• Fashion & Textile Research Journal
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• v.23 no.2
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• pp.174-185
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• 2021

The purpose of the study is to establish sustainability evaluation items that can be applied to enhance clothing sustainability practice. The sustainability evaluation items related to clothing by product category, use, and disposal were derived through literature review. In order to evaluate the validity of the derived evaluation items, preliminary survey and two questionnaires were conducted for experts, and the importance and the possibility of change were measured. As a result, 39 evaluation items were constructed. Among the 39 evaluation items, 26 items related to the use and disposal were evaluated for 10 weeks in the 20s and 30s female consumers in terms of practice. The results of the study are as follows: First, items that have a high degree of importance and possibility of change are the items that can minimize resource saving, recycling, and the emission of harmful substances. Second, the participants' perceptions, attitudes, and outcomes of practicing the evaluation items of the use and disposal phase were proved to be positively affected, and the possibility of reducing resource saving and environmental impacts was proved. The clothing sustainability practice played a positive and developmental role in real life, while changing from small things to pursuing newness. The vagueness of sustainability was changed to specific perceptions and behaviors through the practice of the evaluation items.

• Explosives and Blasting
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• v.39 no.4
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• pp.12-21
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• 2021

In this study, a series of FEM numerical analyses was conducted to compare the resistance performance of concrete drainage protection facility to blast vibration. Two different types of ㅁ-shaped protection facility, which are suggested in the study, were compared to the traditional ㄷ-shaped one. In the analyses, the vibration resistances of the three protection facilities were evaluated under the varying conditions of the standoff distance from the explosion and charge weight per delay. As a result, it was found that the two proposed types of drainage protection facilities are superior to the traditional one in the vibration reduction performance.

• Journal of Veterinary Clinics
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• v.39 no.2
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• pp.75-80
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• 2022

An 11-year-old male Rex rabbit (Oryctolagus cuniculus) had a rectal prolapse induced by a polypoid mass. The mass was highly vascularized with a cauliflower-like appearance. Anorectal papilloma was suspected, and fine needle aspiration cytology showed eosinophilic inflammation. After surgical removal of the polyp, postoperative care was given, such as systemic antibiotics and analgesics. In the re-examination, the rabbit was resolved, and there were no complications. Histopathological examination of the removed polyp indicated chronic eosinophilic proctitis to be the cause of the inflammatory condition of the protruding rectal polyp.

• Journal of East-West Nursing Research
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• v.29 no.1
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• pp.39-48
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• 2023

Purpose: This study aimed to identify the influences of parental neglect, national identity, and self-resiliency of multicultural adolescents on school adaptation. Methods: Participants are multicultural adolescents in the 4th year (2014) of the multicultural adolescents panel survey. Data were analyzed by descriptive statistics, independent t-test, ANOVA, pearson's correlation coefficient, and stepwise multiple regression analysis using SPSS 22.0 program. Results: Self-resiliency was the most influential factor on school adaptation of multicultural adolescents, followed by parental neglect, and national identity, mother's Korean reading ability, multicultural adolescents' speaking ability, city size, mother's education, and mother's speaking ability. Conclusion: Multicultural families who had an experience of parental neglect should be selected and those parents need to be educated about the appropriate parenting method to improve the school adaptation of multicultural adolescents. In addition, the school adaptation improvement program should be developed and provided to strengthen the national identity and self-resiliency of multicultural adolescents.

• Tribology and Lubricants
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• v.39 no.3
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• pp.118-122
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• 2023

In our study, we develop a finite element model based on Archard's wear law to predict the cumulative wear and the evolution of the tool profile in friction stir welding (FSW) applications. Our model considers the rotational and translational behaviors of the tool, providing a comprehensive description of the wear process. We validate the accuracy of our model by comparing it against experimental results, examining both the predicted cumulative wear and the resulting changes to the tool profile caused by wear. We perform a detailed comparison between the predictions of the model and experimental data by manipulating non-dimensional coefficients comprising model parameters, such as element sizes and time increments. This comparison facilitates the identification of a specific non-dimensional coefficient condition that best replicates the experimentally observed cumulative wear. We also directly compare the worn tool profiles predicted by the model using this specific non-dimensional coefficient condition with the profiles obtained from wear experiments. Through this process, we identify the model settings that yield a tool wear profile closely aligning with the experimental results. Our research demonstrates that carefully selecting non-dimensional coefficients can significantly enhance the predictive accuracy of finite element models for tool wear in FSW processes. The results from our study hold potential implications for enhancing tool longevity and welding quality in industrial applications.

• The Journal of Industrial Distribution & Business
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• v.14 no.1
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• pp.39-47
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• 2023

Purpose: This research aims at determining institutional commitment impact and how it influences job satisfaction. It aims at bridging the gap in research on the study topic. Its major focus is on work content and institutional commitment as the main variables and how they impact companies and employees. Research design, data and methodology: The current research has chosen the literature content approach and it is a reporting guideline for methodical assessments. It offers a consistent approach for conducting and reporting these types of studies, which can help to improve the quality and transparency. Results: The finding of the current research has showed that workers in social companies need jobs with higher values and responsibilities, company policy, among other factors. Workers' organization commitment towards social enterprise for improving workers' job satisfaction factors will include affective commitment, continuous commitment, normative commitment, and the commitment profile of the organization. Conclusions: This research finally insists that the findings of the current research would aid in enhancing employee knowledge and understanding of work satisfaction, as well as the essence of institutional commitment. Most employees lack adequate knowledge of the implications of job satisfaction not forgetting their personal needs as indicated in the individual need model.

