• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.10
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• pp.4819-4829
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• 2013

The purpose of this study was to figure out the effects of parents' energy conservation awareness and behaviors on young children's environment-friendly attitudes and environmental preservation knowledge. To achieve this, a survey was carried out to 160 kindergarten children and their parents in the farming and fishing communities located in N city, Chungnam through June 10 to June 30, 2013. The results of the analysis were as follows. First, the effect of parents' energy conservation awareness on young children's environment-friendly attitudes showed that parents' environmental preservation awareness and energy conservation awareness had an effect on young children's environment-friendly attitudes. Second, the effect of parents' energy conservation behaviors on young children's environment-friendly attitudes showed that parents' general behaviors and selective behaviors had an effect on young children's environment-friendly attitudes. Third, the effect of parents' energy conservation awareness on young children's environmental preservation knowledge showed that parents' environmental preservation knowledge and energy conservation awareness had an effect on young children's environmental preservation knowledge. Fourth, the effect of parents' energy conservation behaviors on young children's environmental preservation knowledge showed that parents' general behaviors and selective behaviors had an effect on young children's environmental preservation knowledge. As for findings stated above, parents' energy conservation awareness and behaviors had a positive effect on children's environment-friendly attitudes and environmental preservation knowledge. This implies that parents' right energy conservation awareness and behaviors are important to enhance children's positive environment-friendly attitudes and environmental preservation knowledge.

• Journal of Families and Better Life
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• v.5 no.2
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• pp.29-44
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• 1987

The objectives of this study were; (1)to determine if socio-demographic variables influence energy conservation attitude, energy conservation knowledge, energy conservation behavior of consumer, (2) to determine if energy conservation attitude and energy conservation knowledge influence energy conservation behavior of consumer, (3) to examine the causal relationships among variables which influence energy conservation behavior of consumer. The model for this study included following variables; (1) socio-demographic variables, which are the independent variables; (2) energy conservation behavior of consumer, which is a dependent variable; (3) energy conservation attitude of consumer, which is an intervening variable ;(4) energy conservation knowledge of consumer, which is an intervening variable. The data used in this study included 502 homemakers living in Seoul. Statistics used for data analysis were ANOVA, Pearson's Correlation and Path Analysis. The major findings were follows; (1) Energy conservation attitude and energy conservation behavior difference significantly according to the level of family income among socio-demographic variables such a age, educational level and family income. Energy conservation knowledge differenced significantly educational level, and family income. Energy conservation knowledge difference significantly educational level. (2) Energy conservation behavior differed significantly according to energy conservation attitude and energy conservation knowledge. (3) Energy conservation attitude and energy conservation knowledge had positive effects on energy conservation behavior directly and indirectly. (4) Family income had negative effects on energy conservation behavior directly and indirectly through energy conservation attitude. Education had positive effect on energy conservation behavior indirectly through energy conservation knowledge.

• Journal of Families and Better Life
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• v.8 no.2
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• pp.119-134
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• 1990

The purpose of this study were to investigate; The contact of housewives with governmental public advertisement about the energy conservation, general tendency about the energy conservation consciousness and behavior. For these purposed, a survey was conducted using questionnaires. Data analysis were conducted from 367 housewives with children in Seoul. Used statistical method were Frequency Distribution, percentile, Mean, one Way Anova, t-test, F-test, Pearson's Correlation, Multiple regression Analysis and Path Analysis. Major findings are as follows. 1) Level of public advertisement contact was low. In contrast to , level of energy conservation consciousness, consciousness change, and behavior was adequately high. 2) Statistically significant difference were found in advertisement contact according to the husband's age , Energy conservation consciousness change according to husband's occupation, and energy conservation behavior according to family life cycle. 3) Energy conservation consciousness changes were increased by advertisement contact. Energy conservation behaviors were increased by conservation consciousness and the degree of conservation consciousness change. 4) Governmental public advertisement about the energy conservation has both direct and indirect effect on the energy conservation behavior. From these finds, the following suggestions are made. Governmental effort about the energy conservation advertisement is needed to be activated. And the implications for the future study was need to incorporate the psychological variables in energy conservation study.

• The Transactions of the Korean Institute of Electrical Engineers
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• v.45 no.3
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• pp.415-425
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• 1996

This study presents an analytical method of solving the behaviors of arc plasma in a nozzle constricting transferred-type torch and purposes to obtain the basic data for the design of a plasma torch, which can be obtained from the temperature, pressure, velocities and voltage distributions. We have to solve some conservation equations simultaneously and need to know the exact thermal gas properties in order to obtain the correct behaviors of arc plasma. It is also necessary to give the relevant physical or geometric boundary conditions. For the simplicity of analysis, we assumed that (a) the plasma flow is laminar, (b)the local thermodynamic equilibrium, i.e. LTE, prevails over the entire arc column region. The electrode sheath effects were neglected and the nozzle area was excluded from the analysis by assuming that the current flow into the nozzle is zero. We solved the momentum transfer equation including the self-magnetic pinch effect, and obtained the temperature distribution from the energy conservation equation. From this temperature, we could get arc voltage distribution. (author). refs., figs., tabs.

