• Title/Summary/Keyword: the revealed preference

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Quality and Preference Changes Red Sea Cucumber (Stichopus japonicus) Kimchi during Storage Period (홍해삼 첨가 김치의 저장기간 중 품질 특성 및 기호도 변화)

  • Park, Soo-Yeong;Lim, Hee-Kyoung;Park, Sang-Gyu;Cho, Moon-Jae
    • Journal of Applied Biological Chemistry
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    • v.55 no.2
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    • pp.135-140
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    • 2012
  • To diversify usage of aquacultural red sea cucumber, new Kimchi containing red sea cucumber was developed and its quality and consumer preference were studied. The pH and total acidity, index of Kimchi ripening, decreased till 7 days of storage, then pH change became blunt and finally reached optimum pH 4-4.5. The amount of reducing sugar gradually decreased during storage period. The number of lactic acid bacteria increased in early fermentation period in both Kimchi containing boiled and fresh red sea cucumber, however, more lactic acid bacteria found in fresh red sea cucumber containing Kimchi. Preference of Kimchi containing boiled or fresh red sea cucumber compared to control Kimchi containing fermented salted fish was evaluated. The results revealed there were no differences in color, flavor, texture, taste, after taste and overall preference.

Changes in Odor Characteristics of Doenjang with Different Preparing Methods and Ripening Periods (제조방법과 숙성기간에 따른 된장의 향기특성 변화)

  • Choi, Mi-Kyung;Sohn, Kyung-Hee;Jeon, Hyeong-Ju
    • Journal of the Korean Society of Food Culture
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    • v.12 no.3
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    • pp.265-274
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    • 1997
  • This study was conducted in ordor to find the most suitable conditions for producing the Doenjang with optimal odor compound contents. Three sample groups with the different preparing methods -Doenjang that has not gone through the soy sauce separation process (Doenjang A), Doenjang that has gone through the soy sauce separation process; Meju-20% salt water ratio of 1 : 4 (Doenjang B), and that with the ratio of 1.3 : 4 (Doenjang C)- were tested during different ripening periods. Odor compound contents were analyzed through Solvent Extraction Method and Simultaneous Steam Distillation Extraction (SDE). The number of odor compounds was greatest in Doenjang A and during the mid to late stage in each groups. In the sensory evaluation of Doenjang odors, Doenjang A received the highest scores in the categories of overall preferences, while Doenjang C got the lowest scores. Individual odor didn't vary significantly during ripening periods, but the overall odor and taste preference was highest in the samples ripened for 75 to 120 days. Stepwise multiple regression analysis of major odor compounds of Doenjang revealed that benzeneacetaldehyde is the major explanatory variable for offensive odor. Benzeneethanol, 3-methylthio-propanal and 4-methyl-phenol are the explanatory variables for salty odor, nutty odor and rancid odor, respectively. Odor compounds that contribute to the overall odor preference varied from the compounds that affect the taste preference.

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A Study on Pattern of Concert Dress Preference Design (연주복 선호 디자인에 따른 패턴 연구 - 피아노와 성악 중심으로 -)

  • Park, Sung-Yul;Hong, Jung-Min
    • Fashion & Textile Research Journal
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    • v.5 no.5
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    • pp.465-469
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    • 2003
  • The present study revealed; that (1) The students majoring in a piano course were the preference type of the performance dress - best line was designed of upper form chest. It was 1.5cm shorter than armhole line, the princess line was preferred Top one piece without sleeves which was designed with slim by bottom line through west dart form best line. The expression method was showing embroidery and bidding, colors were in order to white, ivory, black and blue style. The material was in order to silk with glorious shinning, silk satin and race style. (2) The students majoring in a vocal music were the preference type of the performance dress - the princess line was designed shorter, the west line of back and forth was preferred the one piece of bulk style divided with three partitions. Neck line was 5cm shorter than the middle of back, 9cm shorter than the side neck position, 9cm shorter than the middle of forth, sweet heart neck line with circular sleeve designed 7cm shorter than the side neck position. Colors were in order to ivory, red and yellow style. The material was in order to silk with glorious shinning silk satin and race style.

