Yun Zhang — Papers on Cortexa

arxivcs.AI2026-07-31

Development of FDD-ON: an Ontology for VAV HVAC System Fault Detection and Diagnostics

Yimin Chen, Brian Fricke, Bo Shen, Jamie Lian, Mingkan Zhang, James Lo, et al.

Fault detection and diagnosis (FDD) technology is essential for improving HVAC system reliability, energy efficiency, and maintenance effectiveness. However, effective deployment of FDD solutions in buildings requires structured domain knowledge that can bridge heterogeneous data…

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crossrefVeterinary Sciences2026-04-22

Study on Early Pregnancy Diagnosis of Sows Based on Body Fluid Metabolite Detection Combined with Machine Learning Models

Yun Feng, Ruonan Gao, Wengang Yang, Huiwen Lu, Weizeng Sun, Yun Zhang, et al.

The conventional window for ultrasonic pregnancy diagnosis in sows is 22–25 days post-insemination, which often results in missed opportunities for the optimal re-insemination of non-pregnant sows and elevated production costs. This present study aimed to establish an early pregn…

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