By William Lau (Ed.)
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Summarizes info on wooden as an engineering fabric. offers homes of wooden and wood-based items of specific obstacle to the architect and engineer. contains dialogue of designing with wooden and wood-based items besides a few pertinent makes use of.
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As seen above, the biological mechanisms are extremely complex. However, the principles of multi-stage repair, with multiple pathways, or multi process redundancy are key examples where biological repair can inspire the future development of structural self-repair processes. Currently, there are two methods used to create the ‘self-healing’ in composite. White and Sottos  from University of Illinois use microcapsules to contain the healing agent while Ian Bond  from University of Bristol, UK uses hollow glass fibre [6-11].
136 53 tensile bar layer by layer, and measured the surface resistance at different depth under the original surface of the tensile bar. At the same time, the scraps were collected to be analyzed. 1 shows, there are three regions from surface to center of the tensile bar. First there is a high electrical resistant layer, with the thickness of about 250 micrometer. Second there is a transitional region, with the thickness of about 100 micrometer. Then there is a low electrical resistant body. The sharp increase of electrical resistivity of the composites after injection molding and the existence of high electrical resistant skin are both very harmful for the application of conductive product, so we must analyze the reason and find out the solution.
There is only a slight gain in strength as compared to specimen D. This suggests that effective repair will be completed if the samples are left for 24 hours. The effectiveness of repair reflects on the ability of the healing system that was chosen. Selecting the right healing system is essential to the self healing capability. Another aspect of self healing capability is the aspect of the durability or shelf life of the healing agent which is the reason why specimen E was conditioned for week 4.