• Bulletin of the Korean Chemical Society
• /
• v.33 no.1
• /
• pp.76-82
• /
• 2012

A novel and efficient tetrahydrofuranyl ring opening method was developed using the highly reactive TFAT reagent in the presence of an acid scavenger, 2,6-di-tert-butyl-4-methylpyridine. Various acid sensitive groups are compatible with the reaction condition, making it generally applicable to many tetrahydrofuranyl steroids. Moreover, it is a synthetic equivalent of 'Marker degradation' affording an efficient synthesis of C17-OH rockogenin acetate.

• Journal of Global Scholars of Marketing Science
• /
• v.17 no.2
• /
• pp.99-110
• /
• 2007

The widespread use of self-service concepts in retailing has resulted in increased attention to the design of retail environments and to stimuli operating at the point of sale. One such merchandising technique, the "bundled presentation", i.e., related products are presented in close proximity to each other, is widely used by retailers but has rarely been investigated by academic consumer researchers. This study presents the results of a field experiment into the effects of presenting products in their usage context. Customers' attitudes towards the same product displayed in different ways are compared with each other. The results show that related products, i.e., products that are used together, should be presented in a coordinated display. Furthermore, the bundled presentation enhanced consumers' attitudes of the product when they saw it first in a bundled presentation and then evaluated it in front of a traditional presentation.

• Journal of the Korean Mathematical Society
• /
• v.39 no.3
• /
• pp.461-494
• /
• 2002

Let G = E${\ast}_{A}F$, where A is a finitely generated abelian subgroup. We prove a criterion for G to be {A}-double coset separable. Applying this result, we show that polygonal products of central subgroup separable groups, amalgamating trivial intersecting central subgroups, are double coset separable relative to certain central subgroups of their vertex groups. Finally we show that such polygonal products are conjugacy separable. It follows that polygonal products of polycyclic-by-finite groups, amalgamating trivial intersecting central subgroups, are conjugacy separable.

• Proceedings of the Korea Concrete Institute Conference
• /
• 1992.04a
• /
• pp.99-104
• /
• 1992

There is a limit manufacturing precast products for the construction industry using conventional cement concrete and precast iron due to many reasons. Therefore, precast product technologies using polymer concrete are widely developed across the world because using polymer concrete can be over come this limitation. This study reviewed and analyzed the trends of development and practical usages of ploymer concrete precast products in foreign countries based on selected literatures. It was observed that polymer concrete precast products have been widely used as utility structures wall and slab members. decoration products, traffic products, hydraulic structures and industry equipments.

• Journal of the Korean Society of Costume
• /
• v.60 no.3
• /
• pp.56-65
• /
• 2010

It is time to create an image of Korea that uniquely defines and represents the nation to the world, by incorporating Korean traditions with the cultural industry. To this end, it is important to see the beauty of Korean tradition from an academic perspective and further explore its utility from an industrial viewpoint. This study is intended to design uniforms for employees in Korean restaurants at hotels or docents in Korean-styled museums. In doing so, we eyed on Baeja, a Korean traditional vest as the cultural archetype, and created cultural products. As our archetype, we chose two pieces of Baeja : one excavated from the tomb of Suryun Sim (1534-1589) which is displayed in the Gyeonggi Provincial Museum, and the other from Byeon of the Jeonju Lee family (1636-1731) in Suk Joo-Sun Memorial Museum at Dankook University. We also adopted Dapho with a Korean traditional vest with long length. Based on these cultural archetypes, seven products were developed. With the traditional food and way of living in Korea being more and more recognized in the global stage, it would be continuous creation and development of cultural contents with history and story rooted in the cultural heritage of the nation that could enrich our culture by bringing traditions back to the modern days to incorporate the past into the present. It is important to restore traditions when developing cultural products. However, it is also critical to commercialize ideas with stoη and creativity in the market for cultural products.

• Archives of Pharmacal Research
• /
• v.12 no.1
• /
• pp.22-25
• /
• 1989

Ethylacetate fraction from Orobanche crenata, contained two phenylpropanoid glycosides, exhibited some pharmacological properties. It was found to be non-toxic to rats in oral doses up to 500mg/100gm body weight. In large doses, it lowered the arterial blood pressure of anaethetised rats, and produced significant analgesic effect in mice and diuretic effect in rats. It further showed smooth muscle relaxant and antispasmodic effects in the isolated rabbit intestine and guinea-pig ileum respectively.

