Abstract: Embodiments of this application provide a cross-chain transaction method and apparatus. The cross-chain transaction method includes determining, by a first node, that a first transaction status of a first transaction is a first status, the first status indicating that consensus verification on the transaction succeeded, the first node maintaining a first blockchain and the first transaction belonging to the first blockchain. The method includes obtaining, by the first node, a second transaction status of a second transaction, a second node maintaining a second blockchain and the second transaction belonging to the second blockchain. The method includes modifying, by the first node, target data, the modifying being based on first transaction data of the first transaction when the second transaction status of the second transaction is the first status, the target data comprising data in a state machine of the first node, the target data being related to the first transaction.

Abstract: Embodiments of this application provide a cross-chain transaction method and apparatus. The cross-chain transaction method includes determining, by a first node, that a first transaction status of a first transaction is a first status, the first status indicating that consensus verification on the transaction succeeded, the first node maintaining a first blockchain and the first transaction belonging to the first blockchain. The method includes obtaining, by the first node, a second transaction status of a second transaction, a second node maintaining a second blockchain and the second transaction belonging to the second blockchain. The method includes modifying, by the first node, target data, the modifying being based on first transaction data of the first transaction when the second transaction status of the second transaction is the first status, the target data comprising data in a state machine of the first node, the target data being related to the first transaction.

Abstract: Reactor for chemical looping combustion. The reactor includes a rotary wheel having a plurality of channels extending therethrough, each channel having a wall with a porous oxygen carrier layer disposed on a bulk layer having high thermal inertia and conductivity. A stationary feeding chamber is located proximate to a bottom portion of the rotary wheel, the feeding chamber partitioned into a plurality of sectors for delivery of a selected pressurized feed gas into the channels of the rotary wheel as it rotates through the sectors. A stationary exit chamber is located proximate a top portion of the rotary wheel, the exit chamber partitioned into at least two sectors through which separate gas streams emerge. A motor is provided for rotating the rotary wheel. In a preferred embodiment, the sectors In the feeding chamber are fuel, air, fuel purging and air purging sectors.