私立中原大學八十九學年度博士班招生考試命題紙

所組別：醫學工程學系 科目：生物力學與材料 考試時間：6月14日第1節

1. Describe the differences in motions of the three joints: human hip joint, knee joint and ankle joint. (10%)
2. Briefly describe the following terms. (20%)
a)kinematics
b)kinetics
c)Poisson's ratio
d)Newton's 2nd law of motion
e)Wolff's law (bone remodeling law)
3. A human femur subjected to a vertical load of 100lb is shown
(a) determine the distribution of stress across the section BB assuming that the circular section is solid bone
(b) same as (a), except that this time assume that the inner half of the bone radius consists of “spongy” bone. Assume that the “spongy” bone does not carry any stress.
(c) what is the percentage increase in the maximum stress of distribution (b) compared with the maximum stress of distribution (a).
(Hint: the I for circular tube is p (D4-d4)/64, consider both the bending stress and the axial normal stress) (20%)

1. 請舉一至二例說明人造軟組織高分子器官 （如：人工血管、人造皮膚、人工心肺、•••或藥物釋放等） 常用材料之物理、化學、機械性質•••等並將其優、缺點及改良方法與目的具體說明之。（２５％）
2. 請舉一至二例說明人造硬組織器官（如：人工關節、人工牙齒•••等） 常用材料之物理、化學、機械性質•••等並將其優、缺點及改良方法與目的具體說明之。 （２５％）

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