# A novel index model for defrosting initiating time point of air source heat pump based on the cusp catastrophe theory

> Research article (Energy and Buildings, 2022) · cited 11× · AI/ML

**Wikidata**: [openalex:W4220930767](https://www.wikidata.org/wiki/openalex:W4220930767)  
**Source**: https://4ort.xyz/entity/a-novel-index-model-for-defrosting-initiating-time-point-of-air-source-heat-pump-based-on-the-cusp-catastrophe-theory