• Journal of Digital Convergence
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• v.17 no.8
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• pp.447-452
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• 2019

Modern people are investing a lot of time and economically in their appearance as a means of expressing their aesthetic desires. They have a lot of hair dyes that make up most of their appearance, but their hair damage is serious. Especially, they use hair dyes which are very popular among the hair cosmetics that make up most of their appearance, but their hair damage is serious. The purpose of this study is to investigate the hair tensile strength of hair with oxidative hair dye to induce styling while minimizing hair damage. The results showed that the Max. load, Max. stress, Max. elongation, break load, break stress, break elongation, maximum modulus and tangential modulus according to evaluation interval were significantly different between control and 8N-10N experimental groups. The maximum modulus and tangential modulus for the strain interval did not show tendency to increase or decrease constantly, although there was a difference between the control and experimental group. Therefore this study was conducted to investigate the correlation between hair loss and hair damage through the treatment of high grade oxidative hair dye, which is widely used in ield of industry. We want to provide application data.

• Journal of Digital Convergence
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• v.19 no.7
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• pp.21-32
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• 2021

This study focuses on the individual characteristics of consumers and creating shared value in relation to recent increasing value consumption. Specifically, it was intended to verify what socio-psychological variables of consumers affect value congruency and product purchase intentions in relation to cosmetics products based on creating shared value activities. In order to verify hypothesis, an online survey was conducted, and the main and mediate effects of the variables were verified through SPSS' Process Macro method. As a result of empirical analysis, the higher the ethical identity, altruism, and consumer effectiveness, the higher the value congruency. Altruism and consumer effectiveness had a positive impact on purchase intentions. We also find that value congruency has a significant mediating effect on the effect of socio-psychological variables on purchase intention. The results of this study provide practical values and implications for companies' need to emphasize consumers' consumption behavior as it can have a significant positive impact on society. It also suggests the importance of finding out what values consumers seek. In other words, this study can provide strategic implications for public relations plans when performing marketing activities by utilizing the values pursued by CSV in companies. Future research will provide strategic implications for promotional measures when marketing is carried out if the consumer's segment is further refined to verify the effectiveness of creating shared value.

• Journal of Digital Convergence
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• v.19 no.6
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• pp.225-232
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• 2021

Nowadays, opinion leaders influence the formation of public opinion on various issues in social network services. There has been a lack of research on the personal characteristics that inspire users to interact with opinion leaders and show intent to act. This paper verifies how the disposition of Facebook users' self-identity affects the quasi-social interaction with opinion leaders on Facebook and the intention to share information. As the perception and behavior of users on social media platforms differ depending on the type of issue, an online survey was conducted by classifying issue types into life culture and political sectors. Research found that personal identity had a significant positive effect on quasi-social interactions in the life culture and politics sectors, while group identity negatively affected quasi-social interactions. In addition, the intention to share information was confirmed to have a significant effect only in the life and culture areas of self-identity (social and group identity). Quasi-social interaction was confirmed to have a significant positive effect on all issue areas. The results of this study suggest the need to consider variations in opinion leader marketing strategies based on the types of self-identity of Facebook users in the future. In addition, the study shows that raising the level of quasi-social interaction at the corporate level without distinction of issue types can lead to effective results.

• Journal of the Korean Applied Science and Technology
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• v.38 no.3
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• pp.651-661
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• 2021

Eruca sativa, called arugula, is a perennial plant in the Brassicaceae family, an edible plant commonly used in Italian cuisine. To study as a cosmetic material application E. sativa was extracted with 70% ethanol (ES). Then ES was fractionated using n-hexane, chloroform, ethyl acetate, n-butyl alcohol and water (EHex, EEA, ECHCl₃, EBuOH and EDW). EEA showed mushroom tyrosinase inhibitory activity. ES, EEA and EBuOH showed inhibition of tyrosinase activity. As a result, ES is expected to have skin whitening efficacy. ES was applied to 0.05, 0.1% the toner and emulsion formulation to test the stability. The anti-microbial activity of eight bacteria and fungi including Staphylococcus aureus and Propionibacterium acnes which cause dermatitis and acne was evaluated. EEA showed effects in all of microorganisms. The toner and emulsion containing ES with 0.05, 0.1% were passed in the challenge test. At -20, 4, 25, 55 ℃ and daylight, there was no significant change on pH, viscosity for 4 months. However, emulsions had phase separation phenomenon at 55 ℃, so the base formulation needs improvement. In addition, through the skin penetration test, EEA penetrated 0.058% in 6 hr, predicting the clinical efficacy. This means that E. sativa can contribute whitening agent and the synergistic effect of preservatives.

• Journal of Industrial Convergence
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• v.19 no.4
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• pp.111-126
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• 2021

The purpose of this study was to investigate the effects of 12-week training on changes in physical fitness and cardiovascular factors for firefighters. For this purpose, 40 men in their 20s and 30s who agreed to participate voluntarily were recruited. They were divided into four groups: the firefighters' physical fitness test training group (hereinafter referred to as PT group), firefighters' physical fitness test and aerobic training group (hereinafter referred to as PT+AR group), firefighters' physical fitness test and both aerobic and anaerobic training group (hereinafter referred to as PT+CO group). Physical fitness factors (grip strength, back muscle strength, seated forward bend, standing long jump, sit-ups, 20-meter shuttle run), cardiovascular factors (total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, glucose, waist circumference, systolic blood pressure, diastolic blood pressure) and the relationship between Framingham Heart Risk Score and physical/cardiovascular factors were compared and analyzed, and the following conclusions were obtained. Aerobic training, anaerobic training, and combined training, including 12 weeks of firefighter physical examinations, all had positive effects on fitness and cardiovascular factors, which would be an appropriate way for firefighter examinees to improve physical strength and reduce the risk of cardiovascular disease.

