Publications by authors named "Zehua Pan"

Article Synopsis
  • Proton-conducting solid oxide fuel cells (P-SOFCs) are more promising than oxygen-ion-conducting cells (O-SOFCs) because they operate at lower temperatures, but they face mechanical stresses at high temperatures that affect their electrical conductivities.
  • This research uses molecular dynamics modeling to analyze the mechanical and conductive behaviors of Y-doped BaZrO (BZY) electrolytes in P-SOFCs, focusing on their performance at temperatures between 673 K and 873 K.
  • It finds that Y doping and other factors decrease the Young's moduli and that proton diffusion rates change with different types of strain, ultimately affecting proton conductivity through various mechanisms like proton trapping and distribution.
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Solid oxide electrolysis cells (SOECs) hold enormous potential for efficient conversion of CO to CO at low cost and high reaction kinetics. The identification of active cathodes is highly desirable to promote the SOEC's performance. This study explores a lithium-doped perovskite La Li Sr Co Mn O (x = 0, 0.

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3D printing construction techniques are believed to have potential sustainability benefits, including improved resource efficiency, increased construction productivity, and construction of complex geometries without supporting structures. 3D printable concrete materials, when introducing industrial wastes such as fly ash, silica fume, and slag, may also bring additional sustainability benefits. These advantages need to be verified quantitatively.

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Article Synopsis
  • The study investigates how different survival models perform in cluster randomized trials, especially when there are competing risks.
  • It finds that using a sandwich variance estimator helps maintain accuracy with larger clusters, but can lead to bias in smaller samples.
  • The analysis shows that the marginal Fine and Gray model often has better power than other models, particularly when competing events are frequent, and applies these findings to a real trial on elder injury reduction.
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Alzheimer's disease is the leading cause of dementia. The long progression period in Alzheimer's disease provides a possibility for patients to get early treatment by having routine screenings. However, current clinical diagnostic imaging tools do not meet the specific requirements for screening procedures due to high cost and limited availability.

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