• Journal of the Korean Data and Information Science Society
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• 제21권3호
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• pp.555-560
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• 2010

One-dimensional approach to two-dimensional warranty data involves modeling us- age as a function of time. Iskandar (1993) suggests a simple linear model for usage. However, simple linear form of intensity function is of limited value to model the situa-tion where the intensity varies over time. In this study Weibull intensity is considered where the scale parameter is expressed in terms of different models. We will nd out how each parameter in the model a ects the warranty cost and which model gives a bigger number of failures within the two-dimensional warranty region.

• Journal of the Korean Society of Costume
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• 제44권
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• pp.91-101
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• 1999

The purpose of this study was to examine the hiphop fashion which has the leading power of 1990's korean fashion flow. Hiphop Fashion represents individuals' unique characters and their culture. Baggy jeans with extra large shirts, various accessories, and a unique coordination of these items that is all their own represents the style that is hiphop. There are three major reasons why hiphop fashion has become so popular in the 1990's. First, the popularity of hiphop music whose singers directly influence the public. Second, the popularity of sports and sporting heros. These athletes' sporty Hiphop looks has amply shown that are also leaders of the hiphop fashion. Third, mass media like TV and many publications, defivitely helped to quickly spread hiphop all over the world. Music only TV stations like MTV and StarTV are good examples. Fashion always tells us much - as every anthropologist knows - and a thoughtful analysis of hiphop will reveal many interesting, and perhaps even surprising things about the men and women who wear it.

• Language and Information
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• 제8권2호
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• pp.1-25
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• 2004

This paper examines two different approaches to resolving a theoretical problem which the bottom-up approach version of Discourse Representation Theory of Kamp et al. (2003) faces in dealing with anaphoric relations between pronouns and their potential antecedents in conditional sentences where consequent clauses precede their corresponding conditional clauses. In one of the approaches, every element is processed in the order of occurrence and conditional operators in a non-sentence-initial position cause the ongoing DR to split in two with the same index. The definition of accessibility is accordingly modified so that the right DR can be accessible from the left DR. In the other approach, a different type of discourse representation structure, K ${\Leftarrow}$ K, is introduced, which allows us to resolve the target problem without modifying accessibility proposed in Kamp et al. (2003). Compatibility of these two approaches with the bottom-up version of DRT is evaluated by examining their applicability to the analysis of quantified sentences where pronominal expressions precede generalized quantifiers.

• English Language & Literature Teaching
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• 제12권2호
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• pp.153-176
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• 2006

This paper examines "Difference in Requests." The study of speech acts is a crucial area in sociolinguistics and ethnolinguistics, and has aided in the development of TESOL. It also provides a useful means of relating linguistic form and communicative intent. This paper concentrated on 3 request strategies, which were requests made with an explanation, requests made without an explanation and no requests. The purpose of this study, and of concern in TESOL, was to discover whether Koreans framed their requests differently under different conditions. Based on these differences, I wanted to ascertain whether Koreans who spoke English as a second language, and who have lived in the United States, frame their requests as they would in their native tongues thus creating the potential for sociolinguistic failure, or use American sociolinguistic style. As the results of the study, it was found that in the majority of cases, Americans made an explanation with a request. In many cases the Koreans living in Korea would not give an explanation when making a request. Rather, they were direct in request. In many cases the Korean speaking English and living in the US had adopted the American request strategy of giving an explanation.

• English Language & Literature Teaching
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• 제13권4호
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• pp.153-165
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• 2007

The story treats each individual's vision as well as social reality that the author intends to describe. The purpose of this article is to search for the conflict between vision and reality, especially in feminist problem that critics have treated on the works of women writers. Though some articles have studied on the issue similar to this article, I try to analyze the narratives in the text that the author herself confesses to us. I think that we can find out clear messages from the individuals who construct the human relationship and build up their personal history through their dialogue or monologue. We can also catch their main problems in the community. I discuss the topic by mentioning the detailed discourses referred to the heroine and other characters in the text. The passages mentioned by the characters in the story may be a confession for the present and future generation that the author tries to confess. From the excerpts of some discourse, I can conclude that though Dorothea has a vision for her ideal, she is a failed feminist, for society is too strong for her as Miller (1990) argues.

