• Journal of the Korean Data and Information Science Society
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• v.20 no.6
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• pp.1015-1027
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• 2009

Many problems of confounding and identifiability for polynomial models in an experimental design can be solved using methods of algebraic geometry. The theory of $Gr\ddot{o}bner$ basis is used to characterize the design. In addition, a fractional factorial design can be uniquely represented by a polynomial indicator function. $Gr\ddot{o}bner$ bases and indicator functions are powerful computational tools to deal with ideals of fractions based on each different theoretical aspects. The problem posed here is to give how to move from one representation to the other. For a given fractional factorial design, the indicator function can be computed from the generating equations in the $Gr\ddot{o}bner$ basis. The theory is tested using some fractional factorial designs aided by a modern computational algebra package CoCoA.

• The Mathematical Education
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• v.9 no.2
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• pp.1-46
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• 1971

In this report. it is assumed in the first chapter. various motives for modernizing of school mathematics can be indicated as the development of modern mathematics the highly advanced technology. the emergence of computor, and the progress of symbol logic. It is also confirmed that its modernizing process contains the modernization of contents in school mathematics. the broad application of school mathematics. the intellectualization of school mathematics. and the variation of its educational process. And the following chapter of this report is composed of the comparative study on the modernizing tendency of school mathematics among the SMSG of U. S. A., the mathematical education in France. and the late tendancy of Japan. The most significant part of the report is the chapter which propose the new program for school mathematics. It establishes the direction of school mathematics and its purpose. And at the same time it divides its fundamental conceptions into six parts according to school grades; the number. the operation. the functional relation. the quality and measure, the geometry, and the statistics. For the perspective of school mathematics, it is probable that the program for education and training of teachers could be realized, if it were spported by the system of specializing teachers and of functional teachers with advanced technology of education. Particularly the education of teachers contains the training of teachers as well as educational administrators or parents. Finally, the report concludes that the necessity of research required for the development of school mathematics must be emphasized in regard to the established program of teacher training.

• Journal of the Korean Society of Hazard Mitigation
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• v.9 no.4
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• pp.29-35
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• 2009

In this study, quantitative homogeneity analysis was performed between rainfall observation data set of Chukwooki(CWK) and rainfall observation data set of modern rain gage(MRG) using statistical methods such as basic statistics, K-S test and Boxplots. To analyze the homogeneities of CWK and MRG four rainfall characteristic series such as monthly rainfall, the ratio of maximum daily rainfall to monthly rainfall, number of rainy days for each month, and the ratio of monthly rainfall to numbers of rainy days are made, and the homogeneity tests using two sample K-S test and quantitative comparisons were performed. The test results showed that observation precisions between CWK and MRG of original data set(M00) were differed because M00 clearly showed the statistical significances on differences of numbers of monthly rainy days of CWK and MRG. But, rainfall showed a little differences which were not significant between CWK and MRG.

• The Korean Journal of Applied Statistics
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• v.24 no.6
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• pp.1007-1020
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• 2011

Since the research of Black and Scholes (1973), modeling methods using diffusion processes have performed principal roles in financial engineering. In modern financial theories, various types of diffusion processes were suggested and applied in real situations. An estimation of the model parameters is an indispensible step to analyze financial data using diffusion process models. Many estimation methods were suggested and their properties were investigated. This paper reviews the statistical properties of the, Euler approximation method, New Local Linearization(NLL) method, and Generalized Methods of Moment(GMM) that are known as the most practical methods. From the simulation study, we found the NLL and Euler methods performed better than GMM. GMM is frequently used to estimate the parameters because of its simplicity; however this paper shows the performance of GMM is poorer than the Euler approximation method or the NLL method that are even simpler than GMM. This paper shows the performance of the GMM is extremely poor especially when the parameters in diffusion coefficient are to be estimated.

• Journal of Chest Surgery
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• v.25 no.10
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• pp.989-1000
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• 1992

The concepts of modern type computer are so called "General purpose, stored program and digital computer" that is proposed by Charles Babbage. ENIAC, the initial operational electronic digital computer model, was produced in 1946. During the last 50 years, an epoch-making development of the personal computer was marked. The computerization of all levels of society is going on and also computerization of the general hospital and medical college is developing. But patient data management system for clinician is not used generally. We suggest the use of computer aided data management application programs for the clinical informations of the patients of the Department of Thoracic and Cardiovascular Surgery for better management and to make best of medical informations, to co-operate with the current of this times, and to prepare against the Hospital Information Systems[HIS], actively. Also, we suggest to standardize the format and structure of database files to store the clinical data of the patients By standardization of the database files, we can integrate and relate the data of the individual department or hospital, build up the regional or national statistics of the patients easily, and promote the generation of application programs. The medical network by the communication and computer would be utilized to collect the database files. And finally, we suggest the use of code system to input and search the informations about the diagnosis and operation such as the code system of International Classfication of Disease[WHO] and the table of the classfication of operation of the Ministry of Health and Social Affairs, Korea. In this article, we tried to show the new standards, the essential items for computerization of clinical informations of the patients of the Department of Thoracic and Cardiovascular Surgery.r Surgery.

