• Journal of Digital Convergence
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• v.19 no.10
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• pp.357-365
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• 2021

This study is a descriptive survey research for identifing double mediating effect of ego-integrity and cultural competency and the moderated mediation effect of Wisdom on the relationship between basic pychological needs and successful aging. The participants were 211 elderly people aged at least 60 from June 2020 to March 2021. Data were collection by self-report questionnaire. Data was analyzed by Hayes' number 6 and 91 models using the SPSS/25.0 program and SPSS PROCESS MACRO. According to the study, the ego-integration and cultural competence were effected to double mediated in successful aging, and the ego-integration and cultural competence were effected to successful aging through moderated mediation by wisdom. Therefore, it is needed to develop welfare policy and strategy for the elderly to enhance ego-integration and cultural competence by effort to satisfy basic pychological needs and wisdom.

• Industry Promotion Research
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• v.6 no.2
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• pp.55-62
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• 2021

The number of single-parent families in South Korea increased since 2000, related to a sharp rise in the divorce rate of 50s and an increase in male mortality rates among those aged 40s-50s. Middle-aged single mothers experience a critical period realizing self-actualization needs, while being in the middle adulthood from the lifespan developmental perspective. In this respect, it is significant to study self-actualization of middle-aged single mothers through guided imagery and music (GIM) in order to provide them with psychological support. This study was conducted from September 2018 to June 2020, and the GIM sessions were conducted at least 10 times. Four participants were selected among the middle-aged single mothers. The imagery experiences of participants in the GIM sessions were classified into four sub-elements: physicalness, emotion, memory, and sense. Within those sub-elements, eight semantic units were categorized into 46 elements. Finally, 152 semantic units were derived. Moreover, the self-actualization which participants experienced through GIM presented three archetypal images: shadow, persona, and the self. In the GIM sessions, experiences of putting their negative emotions associated with family into words and changing passive self-imagery into active one enabled participants to bring the shadow into their consciousness, there by recognizing their positive and bright internal self. Furthermore, participants could map that their current status as people marginalized by siblings and parents, enraged and holding double standards for others, was suppressed by their 'good daughter' and 'religious' personas. This realization lead them to realize and restore their persona. The use of GIM in the study allowed participants to elicit re-experiences of the negative events, while experiencing various imagery and music. This process helped participants achieve self-actualization.

• Journal of the korean academy of Pediatric Dentistry
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• v.35 no.2
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• pp.216-224
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• 2008

The purpose of this study was to evaluate the effectiveness of fissurotomy and double application time of acidic primer of self-etching adhesive system of acid treatment on enamel surfaces for prevention of microleakage of pit and fissure sealants. The microleakage of pit and fissure sealants was evaluated by measuring the penetration depth of methylene blue solution. Specimens were divided by 4 groups according to the method of treatment. Group I: 35% phosphoric acid etching, 20 seconds. Group II: Priming with self-etching primer, 20 seconds. Group III: Priming with self-etching primer, 40 seconds. Group IV: Priming with self-etching primer, 20 seconds, after fissurotomy. The etched pattern produced on enamel was observed using a scanning electron microscope. Obtained data were analysed statistically using Kruscal-Wallis test followed by Mann-Whitney test for comparison of groups. The results are as follows: 1. Microleakage scores of group IV priming with self-etching primer 20 seconds after fissurotomy was the lowest. 2. Microleakage scores between group II and group III were not shown significant difference. 3. Enamel for 20 seconds etching with 35% phosphoric acid was observed the most effective etching pattern. And the etching pattern on the fissure enamel with self-etching adhesive 20 seconds after fissurotomy was more prominent than group II, III only using self-etching primer.

• Journal of Korea Multimedia Society
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• v.15 no.8
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• pp.1048-1058
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• 2012

This paper proposes the DDMPF(Distributed Data Management Protocol using FAT) which prevents data loss and keeps the security of self-organized storages by comprising a client, a storage server, and a verification server in clouding environment. The DDMPF builds a self-organized storage server, solves data loss by decentralizing the partitioned data in it in contrast to the centralized problem and the data loss caused by the storage server problems of existing clouding storages, and improves the efficiency of distributed data management with FAT(File Allocation Table). And, the DDMPF improves the reliability of data by a verification server's verifying the data integrity of a storage server, and strengthens the security in double encryption with a client's private key and the system's master key using EC-DH algorithm. Additionally, the DDMPF limits the number of verification servers and detects the flooding attack by setting the TS(Time Stamp) for a verification request message and the replay attack by using the nonce value generated newly, whenever the verification is requested.

• Composites Research
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• v.29 no.4
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• pp.179-185
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• 2016

A self-charging supercapacitor is constructed through simple integration of the energy storage and photo exited materials at the photo electrode. The large band gap of $NiO/Fe_3O_4$ heterostructure generates photo electron at the photo electrode and store the charges through redox mechanism at the counter electrode. Sulfanilic acid azocromotrop/reduced graphene oxide layer at the photo electrode trapped the photo generated hole and store the charge by forming double layer. The solar supercapacitor device is charged within 400 s up to 0.5 V and exhibited a high specific capacitance of ~908 F/g against 1.5 A/g load. The solar illuminated supercapacitor shows a high energy and power density of 33.4 Wh/kg and 385 W/kg along with a very low relaxation time of ~15 ms ensuring the utility of the self charging device in the various field of energy storage and optoelectronic application.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.17 no.3
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• pp.165-182
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• 2022