• Korean Journal of Organic Agriculture
• /
• v.12 no.3
• /
• pp.303-316
• /
• 2004

Recently, with the improvement of national income, the increase of int e rest in the consumers, health, and the enhancement of recognition of environment the demands of environmental-friendly agricultural products(EFAPs) are on the rise rapidly. The demand in the market for EFAPs increases rapidly, and the sales amount increases by 30~40% every year. But, it is in situation that the EFAPs arc not distributed well between the producers and consumers now. That is, the producers of EFAPs can not End th e ir markets. And, the consumers do not trust the EFAPs. Also, it is in situation that it is difficult to promote the demand because of relatively higher prices than the general agricultural products. To solve these problems, it may be summed up as follows. First, it needs to reduce the distribution cost by the construction of stable supply basis. Second, it needs to improve the distribution system of EFAPs. Third, it needs to enhance the differentiation and improve the consumers, reliability. Fourth, it needs to make in brand and extend the various publicities. Fifth, it needs to construct the supporting system and enhance the cooperation with the related institutions. Sixth, it needs to End new demand and introduce the procurement system by the government.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.29 no.4
• /
• pp.897-906
• /
• 2019

As the Information and Communication Technology developed, the administration computerization of the government was promoted, and cyber attacks targeting IT products are spreading all over the world due to the reverse functions. Accordingly, governments in each country have begun to verify the security in the introduction of IT products by national and public institutions in order to protect information, and established the policy required in the introduction process. This research analyzes the introduction policy of domestic IT products to identify the supplement point. In addition, we analyze trends of introduction of IT products in the major developed countries such as USA, UK, Japan, Canada, and Australia. Finally, we propose the improvement method of domestic introduction policy through comparison analysis with domestic introduction policy.

• Journal of Fashion Business
• /
• v.14 no.4
• /
• pp.91-101
• /
• 2010

This paper has the purpose of suggesting a development-method on the fashion products that would secure the competitiveness in the global markets through creating supersensitive practical products on the basis of developing originative fashion-goods being made of jacquard that is fine quality of couture. This paper has collected data through the cases of the developed nations in fashion, precedent studies and all the related literature on the subject. The results of this researching are as following: The first, it is expected that the necessity of developing new fashion products would be appealed toward the prestige group of consumers who are seeking for the fine quality and super-sensitivity in female fashion in Korea, and it is the current situation that the products made of jacquard are gradually expanding not only in the area of apparel, fashion goods and interior but also another areas. The current situation of the global market suggests the necessary strategy of survival, that is, the development of supersensitive materials and creative products which would be able to keep the high quality and lower the selling price through cost reduction. The second, the suggestion of the direction in developing the products of the female fashion made of jacquard has two points - the development of the texture that would realize a unique form and the development of the material that would be able to realize planar pattern and three dimensional pattern which are woven with thin and light materials with various solidity and delicacy through various techniques of mixing and three dimensional expression. The third, the expected ripple effect and utilization generated from the development of fashion products are as followings: As material characteristics of jacquard, It needs the specialization of various techniques and specialized production system in using jacquard, and the specialized technique and system would make it possible to produce not only the higher value-added products through expressing affluent colors and delicate design but also competitive products through cutting the process and cost, eventually, it would lead to the expansion of the jacquard market of super-sensitive prestige. Therefore, it is remarkable that various development of products toward the global market and the prestige female fashion market can suggest the vision that make the national fashion industry develop into the higher value-added knowledge industry integrating technology and culture.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2020.11a
• /
• pp.4-5
• /
• 2020

Pipe support is a representative structure that supports slab formwork, and it is a representative temporary equipment that has been systematically managed since the 1990s when the domestic temporary equipment performance test system was introduced. Nevertheless, it is also a reality that many of the products in circulation are used products that are reused and do not meet the performance of the initial manufacturing stage. However, if only new products are insisted, it could lead to delays in the process due to an increase in construction costs and difficulties in timely delivery. On the contrary, it is not acceptable for the safety of the construction site to use products of low quality without verification procedures or standards. Therefore, this study attempts to grasp the management system such as safety certification for temporary equipment and the actual condition of quality control to maintain performance, and propose improvement plans.