Abstract: A pressurized gas containment liner includes a first part comprising a first shell with a first peripheral edge, and a second part comprising a second shell with a second peripheral edge. The first peripheral edge is rigidly connected to the second peripheral edge, and the first shell and the second shell delimit between them an interior volume. The first part comprises at least one pillar that passes through the interior volume, is formed integrally with the first shell, and is elongated between a proximal end, connected to the first shell, and a distal end, rigidly connected to the second part. A transverse section of the pillar decreases from the proximal end to the distal end.

Abstract: A pressurized gas containment liner includes a first part comprising a first shell, a second part comprising a second shell, and at least one intermediate part, arranged between the first part and the second part, in an assembly direction. The intermediate part is rigidly connected to the first and second parts. The first part, the second part, and the at least one intermediate part together delimit an interior volume. The or at least one of the intermediate parts comprises an intermediate shell and at least one pillar elongated in an elongation direction and connecting two opposite portions of the intermediate shell, and passing through the interior volume perpendicular to the assembly direction. The pillar and the intermediate shell are integral.

Abstract: A pressurized gas containment liner includes a first part comprising a first shell with a first peripheral edge, and a second part comprising a second shell with a second peripheral edge. A strip is superimposed on the first peripheral edge and on the second peripheral edge. The strip rigidly connects the first part and the second part to each other, and the first part, the second part, and the strip delimit an interior volume between them. The pressurized gas containment liner further includes at least one pillar passing through the interior volume and connecting the first and the second shells.

Abstract: A liquid rocket engine assembly comprising a thrust chamber, a nozzle, and a joint structure. The joint structure attaches the thrust chamber and the nozzle and comprises at least one seal element and an attachment ring interposed between the thrust chamber and the nozzle. Fasteners extend between the nozzle and the thrust chamber through the at least one seal element and the attachment ring. Materials of the thrust chamber and of the nozzle comprise different coefficients of thermal expansion. A method of forming a liquid rocket engine assembly is also disclosed.

Abstract: In some examples, methods and systems may process one or more payment transactions between a merchant and a remote customer by exchanging at least one payment proxy having a syntax including a monetary currency indicator preceding an alphanumeric character, corresponding to the merchant or the customer over a mesh network. A customer device detects a neighboring beacon and sends a route request through a communication channel, the route request includes at least an address of a merchant beacon device. The neighboring beacon determines a routing path to connect the customer device and the merchant beacon device by hopping over one or more neighboring beacon devices. Once the communication channel is established, the customer device can send and receive the payment proxy to and from the merchant beacon device. The customer device is configured to generate a message identifying the payment proxy as a method of payment for the payment transaction.

Abstract: A payment object reader can comprise a near-field communication (NFC) system, a Bluetooth system, one or more processors, and one or more non-transitory computer-readable media. The payment object reader can receive a command, from a point-of-sale (POS) application and via the Bluetooth system, to read a transaction instrument using the NFC system, wherein the POS application is executing on a POS device of a merchant The payment object reader can read payment information from the transaction instrument using the NFC system and send the payment information to the POS application via the Bluetooth system. Then the payment object reader can receive, from the POS application via the Bluetooth system, a transaction proxy corresponding to a merchant financial account of the merchant. The payment object reader then can send, via the NFC system, the transaction proxy to the transaction instrument.

Abstract: In some examples, methods and systems may process one or more payment transactions between a merchant and a remote customer by exchanging at least one payment proxy having a syntax including a monetary currency indicator preceding an alphanumeric character, corresponding to the merchant or the customer over a mesh network. A customer device detects a neighboring beacon and sends a route request through a communication channel, the route request includes at least an address of a merchant beacon device. The neighboring beacon determines a routing path to connect the customer device and the merchant beacon device by hopping over one or more neighboring beacon devices. Once the communication channel is established, the customer device can send and receive the payment proxy to and from the merchant beacon device. The customer device is configured to generate a message identifying the payment proxy as a method of payment for the payment transaction.

Abstract: A liquid rocket engine assembly comprising a thrust chamber, a nozzle, and a joint structure. The joint structure attaches the thrust chamber and the nozzle and comprises at least one seal element and an attachment ring interposed between the thrust chamber and the nozzle. Fasteners extend between the nozzle and the thrust chamber through the at least one seal element and the attachment ring. Materials of the thrust chamber and of the nozzle comprise different coefficients of thermal expansion. A method of forming a liquid rocket engine assembly is also disclosed.

Abstract: A liquid rocket engine assembly comprising a thrust chamber, a nozzle, and a joint structure. The joint structure attaches the thrust chamber and the nozzle and comprises at least one seal element and an attachment ring interposed between the thrust chamber and the nozzle. Fasteners extend between the nozzle and the thrust chamber through the at least one seal element and the attachment ring. Materials of the thrust chamber and of the nozzle comprise different coefficients of thermal expansion. A method of forming a liquid rocket engine assembly is also disclosed.

Abstract: In some examples, methods and systems may process one or more payment transactions between a merchant and a remote customer by exchanging at least one payment proxy having a syntax including a monetary currency indicator preceding an alphanumeric character, corresponding to the merchant or the customer over a mesh network. A customer device detects a neighboring beacon and sends a route request through a communication channel, the route request includes at least an address of a merchant beacon device. The neighboring beacon determines a routing path to connect the customer device and the merchant beacon device by hopping over one or more neighboring beacon devices. Once the communication channel is established, the customer device can send and receive the payment proxy to and from the merchant beacon device. The customer device is configured to generate a message identifying the payment proxy as a method of payment for the payment transaction.

Abstract: Techniques for enabling transactions via a payment processing service for a merchant that is currently located outside of a particular region that the merchant utilizes the payment processing service for processing card-present transactions is described. A server associated with the payment processing service may receive, from a point-of-sale (POS) system, first payment data to satisfy a cost of a transaction between a customer and the merchant and may determine that the POS system is currently located outside of a region where the merchant utilizes the payment processing service to perform card-present transactions. The server may extract a portion of the first payment data, the portion of the first payment data corresponding to information required for a card-not-present transaction and may facilitate, based at least in part on the portion of the first payment data, a card-not-present transaction, instead of a card-present transaction, to authorize the cost of the transaction.

Abstract: Techniques for enabling transactions via a payment processing service for a merchant that is currently located outside of a particular region that the merchant utilizes the payment processing service for processing card-present transactions is described. A server associated with the payment processing service may receive, from a point-of-sale (POS) system, first payment data to satisfy a cost of a transaction between a customer and the merchant and may determine that the POS system is currently located outside of a region where the merchant utilizes the payment processing service to perform card-present transactions. The server may extract a portion of the first payment data, the portion of the first payment data corresponding to information required for a card-not-present transaction and may facilitate, based at least in part on the portion of the first payment data, a card-not-present transaction, instead of a card-present transaction, to authorize the cost of the transaction.

Abstract: A liquid rocket engine assembly comprising a thrust chamber, a nozzle, and a joint structure. The joint structure attaches the thrust chamber and the nozzle and comprises at least one seal element and an attachment ring interposed between the thrust chamber and the nozzle. Fasteners extend between the nozzle and the thrust chamber through the at least one seal element and the attachment ring. Materials of the thrust chamber and of the nozzle comprise different coefficients of thermal expansion. A method of forming a liquid rocket engine assembly is also disclosed.