• 한국의류학회지
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• 제45권5호
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• pp.907-921
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• 2021

This study aims to predict causal relationships between experience economy, perceived flow, and continuous use intention in the mixed reality (MR) environment. A virtual fitting mirror with two modes (i.e., avatar and self-image) was selected for this study. A total of 200 samples was obtained in two sample frames: virtual fitting users in avatar mode (group 1, n = 119) and self-image mode (group 2, n = 81). The results showed that the experience economy consists of entertainment, education, esthetic, and escapism. The entertainment and esthetic experiences had positive effects on perceived flow, leading to continuous use intentions. For avatar mode, the entertainment and esthetic experiences had positive effects on continuous use intentions through the mediating effect of flow; and the education experience had a positive effect on the continuous intentions to use the MR technology. For self-image mode, the flow mediated the effect of entertainment on continuous use intentions, whereas education and escapism directly affected the intention to use the MR technology. The paper also discusses the theoretical and managerial implications of using MR technologies in fashion retailing.

• 무역학회지
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• 제47권4호
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• pp.35-52
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• 2022

Air transport is at the core of global economic growth. There is a close relationship between the flow of regional elements and the growth of the regional economy. It is easy to misestimate the impact of airports on the regional economy without considering spatial spillover effects. This study attempted to establish an asymmetric economic geographical weight matrix by applying the Spatial Durbin Model with cargo volume and passenger numbers as indicators. The influence of spillover effects on the regional economy, including direct spillover effects and indirect spillover effects are studied. The results revealed that passenger numbers and cargo volume have significant positive spillover effects on the regional economy. The driving effect of the airport on the regional economy was considered from a wider space scope. This study contributes to the scientific evaluation of the aviation economy.

• 산업경영시스템학회지
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• 제31권4호
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• pp.177-187
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• 2008

It is very important to select optimal investment alternative. The common method of economic evaluation is to compare of NPV, FW, AE by MARR, or the rate of return for the cash flow of alternatives. This method is undergoing by assumption that cash flow can be always evaluated by MARR, but the cash flow is not always increased or discounted like MARR. So this paper suggests a model on an economic analysis and evaluation regarding to various cash pattern, that is helpful for the person in the field to use easily.

• 한국자동차공학회논문집
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• 제12권1호
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• pp.153-161
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• 2004

A vehicle fuel economy is one of the most important issues in view of environmental regulation and customer's needs. In order to improve the vehicle fuel economy, great efforts has been carried out on the components bases. However, systematic analysis of vehicle fuel consumption is necessary for the further improvement of vehicle fuel economy. In this paper, a methodology for the breakdown of vehicle fuel consumption was studied and proposed for systematic analysis of the vehicle fuel economy. The energy equation for the vehicle power train was set up for the analysis of the vehicle fuel economy and simplified to be calculated or estimated using the measured data in a vehicle. The amount of fuel that was used in vehicle components under arbitrary driving conditions was quantified.

• 한국분무공학회지
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• 제29권1호
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• pp.7-15
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• 2024

This study investigates the performance of 2.0L hybrid vehicles equipped with Liquefied Petroleum Gas (LPG) fuel engines, using energy flow analysis. By incorporating a direct LPG injection system (LPDi), the research aims to overcome the reduced maximum output commonly associated with LPG engines. Moreover, the integration of a hybrid system is explored as a means to enhance vehicle fuel economy while reducing CO₂ and emissions. The study employs data from FTP-75 and HWFET driving cycle to inform future research efforts focused on predicting CO₂ emissions and fuel economy for Hybrid Electric Vehicles utilizing LPG Direct Injection. The findings offer insights into optimizing fuel systems for better environmental and operational performance in hybrid vehicles.

• 한국컴퓨터정보학회논문지
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• 제29권5호
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• pp.55-66
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• 2024

