• Title/Summary/Keyword: Multiple factor analysis

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A Study on the Customer's Selection Attributes for Japanese Chain Restaurants in Seoul.Kyunggi Area (서울.경기지역 일식체인 레스토랑의 선택속성에 관한 연구)

  • Yun, Tae-Hwan;Lee, Soo-Bum;Yoon, Hye-Hyun
    • Journal of the Korean Society of Food Culture
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    • v.19 no.1
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    • pp.1-11
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    • 2004
  • The specific purposes of this study are that ; 1) to investigate the distinguished selection attributes on performance of Japanese chain restaurant according to general characteristics of the respondent ; 2) to find out relationships between selection attributes on performance for Japanese restaurant and customer's satisfaction Frequency analysis. one-way ANOVA, reliability analysis, factor analysis, multiple regression were used to analyze the data. Total 350 questionnaires were distributed and 312 were replied(89.14%). Selection attributes on performance for Japanese chain restaurant was divided into 7 factors. There are Factor1 'Store Image & Kindness', Factor2 'Sanitation & Taste', Factor3 'Approximation & Children's Menu', Factor4 'Delivery & Business Hours', Factor5 'Food Quantity & Korean Food', Factor6 'Service & Parking' Factor7 'Price & Publicity'. Monthly income, eating-out expense per once and type of companion have significant influences on selection attributes for performance. Customer's total satisfaction is significantly affected by selection attributes on performance. Factor7 'Price & Publicity' has the most significant influence on customer's satisfaction. We expect that the results can be used to provide basic information to plan marketing strategies, and take improved customer's satisfaction for Japanese chain restaurants.

Prediction of Ozone Concentration by Multiple Regression Analysis in Daegu area (다중회귀분석을 통한 대구지역 오존농도 예측)

  • 최성우;최상기;도상현
    • Journal of Environmental Science International
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    • v.11 no.7
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    • pp.687-696
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    • 2002
  • Air quality monitoring data and meteorology data which had collected from 1995. 1. to 1999. 2. in six areas of Daegu, Manchondong, Bokhyundong, Deamyungdong, Samdukdong, Leehyundong and Nowondong, were investigated to determine the distribution and characteristic of ozone. A equation of multiple regression was suggested after time series analysis of contribution factor and meteorology factor were investigated during the day which had high concentration of ozone. The results show the following; First, 63.6% of high ozone concentration days, more than 60 ppb of ozone concentration, were in May, June and September. The percentage of each area showed that; Manchondong 14.4%, Bokhyundong 15.4%, Deamyungdong 15.6%, Samdukdong 15.6%, Leehyundong 17.3% and Nowondong 21.6%. Second, correlation coefficients of ozone, $SO_2$, TSP, $NO_2$ and CO showed negative relationship; the results were respectively -0.229, -0.074, -0.387, -0.190(p<0.01), and humidity were -0.677. but temperature, amount of radiation and wind speed had positive relationship; the results were respectively 0.515, 0.509, 0.400(p<0.01). Third, $R^2$ of equation of multiple regression at each area showed that; Nowondong 45.4%, Lee hyundong 77.9%, Samdukdong 69.9%, Daemyungdong 78.8%, Manchondong 88.6%, Bokhyundong 77.6%. Including 1 hour prior ozone concentration, $R^2$ of each area was significantly increased; Nowondong 75.2%, Leehyundong 89.3%, Samdukdong 86.4%, Daemyungdong 88.6%, Manchondong 88.6%, Bokhyundong 88.0%. Using equation of multiple regression, There were some different $R^2$ between predicted value and observed value; Nowondong 48%, Leehyundong 77.5%, Samdukdong 58%, Daemyungdong 73.4%, Manchondong 77.7%, Bokhyundong 75.1%. $R^2$ of model including 1 hour prior ozone concentration was higher than equation of current day; Nowondong 82.5%, Leehyundong 88.3%, Samdukdong 80.7%, Daemyungdong 82.4%, Manchondong 87.6%, Bokhyundong 88.5%.

