• 대한화장품학회지
• /
• 제40권1호
• /
• pp.29-36
• /
• 2014

철피석곡은 중국에서 전통의약식물로 잘 알려진 난과 식물 중 하나이다. 본 연구에서는 생물반응장치를 이용하여 조직 배양된 철피석곡에 대하여 화장품 성분으로써 응용 가치를 평가하였다. 이미 몇몇 보고된 논문에서 철피석곡은 항암, 상처 치유 그리고 면역기능증진 등의 약리학적 활성에 대한 연구가 진행되었다. 본 연구에서는 생물반응장치를 이용하여 조직 배양된 철피석곡의 원괴체상구체 및 다신초에 대하여 화장품 성분으로서 효능, 효과를 자연에서 자란 철피석곡과 비교 평가하였다. 항산화 활성 비교 실험 결과 철피석곡의 원괴체상구체는 조직배양된 다신초 및 철피석곡 지하부 및 지상부보다 항산화 효과가 우수하였다. 조직배양된 원괴체상구체의 총 페놀 및 총 플라보노이드 성분 또한 다른 다신초나 자연에서 자란 철피석곡 추출물보다 함유량이 높음을 알 수 있었다. 다른 한편으로는 피부 미백과 관련한 효과를 비교 조사한 결과, 조직 배양된 다신초가 자연에서 자란 철피석곡 지상부, 지하부 및 조직 배양된 원괴체상구체보다 타이로 시네이즈 활성 억제 및 멜라닌 생성 억제 효과가 우수하였다. 이러한 결과들은 피부개선을 위한 화장품 성분으로서 조직배양체의 부분별 응용 가능성을 제공할 수 있을 것으로 사료된다.

• 한국건축시공학회지
• /
• 제4권3호
• /
• pp.109-116
• /
• 2004

Normally easy task of plat in urban architecture is that using underground full of activities for increase building site efficiency. Especially for using underground space for the parking lot. Also utilize underground is more increase for fulfill requirement in modern society considered with environmental friendly architecture. The primary objective of this study is to apply analyzed formal foundation type for selecting the optimum type of parking lots considered with structural stability, economical efficiency, construction efficiency, construction duration. This study aim to on criteria decided through the questionaries for the selection considered with in the scale of second stories parking lots underground, parking volume is 80 and reinforced concrete structure. The bearing capacity is 6～8m and downward from surface, healthy ground bearing capacity is 40 t/m2. This study comparative analysis and discuss economical efficiency, construction efficiency, construction duration based constructivist stability which applied Single foundation, Mat foundation, Drop Mat foundation. The result of this study is as follows: First, the result of economical efficiency is that on the basis of single foundation, Drop Mat foundation is 1.88, Mat foundation 2.04 as a comparative analysis on the basis of total construction cost included material cost, labor coast and machinery cost. Second, the result of construction efficiency order is single foundation, Drop Mat foundation, Mat foundation as a comparative analysis on the based connected characteristics. Third, the result of construction duration is that on the basis of Mat Foundation, Drop Mat foundation is 1.33, single foundation is 1.87 as a comparative analysis Critical Path. Forth, Each foundational type characteristics order through the matrix method is that overall each formal type of foundation contraries at economical efficiency and construction efficiency, construction duration. Also expect contradiction between engineers and owners due to engineer pursuit construction duration and ewer to begin with economical efficiency. Fifth, The selection of suitable foundation formal type needs that based consider project characteristic and field condition as according to above result of a comparative analysis. As a result, a comparative analysis economical efficiency, construction efficiency, construction duration of Mat foundation, Drop Mat foundation, single foundation with 3Bay reinforced structure underground parking lots on the healthy ground.