본 연구는 Pine & Gilmore의 체험경제이론을 바탕으로 선행연구에 근거하여 소비자에게 차별화된 가치를 제공하는 라이브 커머스의 체험요소(4Es)를 선정하고 체험요소, 몰입, 태도, 구매의도 간의 관계를 분석하였다. 라이브 커머스 이용자를 대상으로 온라인 설문조사를 진행하여 수집된 데이터를 바탕으로 연구모형의 가설을 검증하기 위해 Smart PLS 4.0을 활용한 경로분석을 실시하였다. 연구결과로는 첫째, 체험요소에 해당하는 오락적 체험, 심미적 체험, 교육적 체험, 현실도피적 체험은 몰입에 모두 유의한 영향을 미치는 것으로 나타났다. 둘째, 오락적 체험, 교육적 체험은 태도에 유의한 영향을 미치는 것으로 나타났으나, 심미적 체험과 현실도피적 체험은 태도에 유의한 영향을 미치지 못하는 것으로 나타났다. 셋째, 몰입은 태도와 구매의도에 유의한 영향을 미치는 것으로 나타났다. 넷째, 태도는 구매의도에 유의한 영향을 미치는 것으로 나타났다. 본 연구의 결과는 라이브 커머스의 체험요소에 대한 이해를 바탕으로 후속 연구 및 마케팅 전략을 위한 시사점을 제공할 것으로 기대된다.

• 한국융합학회논문지
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• 제10권11호
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• pp.321-326
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• 2019

대중교통의 이용량이 증가해 감에 따라 그 중 자동차의 연비를 올리기 위하여 많은 연구들이 수행되고 있다. 본 연구의 목표는 자동차의 3가지 모델을 통해 자동차의 연비를 높일 수 있기 위하여 전방 차체를 설계하고자 하는 것이다. 모든 모델들은 CATIA 프로그램으로 설계되었고 ANSYS 프로그램으로 자동차의 외부 공기에 대한 유동해석을 모델별로 수행하였다. 시속 90km/h의 운행 속도에서는 차체가 길쭉할수록 공기의 저항을 덜 받아 연비를 높일 수 있는 효과가 있다고 사료된다. 본 연구를 통하여 기차의 효율성을 극대화할 수 있는 자동차의 전방 차체를 설계하는데 도움이 될 수 있다. 본 연구에서의 자동차 내부에 있는 라디에이터 위치에 따른 유동 해석에 관한 설계 데이터를 이용함으로서 실제적인 자동차에서의 부품에 융합하여 그 미적 감각을 줄 수 있다.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 2002년도 proceedings of the second asia international conference on tribology
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• pp.407-408
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• 2002

This paper presents a split cooling system for a new inline 4-cylinder automotive engine. The split cooling system circulates coolant to the cylinder head and cylinder block separately. The coolant flow in the cylinder block is controlled by a $2^{nd}$ Thermostat installed at the outlet of cylinder block. The $2^{nd}$ thermostat closes when the coolant temperature is low. And this makes the coolant flow in cylinder block nearly stagnant, thereby reducing the coolant-side heat transfer coefficient and raising cylinder bore temperature. The $2^{nd}$ thermostat starts to open when the coolant temperature reaches a specified temperature. The test results on engine dynamometer show improved fuel economy and lower exhaust emission which result from the decrease in friction works and cooling loss. Also, several vehicle tests, with application of the new engine have been performed. Fuel economy improvement of 0.5{\sim}2.0%$ yields from different test modes and details are discussed in this paper.

• 한국도서관정보학회지
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• 제32권2호
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• pp.187-212
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• 2001

지식과 정보는 오늘날 무한한 경제적, 사회적, 개인적 가치를 지닌 자원으로 널리 인식되고 있다. 본 연구는 정보사회의 다양한 개념과 정보의 경제적 관점을 고찰하여 보고, 이를 토대로 정보주의와 정보 공유론의 정보 관점을 살펴본다. 정보의 공유를 통한 정보유통의 활성화를 보다 확대시키기 위해 정보 정책과 정보본연의 가치회복, 정보격차의 해소 및 정보공유를 위한 사회운동 등의 대안이 제시된다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2008년도 추계학술대회B
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• pp.3001-3006
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• 2008

Recently, the internal combustion engines have focused on reducing both the CO2 emissions in order to cope with severe regulations for greenhouse effect. Therefore, various new technologies have been developed in many countries. Among them, the cooling system is spotlighted because it has great effect on fuel efficiency. However, the present engine cooling system is almost same as one of the 50 years ago. The needs for high performance and compact size make it important to improve engine cooling system, down-sizing and control method of coolant flow. Thus, low fuel consumption technology such as control and synthetic management of cooling system was necessary to satisfy with these needs. In this study, we applied electric thermostat to improve the fuel economy. The fuel consumption was compared after driving FTP-75 mode on both conditions which were with a conventional wax thermostat and with a electric thermostat. The coolant temperature of opening the electric thermostat is higher.