• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.11
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• pp.209-218
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• 2020

This study examined the sexual function, sexual distress, and quality of life of middle-aged women with osteoarthritis, as well as the factors influencing the quality of life. The participants were 121 middle-aged women who have been suffering osteoarthritis. Data collection was conducted from September 1 to October 31, 2019. The instruments were the Female Sexual Distress Scale (FSDS), the Female Sexual Function Index (FSFI), and the World Health Organization Quality of Life Assessment Instrument (WHOQLO) -BREF scale. Data were collected with structured questionnaires and analyzed using a t-test, ANOVA, Pearson's correlation analysis, and multiple regression analysis. A positive correlation was observed between sexual function and quality of life, whereas sexual distress had a negative correlation between sexual function and the quality of life. Factors affecting the quality of life of middle-aged women with osteoarthritis were sexual function, sexual distress, which explained 16.1%. Sexual distress, sexual function, and quality of life showed a correlation. Therefore, it is important to develop a nursing intervention that can improve the sexual function and reduce the sexual distress of middle-aged women with osteoarthritis to improve their quality of life.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.14 no.24
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• pp.23-30
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• 1991

This study aimed at the improvement of the conventional methods of VE Function Analysis, the most important phase of VE process, through Quality Function Development. The use of Function Requirement Coefficients in Quality Function Development makes the Function Development more objective, and it was found that VE techniques, when used in combination with QC techniques. Improve the value of product considerably.

• Child Health Nursing Research
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• v.12 no.2
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• pp.180-188
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• 2006

Purpose: The purpose of this study was to explore family function, social support, perceived quality of life(QOL) in adolescent period and to find out the correlations between family function, social support, perceived QOL in adolescents. Method: The questionnaire to get some information for this study consisted of adolescents'general characteristics, 20 questions regarding family function, 11 questions regarding social support, 8 questions regarding perceived QOL in adolescents. The subjects of this study consisted of 128 adolescents who were living in S area. The data were analyzed by percentage, mean, t-test, ANOVA and Pearson's correlation using the WINSPSS program. Result: The mean score for family function was 3.07(max. : 5) and there was significant difference according to middle-high school student. The mean score for social support was 2.86(max : 5) and there was no significant difference. The mean score for perceived QOL was 4.02(max score: 7) and there was significant difference according to disease condition. There was a positive correlation between family function, social support, perceived QOL in adolescents. Conclusion: Consequently, the development of program, policy assistance and policy implementation to elevate juveniles' perceived quality of life is strongly required.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.40 no.1
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• pp.165-172
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• 2017

Machines are physically or chemically degenerated by continuous usage. One of the results of this degeneration is the process mean shift. Under the process mean shift, production cost, failure cost and quality loss function cost are increasing continuously. Therefore a periodic preventive resetting the process is necessary. We suppose that the wear level is observable. In this case, process mean shift problem has similar characteristics to the maintenance policy model. In the previous studies, process mean shift problem has been studied in several fields such as 'Tool wear limit', 'Canning Process' and 'Quality Loss Function' separately or partially integrated form. This paper proposes an integrated cost model which involves production cost by the material, failure cost by the nonconforming items, quality loss function cost by the deviation between the quality characteristics from the target value and resetting the process cost. We expand this process mean shift problem a little more by dealing the process variance as a function, not a constant value. We suggested a multiplier function model to the process variance according to the analysis result with practical data. We adopted two-side specification to our model. The initial process mean is generally set somewhat above the lower specification. The objective function is total integrated costs per unit wear and independent variables are wear limit and initial setting process mean. The optimum is derived from numerical analysis because the integral form of the objective function is not possible. A numerical example is presented.

• Geomechanics and Engineering
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• v.16 no.5
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• pp.539-545
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• 2018

Longitudinal Displacement Profile (LDP) is an appropriate tool for determination of the displacement magnitude of the tunnel walls as a function of the distance to the tunnel face. Some useful formulations for calculation of LDP have been developed based on the monitoring data on site or by 3D numerical simulations. However, the presented equations are only based on the tunnel dimensions and for different quality of rock masses proposed a unique LDP. In the present study, it is tried to present a new formulation, for calculation of LDP, on the basis of Rock mass quality. For this purpose, a comprehensive numerical simulation program was developed to investigate the effect of rock mass quality on the LDP. Results of the numerical modelling were analyzed and the least square technique was used for fitting an appropriate curve on the derived data from the numerical simulations. The proposed formulation in the present study, is a logistic function and the constants of the logistic function were predicted by rock mass quality index (GSI). Results of this study revealed that, the LDP curves of the tunnel surrounded by rock masses with high quality (GSI>60) match together; because the rock mass deformation varies over an elastic range.

