Modeling the beating degree of wheat straw biochemical mechanical pulp using multifactorial equations - Zihuan Liu; Xiaoli Liang; Xiaoyun Zhang; Ling Li; Liang Yin; Zhenhua Hou; Xiaojie Ma; Yanpeng Xu; Piwu Li; Kaiquan Liu; Ruiming Wang (PLoS ONE, 2026)