• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.645-650
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• 2007

According to most studies, assessment of aging structure is trend to detect flaw size by sensor than using existing subjective evaluation by expert for objective evaluation. But Uncertainties existing in the sensor make difference between measured flaw size and actual flaw size, In this paper, Probability of Detection(POD) have been used to quantify the uncertainties and POD is updated by relationship measured flaw size and actual flaw size (Heasler, 1990), also we proposed probabilistic updating approach method to improve measurement accuracy(the difference of measured PDF and actual PDF) by using updated POD.

• 대한전자공학회논문지SP
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• 제47권4호
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• pp.69-78
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• 2010

대역분할 부호화방식의 표준인 비가역 9/7 JPEG2000의 경우 0.15bpp 이하에서 양자화 손실로 배경과 에지 부분에서 급격한 화질 왜곡이 발생하는 문제점을 갖고 있다. 본 논문에서는 이러한 문제를 해결하기 위해 고주파대역들의 L-pdf(Laplace probability density function) 통계특성을 이용한 VQ(Visual Quantizer)를 제안하였다. 제안된 VQ는 재생영상의 화질왜곡을 최소화하기 위한 비주얼파라메타와 효율적인 비트율 감축을 위한 가중치 파라메타를 각각 사용하여 설계되었다. 실험결과 제안된 VQ는 0.15bpp이하에서도 재생영상의 시각적 손실을 최소화하면서 재생영상의 화질왜곡 기준척도인 MSE(Mean-Squared Error)도 최소화 할 수 있었다.

• 한국식품영양학회지
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• 제29권6호
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• pp.952-961
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• 2016

The objective of this study is to examine the effects of consumer beliefs regarding three food certifications on their behavioral intention and the behavioral intention biases to purchase (purchasing intention biases) certified agricultural products as predicted by a subjective probability model. The food certifications used for this study are 'Organic food', 'Traceability system of food products,' and 'Hazard Analysis Critical Control Point (HACCP)'. Tofu (bean curd) was selected as being representative of agricultural food products, for the purposes of this study. In 2016, we surveyed 243 consumers regarding the strength of their belief regarding their prior beliefs relative to each certification, as well as the strength of their intention to purchase certified tofu based on their belief strengths for this study. The study resulted in the following findings: Firstly, consumers hold more than two different prior beliefs for each of the three certifications included in this study. Consumers' prior beliefs regarding these certifications have an impact on their consideration as to whether they plan to buy those certified agricultural products. Secondly, consumers try to persuade themselves to ensure that their particular belief about the product's certification could lead to a purchasing decision regarding that agricultural product.

• 가정과삶의질연구
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• 제32권5호
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• pp.207-219
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• 2014

The purpose of this study was to examine the characteristics of suicide attempts and non-attempts of the elderly living alone and the subjects in this study were 690 elderly persons living alone in Seoul and Gyeonggi Province. For data analysis, this study used descriptive analysis, mean comparison correlation analysis, and binominal logistic regression analysis using PASW 20.0. To explain the suicide attempts of elderly persons who live alone, variables such as sex, age education level, monthly household income, religion, subjective economic status, subjective health status, ADL/IADL, depression, hopelessness, social support, and stress were used. The findings of the study were as follows: First, 9.2 percent(64) of the elderly living alone had attempted suicide and 90.8 percent(626) had never attempted suicide. Second, monthly household income, hopelessness, and social support were identified as the factors that affected their suicide attempts. In other words, the elderly living alone who had lower monthly household income, less social support, and greater feelings of hoprlessness had made more suicide attempts. As it is a cross-sectional research using data from non-probability sampling, this has a limitation in generality sampling, this has a limitation in generalizing the study results. To overcome this limitation, longitudinal research using data from probability sampling is necessary.

• 한국지역사회생활과학회지
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• 제21권2호
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• pp.201-210
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• 2010

Over the past few decades, the proportion of elderly people in Korea has been rapidly increasing. In particular, rural areas are experiencing aging of communities more rapidly compared to urban areas. However, public policy for the elderly does not respond to the needs of rural elderly. To distribute health care resources equitably, it is necessary to gather reliable information on the health status of the elderly. The purpose of this study is to explore factors affecting Korean elderly people's ADL functional status. The data sources are from 2004 Elderly Living Condition Survey. The Analysis sample consists of 3,278 cases. Analysis results show that there is a significant residential variability in education, monthly stipend, living arrangement, subjective health status, regular food in-take, and regular exercise. Logistic regression analysis results also show that 'cognitive ability'(exp(B)=6.603), 'subjective health status'(exp(B)=4.576), 'age'(exp(B)=2.610), and 'living arrangement'(exp(B)=.589) are factors affecting ADLs. Namely, when a respondent's cognitive ability is limited, subjective health status is poor, or if their age is over 75, the probability of having a limited ADL has been 6.6 times, 4.6 times, and 2.6 times higher than otherwise. Among these variables, cognitive ability was the best explanation. In contrast, respondents who live with a spouse or adult children have a lower probability of having limited ADL compared with those who live alone. Considering that the most critical criteria in determining eligibility for social welfare services is ADLs, the development of appropriate ADL assessment tools is in an urgent need. Without the accurate assessment on ADLs, particularly on rural as well as the urban elderly, it seems to be hard to achieve effectiveness in the health care policy for the elderly.