• 문화기술의 융합
• /
• 제8권6호
• /
• pp.493-503
• /
• 2022

청대의 예서는 중국서예의 역사에 혁신을 불러왔다. 서예에 있어 중요한 금석학과 고증학이 청시대에 들어와 발전하였고, 그리하여 예서에 적지 않은 영향을 미쳤다. 청시대예 들어와 적지 않은 서예가들이 출현하였고, 특히 금농(金農:1687-1763)과 이병수(伊秉綬:1754-1815)은 중국의 서예의 역사에 있어 예서체가 자리 잡는데 핵심적인 역학을 한 서예가들이다. 금농과 이병수에 대한 연구가 활발하게 진행되고 있지만, 이 논문에서는 두 예서체의 대가들이 남긴 그들의 작품을 비교분석하여 예서의 미적 가능성을 현재적인 관점에서 고찰하고, 나아가서는 서예가로서 금농과 이병수의 예서작품을 비교분석하여 예서의 미적 차이점을 구체화 한다. 나아가서 두 서예가의 예서가 한대(한자)의 예서를 전승함에도 불구하고 청시대의 예서사에 자리매김한 원인이 탐구되어야 한다. 따라서 한시대의 예서와 금농과 이병수의 예서체 그리고 서예의 사상과 그들의 서예작품은 예서를 비교 및 연구한다. 청시대의 서예가인 금능과 이병수 작품에 대한 비교분석은 예서의 역사적 그리고 미학적 판단에 중요한 화두를 제공한다. 이는 후세의 서예가들에게 예서체를 배울 수 있는 길을 마련했을 뿐만 아니라. 서예의 역사적 그리고 미학적 가치를 연구하는데 단초를 제공하기 때문이다.

• 한국콘텐츠학회논문지
• /
• 제12권4호
• /
• pp.457-467
• /
• 2012

본 연구는 생활체육이 비교적 잘 발달되어 있는 OECD 국가들을 대상으로 생활체육정책의 국가 간 상이한 유형을 밝혀내고 그 원인이 무엇인지 밝혀내는데 그 목적이 있다. 이를 위해 생활체육이 비교적 잘 발달되어 있는 OECD 30개 국가 중 관련 자료의 취득이 가능한 26개국을 연구대상으로 삼았다. 그리고 군집분석을 통해 유형화된 국가들의 결정요인을 질적비교분석(Qualitative Comparative Analysis: QCA)을 이용하여 분석하였다. 질적비교분석을 위한 원인변수로는 1인당 GDP, 여가시간, 공공사회복지지출(SOCX), 지니계수, 빈곤율, 조세부담률을 선정하였다. 이러한 과정을 통하여 얻은 연구결과는 다음과 같다. 첫째, 분석대상 26개 국가들을 생활체육참여율과 스포츠클럽참여율을 기준으로 군집화하여 국가별로 유형한 결과 세 가지의 유형을 발견하였으며, 한국은 생활체육참여율과 스포츠클럽참여율이 낮은 유형으로 나타났다. 둘째, 국가별 생활체육정책의 유형이 발생하는 결정요인을 파악하기 위하여 질적비교분석을 실시해 본 결과 한국이 속한 유형은 GDP, 여가시간, 공공사회복지지출(SOCX), 조세부담률과 부의 관계를 나타내며, 지니계수와 빈곤율과는 정의 관계를 나타냈다.

• 로봇학회논문지
• /
• 제15권2호
• /
• pp.147-159
• /
• 2020

Over the last years, a number of different path following methods for the autonomous parking system have been proposed for tracking planned paths. However, it is difficult to find a study comparing path following methods for a short path length with large curvature such as a parking path. In this paper, we conduct a comparative study of the path following methods for perpendicular parking. By using Monte-Carlo simulation, we determine the optimal parameters of each controller and analyze the performance of the path following. In addition, we consider the path following error occurred at the switching point where forward and reverse paths are switched. To address this error, we conduct the comparative study of the path following methods with the one thousand switching points generated by the Monte-Carlo method. The performance of each controller is analyzed using the V-rep simulator. With the simulation results, this paper provides a deep discussion about the effectiveness and limitations of each algorithm.

