• Title/Summary/Keyword: Multi-factor Test

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Surface Roughness Prediction of Interrupted Cutting in SM45C Using Coated Tool (초경피복공구를 이용한 기계구조용 탄소강의 단속절삭시 표면거칠기 예측)

  • Bae, Myung-Il;Rhie, Yi-Seon
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.13 no.3
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    • pp.77-82
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    • 2014
  • In this study, we carried out the interrupted cutting of carbon steel for a machine structure (SM45C) with a CVD-coated tool and conducted an ANOVA test and a confidence interval analysis to find factors influence the surface roughness and to obtain a regression equation. We found that factor which mostly affects the surface roughness during interrupted cutting was the feed rate. The cutting speed and depth of the cut only had small effect on the surface roughness. From the result of a multi-regression analysis during an interrupted cutting experiment, we obtained regression equation. Its coefficient of determination was 0.918, indicating that the regression equation was predictable. Compared to continuous cutting, if the feed rate increases, the surface roughness will also increase during interrupted cutting.

A Study on Perception and Practice of Protecting the Patient Medical Information in Some General Hospital Employees (일 지역 종합병원 종사자들의 환자 의료정보 보호에 관한 인식도와 실천도)

  • Jung, Eun-Young;Jung, Sang-Jin
    • The Korean Journal of Health Service Management
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    • v.8 no.4
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    • pp.35-45
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    • 2014
  • This study aimed to identify the relationship between the awareness of employees in medical institutes on the protection of medical information and their practice, and basic data of the development of a protection policy is presented. The subjects of the study were 433 employees of general hospitals located in G city and they were interviewed to ascertain their awareness of the protection of medical information and their practice level. The collected data was analysed with a t-test, a dispersion analysis, a Pearson analysis, and a multi-regression analysis. The mean scores on the awareness of protection of medical information was $4.0{\pm}0.7$, and that for the proficiency level was $3.7{\pm}0.7$. As a relevant factor for awareness and proficiency, education in medical information protection was significantly related to awareness. Education experience in medical information protection and the daily mean number of patients in hospitals had a significant relationship with scores on awareness.

Analysis of Internet Shopping-Mall Images Through Benefit Segmentation and Perceptual Mapping (혜택세분화와 인식도에 의한 인터넷쇼핑몰 이미지 연구)

  • 윤서용;진병호;이선경;고애란
    • Journal of the Korean Home Economics Association
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    • v.39 no.10
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    • pp.55-67
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    • 2001
  • The purpose of this study were 1) to find out the benefits sought factors and segment the customers of internet shopping mall, 2) to find out the store image factors of internet shopping mall, and 3) to analyze the internet shopping mall market using perceptual map of segmented groups. The questionnaires dealing with attribute dimension of internet shopping mall image, benefits sought, and demographic variables were selected from the previous studies or were developed for this study. The data from 319 respondents which were collected through the internet survey site was analyzed by factor analysis, cluster analysis, one-way ANOVA, and $X^2$-test. The results of this study were as follows: 1. Benefit sought by consumer in internet shopping malls was found to include six different factors: assortments of products, search efficiency, brand/fashionability, delivery convenience, promotion service and informativeness. 2. As a result of subdividing the consumers, four distinctive groups were formed on the basis of benefit factors: multi-benefit oriented group, convenience oriented group, brand oriented group and low-benefit oriented group. Demographic traits such as education and income level were proven to significantly differentiate the benefit segments. 3. In the structural components of internet shopping-malls image, product/information, service/convenience and economy were drawn from attribute dimensions. 4. 12 perceptual maps of internet shopping mall image were constructed and each ideal vector were drawn.

