http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Erpeng Wang (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
An Intelligent Analysis and Mining System for Urban Lighting Information
Guanlin Chen,Erpeng Wang,Xinxin Sun,Yanqiang Tang 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.3
Urban lighting information plays an important role in digital urban management. In this paper, an IAMSULI (Intelligent Analysis and Mining System for Urban Lighting Information) is proposed. Using data analysis technology, case-based reasoning technology and data mining technology comprehensively, the system aims at providing better decision support for lighting management. IAMSULI is composed of system management, geographical information management, lighting information management, lighting data analysis, comprehensive classification statistics and event management. The system can help us quickly find lighting problems, provide early warning alarm of the problems, and also supply constructive information for the urban development.
-
Chen Wei,Wang Siying,Shi Xiaotao,Rheem Chang-Kyu,Lin Yongshui,Liu Erpeng 대한조선학회 2022 International Journal of Naval Architecture and Oc Vol.14 No.1
The Vortex-Induced Vibration (VIV) of a circular cylinder with different surface roughness is numerically simulated at a subcritical Reynolds number of 3900. The effects of surface roughness on the vibration response amplitude, hydrodynamic coefficients and wake vortex are analyzed. The results show that as surface roughness increases, four branches (initial, upper, super-upper and lower branches) appear in the VIV response for a smooth cylinder, and for a cylinder with a small surface roughness of KS=D ¼ 2:5 103 , this response changes to three branches (initial, upper and lower branches). The vortex shedding for the initial and lower branches is 2S mode, and that for the upper and super-upper branches (lock-in range) is P þ S, PþSþ and 2P modes. With increasing surface roughness, the maximum amplitude has little difference, and the width of the lock-in range increases. A large jump in the vortex phase at the transition of the initial and upper branches and a large jump in the total lift phase at the transition of the upper and lower branches are found, and these jumps are associated with a switch in the timing of vortex shedding (jump of the vortex phase: 2S mode to P þ S mode; jump of the lift phase: other modes to 2S mode). The results are significant for the development of flow and vibration control technology.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
