• Journal of Fashion Business
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• v.22 no.3
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• pp.16-29
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• 2018

The present study examines whether consumers' perception of waiting time and their behavioral intentions are influenced by the presence of background music in an online shopping environment. In particular, this study aims to explain the underlying mechanism for the effects of background music on consumers' perceived wait and behavioral intentions toward the online retailer by proposing the mediating role of emotions drawing on the Stimulus-Organism-Response (S-O-R) framework. A lab experiment was employed to test the hypotheses. A total of 102 college students were used for data analyses. Results show that the presence of music has a significant impact on participants' emotions, perceived waiting time, and approach behavior. Moreover, the findings show that pleasure and the perceived waiting time serve as mediators in the relationship between the presence of music and approach behavior. Implications of the model for theory, practice, and further research are discussed.

• Journal of the Korea Institute of Military Science and Technology
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• v.15 no.2
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• pp.138-146
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• 2012

Using Shear-free Ship wake theory it was predicted the detectable submarine's turbulent wake on the sea surface was about 12km long when there was no breaking waves on the sea surface. It means that there are sufficient detectable turbulent kinetic energies on the sea surface as well as in the water. In this paper, we have proposed some concepts of non acoustic anti-submarine surveillance systems; SAR for sea surface surveillance, LIDAR for sub-surface surveillance and propelled gliders for under -water surveillance.

• Proceedings of the KIEE Conference
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• 1995.07c
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• pp.1229-1231
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• 1995

XLPE cable, which has excellent electrical and thermal performance, has been widely used for HV transmission & distribution lines. The most important thing to produce the cable products having good performance is to set the optimal operating conditions of cable machinery. Because it is very difficult to measure the temperature of cable under curing process practically, it is necessary to evaluate the cable temperature by using the method to simulate real conditions numerically. In this work, We investigate the basic theory on transient heat transfer between curing tube and cable for making a numerical simulation program using computer. In this program, a differential equation is approximated by a infinite differential method and a few assumptions are used to simplify the model and minimize the calculation time of program.

• Journal of the Korean Ceramic Society
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• v.32 no.1
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• pp.140-144
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• 1995

The role of Mn on the PTCR characteristics of La-doped BaTiO3 ceramics was studied. The calculated Ns value was increased with Mn concentration and consequently pmax and pmin were increased. The behavior of pmin was explained by the Jonker's theory, and Ns value of 6.35×1017m-2 was well agreed with the theoretical estimate of Jonker's. The value state of Mn was measured by ESR, and changed around Tc from ＋3 in tetragonal phase to ＋2 in cubic phase. Therefore, the amount of electron trap increased at Tc led to the great improvement of PTC R characteristics.

• Journal of the Korean Mathematical Society
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• v.36 no.4
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• pp.747-756
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• 1999

In ring theory it is well-known that a ring R is (von Neumann) regular if and only if all right R-modules are flat. But the analogous statement for this result does not hold for a monoid S. Hence, in sense of S-acts, Liu (]10]) showed that, as a weak analogue of this result, a monoid S is regular if and only if all left S-acts satisfying condition (E) ([6]) are flat. Moreover, Bulmann-Fleming ([6]) showed that x is a regular element of a monoid S iff the cyclic right S-act S/p(x, x2) is flat. In this paper, we show that the analogue of this result can be held for automata and them characterize regular semigroups by flat automata.

• Journal of KIISE:Computer Systems and Theory
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• v.33 no.7
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• pp.448-453
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• 2006

We extend a parallel depth-first search (DFS) algorithm for planar graphs to deal with (non-planar) solid grid graphs, a subclass of non-planar grid graphs. The proposed algorithm takes time O(log n) with $O(n/sqrt{log\;n})$ processors in Priority PRAM model. In our knowledge, this is the first deterministic NC algorithm for a non-planar graph class.

• Journal of architectural history
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• v.1 no.2 s.2
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• pp.52-67
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• 1992

In Cho-Sun Dynasty, since Czhu-Ja Ga Rae be introduced in late Korea dynasty, many kinds of $Y\^{a}e\;Se\^{o}$ by a personal or national edition had been published, based on supports of the political ideology. Especially, in the age of governing by $'Y^{a}e'$ in 16 17c, after completion of publishing $'Oh\;R^{a}e\;Yi(1474),'$ 'Geong Guk Dae Jeon (1469)' in late 15c, norm of $'Ga\;R^{a}e'$ has prevailing and the quantity of publishment of it is more growing. Generally, the contents of these kinds of $Y^{a}e\;Se^{o}$ is intended to interprete the czhu-Ja $'Ga\;R^{a}e'$. and furthermore, some kinds of it, descripted directly architectural institutions as a part of $Y^{a}e\;J^{a}e$ through architectural drawings, with quatating chinese scholar's theory. It can be said that architectural institution on $Y^{a}e\;S^{e}o$ may be a kind of political institution as a tool for execution of a ideal ideology in Confucianism. In this Context, it can be concluded that the governing-class in Cho-Sun Dynasty refered to the architectural institution on $Y^{a}e Se^{o}$ as a ideal norm and, in constructing or organizing buildings, it was taken in account as a 'frame of reference'. The Locus of this study is on architectural drawings on $Y^{a}e\;Se^{o}$, for certifying interrelationship the institution which is executed in the drawings and the architectural characteristics of construction and organization in Cho-Sun Dynasty.

• Journal of the Korean Mathematical Society
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• v.57 no.6
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• pp.1551-1571
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• 2020

This paper is concerned with the following Kirchhoff-Schrödinger-Poisson system $$\begin{cases} -(a+b{\displaystyle\smashmargin{2}\int\nolimits_{\mathbb{R}^3}}{\mid}{\nabla}u{\mid}^2dx){\Delta}u+V(x)u+{\mu}{\phi}u={\lambda}f(x){\mid}u{\mid}^{p-2}u+g(x){\mid}u{\mid}^{p-2}u,&{\text{ in }}{\mathbb{R}}^3,\\-{\Delta}{\phi}={\mu}{\mid}u{\mid}^2,&{\text{ in }}{\mathbb{R}}^3, \end{cases}$$ where a > 0, b, µ ≥ 0, p ∈ (1, 2), q ∈ [4, 6) and λ > 0 is a parameter. Under some suitable assumptions on V (x), f(x) and g(x), we prove that the above system has at least two different nontrivial solutions via the Ekeland's variational principle and the Mountain Pass Theorem in critical point theory. Some recent results from the literature are improved and extended.

• Communications of the Korean Mathematical Society
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• v.35 no.2
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• pp.447-454
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• 2020

The studies of reversible and NI rings have done important roles in noncommutative ring theory. A ring R shall be called QRUR if ab = 0 for a, b ∈ R implies that ba is contained in the upper nilradical of R, which is a generalization of the NI ring property. In this article we investigate the structure of QRUR rings and examine the QRUR property of several kinds of ring extensions including matrix rings and polynomial rings. We also show that if there exists a weakly semicommutative ring but not QRUR, then Köthe's conjecture does not hold.

• Proceedings of the KOSOMBE Conference
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• v.1995 no.11
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• pp.90-94
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• 1995

In this paper, we improved the O-Ring Measurement System(O-R MS) based on oriental constitutional theory of four classes for objectify constitutional diagnosis by O-Ring test method which is one of effective methods in several constitutional diagnosis. The result of using in a half of year, some problems are pointed out. To settle these problems, we improved the actuator, display module, sensor module, and hardware of controller. Also, the software is supplemented to using the more decision parameters. It is estimated to have a high practical use for the objectified constitutional diagnosis.