• The Research Journal of the Costume Culture
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• v.23 no.5
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• pp.822-834
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• 2015

Contemporary fashion companies have been planning marketing strategies that can promote brands and products more effectively for satisfying consumers' increasingly diversified needs. For this reason, retail spaces have continued to evolve and the modern concept of pop-up stores appeared through this process. Therefore, the object of this study was to research domestic pop-up fashion store cases by collecting article data. These data are from Internet fashion-specialty sites and analyze the types and characteristics of pop-up fashion stores by providing basic information that will be useful in the pop-up fashion stores of companies when they establish their marketing strategies. This study utilized the content analysis method and derived the results by using SPSS Statistics. As a result of this study, the type of "pop-up fashion stores opening in distribution enterprises" comprised the highest percentage of the whole store types and the pop-up fashion stores' management purposes were focused on product introduction, promotion, and market testing. As time passed, not only did pop-up fashion stores' growth rate increased, but also the types of pop-up fashion stores have become more diverse. In other words, contemporary fashion companies are utilizing more pop-up fashion stores as a marketing strategy than before. However, due to the short history of domestic pop-up fashion stores, the variety of research is still insufficient, so more extensive research on pop-up fashion stores is required.

• Journal of dental hygiene science
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• v.18 no.1
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• pp.24-31
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• 2018

This study investigated the effects of critical thinking and empathy on the cultural competence of dental hygienists and students. A total of 529 dental hygiene students were randomly sampled and included as subjects. PASW Statistics for Windows ver. 18.0 was used to obtain the following results. Among the critical thinking sub-domains, cognitive integration was the highest and the lowest. Empathic ability had the highest acceptance factor among the sub-domains. Cultural competence was the highest among the sub-domains, while cultural knowledge was the lowest. According to their general characteristics, subject age, grade, religion, and economic level influenced the cultural capacity. Cultural awareness and sensitivity were high when there were foreign visiting experiences. Cultural awareness, sensitivity, skills, and knowledge were high when subjects had experienced multicultural education (p<0.05). Cultural awareness, sensitivity, skill, experience, and knowledge were correlated with critical thinking and cultural competence, among which cultural sensitivity showed the highest correlation (p<0.001). There was a correlation between cultural awareness and sensitivity, skill, and experience among the empathy and cultural competency sub-domains (p<0.001). The factors influencing cultural awareness included intellectual integration, openness, prudence, and perspective-taking (p<0.001). The factors influencing cultural sensitivity included intellectual integration, openness, and empathic concern (p<0.001). The factors influencing cultural skill included intellectual integration, creativity, and conductivity (p<0.001). The factors influencing cultural experience included prudence, objectivity, perspective-taking, and personal distress (p<0.001). Finally, the factors influencing cultural knowledge included creativity and conductivity (p<0.001). The results indicate that dental hygiene students should be equipped with cultural competence to enhance critical thinking and empathy required by the modern society and optimized dental hygiene courses should be provided for multicultural subjects.

• Journal of the Korea Fashion and Costume Design Association
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• v.22 no.1
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• pp.97-111
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• 2020

Classifying clothing fabrics into fashion images lacks research, but is necessary due to the short cycle of fashion and rapidly changing modern trends as consumers seek to satisfy various needs with an increase of online purchases. There is also a lack of research on fashion trend books which attach real fabrics. Therefore, this study aims to help the planning field by recognizing fabric sensibility related to the fabric image perceived by consumers. The data analysis results from descriptive statistics, t-test, and ANOVA using SPSS are as follows: Differences in the visual tactility evaluation related to the consumer recognized fabric images showed more significant differences in F/W seasons. The elegance image was shown as relatively thick, the avant-garde image was shown as relatively heavy, thick fabric. The feminine image was shown as relatively thin and smooth fabric, the sporty images were shown to be moist, flexible and elastic, and the mannish images were relatively rough. The romantic images were shown as relatively thin fabrics. The conclusions inferred from the visual tactile evaluation related to the fabric images recognized by consumers vary by major, so the prior information concerning fabrics and trends can affect the selection of images. The results of this study show that in order to produce clothes suitable for fashion product planning by learning about visual tactility that consumers recognize, fabrics component data displayed in fashion trend books from 2016 to 2018 are needed, so the planner can receive help when selecting the fabrics suitable for each trend.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.306-319
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• 2010

Recently, crime prevention is away of important criminal justice policy and police activity also pursuit different change compare to the present times. After modern times, as get to know crime control change, eventually on the basis of experience that crime prevention is best way of crime control, what come out with new sight angle for the role of police is community policing. And emphasis points in police activity are variety of police activity, positive entry of community. In relation to this, we are learning crime prevention of the U.S.A and the program of community policing through crime prevention theory books that published in domestic. Then, there are misunderstanding possibilities that the programs which introduced relation books are doing someways all around the U.S.A In this research two cities san mateo county. california, of the U.S.A made a choice, and is going to search main crime present condition of these cities and really done community policing program or crime prevention program operation case.

• Smart Structures and Systems
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• v.4 no.2
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• pp.209-220
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• 2008

A methodology for the seismic vulnerability assessment of historical monuments is presented in this paper. The ongoing work has been conducted in Tunisia within the framework of the FP6 European Union project (WIND-CHIME) on the use of appropriate modern seismic protective systems in the conservation of Mediterranean historical buildings in earthquake-prone areas. The case study is the five-century-old Zaouia of Sidi Kassem Djilizi, located downtown Tunis, the capital of Tunisia. Ambient vibration tests were conducted on the case study using a number of force-balance accelerometers placed at selected locations. The Enhanced Frequency Domain Decomposition (EFDD) technique was applied to extract the dynamic characteristics of the monument. A 3-D finite element model was developed and updated to obtain reasonable correlation between experimental and numerical modal properties. The set of parameters selected for the updating consists of the modulus of elasticity in each wall element of the finite element model. Seismic vulnerability assessment of the case study was carried out via three-dimensional time-history dynamic analyses of the structure. Dynamic stresses were computed and damage was evaluated according to a masonry specific plane failure criterion. Statistics on the occurrence, location and type of failure provide a general view for the probable damage level and mode. Results indicate a high vulnerability that confirms the need for intervention and retrofit.