• Title/Summary/Keyword: multiple-group analysis

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Analysis of multiple spurious operation scenarios of Korean PHWRs using guidelines of nuclear power plants in U.S.

  • Kim, Jaehwan;Jin, Sukyeong;Kim, Seongchan;Bae, Yeonkyoung
    • Nuclear Engineering and Technology
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    • v.51 no.7
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    • pp.1765-1775
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    • 2019
  • Multiple spurious operations (MSOs) mean multiple fire induced circuit faults causing an undesired operation of one or more systems or components. The Nuclear Energy Institute (NEI) of the United States published NEI 00-01 as guidelines for solving MSOs. And this guideline includes MSO scenarios of pressurized water reactor (PWR) and boiling water reactor (BWR). Nuclear power plant operators in U.S. analyzed MSOs under MSO scenarios included in NEI 00-01 and operators of PWRs in Korea also analyzed MSOs under the scenarios of NEI 00-01. As there are no pressurized heavy water reactors (PHWRs) in the United States, MSO scenarios of PHWRs are not included in the NEI 00-01 and any feasible scenarios have not been developed. This paper developed MSO scenarios which can be applied to PHWRs by reviewing the 63 MSO scenarios included in NEI 00-01. This study found that seven scenarios out of the 63 MSO scenarios can be applied and three more scenarios need to be developed.

Influence of COVID-19-related Nursing Experience on Job Stress of Nurses (COVID-19 관련 업무 경험이 간호사의 직무 스트레스에 주는 영향)

  • Kim, Yeon Hee;Joo, Hyun Sil;Lee, Jeong Eon;Lee, Mi Sun
    • Korean Journal of Occupational Health Nursing
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    • v.31 no.4
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    • pp.147-156
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    • 2022
  • Purpose: This study aimed to compare and analyze the job stress of nurses with and without in COVID-19-related work. Methods: A structured self-reported questionnaire survey was conducted to assess job stress. The extent of job stress was compared between nurses with COVID-19 (COVID-19 group) and those without such experience (non-COVID-19 group). Multiple regression analysis was performed to identify the factors influencing job stress. Results: Job stress was higher in the COVID-19 group compared to the non-COVID-19 group (t=2.54, p=.12). In sub-categorical comparison, stress driven by a taxing work environment, relationship conflict, and work schedule was higher in the COVID-19 group than the non-COVID-19 group. Multiple regression analysis revealed the job stress was higher among nurses with COVID-19-related work experience than that of non-experienced nurses. The factors affecting job stress of nurses with COVID-19-related work experience included emergency room work, providing nursing assistant for COVID-patients, and caring for these patients. Conclusion: Since COVID-19-related work experience is a major factor that affects nurses' job stress, it is imperative to provide various support measures for nursing assistants such as providing a break from working in an environment with high risk of infection, adjusting work schedules, resolving conflicts between personnel, and securing support.

The Effects of Beauty Involvement on Self-Satisfaction by Conspicuous Consumption Tendency Groups (과시소비성향 집단별 뷰티관여가 자기만족도에 미치는 영향)

  • Park, Hyun-Ju;Park, Sook-Hyun
    • Fashion & Textile Research Journal
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    • v.16 no.1
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    • pp.137-144
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    • 2014
  • This study examined the effect of beauty involvement on self-satisfaction by conspicuous consumption tendency groups. A questionnaire method was used for this study. The subjects of this research were females in their 20s~50s. We distributed 580 questionnaires ets; constantly, 554 sets were used in the final analysis. Data were analyzed by factor analysis, ANOVA, cluster analysis, Cronbach's alpha coefficient and multiple regression analysis. Beauty consumption behavior factors were classified with hair styling, skin management, make-up and body shaping. Self-satisfaction factors were classified with living, appearance, economic and interpersonal relation. This study classified 4 conspicuous consumption groups (active, passive, syntonic and individuality & frugal group). The active conspicuous consumption group was unsatisfied with most of the self-satisfaction factors. The passive conspicuous consumption group was more interested in skin management factors than other factors. The syntonic conspicuous consumption group was interested in make-up, body shaping and skin management in order to provide a positive impression to other people. The individuality & frugal group was most interested in body shaping that could be achieved at low cost through exercise and diet.

