http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이정기(JungKi Lee),용기중(GeeJoong Yong),이종현(JongHyun Lee),이광범(KwangBum Lee),홍윤석(YunSeog Hong),이현우(HyunWoo Lee),정혁(Hyuk Jung),임종순(JongSoon Lim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
The effective use of vehicle have a energy savings and a reduction of greenhouse emission cause for a greenhouse effect. For the high cost of fuel and the effectuation of The Kyoto Protocol, we should achieve the vehicle Fuel economy and CO₂ emission test according to the variable vehicle weight and should announce the effectiveness that fuel economy and CO₂ emission depend on the driving method and circumstance to the driver.
고속로 적용을 위한 3차원 유한요소 해석을 이용한 복합소재 강판의 압연 공정 모사
이정기(Jungki Lee),김지현(Ji Hyun Kim) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
For long-cycle and long-period liquid metal fast reactor (LMFR), the integrity of reactor materials including fuel cladding and structural materials is important, and especially in the case of structural materials, it should be compatible in high temperature, high dpa, and also special chemical environment according to its liquid metal coolant type up to designated reactor life time. A functionally-graded composite (FGC) tube is proposed by M. P. Short et al. which is composed of a thin layer for corrosion resistant layer and structural layer which guarantees mechanical strength, creep rupture strength and shows less irradiation swelling. In this study, 3 dimensional finite element analysis of hybrid-layer plate is conducted. Fe-12Cr-2Si alloy is selected as corrosion resistant material and F91 (T91) is selected as structural layer. Because of flow stress differences between two alloys, F91 deforms larger than Fe-12Cr-2Si during the rolling, then curvature is formed on rolled plate. To make flat-rolled plate, two ways are applied. One is controlling upper and lower roll rotation speed, and another is controlling the friction coefficients at the contacts.
이정기(JungKi Lee),권해붕(HaeBoung Kwon),김남용(NamYong Kim),정혁(Hyuk Jung),안효근(HyoKun An),이현우(HyunWoo Lee),김광일(KwangIl Kim),임종순(JongSoon Lim),구선웅(SeonWoong Koo) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Max. power test of vehicles is generally conducted using engine dynamometers. However, the power test have become more complicated to perform on the engine dynamometers due to new emerging engine technologies and control systems. It is even more difficult to control all test parameters on the engine dynamometer, especially for hybrid vehicle, since more advanced and cutting edge technologies have been used compared to the convention vehicle using fossil fuel. Therefore. the possible usage of chassis dynamometer for the system power test of hybrid and conventional vehicles have been investigated in this study. It was shown that the results of system power of all vehicles tested were approximately ranging from 70 to 80 percent lower than the power measured on the engine dynamometer. The safety standards with regard to the power of hybrid vehicle will be established later based on the he results from this study.
이정기(Jungki Lee),박용성(Yongsung Park),정혁(Hyuk Jung),최승환(Seung-hwan Choi),김남용(Nam-yong Kim),김배수(Baesoo Kim) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Currently there is a standard of fuel economy for heavy duty vehicle in korea MLTM. But this test method is static speed method(60㎞/h). Hybrid and Electric vehicle have special functions, which are regeneration brake system and dual energy sources to improve the fuel economy. So It is necessary to amend the vehicle safety standard on heavy duty fuel economy that apply the characters of Hybrid and Electric vehicle. I will research the speed pattern and distribution of idle, cruise and acceleration of national road and world wide test cycle, which ETC, HHDDT, JE05 and WHVC. and I will measure fuel economy of the combined road which are urban, rural and motorway In addition I will measure the fuel economy of the selected standard routes in seoul and busan. The test result of WHVC is a nearly average value of other test modes. The average speed between urban, rural and motorway in WHVC and combined road is similar. The fuel economy and distribution of speed and acceleration between urban in WHVC and the selected standard routes in Seoul and Busan are very similar. More research and test are needed to develop the new test mode of fuel economy for heavy duty vehicle.