• Journal of computational fluids engineering
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• v.21 no.3
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• pp.8-14
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• 2016

A numerical analysis is conducted to estimate the core expansion and the energy behaviors induced by a core disruptive accident in a sodium-cooled fast reactor. The numerical formulation based on underwater explosion theory is carried out to simulate the core explosion inside the reactor vessel. The transient pressure, temperature and expansion of the core are examined by solving the equation of state and nonlinear governing equation of momentum conservation in one-dimensional spherical coordinates. The energy balance inside the computation domain is examined during the core expansion process. Heat transfer between the core and the sodium coolant, and the bubble rise during the expansion process are briefly investigated.

• Journal of the Korean Society for Railway
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• v.6 no.3
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• pp.174-178
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• 2003

This paper presents the development of 2-dimensional discrete element algorithm to generate circle and line elements for the simulation of the ballast and sleeper in railway. An example of randomly distributed circle elements show a good applicability of this algorithm for the modeling of the behaviors of ballast. The output about unbalaned force, particle velocity, and total energy conservation from the code is evaluated to check if the calculation is conducted properly.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.10
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• pp.4783-4790
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• 2016

Purpose: Cancer-related fatigue is frequently experienced by patients during and after therapy. The present study was conducted to assess the impact of energy conservation strategies and health promotion in breast cancer survivors. Methods: A randomized controlled trial was carried out to compare the intervention effect (n=69.0) with controls (n=66.0) based on routine oncology ward care. The intervention was five weekly sessions for groups of 6-8 breast cancer survivors. Data on fatigue and health promotion lifestyle were obtained before and after completion the intervention and then 8 weeks later for analysis of variance (ANOVA) with repeated measures. Results: Our findings showed cancer-related fatigue to be reduced in the intervention group from pre- to post-intervention, and this persisted over the 8-weeks follow-up period (F = 69.8, p<0.001). All subscales of the cancer fatigue scale demonstrated statistically significant effects with partial eta-squared values ranging from 0.15 (the smallest effect in cognitive fatigue) to 0.21 (the largest for affective fatigue). Changes in the health promotion life style indicated a significant promotion from pre- to post-intervention, and this again continued after 8-weeks follow-up (F = 41.6, p < 0.001). All six domains of a health promoting life style featured significantly elevated values, the largest effect being seen in the interpersonal relations subscale (F=57.7, partial ${\eta}^2=0.21$, p<0.001) followed by physical activity (F=51.9, partial ${\eta}^2=0.18$, p<0.001). Conclusions: The program was effective in decreasing cancer related fatigue and promoting a healthy lifestyle.

• Journal of Energy Engineering
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• v.26 no.2
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• pp.93-98
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• 2017

This paper aims to examine how gamification strategies lead to the changes in consumers' perspectives and behaviors on energy savings. Since gamification strategies began to be widely used in the late 2010s, the strategies have been extensively applied to a variety of industries and applications, including the field of energy savings. As energy saving practices adopting gamification strategies reflect the attributes of game, citizens can be pleased to participate in energy saving activities. Also, the gamification strategies are expected to raise citizens' awareness to the necessity of reducing energy consumption. Therefore, considering the subjects and specific objectives, the action plans for applying gamification strategies to energy saving programs are required to be established to meet the demand of new services on energy savings.

• Journal of Energy Engineering
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• v.25 no.4
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• pp.236-244
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• 2016

Theoretical review of the PR activities was initiated using Lasswell's (1948) SMCRE model to evaluate the indicators of the collaborative programs with NGO and the outcome of the activities promoting energy-saving programs. The indicators were then set based on a case study by Nho Younhwoo (2012). This paper aims to develop evaluation indicators for the activities promoting energy-saving programs and evaluate how energy consumers recognize the reputations of PR agencies (sender), PR content (message), PR media outlets (channel), and the degree to which such PR activities induce energy-saving behaviors.

• Nuclear Engineering and Technology
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• v.53 no.2
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• pp.455-465
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• 2021

The Molten Salt Reactor (MSR), one of the six advanced reactor types of the 4th generation nuclear energy systems, has many impressive features including economic advantages, inherent safety and nuclear non-proliferation. This paper introduces a system analysis code named TREND, which is developed and used for the steady and transient simulation of MSRs. The TREND code calculates the distributions of pressure, velocity and temperature of single-phase flows by solving the conservation equations of mass, momentum and energy, along with a fluid state equation. Heat structures coupled with the fluid dynamics model is sufficient to meet the demands of modeling MSR system-level thermal-hydraulics. The core power is based on the point reactor neutron kinetics model calculated by the typical Runge-Kutta method. An incremental PID controller is inserted to adjust the operation behaviors. The verification and validation of the TREND code have been carried out in two aspects: detailed code-to-code comparison with established thermal-hydraulic system codes such as RELAP5, and validation with the experimental data from MSRE and the CIET facility (the University of California, Berkeley's Compact Integral Effects Test facility).The results indicate that TREND can be used in analyzing the transient behaviors of MSRs and will be improved by validating with more experimental results with the support of SINAP.