• Journal of KIISE:Software and Applications
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• v.31 no.5
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• pp.577-585
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• 2004

Storing and estimating the high order probability distribution of classifiers and class labels is exponentially complex and unmanageable without an assumption or an approximation, so we rely on an approximation scheme using the dependency. In this paper, as an extended study of the second-order dependency-based approximation, the probability distribution is optimally approximated by the third-order dependency. The proposed third-order dependency-based approximation is applied to the combination of multiple classifiers recognizing handwritten numerals from Concordia University and the University of California, Irvine and its usefulness is demonstrated through the experiments.

• Journal of the Korean Chemical Society
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• v.27 no.6
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• pp.405-410
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• 1983

Bei Verteilungskoeffizient-Werten von 1,3 bis 325 wurde eine lineare Abhangigkeit sowohol der Halbwertsbreite als auch des Elutionsmaximums vom Verteilungskoeffizient gefunden. Die Elutionsversuche an Natrium und Casium haben gezeigt, $da\beta$ eine lineare Abhangigkeit zwischen Sauleulange und Elutionsmaximum besteht. Dieses Verhalten konnte bei 30cm bis 540cm Saulenlange bestatigt werden. Es ist keine lineare Abhangigkeit zwischen Saulenlange und Halbwertsbreit. Es ist zu sehen, $da\beta$ die Halbwertsbreite mit $gro{\beta}er$ wendendem Saulenlange schwach abfallen. Das starkere Abbiegung der Halbwertsbreite bei wachsender Saulenlange fur Substanzen mit geringeren Verteilungskoeffizientunterschied weist auf eine deutliche Verbesserung der Trennung bei Verwendung von $gro{\beta}en$ Saulenlangen hin.

• Journal of Industrial Convergence
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• v.21 no.7
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• pp.65-73
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• 2023

This study identified the relationship between adolescents' academic helplessness and smartphone dependence and verified the parallel mediating effect of self-esteem and friendships. To this end, the fourth data of the Korean Children and Youth Panel Survey 2018 (KCYPS) conducted by the Korea Youth Policy Institute were used, and 2,244 were used for analysis after removing 346 adolescents who responded to the survey. For data analysis, the statistical package programs SPSS WIN 25.0 and Hayes (2013)'s PROCESS Macro V 3.5 were used, and the following results were derived. First, adolescents' academic helplessness had a positive (+)(+) effect on their dependence on smartphones. Second, self-esteem was found to mediate the relationship between adolescents' academic helplessness and smartphone dependence. Third, it was found that friend relationships mediate the relationship between adolescents' academic helplessness and smartphone dependence. Based on these results, practical and policy suggestions to reduce adolescents' dependence on smartphones and follow-up studies to overcome the limitations of research were proposed.

• 한국노년학
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• v.41 no.3
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• pp.421-444
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• 2021

The purpose of this research is to examine the reciprocal relationships between depression and marital satisfaction among older couples. For longitudinal dyadic analysis, this study sets up a research model based on the Actor-Partner Interdependence Model, the Common Fate Model, and Autoregressive Cross-Lagged Model. Data came from four annual waves from the 10th year (2015) to the 13th year (2018) of the Korean Welfare Panel Survey and the final sample comprised a total of 1,383 married couples over 60 years of age in 2015. Structural Equation Modeling identified the reciprocal relationship between depression and marital satisfaction among older couples, with higher marital satisfaction of older couples leading to lower depression of husbands' and wives', and with higher depression of husbands' and wives' inducing lower marital satisfaction of the couples. Thus, this study suggested that longitudinal interplay between depression and marital satisfaction can lead to a vicious cycle. Based on these findings, the need to intervene at both the individual level and the couple level was discussed in order to reduce depression and improve marital satisfaction.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.3
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• pp.707-714
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• 2010

Since an LFSR(linear feedback shift register) as a pattern generator has solely linear dependency in itself, it generates sequences by moving the bit positions for pattern generation. So the correlation between the generated patterns is high and thus reduces the possibility of fault detection. To overcome these problems many researchers studied to have goodness of randomness between the output test patterns. In this paper, we propose the new and effective method to construct phase shifter as PRPG(pseudo random pattern generator).

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.471-478
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• 2023

The purpose of this study is to examine the effects of parental abuse and neglect on adolescents' internet addiction, and to verify the mediating effect of subjective happiness in the relationship between parental abuse and neglects and adolescent internet addiction. To this end, dat from the 16th year of the 2021 Korea Welfare Panel(KWPS) conducted by the Korea Institute for Health and Social Affairs were used. In this study, 1st, 2nd and 3rd graders of high school were analyzed, and data from a total of 325 students were analyzed. The analysis utilized SPSS 27.0 and Hayes(2013)'s Macro Process(model 4) to verity correlation analysis and mediating effects between related variables. The results of the analysis are as follows: First, abuse and neglect from parents directly affect adolescents' Internet addiction. Second, it was analyzed that subjective happiness mediated the effect of parental abuse and neglect on adolescents' Internet addiction.

