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The accuracy and speed of nondestructive testing can be improved by using multiple Lamb wave electromagnetic acoustic transducers (EMATs) instead of a single one. However, the methods for the arrangement of the multiple transducers have been seldom reported. In this paper, the acoustic field excited by the Lamb wave EMAT is described by a 3-D finite element (FE) model. Based on this acoustic field,...
Double-layer miniaturised structures are presented for reducing the mutual coupling between two closely spaced CPW-fed printed monopoles. The proposed structures employ two closely coupled layers, one made of conducting patches and another made of apertures (slits) in a ground plane. They are placed on either side of a very thin supporting dielectric substrate (55μm) with a rotation of 90° between...
We can add SCORM curriculum package and then browse in Moodle, but we can't add some useful resources or contents from SCORM to Moodle, that is to say, there is lack of interoperability between SCORM and Moodle. In order to solve the problem, this paper implements adding contents which extracted from SCORM to Moodle as resource and then editing, deleting and moving this resource easily in Moodle,...
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