Abstract: Disclosed is a method for causal inference based on collective movement of active group, comprising obtaining leader time series and follower time series of the collective movement of the active group; obtaining fixed time lag, obtaining optimal fixed time lag based on the fixed time lag, obtaining aligned time lag series based on the leader time series and follower time series; relaxing the fixed time lag, updating the optimal fixed time lag based on the relaxed results; obtaining optimal aligned time lag series based on the aligned time lag series and the updated optimal fixed time lag; distorting the leader time series and the follower time series based on the optimal aligned time lag series; performing Grange Causality inference on the distorted leader time series and follower time series to obtain results of Granger Causality inference of the collective movement of the active group.

Abstract: The present disclosure provides a pixel structure, an OLED display screen, and an evaporation mask. The pixel structure includes a plurality of pixel unit groups arranged in an array. Each of the pixel unit groups includes a first sub-pixel, a second sub-pixel and a third sub-pixel. An edge of the first sub-pixel close to the third sub-pixel is not parallel to an edge of the first sub-pixel away from the third sub-pixel. An edge of the second sub-pixel close to the third sub-pixel is not parallel to an edge of the second sub-pixel away from the third sub-pixel. At least two adjacent first sub-pixels and/or at least two adjacent second sub-pixels of at least two adjacent pixel unit groups are formed by a same mask opening in the evaporation mask.

Abstract: The present disclosure provides a pixel structure, an OLED display screen, and an evaporation mask. The pixel structure includes a plurality of pixel unit groups arranged in an array. Each of the pixel unit groups includes a first sub-pixel, a second sub-pixel and a third sub-pixel. An edge of the first sub-pixel close to the third sub-pixel is not parallel to an edge of the first sub-pixel away from the third sub-pixel. An edge of the second sub-pixel close to the third sub-pixel is not parallel to an edge of the second sub-pixel away from the third sub-pixel. At least two adjacent first sub-pixels and/or at least two adjacent second sub-pixels of at least two adjacent pixel unit groups are formed by a same mask opening in the evaporation mask.

Abstract: The present invention generally relates to devices and methods for crystallizing a compound. In certain industries, crystallization techniques require additional filtration steps in order to obtain products of relatively high yield and/or high purity. In some embodiments, the devices and methods described herein facilitate continuous production of high yield and/or high purity products without the need for additional filtration steps. In some embodiments, the devices and methods comprise flowing a fluid comprising a compound (e.g., a crystallizable compound, a solidifiable compound) over a substrate such that the compound crystallizes and/or precipitates on the substrate. In some embodiments, the crystallized compound can be recovered (e.g., at a high purity in solution). In certain embodiments, the substrate is orientated substantially vertically (e.g., such that flow of the fluid is driven by gravity). In some cases, the substrate comprises a plurality of crystallization promoting structures.