This study focused on whether employees' perceived leader's creativity has a significant effect on employees' job satisfaction and innovative behavior. In addition, this study analyzed the mediating effect of positive psychological capital and creative self-efficacy in the relationship between perceived leader creativity and employee satisfaction with the job or innovation behavior, and analyzed the moderated mediating effect of team cohesion. This study conducted confirmatory factor analysis and path analysis for each factor using the measurement tool verification method using the SmartPLS 3.0 structural equation model, and empirically analyzed the research model. As a result, it was found that the creativity of employees' perceived leaders did not directly significantly affect employees' job satisfaction and innovation behavior. However, it was found that positive psychological capital significantly mediated the relationship between perceived leader creativity and job satisfaction or innovative behavior. In addition, positive psychological capital and creative self-efficacy have a complete double-mediation relationship between the employees' perceived leader's creativity and employees' innovative behavior. However, positive psychological capital and creative self-efficacy don't have a double-mediation relationship between the employee's perceived leader's creativity and employees' job satisfaction. Finally, Team cohesion was found to moderate the relationship between perceived leader creativity, positive psychological capital (or creative self-efficacy). However, the research model that the moderated mediating effect of team cohesion on the relationship between leader's creativity, the mediating variables(positive psychological capital and creative self-efficacy), and job satisfaction (or innovative behavior) was significant only for groups with high team cohesiveness. This study examined the needs of the times for the importance of creativity of perceived leaders and analyzed the relationship between factors influencing job satisfaction and innovation behavior of organizational members. The study is meaningful in that it suggested a plan to establish a specific organizational strategy to enhance positive psychological capital and creative self-efficacy.

• The Journal of the Korea Contents Association
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• v.20 no.1
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• pp.259-270
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• 2020

The purpose of this study was to examine the mediating effects of mattering and unconditional self-acceptance in the relationship between college student socially-prescribed perfectionism and social anxiety. For this purpose, a questionnaire was conducted for students in college and a total of 408 copies were used for analysis. The instruments used in the measurement were socially prescribed perfectionism scale(HFMPS), social anxiety scale, mattering scale, and unconditional self-acceptance. The collected data were analyzed by descriptive statistics and correlation analysis using SPSS 21.0, and the structural equation model and mediating effects were verified using Mplus 7.0. The results of the study are as follows. First socially-prescribed perfectionism showed a positive correlation with social anxiety but negative correlation with mattering and unconditional self-acceptance. And there was a positive correlation between mattering and unconditional self-acceptance but negative correlation with social anxiety. Second, the mediating effect of mattering was confirmed in the relationship between socially-prescribed perfectionism and social anxiety. Third, the mediating effect of unconditional self-acceptance was confirmed in the relationship between socially-prescribed perfectionism and social anxiety. Fourth, the effect of double mediation of mattering and unconditional self-acceptance was confirmed in relation to socially-prescribed perfectionism and social anxiety in college students. Based on these findings, the implications of the study were presented and the limitations of the study and suggestions for further research were discussed.

• Journal of People, Plants, and Environment
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• v.22 no.2
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• pp.119-126
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• 2019

This study was conducted to examine effects of community gardening on job stress and job satisfaction experienced by public officials in general administration working in a 24-hour shift. The subjects were public officials at the Center for Missing Children in the Department of Women and Adolescents at the National Police Agency. The center receives initial reports of disappearance of missing children, the elderly with dementia, and people with intellectual disabilities, sends out the report to each police station, and clears the report after the missing individual is found. Twelve public officials working at the center in a double shift (full day off after a night shift, four-day interval) were grouped into four teams and total 11 of them participated in the experiment. They engaged in autonomous community gardening activities such as sowing seeds, cultivating plants, harvesting, or cooking in the workplace for five weeks from August 19 to September 22, 2018. The findings were as follows. After five weeks of autonomous gardening activities, job stress of the subjects decreased significantly. Their mean scores of job satisfaction and organizational commitment under organizational effectiveness showed a significant increase after the activities. Finally, there were significant differences in their self-esteem after participating in the gardening activities in the workplace. These results suggest that gardening activities in the workplace can help to manage job stress and quality of work life for shift workers.

• Macromolecular Research
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• v.17 no.9
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• pp.666-671
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• 2009

Water repellent elastomeric surfaces were fabricated successfully on SBS/MWNT nanocomposites films using the breath figure method and subsequent thermal treatment. The uniformly dispersed CNTs were found to play significant roles in tuning the size and ordering of the macroporous morphology at the nanocomposite surface as well as enhancing the mechanical properties of nanocomposites. In particular, the CNTs dispersed in a nanocomposite solution retarded the coarsening process of aqueous droplets during the breath figure process and decreased the pore size in the finally fabricated film. The water contact angle measurement showed that the double-scale structure comprised of self-organized macropores and surface the roughness induced by a thermal treatment produced a highly water-repellent nanocomposite surface.

• Nuclear Engineering and Technology
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• v.49 no.6
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• pp.1269-1286
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• 2017

This paper presents a newly developed resonance self-shielding method based on Tone's method in $APOLLO3^{(R)}$ for fast and thermal reactor calculations. The new method is based on simplified models, the narrow resonance approximation for the slowing down source and Tone's approximation for group collision probability matrix. It utilizes mathematical probability tables as quadrature formulas in calculating effective cross-sections. Numerical results for the ZPPR drawer calculations in 1,968 groups show that, in the case of the double-column fuel drawer, Tone's method gives equivalent precision to the subgroup method while markedly reducing the total number of collision probability matrix calculations and hence the central processing unit time. In the case of a single-column fuel drawer with the presence of a uranium metal material, Tone's method obtains less precise results than those of the subgroup method due to less precise heterogeneous-homogeneous equivalence. The same options are also applied to PWR UOX, MOX, and Gd cells using the SHEM 361-group library, with the objective of analyzing whether this energy mesh might be suitable for the application of this methodology to thermal systems. The numerical results show that comparable precision is reached with both Tone's and the subgroup methods, with the satisfactory representation of intrapellet spatial effects.