• Transactions of the Korean Society of Automotive Engineers
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• v.10 no.4
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• pp.141-148
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• 2002

Repair were made for front pillar, center pillar and side-step panel for lightweight vehicles with head-on and 40% off-set collision of 15 km/h in a RCAR standard. The salt dilution was sprayed and the compression tests were performed for vehicles with and without anti-corrosional treatment after repair. After 764 hours of salt-dilt sprayed test without using anti-corrosion, the mean penetration depth fur corrosion was shown to be 58% of the thickness. The resulyed decrease in bending stiffness by 10∼20% can cause reduction of the residual life and crash-absorption capability for damaged vehicles. The corrosoin safety tests showed that the anti-corrosional treatment should be made to improve the safety characteristics for a or damaged car.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.48 no.1
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• pp.71-76
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• 2022

In this study, we investigated the antioxidant activity, wound healing, moisturizing and anti-pollution effects of fermented Citrus junos (FCJ) with Lactobacillus rhamnosus as a cosmetic material. For the anti-oxidative activities, the FCJ showed potent DPPH radical scavenging activities. In addition, FCJ increased cell migration compared to the untreated group in scratch-induced wound healing assay. It was confirmed that the amount of filagrin (FLG), a moisturizing factor, increased in FCJ. FCJ prevented the decrease in cell viability, stimulated by PM₁₀ at in vitro. Based on these results, it is believed that various effects of FCJ can provide a scientific basis for the development of cosmetic raw materials.