http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정치형 엔진의 연소 조건 변동에 따른 엔진 진동 특성에 관한 연구
유승훈(Seunghun Yu),주태헌(Taeheun Joo),이유종(Yoojong Lee),최두석(Dooseuk Choi),조항원(Hangwon Cho),이창언(Chang-Eon Lee) 한국연소학회 2013 KOSCOSYMPOSIUM논문집 Vol.2013 No.12
The stationary engines are widely used as power supplies for GHP or CHP, Micro generation system. but, the engine is used with diesel engine at the stationary engine system because of their rapid response to operation, high reliability, and good durability. However, diesel engines also have the disadvantage as well as high level of vibration and noise. So, the stationary is changed from diesel engine to alternative gas fuel(LPG, CNG, or DME) engine. This paper shows experiments and analysis for the vibration characteristics of changed combustion condition on the stationary engine used LPG fuel.
성봉석 ( Bongsuk Sung ),유승훈 ( Seunghun Yu ) 한국유통경영학회(구 한국유통정보학회) 2015 유통정보학회지 Vol.18 No.2
Purpose: Purpose - We investigate how the industrial use of GMOs is defined, what factors may affect firms’ industrial use of GMOs, and how firms’ industrial use of GMOs may influence their economic performance, taking into account the normative message that firms must do in a way of something that is sustainable development. Research design, data, and methodology: This study tested the links between the causes and effects of a firm’s industrial use of GMOs in the context of socially sustainable development using survey data from South Korean firms. The study used a structural equation modeling approach via PLS for data analysis. Results: The analysis aimed to compare food/beverage sector with medical/pharmaceutical sector. The empirical results show that sociopolitical and economic pressures vary across the two sectors and have positive effects on firm performance in the two sectors. The study also finds that activities to secure both social and economic legitimacy involve enhancing a firm’s economic performance. Conclusions: It was confirmed that there is a structural relationship between sociopolitical and economic forces, firms’ activities to secure social and economic legitimacy related to the industrial use of GMOs and their economic performance.
중국 제조업 수출기업의 국제 기업가 지향성이 수출 성과에 미치는 영향: 흡수 능력의 매개효과를 중심으로
진우이 ( Yuyi Chen ),유승훈 ( Seunghun Yu ) 한국중소기업학회 2021 中小企業硏究 Vol.43 No.3
본 연구의 주 목적은 중국 제조업 중소기업의 국제기업가 지향성이 수출 성과에 미치는 영향을 실증 분석 하고 함의를 도출하는 것이다. 이를 위해 본 연구에서는 중국 제조업 수출 기업을 대상으로 총 183개의 기업 데이터를 실증분석에 사용하였다. 본 연구의 연구결과를 요약하면, 첫째, 국제기업가 지향성은 수출 성과에 유의한 정(+)의 영향을 미치는 것으로 나타났고, 둘째, 국제기업가 지향성은 흡수역량에 유의한 정(+)의 영향을 미친다. 셋째, 흡수역량은 수출성과에 유의한 정(+)의 영향을 미치는 것으로 나타났으며, 넷째, 환경 역동성과 네트워크 역량이 강할수록 국제기업가지향성과 수출성과의 관계는 더욱 강화되는 것으로 나타나며, 마지막으로 국제화기간이 길수록 흡수역량과 수출성과의 관계는 약화되는 것으로 나타났다. 본 연구의 시사점을 정리하면 다음과 같다. 중국 중소기업은 혁신적이고 진취적이고 위험을 감수할수록 수출성과가 더욱 향상되고, 유사한 경쟁기업의 경영방식을 흡수하는 능력이 향상된다는 것을 시사한다. 또한 중소기업 경영자는 국제기업가지향성을 통한 수출성과를 향상 시키기 위해서는 네트워크 역량을 지속적으로 강화 시켜야 하고, 역동적인 환경에서 이러한 관계는 더욱 강화되는 것으로 나타났다. 나아가서 기업 경영자의 흡수 역량이 수출성과에 미치는 영향은 기간이 지날수록 영향력이 약화됨을 보여주고 있다. The purpose of this study is to study the effect of internatioanl entrepreneurial orientation of small and medium-sized Chinese manufacturing companies on export performance. A total of 183 corporate data were used for empirical analysis for Chinese manufacturing export companies. In summary, first, international entrepreneurial orientation was shown to have a significant positive effect on export performance, second, international etrprenurial orientation was shown to have a significant positive effect on absorption capacity, and third, the stronger environmental dynamics and network capacity, the stronger international business orientation and export ability. The implications of this study are summarized as follows. It suggests that the more innovative, enterprising and risk-taking Chinese SMEs are, the better their export performance and the better their ability to absorb foreign knowledge. It also suggests that small business managers must continue to strengthen their network capabilities to improve export performance through international entrepreneurial orientation, and this relationship is further strengthened in a dynamic environment. It also suggests that the impact of firm’s absorption capacity on export performance will weaken over time.
표영덕(Youngdug Pyo),권오석(Ohseuk Kwon),김강출(Gangchul Kim),유승훈(Seunghun Yu),류정인(Jungin Ryu),이영재(Youngjae Lee) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Dimethyl ether(DME) is an oxygenated fuel with a cetane number higher than that of diesel oil. It meets the ULEV emission regulation and reduces the smoke to almost zero when used in a diesel engine. In the present study, engine performance and exhaust emissions were' investigated with a 8 liter conventional DI diesel engine by using dimethyl ether fuel for development of medium-duty DME bus. Test results showed that the torque and the power with DME were about 70% as those of pure diesel oil, but the brake thermal efficiency decreased a little. Also, smoke index from DME engine showed nearly zero level and NOx was decreased a little compared to diesel oil.
박태준(Taejoon Park),오휘성(Wheesung Oh),유병훈(Byeonghun Yu),유승훈(Seunghun Yu),이창언(Chang-Eon Lee) 한국연소학회 2015 KOSCOSYMPOSIUM논문집 Vol.2015 No.5
To improve the atmosphere environmental quality near the gas station, the installation of vapor recovery system has been expanded recently. The vapor recovery system is divided into two parts. One control method for vapor emitted during oil unloading is called Stage Ⅰ, in which the cargo tank retrieves the vapor emitted during product unloading at the gas station. The other is Stage Ⅱ, in which the gas station tank retrieves the vapor emitted during oil unloading at the car. This study was investigated to develop prediction model for behavior of VOCs(Volatile Organic Compounds). Through prediction model, we estimated the VOCs emission factors according to season.