steel and Composite Structures
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• 제44권2호
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• pp.155-169
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• 2022

In the present paper an analytical model was developed to study the non-linear vibrations of Functionally Graded Carbon Nanotube (FG-CNT) reinforced doubly-curved shallow shells using the Multiple Scales Method (MSM). The nonlinear partial differential equations of motion are based on the FGM shallow shell hypothesis, the non-linear geometric Von-Karman relationships, and the Galerkin method to reduce the partial differential equations associated with simply supported boundary conditions. The novelty of the present model is the simultaneous prediction of the natural frequencies and their mode shapes versus different curvatures (cylindrical, spherical, conical, and plate) and the different types of FG-CNTs. In addition to combining the vibration analysis with optimization algorithms based on the genetic algorithm, a design optimization methode was developed to maximize the natural frequencies. By considering the expression of the non-dimensional frequency as an objective optimization function, a genetic algorithm program was developed by valuing the mechanical properties, the geometric properties and the FG-CNT configuration of shallow double curvature shells. The results obtained show that the curvature, the volume fraction and the types of NTC distribution have considerable effects on the variation of the Dimensionless Fundamental Linear Frequency (DFLF). The frequency response of the shallow shells of the FG-CNTRC showed two types of nonlinear hardening and softening which are strongly influenced by the change in the fundamental vibration mode. In GA optimization, the mechanical properties and geometric properties in the transverse direction, the volume fraction, and types of distribution of CNTs have a considerable effect on the fundamental frequencies of shallow double-curvature shells. Where the difference between optimized and not optimized DFLF can reach 13.26%.

• 한국산림과학회지
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• 제103권3호
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• pp.453-461
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• 2014

산림치유에 대한 수요가 급증함에 따라 산림청뿐만 아니라 각 지자체에서 치유의 숲 조성을 활발하게 추진하고 있다. 막대한 예산이 투입되는 정책이니만큼 정책 추진의 타당성을 신중히 검토할 필요가 있다. 따라서 이 연구는 이용객 수가 급증하고 있는 장성 치유의 숲의 이용가치를 추정하는 것이 목적이다. 이를 위해 장성 치유의 숲 이용객 400명을 대상으로 설문조사를 실시하였으며, 이 가운데 불성실 응답지 9부를 제외한 391부를 분석에 사용하였다. 경제적 가치 추정은 1.5 양분선택형 CVM 방법을 적용하였다. 분석 결과, 장성 치유의 숲의 1인 1회 이용료에 대한 지불의사금액($WTP_{mean}$)은 35,010원, 연간 이용가치는 약 75억 원으로 추정되었다.

• 한국토양비료학회지
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• 제44권6호
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• pp.1286-1294
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• 2011

This paper reviews the future directions and perspectives on the soil environmental researches in the 21 century. Previously, the principal emphasis of soil environmental researches had put on the enhancement of food and fiber productions. Beside the basic function of soil, however, the societal needs on soil resources in the 21st century have demands for several environmental and social challenges, occurring regionally or globally. Typical global issues with which soil science should deal include food security with increasing agronomic production to meet the exploding world population growth, adaptation and mitigation of climate change, increase of the carbon sequestration, supply of the biomass and bioenergy, securing the water resource and quality, protection of environmental pollution, enhancing the biodiversity and ecosystem health, and developing the sustainable farming/cropping system that improve the use efficiency of water and agricultural resources. These challenges can be solved through the sustainable crop production intensification (SCPI) or plant welfare concept in which soil plays a key role in solving the abovementioned global issues. Through implementation of either concept, soil science can fulfill the goal of the modern agriculture which is the sustainable production of crops while maintaining or enhancing the ecosystem function, quality and health. Therefore, directions of the future soil environmental researches should lie on valuing soil as an ecosystem services, translating research across both temporal and spatial scales, sharing and using data already available for other purposes, incorporating existing and new technologies from other disciplines, collaborating across discipline, and translating soil research into information for stakeholders and end users. Through the outcomes of these approaches, soil can enhance the productivity from the same confined land, increase profitability, conserve natural resource, reduce the negative impact on environment, enhance human nutrition and health, and enhance natural capital and the flow of ecosystem services. Soil is the central dogma, final frontier and new engine for the era of sustainability development in the $21^{st}$ century and thus soil environmental researches should be carried according to this main theme.

• 여성건강간호학회지
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• 제22권4호
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• pp.221-232
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• 2016

Purpose: The purpose of this study was to examine the applicability of a flipped learning course in Women's Health Nursing for nursing students. Methods: A total of 200 senior nursing students participated in flipped learning class of pregnancy, delivery and postpartum area, which included team-based learning and self-reflection for 8 weeks. One group pre-post test design was adopted and the changes in learning motivation and satisfaction were examined. In addition, reflective journals of the students were analyzed by making a qualitative content analysis. Results: Students showed a significant increase in score of learning motivation in the posttest (t=-4.47, p<.001). They had a mean of 3.90 in learning satisfaction out of possible five points. As a result of content analysis, three themes were selected: 'Improved attitude toward active learning', 'Burden caused by excessive workload', and 'Valuing to the team-based activity' To be specific, six sub-themes were selected, with three positive and three negative categories: 'improved class attention and understanding', 'positive class participation by preparing lessons in advance', 'peer interactions through discussion', 'A lot of time and effort consuming', 'stress caused by the burden of preparing lessons', and 'difficulties in cooperative activities'. Conclusion: This study supports and confirms that the flipped learning can be a creative instructional model of positive teaching-learning strategy in clinical nursing courses to enhance students' learning motivation.

• 한국지역사회생활과학회지
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• 제17권4호
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• pp.175-197
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• 2006

This study aims to assess the traditional knowledge on seasonal customs and its characteristics for practical use. The Delphi method and correspondence analysis were hired to collect and analysis the data. Twenty six professionals for the Delphi participated in three-round process. The followings were concluded. The number of items valuing and resourcing for seasonal customs. were 118(40 for folks and ceremonies, 53 for foods. 25 for plays) on Delphi results. For example are Bokjori, Dano fm, Bokjumeoni, Chuseok, Tano festival, New Year Card, washing hair with an iris, Soup with rice cake, Boiled rice with five cereals, Rice and red-bean porridge, Kimchi-making for the winter, Sharing walnut with friends, Game of yut, Playing kite, Play with Hanga etc. Nowadays the ideas of modernized practical use on seasonal customs was to connect with modernized scientific technology and designate commemoration day. The items for connecting with modernized scientific technology were new year card, painting and recording sound with traditional seasonal customs, food areas, cake with seven kind of cereals, play areas, hand wrestling, cockfighting in folks and customs areas. Also the items for designating commemoration days were the Suelbeam and Suelbeam Socks present for the aged people, man cooking day, Korean traditional workers day in folk and ceremony areas.