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Table 1 First five zero points of J0(x), J1(x), and J2(x)

From: Oscillation Modes of Weld Pool in Stationary GTA Welding Using Structure Laser Method

m 1 2 3 4 5
\(\mu_{{{0}m}}\) 2.40483 5.52008 8.65373 11.7915 14.9309
\(\mu_{{{1}m}}\) 3.83171 7.01559 10.1735 13.3237 16.4706
\(\mu_{{{2}m}}\) 5.13562 8.41724 11.6198 14.7960 18.9801