• 노동경제논집
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• 제37권4호
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• pp.59-88
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• 2014

주5일 근무제도의 노동시장 외적 효과를 개인-일자리 고정효과 모형을 이용하여 추정한 결과 직장에서 주5일 근무제도의 실시는 근로자의 주관적 건강상태를 향상시키고 운동 횟수를 늘렸으며, 직업훈련 외의 교육이나 연수를 받을 확률을 늘리고 근로자의 주관적 삶의 질을 향상시킨 것으로 나타났다. 또한 문화 활동이나 여가에 사용하는 지출을 늘렸으며 근로자가 일과 직장에 대해 갖는 만족도도 높인 것으로 나타났다. 효과의 상당 부분은 단순한 근로시간의 단축보다는 휴일이 추가된 것에 기인한 것으로 추정되었다.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 1998년도 가을 학술발표회 논문집
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• pp.61-68
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• 1998

It has become important to evaluate the qualitive reliability and condition assessment of existing structural systems in order to establish a rational program for repair and maintenance. Since most of if existing structural system may suffer from defect corrosion and damage, it is necessary to account for their effects in fuzzy reliability analysis, In this paper, an attempt is made to develope a reliability analysis for damaged structural systems using failure possibility theory. Damage state is specified in terms of linguistic valiables using natural language information and numerical information, which are defined by fuzzy sets. Using a subjective condition index of failure possibility and information of the damage state is introduced into the calculation of failure probability. The subjective condition index of quantitative and qualitative analysis method is newly proposed based on the fuzzy set operations, namely logical product, drastic product, logical sum and drastic sum

• The Journal of Asian Finance, Economics and Business
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• 제5권3호
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• pp.81-93
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• 2018

This study developed and tested the impact of hallyu 4.0, social media, and consumer ethnocentrism on the decision to purchase Korean products of Generation C in Vietnam. Both qualitative and quantitative methodologies were utilized in this study. Qualitative research was first carried out with in-depth interview, conducted to derive measurement items for the interested constructs. Quantitative research used cross-sectional field design by pilot study and official study. The model was tested and developed using data collected by questionnaires, from a sample of 575 respondents, by both electronic and paper surveys with non-probability and convenience sampling techniques. SPSS 20 and AMOS 20 software were employed to analyze the data. The results of structural equation modeling showed that hallyu 4.0, social media, and consumer ethnocentrism influenced the intermediates variables: subject norms, trust, attitude and behavioral intention and influenced purchase decision. The hallyu 4.0, social media, and consumer ethnocentrism are independent variables. They impact purchase decision through mediating variables such as trust, subjective norms, attitude and behavioral intention. Social media influences not only to trust but also to subjective norms. Subjective norms influence on purchase decision. This study also discovers an interesting fact that trust and attitude variables have an impact on behavioral intention and purchase decision.

• 노동경제논집
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• 제43권4호
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• pp.35-86
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• 2020

본 논문은 결혼과 출산이 여성의 노동시장 성과와 생활만족도에 미치는 효과를 추정하고자 한다. 결혼 여부와 시점의 내생성 문제를 해결하기 위해 이중차분-사건사 방법을 사용하였고, 결과의 강건성을 확보하기 위해 4개의 비교집단을 사용하였다. 분석 결과, 결혼한 해에 고용확률이 약 12%p 떨어지며 결혼 6년 차에 이르면 미혼시절보다 약 46%p 낮은 고용률이 나타났다. 고용확률의 감소로 인해 근로소득 역시 결혼 이후 지속적으로 감소하는 것을 발견하였다. 반면에 주관적인 생활만족도는 중기적으로는 다소 감소하는 추세를 보이지만 남녀 모두 결혼 이후에 높아지는 것으로 나타났다. 가족 및 친인척 관계와 사회적 친분에 대한 만족도는 남녀 모두 결혼 이후 유의하게 높아졌다.

• The Journal of Asian Finance, Economics and Business
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• 제8권1호
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• pp.443-450
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• 2021

The paper investigates the factors that affect the decision of young Chinese consumers to buy high-end cosmetics. The study is based on the responses obtained by questionnaires from 400 respondents in Guangzhou, China. The information was collected and classified on the basis of gender, occupation, age and education in order to understand the main characteristics of the sample in a better way. The purposive, convenient and quota sampling techniques of non-probability sampling method were used. Besides this, the predictive test was carried out with 30 respondents to ensure the reliability and validity of the questionnaires. The data was put to descriptive statistical analysis and multiple regression analysis in order to verify the hypotheses. The data revealed that, while brand awareness does not affect the consumer attitude about the high-end cosmetics, other factors like product involvement, perceived quality, subjective norm, and word-of-mouth have significant effect on consumer's attitude and consumers' intention about high-end cosmetics. The findings of the study show that subjective norm, perceived value, word-of-mouth, and consumer attitude of cosmetic products highly affect consumers purchase intention of high-end cosmetic products. The research paper helps to form concrete and effective marketing strategy based on various aspects of consumer behavior for high-end cosmetics in China.