• Journal of the Korean Society of Safety
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• v.39 no.2
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• pp.28-37
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• 2024

The recent surge in the production and handling of hazardous materials in Korea necessitates developing and implementing robust emergency response plans. These plans are crucial in safeguarding the well-being of workers and residents in the event of an incident. The consequence analysis methodology outlined in the KOSHA guidelines provides a foundation for designing emergency response plans in the event of chemical accidents. However, the consequence analysis is evaluated based on assumed accident cases or worst-case scenarios. Consequently, the emergency response plan based on the consequence analysis may overestimate the damage area, complicating rescue efforts and unnecessarily increasing costs. More information and parameters become available after an accident, enabling more accurate consequence analysis. This implies that the results of consequence analysis based on this detailed information provide more realistic results than those based on assumed accidents. This study attempts to optimize the resource allocation and cost-effectiveness of emergency response plans for chemical accidents. Existing procedures and manuals are revised to elucidate the proposed model and conduct real-time consequence analysis. The existing emergency response plan is compared to verify the proposed model's efficacy. The obtained results indicate that the proposed model can exhibit better performance.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.9
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• pp.1391-1398
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• 2010

Red ginseng marc (RGM) was fermented by the solid-state fermentation using Bacillus subtilis HA to produce biologically active compounds. The red ginseng marc fermented without mugwort possessed higher mucilage content (11.5%) and proteolytic activity (277.5 unit/g). The RGM fermented with 3% mugwort showed lower production of mucilage and protease activity whereas higher tyrosine content (581.3 mg%) and consistency index ($8.8\;Pa{\cdot}s^n$). The mucilage produced from fermented RGM contained $\gamma$-PGA with 1,100 kDa of molecular weight, and its yield was 15.9 g/kg. 70% ethanol extract from the RGM fermented with 3% mugwort had the highest DPPH radical scavenging effect ($IC_{50}$ value of 0.57 mg/mL), and the water extract showed the highest ABTS radical scavenging effect, indicating $IC_{50}$ value of 1.24 mg/mL. Overall, the RGM fermented by B. subtilis HA with mugwort contained various biologically active compounds having antioxidant effects.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.6
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• pp.872-879
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• 2010

Textured vegetable protein (TVP) was fermented by the solid-state fermentation using Bacillus subtilis HA and biologically active compounds were produced by fermentation for 7 days. The longer fermentation time resulted in the color change of fermented TVP with strong dark red and yellow color. Melanoidin production rapidly increased until fermentation for 48 hr, but did change afterwards. The 70% ethanol extract of TVP fermented for 24 hr showed higher DPPH radical scavenging effect with $IC_{50}$ of 0.99 mg/mL but longer fermentation did not increase its activity. Also, 70% ethanol extract of TVP fermented for 72 hr indicated higher ABTS radical scavenging effect with $IC_{50}$ of 1.68 mg/mL. Consistency index in TVP fermented for 48 hr was the highest values with 7.89 $Pa{\cdot}s^n$. Viscoelastic properties of TVP fermented for 48 hr were maximally enhanced, and viscous value (G") is higher than the elastic value (G'). The $\gamma$-polyglutamic acid (PGA) content was increased by increasing fermentation time with 37.72% of $\gamma$-PGA at 168 hr. However, levan content and molecular weight of PGA were decreased with increasing fermentation time from 7.83% to 3.91% and 1649.3 kDa to 1286.8 kDa, respectively.

• The Korean Journal of Pesticide Science
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• v.6 no.1
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• pp.36-41
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• 2002

Characteristics of regrowth and starch degradation in perennial weed rhizomes were investigated in a greenhouse. Cyperus serotinus started regrowth at 24 days after treatment of 1.25 g ai/ha of pyrazosulfuron-ethyl. The regrowth of Sagittaria trifolia, Eleocharis kuroguwai, and S. pygmaea required $30{\sim}39$ days, and Potamogeton distinctus regrew at 55 days after treatment of 1.25 g ai/ha of pyrazosulfuron-ethyl. However, all of 5 perennial weeds hardly regrew until 45 days after treatment more than 5 g ai/ha of pyrazosulfuron-ethyl. Regrowth of C. serotinus 4-node rhizomes was 2 times higher than 2-node rhizomes, and $1{\sim}1.5g$ of E. kuroguwai large tubers regrew faster than $0.3{\sim}0.5g$ of small tubers treated with bensulfuron-methyl. Regrowth of C. serotinus was enhanced with delayed application of bensulfuron-methyl, however, 2-leaf stage of E. kuroguwai plants regrew better than 3 leaf stage of plants when treated with equal volume of bensulfuron-methyl. The critical periods of S. trifolia and E. kuroguwai growth depending upon the rhizome detachment were 12 and 18 days after sprouting, respectively. The starch stacked in the S. trifolia and E. kuroguwai tubers were exhausted at 18 and 27 days after sprouting, respectively. The highest level of sugar contents was showed at 9 days after sprouting in S. trifolia, and 18 days after sprouting in E. kuroguwai.