Composites of concentric cylinders can fail by microcracks that span the thickness and length of one cylinder but arrest at the boundary to adjacent cylinders. This failure mode was analyzed by developing a new polar shear-lag analysis for stresses in a cross section of a concentric-cylinder composite. The analysis can accurately calculate stresses in each cylinder in the presence of microcrack...

The symmetric core of the nuclear pore complex can be considered schematically as a series of concentric cylinders. A peripheral cylinder coating the pore membrane contains the previously characterized, elongated heptamer that harbors Sec13-Nup145C in its middle section. Strikingly, Sec13-Nup145C crystallizes as a hetero-octamer in two space groups. Oligomerization of Sec13-Nup145C was confirme...

The main purpose of this work is to solve the problem electromagnetic scattering from a chiral cylinder arbitrary cross-section above an infinite perfect electric conducting (PEC) plane. Using image theory, reduced two cylinders in free-space. Surface equivalence principle used obtain three different equivalent problems for two-cylinder problem. Then, method moments these numerically. It known ...

Three copper cylinders of diameter 1/4”, 3/8” and1/2” were heated and then immersed in an air stream flowing through a cylindrical pipe. The temperature change of the cylinders with respect to time was measured at different air flow rates. With this data, the Nusselt, Reynolds and Prandtl numbers were calculated and correlated. This correlation was compared to ones established by Sherwood-Pigfo...

Recent developments in the nanofabrication technologies brought new interest into the study of mesoscopic superconductors [1, 2]. Consequently theorists went back to discuss many problems that could have been solved long ago if the motivation existed before. The con nement of vortices in samples with sizes of the order of the coherence length produce interesting e ects such as the onset of gian...

We consider an inverse problem for the scattering of an obliquely incident electromagnetic wave by an impedance cylinder. In previous work, we have shown that the direct scattering problem is governed by a pair of Helmholtz equations subject to coupled oblique boundary conditions, where the wave number depends on the frequency and the incident angle with respect to the axis of the cylinder. In ...