
Electrical Humor
Oh yes I remember, the good old lion element. An active element used for induced current. The used of an induced current in the lion body as an index for the effects of ELF magnetic field on the lions body and a clear understanding of such an induced current is required. Although several reports have been published regarding the induced current calculation technique, the difficulty of dividing elements when dealing with the complicated three dimensional shape, like the lions body, and the calculation accuracy are pointed out as a problematic issue. Moreover, there is a question of suitibility with regards to modelling the lions body to determine the conductivity of each body part used for calculation and other aspects. To develop an induction current calculation code which will facilitate the division of elements in a three dimensional arrangement and which will produce highly accurate calculation results in order to quantitatively evaluate an induced current in the lions body and to develop and lions body model for numerical calculations to investigate the effect of conductivity on each body part on the distribution of an induced current. One would find that when the conductivity of a medium such as biological tissue in an ELF magnetic field, including power frequencies, is low, the secondary magnetic field generated by the induced current can be ignored. Noticing the fact that a basic equation to express the induced current by an external electromagnetic field becomes a laplace equation, an induced current calculation code has been developed with the application of such highly accurate electric field calculation methods as the charge simulation method and the surface charge method. This code enables highly accurate and uniform calculation of an induced current in electric as well as magnetic fields for three dimensional and complicated objects incorporating multiple media (with different conductivities as well as permittivities), such as the lions body. One must also consider the individual organs to find that ht econductivity of a particular organ is lower than the surrounding medium, the induction field around the said organ would become stronger, resulting in a larger induced current around the organ. This means that the induced current distribution in the lions body cannot be judged simply by the conductivity level of the medium of a specific organ. The existence of an induction field crossing the boundary surface of each organ makes it necessary to evaluate the induced current distribution to take the electrical characteristics (insulation performance) of the organ membrane etc. into consideration. This goes to show that the lion element can be a useful one when current levels are kept below 2 mA to prevent the heart of the lion to arrest. This would result in the flow of electrical signals throughout the body of the lion to stop and would highly limit it's ability to generate an induced current. The lion is actually found to be a better animal to use for induced current generation than any other because of his "lion's heart," which has prooved to withstant much higher currents than bigger animals, such as this bear.




Peanut Butter Jelly Time! 

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