• Journal of the Korean Chemical Society
• /
• v.55 no.3
• /
• pp.400-404
• /
• 2011

Safflower is called as the 'beneficial flower' because 'it helps human health', and it was introduced as red flower in Tonguibogam due to the red color of floral leaf. From old times, it has been used for the material of cloth and rouge. Recently, polyphenol compound, the main ingredient of safflower, known as anti-aging and anti-oxidizing material in the healthy food industry becomes the emerging hot topic. This study aims to confirm by DDT (Disk Diffusion Test) assay, MTT assay, and NF-${\kappa}$B Luciferase activity inhibition assay in vitro that polyphenol compound, which is the main ingredient of safflower, has the anti-microbial efficacy to inhibit the growth of acne germs that make troubles for the teenagers or middle aged. Also it aims to evaluate its clinical efficacy on the acne skin, utilizing the facial cleansing cosmetic form of soap sample. This study can contribute to take a major step forward to the development of cosmetic soap for acne in the cosmeceutical industry.

• International Commerce and Information Review
• /
• v.14 no.4
• /
• pp.459-490
• /
• 2012

The performance of FTA has a close relationship with the application of FTA by exporting companies. However, most existing literatures focus on the study of policies and economic results of FTA. Moreover, these researches based on a presupposition that exporting companies could make good use of FTA. Actually, these assumptions are clearly contrary to the reality of FTA application of exporting companies in Korea and the results are significantly differ from the performance of FTA. Based on the investigation of utilization of FTA, applied by export companies in Korea, this study tries to find out the most efficient strategies of the application of FTA. And the objective of this study is to propose some practical suggestions for export companies based on the case an alysis which will help them to improve performances of Korea-ASEAN FTA application. As the prior investigation of CEO's characters, application of FTA, and the implement of FTA, we got the fact that among lots of marketing strategies, Korea-ASEAN FTA is used extensively by large export companies. However, most of small and medium-sized export enterprises would like to choose conventional tariff, such as Lower tariffs and zero tariff as the main marketing strategies. In other words, because of lacking of human resources and infrastructure, the application of Korea-ASEAN FTA strategy is hard to achieve.

• Journal of Korea Port Economic Association
• /
• v.29 no.3
• /
• pp.95-111
• /
• 2013

The purpose of this study is to draw out the trade effect of the Korea ASEAN FTA by carrying out a panel analysis. For achieving such a purpose, Panel Unit Root, Panel Cointegration Test, Pooled OLS, Hausman Test, Fixed Effect, Random effect are performed. The last 15 years's data over the period of 1997 to 2011 concentrated on the ASEAN countries such as Indonesia, Malaysia, Philippine, Singapore, Thai, Vietnam is used in this study. Major implications are summarized as following. First, our government need to maximize the effect derived from conclusion of FTA(Free Trade Agreement) in order to enhance the competitive edge through obtaining a stable foreign market. Second, it necessary for our government to improve a national system by orienting a FTA conclusion complying with WTO's product and service-related regulation.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.19 no.1
• /
• pp.11-20
• /
• 2006

Objective : This experimental study was performed to investigate the effect of herbal eye drops, Sean-tang and Coptidis rhizoma on Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa keratitis. Methods : After administering herbal eye drops (Sean-tang, Coptidis rhizoma) on Staphylococcus ausreus, Staphylococcus. epidermidis and Pseudomonas aeruginosa, I measured MIC and the size of inhibition zone. MIC was measured by dropping to $50{\mu}{\ell}$ according to density(l00%, 10%, 1%, 0.1%). Anti-bacterial potency was measured by the size of inhibition zone with change of volume. Result : On Staphylococcus aureus, Staphylococcus epidermidis, Coptidis rhizoma showed the highest anti-bacterial potency and on Pseudomonas aeruginosa, Sean-tang, Coptidis rhizoma was nor anti-bacterial potency. Conclusions : The present author think that the herbal eye drops, Sean-tang and Coptidis rhizoma can be used to cure Staphylococcus aureus, Staphyloccus epidermidis keratitis and if further study is performed, the use of the herbal eye drops will be valuable and beneficial in the clinical medicines.