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The Impact of Online and Offline Wine Purchase Channels on Consumer Perceptions of Wine Attributes and Repurchase Intention

  • Kang, Sora;Bonn, Mark A.;Cho, Meehee
    • Journal of Distribution Science
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    • v.13 no.10
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    • pp.57-63
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    • 2015
  • Purpose - This study investigates the effects consumer perceptions of wine attributes have on repurchase intention. It examineshow wine purchase channels (online or offline) influence perceptions about wine attributes and repurchase intention. Research design, data, and methodology - A total of 390 responses from Florida residents over 21 were collected using online surveys. Responses were analyzed using exploratory factor analysis to identify the underlying wine attribute factors. Multiple regression and multi-group analysis were employed to test the hypotheses. Results - Results revealed that consumer perceptions of wine attributes (sensory, origin, reputation, and price point) significantly influence their repurchase intention. Additionally, the effects of wine attributes on repurchase intentions were found to be significantly different based on the channel used. Findings indicated that wine attributes pertaining to reputation and price point strongly influenced repurchase behavior of online consumers, while offline wine consumers were influenced more by sensory and origin attributes. Conclusions - Study findings provide useful information for wine industry sales channels for developing new marketing strategies to effectively attract wine consumers to repurchase wine.

A Study on How Chemyon Influence Consuming Behaviors for the Luxury Brands (체면이 명품소비행동에 미치는 영향에 관한 연구)

  • Suh, Yong-Han;Oh, Hee-Sun;Jeon, Min-Ji
    • Fashion & Textile Research Journal
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    • v.13 no.1
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    • pp.25-31
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    • 2011
  • The purpose of this study was to investigate the influence of luxury brand value on luxury brand preferences according to chemyon(social-face). For data collection, research questionnaires were responded by 222 females over 20 years old consumers living in Pusan and Ulsan. The collected data were analyzed using SPSS 14.0 for windows Package by frequency analysis, the factor analysis using Varimax, reliability analysis, multi-regression analysis, and chow-test. The results of this study were as follows: First, concerning the worth of luxury brands that qualify value, conspicuous value, unique value, and emotional value significantly affected the consumers' luxury brand preferences. On the other hand, only social value of the luxury brand did not have a significant effect on the consumers luxury brand preferences. Second, the study was to investigate whether the luxury brand value has an effect on the brand preferences according the consumer's chemyon or not. The results showed different effects of perceived values on luxury brand preferences between the low chemyon group and the high chemyon group. The high chemyon group had an effect on conspicuous value, social value, and emotional value, while the low chemyon group had an effect on quality value for luxury brand preference.

How to Measure Customer Based Brand Equity of Casual wear (캐주얼 브랜드 자산의 측정에 관한 연구)

  • 김혜정;임숙자
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.11
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    • pp.1660-1671
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    • 2002
  • The purpose of this study is to develop and test the casual brand equity measurement, utilizing Heller 5(2001) ‘CBBE(Customer Based Brand Equity) Model' as a theoretical framework. The research was conducted in three steps from May to November in 2001. In the exploratory step, focus-group interview was conducted 5 times for gathering responses related to fashion equity. In Pilot study, 945 university students were surveyed and the data were analyzed to identify the components of fashion brand equity and to develop questionnaires. In the main research, 696 university students evaluated three brands in order to compare their equity that were formed in customers' perception. Statistical analyses were performed with SAS and LISREL 8.12 program using factor analysis and covariance structural equation model. The results were as follows: First, casual brand equity was defined in terms of six components; customer-brand resonance, customer feeling, customer judgment, brand imagery, brand performance and brand awareness. Second, casual brand equity was multi-dimensional brand attitude, which could be measured by 23 items that were different from previous measurement such as Aaker's ‘Brand Equity Ten' and K-BPI.

A Study on the Indoor Air Pollutants Emission Characteristics by Composed Building Materials (건축자재 마감구성에 따른 실내공기오염물질 방출특성에 관한 연구)

  • Park, Jin-Chul;Rhee, Eon-Ku;Yu, Hyung-Ku
    • Proceedings of the SAREK Conference
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    • 2005.11a
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    • pp.3-8
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    • 2005
  • Building parts of Multi-Family Houses are consisted of several building material assembly. Therefore, after selecting building materials with test result of emission intensity and their feature, composed building materials are made equally with actual construction methods, and experimented emission intensity. 7 days after experiment, formaldehyde emission intensity appeared low in an order of Tile Wall, Wood Flooring, Wallpaper, Reum Flooring, Silk Wallpaper, and 20 days after experiment, TVOC emission intensity appeared low in an order of Tile Wall, Reum Flooring, Silk Wallpaper, Wood Flooring, Wallpaper. There was a clear difference in TVOC emission intensity according to kind of building materials. Composed building materials that weight per unit area is big and omission intensity is high, they effect continuously to indoor air because decrement is small.

