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Accurate control and economic control are the most important development directions for ships heading control system. This paper research the accurate and economic control optimization method for the heading control system. By designing the accurate control mode, the heading control accuracy can be enhanced. This can ensure the safety of ships navigations in special of the narrow waterway voyage,...
Instructions extraction extracts structured information from unstructured natural language instruction text, is an application of information extraction in the field of human-computer interaction. For a natural language instruction text, if we want to extract structural information which can able to describe the text semantic completely, it is critical to position these words or phrases and mark one...
Three-dimensional chrysanthemum-like Co 3 O 4 was prepared via a facile hydrothermal route without any template, and a subsequent calcination process. With a controlled concentration of the homogeneous precipitation agent, urea, a chrysanthemum-like precursor was hydrothermally obtained at 120°C for 20h, and the morphology was kept for Co 3 O 4 after a subsequent calcination...
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