The variations of free amino acids of excised tea leaves under anoxic stress were studied.

Research on biocatalysis in anhydrous conditions;

By the introduction of the unbiased condition,the the proposed approach overcomes the stability limitation in the estimation of the time dealy system,and it can be applied in the estimation of unobservable states of either critical stable and unstable time delay systems.

Utilizing the theories of BK spaces and multiplier spaces, this paper discuss the necessary and sufficient condition which fundamental and total biorthogonal system in Banach spaces which don t contain copy of is unconditional basis.

A Banach space X with a unconditional basis {xn} is said to have the property P if, every bounded block basis sequence of {xn} spans a complemented subspace of X.

Discusses the relations of absolute monotone bases,absolute bases and absolute rearrange bases,and discusses the relations of absolute bases and unconditional bases.

In addition, some properties of unconditional bases for Banach spaces is also given.

Using the properties of opcrator domination,a result on the unconditional basesperturbation of(D)dass of operatols is given.