Abstract: A method includes receiving, by an equipment identity register application in the target mobile network, an International Mobile Equipment Identity (IMEI) of a user equipment (UE) associated with the subscriber and a Subscriber Identity Module (SIM) identifier (ID) identifying an inactive SIM card inserted into the UE or an inactive electronic SIM (eSIM) profile installed at the UE, determining that the UE is attempting to attach to the target mobile network for a first time based on the IMEI and the SIM ID, adding an event to an event queue of the target mobile network, and processing the event by accessing subscriber data stored at the source mobile network to validate that the IMEI of the UE is indicated in the subscriber data stored at the source mobile network, wherein the subscriber data includes a subscriber account indicated by the IMEI of the UE.

Abstract: A method includes receiving, by an equipment identity register application in the target mobile network, an International Mobile Equipment Identity (IMEI) of a user equipment (UE) associated with the subscriber and a Subscriber Identity Module (SIM) identifier (ID) identifying an inactive SIM card inserted into the UE or an inactive electronic SIM (eSIM) profile installed at the UE, determining that the UE is attempting to attach to the target mobile network for a first time based on the IMEI and the SIM ID, adding an event to an event queue of the target mobile network, and processing the event by accessing subscriber data stored at the source mobile network to validate that the IMEI of the UE is indicated in the subscriber data stored at the source mobile network, wherein the subscriber data includes a subscriber account indicated by the IMEI of the UE.

Abstract: A method includes receiving, by an equipment identity register application in the target mobile network, an International Mobile Equipment Identity (IMEI) of a user equipment (UE) associated with the subscriber and a Subscriber Identity Module (SIM) identifier (ID) identifying an inactive SIM card inserted into the UE or an inactive electronic SIM (eSIM) profile installed at the UE, determining that the UE is attempting to attach to the target mobile network for a first time based on the IMEI and the SIM ID, adding an event to an event queue of the target mobile network, and processing the event by accessing subscriber data stored at the source mobile network to validate that the IMEI of the UE is indicated in the subscriber data stored at the source mobile network, wherein the subscriber data includes a subscriber account indicated by the IMEI of the UE.

Abstract: A method includes receiving, by an equipment identity register application in the target mobile network, an International Mobile Equipment Identity (IMEI) of a user equipment (UE) associated with the subscriber and a Subscriber Identity Module (SIM) identifier (ID) identifying an inactive SIM card inserted into the UE or an inactive electronic SIM (eSIM) profile installed at the UE, determining that the UE is attempting to attach to the target mobile network for a first time based on the IMEI and the SIM ID, adding an event to an event queue of the target mobile network, and processing the event by accessing subscriber data stored at the source mobile network to validate that the IMEI of the UE is indicated in the subscriber data stored at the source mobile network, wherein the subscriber data includes a subscriber account indicated by the IMEI of the UE.

Abstract: Methods and apparatus for cooling gas turbine rotor blades is provided. The blade includes an airfoil having an internal three pass serpentine cooling circuit having radially extending first, second, and third serpentine cooling cavities partially separated by, in axially aft succession, a first radially extending internal rib and a second radially extending internal rib. The serpentine cooling circuit includes a first inlet in flow communication with the first cavity and a second inlet in flow communication with at least one of the second and third cavities wherein the first and second inlets are formed during casting of the airfoil.

Abstract: Methods and apparatus for cooling gas turbine rotor blades is provided. The rotor blades include an airfoil having a pressure sidewall and a second suction sidewall connected together at a leading edge and a trailing edge, such that an internal three pass serpentine cooling circuit is formed therebetween. The cooling circuit includes radially extending first, second, and third serpentine cooling cavities partially separated by, in axially aft succession, a first radially extending internal rib and a second internal rib. The second rib includes a radially inner first portion and a radially outer portion wherein the radially outer portion is angled obliquely with respect to the first portion.

Abstract: Methods and apparatus for cooling gas turbine rotor blades is provided. The blade includes an airfoil having an internal three pass serpentine cooling circuit having radially extending first, second, and third serpentine cooling cavities partially separated by, in axially aft succession, a first radially extending internal rib and a second radially extending internal rib. The serpentine cooling circuit includes a first inlet in flow communication with the first cavity and a second inlet in flow communication with at least one of the second and third cavities wherein the first and second inlets are formed during casting of the airfoil.

Abstract: Methods and apparatus for cooling gas turbine rotor blades is provided. The rotor blades include an airfoil having a pressure sidewall and a second suction sidewall connected together at a leading edge and a trailing edge, such that an internal three pass serpentine cooling circuit is formed therebetween. The cooling circuit includes radially extending first, second, and third serpentine cooling cavities partially separated by, in axially aft succession, a first radially extending internal rib and a second internal rib. The second rib includes a radially inner first portion and a radially outer portion wherein the radially outer portion is angled obliquely with respect to the first portion.