• Journal of the Korean Mathematical Society
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• v.45 no.2
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• pp.377-392
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• 2008

Let X be a real reflexive Banach space with a uniformly $G\hat{a}teaux$ differentiable norm, C a nonempty closed convex subset of X, T : C $\rightarrow$ X a continuous pseudocontractive mapping, and A : C $\rightarrow$ C a continuous strongly pseudocontractive mapping. We show the existence of a path ${x_t}$ satisfying $x_t=tAx_t+(1- t)Tx_t$, t $\in$ (0,1) and prove that ${x_t}$ converges strongly to a fixed point of T, which solves the variational inequality involving the mapping A. As an application, we give strong convergence of the path ${x_t}$ defined by $x_t=tAx_t+(1-t)(2I-T)x_t$ to a fixed point of firmly pseudocontractive mapping T.

• Journal of the Korean Mathematical Society
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• v.50 no.6
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• pp.1165-1181
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• 2013

In this paper, we consider a class of periodic It$\hat{o}$ stochastic delay differential equations by using the properties of periodic Markov processes, and some sufficient conditions for the existence of periodic solution of the delay equations are given. These existence theorems improve the results obtained by It$\hat{o}$ et al. [6], Bainov et al. [1] and Xu et al. [15]. As applications, we study the existence of periodic solution of periodic stochastic logistic equation and periodic stochastic neural networks with infinite delays, respectively. The theorem for the existence of periodic solution of periodic stochastic logistic equation improve the result obtained by Jiang et al. [7].

• The Research Journal of the Costume Culture
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• v.10 no.1
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• pp.1-12
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• 2002

The purpose of this study is to manifest the clothing-related dreams and to classify those in terms of the theme. The analysis of dreams which is inherent to Korean nationality can determine which dream is good or bad to men. The factors which influence the empirical way of interpreting dreams are following : the wearing of hat, the appearance, the color, length, and material of costume, the wearing of belt, the wearing of shoes, the wearing of socks, the acquiring of accessories, the cosmetic apparatus and sewing apparatus, the washing of costumes. They are predictive and traditional in Korean nationality.

• Korean Journal of Human Ecology
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• v.11 no.3
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• pp.301-306
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• 2002

The purpose of this research is to provide basic data by which more suitable hats manufacturing can be possible. The method for this research was to ask male and female college students what their favorite design and size are by the questionnaire. Data were collected from 383 college students in Seoul, Iksan. Statistical tests such as descriptive analysis, Crosstabs, F-test, Duncan test, were used to analyze the data. The conclusion which gotten through this process is that, first of all, their favorite design is Apollo cap, and there is no difference between male and female college students. Then, It also appeared that most of them didn't know their own hat size, but responded that their hats are suitable for their heads, it means that they are contented with their hats. Yet, those positive responses are, in some part, due to the insufficiency of the questions that can point out negative responses.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.10a
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• pp.431-433
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• 2007

In This paper, we present a texture clustering method to extract Container ISO code in complex images. First, we make texture informations using top-hat morphology from realtime images, and we cluster those informations using horizontal and vertical clustering method to extract text area. After extensive experiment, our method demonstrated superior performance against well-known techniques as texture and histogram method.

• Journal of Biosystems Engineering
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• v.25 no.1
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• pp.25-32
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• 2000

Motivated by the need for developing the more efficient lighting system for light culture in the greenhouses, this paper aims to predict the illumination of incandescent lamp according to various levels of lighting and various kinds of the lamp. The results obtained in this experiment are summarized as follows. 1. The general equation to predict the illumination according to the kind of incandescent lamp and the installation height was suggested as {{{{y= { a + bx+ cx^2} over { 1+dx+ex^2~ + fx^3} [lx]}}}} , where , a, b, c , d, e and of were arbitrary constants. 2. Maximum illumination of hat-covered lamp of 60 W was 1.2 -1.5 times as many as uncovered lamp. 3. Maximum illumination of yellow color painted lamp of 100 W was 1.3 times as many as unpainted lamp.

• Transactions of the Korean Society of Automotive Engineers
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• v.22 no.2
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• pp.52-59
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• 2014

Front impacted SUV vehicle shows that the front parts of side members are collapsed by the bending due to the transverse load exerted at the end of side members. Side member models were impacted with various angles in order to study the crash performance according to the impact angle. Even for the small impact angle of $10^{\circ}$, crash performance seriously deteriorated and the deformations for impact angle $15^{\circ}$ were similar to those from the front body impact analysis. In addition, the angled front impact analysis for the straight member with hat section was carried out and the effects of inner reinforcement shape on crash performance was investigated.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.21 no.6
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• pp.892-896
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• 2012

CFRP composites with light weight, high strength, and high elasticity by comparing with metal are widely used rather than previous steel plates. However, CFRP composite material has the weakness at hydrothermal and collapsed impact environment. Especially, moisture absorption into composite material can change molecule arrangement and chemical properties under hydrothermal environment. And static collapse experiment is the research in the differences of absorbed energy and deformation mode between moisture and non-moisture absorbed specimens. This study is compared and analyzed on the progress change of moisture absorption ratio after setting up the temperatures of 60 and 80 degrees C in order to comprehend how the change in the temperature influences on moisture absorption status inside CFRP composite materials.

• Animal Systematics, Evolution and Diversity
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• v.34 no.1
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• pp.50-59
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• 2018

Two Campylaspis species, C. amblyoda $Gam\hat{o}$, 1960 and C. reticulata $Gam\hat{o}$, 1960, are redescribed as new to Korean cumacean fauna. Campylaspis amblyoda is characterized by having a carapace with five or six pairs of pellucid spots on dorsal surface, a pair of projections near proximal portion of frontal lobe, and lacking sulcus on lateral portion. Campylaspis reticulata is easily distinguished from its congeners by having a pair of broad sulcus and several large reticulations on lateral portion of carapace. The collected Korean specimens were congruent with the original descriptions, except for several minor differences. Herein, we add two Campylaspis species to the Korean cumacean fauna. The female of C. reticulata is described for the first time. A key to the Korean Campylaspis species is also provided.

• Journal of the Korean Society for Library and Information Science
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• v.1
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• pp.77-102
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• 1970

The writer discusses about the value of the two-volume Chuchih $Ch'unch\hat{e}ng$ in the Toyo Bunko in terms of its history and contents. The book is an incomplete reprint without preface. However, it has no error in its contents through the three elaborate revisions. The writer defines the book as a scientific and religious work. The author shows in the first volume his hypothesis, analysis, and conclusion, of the order of the things in the universe and in the second volume tries to prove the God's existence and Divine Providence. The proofs presented are related to the scientific thoughts of the West in the 17th century.