Lee, Jungki(이정기),Park, Seongryul(박성렬) 한국산업경제학회 2021 산업경제연구 Vol.34 No.6
대학은 재학생들이 졸업 이후 성공적으로 사회에 안착할 수 있도록 폭넓은 경력개발지원 서비스를 제공하고 있다. 그러나 대학에서 제공하는 서비스를 이용한 재학생들의 만족 여하에 따르는 후속 태도 및 행동의 결과에 대한 이해는 다소 요연한 실정이다. 본 연구는 재학생들이 대학의 경력개발지원 서비스가 만족스럽게 느껴지게 되면 이에 따른 모교에 대한 소속감 및 모교 충성의도의 형성에 유의한 영향을 미치는지를 조사해보고자 실시하였다. 본 연구는 서비스 마케팅, 소비자 행동, 그리고 교육 심리학의 이론과 연구 결과를 바탕으로 연구모형과 일련의 가설을 설정하였다. 구체적으로, 학생들이 경험한 대학 경력개발지원 서비스에 대한 만족도와 모교의 충성의도 간 관계에서 그들이 대학에 대해 가지는 감정인 소속감의 매개효과 개연성에 대해 주목하고, 해당 변인의 영향력을 검증하였다. 실증을 위해 국내의 한 사립 대학교 경영학과 재학생들을 대상으로 설문조사를 실시하였다. 본 연구의 결과는 학술적으로 학생들의 모교 충성도 형성 과정에 대한 독특한 통찰력을 제공하는 것으로 밝혀졌다. 또한 대학의 실무자에게는 모교에 대한 학생들의 충성도를 확립하기 위한 대학의 관계 마케팅 투자의 지침을 제공할 수 있을 것으로 판단된다. This study explores an approach to instill students’ loyalty intention to their colleges while they are in the program. The study proposes and empirically investigates quality of on-campus career guidance services as a promising factor leading to students’ loyalty intention to their alma mater. The study draws from theories and research findings in services marketing, consumer behavior, and education psychology to develop a research model that investigates not only the direct effect of the quality of on-campus career guidance services upon the student’s loyalty intention, but also the indirect effects generated by career optimism and the sense of belonging. Data collection was carried out at a major business school in South Korea. The study’s findings provide a unique insight into the understanding of students’ loyalty development process and suggest a guideline of relationship marketing investments for colleges to establish students’ loyalty intention to alma mater. Implications for practitioners and researchers are provided.
자동차 급가감속에 따른 연비 및 온실가스에 미치는 영향
이정기(Jungki Lee),김배수(Baesoo Kim),최동석(Dongseok Choi),김훈명(Hoonmyoung Kim),권해붕(Haeboong Kwon),박용성(Yongsung Park) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
This study is presented to show that relation among maximum acceleration, acceleration, fuel economy and CO₂ according to vehicle velocity. And also, we performed experiment and analysis about acceleration & fuel consumption under driving on the actual road. Maximum Acceleration according to vehicle velocity is estimated that the first beginning of vehicle movement is higher than any other section, and it tend to show that is decreasing according to an vehicle velocity increasing. Fuel economy is decreasing like nonlinear according to increase acceleration. On the other hand, CO₂(g/㎞) shows that is increasing linearly. In case of gradual acceleration, Fuel consumption doesn’t exceed 5㏄/sec, driven by the acceleration was less than 2 ㎨.
Lee, Jungki(이정기),Sam Fullerton 한국서비스경영학회 2016 서비스경영학회지 Vol.17 No.3
This study explores an intricacy between cultural character and consumer ethics. The study investigates the South Korean public’s perceptions of a set of 12 scenarios describing ethically questionable consumer actions. The scenarios include illegal actions such as fraudulently inflating one’s losses when filing an insurance claim and legal, but questionable actions such as showrooming. The 12 scenarios exhibited a wide range of mean responses, supporting the commonly-stated premise that consumer ethics is situational in nature. Furthermore, the results document a relationship between the acceptance of ethically questionable behaviors and the extent of monetary loss incurred by the victimized organization.
최동석(Dongseok Choi),이정기(Jungki Lee),이광범(Kwangbum Lee),권해붕(Heaboung Kwon),용기중(Geejoong Yong) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
The concept of system power for motor vehicles becomes necessary because multi power sources and drivetrain are adapted in motor vehicles for the energy savings and the precise emission controls. System power is defined as the power is measured on the powertrain test bed. It is possible to measure the wheel torque precisely using the powertrain test bed due to the direct connection between absorber and the end of drivetrain without tire. Two different test methods were developed for system power measurement. One is the acceleration at full load under road load (i.e., Method Ⅰ); the other is the acceleration at full load under constant vehicle speed (i.e., Method Ⅱ). Test vehicles were ICEV, HEV, FCEV, and EV. The drivetrains for the vehicles were AT, CVT, and reduction gear respectively. It was found that ICEV had the lowest maximum system power by the method I due to the efficiency of the drivetrain. The other vehicles were similar results of the maximum system power for two different test methods. Therefore, it could be adopted these two methods for the measurement of system power in motor vehicles.