• 제목/요약/키워드: The values

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퍼지모델을 이용한 인적오류확률의 타당성 검증 (A Validity Verification of Human Error Probability using a Fuzzy Model)

  • 장통일;이용희;임현교
    • 한국안전학회지
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    • 제21권3호
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    • pp.137-142
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    • 2006
  • Quantification of error possibility, in an HRA process, should be performed so that the result of the qualitative analysis can be utilized in other areas in conjunction with overall safety estimation results. And also, the quantification is an essential process to analyze the error possibility in detail and to obtain countermeasures for the errors through screening procedures. In previous studies for the quantification of error possibility, nominal values were assigned by the experts' judgements and utilized as corresponding probabilities. The values assigned by experts' experiences and judgements, however, require verifications on their reliability. In this study, the validity of new error possibility values in new MCR design was verified by using the Onisawa's model which utilizes fuzzy linguistic values to estimate human error probabilities. With the model of error probabilities are represented as analyst's estimations and natural language expression instead of numerical values. As results, the experts' estimation values about error probabilities are well agreed to the existing error probability estimation model. Thus, it was concluded that the occurrence probabilities of errors derived from the human error analysis process can be assessed by nominal values suggested in the previous studies. It is also expected that our analysis method can supplement the conventional HRA method because the nominal values are based on the consideration of various influencing factors such as PSFs.

광주시 상업지 지가의 형성요인에 관한 연구 (A Study on Determinants of Commercial Land Values in Gwangju City)

  • 이현욱
    • 한국지역지리학회지
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    • 제2권2호
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    • pp.159-171
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    • 1996
  • 본 연구는 심각해지는 토지문제를 해결하기 위해 최근에 시행되고 있는 여러가지 토지제도들이 효과적으로 운용되도록 지가를 정확히 산정하고자 하는 움직임에 대한 기초 연구로서, 다른 토지이용에 비해 월등 높은 지가를 보이고 중은 범위에서도 그 변동폭이 큰 상업지를 택하여, 상업지지가의 지역적 차이가 왜 발생하는지 알아보고자 하였다. $1989{\sim}1996$ 동안의 상업지역의 확산은 시 외곽에 빠르게 조성되고 있는 고밀도 아파트 단지를 배후지로 하여 주요 간선도로변을 따라 활발하게 이루어지고 있는 반면, 도심부는 영세한 부지규모 및 노후화한 건물들로 말미암아 급변하고 있는 상업환경의 변화에 능동적으로 대응하지 못하므로서 지가하락 현상을 보이고 있다. 상업지지가와 관련이 있으리라고 예상되는 6개 변수를 이용하여 중다희귀분석을 적용한 결과 보행자 통행량과 도심으로부터의 거리 등 두 변수가 상업지지가 변화량의 65% 정도를 설명해 주었다. 설명되지 않은 35%의 해명을 위해 잔차분석을 행한 결과 도심부의 과소예측, 시 외곽의 과대 예측을 읽을 수 있었는데 이는 광주시의 단핵구조적 특성의 반영일 뿐만 아니라 이 모델이 갖고 있는 한계이다.

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Iodine-131 S values for use in organ dose estimation of Korean patients in radioiodine therapy

  • Yeom, Yeon Soo;Shin, Bangho;Choi, Chansoo;Han, Haegin;Kim, Chan Hyeong
    • Nuclear Engineering and Technology
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    • 제54권2호
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    • pp.689-700
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    • 2022
  • In the present study, iodine-131 S values (rT ← thyroid) were calculated for 30 target organs and tissues using the most recently developed Korean reference computational phantoms. The calculated S values were then compared with those of the International Commission on Radiological Protection (ICRP) reference computational phantoms to investigate the dosimetric impact of the Korean S values against those of the ICRP reference phantoms. The results showed significant differences in the S values due to the different anatomical/morphological characteristics between the Korean and ICRP reference phantoms. Most target organs/tissues showed that the S values of the Korean reference phantoms are lower than those of the ICRP reference phantoms, by up to about 4 times (male spleen and female thymus). Exceptionally, three target organs/tissues (gonads, thyroid, and extrathoracic region) showed that the S values of the Korean reference phantoms are greater, by 1.5-3.7 times. We expect that the S values calculated in the present study will be beneficially used to estimate organ/tissue doses of Korean patients under radioiodine therapy.

