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Consumer behaviors towards ready-to-eat foods based on food-related lifestyles in Korea
Hyun-Joo Bae,Mi-Jin Chae,Kisang Ryu 한국영양학회 2010 Nutrition Research and Practice Vol.4 No.4
The purpose of this study was to examine consumers’ behaviors toward ready-to-eat foods and to develop ready-to-eat food market segmentation in Korea. The food-related lifestyle and purchase behaviors of ready-to-eat foods were evaluated using 410 ready-to-eat food consumers in the Republic of Korea. Four factors were extracted by exploratory factor analysis (health-orientation, taste-orientation, convenience-orientation, and tradition-orientation) to explain the ready-to eat food consumers’ food-related lifestyles. The results of cluster analysis indicated that “tradition seekers” and “convenience seekers” should be regarded as the target segments. Chi-square tests and t-tests of the subdivided groups showed there were significant differences across marital status, education level, family type, eating-out expenditure, place of purchase, and reason for purchase. In conclusion, the tradition seekers consumed more ready-to-eat foods from discount marts or specialty stores and ate them between meals more often than the convenience seekers. In contrast, the convenience seekers purchased more ready-to-eat foods at convenience stores and ate them as meals more often than the tradition seekers. These findings suggest that ready-to-eat food market segmentation based on food-related lifestyles can be applied to develop proper marketing strategies.
A Study on Sound Transmission Loss Measurement of Vehicle Components
Riguang Nan,Yongjai Park,Yeonjune Kang,Chulmin Park,Kisang Chae 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The measurement method of Sound Transmission Loss (STL) both in the reverberation room and the semi-anechoic room at the vehicle component level is presented. The sound intensity method was used to measure the STL, and the Statistical Energy Analysis (SEA) models were used to predict the acoustic performance of the system. Since the dash and the floor system mainly affect the NVH performance in the car compartment, the analysis process requires detailed SEA modeling and accurate measurement in these parts. The measured data was in good agreement with the predicted data obtained by using SEA model, and the results were helpful in determining the reliability of the measurement method and the SEA modeling.
대쉬부 두께가변 차음구조 개발과 실내투과 소음에 관한 연구
이진형(Jinhyung LEE),우창완(Changoan Woo),이호달(Hodal LEE),성창모(Changmmo Seong),채기상(Kisang Chae),안옥균(Okkyun An),이정욱(Jungwook LEE),박장석(Jangseok Park),신상조(Sangjo Shin) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5
Applying a variable thickness insulation material dash isolation Pad. Pu spray applied insulation thickness variable structure is a study about the dash isolation pad. While reducing the total area thick insulation material was applied to the area to reinforce the part thickness. Reinforced sound insulation performance weakened only a dash portion and to reduce the insensitive part by weight.
박용재(Yongjai Park),남일광(Riguang Nam),강연준(Yeonjune Kang),박철민(Chulmin Park),채기상(Kisang Chae) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Statistical Energy Analysis has been widely applied to improve the accuracy of the prediction of vehicle interior noise. Especially, in airborne noise cases, SEA is very useful for predicting the Interior noise ofa vehicle if some parts of the vehicle model are changed. In this paper, a building and validating process of the full vehicle SEA model is presented. First, Sound Transmission Loss and Absorption Coefficient (α) of vehicle components were measured using a real vehicle. An airborne SEA model was built using the geometry information, and the component characteristics were modeled using STLs, and α's, which were measured or calculated. Then, the interior and exterior noises of a full vehicle were measured for various experimental conditions such as WOT (wide open throttle) condition and loudspeaker loading conditions, which were used for the validation of the SEA model. Finally, the predicted and the measured interior noises were compared, and the accuracies of the SEA model were identified for several loading conditions.