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홈트레이닝(home training) 용품에 대한 관여도, 구매의사결정, 구매행동의 관계
정동화 ( Chung¸ Dong-hwa ),고대선 ( Ko¸ Dae-sun ) 한국체육학회 2021 한국체육학회지 Vol.60 No.1
본 연구는 홈트족의 홈트용품에 대한 관여도, 구매의사결정과 구매행동의 관계를 규명하는 것이다. 연구대상은 홈트 경험이 있는 성인들을 모집단으로 총 400부의 설문지를 배분하여 미응답과 불성실한 자료를 제외한 325부를 실제 분석 자료로 사용하였다. 본 연구의 목적을 해결하기 위한 통계방법은 SPSS와 AMOS 프로그램을 이용하여 빈도분석, 탐색적 요인분석, 확인적 요인분석, 신뢰도, 상관관계, 구조모형분석을 실시하였다. 이를 바탕으로 제시된 결과는 다음과 같다. 첫째, 홈트족의 홈트용품 관여도 중 상황관여도는 구매의사결정에 영향을 미치는 것으로 나타났다. 둘째, 구매의사결정은 구매행동에 영향을 미치는 것으로 나타났다. 셋째, 관여도는 구매행동에 영향을 미치지 않는 것으로 나타났다. 넷째, 관여도와 구매행동에 있어 구매의사결정은 매개를 하는 것으로 나타났다. 이와 같은 결과를 바탕으로 홈트족의 홈트용품에 대한 관여는 홈트 열풍에 맞추어 발생된 상황관여라 판단할 수 있다. The purpose of this study was to investigate how related among the involvement, purchase decision making, purchase behavior of home training equipment. To achieve this purpose, this study performed a statistical method with a questionnaire. The data collected from 325 people who experienced on home training. For analysis, frequency analysis, exploratory factor analysis, confirmatory factor analysis, Cronbach’s α, correlation and structural equation modeling were used by the computer using the statistics program SPSS and AMOS. The results of this study can be acquired as follows; First, situational involvement had influence on purchase decision making. Second, purchase decision making had influence on purchasing behavior. Third, involvement had not influence on purchasing behavior. Forth, purchase decision making was mediated on situational involvement and purchasing behavior. The results obtained here may the involvement of the Home training equipment is judged to be a situational involvement that occurred in accordance with the Home training wave.
A Statistical Model-Based Cell-to-Cell Variability Management of Li-ion Battery Pack
Donghwa Shin,Poncino, Massimo,Macii, Enrico,Naehyuck Chang IEEE 2015 IEEE transactions on computer-aided design of inte Vol.34 No.2
<P>The cell-to-cell variability of batteries is a well-known problem particularly when it comes to the assembly of large battery packs. Different battery cells exhibit substantial variability due to manufacturing tolerances, which should be assessed and managed carefully. Such variability has been approached mostly from the point of view of the chemical and physical phenomena, but these solutions are normally too complicated for the system-level design of electric applications. This paper proposes a combined cell-to-cell variability model of the capacity and internal resistance of a Li-ion battery that accounts for the variability effects in the cell manufacturing process. The proposed model allows to verify some known properties, such as the correlation between the capacity and internal resistance, to be verified qualitatively and the amount of variability and its impact on the design of battery packs to be assessed quantitatively. Using this model, the issue of how to consider the variability when constructing battery packs was also addressed. Modern battery packs normally incorporate some cell balancing circuitry, which is meant to balance cell voltages during charging at the expense of a bypassed (unstored) charge. For discharge, the cell-to-cell variability hides a part of the usable capacity of the battery pack. This paper proposes the use of variability information to assemble battery packs with minimal intracolumn variance of capacity. A weight-based variance minimization method, based on the correlation between cell capacity and weight is proposed to avoid resorting to direct battery capacity measurements, which is time-consuming and requires costly measurement equipment. The simulation result shows that the proposed weight-based approach allows an acceptable management of the cell-to-cell variability without the discharging experiment.</P>
Going Beyond the Olle Trails: A Digital Approach to Promote Oreum Hiking on Jeju Island
Donghwa Yoon,Walimuni Arachchilage Chathuri,Bye Paul Curtis,Priyana Panta,Ahmmed Md Jitu,Mincheol Kim,Jinhyun Ahn 대한산업공학회 2023 대한산업공학회 춘계학술대회논문집 Vol.2023 No.5
Implication • Oreum Tourism Platform as an innovative solution • Facilitate trip planning and exploration • Foster community and environmental stewardship • Contribute to the sustainable development of Jejus tourism industry