Xin Zhao

Generalized Weierstrass Integrability of a Class of Second-order Nonlinear Differential Equations

Xin Zhao & Yanxia Hu · Asian Research Journal of Mathematics · 2021

The generalized Weierstrass integrability of a class of second-order nonlinear differential equations is considered. The conditions of existence and the corresponding expressions of generalized Weierstrass inverse integrating factors of the second-order nonlinear differential equ...

Open access Research Article 10.9734/arjom/2021/v17i330286

Research Progress on EPC General Contracting Mode in China

Li Yang, Xin Zhao, Feng Liang, Song Hu & Zhiyuan Tian · Journal of Engineering Research and Reports · 2026

Engineering–procurement–construction (EPC) general contracting has become an important instrument in China’s effort to reorganise project delivery around integrated responsibility for design, procurement and construction. Its expansion has been encouraged by national rules that c...

Open access Research Article 10.9734/jerr/2026/v28i81975