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Fiber Bragg grating(FBG) written in rotated fused polarization maintaining(RF-PM) fiber is proposed. The fiber structure constructs two Fabry-Perot interferometers. The spectral characteristics is analyzed and simulated. The Bragg reflection spectrum of fiber subjected to different loading angles are measured as the rotated fused angle is 22.5°. The experimental results show that the asymmetrical...
The calculation of cogging torque for the SIPM machine is carried out based on the finite element analysis. It is shown that the cogging torque calculated by using virtual work method is close to each other under different meshes and contour models. However the calculation of the Maxwell stress tensor method is more sensitive to the mesh and contour model. So it is extremely important for the Maxwell...
Existing overlay multicast (also called application layer multicast) protocols can be categorized into tree-first and mesh-first approaches by the type of overlay they build. These two approaches complement each other in terms of performance and scalability. In this paper, we propose and evaluate hybrid overlay multicast protocol (HOMP), which is specifically designed for low-delay, many-to-many applications...
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