• The Korea Journal of Herbology
• /
• v.38 no.3
• /
• pp.11-18
• /
• 2023

Objectives : This study aimed to investigate the effect of face washing on pore changes in a controlled environment without external condition changes. The research compared the results of water washing, foam cleanser (F/C) washing, and herb cp (cold process) soap washing on pore reduction. Methods : The experiment was conducted using the same water and towel, in the same place, before and 10 minutes after washing. The skin test was performed before and after washing, and three cases of herb cp soap were tested: Ginseng, Liriope platyphylla (LP), and Castanea crenata inner shell (CCIS). A control group was established using water and F/C washing. Results : Water washing and F/C washing showed a similar degree of pore reduction. Men and individuals with complex skin types showed significantly larger pores. LP cp soap showed the greatest significance in pore reduction. Conclusion : This study found that pore shrinking effects were observed regardless of the use of facial cleansers. LP cp soap was found to be the most effective in reducing pore size. It is important to emphasize the importance of face washing for individuals with large pores and combination skin types, especially men.

• Journal of the Korean Society of Earth Science Education
• /
• v.9 no.3
• /
• pp.341-351
• /
• 2016

The purpose of this study is to investigate the effects of pre-service teachers of elementary school who take courses in 'Science and Textbook Research' on science teaching efficacy and science knowledge after experimental treatment. For this purpose, this study was aimed at intensive course four classes (118 students) enrolled in the 'Science and Textbook Research' course and experimented from the beginning of September to the end of November. The experiment was about teaching textbooks and teaching methods for one semester, and the pre- service teachers of elementary school made the demonstration of science cooperation classes by group. The results and analysis of the study were analyzed by the corresponding sample test in before and after the group test. The conclusion of the study is as follows. First, after taking this class the pre - service teachers of elementary school were effective in science teaching efficacy. Second, after taking this course, pre-service teachers of elementary school were effective in acquiring science knowledge. Third, it was seemed to positive effect on Perception of pre-service teachers of elementary school in Demonstration classes. Pre-service teachers of elementary school have created science course plan by analyzing the tasks according to the principles of instructional design, and they found that they had the right mind and confidence in the lesson.

• Journal of Navigation and Port Research
• /
• v.32 no.5
• /
• pp.369-377
• /
• 2008

Interest in high productivity and streamlined operation is growing amid a heated competition between ports and mega size vessel oriented operation. It becomes clear that terminals that operate YT(Yard Tractor) for transportation in container yard have less efficiency in operation and cost comparing terminals functioning AGV(Automated Guided Vehicle) system. To offset disadvantages arising out of YT operations, continual efforts (e,g YT pooling operation) were taken place for the last decade, but the result has not been fruitful; YT pooling operation still has a problem in that it cannot read individual YT's actual location. This study suggests 'YT dynamic operation model'- a practical application of RTLS(Real Time Location System) technology which will solve YT pooling operation problems.

• Proceedings of the Korean Vacuum Society Conference
• /
• 1999.07a
• /
• pp.191-191
• /
• 1999

