• Proceedings of the Korean Powder Metallurgy Institute Conference
• /
• 2005.04a
• /
• pp.13-14
• /
• 2005

• Aerospace Industry
• /
• v.18
• /
• pp.13-19
• /
• 1994

전후 일본은 YS-11이라는 최초의 일본산 여객기를 만들어 여러나라에 판매한 실적이 있으나 중단했고 다시 YS-X라는 차세대 여객기 개발에 착수한 사실을 지난 6월호에 소개한 바 있으나 이 계획이 중단되었다는 설이 도는 것과 아울러 보잉사의 B-767, B-777 개발에 성공적으로 참여하고 다시 V-2500이라는 제트항공기 엔진의 공동개발을 추진중에 있어 우리에게는 결코 타산지석이 될수 없어 일본업계의 국제 공동개발현황을 요약해 보았다.

• Communications of the Korean Mathematical Society
• /
• v.13 no.1
• /
• pp.7-20
• /
• 1998

In this paper, we will investigated certain two types of isomorphisms of $B^{(n)}_{2n}$ which are closely related.

• Proceedings of the Korean Magnestics Society Conference
• /
• 2005.06a
• /
• pp.146-147
• /
• 2005

• The Microorganisms and Industry
• /
• v.13 no.3
• /
• pp.3-11
• /
• 1987

Hepatitis B virus (HBV) is a very serious threat to public health in most of the developing countries of the world. It is estimated that around 300 million people worldwide are chronic carriers of this virus and will transmit the disease both vertically and horizontally. Infection by this virus may cause a wide range of clinical manifestations ranging from an asymptomatic infection to liver cirrhosis.

• Journal of Welding and Joining
• /
• v.13 no.2
• /
• pp.132-138
• /
• 1995

Rene80 superalloy was liquid phase diffusion bonded by using boron(B) as an insert material, where B has high diffusivity and higher melting point as an insert material. Bonding procedure and bonding mechanism of Rene80/B/Rene80 joint were investigated. As results, liquid metal was produced by solid state reaction between base metal and insert material on bonding zone. The liquid metal was produced preferentially at the grain boundary. Except for production of liquid metal, other bonding procedure was nearly same as TLP(Transient Liquid Phase) bonding. Bonding time, however, was reduced compared to prior result of TLP bonding. By bonding S.4ks at l453K, Ren80/B/Rene80 joint was isothermally solidified and homogenized where thickness of insert material was 7.5.mu.m.

• Journal of the Korean Magnetic Resonance Society
• /
• v.5 no.1
• /
• pp.37-45
• /
• 2001

Synthetic pulmonary surfactants consisting of a mixture of phospholipids with synthetic peptides based on human surfactant-associated protein SP-B were prepared. These surfactants were analyzed f3r their secondary structures by circular dichroism (CD) spectroscopy and NMR spectroscopy. Two synthetic peptides (SP-B(3), SP-B(4)) combined with the phospholipid mixture displayed significant surfactant properties. The CD spectra showed that the u-helical propensities of the peptides in DPC micelles. In the NMR spectroscopy, the tertiary structures of SP-B(3) show that it has $\alpha$-helical structure from Gln5 to Arg13 in DPC micelle and SP-B(4) show that they have $\alpha$-helical structure from Gln5 to Leu12 in DPC micelle. Based on these structures, truncated peptides originated from SP-B protein, can be designed as effective synthetic surfactants for clinical use.

• Bulletin of the Korean Mathematical Society
• /
• v.20 no.1
• /
• pp.9-13
• /
• 1983

M$_{n}$(F) denotes the set of all n*n matrices over F={0, 1}. For a, b.mem.F, define a+b=max{a, b} and ab=min{a, b}. Under these operations a+b and ab, M$_{n}$(F) forms a multiplicative semigroup (see [1], [4]) and we call it the semigroup of the n*n boolean matrices over F={0, 1}. Since the semigroup M$_{n}$(F) is the matrix representation of the semigroup B$_{n}$ of the binary relations on the set X with n elements, we may identify M$_{n}$(F) with B$_{n}$ for finding all D-classes.l D-classes.

• Management & Information Systems Review
• /
• v.13
• /
• pp.163-188
• /
• 2003

Lack of trust is major reason for many company to take a cautions stance towards business-to-business electronic commerce. Especially innovative business models such as online business-to-business marketplaces face the lack of not only having to give their members and partners faith own capabilities and reliability, but also to ensure that the respective parties interacting through them have trust in each other. This paper is empirical study on the trust factors affecting the repurchase intentions in a B2B e-Marketplace by survey instrument based on Likert-style 5 point measurement scale. The objective of this paper is evaluation of relationship between repurchase intentions and trust. The focus of this paper is the antecedents and consequences of buyer trust in a B2B e-Marketplace, not trust intermediaries or in third parties that might mediate between the buyer and e-Marketplace. The findings of this study are expected to increase the awareness of B2B e-Commerce adopter and implementers about the importance of trust in e-commerce participation.

• Korean Journal of Exercise Nutrition
• /
• v.23 no.2
• /
• pp.13-15
• /
• 2019

[Purpose] Functional beverages are a protective or enhancing factor influencing not only public health but also athletic performance. The purpose of this study was to highlight the new conditioning beverage of the Lactobacillus pentosus strain b240 (B240) with electrolytes or proteins, which strengthens immune functions to improve the quality of life. [Methods] ISeveral related studies systematically reviews three main issues associated with conditioning beverages: (a) utilization and availability of the functional beverage; (b) significance of B240 in immune strengthening; and (c) availability and application of conditioning drinks in the daily life and sports field. [Results] Intake of B240 led to greater enhancements, including blood T-helper, NK cell, IgA and IgG level in conjunction with strengthen immune functions. These results speculated that the practical application of B240 contained beverages on physiological health and performance. [Conclusion] BODYMAINTÉ, this novel conditioning beverage is expected biological utility responsible for improved sports performance as a functional drink and has potential health-related implications.