Entropy Generation in Unsteady Flow of a Ternary Nanofluid With Chemical Reaction, Thermal Radiation, Magnetic Field, and Darcy Effects in a Porous Microchannel Subject to Convective Cooling and Uniform Suction/Injection. - Khan, Idrees; Ling, Zhi; Chinyoka, Tiri; Sohaib, Muhammad; Ibrahim, Ahmed Ahmed (ZAMM -- Journal of Applied Mathematics & Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2026)