• Journal of Korean Academy of Nursing
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• v.34 no.7
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• pp.1172-1183
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• 2004

Purpose: Ego-integrity in Erikson's stage theory is used frequently among health team members related to the care of the elderly and has specific meanings within the context of quality of life in later life. However, the concept of ego-integrity in the elderly has not been well articulated in the literature. This study was conducted clarify and conceptualize the phenomena of ego-integrity in the elderly. Method: A Hybrid Model of concept development was applied to develop a concept of ego-integrity, which included a field study carried out in Seoul, South Korea using in-depth interviews with old adults who were admitted as a right person for research subject according to attributes of ego-integrity analysed in the theoretical phase. Results: The concept of ego-integrity emerged as a complex phenomenon having meanings in several different dimensions which encompassed several attributes. Conclusions: Ego-integrity is a concept having needs that should be treated in a specific way and it is possible to enrich the meaning and methods to manage ego-integrity in nursing interventions for promoting quality of life so that its application may have effects that have positive impacts on the elderly's well being.

• Human Ecology Research
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• v.55 no.2
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• pp.181-192
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• 2017

This study investigated the relations between gratitude disposition and the ego-integrity of elderly men and women, focused on generativity and relatedness toward spouse, children, and friends as well as examined gender differences for each path. The subjects were 341 Korean elderly men and women over the age of 60 living in the Busan, Daegu, and Gyeongsang areas. Collected data were analyzed by PASW ver. 18.0 and AMOS 20.0 programs; in addition, frequency, Cronbach ${\alpha}$, Pearson's correlation coefficients, t-test and structural equation modeling were also used for data analysis. The results were as follows. First, the Korean elderly's gratitude disposition had a positive influence on ego-integrity and generativity as well as on relatedness toward spouse, children, and friends. In addition, the relatedness toward spouse, children, and friends of Korean elderly had direct influences on generativity and indirect influences on ego-integrity by mediating generativity. Second, it showed that there was a gender difference in the structural model that explained the relations among the variables. Korean elderly men's relatedness toward spouse, children, and friends had direct effects on generativity. However, in case of Korean elderly women, only relatedness toward children and friends had effects on generativity. The results were discussed in terms of elderly education.

• Journal of Korean Society of Water and Wastewater
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• v.18 no.6
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• pp.801-806
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• 2004

The pilot study was conducted to (i) investigate the ability of various membrane integrity monitoring methods to detect changes in membrane integrity during operation, and (ii) determine the impact of membrane damage on microbial removal by microfiltration. Two variations of air pressure hold tests were investigated for direct integrity monitoring: pressure decay (PD) and diffusive air flow (DAF) tests which are most commonly used integrity tests for microfiltration (MF) membranes. Both PD and DAF tests were sensitive enough to detect one damaged fiber out of 66,000 under field operaing conditions. Indirect integrity monitoring such as turbidity and particle counting, however, responded poorly to defects in membrane systems. Microbial challenge study was performed using both new and deliberately damaged membranes, as well as varying the state of fouling of the membrane. This study demonstrated that MF membrane with nominal pore size $0.2{\mu}m$ was capable of removing various pathogens including coliform, spore, and cryptosporidium, at the level required by drinking water regulations, even when high operating pressures were applied. A sharp decrease in average log reduction value (LRV) was observed when one fiber was damaged, emphasizing the importance of membrane integrity in control of microbial contamination.

• The Journal of Korean Academic Society of Nursing Education
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• v.21 no.4
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• pp.499-508
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• 2015

Purpose: This study was conducted in order to determine the extent of ego integrity and to confirm the association between the sense of ego integrity and integrated loneliness, social support, and social activities. Methods: For this study, 146 elderly people participated. The data was analyzed with SPSS/WIN 21.0, using descriptive statistics, t-test, ANOVA, correlation analysis, and hierarchical regression analysis. Results: In regards to differences between ego integrity according to general characteristics of subjects, there was a statistically significant difference in education (F=4.13, p=.007). In elderly living alone, ego integrity was significantly positive correlated with social support and social activities, but negative correlated with loneliness. These variables explained 43.2% of the sense of ego integrity. Conclusion: The study suggested that nursing programs and social activity programs designed to aid the elderly living alone must focus on reducing loneliness, as well as increasing social support and social activities, while taking education into consideration. Also, these programs should strive to build social support systems.

