Publications by authors named "Dixin Shen"
Background: Associated with high-dimensional omics data there are often "meta-features" such as biological pathways and functional annotations, summary statistics from similar studies that can be informative for predicting an outcome of interest. We introduce a regularized hierarchical framework for integrating meta-features, with the goal of improving prediction and feature selection performance with time-to-event outcomes.
Methods: A hierarchical framework is deployed to incorporate meta-features.
Background: Associated with high-dimensional omics data there are often "meta-features" such as biological pathways and functional annotations, summary statistics from similar studies that can be informative for predicting an outcome of interest. We introduce a regularized hierarchical framework for integrating meta-features, with the goal of improving prediction and feature selection performance with time-to-event outcomes.
Methods: A hierarchical framework is deployed to incorporate meta-features.
A series of oxygen-deficient perovskite-supported palladium catalysts were prepared by the "solid phase crystallization" (spc) method and investigated with XRD, TPR, TPD, TEM, XPS, BET analysis and CO oxidation. It was found that Pd/perovskite catalysts synthesized by the spc method were more active for CO oxidation than the calcined LaCo0.95 Pd0.
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- The study investigated propane combustion over a Pd/LaFe(0.8)Co(0.2)O3 catalyst, focusing on how reactant composition and steam affect the process.
- Higher propane conversion was achieved under rich conditions due to a balance between oxidation and steam reforming, with water produced during oxidation enhancing conversion.
- Excess steam, however, inhibited propane conversion, highlighting the importance of optimal steam levels in the reaction.