Clothing Purchase Motives and Post-Purchase Dissatisfaction of Women (여성의 의복구매동기와 구매 후 불만족에 관한 연구)

  • 엄경은
    • Journal of the Korean Home Economics Association
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    • v.33 no.4
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    • pp.315-327
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    • 1995
  • The objective of this study were to classify the contents of clothing purchase motives and to examine the differences in post-purchase dissatisfaction and satisfaction of clothing according to the clothing purchase motives. Questionnaire was comprised of 36 Likert type items of clothing purchase motive measure, 15 items of post-purchase clothing dissatisfaction measure, and 1 item of satisfaction measures. Samples were 492 women in Incheon, Korean ; 279 were college students and 213 were housewives. The data were analyzed using factor analysis, cluster analysis, one-way ANOVA, Duncan's multiple range test, and χ2-test. The results of the study were the followings : 1. Subjects perceived 'becomingness' to be the most important motive, 'attractiveness of color' the second important, and 'salesperson's recommendation' the least. 2. 6 factors of clothing purchase motives were derived by factor analysis : F.1 'clothing utility and deficiency' ; F.2 'clothing quality' ; F.3 'financial frugality'. 3. Subjects were classified into the three motive groups by cluster analysis of the 6 factors : G.1 'the clothing appearance and others' influence' ; G.2 'the clothing quality and deficiency' ; G.3 'the motiveless'. 4. More college women were distributed in clothing appearance and others' influence group than housewives, while more housewives were distributed in clothing quality and deficiency group. 5. The clothing appearance and others' influence group expressed the highest post-purchase dissatisfaction and the lowest post-purchase satisfaction. The clothing quality and deficiency group expressed the highest post-purchase satisfaction, and the motiveless group expressed the lowest post-purchase dissatisfaction.

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A Study on Real somatotype and Body consciousness of Middle-aged women (중년기 여성의 실제체형과 신체의식에 관한연구)

  • 손희순
    • Journal of the Korean Society of Costume
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    • v.31
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    • pp.119-130
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    • 1997
  • The purpose of this study is to examine differences between real somatotypes and cog-nitive somatotypes by considering the degree of satisfaction of body parts. The subjects were 250 middle-aged women from 40-54. Data was collected through anthropometry and surveys. Data was analyzed by correlation analysis anova duncan multiple range test factor analysis regression analysis crosstabulation analysis. The results were as follows: 1. Middle-aged women tend to prefer having a slim truck long and slim limbs and their hope was to be tall in height and light in weight slim at the waist and abdomen. 2. The consciousness about thickness was in-tensified more than that about length of the body. 3. The slim somatotype group were more satisfied with their body than those of obese somatotype group. 4. The average R hrer Index of middle-aged women is 1.55 and the slim somatotype group is 1.33 and the standard somatotype group is 1.53 obese somatotype group is 1.82. Age has much influence on the body change of middle-aged women. Especially 45-49 years old the slim body type declined heavily. 5. When analyzing the elements of body sat-isfaction the biggest elements are in the sub-ject of girth related to the expansion of trunk. Therefore trunk girth has more influence on body satisfaction than height and limbs. So the obession of trunk girth is the most important factor in body satisfaction. 6. Most middle-aged women although not judged to be obese by measurements believed themselves to be obese.

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A Study on Store Image Preferences which is Followed by Clothing Buying Motives (II) - As Object of Ewha Womans Student - (의복 구매동기에 따른 점포이미지 선호도에 관한 연구(II) - 이대생을 중심으로 -)

  • Lim, Sook Ja;Lee, Joo Eun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.17 no.1
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    • pp.3-10
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    • 1993
  • This study intends to provide a beneficial foundation which can aid our understanding of how a clothing consumer group can be classified according to the clothing buying motives, and what differences are there about the importances store image attribute among them and how consumer's preferences to the store image are shown differently among them and ultimately, some concrete data which can be useful in establishing efficient store image strategies for clothing stores. 484 subjects were gathered through convenience sampling method and, for data analysis, cronbach' ${\alpha}$, frequency, percentage, mean, ${\chi}^2$-text, t-test, ANOVA, Duncan Multiple Range Test, Factor Analysis, Cluster Analysis were conducted. the results are as follows; 1. three kind of factors in the clothing buying motives were determined for analysis of consumers group and by which it was revealed as to be significant for us to classify them three subdivisions; those of fashion pursuit group, self display group, financial utilitarian group. 2. Importance on store image attribute was revealed that Ewha students regarded quality, price, more important factors than others. 3. Store image preferences show significantly when concerned with quality, price, fashion, impression and age of store personnel, convenience for exchanging and returning goods, credit, delivery and repair, mailing of catalogue and discount coupon, bightness of store among consumer groups.

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The Effects of Fashion Involvement on Self-Satisfaction by Conspicuous Consumption Tendency Groups (과시소비성향집단별 패션관여가 자기만족도에 미치는 영향)

  • Park, Hyun-Ju;Park, Sook-Hyun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.11
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    • pp.1162-1173
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    • 2012
  • This study classifies conspicuous consumption groups and the difference of fashion involvement and selfsatisfaction by each group. It also examined the effect of fashion involvement on self-satisfaction by each group. A questionnaire method was used for the study method and the subjects of the study were females in their 20s-50s. A total of 580 sets of questionnaires were distributed and 554 sets were used for the final analysis. Data were analyzed by factor analysis, t-test, ANOVA, factor analysis, cluster analysis, Cronbach's alpha coefficients, and multiple regression analysis. The results of this study were as follows: First, this study classified 4 groups of active conspicuous consumption, the group of passive conspicuous consumption, the group of syntonic conspicuous consumption and the group pursuing individuality & frugal consumption. Second, as a result of the examination of the impact of fashion involvement for each group with a propensity for conspicuous consumption on their self-satisfaction, it was found that the sex appeal of fashion involvement had no significant impact on the economic satisfaction in the group of active conspicuous consumption, and had no significant impact on all elements of self-satisfaction in the group of passive conspicuous consumption. It was also found that social symbolism had a negative impact on satisfaction with looks in the group of syntonic conspicuous consumption, and the physical complementation and directions of looks had a negative impact on satisfaction with living, the social symbolism on satisfaction with looks and the syntone on satisfaction with looks in the group of pursuing individuality & frugal consumption.