• Journal of Digital Convergence
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• v.10 no.9
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• pp.429-434
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• 2012

This study was performed to examine the relationship between dependence of elderly peritoneal dialysis patients and burden on family caregivers. The subjects for this study were 50 elderly patients on Continuous ambulatory peritoneal dialysis(CAPD) who were registered in a hospital in Seoul and 50 their family caregivers. The data were collected from April 4 to August 15, 2011. The collected data were analyzed by the SPSS WIN 12.0 program. The mean score of dependence was 139.6 which means their experience of high level dependence. The mean score of burden was 84.2 which means their family caregivers experience of high level burden. Positive correlation was found between dependence of elderly peritoneal dialysis patients and burden on their family caregivers (r=.61, p=.000). It is considered that the study emphasizes for the healthcare providers to recognize dependence as the important nursing issue for elderly CAPD patients. And it is necessary to develop an nursing intervention for decreasing dependence of elderly CAPD patients and burden on their family caregivers.

• Journal of Nutrition and Health
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• v.54 no.3
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• pp.277-291
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• 2021

Purpose: This study was undertaken to identify the alcohol drinking status of industrial workers, their health care practice, and dietary behavior, as well as their nutrient intake. Methods: In July 2019, 220 male subjects working in the Chungnam area were enrolled in the study. Their alcohol drinking status was evaluated by applying the Alcohol Use Disorder Identification-K (AUDIT-K) system. Demographic characteristics, status of health care practice, and dietary behaviors were assessed using a self-administered questionnaire; nutrient intakes were analyzed using 24-hour recalls. Data were analyzed by applying χ²-test, ANOVA, Duncan test, and Pearson's correlation analysis with SPSS v. 25.0. Results: Workers were classified by their alcohol drinking status as 'normal' (84, 38.2%), 'problem drinker' (45, 20.5%), 'alcohol dependence I' (60, 27.3%), and 'alcohol dependence II' (31, 16.0%). The alcohol drinking status showed significant differences with age (p < 0.05), monthly income (p < 0.05), smoking status (p < 0.05), and need for weight control (p < 0.05). Moreover, increased alcohol intake resulted in significantly decreased levels of health care practice and dietary behaviors (p < 0.05, p < 0.01, respectively). The energy intake was highest in the 'alcohol dependence I' group, followed by 'alcohol dependence II', 'problem drinker', and 'normal drinker' (p < 0.05). Intakes of vitamin E, vitamin C, and niacin in the 'alcohol dependence I' group were found to be higher than the other groups (p < 0.05). A negative correlation was obtained between alcohol drinking status, health care practice, and dietary behaviors, whereas a positive correlation was determined between alcohol drinking status, energy and water intakes. Conclusion: Considering these results, we conclude the necessity to consider nutritional and alcoholic education programs for improving the quality of work life of industrial workers, based on their alcohol drinking status.

• Journal of the Korean Vacuum Society
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• v.15 no.2
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• pp.180-185
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• 2006

Microwatt power level at relatively high voltage(order of volt) was produced by $Bi_{0.5}Sb_{1.5}Te_{3}/Bi_{2}Te_{2.4}Se_{0.6}$ thin film thermoelectric generators, and maximum output power varied with temperature difference in the square-law relation. Output voltage and current were possible to control by changing the way of electrical connection as well as the number of stacking plate-modules. Variation of open circuit voltage and short circuit current with temperature difference showed a linear relationship. There were, however, some differences in variations; open circuit voltage were dependent on the number of plate-module when connected in series, but it was not for parallel connection. On the other hand, short circuit current showed the opposite behavior to the case of open circuit current.

• The Journal of the Korea Contents Association
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• v.21 no.3
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• pp.676-684
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• 2021

This study aims to investigate the relationship between depression, internet addiction, and parenting style. The study also examines the mediating effect of parenting style between depression and internet over-dependency. For these purposes, 375 adolescent, excluding missing values, were finally analyzed from the 13th Korea Welfare Panel Study(KWPS). Correlation analysis, mediationg analysis performed using SPSS(21.0 version). The findings of the study were as follows. First, it was identified that parental participation significantly mediated the relationship between depression and internet over-dependency. Second, it was identified that child abuse significantly mediated the relationship between depression and internet over-dependency. Based on the study results, this research suggested the practice and policy implications to increase depression, especially parental participation, to the adolescent as well as to decrease their child abuse.