摘要:Take a long span truss rail and road cable-stayed bridge as the example, using nonlinear finite element method, properties of the truss rail and road
摘要:Aiming at the shortcoming of optimization problems in continuous space based on ant colony optimization which is easy to fall into local optimums and
关键词:quantum evolution;ant colony algorithm;continuous space optimizing
LIU Wenfeng,LI Yi,OUYANG Hongqun,ZHANG Jinxiu,XIONG Xiaomin
Vol. 48, Issue 3, Pages: 32-36(2009)
摘要:Thermoelectric oxide γ-Nax24is measured by Dynamic Mechanical Analysis (DMA) in the temperature range of 120~370 K with the frequencies of 1~20 Hz. A relaxation-typeinternal friction peak around 150 K with an activation energy of 0.39 eV is observed for the first time. The temperature dependence of impendence isobtained via LCR meter (TH2816) in the temperature range of 100~300 K at the frequencies of 2 kHz~100 kHz. A relaxationtype impedance peak with an activation energy of 0.13 eV is observed below room temperature, which moves to lower temperature when the sampleis under a magnetic field of 1 kGs. Our results show that γ-Nax24mechanical and impendence relaxations.
摘要:Digital fingerprinting technology is the latest algorithm used for digital right management (DRM) and digital content protection, and ecommerce is an
GUO Jianyan,CAO Lin ,LONG Yunliang,GONG Zhuqian
Vol. 48, Issue 3, Pages: 47-50(2009)
摘要:Passive localization is a hot research topic recently.The transmitter location was estimated using inverse diffraction parabolic wave equation localization
摘要:The production, secretion of allelochemicals and the strength of allelopathic effect of plants largely depend on their habitat besides their inscape.
摘要:The research on radar data quality control is significant for exerting the advantages of Doppler Weather Radar in preventing flood and mitigating disaster