• Journal of Family Resource Management and Policy Review
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• v.12 no.3
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• pp.103-117
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• 2008

This study focuses on time management behavior, which differs in (1) the characteristics of schools and (2) the experience of education about time management. Also, this study examines the effect of time management behavior on life satisfaction of vocational and non-vocational high school students, and also those who attend life-long education schools. The study sample consists of 367 teen-age high school students in Seoul. The result of this study demonstrates that the experience of education about time management has a great effect on time management behavior. Students experiencing education about time management have higher scores in time management behavior than those who lack such experience. It also shows a close relationship between time management behavior and life satisfaction in non-vocational high school students and those attending life-long education schools.

• Nuclear Engineering and Technology
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• v.51 no.6
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• pp.1616-1625
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• 2019

Measuring occurrence times of random events, aimed to determine the statistical properties of the governing stochastic process, is a basic topic in science and engineering, and has been the subject of numerous mathematical modeling approaches. Often, true statistical properties deviate from measured properties due to the so called dead time phenomenon, where for a certain time period following detection, the detection system is not operational. Understanding the dead time effect is especially important in radiation measurements, often characterized by high count rates and a non-reducible detector dead time (originating in the physics of particle detection). The effect of dead time can be interpreted as a suitable rarefied sequence of the original time sequence. This paper provides a limit theorem for a high rate (diffusion-scale) counter with extendable (Type II) dead time, where the underlying counting process is a renewal process with finite second moment for the inter-event distribution. The results are very general, in the sense that they refer to a general inter arrival time and a random dead time with general distribution. Following the theoretical results, we will demonstrate the applicability of the results in three applications: serially connected components, multiplicity counting and measurements of aerosol spatial distribution.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.4
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• pp.463-471
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• 2018

The career stress of college students is a more serious problem caused by the difficulty of finding a job these days, and various management strategies are needed. The purpose of this study was to investigate the effects of part-time job experience, social support, and ego-resilience on career stress in order to suggest ways to manage career stress. The subjects were 457 college students. Multiple regression analysis was used. First, there were no significant differences in ego-resilience, social support, and career stress according to the experience of part-time job. However, employment pressure, a sub-scale of career stress, was higher among college students who had part-time jobs. Second, the experience of part-time work had a significant effect on career stress. College students without a part-time job showed higher career stress than those who had. Third, the effect of social support on career stress was more effective for college students who did not have part-time jobs. Fourth, ego-resilience showed no effect on career stress. However, an interaction effect between the part-time job experience and gender was found. Based on these findings, college students without part-time work experience should be offered counseling management through social support and a program is needed to enhance ego-resilience in female students.

• 한국사회정책
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• v.19 no.3
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• pp.215-245
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• 2012

The purpose of this study is to examine pathways of factors that influence job satisfaction for full-time and part-time married female employees with children of 18 or under and to compare path coefficients for two groups. Simultaneously analyzing multiple populations, we found that the path model was appropriate for both groups with significant differences in path coefficients. Income, workplace size, husband's support for wife's work, and work-to-family conflict had direct effects on job satisfaction for both groups whereas health had a direct effect only among full-time workers. Family-to-work conflict had an indirect effect for both types of workers, while health had an indirect effect among full-time employees only, and income and having children under school age among part-time employees only. The results indicate that differentiated approaches to increase job satisfaction for full- and part-time employees are needed.

