Building a Highly Stable Red/Near Infrared Afterglow Library with Highly Branched Structures.

Achieving organic red/near infrared (NIR) phosphorescence at high temperatures is theoretically challenging because of the severe nonradiative transitions of excited triplet states with low energy gaps. This study realizes bright and persistent red/NIR afterglow with excellent high-temperature resistance up to 413 K via highly efficient (≈100%) phosphorescence resonance energy transfer (PRET) from rationally designed branched phosphorescence luminogens as energy donors to red/NIR dyes as acceptors, coupled with optimized aggregated structures. According to systematic investigations, the abundant internal cavities formed by the highly branched luminogens in solid states ensure dye loading and space limitation, which can considerably suppress nonradiative transitions at high temperatures, promoting a persistent red/NIR afterglow with excellent stability.

Temporal Feature Fusion for 3D Detection in Monocular Video.

Previous monocular 3D detection works focus on the single frame input in both training and inference. In real-world applications, temporal and motion information naturally exists in monocular video. It is valuable for 3D detection but under-explored in monocular works.

CrossFormer++: A Versatile Vision Transformer Hinging on Cross-Scale Attention.

While features of different scales are perceptually important to visual inputs, existing vision transformers do not yet take advantage of them explicitly. To this end, we first propose a cross-scale vision transformer, CrossFormer. It introduces a cross-scale embedding layer (CEL) and a long-short distance attention (LSDA).

Finite element analysis for mechanics of guiding catheters in transfemoral intervention.

Background: During the percutaneous coronary intervention (PCI), the strong backup support of a guiding catheters is essential in reaching a target coronary lesion successfully. Nevertheless, it is difficult to explore the mechanics of a guiding catheter by analytical and experimental methods due to its complex deformation and interactions among guiding catheter, guide wire, and artery. In this study, the finite element method was used to analyze the backup support of a guiding catheter in transfemoral intervention (TFI).