Physics under the fold

Fold removal in CT Colonography: A Physics-Based Method

Computed Tomographic Colonography (CTC) produces 2-d and 3-d images of the colon using computed tomography (CT). The main goal of CTC is to detect small lumps on the colon surface called polyps, which are known to be precursors to colon cancer. Radiologists are therefore interested in exploring the inner surface of the colon to detect polyps. Polyps may be detected by visual inspection of colon...

The Soul of Man Under Physics

HAT IS it? A sense of unease, perhaps, some V A persistent feeling, as the century slips into the darkness, that the larger structures of scientific thought and sentiment are disembodied, disorderly somehow. The feeling is familiar, like the taste of tea. A long moment in our collective experience is coming to an end. The British novelist (and physicist) C.P. Snow argued in the golden 1950's th...

Self-similar Fold Evolution under Prescribed End-shortening

The evolution of single-layer folds under prescribed end-shortening conditions displays folds of varying wavelength. We investigate a simple model of this kind and characterize the long-term behaviour of fold prooles. In particular we determine the evolution of the axial load and the variation of the wavelength, and we show that the fold prooles are highly self-similar. 1. Introduction The vari...

Under the Sun Light. From Physics to Image Processing

n-fold Commutative Hyper K-ideals

 In this paper, we aresupposed to introduce the definitions of n-fold commutative, andimplicative hyper K-ideals. These definitions are thegeneralizations of the definitions of commutative, andimplicative hyper K-ideals, respectively, which have been definedin [12]. Then we obtain some related results. In particular wedetermine the relationships between n-fold implicative hyperK-ideal and n-fol...