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Application of tuned liquid dampers in controlling the torsional vibration of high rise buildings

  • Ross, Andrew S.;El Damatty, Ashraf A.;El Ansary, Ayman M.
    • Wind and Structures
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    • v.21 no.5
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    • pp.537-564
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    • 2015
  • Excessive motions in buildings cause occupants to become uncomfortable and nervous. This is particularly detrimental to the tenants and ultimately the owner of the building, with respect to financial considerations. Serviceability issues, such as excessive accelerations and inter-story drifts, are more prevalent today due to advancements in the structural systems, strength of materials, and design practices. These factors allow buildings to be taller, lighter, and more flexible, thereby exacerbating the impact of dynamic responses. There is a growing need for innovative and effective techniques to reduce the serviceability responses of these tall buildings. The current study considers a case study of a real building to show the effectiveness and robustness of the TLD in reducing the coupled lateral-torsional motion of this high-rise building under wind loading. Three unique multi-modal TLD systems are designed specifically to mitigate the torsional response of the building. A procedure is developed to analyze a structure-TLD system using High Frequency Force Balance (HFFB) test data from the Boundary Layer Wind Tunnel Laboratory (BLWTL) at the University of Western Ontario. The effectiveness of the unique TLD systems is investigated. In addition, a parametric study is conducted to determine the robustness of the systems in reducing the serviceability responses. Three practical parameters are varied to investigate the robustness of the TLD system: the height of water inside the tanks, the amplitude modification factor, and the structural modal frequencies.

The Components of Consumer-Based Fashion Brand Equity (고객평가에 기초한 패션브랜드 자산의 구성요소에 관한 연구)

  • 김혜정;임숙자
    • The Research Journal of the Costume Culture
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    • v.10 no.6
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    • pp.680-696
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    • 2002
  • The aim of this study was to identify the components of customer-based fashion brand equity which was built from customers´perception to equity. As a method, both literature review and empirical research were made. This study performed in three stages from May to November in 2001. In the exploratory step. focus-group interview was conducted 5 times for gathering responses related to fashion brand equity, and free association test of 17 respondents was additionally conducted. In pilot study, 40 university students were surveyed and the data were analyzed in order to identify the components of fashion brand equity and to develop questionnaire. In the main research, 905 university students evaluated fashion brand equity in order to analyze the components of fashion brand equity in customers´perception. Statistical analyses were performed with SAS program using factor analysis, cronbach´α, frequency, and mean. The results of this study was as fellows. First, fashion brand equity was defined in terms of four components; customer-brand resonance, brand imagery/customer feeling, brand performance/customer judgment and brand awareness. Second, fashion brand equity was multi-dimensional brand attitude, which could be measured by 29 variables that were different from uni-dimensional evaluation of previous studies.

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Effects of Juglans regia Complex Extract on Osteoclast Differentiation from Bone Marrow Derived Macrophage (호두복합추출물이 골수유래대식세포의 파골세포 분화에 미치는 효과)

  • Kong, Hae Jin;Kang, Jae Hui;Ryu, Hwa Yeon;Lee, Hyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.33 no.3
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    • pp.169-174
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    • 2019
  • The purpose of this study was to evaluate the inhibitory effects of Juglans regia complex extract(JCE) consisted of Juglans regia, Eucommia ulmoides, Eleutherococcus senticosus and Zingiber officinale on osteoclast differentiation. Cell toxicity test by using CCK-8, TRAP activity and TRAP positive multi-nucleated cell counting were performed to evaluate inhibitory effect on differentiation of osteoclast from bone marrow derived macrophages(BMMs) induced by receptor activator of nuclear $factor-{\kappa}B$ ligand(RANKL). As a result, JCE inhibited RANKL-induced osteoclast differentiation in BMMs dose-dependently without cytotoxicity. These results suggest that JCE may have a potential role for treating bone lytic diseases such as osteoporosis.