A study on the perception of the metaverse and luxury fashion brands

  • Hosun Lim
    • The Research Journal of the Costume Culture
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    • v.32 no.2
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    • pp.125-147
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    • 2024
  • This study aims to analyze consumer perceptions of the metaverse platform and luxury fashion brands in relation to consumer lifestyles, thereby providing foundational data for future marketing strategies of fashion brands using the metaverse. A survey on the lifestyle and perceptions of the metaverse, as well as on luxury fashion brands, was conducted among 300 men and women between their 20s and 40s. Statistical analyses included frequency analysis, cross-tabulation, chi-square (χ2) analysis, factor analysis, cluster analysis, one-way ANOVA, and Duncan's post-hoc test. Factor analysis of the participants' lifestyles revealed five distinct types: "Indifferent," "Social, individual, and leisure-oriented," "Trend-leading and brand-oriented," "Appearance and fashion-oriented," and "Self-improvement-focused and individualistic" types. The analysis of luxury fashion brand perceptions based on lifestyle types showed that the "Trend-leading and brand-oriented" type had higher awareness and preference for brands such as Gucci, Burberry, and Balenciaga, while the "Indifferent" type showed lower levels of awareness and preference. Regarding brand perception related to luxury fashion brand content experiences within the metaverse, Gucci, Burberry, and Balenciaga showed consistent results across all types. Specifically individuals classified under the "Trend-leading and brand-oriented" category exhibited higher awareness and preference for these brands within metaverse experiences, while those categorized as "Indifferent" displayed comparatively lower levels. Therefore, digital marketing strategies targeting consumers under the "Trend-leading and brand-oriented" category are expected to be highly effective for luxury fashion brands. This study is poised to contribute to the expansion of the marketing landscape within the metaverse virtual world for fashion.

Empirical Validation of Interior Image Preference Scale(IIPS) (실내이미지 선호 측정 시각적 도구에 대한 실증적 검증)

  • 이연숙;홍미혜
    • Korean Institute of Interior Design Journal
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    • no.16
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    • pp.3-9
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    • 1998
  • The purpose of this research is to empirically validate the IIPS (Interior Image Preference Scale) which is a newly developed visual instrument for evaluating the environmental disposition inherent to individuals especially one's interior image preferences. The questionnaire survey was used. The data were collected from Oct. 10th 1997 to Nov. 14th 1997. The subjects were 399 undergraduate students and 30 professor of Dep. of Interior Design. With respect to content validity and construct validity of IIPS discrimination and similarity structure of scales and characteristics of 12 prototype interior images were examined in comparison with the originals. 429 questionnaires were analyzed using frequency percentage mean and Multi-Dimensional Scales. The major results were as follows (1) All 80 items of IIPS were discriminated by 3 criteria such as Traditionalism·Modernity(TM) Masculinity·Femininty (MF) and Simplicity·Complexity (SC) as expected at the time of the instrument development stage.(2) 12 prototype interior images of the IIPS showed tendency to be accord with descriptors to express them in comparison with the originals (3) All 90 items of IIPS showed a cluster distribution according to the similarity structure of scales. Three subscales of IIPS(e . g. TM MF and SC) were structured pretty well by those 3 dimensions. This research revealed the IIPS to have content validity and construct validity for evaluating of preference of three properties of interior image in empirical research. The IIPS was found to be potential objective tool to measure the interior image preferences.

