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In this paper we derive and implement an algorithm for an indoor mobile robotics platform to estimate the manipulability of initially unknown obstacles while navigating through its environment to a pre-specified goal. The environment is represented by an evidence grid, where each cell contains a gamma-distributed cost as well as visual feature data in the form of a color histogram. While navigating,...
Recently, soft magnetic thin films with high complex permeability μ, which can be used in the devices working at GHz range, have drew great attentions. A reliable and authentic permeability is very important for their applications. Microwave complex permeability μ=μ'+jμ" can be obtained by using the vector network analyzer (VNA). Generally, a jig was used to hold the magnetic thin films and detect...
The paper presents improved constitutive models for SnAgCu solder. In the present study, the constitutive behavior for creep performance of 95.8Sn-3.5Ag-0.7Cu lead-free solder was investigated. The secondary creep stage was focused on. It is shown that the stress exponent n can be well-defined into two stress regimes: low stress and high stress. A new constitutive model, which considered back stress,...
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