Earthquake force, loading more than structural capacity, cracking, material fatigue and the other unpredicted events were undeniable in the structure life cycle in order that environmental conditions of the structure would be changed and treats health. Damage of structures such as crack, corrosion of the post tension cables from inappropriate grouting of the post tension structures and etc. can...

We introduce designs for high-Q photonic cavities in slab architectures in hyperuniform disordered solids displaying isotropic band gaps. Despite their disordered character, hyperuniform disordered structures have the ability to tightly confine the transverse electric-polarized radiation in slab configurations that are readily fabricable. The architectures are based on carefully designed local ...

We formulate a scattering-matrix-based numerical method to calculate the optical transmission properties and quasiguided eigenmodes in a two-dimensionally periodic photonic crystal slab ~PCS! of finite thickness. The square symmetry ~point group C4v) is taken for the illustration of the method, but it is quite general and works for any point group symmetry for one-dimensional ~1D! and 2D PCS’s....

This thesis is concerned with the reflection and transmission properties of layered lefthanded materials (LHM). In particular, the reflection properties of (LHM) slabs are studied for the Goos-Hiinchen (GH) lateral shift phenomenon. We demonstrate a unique GH lateral shift phenomenon, which shows that both positive and negative shifts can be achieved using the same LHM slab configuration. This ...

This study aims to investigate the mechanical characteristics of precast concrete runway cement pavement under wheel load aircraft, and promote construction pavement. In this study, based on elastic layered Boussinesq calculation theory ABAQUS finite element numerical model, distribution law stress, displacement aircraft acting different positions slab, influence added dowel bar transfer betwee...

Information percolation is a new method for analyzing stochastic spin systems through classifying and controlling the clusters of information-flow in the space-time slab. It yielded sharp mixing estimates (cutoff with an O(1)-window) for the Ising model on Z up to the critical temperature, as well as results on the effect of initial conditions on mixing. In this expository note we demonstrate t...

ionospheric slab thickness is defined as the ratio of tec to maximum electron density of the f-region (nmf2), proportional to the square of the f2-layer critical frequency (fof2). it is an important parameter in that it is linearly correlated with scale height of the ionosphere, which is related to electron density profile. it also reflects variation of the neutral temperature. therefore, ionos...