• Transactions of the Korean Society of Pressure Vessels and Piping
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• v.19 no.1
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• pp.1-5
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• 2023

This paper describes a newly-developed analysis methodology in comprehensive vibration assessment program (CVAP) of reactor internals to develop a valid-prototype for the design of nuclear power plants. The new analysis methodology developed in this study will be confirmed through a scale model testing (SMT). Based on the measurements obtained from dynamic pressure transducers in the SMT, a new non-dimensional equation is developed to apply the forcing functions at reactor internals for the prototype. In addition to the new non-dimensional equation, a computational fluid dynamics(CFD) is used to develop the application of the hydraulic loads at reactor internals for the prototype.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.49 no.1
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• pp.75-84
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• 2021

The authors had presented two previous papers[1,2] on Helicopter/Rotorcraft develoment in Europe and US. Meanwhile, the next generation rotorcrafts, currently under development in US and Europe, have new configurations (tilt-rotor, coaxial, compound) of rotor-type vertical takeoff/landing rotorcrafts to overcome the disadvantages of traditional helicopters. For developing these new types of rotorcrafts, the upgraded conceptual design/comprehensive programs are required. In US and Europe, they are already developing new program tools with their technologies and database obtained during more than last half centuries. For us, many academia, research institutes and industrial engineers have experienced and developed core technologies on rotorcrafts (aerodynamics, structural analysis, flight dynamics, and noise analysis etc.) comparable to US and Europe during last couple of decades of developing helicopters and various configurations of rotorcrafts. In this paper, the pros and cons of conceptual design/comprehensive tools currently used in US and Europe have been summarized. Furthermore, the possibilities and problems to develope our own design and analysis tools have been studied.

• Korean Journal of Adult Nursing
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• v.15 no.2
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• pp.316-326
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• 2003

Purpose: The purpose of this study was the development of a comprehensive nursing intervention program for the client with acute lymph stasis and stage I lymphedema. Method: The Quasi-experimental design using a non-equivalent control group was used. The subjects were 22 stroke patients with lymph stasis in the control group and 23 patients in the experimental group. The complex physical therapy of Casley-Smith was carried out to the control group for 10 hours, and comprehensive nursing intervention for the experimental group was carried out for 60 minutes. The data for this study was gathered from Feb. 2002 until June 2002 and pertains knowledge about lymphedema, self-care for managing lymphedema, and circumferences of affected limbs. Data was analyzed by mean, standard deviation, ${\chi}^2-test$, and t-test. Result: The changes in knowledge about lymphedema, self-care practices, and circumference of affected limbs after nursing intervention did not show significant differences between control group and experiment group. Conclusion: It can be concluded that comprehensive nursing intervention had more efficiency than complex physical therapy in the treatment of edema for stroke patients because of it's simplicity and time saving. Thereby, the comprehensive nursing intervention program developed in this study would be a useful therapy for the clients with lymph stasis and early stage lymphedema.

• The Journal of Industrial Distribution & Business
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• v.10 no.7
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• pp.71-82
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• 2019

Purpose - This study aims to identify the priorities of medical service quality improvement by customer satisfaction characteristics and potential customer satisfaction improvement (PCSI) index based on the dualistic quality classification of Kano Model (1984) for Comprehensive Health Screeening Center in General Hospitals and Centers only for Comprehensive Health Screening and suggest a direction for future improvement. Research design, data, and methodology - Through advanced research on health screening medical service quality, this study set four service quality factors, including tangible, human, process and supportive factors, and 39 measurement items. Based on these items, the study used 117 questions, which consist of dualistic quality factors, customer satisfaction coefficients, positive and negative questions for PCSI index and questions for current satisfaction. 300 effective samples were collected for adults in their 20s who experienced health screening service in Seoul, Gyeonggi-do and Incheon within the past two years. Collected data were input in the quality evaluation duality table to categorize quality factors and calculate customer satisfaction coefficients by Timko(1993). The study also analyzed PCSI index in comparison with current satisfaction and identified priorities in quality improvement. Results - It was found that the most urgent factors to improve the quality in both groups were adequate waiting hours and emergency response for complications, which are process factors classified as unitary quality. It is urgently needed to improve the quality as the PCSI index was high in supportive factors (complaint response team) as attractive quality in Comprehensive Health Screening Center in General Hospitals and in process factors (prevention of infection) as unitary quality in Centers only for Comprehensive Health Screening. As the PCSI index was low in space use as a tangible factor, it was found that the current level can be maintained instead of improvement. Conclusions - To improve the health screening medical service quality, it is required to focus on process factors (adequate waiting hours, emergency response for complications, prevention of infection) and supportive factors (complaint response team) among service qualities perceived by users. It is proposed to ensure continuous efforts to manage and reinforce priorities as a direction for future improvement in health screening service.