Extended X-ray Absorption Fine Structure (EXAFS)는 일반적으로 널리 사용하는 X선 회절분광기로 분석하기 힘든 chemical 또는 biological system의 structural analyses에 매우 유용한 분석방법이다. 특히 세라믹이나 유전체 비정질 재료의 미세 원자 구조에 관한 정보를 얻는데는 가장 강력한 분석방법중의 하나로 알려져 있다. 현재까지 대부분의 EXAFS 실험은 방사광 가속기를 이용하여 수행하였다. 그런데 신제품 개발의 순환주기가 급속하게 단축되는 현실적인 문제에 부응하기 위하여 실험실에서 EXAFS 실험을 수행할 수 있는 system을 개발하게 되었다. 개발한 XIEES 장비는 rotating anode 형의 18kW X-ray source, Optical system, Detection system, Stepping motor control system, vacuum system, Utility 등으로 구성하였다. Optical system에서의 6개의 Johanson type monochromator를 사용하여 분석가능한 x-ray energy range를 480eV에서 41keV까지 구현하였다. 이는 산소에서 우라늄까지 분석이 가능함을 의미하는 것으로, 산화물 연구에 많이 활용할 것으로 기대한다. XIEES는 투과 및 형광 X-ray를 검출할 수 있는 기능과 X-ray에 의해 여기 되는 모든(광전자, Aiger 전자, 이차전자)들을 검출할 수 있는 기능을 갖추고 있는데 이를 Total Electron Yield 측정이라고 한다. Total Electron Yield 측정은 박막 시료와 같이 투과가 되지 않는 시료를 분석할 뿐만 아니라, 경원소 분석, 낮은 에너지에서 흡수 edge가 나타나는 L-edge 측정을 통한 전자 구조 분석 등에 유용한다. 실험실용 XIEES 장비는 방사광가속기에 비해 x-ray flux가 크게 뒤지는 문제와 Total Electron Yield를 측정하는 데 있어서 source에서 나오는 x-ray beam이 진공용기 안에서 산란되어 이차전자를 여기하고 이 이차전자들이 전자검출기에 유입되어 측정에 영향을 미치는 background 문제 등이 있다. 이 두 가지 문제를 해결하기 위하여 Capillary tube를 사용하였다. 본 연구에서는 실험실용 XIEES 장비를 소개하고 이를 이용하여 Cu standard 시료에서 측정한 EXAFS 결과와 Capillary tube를 사용하여 얻은 x-ray flux 증진 및 background 제거 효과에 대해서 발표한다.

• Journal of Pharmacopuncture
• /
• v.10 no.2 s.23
• /
• pp.19-23
• /
• 2007

Objectives : This experimental study was performed to investigate the continuous anti-bacterial potency of Sean-tang on cultivation of Staphylococcus species(S. aureus, S. epidermidis) that induce eye disease. Methods : Minimal inhibitory concentration(MIC) was measured by dropping to 50${\mu}$l diluted Sean-tang(100%, 10%,1%, 0.1%) on S. aureus, S. epidermidis that were cultivated from 2 to 6 days. 1. Anti-bacterial potency was measured by the size of inhibition zone with change of volume(20${\mu}$l, 30${\mu}$l, 40${\mu}$l, 50${\mu}$l). Results : 1. Anti-bacterial potency of Sean-tang on S. aureus was appeared in 100% and increased on 6 days. Anti-bacterial potency with change of volume was increased in propotion to increase volume. Anti-bacterial potency of Sean-tang on S. aureus was appeared continuous. 2. Anti-bacterial potency of S. epidermidis was appeared in 100%, 10%, 1% on 2 days and in100%, 10% on 6 days. In 100% Sean-tang, Anti-bacterial potency of 6 days was increased, in 10%, 1%, Anti-bacterial potency of 2 days was increased. Anti-bacterial potency with change of volume was increased inpropotion to increase volume and increased on 6 days, but bacteria was increased. Anti-bacterial potency Sean-tang on S. epidermidis wasn't appeared continuous. Conclusions : Anti-bacterial potency of Sean-tang on cultivation of S. aureus was showed continuous, but on cultivation of S. epidermidis was not showed continuous.

• Korea Trade Review
• /
• v.44 no.2
• /
• pp.109-126
• /
• 2019

Import refusals can be considered a new method of non-tariff barriers. This study aims to analyze reputation spillover effects on fish and fishery products imported from ASEAN countries to the U.S. FDA. The supply of aquatic products is not stable due to various factors such as reduction of fish stocks and climate change. Fish is a basic food ingested directly, but there are many ways to control the safety of aquatic products. ASEAN countries account for about 20% of U.S.imports in fish and fishery products. For Southeast Asian countries, fish and fishery products comprise a high proportion of exports revenue. Despite the large share of exports to the U.S., Southeast Asia countries have been receiving many import refusals from the United States. In this study, a theoretical model for examining import refusals is suggested using the negative binomial counting process. The reputation spillover effect, was divided into two spillover effects of 'neighbor reputation' and 'sector reputation'. Results show that there exists a neighbor reputation spillover effect. It can be said if there was a import refusal of the same product from neighboring countries in the preceding year, the home country have a possibility to experience import refusals of the same product. Therefore, it is interpreted that neighboring countries have good standard compliance can help home countries to effectively reach the target markets. Our findings have a important policy implication for ASEAN exporters of fish and fishery products.