美国哥伦比亚大学生物工程研究所所长,土木工程和工程力学系教授Richard Skalak,应北京大学和上海交通大学的邀请,于1982年2月先后访问了北京和上海。在北京期间,于2月13日在北京大学作了“血液流动力学”的报告,详述了他和钱煦(S.Chien)教授近几年来合作研究的细胞可变形性的研究成果,用有限元逐次逼近的方法处理了红血细胞在毛细血管中(管径甚至可以比红血细胞直径还要小),由正常的双凹圆盘形逐渐变为降落伞形或 Richard Skalak, director of the Institute of Bioengineering at the University of Columbia, professor of civil engineering and engineering mechanics, visited Beijing and Shanghai in February 1982 at the invitation of Peking University and Shanghai Jiaotong University. During his stay in Beijing, he delivered a report titled “Hemodynamics” at Peking University on February 13, detailing the results of a study on the deformability of cells he and Professor S. Chien collaborated on in recent years. Finite element successive approximation method to deal with the red blood cells in the capillaries (diameter even smaller than the diameter of red blood cells), from the normal double-disc shape gradually into a parachute or