편백 피톤치드가 Candida albicans에 미치는 영향에 대한 연구

강수경,어규식,전양현,홍정표,Kang, Soo-Kyung,Auh, Q-Schick,Chun, Yang-Hyun,Hong, Jung-Pyo 대한안면통증구강내과학회 2010 Journal of Oral Medicine and Pain Vol.35 No.1

Phytoncide, essential oil of trees, has microbicidal, insecticidal, acaricidal, and deodorizing effect. The present study was performed to examine the effect of phytoncide on Candida albicans, which is a commensal colonizer of the mucous membranes but has become an opportunistic pathogen. C. albicans was incubated with or without phytoncide extracted from Hinoki (Chamaecyparis obtusa Sieb. et Zucc.; Japanese cypress) and then changes were observed in its optical density, cell viability and morphology. As concentrations of phytoncide added to the culture medium increased, optical density and cell viability of C. albicans decreased. Minimum inhibitory concentration of phytoncide for C. albicans was observed to be 0.25%, and minimum fungicidal concentration was 0.5%. Numbers of morphologically atypical cells with electron-dense cytoplasm and granules and increased with increasing concentration of the phytoncide. At higher concentrations of phytoncide, compartments and organelles in the cytoplasm became indistinguishable. The overall results indicate that the phytoncide used for this study has a strong antimicrobial activity against C. albicans. Therefore, the phytoncide may be used as a candidate for prevention and therapeutic agent against oral candidiasis.

구강병원균에 대한 편백 피톤치드의 항균작용

강수경,신미경,어규식,전양현,홍정표,Kang, Soo-Kyung,Shin, Mi-Kyoung,Auh, Q-Schick,Chun, Yang-Hyun,Hong, Jung-Pyo 대한안면통증구강내과학회 2007 Journal of Oral Medicine and Pain Vol.32 No.1

Plant extract has attracted considerable interest in oral disease therapy. The present study was performed to observe the antibacterial effect on cariogenic Streptococcus mutans GS5 and Streptococcus sobrinus 6715, and periodontopathic Actinobacillus actinomycetemcomitans Y4 of phytoncide from Chamaecyparis obtusa Sieb. et Zucc employing the measurement of optical density, viable cell counts, and antibiotic sensitivity. The results were as follows: 1. Minimum inhibitory concentration of the phytoncide for S. mutans, S. sobrinus, and A. actinomycetemcomitans was observed to be 0.5%, 1%, and 0.2%, respectively. 2. Minimum bactericidal concentration of the phytoncide for S. mutans, S. sobrinus, and A. actinomycetemcomitans was determined to be 0.5%, 2%, and 0.2%, respectively. 3. The bacteria exposed to the phytoncide become more sensitive to antibiotics. The phytoncide enhanced significantly antibacterial activity of ampicillin against S. mutans and S. sobrinus. It also increased significantly the activity of penicillin and amoxicillin against S. sobrinus. In contrast, the phytoncide augmented the activity of amoxicillin and cefotaxime against A. actinomycetemcomitans but the increase was not statistically significant. The overall results indicate that phytoncide from Chamaecyparis obtusa Sieb. et Zucc used for this study has a strong antibacterial activity against cariogenic and periodontopathic bacteria and that it also has permeabilizing effect on certain antibiotics against these bacteria. Therefore, the phytoncide may be used as a candidate for prevention and therapeutic agent against oral infectious disease including dental caries and periodontal disease.

움직임 보상 보간 기법의 성능평가

강수경(Soo Kyung Kang),이창우(Chang Woo Lee) 한국방송·미디어공학회 2010 한국방송공학회 학술발표대회 논문집 Vol.2010 No.7

분산 비디오 부호화 시스템(distributed video coding : DVC)에서는 기존의 비디오 부호화 시스템과는 달리 부호기가 아닌 복호기에서 움직임 추정 연산을 함으로써 부호기의 복잡성을 크게 줄일 수 있다. DVC 시스템의 복호기에서 생성되는 부가정보(side information : SI)는 전체 DVC 시스템의 성능에 큰 영향을 미친다. DVC 시스템의 복호기에서 SI 정보를 생성하기 위해서 움직임 보상 보간(motion compensated interpolation : MCI) 기법이 많이 사용되는데 본 논문에서는 다양한 MCI 기법들의 성능을 분석한다.

국내 대학의 미용관련학과 및 인력 배출 현황 분석

강수경 ( Soo Kyung Kang ),최근희 ( Keun Hee Choi ) 한국미용학회 2012 한국미용학회지 Vol.18 No.6

This study is aimed at presenting the basic data which enables us to decide and put in practice the policy of professional beauticians training by surveying the domestic beauty-related universities and colleges with graduated beautician status. And this study has categorized 2-year colleges and universities because of their representation of beauty-related school course classifying into small groups such as curriculum, school subjects, new students and graduates, the percentage of employment and the ratio of students to a higher school in recent 3 years. This survey restrictively includes 2-year colleges and 4-year universities. University ALIMI site operated by KCUE(Korean Council for University Education) and each university homepage are utilized for this study. The study result as follows; 1. 31 universities with 36 courses of study out of 196 universities and 99 colleges with 119 courses of study out of 141 2-year colleges have beauty-related departments. 2. Both 4-year and 2-year colleges compose the integrated beauty-related subjects and the courses of study after 2010 have specialized, classified and branded its subjects 3. New students slightly increase in 4-year universities and also slightly decrease in 2-year colleges. 4. The percentage of employment is average 55% from 4-year universities and 41% from 2-year colleges. In conclusion, the development of beauty industry is originated only from the training personnel with professional knowledge and beauty-related education institutes play a pivotal role in their training. To accomplish the quality of training, we need to centralize our training curriculum, vitalize the beauty market to employ graduated students, connects education with beauty industry into the better and stabler job market. This study suggest that we need multilateral policy to set up and backup.

