Abstract: A method includes receiving a three-dimensional (3D) point cloud and generating a plurality of buckets by applying a spatial hash function to coordinates of points in the 3D point cloud. The method includes arranging, based on the spatial hash function, the points into a contiguous block of memory. The method includes performing a plurality of attention iterations. Each attention iteration includes selecting a subset of the plurality of buckets to define an attention scope for the attention iteration, loading point features corresponding to the points in the attention scope from a contiguous block of memory into a cache, generating updated point features by performing a multi-head self-attention operation on the loaded point features. The method includes generating, based on the updated point features from the plurality of attention iterations, a feature representation of the 3D point cloud.

Abstract: The present disclosure discloses a method for measuring an antenna downtilt based on linear regression fitting, including: performing image instance segmentation on an inputted original antenna image using a deep learning method to obtain a segmented image; performing mask processing on the segmented image; performing mathematically linear modeling and fitting on the segmented image subjected to mask processing; and the performing mathematically linear modeling and fitting on the segmented image subjected to mask processing including: extracting pixel value coordinates of an antenna edge contour from the segmented image subjected to mask processing, and capturing a pixel value of a right-end edge of the antenna; and fitting the pixel value coordinates into a straight line by using a mathematically linear modeling and fitting method to obtain an angle of the antenna downtilt.

Abstract: The present invention relates to a compound for detecting phosgene and DCP (diethyl chlorophosphate) and a composition for detecting phosgene and DCP (diethyl chlorophosphate) comprising the said compound. More precisely, the compound for detecting phosgene and DCP of the present invention can selectively detect phosgene and DCP either in the liquid phase of gas phase by detecting the changes of fluorescence and color development very quickly within a few seconds with nM sensitivity. Therefore, the compound can also be effectively used as an ingredient for the composition and kit for the detection of one or more materials selected from the group consisting of phosgene and DCP.

Abstract: The present invention relates to a compound for detecting phosgene and DCP (diethyl chlorophosphate) and a composition for detecting phosgene and DCP (diethyl chlorophosphate) comprising the said compound. More precisely, the compound for detecting phosgene and DCP of the present invention can selectively detect phosgene and DCP either in the liquid phase of gas phase by detecting the changes of fluorescence and color development very quickly within a few seconds with nM sensitivity. Therefore, the compound can also be effectively used as an ingredient for the composition and kit for the detection of one or more materials selected from the group consisting of phosgene and DCP.

Abstract: The present invention describes fermentation methods for producing animal feeds enriched with omega-3 fatty acids from cellulosic feedstock.