Global path planning problem for autonomous underwater vehicle (AUV) based on large-scale chart data is investigated by using ant colony optimization (in shorts, ACO) algorithm.

在大范围海洋环境中，应用蚁群算法对自主式水下潜器(AUV)的全局路径规划问题进行了研究。

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"It should be noted that this small scale chart is considered to be unsuitable for close inshore navigation, " the UKHO told Lloyds.

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The heatwave across Australia in recent weeks has been so intense that the Bureau of Meteorology has had to add a new shade to its colour-coded temperature chart, so the scale now reaches above 50C.

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Its RSI or Relative Strength Index was at 26 on Friday on a scale of 1 to 100 (top portion of the chart) and has rebounded to about 39 on Monday morning.

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