• KSBB Journal
• /
• 제5권3호
• /
• pp.201-205
• /
• 1990

The characteristics of steroid acyl transferase were studied in the rat brain with (4-14C)-dehydroepiandrosterone(DHEA). The results could be summarized as followings: The enzyme system responsible for the biosynthesis was localized at the microsome fraction. The optimum pH of this enzyme was 4.6 When DHEA was utilized as substrate, $\Delta$5-pregnenolone was proved to be a competitive inhibitor. However testosterone was a noncompetitive inhibitor. The acylation at 3${\beta}$-hydroxyl group was favored when the hydrophilicity at Cl7 position increased. However, this acylation at C3 was very low when A ring was aromatic. The acylation at Cl7 hydroxyl group reguired an absolute 17${\beta}$-conformation.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2002년도 추계학술대회 논문집 전력기술부문
• /
• pp.369-371
• /
• 2002

In a competitive electricity market, the transactions of the electric power can be accomplished through the bidding which is submitted by suppliers and consumers. It is essential that the optimal decision for the bidding is required to take a dominant position in the competition. Therefore, in this paper we presents bidding variables from bidding curves of suppliers and consumers and proposes the algorithm of an optimal bidding strategy using optimal power flow. Furthermore, the variation of the optimal bidding is investigated through numerical studies.

• 한국산업정보학회:학술대회논문집
• /
• 한국산업정보학회 1997년도 추계학술대회 발표논문집:21세기를 향한 정보통신 기술의 전망
• /
• pp.237-257
• /
• 1997

The great flowing of information has brought a necessity for good management to make the best use of it in the highly competitive information age. The aims of this study are to investigate the main information sources - divided into largely three groups: literature sources, communication and information technology facilities), trying to find problem areas associated with IRM, indicating possible solutions. The result shows that internal information sources were regarded the most important and most frequently used. For the use of foreign materials, the higher the level of position is, the more people use them. With respect to communication methods, internal information sources were thought most important. With the dramatic falling of the price despite enormously increased functions, IT facilities are becoming important sources. However, the study reveals the use of them is quite limited to a few well-known facilities, which indicates that management should pay attention to more efficient use of them and useful training and education methods.

• 한국경영과학회지
• /
• 제24권1호
• /
• pp.13-25
• /
• 1999

This paper presents a model of competitive positioning and pricing of new products in a multi-segmented market. The segments in the market are located on a multi-dimensional discrete attribute space with fixed demands. Firms launch products sequentially on the attribute space, incurring fixed and variable costs, and then decide on their product prices. Each firm acts to maximize its profit. Market share of a firm is determined by the position and price of Its product. We provide sufficient conditions for the existence and uniqueness of Nash equilibrium Another equilibrium concept is Introduced and related to the Nash equilibrium. A heuristic algorithm based on genetic algorithms is designed to obtain the Nash equilibrium.

• 한국인쇄학회지
• /
• 제28권2호
• /
• pp.13-30
• /
• 2010

Existing domestic ink market had some problem because of dependence on CPP import, increasing cost, competitive price. For this reason, previous speed of research and developments are very slow. Therefore, develop the new waterborne type of non-chlorine resin, enhance the nation's position with manufacturing outstanding products. Through this thesis, the purpose is mix the polar resin and non-chlorine resin with many proportion and manufacturing better product than existing resin. Pilot production samples have run the test of adhesion, transparency, water resist and resist high pressure car washing. In conclusion, this thesis found that mix acryl Urethane resin and Non-Chlorine resin is the optimum condition.

• 대한안전경영과학회지
• /
• 제11권1호
• /
• pp.51-57
• /
• 2009

In order recently to plan the economic position improvement and an independence of the disability the concept which is the "Disability Firm Activity Promotion Law" establishes and "the Disability firm" uses. But the policy the Disability Firm Activity Promotion Law which is an obstacle for the true feelings Disability firm was about there is a lingering. Promotes the activity of the Disability firm from the research which sees the Disability Firm Activity Promotion Law revision direction for the competitive improvement of the Disability firm.

• 경영과정보연구
• /
• 제14권
• /
• pp.195-214
• /
• 2004

The purpose of this study is to find proper strategies for the reinforcement of brand image in the online insurance retail stores. First, from theoretical backgrounds, I have investigated acquisition effects, strategies for changing brand image, decisions on a product position and product differentiation under various strategic marketing factors based on the reinforcement strategies of brand image. Second, there is a significant difference between corporate/on-line insurance retail store names recalled first and brand names recalled first. Third, in terms of consumers' preferences, there exists a substantial difference between corporate/on-line insurance retail stores and brands. From this study, the following conclusions are drawn. First, on-line insurance retail stores and brand image should be carefully developed and used as a tool to secure competitive advantages. Second, on-line insurance retail stores and brand image should be considered and continuously enhanced as an important asset for the on-line insurance retail stores. As the importance of brands grows, brand management is an essential step for powering brands.

• 해양환경안전학회:학술대회논문집
• /
• 해양환경안전학회 2017년도 공동학술발표회
• /
• pp.166-166
• /
• 2017

Nowadays, container transport services play a substantial role in global cargo transportation by serving as an intermodal between the exporter and importer. Container shipping has become increasingly important over the past few decades due to its obvious advantages. However, Vietnam's container market has shown severely ongoing competition among numerous domestic and foreign shipping lines resulting in serious consequences occurring such as the freight rates substantially decreasing within the last ten years. In fact, Vietnam's sea lanes have become more defensive to cover the losses of shipping companies. Selection of criteria for competitive evaluation of container transport companies is necessary to help recognize the problems within the enterprise especially relating to its position in the market and from here, business management are able to put strategic plans in place and reasonable policy in order to be able to survive and grow.

• 산업경영시스템학회지
• /
• 제21권45호
• /
• pp.375-381
• /
• 1998

For products that are subject to inspections that lead to either acceptance or rejection, the p chart or control chart for proportion defective is applicable. The charting technique approach to quality control aims at alerting its user to any presentations in the properties of a manufactured product. This article presents an important tool available for quality control of a production process at the occurrence of defects in manufactured products at view low levels to improve the efficiency of the manufacturing productivity and to satisfy customer through the reduction of defect rates. To understand the consequences of the level of quality on competitive position, a more technical perspective is needed.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2013년도 추계 학술논문 발표대회
• /
• pp.88-89
• /
• 2013

For the purpose of launching strikes, initial survivability of self-propelled artilleries is of crucial importance despite the fact that they are mobility weapon systems. This study identifies the combat placement possibility of the reinforced concrete box-type artillery positions, which might enable the replacement of the current igloo-types, in terms of cost and protection capability. In the numerical analysis the obtained numerical values have proved that these facilities have sufficient protection capability. In addition, it could be concluded that these facilities are also cost-competitive, if more than five positions are constructed simultaneously.