This paper deals with the transcendentalist impact upon the American literature in the 19th century in an attempt to demonstrate the historic role played, and the contribution made, by literature of the times, in light of the transcendentalism, in liberating the American mind and advocating the cultural independence and social reform.

Thoreaus Walden is a transcendental literature because the crux of Walden is that of transcendentalism:nature has the capacity to produce delight,supply value and meaning.

There are mainly three kinds of legislation about properties distribution in the world, including Priority Doctrine、Equal Doctrine and Compromise Doctrine.

The author proceeds from the perspective that Wittgenstein gives impetus to his thinking from empirical subject to transcendental subject.

In order to obtain the high quality reconstruction images for low-dose X-CT,we proposed a new generalized Gibbs prior based low-dose X-CT reconstruction method.