Baidu Online Network Technology (beijing) Co., Ltd.

University of Science and Technology Beijing

Baoyu Zhang

Hao Sun

Xin Zhang

Feng Li

Xiao Xi Liu

Shilei Wen

Fu Li

Xubin Li

Haiping Wang

Xi Zeng

Rongrong Han

Fantian Meng

Xinwei Yu

Jiaqi Jiang

Chenghao Chang

Meng Qi

Lixing Gong

Yueyang Song

Di Zhang

Xiaoshan Huang

Xinfang Zhang

Mengcheng Zhou

Longge Yan

Changhao Liu

A device and method for preparing a low-impurity regenerated brass alloy through step-by-step insertion of an electrode are provided. The device includes a melt heating apparatus, an electrode displacement apparatus, and a pulse current generation apparatus. The automatic electrode lifting apparatus is controlled to adjust an insertion depth of the graphite electrode plate in the metal melt, and the pulse current generation apparatus is controlled to adjust the parameters of pulse current to achieve the impurity reduction on the metal melt. The preparation of a low-impurity regenerated brass alloy involves a short production process, simple operations, low energy consumption, and high impurity removal efficiency, and is suitable for regeneration and large-scale continuous production of non-ferrous metal alloys.

Device and method for preparing low-impurity regenerated brass alloy through step-by-step insertion of electrode

The present disclosure provides a method and apparatus for extracting a video preview, a device and a computer storage medium. The method comprises: inputting a video into a video classification model obtained by pre-training; obtaining weights of respective video frames output by an attention module in the video classification model; extracting continuous N video frames whose total weight value satisfies a preset requirement, as the video preview of the target video, N being a preset positive integer. It is possible to, in the manner provided by the present disclosure, automatically extract continuous video frames from the video as the video preview, without requiring manual clipping, and with manpower costs being reduced.

Method and apparatus for extracting video preview, device and computer storage medium

The present disclosure provides a video displaying method and apparatus, a device and a computer storage medium, wherein the method comprises: positioning a target video; displaying a video preview of the target video, the video preview being a video segment extracted from the target video. This displaying manner exhibits a stronger capability of expressing the video content. The user can better know whether the video is the desired content. The present disclosure may reduce a probability of the user missing desired video resources and reduce a probability that the user finds that the video content does not meet an expectation after he views the video content, thereby helping the user to conveniently and effectively view the desired video resources.

Video displaying method and apparatus, device and computer storage medium

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Beijing, China

Baoyu Zhang