Meng is a professor of Tsinghua University, Beijing, China. He obtained his bachelor degree in 1983 at Southwestern Agricultural University, China, and PhD in 1991 at Nottingham University, UK. He was director of the Institute of Zoology, Chinese Academy of Sciences (CAS) (2008-2012). He is an elected fellow of CAS. He has been working mainly on maternal factors related to regulation of cell lineage, body axis determination, and germ layer formation and patterning using zebrafish and mouse models. His representative work include: 1) revealing the role of Dpr2/Dact2 in mesoderm induction by antagonizing Nodal signaling (Science, 2004); 2) discovery of the maternal factor Huluwa as the key organizer determinant in the zebrafish embryo (Science, 2018); 3) Discovery of the second polar body's role in preimplantation cell fate determination and postimplantation development of the mouse embryo (National Science Reviews, 2022); 4) demonstration of regulation of zygotic genome activation by maturity of nuclear pole complexes in the zebrafish (Cell, 2022).

Long is a professor at Chern Institute of Mathematics, Nankai University, China, where he was previously assistant lecturer, lecturer, and associate professor (1981-83, 1988-90). He has made fundamental contributions to Hamiltonian dynamics. In particular, he is acknowledged for his index iteration theory for symplectic paths and for his deep studies on periodic solution orbits of Hamiltonian systems including closed characteristics and geodesics. His awards include: Prize in Math., TWAS (2004); National Natural Scientific Awards (second class), State Council of China (2004); Yangzi River Prof., Education Ministry of China (2003); S. S. Chern Prize and L. G. Hua Prize, Chinese Math. Soc. (1998, 2017), Excellent Young Researcher Awards, Hong Kong Qiushi Foundation (1997), Prize for Scientific and Technological Progress, Ho Leung Ho Lee foundation (2012). He was an invited speaker of Inter. Congress of Math.-2002. He is a member of Chinese Academy of Sciences and Chinese Math. Society, and a fellow of American Math. Society.