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In this paper, the Joule-Thomson (JT) adiabatic expansion is investigated forgeneralized Ayon-Beato-Garcia (ABG) regular black hole. It has a magneticcharge which makes central region of the black hole metric to be AdS spacetimeand so become non singular. Thus we not need to use an additional cosmologicalparameter coming from ADS/CFT correspondence for production of pressurecoordinate in the black hole equation of state. Form this point of view ourwork is a new approach versus to conventional methods which are addressed inthe references of this paper. However we will see important behavior ofparameters of this modified ABG black hole on possibility of being of JTadiabatic expansion. This black hole is characterized by five parametersincluding mass $m$, magnetic charge $q$, and three other parameters related toform of used nonlinear electromagnetic interaction fields. Inversion points arein fact a particular T-P curve at constant enthalpy and it separates coolingand heating phase of the modified AdS ABG black hole.

Central AdS Generalized Ay{\'o}n-Beato-Garc{\'\i}a Black Holes and Joule-Thomson Expansion