21.Duan Y., The Essence of Knowledge is Simulation and Logical Construct. Lecture Notes in Arts, Literature and Linguistics. Volume:18. February 21-23,2022, pp.169-178.

22.Duan Y., "The Dialectical Unity of Subjective and Objective Worlds: Understanding their Interdependent Relationship through Daily Activities". Lecture Notes in Economics, Management and Social Science, Part A, Vol.57 (February 27-28, 2023), pp.57-62.

23.Duan Y., "Neo-Essentialism: Regulation and Commonality in Subjective World".Lecture Notes in Economics, Management and Social Sciences, Vol.60 (July 15-16,2023), pp.385-392.

24.Duan Y., "Philosophy Has to Provide a Fake World View". WOP in Education, Social Sciences and Psycholopy, Volume:93 (November 29-30, 2022), pp.175-179.

25.Duan Y., "THE ESSENCE OF FORMAL LOGIC: SIMPLE AND USEFUL RULES THAT ARE NOT OBJECTIVELY TRUE". WOP in Education, Social Sciences and Psycholopy, Volume:107 (March 30-31, 2024), pp.116-123.

26.Duan Y.,"Analysis of Professor Wu Kun's Philosophy of Information". Transactions on Economics, Business and Management Research, Volume 8,2024, pp.435-439.