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A Study on Brand Preference and Fit Problems of High School Girls' Uniform Jackets (여자 고등학교 학생들의 교복재킷 브랜드 선호 및 맞음새 실태에 관한 연구)

  • Shin, Sae-Mi;Chun, Jong-Suk;Choi, Eun-Ah
    • The Research Journal of the Costume Culture
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    • v.20 no.3
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    • pp.319-329
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    • 2012
  • The market share of conglomerates is increasing in the Korean school uniform market these days. Functional fit problems occurred. Girls choose slim silhouette often experienced fit problems. The purpose of this study is to probe for functional design elements of high school girls' uniforms. A questionnaire survey was carried out. 202 high school girls took part in the survey. The questionnaire measured school uniform brand preference and size of school uniform jackets. The results of the survey show that over half of participants(56.6%) wore their jackets over nine hours per day. They considered the aesthetics of the design as the most important factor when purchasing school uniforms. That element affected their brand preference. In analyses of the fit suitability, there were no significant differences between brands. The jacket lengths were significantly different among brands, but all were evaluated as being short. About 60% of students had difficulty raising their arms while wearing their school uniform jackets. The results of this study revealed that high school girls' uniform jackets are too short and tight. Ergonomic design elements should be applied to high school girls' uniform jackets.

The Effect of Psychological Characteristics and Peer Acceptance on Korean Female Adolescents' Clothing Behavior (청소년기 여학생의 심리적 특성과 또래수용이 의복행동에 미치는 영향)

  • 김희창;이수경;고애란
    • Journal of the Korean Home Economics Association
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    • v.38 no.6
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    • pp.43-57
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    • 2000
  • The purposes of this study were 1) to identify the effects of psychological characteristics and peer acceptance on female adolescents'clothing behaviors(clothing attitudes and preference for up-to-date style), and 2) to determine the differences in psychological characteristics and clothing behaviors among subject groups classified by sociometric status. The questionnaires dealing with public/private self-consciousness, adolescent egocentrism, self-efficacy and clothing behaviors were adapted from precious studies. Peer acceptance was measured using Coie and Dodge(1983) method. The data were collected from 485 middle and high school girls living in Seoul, Korea. From the results of multiple regression of psychological characteristics and peer acceptance on clothing behaviors, clothing sexual attractiveness, clothing exhibition, and clothing importance were found to be influenced by public self-consciousness, adolescent egocentrism and peer acceptance. Fashion leadership and psychological dependence were influenced by egocentrism and self-efficacy. Preference for up-to-date style was influenced by egocentrism, public self-consciousness and self-efficacy. One-way ANOVA was used for analyzing the differences in research variables among subject groups classified by sociometric status. From the reset of middle school girls it was revealed that ignored group showed the highest score in clothing importance, whereas both popular group and rejected group showed the lowest score in social self-efficacy. In high school girls, controversial group showed the highest scores in adolescent egocentrism, fashion leadership, and preference for up-to-date style.

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A Study for Risk Factors of Mild and Moderate.Severe Hypertension (경증고혈압, 확정역고혈압의 위험요인에 관한 연구)

  • Kim, Eun-Ju
    • Research in Community and Public Health Nursing
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    • v.9 no.2
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    • pp.350-361
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    • 1998
  • In an attempt to examine the risk factors and analyze an odds ratio for risk factors associated with mild and moderate. severe hypertension, this study was carried out from August, 1987 to September, 1997. From periodic health examinations of insured adults, 747 subjects were assigned to nomotensives, mild hypertensives and moderate' severe hypertensives. Major findings obtained from the study are as follows: 1. The Body mass index(BMI) was revealed a significant difference among the 3 groups. Also, there was a significant positive correlation between the BMI and systolic, dyastolic blood pressure. 2. Cholesterol was revealed to be significantly different among the 3 groups. Also, there was a significant positive correlation between the cholesterol and systolic, dyastolic blood pressure. 3. Urine protein and a cardiovascular family history was revealed to be significantly different among the 3 groups. The presence of urine protein and cardiovascular family history were significantly higher in hypertensives than nomotensives. 4. A preference for salty food, a preference for flesh and the frequency of flesh eating were not significantly different among the 3 groups. 5. Smoking habits, frequency and duration of cigarette smoking were not significantly different among 3 groups. 6. The habit of alcohol consumption and the frequency and duration of alcohol consumption were not significantly different among the 3 groups. 7. The habit of exercise and its frequency and duration were not significantly different among the 3 groups. 8. Statistically significant elevated odds ratios were noted in the following BMI(mild hypertensives; 2.48, moderate. severe hypertensives ; 4.65), urine protein(mild hypertensives ; 2.37, moderate. severe hypertensives; 6.77), cholesterol(moderate. severe hypertensives ;1.64), cardiovascular family histoy(moderate severe hypertensives; 4.77). Based on these results, the significant risk factors of mild, moderate. severe hypertension were BMI, cholesterol, urine protein, and family history, but diet, smoking, alcohol consumption, and exercise had no significant association.

