ZhenYu Wu

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In 2008 January the twenty-fourth Chinese expedition team successfully deployed the Chinese Small Telescope ARray (CSTAR) to Dome A, the highest point on the Antarctic plateau. CSTAR consists of four 14.5 cm optical telescopes, each with a different filter (g, r, i, and open) and has a 4:5° × 4:5° field of view (FOV). It operates robotically as part of the(More)
Aiming at the problem of precision and real time in traditional methods to horizontal tilt correction of vehicle license plate, an approach based on matchstick model is presented. The principle is to get the correct license image from its tilt character line. A matchstick model is built up by abstracting the features of characters. By rotating the image(More)
By using of binder yarn in weaving process, the 3D woven reinforced composites have attracted lots of attentions due to their excellent delamination resistance. It is most suitable for special fibers such as carbon fiber, grass fiber, and aramid fiber. In this paper, a novel weaving machine including multi shedding mechanism, warper creel, weft insertion(More)
This paper presents a finite element analysis on the tensile stiffness of steel bolted connections, which are fabricated from thin-walled cold-formed steel strips and members. This type of bolted connection is usually used to assemble the diagonal bracing member in the light steel structure. Unlike the architectural steel structure, thin walled steel bolted(More)
Air splicing technology is used for yarn knotless connection. Compressed air passes through the splicer's chamber and forms a high velocity jet flow which drives a yarn to complete untwisting and twisting movement. The total mass of air flow consumed during a single splicing process is one of the major parameters to reflect the air splicer's performance.(More)
—According to the characteristic of monitoring data in geotechnical engineering, three nonlinear time series prediction models: whole-region methods(linear function, exponential function, Gauss function and Fourier function), local-region methods(linear function, power function and exponential function) and chaos neural network based on the local-region(More)
Stress-induced voiding (SIV) is investigated in Cu-based, deep-submicron, dual damascene technology. Two failure modes are revealed by TEM failure analysis. For one mode, voids are formed under the via when the via connects a wide metal lead below it. For the via which is instead under a wide metal line, voids are formed right above the via bottom. The void(More)
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