• Journal of the Korean Operations Research and Management Science Society
• /
• v.15 no.2
• /
• pp.71-83
• /
• 1990

This paper concerns the analyses of dynamic adjustments in noncooperative games where the market informations are given at discrete time intervals. During the game period, the market informations are given at discrete time intervals. During the game period, the inventories initially stored by players are to be released one day based to the completely competitive market so as to maximize each player's revenue, where players' parameters are unknown one another. Game results have shown that the continuous dynamic adjustment does not necessarily assure the better revenue, and if a player thinks that his parameter is underestimated by hig opponent, then he is better overestimate his opponent's parameter.

• Women's Health Nursing
• /
• v.24 no.3
• /
• pp.322-332
• /
• 2018

Purpose: To investigate the effect of a maternal role adjustment program on first-time mothers. Methods: The research was quasi-experimental with a non-equivalent control group non-synchronized design. Participants were first-time mothers admitted to two postpartum clinics at women's hospitals. The experimental group had 38 mothers and the control group had 35 mothers. A maternal role adjustment program was applied individually to the experimental group between the 1st and 2nd weeks after childbirth. Assessing Adaptation to Motherhood, Semantic Differential Scale-Myself as Mother, and Edinburgh Postnatal Depression Scale were used to measure effects of the program. A pre-test was conducted in the 1st week after childbirth while post-tests were conducted in the 4th and 6th weeks. Data were analyzed with $x^2$ test, Fisher's exact test, t-test, and repeated measures ANOVA using SPSS 24.0. Results: Maternal role adjustment (F=6.17, p=.015) and maternal identity (F=6.63, p=.012) were significantly increased in the experimental group compared to those in the control group. However, the difference in postpartum depression (F=1.11, p=.335) was not statistically significant between the two groups. Conclusions: The maternal role adjustment program can be utilized as an effective nursing intervention program to enhance maternal role adjustment and maternal identity for first-time mothers.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.27 no.6
• /
• pp.669-678
• /
• 2009

Real-time image georeferencing technologies are required to generate spatial information promptly from the image sequences acquired by a multi-sensor system. We thus derive a sequential adjustment algorithm based on the combined adjustment model. By adopting the sequential adjustment model, we develop a sequential AT(Aerial Triangulation) algorithm to georeference image sequences in real-time. The proposed algorithm enables to perform AT rapidly with the minimum computation at the current stage by using the results computed at the previous stage whenever a new image is added. Experiments with simulated data were conducted to verify the effectiveness of the proposed algorithm. The results of the experiments show that the georeferencing of each image took very short time and its accuracy was determined within ${\pm}4cm$ on the ground control points comparing to the results of the existing simultaneous AT.

• International Journal of Human Ecology
• /
• v.8 no.2
• /
• pp.75-83
• /
• 2007

Korean secondary school students (n=263) responded to surveys measuring their family contexts and school adjustment during the time period August-September 2004. Structure Equation Modeling tests were conducted to identify the nested model on school adjustment, a latent variable constructed with peer relations, teacher-adolescent relations, and academic attitude. In the nested model, parental involvement was a powerful predictor for school adjustment. Family conflict had a negative impact on school adjustment and was statistically significantly when correlated with the other predictors in the model. These finding suggested that family contexts play an important role in Korean adolescents' school adjustment. Hence, adolescents' perceived GPA level and satisfaction for school were important predictors for school adjustment.

• Journal of Agricultural Extension & Community Development
• /
• v.19 no.1
• /
• pp.95-127
• /
• 2012

The objective of this study was to examine multicultural family children's adjustment process to kindergarten and differences in their adjustment among time points. For these purpose, we conducted interviews and a questionnaire survey with teachers in charge of 3-5-year-old young children from multicultural families at public and private kindergartens in Gwangju, Jeollanamdo and Daejeon. According to the results of this study, multicultural family children adjusted themselves to kindergarten through four weeks' daily life in the kindergarten. In daily work adjustment, they showed some difficulty in Week 2 but their adjustment improved rapidly in Week 3 and Week 4. Self adjustment and peer adjustment also improved notably in Week 3 and Week 4. In pro-social adjustment, the children showed difficulty in Week 2, improvement in Week 3, and again difficulty in Week 4. These results suggest that, by responding to the teacher's sensitivity and intimacy, young children in multicultural families have a pattern of adjustment similar to that of young children in Korea families.

