1. Graduate Student, School of Architectural Engineering, Qingdao Agricultural Univ., Qingdao 266109, China.
2. Undergraduate Student, School of Architectural Engineering, Qingdao Agricultural Univ., Qingdao 266109, China.
3. Associate Professor, School of Architectural Engineering, Qingdao Agricultural Univ., Qingdao 266109, China (corresponding author).