• The Journal of the Convergence on Culture Technology
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• v.7 no.4
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• pp.181-187
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• 2021

This study conducted a survey of 118 men and women who obtained hair national technical certificate from June 28 to July 11, 2021, focusing on SPSS.The WIN 22.0 program was used. We would like to examine the effect of recognition of hair national technical certificates on job utilization and satisfaction with certificate acquisition, and the effect of job utilization on satisfaction with certificate acquisition at the hair salon site. First, the necessity and utility of recognition of hair national technical qualifications have been shown to affect job utilization. Second, it was found that the necessity and utility of recognition of hair national technical certificates affect the satisfaction of obtaining certificates. Third, it was found that the job utilization of the national technical certificate of hair affects the satisfaction of obtaining a certificate. As a result of the study it meets the requirements that can be put into the field, and it can be seen that usability in the hair salon site is important as an effect on the satisfaction of obtaining a certificate. Based on these conclusions, the following suggestions are made for subsequent studies, taking into account the limitations of the study. The point is that hairdressers who obtained national technical certificates participated in this study were limited to S regions. In the future, it is necessary to expand the size and region of the sample group in various ways and reflect a wide range of research overall.

• The Journal of the Convergence on Culture Technology
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• v.8 no.6
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• pp.849-854
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• 2022

In this study, the anti-inflammatory effect of supercritical carbon dioxide selective extracts, which extract decursin and decursinol angelate, the vital active ingredients of Angelica gigas Nakai, in high yield, was measured compared to that of ethanol extracts. To measure the anti-inflammatory effect, the production of nitric oxide(NO), an inflammatory mediator, and interleukin(IL)-6 and IL-8, inflammatory cytokines, was measured. NO production was measured by Griess assay on Raw 264.7 cells induced inflammatory response by lipopolysaccharide(LPS), and IL-6 and IL-8 production was measured by enzyme-linked immunoadsorbent assay(ELISA) on human keratinocyte cell line(HaCaT) cells induced inflammatory response by tumor necrosis factor(TNF)-α. The amount of NO production was suppressed outstandingly by the supercritical carbon dioxide extracts compared to the ethanol extracts. The amount of IL-6 and IL-8 production was increased by the ethanol extracts, whereas statistically significantly inhibited by supercritical carbon dioxide extracts at the concentration of 6.25 ㎍/mL(P<0.01). Through these results, we confirmed that the supercritical carbon dioxide selective extracts of Angelica gigas Nakai could be used as an anti-inflammatory cosmeceutical material to alleviate atopic dermatitis.

• Journal of Industrial Convergence
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• v.20 no.11
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• pp.177-184
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• 2022

This study verified the moderating effect of the influence of the reference group on the effect of socio-cultural attitude toward appearance and appearance complex on semi-permanent makeup satisfaction. To this end, a survey was conducted on 210 people who had undergone semi-permanent makeup and the results were obtained. The results were analyzed through the SPSS program, and the results are as follows. The recognition of the social importance of appearance among social-cultural attitudes toward appearance had a significant effect on satisfaction with the procedure. The self-conscious appearance complex had a significant effect on the satisfaction with the procedure. It was found that the influence of the reference group had a moderating effect on the effect of internalization, which is a social-cultural attitude toward appearance, on the satisfaction with the procedure. showed Both the appearance complex caused by others, the appearance complex, and the self-conscious appearance complex showed a moderating effect of the reference group effect in the effect on the satisfaction of semi-permanent procedures. Lastly, it was found that the higher the satisfaction with the semi-permanent procedure, the higher the number of additional treatment in the future.

• The Journal of the Convergence on Culture Technology
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• v.9 no.1
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• pp.635-648
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• 2023

In the current situation of social distancing due to COVID-19, the use of one-person hair salons, which are safer than franchise hair salons, is emerging again. One-man hair salons provide personalized services at high prices, so they can be said to be an industry that required high quality services than franchise hair salons. Despite these characteristics, many studies on hair salon services are focused on franchise hair salons. Therefore, this study was conducted through empirical analysis with the purpose of finding out how the service quality of a one-man hair salon, which required high service quality, affects behavioral intention through the coexistence of customer satisfaction and dissatisfaction. As a result of this study, it was found that the pleasure of consumers in one-person hair salons increases the intention to revisit the most. Those pleasure showed that it is more important to respond and empathize with consumers as well as its expertise of hair designers than the appearance of beauty salons. Through this study, the characteristics of a one-man hair salon were examined and significant results were found.

• Journal of Industrial Convergence
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• v.21 no.7
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• pp.51-63
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• 2023

This study aimed to verify the effects of a 4-week program of ankle-strengthening exercise and toe-taping walk exercise on the basic lower body strength and walking to examine the benefits of the two exercises. The subjects involved 30 women in their 20s enrolled in university A. The subjects were equally divided into three groups - ankle-strengthening exercise group, toe-taping walk exercise group, and control group. The subjects were instructed to massage and do ankle-strengthening exercises using a towel, massage ball, and CRT, for 60 minutes, 3 times a week. They also taped their hallux valgus using a kinesiology tape and walked for 20 minutes with white tape applied. To sum up, the 4-week ankle-strengthening exercise and toe-taping walk exercise were identified to have a partial statistical significance on the basic lower body strength (muscular strength, power, and balance) and walking (length of gait line, plantar pressure, and COP) of women in their 20s. Therefore, the study confirmed the effects of ankle-strengthening exercises and toe-taping walk exercise on the lower body exercise function, and it is considered that further studies should be conducted on more various effects of the exercises by subdividing them into different pain locations and orthomechanic findings.