한국, 미국, 일본의 가정학 전공 대학생의 궁극적 가치비교 (A Comparison of Terminal Values of Home Economics Students among Korea, USA, and Japan)

  • 홍은실
    • 가족자원경영과 정책
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    • 제1권1호
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    • pp.117-129
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    • 1997
  • This study explored a terminal values of home economics students at Chonnam national university in Korea. And the terminal values of them were compared with those of USA and Japan. Through this, it make to explain the similarities and differences in terminal values among 3 nations. 175 students were adapted as data in Korea. Data of USA and Japan were obtained from Holyoak, Sawai, and Rauniyar(1993). The data were analyzed by frequency, percentage, means, one-way ANOVA, Duncan-test. The results showed significant similarities and differences in terminal values among 3 groups.

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Combining Independent Permutation p Values Associated with Mann-Whitney Test Data

  • Um, Yonghwan
    • 한국컴퓨터정보학회논문지
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    • 제23권7호
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    • pp.99-104
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    • 2018
  • In this paper, we compare Fisher's continuous method with an exact discrete analog of Fisher's continuous method from permutation tests for combining p values. The discrete analog of Fisher's continuous method is known to be adequate for combining independent p values from discrete probability distributions. Also permutation tests are widely used as alternatives to conventional parametric tests since these tests are distribution-free, and yield discrete probability distributions and exact p values. In this paper, we obtain permutation p values from discrete probability distributions using Mann-Whitney test data sets (real data and hypothetical data) and combine p values by the exact discrete analog of Fisher's continuous method.

녹차 및 로즈마리 가루를 첨가한 설기떡의 품질특성 (The Quality Characteristics of Sulgidduk Prepared with Green Tea or Rosemary Powder)

  • 권소영;문보경
    • 한국식품조리과학회지
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    • 제25권2호
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    • pp.150-159
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    • 2009
  • The purpose of this research was to improve the quality of Sulgidduk by additions of green tea or rosemary powder to enhance its functional properties and antimicrobial effects. The green tea or rosemary powders were added to the Sulgidduk at different levels (1 or 3%), and color values, textural characteristics, sensory qualities, pH values, and acetic acid values were evaluated. With higher amounts of green tea or rosemary powder, the L-values of samples decreased and a-and b-values increased. Texture profile analyses indicated that hardness was significantly different among all the samples. The sensory evaluation results showed that the 1% addition of green tea or rosemary powder did not cause significant differences in overall acceptability, flavor, or taste. During storage, pH values decreased in all groups and the control group showed the lowest value. Acetic acid values increased during storage and the control group showed the highest value in the last stage of storage. Finally, the L- and a-values of samples did not change significantly during storage.

The Effects of Clothing Consumption Values and Subjective Age on the Fashion Adoption of Elderly Women

  • Kim, Ji-Yeon;Jun, Dae-Geun;Oh, Kyung-Wha
    • 한국의류학회지
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    • 제34권6호
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    • pp.1008-1020
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    • 2010
  • This study investigates the effects of clothing consumption values and subjective age on fashion adoption. To explain the fashion adoption of elderly women, 5 dimensional consumption values were adopted as explanatory factors, and subjective age is included as a moderating factor. This study tested the relationship of variables with survey data from a convenient sample of elderly women. A total of 235 complete responses were obtained from women between 50 and 71 years of age. The results are as follows. First, factor analysis on clothing consumption values resulted in 5 dimensional structures of consumption values for the sample (epistemic, symbolic, harmonic, popular, and practical values). A factor analysis on subjective age resulted in 2 dimensions (physical and mental age). Second, epistemic, popular, harmonic (-) and symbolic values (except practical value) significantly affected fashion adoption. Third, the epistemic value was the strongest factor regardless of physical and mental age but the effects of epistemic, popular, harmonic, symbolic, and practical values changed depending on the level of the moderating factor.

