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There are many advantages of 1-3 piezocomposite transducers, such as lighter weight, lower specific acoustic impedance. The matching layer is commonly used to expand the bandwidth of composite transducers. The finite element modal of transducer was set up with ANSYS software and the structure of the transducer was optimized. A final 1-3 piezocomposite transducer was designed, which used the first...
With more and more high power high brightness LEDs adopted in general lighting applications, the state-of-the-art packages cannot meet the requirement of thermal management. Over-heating of an LED will cause premature failure because the efficiency, the spectrum, the reliability and the life of solid state lighting devices strongly depend on successful thermal management. Therefore, the requirement...
Laser Metal Deposition Shaping (LMDS) is a new rapid manufacturing technology, which combines with computer aided design, laser cladding and rapid prototyping. The advanced technology can build fully-dense metal components directly from the information transferred from a computer file by depositing metal powders layer by layer with neither mould nor tool. Since LMDS technology is a substantially complex...
The influences of the processing parameters on the microstructure and mechanical properties of the stainless steel thin wall parts by laser direct deposition were investigated. The results show that the obtained microstructure of the stainless steel thin walls is all composed of directionally solidified dendrites under different processing parameters, but the microstructure morphology and property...
The purpose of this paper is to visualizing the internal structure of historic relics by using the industrial CT. The image reconstruction of CT scan data can be used to observe and analyze the antique inside that the eye has no way to distinguish without disruption. This paper have built the simulated testing model, produced the data of simulating projection, and accomplished the comparison of image...
The purpose of this paper is to visualizing the internal structure of historic relics by using the industrial computed-tomography (CT). The image reconstruction of CT scan data can be used to observe and analyze the antique inside that the eye has no way to distinguish without disruption. This paper have built the simulated testing model, produced the data of simulating projection, and accomplished...
The purpose of this paper is to build a relics database using for preservation and administration for relics. The paper research on the two-dimensional reconstruction images store in the relics database. The reconstruction images of relics can be used to observe and analyze the antique inside that the eye has no way to distinguish without disruption. This paper have make experiments with six relic...
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