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Quality Characteristics and Antioxidant Properties of Omija-pyun (Schisandra chinensis Jelly) added with Stevia Leaf Powder (스테비아 잎 분말 첨가 오미자편의 품질 특성 및 항산화 특성)

  • Park, Suk-Hyun;Sim, Ki Hyeon
    • The Korean Journal of Food And Nutrition
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    • v.30 no.4
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    • pp.653-664
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    • 2017
  • This study added stevia leaf powder at ratios of 0.5, 1.0, 1.5, and 2.0 percent to Omija-pyun (Schisandra chinensis Jelly) as a natural low-calorie sweetener instead of sugar which is added to Omija-pyun in considerable amounts to evaluate quality characteristics and antioxidant activities compared to the control group with the addition of sugar. Moisture content of Omija-pyun expanded by increasing the measurement of stevia leaf powder (p<0.001), pH (p<0.01) and sugar content (p<0.001) decreased. L-values and b-values revealed a tendency to increase by adding more stevia leaf powder, but a-value revealed a tendency to decrease (p<0.001). Hardness (p<0.001) and chewiness (p<0.05) decreased by adding more stevia leaf powder. Based on the consumer preference evaluation, Omija-pyun with the addition of 0.5 percent stevia leaf powder was the most preferable in terms of color and flavor (p<0.001). The control group and Omija-pyun with the addition of 0.5 percent stevia leaf powder was the most preferable in terms of taste and texture (p<0.001). There were significant differences in the organoleptic properties except hardness between the samples by quantitative descriptive analysis. The control group revealed the highest preference in terms of redness and transparency, and redness and transparency tended to decrease by adding more stevia leaf powder (p<0.001). Organoleptic properties on bitterness and sourness were enhanced by adding more stevia leaf powder in the principal component analysis (PCA). Regarding antioxidant properties, total phenol compounds and flavonoid contents of Omija-pyun increased by adding more stevia leaf powder, and DPPH radical scavenging capacity also increased (p<0.001). Based on results, it is preferable to serve Omija-pyun with the addition of 1.0 percent stevia leaf powder instead of sugar within the context of quality and antioxidant activity.

Ergonomic Design of Warning Sounds Used in Cars (차량 내 경고음의 인간공학적 설계에 관한 연구)

  • Choi, Kwang-I;Lee, Han-Na;Choe, Jae-Ho;Jung, Eui-S.
    • Journal of Korean Institute of Industrial Engineers
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    • v.35 no.1
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    • pp.101-108
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    • 2009
  • This study aims to design ergonomic warning sound that is not confusing and enhancing preference. Four factors of the warning sound represented as interval, chord, reverberation and pitch were selected as independent variables. And, perceived urgency, perceived criticality, degree of confusion and user preference are measured as dependent variables. An experiment was conducted in silent lab environment. Warning sounds were given in 90dB constantly to subjects through stereo speakers. A statistical analysis revealed that interval was significant for perceived urgency; also interval and chord were both effective for perceived criticality. Pitch, interval, chord and the interaction between pitch and chord were effective in degree of confusion, so were reverberation, the interaction between reverberation and pitch and the interaction between reverberation and chord for preference. This study characterized the situation under which warning sounds are required into three types in terms of urgency and criticality; and found the right warning sound that the subjects perceived to best represent the situation through the validation study. These findings are expected to help the designer choose the right warning sound according to the situational contexts in which such warning sounds are implemented.