Abstract: Methods and systems are disclosed for delivery of notification messaging in an IP network. A multicast gateway may receive manifest files and segments of programming content for retrieval by a client device. The multicast gateway may receive segments of a notification message and modify information in the manifest file to reference the notification message content. Upon retrieval of the manifest file by a client device, the client may access the notification message content referenced in the manifest file. The multicast gateway may replace references to programming content with references to notification message content having a corresponding content type.

Abstract: A gas turbine is provided, the gas turbine engine including a turbomachine having an inlet splitter defining in part an inlet to a working gas flowpath and a fan duct splitter defining in part an inlet to a fan duct flowpath. The gas turbine engine also includes a primary fan driven by the turbomachine defining a primary fan tip radius R1, a primary fan hub radius R2, and a primary fan specific thrust rating TP; and a secondary fan downstream of the primary fan and driven by the turbomachine, the secondary fan defining a secondary fan tip radius R3, a secondary fan hub radius R4, and a secondary fan specific thrust rating TS; wherein the gas turbine engine defines an Effective Bypass Area, and wherein a ratio of R1 to R3 equals R 1 R 3 = ( E ? F ? P ) ? ( 1 - RqR Sec . - Fan 2 ) ( 1 - RqR Prim . - Fan 2 ) ? ( T P T S ) ? ( E ? B ? A ) .

Abstract: A gas turbine is provided, the gas turbine engine including a turbomachine having an inlet splitter defining in part an inlet to a working gas flowpath and a fan duct splitter defining in part an inlet to a fan duct flowpath. The gas turbine engine also includes a primary fan driven by the turbomachine defining a primary fan tip radius R1, a primary fan hub radius R2, and a primary fan specific thrust rating TP; and a secondary fan downstream of the primary fan and driven by the turbomachine, the secondary fan defining a secondary fan tip radius R3, a secondary fan hub radius R4, and a secondary fan specific thrust rating TS; wherein the gas turbine engine defines an Effective Bypass Area, and wherein a ratio of R1 to R3 equals R 1 R 3 = ( EFP ) ? ( 1 - RqR ( Sec . - Fan ) 2 ) ( 1 - RqR Prim . - Fan 2 ) ? ( T P T S ) ? ( EBA ) .

Abstract: A gas turbine is provided, the gas turbine engine including a turbomachine having an inlet splitter defining in part an inlet to a working gas flowpath and a fan duct splitter defining in part an inlet to a fan duct flowpath. The gas turbine engine also includes a primary fan driven by the turbomachine defining a primary fan tip radius R1, a primary fan hub radius R2, and a primary fan specific thrust rating TP; and a secondary fan downstream of the primary fan and driven by the turbomachine, the secondary fan defining a secondary fan tip radius R3, a secondary fan hub radius R4, and a secondary fan specific thrust rating TS; wherein the gas turbine engine defines an Effective Bypass Area, and wherein a ratio of R1 to R3 equals R 1 R 3 = ( E ? F ? P ) ? ( 1 - RqR Sec . - Fan 2 ) ( 1 - RqR Prim . - Fan 2 ) ? ( T P T S ) ? ( E ? B ? A ) .

Abstract: A gas turbine engine includes a compressor section arranged in serial flow order with a turbine section, and an electric motor assembly. The electric motor assembly has a rotor assembly that is coupled to, or integrated within, a stage of compressor rotor blades of the compressor section and a stator assembly. The stator assembly is operable with the rotor assembly to rotate the rotor assembly relative to the stator assembly and drive the stage of compressor rotor blades about the axial direction.

Abstract: A three-stream gas turbine engine with an embedded electric machine and methods of operating the same are disclosed. In one aspect, a three-stream engine includes an electric machine operatively coupled with a shaft of the engine. The three-stream engine also includes a core engine and a primary fan and a mid-fan positioned upstream of the core engine. The primary fan and the mid-fan are operatively coupled with the shaft. During operation, the three-stream engine defines a tip speed ratio being defined by a tip speed of a rotor of the electric machine to a tip speed of a mid-fan blade of the mid-fan. The tip speed ratio is defined as being equal to or greater than 0.2 and less than or equal to 1.0.

Abstract: A gas turbine engine includes a compressor section arranged in serial flow order with a turbine section, and an electric motor assembly. The electric motor assembly has a rotor assembly that is coupled to, or integrated within, a stage of compressor rotor blades of the compressor section and a stator assembly. The stator assembly is operable with the rotor assembly to rotate the rotor assembly relative to the stator assembly and drive the stage of compressor rotor blades about the axial direction.