The Effects of VMD Components on the Attitudes Toward Fashion Brands and the Intention of Revisiting (VMD구성요소가 의류 브랜드 태도와 점포 재방문 의도에 미치는 영향)

  • Choi, Mi-Young
    • Journal of the Korean Society of Costume
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    • v.59 no.7
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    • pp.100-113
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    • 2009
  • The purpose of this study is to investigate how VMD structural elements affect fashion brand attitude and intention of store revisiting. For the research, we surveyed 200 females in their 20's and 30's, who are target consumers of SPA brands from April 10th to 15th in 2009. With SPSS 12.0 program, the data was analysed by frequency analysis, reliability analysis, factor analysis and multiple regression analysis. The results are as follows: First, regarding to the results of factor analysis, VMD structural elements were divided into the space layout and information factor, display and aesthetic factor, and store atmosphere factor. Second, intention of store revisiting was statically affected by fashion brand attitude and VMD structural elements, especially space layout and information factor. Third, we found differences in the path effects of VMD structural elements - brand attitude - store revisiting according to the familiarity of SPA stores. The results revealed that VMD structural elements are important marketing strategic tools affecting consumer's preference and store behavior on fashion brands.

The Effects of Factor Satisfaction and Experience Satisfaction in Foreign Medical Services on Revisit Intentions - Focused on Medical Institutions in Daegu Metropolitan City (의료서비스를 이용한 외국인환자의 요소만족 및 체감만족이 재방문의도에 미치는 영향)

  • Lee, Chang Won;Kim, Dae Geun
    • Korea Journal of Hospital Management
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    • v.23 no.2
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    • pp.95-105
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    • 2018
  • Objective: This study conducted an empirical research on foreign patients who had visited the medical institutions of Daegu region in order to identify the effects of the factor satisfaction and experience satisfaction with medical services on their revisit intentions. Methods: This study reviewed the existing studies on medical services to foreign patients with a main focus on medical tourism, and conducted the empirical research through a survey on foreign patients from the Russian, Chinese and English-speaking regions based on the Daegu Medical Tourism Promotion Institute's DB of foreign patients. The empirical research conducted a multiple regression analysis on factor satisfaction and experience satisfaction regarding return visit intentions. Results: The multiple regression analysis results showed that both the factor satisfaction and the experience satisfaction with medical services of foreign patients had positive effects on their return visit intentions, especially, with a relatively greater effect from the factor satisfaction. Specifically, it was found that factor satisfaction elements of 'friendliness of employees', 'good communication', and 'expertise of medical workers'; and experience satisfaction elements of 'reliability of medical information', 'efforts to minimize incompatibility towards foreigners', 'convenient access to medical information' and the like enhanced the return visit intentions. Conclusion: We discovered that, in the context of medical tourism activities, it is important to enhance factor satisfaction and experience satisfaction with medical services in order to promote return visits of the foreign patients who we once attracted. Especially, there are implications that reliability of medical information and efforts to minimize incompatibility towards foreigners enhance return visits of foreign patients.

A Development of Soundness Evaluation Index for Poor Appearance Distribution Concrete Poles (외관불량 배전용 콘크리트전주 건전도 평가지표 개발)

  • Wong, Yoon-Chan
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.9
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    • pp.35-44
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    • 2014
  • This study was to secure the safety of poor appearance distribution concrete poles effectively and to reduce the replacement costs of them by developing a soundness evaluation index. The researcher of this study investigated poor appearance types of concrete pole, collected 53 of test samples, and tested pole strength. As a result of strength test, only 17 percent of poor appearance concrete poles were below 2.0 of safety factor spec. As results of multiple regression analysis, it is verified that surface air void, horizontal crack, net-shaped crack, elapsed year, vertical crack, and deterioration in concrete compressive strength have statistically negative effects on safety factor of concrete poles in a significant level. The researcher set up a soundness evaluation index by using multiple regression equation, and suggested that poor appearance concrete poles should be replaced or reinforced only in case of soundness evaluation score of 150 or above.