IMAGING THE UPPER CRUST OF THE KOREAN PENINSULA BY SURFACE WAVE TOMOGRAPHY (표면파 토모그래피를 이용한 한반도 상부지각의 이미지)

  • Cho, Kwang-Hyun;Herrmann, Robert B.;Lee, Kie-Hwa
    • 한국지구물리탐사학회:학술대회논문집
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    • 2006.06a
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    • pp.41-50
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    • 2006
  • The crustal structure of Korean Peninsula have been investigated by analyzing group velocity dispersion data of surface wave. Cross.correlation of seismic background motions (Campillo and Paul, 2003; Shapiro et al., 2005) has been applied to estimate the short.period Rayleigh. and Love.wave group velocity dispersion characteristics of the region. Standard processing procedures were applied to the cross.correlation, except that signal whitening was used in place of one.bit sampling equalize power in signals from different times. Multiple.filter analysis was used to extract the group velocities from the estimate Green's functions, which were then use to image the spatially varying dispersion at periods between 0.5 and 20 seconds. The tomographic inversion technique used inverted all periods simultaneously to provide a smooth dispersion curve as a function of period in addition to the usual smooth spatial image for a given period. The Gyeongsang Basin in the southeastern part of the peninsula is clearly resolved with lower group velocities.

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Classification and Analysis according to the Luxury - Frugality Consumption of Female Consumers (여성소비자의 사치 - 검약소비 유형분류 및 특성분석)

  • Hong, Eunsil
    • Korean Journal of Human Ecology
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    • v.22 no.1
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    • pp.99-116
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    • 2013
  • The purpose of this research is to explore the levels of luxury-frugality consumption of the female consumers and classify their types on luxury-frugality consumption behaviors. Total of 479 on-line questionnaires were surveyed nationwide for this research in February, 2012. Statistical analysis was achieved by using t-test, one-way ANOVA, Duncan's multiple range test, ${\chi}^2$, and Ward' hierarchical cluster analysis with a total of 479 questionnaires. The research results are summarized as follows: First, the overall luxury-frugality consumption average mark of female consumers was 2.44. Second, all surveyed female consumers were classified into four types based on the means scores of two dimension luxury-frugality consumption behaviors. A total 26.51% of female consumers belonged to Type 1 (named as luxury consumption group) where females scored high points on two dimension luxury consumption behaviors. Type 2 (named as excessive consumption group) occupied 32.78% and this group scored low on the luxurious consumption but high on the overconsumption. Type 3 (named as prefer prestige group) occupied 28.39% and this group scored low on the overconsumption but high on the luxurious consumption. Type 4 (named as frugal consumption group) had 12.32% of females whose scores of two dimension luxury-frugality consumption behaviors were low.

A Study on Pursuing Benefits and Satisfaction at Fashion Outlet Store (패션 아울렛 점포에 대한 추구혜택과 만족도 연구)

  • 박혜원;박주형;임숙자
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.7
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    • pp.950-961
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    • 2004
  • This study was attempted to examine consumers' pursuing benefits and satisfaction at outlet store, to analyze the differences of pursuing benefits and satisfaction at outlet store among the consumer groups segmented by the pursuing benefits, and to provide useful information for establishment of marketing strategies. The subjects were 500 female consumers experienced in purchasing clothes at outlet non. For analysis of questionnaires, $\chi$$^2$-test, ANOVA, cluster analysis, factor analysis, and Duncan's multiple range test were performed. The results were as follows: 1. Pursuing benefits at outlet store were composed of 6 factors: store's atmosphere, variety of products and brands, service and reputation of store, product quality, location's convenience, and price. Consumers were segmented into three groups by above 6 factors: product pursuing group, store convenience pursuing group, and price pursuing group. 2. Satisfaction at outlet store was composed of 5 factors: product, atmosphere, service and reputation of store, location convenience, and price. Satisfaction at outlet store such as service and reputation of store, location's convenience, and price were significantly different among the segmented groups. Product pursuing group was most satisfied with service and reputation of store, store convenience pursuing group was most satisfied with location's convenience and price, and price pursuing group was most satisfied with price. 3. The demographic variables such as an age, marriage, occupation, academic background, and total income were significantly different among the segmented groups.