• Journal of the Korean Society of Industry Convergence
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• v.13 no.1
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• pp.23-30
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• 2010

This paper presents a histogram equalization based on the nonlinear transformation function for enhancing the quality of medical images. The nonlinear transformation function is applied to adaptively equalize the brightness of the image according to its intensity level frequency. The logistic function is used as a nonlinear transformation function, which is calculated by only using the intensity level with maximum frequency and the maximum intensity level in an histogram, and the total number of pixels. The proposed method has been applied for equalizing 8 medical images with a different resolution and histogram distribution. The experimental results show that the proposed method has the superior enhancement performances compared with the conventional histogram equalization. And the proposed histogram equalization can be used in various multimedia systems in real-time.

• Human Ecology Research
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• v.60 no.4
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• pp.507-520
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• 2022

The present study identified the effects of parents' work-family conflict on their and partners' co-parenting quality, as well as the mediating roles of co-parenting quality and children's executive function difficulties in linking parents' work-family conflict to their children's school adjustment. This study used data from 387 dual-earner parents and their first-grade elementary school children, who participated in the Panel Study on Korean Children. An actor-partner interdependence and mediation model analysis using structural equation modeling revealed the following findings: first, the actor and partner effects of parents' work-family conflict on co-parenting quality were significant for both fathers and mothers. Second, the effect of the fathers' work-family conflict on their co-parenting quality was found to be greater than that of the mothers' work-family conflict on the fathers' co-parenting quality. Third, fathers' and mothers' work-family conflict, respectively, exerted an indirect effect on their children's school adjustment through the serial mediation by the mothers' co-parenting quality and children's executive function difficulties, whereas the direct effects of fathers' and mothers' work-family conflict on children's school adjustment were not supported. Finally, this study suggests that co-parenting quality and children's executive function should be considered to facilitate children's school adjustment in the parent education of dual-earner families with first-grade elementary school children, and that continuous policy efforts for dual-earner parents' work-family balance are needed.

• Journal of Korean Academy of Nursing
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• v.38 no.4
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• pp.573-581
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• 2008

Purpose: The purpose of this study was to investigate the relationships among quality of sleep, depression, late-life function and disability in community-dwelling older women with urinary incontinence. Methods: A stratified random sampling method was conducted to recruit participants from May 10 to August 17, 2007. Data were collected by questionnaires, which were constructed to include lower urinary tract symptoms, quality of sleep, depression, and late-life function and disability in 128 community-dwelling older women. Results: The major findings of this study were as follow: 1) 56.3% of participants belonged to urinary incontinence group. 2) There were significant relationships between depression and sleep latency, sleep duration, daytime dysfunction, quality of sleep, function component, frequency dimension, and limitation dimension. 3) Depression was significantly associated with frequency dimension, limitation dimension in capability which explained 44% of variance in depression. Conclusion: These results may contribute to a better understanding of sleep quality, depression, late-life function and disability in the community-dwelling older women with urinary incontinence. Therefore, health programs for prompting older women's health should be planned based on results of the study.

• Women's Health Nursing
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• v.12 no.1
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• pp.37-46
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• 2006

Purpose: The purpose of this study was to investigate the effects of an exercise program on physical function and quality of life of mastectomy patients. Method: This study was conducted from October, 2004 to June, 2005. The subjects consisted of 60 patients with breast cancer(30 each in the experimental and control groups). The subjects in the experimental group participated in an exercise program for 16 weeks. Evaluation was performed four times in both the experimental and control group. Results: The results revealed an increase in physical function in the experimental group including wrist circumstance, function of shoulder joint, stretching, and upper endurance. Also, an increase in function scales in quality of life were significantly higher in the experimental group than the control group. In addition subjective comments on how they felt after participating in the exercise program were good in the experimental group. Conclusion: The 16-week exercise program showed a large positive effect on physical function and quality of life of breast cancer patients after a mastectomy.

• BMB Reports
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• v.38 no.3
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• pp.266-274
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• 2005

High temperature requirement A (HtrA) and its homologues constitute the HtrA familiy proteins, a group of heat shock-induced serine proteases. Bacterial HtrA proteins perform crucial functions with regard to protein quality control in the periplasmic space, functioning as both molecular chaperones and proteases. In contrast to other bacterial quality control proteins, including ClpXP, ClpAP, and HslUV, HtrA proteins contain no regulatory components or ATP binding domains. Thus, they are commonly referred to as ATP-independent chaperone proteases. Whereas the function of ATP-dependent chaperone-proteases is regulated by ATP hydrolysis, HtrA exhibits a PDZ domain and a temperature-dependent switch mechanism, which effects the change in its function from molecular chaperone to protease. This mechanism is also related to substrate recognition and the fine control of its function. Structural and biochemical analyses of the three HtrA proteins, DegP, DegQ, and DegS, have provided us with clues as to the functional regulation of HtrA proteins, as well as their roles in protein quality control at atomic scales. The objective of this brief review is to discuss some of the recent studies which have been conducted regarding the structure and function of these HtrA proteins, and to compare their roles in the context of protein quality control.