Abstract: An apparatus and method of managing negative incidence of an airfoil are provided. The apparatus includes a row of vane pairs including a first row of main vanes extending radially inwardly from a stationary casing member and spaced circumferentially about a first axial location of the stationary casing member. The apparatus also includes a second row of auxiliary vanes extending radially inwardly from the stationary casing member and spaced circumferentially about a second axial location of the stationary casing member. The apparatus also includes a flow channel defined between a pressure side of each auxiliary vane and a suction side of an adjacent main vane proximate a leading edge of the adjacent main vane.

Abstract: The heat exchanger assembly includes a first conduit, an external surface, and a set of fins. The first conduit includes a first inlet, a first outlet, and a first internal flow path extending between the first inlet and first outlet. The first conduit is configured to channel a flow of fluid to be cooled from the first inlet to the first outlet. The external surface which includes a plurality of regions. Each region of the plurality of regions includes a respective set of fins extending from the external surface. Each set of fins of a respective region of the plurality of regions are oriented in a different direction than sets of fins of other regions of the plurality of regions.

Abstract: An apparatus and method of managing negative incidence of an airfoil are provided. The apparatus includes a row of vane pairs including a first row of main vanes extending radially inwardly from a stationary casing member and spaced circumferentially about a first axial location of the stationary casing member. The apparatus also includes a second row of auxiliary vanes extending radially inwardly from the stationary casing member and spaced circumferentially about a second axial location of the stationary casing member. The apparatus also includes a flow channel defined between a pressure side of each auxiliary vane and a suction side of an adjacent main vane proximate a leading edge of the adjacent main vane.

Abstract: The heat exchanger assembly includes a first conduit, an external surface, and a set of fins. The first conduit includes a first inlet, a first outlet, and a first internal flow path extending between the first inlet and first outlet. The first conduit is configured to channel a flow of fluid to be cooled from the first inlet to the first outlet. The external surface which includes a plurality of regions. Each region of the plurality of regions includes a respective set of fins extending from the external surface. Each set of fins of a respective region of the plurality of regions are oriented in a different direction than sets of fins of other regions of the plurality of regions.

Abstract: Methods and systems are disclosed for delivery of notification messaging in an IP network. A multicast gateway may receive manifest files and segments of programming content for retrieval by a client device. The multicast gateway may receive segments of a notification message and modify information in the manifest file to reference the notification message content. Upon retrieval of the manifest file by a client device, the client may access the notification message content referenced in the manifest file. The multicast gateway may replace references to programming content with references to notification message content having a corresponding content type.

Abstract: This application is directed to packaging a camera product. A base is attached to a holding element that is configured to physically hold a camera and includes a holding element fastener structure. The holding element fastener structure is configured to mate with a base fastener structure associated with the base, providing both a first degree of freedom of motion and a second degree of freedom of motion for the holding element relative to the base. The holding element is rotated in a first direction via the first degree of freedom until the holding element reaches a first nominal position. The holding element is rotated in a second direction via the second degree of freedom until the holding element reaches a second nominal position. The holding element is configured to lie substantially in parallel with a planar surface of the base when it is rotated along the first and second directions.

Abstract: This application is directed to packaging a camera product. A base is attached to a holding element that is configured to physically hold a camera and includes a holding element fastener structure. The holding element fastener structure is configured to mate with a base fastener structure associated with the base, providing both a first degree of freedom of motion and a second degree of freedom of motion for the holding element relative to the base. The holding element is rotated in a first direction via the first degree of freedom until the holding element reaches a first nominal position. The holding element is rotated in a second direction via the second degree of freedom until the holding element reaches a second nominal position. The holding element is configured to lie substantially in parallel with a planar surface of the base when it is rotated along the first and second directions.

Abstract: This application discloses a method of preparing an assembly. A base assembly is provided and includes a base, and a second fastener structure coupled to the base at a joint. The base assembly is then attached to a receiving element that is configured to physically receive a module and includes a first fastener structure, when the first fastener structure is fastened onto the second fastener structure until the first fastener structure reaches a tightened position. After the first fastener structure reaches the tightened position, the receiving element is rotated reversely at the first degree of freedom of motion by a first angle to orient the receiving element to a nominal position. At the nominal position, the receiving element and the module received thereby are configured to face substantially up when they are flipped down via the joint at the second degree of freedom of motion.