Derivation of Distributed Generation Impact Factor in a Networked System in Case of Simultaneous Outputs of Multiple Generation Sites

  • Lim, Jung-Uk;Runolfsson, Thordur
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.20 no.9
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    • pp.78-83
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    • 2006
  • A new measure, the distributed generation impact factor (DGIF), is used for evaluating the impact of newly introduced distributed generators on a networked distribution or a transmission system. Distribution systems are normally operated in a radial structure. But the introduction of distributed generation needs load flow calculation to analyze the networked system. In the developed framework, the potential share of every generation bus in each line flow of a networked system can be directly evaluated. The developed index does not require the solution of power flow equations to evaluate the effect of the distributed generation. The main advantage of the developed method lies in its capability of considering simultaneous outputs of multiple generation sites.

Reducing the Harmonics of Static Var Compensator Using Multi-Step Inverter (멀티-스텝 인버터를 이용한 무효전력 보상장치의 고조파 저감)

  • Park, Hyun-Chul;Kim, Yeong-Min;Hwang, Jong-Sun;Kim, Jong-Man
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.09a
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    • pp.19-22
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    • 2001
  • For stabilization and improving power factor in the power lines, various Static Var Compensators(SVC) have been considered to be installed and partly applicated already. With all these merits of the SVC, it stil has demerits, principally evoking harmonic problems. So far, many harmonic reduction type inverters have been used in various parts. In this paper, the reactive power is controlled by amplitude of the output voltage. This paper propose that the multiple voltage source inverter have controllable power factor made by load vary at receive-stage as lagging and leakage control. The theoretical analysis on this system was confirmed through the computer simulation and the experiments.

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Study of MMPI on Obese Patients (비만환자의 MMPI에 대한 고찰)

  • Yang Jae-Sun;Kwon Young-Dal;Lee Sang-Gyu
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.5
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    • pp.1411-1418
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    • 2005
  • Obesity is not classed in general psychiatry disease. But, psychoneurotic factor has been known to be a risk factor of obesity. In order to evaluate and understand the psychoneurotic state on obese patient, this study used Minnesota Multiphasic Personality Inventory(MMPI). Total patients were classified into 3 or 5 clusters. MMPI scores were compared according to education, BMI and Sasang Constitution. Multiple regression analysis were used for psychological factor on obese patients by age, height, weight, education, percent body fat, fat distribution, BMI. Based on this study, it was no significantly difference by education level, BMI, sasang(四象) constitution except L profile according to BMI. These result is different from our general recognition of the psychoneurotic state on obese patient. Therefore, the bigger sample study is needed.

The Influences of Risk Perceptions and Clothing Involvements on Information Search Behavior (지각된 위험과 의복관여도가 정보탐색 활동에 미치는 영향 -대학생을 중심으로-)

  • 임경복
    • Journal of the Korean Society of Clothing and Textiles
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    • v.25 no.2
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    • pp.206-216
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    • 2001
  • This study was intended to identify the information search behavior according to the risk perception and clothing involvement. The data were collected via a questionnaire from 369 students of Semyung University in Checheon and data were analyzed by frequency, factor analysis, Cronbachs alpha and multiple regression. The results of this study were as follows; 1. Multiple regression revealed the fact that each type of involvement dimensions were influenced by the risk perception dimensions. Among four involvement dimensions, importance of clothing was the best influenced factor according to the risk perceptions. 2. Also information search behavior was influenced by risk perception and fashion involvement. Among four information search behaviors, industry providing search was the best influenced factor by the risk perception and clothing involvement.

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Performance Analysis of NOMA with Symmetric Superposition Coding

  • Chung, Kyuhyuk
    • Journal of IKEEE
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    • v.23 no.1
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    • pp.314-317
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    • 2019
  • Recently, the symmetric superposition coding (SSC) [3] is proposed for a solution for the error propagation (EP) due to the non-perfect successive interference cancelation (SIC) in non-orthogonal multiple access (NOMA). We analyze the performance of NOMA with the SSC. It is shown that the performance of the SSC NOMA is the same as that of NOMA with the normal superposition coding (NSC) for the power allocation factor less than 20%, the SSC NOMA performance is better than the NSC NOMA performance up to the power allocation factor 80%, and the SSC NOMA performs worse than the NSC NOMA for the power allocation factor greater than 80%. As a result, the SSC should be used with consideration of the power allocation.