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; 文献标志码:A 文章编号:1672-7207(2013)07-2771-07 Numerical modeling and mechanism of back-steam braking for steam-powered ships ZHU Yong1, JIN Jiashan1, LIU... maneuverability in traditional braking method of steam-powered ships, the mechanism of back-steam braking for steam-powered ships was analyzed. The simulation models of the composition units and whole system......
have narrow effects on attaining a perfect billet. However, employing back pressure could be reliably used to diminish shear localization, billet cracking, segmentation, and damage. Moreover, diminishing the flow localization using back pressure leads to uniform material flow and the billet homogeneity increases by 36.1%, when back pressure increases from 0 to 600 MPa. Key words: back pressure......
-mediated method; glass substrate; surface plasmon resonance; fluorescence; surface enhanced Raman scattering 1 Introduction Construction of metallic nanoparticles has attracted significant attentions... on surface plasmon resonance (SPR) phenomenon on biosensing, such as the surface enhanced Raman scattering (SERS) [5]. Incorporation of Ag nanoparticles into a film is also an efficient way to construct......
; 文章编号:1672-7207(2013)06-2515-05 Back analysis of rock slope GSI magnitude under Hoek-Brown criterion SUN Zhibin, YANG Xiaoli, HUANG Fu (School of Civil Engineering, Central...-Brown criterion. The relationship between GSI and the slid surface depth was analyzed and the change law of slid surface with γ and H was plotted. The results show that the GSI can be back analyzed......
. An analytical model was used to evaluate the limit skin friction at the pile-soil interface. The model based on the hyperbolic transfer function technique and back analysis was carried out...; load transfer method; hyperbolic model; complex method; back analysis 为有效减少建筑物的总沉降和不均匀沉降,长桩和超长桩在深厚软土地基中得到了广泛应用.很多学者[1-6]对深厚软土地基预制管桩的竖向承载特性,荷载传递机理等进行了研究.由于影响超长桩工作特性的因素较复杂,其受力机理和承载变形特性还不明确,目前为止仍未有较好的计算......
Engineering, Shandong Jiaotong University, Jinan 250357, China; 2. School of Control Science and Engineering, Shandong University, Jinan 250061, China) Abstract: A back propagation network sliding mode... of simulation demonstrate the presented control method has good adaptability and robustness. Key words: ship course nonlinear; variable structure control; back propagation network; reaching law 20世纪20......
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covering this underlying structure at more reaction steps was confirmed by exploiting surface-enhanced Raman scattering (SERS). Key words: triangular Au-Ag framework nanostructures; multi-stage galvanic replacement reaction; surface plasmon resonance; surface-enhanced Raman scattering 1 Introduction Recently, many scientists have interested in bimetallic nanostructures comprised of noble......
. If all the electrical field quantities are made to vanish, then equation (1) reduces to the dynamic J-integral of fracture mechanics. For example, the scattering of an incident anti-plane shear wave.... As, . As , . This is to say, the mode-Ⅲ dynamic stress intensity factor approaches to corresponding static value. Key words: dynamic-integral; conservation; scattering of anti-plane shear wave......
