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Probability of detection (POD) for defects under given test conditions is an important statistical technique for the detection reliability assessment. In this study, we investigate a set of 45 steel specimens with fatigue cracks in different lengths. Experimental results show that the increase of the crack length will enhance the crack heating response, and the logarithmic relationship between the...
One of the key challenges of deep Si etch is feature control versus high etch rate. Scallop sizes increase with increased etch rate and uniformity degrades. This paper provides an overview of an enhanced rapid alternating process (RAP) in combination with a hardware design that breaks this trade off. Scallop control is achieved through very fast switching of gasses, bias and pressure (up to 10 times...
For a long time, the 10 kV distribution network is gradually built up with the increase of load demand. There's a lack of systematic planning and standardized construction in its structure. Combining local economic development level, grid situation, load characteristics and other factors, the distribution network in some developed areas formed typical structure with local characteristics. But the...
In distributed small satellites, the existence of the baseline error will affect the realization of the three functions: synthetic aperture radar imaging, ground moving target indication and altitude measure. A new 3-D baseline error estimation method for distributed small satellites is proposed in this paper. This method separates the along-track baseline and the cross-track baselines through image...
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