• Proceedings of the Safety Management and Science Conference
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• 2011.04a
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• pp.675-693
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• 2011

We compare three Techniques control systems with The Investigate Study on the relation between Multivariate SPC and Autoregressed Algorithm. We also investigate Autoregressed Algorithm with relevant EWMA, CUSUM, Shewhart chart, Precontrol chart and Process Capacity.

• Journal of the Korean Society of Clothing and Textiles
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• v.19 no.1
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• pp.23-35
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• 1995

The purposes of this study were to investigate the schema of jeans and to investigate the relation between jeans schema and fashion jeans wear. The specific objectives were; 1) to investigate the schema of jeans and the schema of fashion jeans; 2) to investigate the relation between the schema of jeans wear and demographic variables.; 3) to investigate the relation between the schema of fashion jeans and demographic variables; 4) to investigate the difference of the schema of jeans from the schema of fashion Jeans. The moi or findings were: 1) The schema of jeans was composed of 5 factors; casual, comfort, indivisuality, economic, unisex . 2) The schem of fashion jeans was composed of 4 factors; popularity, indivisuality, comfort, casul. 3) The schema of jeans and fashion jeans was affected more by age and marriage than job and educational level. Especially age 30-34 were important parts in market segmentation strategy of jeans. 4) As compared with the schema of jeans and the fashion jeans concept, casual, comfort were important part in the schema of jeans and popularity, indivisuality was important part in the schema of fashion jeans. As the tendency of fashionable of jeans wear, consumers concept of jeans changed to popular, characteristic.

• Journal of the Korea Institute of Building Construction
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• v.4 no.2
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• pp.81-88
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• 2004

The purpose of this study is to investigate the chemical shrinkage and autogenous shrinkage of high strength cement paste and silica fume and fly ash and sand to cement ratio by the method of volumetric tests, and also investigate the autogenous shrinkage of high measurement method, and compare the results of volumetric test and linear length measurement test. A series of cement paste which have W/C ratio of 25%, 35%, 45% respectively were planed to study the effect of the W/C ratio to the shrinkages, and a series of cement paste which were replaced the cement by the silica fume and fly ash with 5%, 10%, 15% as the mass of cement respectively were planed to investigate the effects of poazolana to the shrinkages. A series of mortar which have a C/S ratio of 1:1, 1:1.5, 1:2 respectively were planed to investigate the shrinkage resistant effect of aggregate.

• Journal for History of Mathematics
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• v.15 no.3
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• pp.65-74
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• 2002

In this paper we investigate an origin and development of the classical theory of probability. And we also investigate the law of large numbers and central limit theorem which are very important in tile probability theory.

• Journal of the Korean Society of Clothing and Textiles
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• v.18 no.1
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• pp.31-42
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• 1994

The purpose of this study was to investigate the effect of feeling distance of clothes in the person perception. The specific objectives were: 1) to investigate whether the compositions of clothes affect the rate of detouring, ; 2 ) to investigate whether the gender compositions of dyads affect the rate of detouring, ; 3) to investigate whether the distance between members of dyads affect the rate of detouring. ; 3) to investigate whether the distance between members of dyads affect the rate of detouring. ; 4) to investigate the .effect of the interaction among the compsitions of clothes, the gender compositions, and the distance between members of dyads in the person perception. For this study, two male and two female undergraduates were selected and wore business suit or casual wear as given by the researcher. The distance between members of dyads ranged from 100cm to 170cm with an increment unit of loom. The data from our observation were analysed by x2-test, ANOVA, and MCA. The major findings were ; 1) In male/male dyad, distance perception from clothes were affected by the compositions of clothes at all distance. In maleffemale dyad, when the distance between members of dyad is short, distance perception from clothes were affected by the compositions of clothes modes, 2) When two members of dyad wear business suit, distance perception from clothes were affected by the gender composions of dyads. 3) Distance perception from clothes were affected by distance factors at all the gender compositions of dyads. 4) In the person perception, the most imprtant clue was the distance between members of dyads. The pllysical distance, which was formed by clothes, was between 130cm and 140cm.

• Journal of Acupuncture Research
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• v.15 no.2
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• pp.183-198
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• 1998

This study was done in order to present clinical trial method for safety of herb-acupuncture. The results were summerized as follow: In case of western medicine, clinical trial divides into four phase 1. Phase I: Investigate safety and drug movement for health people. 2. The first phase II: Investigate safety, effectiveness for the limited patient. The late phase II: Investigate propriety of an applicable disease, the way to use and dose. 3. Phase III: Through the comparative, public trial, investigate a final, applicable disease and side effect. 4. Phase IV: After NDA, investigate safety and effectiveness for the wide patients. In case of herb-acupuncture, we have to investigate the following for safety and effectiveness 1. Drug dose: Decide with 1/2 or 1/3 of oral dosage or a basis of animal's of maximum dosage or a ratio of man and animal. 2. Toxicity: Examine blood, urine, liver function, EKG, after herb-acupuncture during acertain period of time. 3. Regional response: Estimate response of swelling, redness, pruritus. etc 4. Treatment effectiveness: After exactly diagnosis, estimate effectiveness with a objective guide post.

• Bulletin of the Korean Mathematical Society
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• v.37 no.4
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• pp.697-710
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• 2000

We investigate the existence of solutions of the nonlinear heat equation under Dirichlet boundary conditions on $\Omega$ and periodic condition on the variable t, $Lu-D_tu$+g(u)=f(x, t). We also investigate a relation between multiplicity of solutions and the source terms of the equation.

• Honam Mathematical Journal
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• v.34 no.4
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• pp.533-548
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• 2012

We investigate relations of polynomials $x^n={\Sigma}^{n-1}_{i=0}x^i$ and recurrence sequences. We consider certain variations of the Fibonacci sequence and investigate explicit ways to compute the general nth term.

• Korean Journal of Mathematics
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• v.28 no.2
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• pp.311-321
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• 2020

In this paper, we investigate the properties of residuated connections and Alexandrov topologies based on [0, ∞]. Under various relations, we investigate the residuated and dual residuated connections on Alexandrov toplogies. Moreover, we study their properties and give their examples.

• Journal of the Korean Institute of Intelligent Systems
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• v.10 no.5
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• pp.513-519
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• 2000

In this paper, we investigate some properties of fuzzy r-cluster points and fuzzy r-limit points in smooth fuzzy topological spaces. We define fuzzy r-convergent nets and investigate some of their properties.