본 연구는 뷰티라이프스타일이 중년여성의 삶의 질에 미치는 영향에 대하여 알아보는 것이다. 본 연구를 위하여 서울, 경기, 광주, 세종, 대전에 거주하는 35세-65세의 중년여성 417명을 대상으로 2021 년 2월 27일부터 2021년 3월 14일까지 실시하였다. 연구의 결과로 중년여성의 뷰티라이프스타일에 따른 삶의 질의 상관관계는 과시추구형, 외모추구형, 실용추구형, 유행추구형순으로 정의 상관관계가 나타났다. 또한 중년여성의 삶의 질에는 뷰티라이프스타일의 실용추구형과 과시추구형이 영향을 미치는 것으로 나타 났다. 따라서 중년여성의 삶의 질에 매우 긍정적인 영향을 줄 수 있는 실용추구형과 과시추구형을 위한 경 제성과 고급화를 추구하는 양가적 관점에 기인한 맞춤형 커뮤니케이션의 정보와 뷰티제품의 마케팅 전략 이 필요하다고 사료된다.

The efficacy of air-polishing on subgingival debridement, as compared to scaling and root planning (SRP), was evaluated clinically and microbiologically. Fifteen patients diagnosed as chronic periodontitis, and having single-root tooth over 5 mm of pocket depth symmetrically in the left and right quadrant, were investigated. Subgingival debridement was performed by SRP and air-polishing. The results were evaluated and compared clinically and microbiologically. Probing pocket depth (PPD), bleeding on probing (BOP), relative attachment level (RAL) and change of gingival crevicular fluid (GCF) were assessed before treatment, and at 14 and 60 days after treatment. Microbial analysis was done pre-treatment, post-treatment, and at 14 and 60 days after treatment. Results of air polishing showed that post treatment, the PPD and BOP decreased, and attachment gain was observed. There was no clinical difference when compared to SRP. The volume of GCF decreased at 14 days, and increased again at 60 days. Compared to SRP, there was a statistical significance of the volume of GCF at 60 days in air-polishing. In the microbial analysis, high-risk bacteria that cause periodontal disease were remarkably reduced. They decreased immediately after treatment, but increased again with the passage of time. Thus, our results show that subgingival debridement by air-polishing was effective for decrease of pocket depth, attachment gain, decrease of GCF and inhibition of pathogens. Further studies are required to compare air-polishing and SRP, considering factors such as degree of pocket depth and calculus existence.

A leisure ship has a stand-alone type power system, and a generator is in use on this condition. But the generator cannot be operated in condition of leisure activity, ocean measurement and etc, because of environment and noise. Recently, renewable energy system is connected with power system of the leisure-ship for saving energy. The renewable energy system can not supply the stable power to leisure-ship because power generation changes according to weather condition. And most of the leisure ship is operated without methodical power management system. This study's purpose is to develop SPMS(Smart Power Management System) algorithm using the renewable energy (photovoltaic, wind power and etc.). The proposed algorithm is able to supply stable the power according to operation mode. Furthermore, the SPMS manages electric load (sailing and communication equipment, TV, fan, etc.) and reduces operating times of the generator. In this paper, the proposed algorithm is realized and executed by using LabVIEW. As a result, the hour for operating the generator is minimized.