• Honam Mathematical Journal
• /
• v.33 no.2
• /
• pp.279-300
• /
• 2011

For a subset system M on any poset, M-Scott notions, such as M-way below relation,M-continuity,M-Scott convergence (of nets and filters respectively) and M-Scott topology are proposed Any approximating auxiliary relation on a poset can be represented by an M-way below relation such that this poset is M-continuous. It is shown that a poset is M-continuous iff the M-Scott topology is completely distributive. The topology induced by the M-Scott convergence coincides with the M-Scott topology. If the M-way below relation satisfies the property of interpolation then a poset is M-continuous if and only if the M-Scott convergence coincides with the M-Scott topological convergence. Also, M-continuity is characterized by a certain Galois connection.

• Journal of The Korean Society of Agricultural Engineers
• /
• v.46 no.6
• /
• pp.47-58
• /
• 2004

As concrete structures are getting larger, higher, longer and more specialized, it is more required to develop steel fiber concrete and apply to the real world. In this research, it is aimed to have fatigue strength examined, varying the steel fiber content of 0%, 0.75%, 1.00%, 1.25% by experimental study of fatigue behavior of the steel fiber reinforced concrete continuous beams under cyclic loading. The ultimate load and initial load of flexural cracking were measured by static test. In addition, the load versus strain relation, load versus deflection relation, crack pattern and fracture mode by increasing weight were observed. On the other hand, the crack propagation and the modes of fracture according to cycle number and the relation of cyclic loading to deflection relation and strain relation were investigated by fatigue test. As the result of fatigue test, continuous beam without steel fiber was failed at 60 ~ 70% of The static ultimate strength and it could be concluded that fatigue strength to two million cyclic loading was arround 67.2% by S-N curve. On the other hand, that with steel fiber was failed at 65 ~ 85% of the static ultimate strength and it could be concluded fatigue strength to two million cyclic loading around 71.7%.

• Korean Journal of Mathematics
• /
• v.4 no.1
• /
• pp.77-82
• /
• 1996

We introduce the concepts of fuzzy $s$-continuous functions. And we investigate several properties of the fuzzy $s$-continuous function. In particular, we study the relation between fuzzy continuous functions and fuzzy $s$-continuous functions.

• Journal of the Chungcheong Mathematical Society
• /
• v.15 no.1
• /
• pp.75-85
• /
• 2002

Let X be a compact metric space and let f be a continuous relation on X. Let U be an attractor block for f and let A bean attractor determined by U. Then there exists a continuous function ${\lambda}^{-1}:X{\rightarrow}[0,1]$ such that ${\lambda}^{-1}(0)=A$, ${\lambda}^{-1}(1)=X-B(A,U)$, and $M({\lambda},f)(x)$ < ${\lambda}(x)$ for all $x{\in}B(A,U)-A$.

• The Research Journal of the Costume Culture
• /
• v.22 no.6
• /
• pp.1011-1027
• /
• 2014

The purpose of this study is to analyze the factors that lead to continuous use intention of SNS marketing. The research model was designed to investigate the SNS factors that affect use intention based on TAM (Technology Acceptance Model) suggested by Davis (1986). The survey focused on age twenties to thirties male and female who had experience in receiving fashion brands message through Facebook. 329 questionnaires were used to analyze the results of study, and SPSS 12.0 was used to conduct factor analysis, reliability analysis, and multiple regression analysis. The results of this research are as follows. First, interaction/playfulness, information, reliability, and convenience of access were extracted as the characteristics of fashion brands SNS marketing. Second, all SNS factors had significant relation on perceived usefulness. But only interaction/playfulness and convenience of access showed significant relation on perceived ease of use. Third, perceived usefulness and perceived ease of use affected continuous use intention. Forth, continuous use intention had significant relation on brand attitude and showed direct and indirect significant relation to purchase intention.

• Journal of the Korean Chemical Society
• /
• v.50 no.4
• /
• pp.277-280
• /
• 2006

We report an exact relation between the survival probability, the revisit time distribution, and the reaction-free propagator of the continuous time random walker. The relation holds even for such a general case where the random walker has a distinct jump dynamics at each lattice site, which may be dependent also on the direction of the jump. The application range of the obtained relation is not limited to the nearest neighbor hopping in the bulk lattice either. The result is applicable to a higher dimensional system with the spherical symmetry as well as it is to the one-dimensional system.

• Korean Journal of Mathematics
• /
• v.18 no.4
• /
• pp.409-424
• /
• 2010

We observed the symptoms that occur to students who dislike mathematics when they study mathematics and the data that mathematics is related to foreign language. This study investigated the relation between mathematics and foreign language. Continuous immersion aids not only in acquiring language but also in learning mathematics. For continuous immersion, it is essential to organize small class. We organized small class and compared large class with small class about how the relation between mathematics and language appears in achievement, rate of presence, rate of submission of report, and attitude and enthusiasm. Based on the result, we try to find out the way to increase understanding mathematics and level up the achievements.

• Korean Journal of Mathematics
• /
• v.4 no.2
• /
• pp.135-140
• /
• 1996

We introduce the concepts of fuzzy $s$-open functions, and $s$-closed functions. And we investigate several properties of such functions. In particular, we study the relation between fuzzy $s$-continuous maps and fuzzy $s$-open maps( $s$-closed maps).

• Communications of the Korean Mathematical Society
• /
• v.25 no.3
• /
• pp.335-342
• /
• 2010

The structure of fuzzy topological spaces based on WFI-algebras is considered. The notions of WFI-fuzzy topological spaces and WFI-fuzzy continuous mappings are introduced, and several properties are investigated. A relation between WFI-homomorphism and WFI-fuzzy continuous mapping is given.

• International Journal of Quality Innovation
• /
• v.4 no.1
• /
• pp.77-91
• /
• 2003

Continuous Improvement is a central concept in the quality movement. In almost all descriptions of quality initiatives Continuous Improvement is central. Even in ISO 9000:2000 that has been recognised. In this paper we will discuss the role of continuous Improvement within the quality movement, its relation to knowledge management and, especially, its origin in pragmatic philosophy.