• Journal of the Korean Statistical Society
• /
• v.30 no.2
• /
• pp.281-290
• /
• 2001

Symmetric estimation and recursive mean adjustment are considered to construct tests for the doble unit root hypothesis for both parametric and semiparametric time series models. It is shown that simultaneous application of symmetric estimation and recursive mean adjustment yields the most powerful test. Moreover, size property of the semiparametric test based on the simultaneous application is bet among all semiparametric tests.

• Journal of the Korea Safety Management & Science
• /
• v.1 no.1
• /
• pp.111-121
• /
• 1999

An important problem in process adjustment using feedback is how often to sample the process and when to apply an adjustment. Schemes are designed to minimize the overall cost. The cost is taken the frequency with which they require observations to be made, and the resulting overall length of time between adjustments. In this article, the process adjustment which is based on the adaptive EWMA forecasts is derived. An example is presented to improve the standard variation through the analysis of data series.

• Proceedings of the Safety Management and Science Conference
• /
• 2004.11a
• /
• pp.415-438
• /
• 2004

This dissertation is assumed to continuously occur adjustment cost on present investment. So, I derived from time-nonseparable production-based CAPM and tested the performance of model through data. I also compared time-nonseparable production-based CAPM with time-separable production-based CAPM and CCAPM, CAPM through testifying the performance of model. At the part of applied application, I estimated time-nonseparable PCAPM-betas. The data of Korea consists of 320 listed companies on Korea Stock Exchange (KOSPI) from first quarter 1987 to first quarter 2002. This data also is categorized by scale and industries. Additionally, I estimated time-nonseparable PCAPM-betas through 500 listed companies of New York Stock Exchange (NYSE) from first quarter 1973 to first quarter 2002. I observed the statistical significance of 230 firms by 320 companies in Korea. After that, I compared time-nonseparable PCAPM-betas by firms with time-separable production-based CAPM-betas and CCAPM-betas, CAPM-betas through individual firms. At empirical test, I found that estimated parameter of adjustment cost on time-nonseparable production-based CAPM by scale and industries in Korea had positive value and statistical significance, Moreover, this approach proved to resolve the underestimation of adjustment cost on time-separable production-based CAPM by scale and industries. I also found that the time-nonseparable PCAPM performed better than time-separable production-based CAPM and CCAPM, CAPM. The result from U.S data proved to have similarity to that of Korea. Specifically, I found that time-nonseparable PCAPM-betas by firms performed better than CAPM-betas on individual firms in Korea.

• Journal of the Korea Society of Computer and Information
• /
• v.22 no.7
• /
• pp.93-100
• /
• 2017

In this paper, we propose a methodology of using time-lag, make it serve the sound field, in order to smoothen the music production and reduce conflicts. The importance of music production in today's music industry chain is becoming more and more apparent. In the process of music production, the creators pay more attention to the design and adjustment of virtual sound field, especially the late mixing and production. In the process, as a commonly used tool for the adjustment of sound field, "time-lapse" plays a decisive role.

• Journal of Family Relations
• /
• v.23 no.1
• /
• pp.139-156
• /
• 2018

Objectives: The purpose of this study is to examine the impact of solution- focused thinking on middle-aged married women's role adjustment and life satisfaction through positive emotions. Method: The subjects of this study is middle-aged married women who reside in an urban community in South Gyeongsang Province. As for data analysis, SPSS 22.0 and AMOS 21.0 are employed. Results: The findings of the study were as follows: First, concerning the relationships of the variables, there were significant positive correlations among all the solution-focused thinking, positive emotions, role adjustment and life satisfaction. Second, solution-focused thinking had significant direct effect on positive emotions, and role adjustment. Solution-focused thinking had significant indirect effect on role adjustment through the medium of positive emotions at the same time. Solution-focused thinking had a significant indirect effect on life satisfaction through the medium of positive emotions and role adjustment. Positive emotions had no direct effect on life satisfaction but had a significant indirect effect on it through the medium of role adjustment. Conclusions: The findings of the study conclude that solution-focused thinking exercised an indirect influence on life satisfaction through the medium of positive emotions and role adjustment made it possible to find a way to provide solution-focused counseling for clients to lead a more satisfactory life.