• Journal of Engineering Education Research
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• v.15 no.5
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• pp.25-30
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• 2012

"The engineering education program for environmental intention and value creation" has been executed from 2008 to 2010 in Suzuka National College of Technology, which program was promoted as "Good Practice for Education" by Ministry of Education, Culture, Sports, Science and Technology Japan. "Eco-car project" is one of these practical ecology/environment education programs. The project's members have been learning and researching the environmental managements by the process of design, manufacturing, and assembly of solar car, highly effective fuel consumption car (Eco-run car), electric vehicle and fuel-cell car. Also this project was supported by some professional experts of the local industries and community. The students learned the actual industrial technique, the engineering management and the structure of local industries by this project. In this paper, the environmental intention engineering design education with local industry collaboration is introduced.

• The Korean Journal of Financial Management
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• v.20 no.1
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• pp.331-339
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• 2003

We investigate long-run relationships between industry relatedness, operating performance, and stock performance after equity carve-outs(ECO). For homo-industry ECOs, 12-month CAR of subsidiary firms is 26.52% and significantly positive at the 5% level and BHAR is 22.19%. For hetero-industry ECOs, subsidiary 12-month CAR and BHAR are 35.14% and 39.64%, respectively, which are significant at the 1% level. On the other hand, long-run performance of parent firms is insignificant for any sub-sample. Excess operating performance of subsidiaries is significantly positive at the first year and insignificant thereafter. The lower the offering ratio is and the better the operating performance is, the better the subsidiary stock performance is. Unlike IPOs and SEOs, shareholders of subsidiaries benefit from ECOs and parent stocks do not underperform. Hetero-industry ECOs improving corporate focus are more effective restructurings than homo-industry ECOs.

• The Korean Journal of Financial Management
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• v.19 no.2
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• pp.253-270
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• 2002

본 연구는 1986년에서 1996까지 76개의 분리공모(ECO) 기업을 대상으로 분리공모를 통한 구조조정의 성과를 분석하였다. 기업규모와 장부가/시가 비율(BE/ME)을 통제한 결과, ECO 후 모회사의 24, 36개월간 누적 비정상수익률(CAR)은 각각 -0.79%와 -10.31%, 평균 보유기간 비정상수익률은 각각 -1.94%와 -7.08%이었다. 반면, ECO 후 자회사의 24, 36개월간 CAR은 각각 33.31%와 27.49%, 평균 보유기간 비정상수익률은 각각 41.36%와 34.43%이었다. 또한, 24, 36개월간 모회사의 상대적 부(WR)는 각각 0.98과 0.94, 자회사의 WR은 1.39와 1.33이었다. 한국시장에서도 ECO 모회사는 유의하지 않는 장기 저성과를, ECO 자회사는 최초공모나 유상증자가 장기 저성과를 보이는 것과는 달리 장기 고성과를 보여 분리공모를 통한 구조조정은 자회사의 주주 부를 증가시키는 것으로 나타났다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.965-968
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• 2013

In this paper presented car sharing service using eco driving components. The car sharing service is composed of a web service and a smartphone application. The proposed service claims a newly time and fuel consumption based service charge. In order to get the fuel consumption, we used a MAF (Mass Air Flow) of OBD-II data. The application connects the smartphone to the car's OBD-II port through Bluetooth.

• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.44-44
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• 2017

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.1
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• pp.193-208
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• 2022

The purpose of this study is to verify how the EV rent-a-car satisfaction affect the purchase intention of the EV. As a result of the study, Gender, Age, Quietness & Ride comfort, Charging infrastructure had a significant correlation with the EV rent-a car satisfaction level. and It is confirmed that the factors of Age, Quietness & Ride comfort, Charging infrastructure affect the EV purchase intention of the EV through the EV rent-a-car satisfaction level. The differentiation of the study is that it was analyzed through empirical research, focusing on the EV rent-a-cars as a major means of spreading the EV. also the analysis target was limited to first-time the EV's Users through the EV rent-a-car.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.46 no.2
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• pp.82-101
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• 2023