가축분뇨수의 색소오염물질 분해과정 측정 영상처리 시스템 (Image Processing System for Measuring the Chromatophore Pollution Solution of and Animal Slurry Using Optical-Density)

  • 이대원;김현태;김용석;민병로;이강춘;박은석;한정환;이수희;김정동
    • 한국축산시설환경학회지
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    • 제7권2호
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    • pp.103-110
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    • 2001
  • This study conducted to monitor decomposition process of the charomatophore pollution solution of an animal slurry by using a CCD camera. After the solution was put into test tube, the images(R, G, B, H, L, S) values of the solution were measured by the imgae processing system, and those of it\`s optical density were measured for three hours to be decomposed by microscopic organism. The values of measured for three hours to be decomposed by microscopic organism. The values of measured images(R, G, B, H, L, S) were analysed and compared with those of the optical density. Some of the results are as follows. 1. High correlation coefficients, which analyzed by using data on linear equations, were 0.9557 and 0.9672. They were decreased regularly in this R-value experiment of RGB level. The microscopic organism in this experiment was effective for decomposition of the red charomatophore pollution solution. 2. The values of all correlation coefficients from relationship between RGB-value and optical density were more than 0.95 except H-values. RGB-values, which were average values of summed R, G, B values, had correlation coefficients of 0.9863, 0.9937. These results showed so good relationship that decomposition process of charomatophore pollution solution could be monitored by a image processing system.

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Exploring Sustainable Values in Upcycled Korean Fashion Brands through Their Corporate Activities

  • Haemin Yu;Jaehoon Chun
    • 한국의류학회지
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    • 제47권3호
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    • pp.425-441
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    • 2023
  • Over the past few years, the fashion industry has faced numerous environmental issues and sustainability is being promoted as the key to success. This study conducted in-depth interviews with a range of stakeholders, such as designers and marketing professionals from upcycled Korean fashion brands, to examine how their sustainable values are reflected and developed through corporate activities related to planning, production, promotion, and distribution. The sustainable values inferred from the interviews were coded based on Schwartz's universal values with a view to addressing conflicts of values and promoting the sustainability of upcycled fashion brands in Korea. Through this process, the study derived universalistic, economic, and self-oriented sustainable values. The study also proposed a conceptual framework for upcycled fashion brands by discussing difficulties and limitations and offer proposals that could help the industry. The results indicate that a key driver for market success is promoting sustainable values in upcycled fashion. Finally, suggestions are offered for follow-up research that can further support sustainable practices in the fashion industry.

패션 사회적 기업의 지속가능성을 위한 사회적 자본 및 공동체의식 형성에 대한 연구 (The Study on Social Capital and Community Sense Formation for the Sustainability of Fashion Social Enterprises)

  • 나윤규
    • 패션비즈니스
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    • 제19권5호
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    • pp.157-174
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    • 2015
  • This research intends to observe the effects of social capital regarding fashion social enterprises on the community sense of participating consumers, and verify the relationship of the effects that such social capital and community sense have on sustainability formation variable(shared values, suitability of values, behavioral flow, cognitive belief and long-term relationship orientation) of social enterprises. For such analysis, a sample of 400 consumers with experience of purchasing products of fashion social enterprises more than once was utilized, and path analysis was conducted utilizing AMOS 20.0. As a result of this research, first, information sharing, social participation among the characteristic factors of social enterprises' social capital had a meaningful impact on shared values, and self-pursuit and significance meaningfully affected the suitability of values. Second, mutual influence, sense of belonging, satisfaction of needs and emotional bond among the characteristic factors of community sense between social enterprises and consumers meaningfully affected shared values, whereas mutual influence, sense of belonging and emotional bond substantially influenced suitability of values. Third, shared values and suitability of values affected the relationship between behavioral flow and cognitive trust, and behavioral flow and cognitive trust both had meaningful impact on long-term relationship orientation.