http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
상용차 배기계에서 액티브 머플러를 이용하 배기 소음 제어
김홍섭(H. S. Kim),홍진석(J. S. Hong),오재응(J. E. Oh),송진호(J. H. Song) 한국자동차공학회 1998 한국 자동차공학회논문집 Vol.6 No.1
In this study, active muffler was designed and was manufactured for exhaust noise reduction of commercial vehicle, then experiment of real vehicle was conducted. In a manufactured active mufbecause the flow of exhaust noise in tail pipe outlet are become a plane wave, the global reof radiation noise from outlet and the placement of error microphone to avoid the exhaust gas of high temperature could be implemented. In control algorithm, reduction of noise of engine driving frequency and harmonic frequency can be archieved using the proposed reference signal including a fixed speed state(2,OOOrpm, 3,OOOrpm. 4,OOOrpm) and a run-up speed state(2,OOOrpm -4,OOOrpm) is accomplished with the active muffler installed in vehicle.<br/>
임재성(J.S. Lim),신백균(P.K. Shin),임경범(K.B. Lim),송진호(J.H. Song),김찬영(C.Y. Kim),이백수(B.S. Lee),정영식(Y.S. Jeung),임헌찬(H.C. Lim) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this research, an organic thin film passivation layer was newly adopted to protect the organic layer from ambient moisture and oxygen. As the organic thin film passivation layer, poly methyl methacrylate thin films (ppMMA) were deposited using a plasma polymerization technique. In order to their passivation performance for OLEDs, water vapor transmission rate (WVTR) of the ppMMAs were analyzed and luminance-current-voltage (L-I-V)/luminance-time (L-T) characteristics of the OLEDs with and without ppMMA passivation layer were investigated. The OLEDs had a structure of ITO/TPD (HTL)/Alq3 (EML&ETL)/Al. The OLED with ppMMA passivation layer showed improved L-T performance than that of without ppMMA passivation layer.