BTX 혼합가스 노출시 광결정-PDMS 기반 색 변화 센서의 감지능

강수경(Soo-Kyung Kang),조경숙(Kyung-Suk Cho),장형관(Hyung-Kwan Chang),박정열(Jungul Park) 대한환경공학회 2021 대한환경공학회 학술발표논문집 Vol.2021 No.11

피부상태 관련 변인에 대한 연구물의 질적 메타분석

강수경 ( Soo Kyung Kang ) 한국미용학회 2011 한국미용학회지 Vol.17 No.3

In this study, a meta-analysis was made of 23 papers on skin conditions-related variables. The followings show the results. First, 13(56.65%) out of 23 papers were masters` theses; 13(56.5%) were conducted on university students; 20(87.05%) on women. Second, in 13(56.5%) out of 23 papers the skin test was performed by the use of equipments; in 10(43.5%) it was performed by subjective evaluation. The number of subjects was significantly more in subjective evaluation than in mechanical evaluation. Mechanical evaluation was adopted not only in all the doctoral theses but in 9(69.2%) out of 13 theses published in 2006 and afterwards. Third, in relation to independent variables, 18 theses (78.3%) adopted the eating habits; 14(60.9%) favorite foods; 12(52.2%) exercise; 10(43.5%) skincare habits and stress; 9(39.1%) slumbers. Resultantly, ultra violet 4(100%), in 17 theses (94.4%) eating habits showed the highest significance level; in 8(80.0%) skin care habits; in 10(71.4%) favorite foods; in 8(66.7%) exercise; in 6(60.0%) stress; in 5(55.6%) slumbers. Fourth, in eating habits, Vitamin, regular mealtime and water ingestion were adopted as positive factors for skin conditions. On the other hand, heavy meals, spicy, salt, instant and high-calorie foods were adopted as negative factors for skin conditions. Eight hours of slumber and regular exercise were adopted as positive factors, but ultra violet, stress, excessive coffee intake, smoking and drinking were adopted as negative factors. In relation to skin care habits, specialists` care, right care and regular massages were adopted as positive factors.

중년여성의 안면 피부결 상태와 관련요인에 대한 연구

강수경 ( Soo Kyung Kang ) 한국미용학회 2004 한국미용학회지 Vol.10 No.2

피부미용 산업체 유형에 따른 현장 직무 중요도와 선행학습 필요도 차이

강수경 ( Soo Kyung Kang ) 한국미용학회 2015 한국미용학회지 Vol.21 No.6

The primary purpose of this study is to examine and analyze the difference between major duties in practical fields and on-the-job training conducted at school, which is required prior to field placement among skin care therapists who engage in salon esthetics and medical therapists. The study has found that lymph drainage of special treatment as part of major duties in practical field showed relative importance in salon esthetics while management of equipment showed importance in medical esthetics. When it comes to on-the-job trainings conducted at school prior to field placement, salon esthetics has had significantly higher necessities of prerequisite learning on information gathering and marketing, customer management, financial management, facilities management, product management, customer interface and consultation, skin type analysis, understanding customer requirements, planning and scheduling, preparation of customer charts, product advice, body shape management, lymph drainage, esthetic acupuncture meridians, skin trouble management, spa therapy, aroma therapy, Ayurveda, and equipment management than medical esthetics.

피부미용 종사자의 현장실습에 대한 중요도 및 필요도 요인

강수경 ( Soo Kyung Kang ) 한국미용학회 2014 한국미용학회지 Vol.20 No.6

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PLC 통신망 구축을 위한 선로 환경 측정 및 분석

강수경(Su-Kyung Kang),최인지(In-Ji Choi),박병석(Byung-Seok Park),박인수(In-Soo Park),이영훈(Young-Hun Lee),강철신(Cheoul-Shin Kang) 한국정보기술학회 2013 한국정보기술학회논문지 Vol.11 No.9

As the AMR business expanded, It is necessary to understand the PLC characteristics of the site to build the entire AMI system. This paper deals with channel and noise characteristics in details from 2MHz to 30MHz based on the field tests over low voltage power line in Korea grid. And we analyze frequency which is measured by distance and consumer characteristics and suggest the direction of demonstration system for the AMI system. Finally we suggest that the coverage of power line communication is under 50m, and if the distance is over 50m, then it is necessary to use the repeater which amplifies the signal. And we found that noise characteristic is more related to the customer type rather than distance.