A process for preparing beads of various compositions has been developed. Other embodiments herein are generally directed to coupling elements having removable extended tabs for use in orthopedic fixation devices. A first cable, such as a power cable, also extends between the first limb and the second limb. Moreover, the heat dissipating structure enlarges area of heat circulation, thereby augmenting speed of heat diffusion, improving heat dissipation effect on heat emitting from computer electronic components, and enhancing functionality of the fan.