• Journal of the Korean Society of Safety
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• v.23 no.4
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• pp.7-12
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• 2008

This study proposes integrity evaluation method of weld zone in titanium using titanium distance amplitude characteristics curve(TDACC) and ultrasonic signals. For these purposes, the ultrasonic signals for porosity defects of weld zone in titanium are acquired in the type of time series data and echo strength. 4 lines in the DACC indicated damage evaluation standard of weld zone in titanium. The acquired ultrasonic signals agree fairly well with the measured results of reference block and sensitivity block(defect location, bean1 propagation distance, echo strength, etc). The proposed TDACC in this study agree fairy well with the measured results of weld zone in titanium(weld defects as porosity). The proposed TDACC in this study can be used for integrity evaluation of weld zone in titanium.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.12 no.2
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• pp.96-100
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• 2002

This study is aimed at prevention and countermeasurements of the mine wastewater pollution caused by a mineralized area using heavy metals. Objective of this study is selected to a high positive ion methathesis capacity of the environmental integrity character materials, as well as applied to the mine wastewater treatments. Also, the environmental integrity character materials is selected Kaolin. Silica, Zeolite, Fly ash. Thus, this environmental integrity character matters will be proved in the reduced heavy metals level and fine water quality of effluent.

• Journal of the Korean Society of Safety
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• v.18 no.1
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• pp.8-13
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• 2003

This study proposes integrity evaluation method of weld zone in rails using high precision distance amplitude characteristics curve(DACC) and ultrasonic signals. For these purposes, the ultrasonic signals for defects(porosity and crack) of weld zone in rails are acquired in the type of time series data and echo strength. 6 lines in the DACC indicated damage evaluation standard of weld zone in rails. The aquired ultrasonic signals agree fairly well with the mesured results of reference block and sensitivity block(defect location, beam propagation distance, echo strength, etc). The proposed high precision DACC in this study can be used for integrity evaluation of weld zone in rails.

• Transactions of the Korean Society of Pressure Vessels and Piping
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• v.13 no.1
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• pp.16-39
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• 2017

This paper reviewed and summarized the experimental studies conducted during last three decades to evaluate the structural integrity and to establish the acceptance criteria for piping system of nuclear power plants (NPPs) under seismic loading condition. These experimental studies contain the results of large-scale piping system tests under excessive seismic loading as well as standard specimen tests, simplified piping specimen tests, and piping components tests under simplified dynamic and cyclic loading. These would be useful as a basis for establishing integrity assessment procedure and acceptance criteria for piping systems of NPPs under beyond design basis earthquake (BDBE) conditions, and also could be used in planing the scope and direction of further related researches.

• Journal of the Korean Society for Railway
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• v.5 no.2
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• pp.55-60
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• 2002

This study proposes the post-processor simulator construction of ultrasonic signal for integrity evaluation of railway truck. For these purposes, the ultrasonic signals for defects(crack) of weld zone in frames are acquired in the type of time series data and echo strength. The detection of the natural defects in railway truck is performed using the characteristics of echodynamic pattern in ultrasonic signal. The constructed post-processor simulator agree fairly well with the measured results of test block(defect location, beam propagation distance, echo strength, etc). Proposed post-processor simulator construction of ultrasonic in this study can be used for the integrity evaluation of railway truck.

• Journal of the Korean Society for Railway
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• v.6 no.2
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• pp.81-86
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• 2003

This study proposes the neural network simulator for the integrity evaluation of weld zone in railway rails. For these purposes, the ultrasonic signals for defects(crack) of weld zone in frames are acquired in the type of time series data and echo strength. The detection of the natural defects in railway truck is performed using the characteristics of echodynamic pattern in ultrasonic signal. And then their applications evaluated feature extraction based on the time-frequency-attractor domain(peak to peak, rise time, rise slope, fall time, fall slope, pulse duration, power spectrum, and bandwidth) and attractor characteristics (fractal dimension and attractor quadrant) etc. The constructed neural network simulator agrees fairly well with the measured results of test block(defect location, beam propagation distance, echo strength, etc). The Proposed neural network simulator in this study can be used for the integrity evaluation of weld zone in railway rails.