Jie Ying
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Efficient nitrogen elimination and microbial community characteristics in a sulfur-based autotrophic bioreactor at high nitrate loading
ABSTRACT This study systematically evaluated the nitrogen removal performance and microbial community characteristics of the sulfur-based autotrophic denitrification (SAD) process under various influent loads (15–140 mg N/L). After 22 days acclimation at 15 mg N/L, the system achieved >90% stable NO3−-N removal. Notably, the system demonstrated exceptional stability at a high load of 140 mg N/L, with an average total nitrogen removal rate of 98% (peaking at 99%).
Computer Science > Robotics
Estimating deformable object states remains a fundamental challenge in robotics and simulation. We propose a novel factor graph-based framework for probabilistic mesh state estimation of deformable objects. The method directly updates a tetrahedral mesh, a rich and physically-grounded representation of an environment, by combining physics priors, noisy sensor measurements, and temporal smoothness constraints within a unified probabilistic formulation.
Computer Science > Computer Vision and Pattern Recognition
Vision foundation models (VFMs) are valuable in data-scarce domains such as surgery, where a single pretrained backbone can provide rich representations for many downstream tasks. Yet the dominant self-supervised pretraining paradigm uses only RGB images, leaving readily available complementary signals, such as depth maps, unused.
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