• Communications for Statistical Applications and Methods
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• v.7 no.2
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• pp.513-523
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• 2000

The X-12-ARIMA program was utilized on the analysis of the time series trend on 76 Korean industrial activities data in order to ensure that the trading day effect adjustment as well as the seasonal effect adjustment is needed to extract the fundamental trend-cycle factors from various economic time series data. The trading day effect is strongly correlated with the activity of production and shipping but not with the activity of inventory. Furthermore, the industrial activities were classified with respect to the sensitivity on the tranding day effect.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.11 no.1
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• pp.26-32
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• 1998

We have studied how the characteristics degradation between effective mobility and field effect mobility of gate channel in p-MOSFET's affects the gate channel length being follow by increased stress time and increased drain-source voltage stress. The experimental results between effective and field-effect mobility were analyzed that the measurement data are identical at the point of minimum slope in threshold voltage, the other part is different, that is, the effective mobility it the faster than the field-effect mobility. Also, It was found that the effective and field-effect mobility. Also, It was found that the effective and field-effect mobility of p-MOSFET's with short channel are increased by decreased channel length, increased stress time and increased drain-source voltage stress.

• Electrical & Electronic Materials
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• v.8 no.5
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• pp.626-632
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• 1995

In this paper, The effect of the impedances in SNOSFET's memory devices has been developed. The effect of source and drain impedances measured by means of two bias resistances - field effect bias resistance by inner region, external bias resistance. The effect of the impedances by source and drain resistance shows the dependence of the function of voltages applied to the gate. It shows the differences of change in source drain voltage by means of low conductance state and high conductance state. It shows the delay of threshold voltages. The delay time of low conductance state and high conductance state by the impedances effect shows 3[.mu.sec] and 1[.mu.sec] respectively.

• The Journal of Korean Academy of Sensory Integration
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• v.10 no.2
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• pp.23-32
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• 2012

Objective : The aim of the present single subject research was to identify the effect of sensory diet based on proprioception on toddler's sleep pattern and the continuance of the effect. Methods : The sensory diet based on proprioception consisted of 14 session was provided to a 13 months old girl for 2 weeks. The time taken to fall asleep, amount of sleep, bed time and severity of behavior before sleep were recorded by her mother who was taken the education about observation. Results : After the sensory diet, the child present change of time taken to fall asleep, amount of sleep, bed time and severity of behavior before sleep, and the effect on time taken to fall asleep, continued temporally. Conclusion : The sensory diet based on proprioception was related to stabilize the sleep pattern of a toddler, and the effect of the sensory diet continued temporally after the sensory diet. For future research, more subjects and methodical measure are need to generalize the result of sensory diet based on proprioception affecting to toddler's sleep pattern.

• Science of Emotion and Sensibility
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• v.21 no.4
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• pp.91-102
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• 2018

Although accurate time perception is necessary to properly respond to the environment, it was discovered that non-temporal features also affect time perception. Previous studies have identified various factors that affect time perception, but there was no attempt to directly investigate the possible effects of the distance between participants and the stimuli on time perception. The current study examined the effects of viewing distance on time perception, by considering the retinal, physical, and perceived size of the stimuli. The viewing distance had no effect when either the physical size or the perceived size of the stimulus was the same. Viewing distance was found only to have an effect when the retinal size of the stimulus was the same. This effect might be a size effect rather than a distance effect because as the viewing distance increases the size should also increase to maintain the retinal size. These results imply that temporal perceptual constancy is preserved irrespective of the viewing distance, when distance information is not limited.

• Industry Promotion Research
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• v.9 no.2
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• pp.175-183
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• 2024

This study aims to provide basic data that can reduce the parenting stress of parents raising disabled children by verifying whether parenting time mediates the effect of parenting stress on mental health through parenting efficacy. The subjects of the survey were parents of disabled children, a total of 315 people. Data were analyzed using SPSS and SPSS PROCESS macro 4.2. Descriptive statistical analysis, reliability analysis, correlation analysis, and moderated mediation effect analysis were applied. The research results are as follows. First, the parenting stress of parents raising disabled children showed a positive correlation with parenting efficacy, a negative correlation between parenting stress and mental health, and a negative correlation between parenting efficacy and mental health. Second, parenting time moderated and mediated the effect of parenting stress on mental health through parenting efficacy. In conclusion, it was confirmed that the parenting time of parents raising disabled children plays a role in increasing the negative impact of parenting stress on mental health through parenting efficacy.