This study is to identify the maintenance service quality of eco-friendly cars, which are rapidly increasing recently. Research is conducted by synthesizing research from the perspectives of internal employees and external customers by using the service profit chain model. Specifically, it is to study the overall structural relationship between internal customer satisfaction, physical quality, interaction quality, outcome quality, external customer satisfaction and long-term orientation. For the study, 202 questionnaires were collected from internal employees and 204 questionnaires from external customers. The results of testing the research hypotheses targeting the internal employee group are as follows. As a result of testing hypothesis 1, internal customer satisfaction has a significant positive (+) effect on physical quality and interaction quality. As a result of testing hypothesis 2, the service quality of eco-friendly car maintenance has a significant positive (+) effect on each other. As a result of testing hypothesis 3, physical quality and outcome quality have a significant positive (+) effect on external customer satisfaction. The results of testing the research hypotheses targeting an external customer group are as follows. As a result of testing hypothesis 2, in the relationship between eco-friendly car maintenance service quality, physical quality has a significant positive (+) effect on interaction quality, and interaction quality has a significant positive (+) effect on outcome quality. As a result of testing hypothesis 3, interaction quality and outcome quality have a significant positive (+) effect on external customer satisfaction. As a result of testing Hypothesis 4, external customer satisfaction has a significant positive (+) effect only on intention to reuse. Finally, as a result of examining the difference in perception between the internal employee group and the external customer group in eco-friendly car maintenance service quality and external customer satisfaction, it was verified that there was a significant difference only in outcome quality and external customer satisfaction.

• Special Issue of the Society of Naval Architects of Korea
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• 2013.12a
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• pp.60-65
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• 2013

Now days, the demands of new type hull lines and optimum design in relation with the EEDI (Energy Efficiency Design Index) regulation and eco-friendly high efficiency vessel design are mandatory clauses in Euro financial crises era. Therefore, in correlation with the above, we tried to find the optimum results and revealed the alterations of supporting structure for liftable car deck latch on PCTC. Generally, PCTC (Pure Car & Truck Carrier) design has been performed by 2 pillar space model F. E analysis without vehicle loads on liftable car deck to evaluate the structural adaptability. So, we applied mentioned vehicle loads on pillar and side transverse web on model to compare with not applied model and performed the ultimate strength analysis of improved design for the safety evaluation.

• Proceedings of the KSR Conference
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• 2011.05a
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• pp.1378-1387
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• 2011

Seoul Metropolitan Rapid Transit Corporation - which is operating the subway lines No. 5, 6, 7 and 8 of Seoul's subway - has been operating a variety of motor cars and rail inspection vehicles to transport workers and materials into the tunnel at night after the daily revenue service for the maintenance of tunnel structure and track. However, the air quality in tunnels has been contaminated due to the operation of diesel engine cars, and rail inspection vehicles are now having higher chances of risks since the lightweight vehicles made with aluminum bogie became too obsolete. In this study, MRT type eco-friendly electric multi-inspection car has been elaborated for the purpose of improvement of tunnel environment and replacement of motor cars and rail inspection vehicles.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.13 no.1
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• pp.75-85
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• 2014

Existing car-sharing systems have difficulty meeting the demands of one-way trips and connecting to other sharing systems. Therefore, in this study, a multi-mobility sharing service management system that was able to meet the demands of the one-way and round-way trips and shared diverse transportation modes such as cars (electric car/gasoline car), electric motorcycles and bicycles was developed, and a field study was conducted in Kashiwa-no-ha, Kashiwa City and Nagareyama City, Chiba Prefecture, Japan. As a result of the field test, it was confirmed that this system supplied the one-way demands for 54.9% of total car trips and 43.9% of the user used multiple transportation modes by the common interface. In addition, this system contributed to reduce carbon dioxide emissions by sharing vehicles and using eco-friendly vehicles. The developed sharing system is expected to improve mobility by meeting more various types of traffic demand than existing car sharing systems.