• 한국의류학회지
• /
• 제31권5호
• /
• pp.729-741
• /
• 2007

In order to examine the characteristics of brassiere products for the 1924 generation brands on the market and grasp problems, we selected three 'comparative brassieres', each one from among the 1924 underwear brands with the highest recognition and sales profit, and then designed a 'sample brassiere' pattern(75A) with a similar shape to the comparative brassieres. We set up the "New Cup Grading Rule" with a view of reflecting the wearing effect that was varied according to cup sizes, graded the sizes of 75AA and 75B with this method, and made the sample brassieres in three sizes. We conducted the wearing evaluation and body measurements of 9 subjects after analyzing the patterns and characteristics of the sample brassieres and three comparative brassieres. As a result of the wearing evaluation, the sample and comparative brassiere 2, the dimensions and shapes were appropriate for the 1924 generation consumers and expressed an overall natural silhouette, showed satisfactory results in the entire evaluation questions. On the other hand, the comparative brassiere 1 and 3 that tended toward making a big change in the physical characteristics got unsatisfactory evaluations in the dimensions of the cups, clothing pressure, and bust silhouette. As a result of observing the variation in body dimensions by body measurements when nude and when wearing each brassiere and then summing it up with the score of the wearing evaluation, it was proven that too much change in body shape can create a negative image by upsetting the balance of the whole silhouette. Therefore, it is desirable to develop brassiere products with proper dimensions and clothing pressure that can make a physical change that harmonizes the overall bust silhouette and the position and shape of the breasts.

• Journal of Preventive Medicine and Public Health
• /
• 제43권5호
• /
• pp.387-395
• /
• 2010

Objectives: The purpose of this study was to compare the physical and mental health status of disaster victims according to disaster types, such as a typhoon disaster and an oil spill disaster, and to suggest adequate health care services for them. Methods: A total of 484 people who suffered disasters were selected for this study, and data were collected from July to August, 2008. The data-set for this study included 286 victims of typhoon disasters in Jeju and Jeollanamdo district in South Korea, and 198 victims of the oil spill disaster in Taean. Physical health status was measured using revised Patient Health Questionnaire and mental health status was measured using the Korean version of 'Post-traumatic Diagnostic Scale'. Results: According to the comparative analyses of typhoon disaster victims and oil spill disaster victims, poorer physical health outcomes were shown among the oil spill disaster victims when compared to the typhoon disaster victims. Also, the oil spill disaster victims showed symptoms of depression, anxiety, and post-traumatic stress disorder, at rates higher than those found among the typhoon disaster victims. Conclusions: These findings suggest that there is a need to provide adequate physical and mental health-related care services for oil spill disaster victims. The seriousness of oil spill disaster should be realized and reconsidered in developing recovery strategies and disaster preparedness for physical and mental health services.

• 한국IT서비스학회지
• /
• 제5권2호
• /
• pp.93-105
• /
• 2006

More emphasis has recently been put on the strategic application of IT, the linkage and integration between information system, and business process for value increase of a company's business. Thus, it is high time to redefine the concept of IT governance in order to effectively manage various IT services and assets. However, less attention has been paid to the practical study of domestic firms, compared to in the academic and industrial level. In this study, the current situation of IT governance setup and various factors for future development will be examined by a case study to explore activities, types, and determinants of decision making process that companies are currently conducting regarding IT governance. For the purpose of comparative analysis, two large enterprises were chosen with similar size of sales and high investment rate for IT within the same industry, and in-depth analysis was conducted based on the interviews of the concerned parties and in-house materials, from the perspective of structure, process, and relational mechanism. By the case study on IT governance of company 'A' and 'B', decision making mechanism and factors will be analyzed, which will indicate detailed characteristics of each decision-making field and its components for general application. By doing so, it is expected to be used as reference in building IT governance that fits the environment of a firm in the future.

• Nuclear Engineering and Technology
• /
• 제18권3호
• /
• pp.228-237
• /
• 1986

본 논문은 Fuzzy관련공식의 역문제에 대한 해석방법론의 비교연구를 제시하고 있다. 여기서 Fuzzy 집합은 완전한 Brouwerian격자에의 투영으로 정의된다. 현재까지 관련공식의 역해석은 세가지 다른 결과로 연구되고 있어, 이를 이용하여 원자력발전소 주급수펌프의 고장진단에 적용하여 검토하였다.

• 한국방재학회:학술대회논문집
• /
• 한국방재학회 2007년도 정기총회 및 학술발표대회
• /
• pp.612-615
• /
• 2007

The environmental damage caused by river-improvement and slope of incision cliff can dest habitations of animate nature and it takes long time for restoration. River system constructed with stability of flood control, fine biotope, harmony with surroundings should be need to protect and restore nature. Therefore, in this study, conduct comparative experiment in various methods which are stable hydraulically and develop vegetation on revetment of bank, stream bed protection and disaster prevention aspect.