Based on chemical-looping gasification, hydrogen production from biomass catalytic gasification in interconnected fluidized beds is presented and the gasification reaction mechanism is discussed.

Using interconnected fluidized beds technology to separate gasification and combustion of biomass, the heat is transferred from the combustor to the gasifier by ash, and heat equilibrium of the system has been carried out in this way.

High quality syngas production in interconnected fluidized beds of biomass gasification was investigated experimentally.

Hydrodynamics of interconnected fluidized beds for chemical-looping combustion;

Lock and serializability are two important methods for concurrency control.

All the transaction-oriented policies of relaxing serializability such as epsilon serializability and similarity serializability and quasi consistent serializability can result in bounded inconsistency of data.

On the basis of this,an Xpath-based locking protocol is put forward and the schedule within the locking protocol mentioned above is proved to be serializability.

Based on the study of ZS and LW thinning algorithms,combine the serial thinning with the parallel thinning methods and bring some template to improve the thinning algorithm and make it successfully solve the problems such as needless trees and useless pixel.