• Journal of Korean Academy of Nursing
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• v.44 no.6
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• pp.672-681
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• 2014

Purpose: The purpose of this study was to investigate the effects of using a Coaching Program on Comprehensive Lifestyle Modification with pregnant women who have gestational diabetes. Methods: The research design for this study was a non-equivalent control group quasi-experimental study. Pregnant women with gestational diabetes were recruited from D women's hospital located in Gyeonggi Province from April to October, 2013. Participants in this study were 34 for the control group and 34 for the experimental group. The experimental group participated in the Coaching Program on Comprehensive Lifestyle Modification. The program consisted of education, small group coaching and telephone coaching over 4weeks. Statistical analysis was performed using the SPSS 21.0 program. Results: There were significant improvements in self-care behavior, and decreases in depression, fasting blood sugar and $HbA_1C$ in the experimental group compared to the control group. However, no significant differences were found between the two groups for knowledge of gestational diabetes mellitus. Conclusion: The Coaching Program on Comprehensive Lifestyle Modification used in this study was found to be effective in improving self-care behavior and reducing depression, fasting blood sugar and $HbA_1C$, and is recommended for use in clinical practice as an effective nursing intervention for pregnant women with gestational diabetes.

• Journal of Korean Public Health Nursing
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• v.30 no.2
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• pp.247-258
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• 2016

Purpose: The purpose of this study was to evaluate the effects of a comprehensive exercise program for the prevention of urinary incontinence (UI), frailty, and depression, as well as the promotion of physical function in community-dwelling elderly female living alone. Methods: A nonequivalent control group pretest-posttest design was employed. The participants were 76 vulnerable elderly female with a mild-to-moderate urinary incontinence. The exercise group completed 12 weeks of a moderate intensity, comprehensive exercise program. Descriptive statistics, independent t-tests and ANCOVA were used for data analysis with SPSS. Results: Upon the completion of the 12-week exercise program, significant improvements for UI symptoms (p=.001), timed up and go (p<.001), frailty (p=.006), and depression (p<.001) were observed, but not for hand grip strength (p=.053). Conclusion: The findings of this study indicate that the 12-week comprehensive exercise program for the prevention of urinary incontinence had positive effects on improving UI symptoms, physical function, levels of frailty and depression in elderly women living alone. More prolonged exercise programs with other types of exercise should be developed for these vulnerable elderly women, and future studies are encouraged to confirm the effect of the comprehensive exercise program in other settings.

• Journal of the Korean Institute of Rural Architecture
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• v.14 no.1
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• pp.45-56
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• 2012

This study focuses on design of supplementary evaluation indicator system geared towards comprehensive rearrangement projects in seats of township and town offices. In the first phase, it tries to reveal major problems and issues related to evaluation of the existing small town promotion projects. In terms of analytical tools, this study depends on the Delphi and AHP techniques. In specific, after three rounds of the Delphi methods, it extracts a series of alternative evaluation indicators derived from the AHP methods. It covers 5 major evaluation criteria, under which 18 independent items are hierarchically interconnected. It expects that these alternative evaluation indicators would contribute to selecting appropriate small town promotion projects. Next, applying these evaluation indicators, we examine couples of comprehensive rearrangement projects in seats of township and town offices. From the comparative contexts, we believe that the proposed alternative evaluation criteria would improve the general satisfaction level of key stakeholders in deciding the priority order of the small town promotion projects.

• Journal of East-West Nursing Research
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• v.27 no.2
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• pp.114-123
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• 2021

Purpose: This study investigated the influence of nurses' organizational communication and self-leadership on patient safety competence in comprehensive nursing care units of small and medium-sized hospitals. Methods: A descriptive design was used and self-reported questionnaires were used to collect data from 165 nurses in Seoul from February to March, 2020. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation coefficient, and multiple linear regression with SPSS/WIN 22.0 program. Results: A mean score of organizational communication was 3.20±0.49, self-leadership 3.58±0.50, and patient safety competency 4.01±0.49 out of 5. A significant positive correlation was found between patient safety competence, organizational communication and self-leadership. Self-leadership and combined ward explained 32% of the variance of patient safety competence (Adjusted R²=.32, p<.001). Conclusion: Patient safety competence in comprehensive nursing care units are associated with self-leadership and organizational communication. Systemic education to improve patient safety competence in small and medium sized hospitals should be implemented to promote organizational communication as well as self-leadership.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.25 no.7
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• pp.63-71
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• 2011

Due to the rapid development of digital technnology and informantion communication, in the IEC 61850 based substation automation system, the innovative paradigm shift is expected and also required in many substation-related jobs, especially in the device function test area Accordingly a common testing model which can simplify the complex contents of the SAS performance test performed by test engineers has been identified, that can overcome limitations of engineers' own testing knowledge and experience. Testing models and its design system for the comprehensive performance test of the Substation Automation System is developed and the result of the study is reported in this paper.

• Structural Engineering and Mechanics
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• v.31 no.3
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• pp.297-314
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• 2009

When the temperature of a structure varies, there is a tendency to produce changes in the shape of the structure. The resulting actions may be of considerable importance in the analysis of the structures having non-prismatic members. Therefore, this study aimed to investigate the modeling, analysis and behavior of the non-prismatic members subjected to temperature changes with the aid of finite element modeling. The fixed-end moments and fixed-end forces of such members due to temperature changes were computed through a comprehensive parametric study. It was demonstrated that the conventional methods using frame elements can lead to significant errors, and the deviations can reach to unacceptable levels for these types of structures. The design formulas and the dimensionless design coefficients were proposed based on a comprehensive parametric study using two-dimensional plane-stress finite element models. The fixed-end actions of the non-prismatic members having parabolic and straight haunches due to temperature changes can be determined using the proposed approach without necessitating a detailed finite element model solution. Additionally, the robust results of the finite element analyses allowed examining the sources and magnitudes of the errors in the conventional analysis.