Abstract: This paper presents a novel ultrasonic phased array scanning method for the internal of gas pipelines. The proposed method achieves a complete scanning of the pipeline interior by ...

We asked mayors about President Trump, immigration and their lives outside City Hall. By Mitch Smith and Alexandra Eaton The Times spent three days conducting interviews in Tampa, Fla., at an annual ...

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Abstract: In underwater localization scenarios, especially for the ultra short baseline (USBL) system, array calibration is essential. The localization performance may decrease rapidly when the array ...