The principle of how to store XML documents regardless of small or large scale into relational storage based on segmented bit vector coding scheme is discussed,and the corresponding operation and performance aralysis are also given.

It is not only the relationship between saving and deposit,but also the relationship between credit and loan,showing a communication relation on the basis of equal value for the banks and enterprises,also showing a totally "mutual glory or mutual failure" relation,and a share equity cooperation relation,etc.

Using a morphological hit-miss transformation, an improved method for increasing the addressing accuracy of optical holographic associative memory is proposed and the experimental demonstration is given.