• Journal of Korean Society for Atmospheric Environment
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• 제24권E1호
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• pp.44-53
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• 2008

This study was undertaken to measure the properties of individual mineral particles in an artificially saturated atmosphere at a vertical extinct mine with 430 m height. By synchrotron radiation X-ray fluorescence (SR-XRF) microprobe analysis, it was possible to determine the elemental composition of residual insoluble particles on individual cloud droplet replicas formed on the Collodion film. The XRF visualized elemental maps enabled us not only to presume the chemical mixing state of particles retained in cloud droplet, but also to estimate their source. Details about the individual mineral particles captured by artificial cloud droplets should be helpful to understand about the removal characteristics of dust particles such as interaction with clouds. Nearly all individual particles captured in cloud droplets are strongly enriched in Fe. Mass of Fe is ranged between 41 fg and 360 fg with average 112 fg. There is a good agreement between single particle analysis by SR-XRF and bulk particle analysis by PIXE.

• The Korean Journal of Applied Statistics
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• 제25권4호
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• pp.575-587
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• 2012

The effect of a new treatment is proven through the comparison of a new treatment with placebo; however, the number of parent non-inferiority trials tends to grow proportionally to the number of active controls. In a non-inferiority trial a new treatment is approved by proof that the new treatment is not inferior to an active control; however, both additional assumptions and historical trials are needed to show (through the comparison of the new treatment with the active control in a non-inferiority trial) that the new treatment is more efficacious than a putative placebo. The two different methods of using the historical data: frequentist principle method and meta-analytic method. This paper discusses the statistical methods and different Type I error rates obtained through the different methods employed.

• Proceedings of the Korean System Dynamics Society
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• 한국시스템다이내믹스학회 2000년도 학술대회발표논문집
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• pp.29-37
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• 2000

In this paper an attempt is made to understand contribution factors in the field of electronic commerce(EC). To do that, we adopt and modify an existing commerce model. The following two major conclusions are drawn from our simulation. Most of all, the diminution of information delay introduce monotonous growth rather than fluctuation of EC market. The stable increase of revenue or market scale makes us decide the employment or capacity scale quickly. Second, for favorable and continuous evolution of EC, utilization system of electronic money should be established steadily. The following findings strongly support our claim: We found full oscillation of EC market when electronic money system didn't established well. On the contrary, if electronic money system could provide fast cash flow and fully trustful function, decisions of company or consumer would be executed promptly.

• International Journal of Human Ecology
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• 제17권2호
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• pp.31-42
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• 2016

We examine the self-control problems of U.S households and their effects on households' retirement preparedness based on the Behavioral Life-Cycle Hypothesis. Using the 2010 Survey of Consumer Finances dataset, the level of retirement adequacy was estimated with income replacement ratio (IRR), and only 42% of households were adequately prepared for retirement. Results from logistic regression analysis indicated that households with loan payment and saving self-control problems were less likely to be prepared adequately for retirement compared to those without such problems. Age, education, race/ethnicity, marital status, employment status, retirement plans, expected retirement age and risk tolerance were significantly related to retirement preparedness. This study provides financial educator and researchers with suggestions on how to help household make a better retirement plan.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• 제17권3호
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• pp.114-119
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• 2004

Background: Atopic dermatitis is chronic exzemaous dermatosis characterized by severe itching, licalized eruption and chronic relapsing progress and has familu history of atopic diseases and hereditary disposition. This Study is attempted in order to estimate of possibility of oriental treatment on atopic dermatitis. Objective: We studied 24 years old women with atopic dermatitis from June 2004 to July 2004 Method: We treated her with herb medication and used three index to assess the severity of atopic dermatitis. Results: Each index show us about 50-60$\%$ of improvement Conclusion: On the basis of this study, It should be considered that treatment of atopic dermatitis should be focused on fever of yang-ming.