Biomedical Engineering Reference
In-Depth Information
0.06
60 V
30 V
0 V
-30 V
-60 V
0.04
0.02
ε
0.00
-0.02
-0.04
-0.06
0
500
1000
1500
2000
t
(day)
(a)
0.04
60 V
30 V
0 V
-30 V
-60 V
0.02
0.00
η
-0.02
-0.04
-0.06
0
500
1000
1500
2000
t
(day)
(b)
FIGURE 4.8
Variation of ε and η with time
t
for several electric potential differences. (a) ε versus
t;
( b) η
versus
t.
is exactly opposite to that of temperature. A decrease in the inten-
sity of the magnetic field results in a decrease of the inner and
outer surface radii of the bone by almost the same magnitude.
• Case 3: ψ
b
− ψ
a
= -2, -1, 1, and 2 A,
p
(
t
) = 1 MPa,
P
(
t
) = 1500 N, φ
b
− φ
a
= 30V
and
T
0
= 0
• Figure 4.9 shows the variation of ε and η with time
t
for various
values of magnetic potential difference. The changes of the outer
and inner surfaces of the bone due to the magnetic influence are
similar to those in Qin et al. [1].
