• Journal of Advanced Marine Engineering and Technology
• /
• v.24 no.5
• /
• pp.52-57
• /
• 2000

Recently large capacity of electric equipment and increasing in atomic power generation are shown. One of the reason is shortage of the electric power supply for air conditioning load during summer. And every consumer is concerning about economical refrigeration and air conditioning system to decreases electric power consumption and decrease in global warming. For these necessities, ice making thermal storage system is required. Therefore, in this paper, the possibility of continuous slurry ice making using flowing organic water solution in cooled circular tube has been investigated. The experiments was carried out under some parameters of concentration and velocity of water solution, temperature of cooled tube wall, and control pressure in tube, As a result, four types of operating conditions in the pipe, that was supercooling, continuous ice making, intermittent ice making and ice blockage, were classified . And it was found that the critical condition for continuous ice making was acquired as a function of these experimental parameters.

• Asia pacific journal of information systems
• /
• v.4 no.1
• /
• pp.74-114
• /
• 1994

In spite of the importance of group decision making in corporations and recent active research efforts in group decision support systems in the US., few studies have been done in the area of group decision making in Korea. There is an urgent need to understand the behavior and peculiar characteristics of group decision making in Korea before we initiate any research in developing computer systems to help group decision making. This study proposes a model for group decision making based on the literature survey and empirical studies have been conducted using the model Although this study is exploratory in nature, tentative hypotheses are given for future research in group decision making.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
• /
• v.13 no.6
• /
• pp.455-461
• /
• 2001

Domestic ice making companies make effort to obtain products and neglect to introduce low cost product improvements with energy savings. The work presented here is an implementation of ice making method to improve both energy efficiency and productivity. In this present investigation, several ice making cycles are proposed for higher efficiency in the system. COP(Coefficient of Performance), ice making time and electric energy consumption are evaluated and compared with the conventional system. Results shows that COP is improved with more efficient use of time for ice making and electric consumption. Therefore, this can offer an opportunity for more efficient use of energy and higher productivity in ice making.

• Korean Journal of Child Studies
• /
• v.27 no.1
• /
• pp.81-94
• /
• 2006

Participants in this study of the effect of story making activity on the language expression and creativity of young children were all forty 5-year-old children in a child-care facility. The experimental group read the fantasy picture book and engaged in story making activity; the control group read the same fantasy picture books the experimental group but didn't have any story making activity. Experimental treatments were given twice a week for 6 weeks. Data were analyzed by MANCOVA using scores of the pre-test as covariance. Differences were found between experimental and control groups in language expression and creativity showing that story making activity using the fantasy picture book was more effective than just reading without story making activity.

• Korean Journal of Child Studies
• /
• v.33 no.3
• /
• pp.99-117
• /
• 2012

The purpose of this study was to investigate children's theory of mind in pretend play and story-making, from a qualitative perspective. Three-to-five year old children participated in group play and individual story-making activities. Children's narratives undertaken in two tasks were video-taped, transcribed, analyzed and reorganized into three key propositions, in consideration of the field notes that the researcher had taken. The children started their pretend play and story-making activities by 'forming connections among minds' of participants or story components. They continued to engage in pretend play and story making by 'dealing minds constructively and consistently' to keep their themes. Finally they resolved discordances in play and story-making by 'settings different mind windows and moving among them flexibly'.

• Journal of the Korean Institute of Rural Architecture
• /
• v.10 no.4
• /
• pp.49-56
• /
• 2008

Through a case study on The making of communities driven by citizen autonomy in Cheongju, The study is to figure out how it proceeded and how many were finished by project. These projects completed in 2007 and 2008 for "Campaign of making beautiful communities" were driven by people at community center in Cheongju city. This paper consisted of research on establishment and operation of community center, the developing process of "Campaign of making beautiful communities" and an analysis of each project. This study was based on the interviews of the official of Cheongju city for having ideas about establishment and operation of community center and the developing process of "Campaign of making beautiful communities" and also visits each center for investigating actual programs accomplished.

• East Asian Journal of Business Economics (EAJBE)
• /
• v.4 no.2
• /
• pp.28-46
• /
• 2016

The study aims to find out relationship between investor's psychology and financial decision making. A questionnaire containing ten questions for investor's psychology and eleven questions on financial decision making was administered. The questionnaires addressed demographic and cultural variables and resulted in three investor's psychology and three for financial decision making. The results show differences in psychology of investors of different age groups. Similarly difference in financial decision making was observed for different age groups. Also a linear dependency was observed between the psychology and decision making.

• Journal of Families and Better Life
• /
• v.20 no.1
• /
• pp.75-86
• /
• 2002

The purpose of this study is to analyse the change of agricultural labor participation and decision-making involvement of rural women in Korea from 1960s to 1990s. For analysis of these changes, I used the data surveyed and collected by different researchers during those times. During last 40 years, rural society and the mode of agricultural production rapidly changed according to the development of Korean industry. Agricultural labor participation of rural women increased since the mid 1970s. Their agricultural labor expanded into full ranges of farming. Their decision-making involvement also expanded into all divisions of farming. However, they did not have decision making power as much as they contributed to farm labor The expansion of rural women's labor within the sphere of farm production has not substantially altered the decision-making power structure within the farm household.

• Proceedings of the KIEE Conference
• /
• 2005.07b
• /
• pp.966-968
• /
• 2005

Generally the high-voltage and high-current making switch is used to test the short-circuit test. The making switch should be operated always same speed/time and kept electrical-mechanical characteristic. There are spring charge type, hydro-pneumatic type and compressed air type etc. according to operation method of making switch contacts. Especially the making switch contacts of hydro-pneumatic type are moved by actuator and accumulator. To keep same speed/time of contacts and characteristic of making switch, actuator and accumulator should be worked always uniformly. So the dynamic analysis of actuator and accumulator of hydro-pneumatic type making switch will be helpful to maintain and design.

• Hwankyungkyoyuk
• /
• v.15 no.1
• /
• pp.125-136
• /
• 2002

The ultimate goal of environmental education is to train the civilian who positively participates in solving environmental problems. To do above, not only accurate knowledge but also right value about environmental problems are needed. It is reasonable decision making that choose the first of all alternatives to solve the problems by accurate knowledge and right value of an individual. Teaching reasonable decision making in environmental education is related to raise the participant civilian toward regional environmental problem solving Simulation game helps that students have a opportunity to practice decision making skills about regional problems and give self-confidence to their decision making ability. So, the aim of this study is to present simulation games which is fit to elementary environmental education. The first one is for group decision making, the second one is for individual decision making. These can make a conclusion, winner and loser of games. But last one is open-ended game and aims to make explicit a variety of opinions, issues and conflicts to problem.