Linear as well as nonlinear optical responses of slab waveguides with one-dimensional periodic structures at the scale of optical wavelengths are reviewed. By inserting an inorganic-organic hybrid semiconductor into the periodic structure, we demonstrated strong modification of optical response. The strong coupling (polariton) effect, directional photoluminescence, exciton super-radiance and tr...

A new model is presented for a step-index fiber in the form of an equivalent slab guiding structure. This model simplifies the analysis of fiber directional couplers and coupler half-blocks with dielectric and metallic superstrates. Simple empirical formulas to obtain the model parameters are also given. The use of this model is illustrated with some numerical examples.

in this paper, evaluation of torsional stiffness in beam and slab bridge deck elements is presented. a beam and slab bridge decks structurally behave as a grillage. a grillage has an efficient transverse load distribution due to transverse asymmetric load. in the case of bridge deck without transverse beams in the span, transverse load distribution depends on the torsional stiffness of longitud...

Let P be a point set of n points in R. Every point has a label/color (say black or white), but we do not know the labels. In particular, let B and W be the set of black and white points in P . Furthermore, let ∆ = diam(P ), and assume that there exist two parallel hyperplanes h, h′ in distance γ from each other, such that the slab between h and h′ does not contain an point of P , and the points...

The Laramide orogeny is the Late Cretaceous to Palaeocene (80^55 Ma) orogenic event that gave rise to the Rocky Mountain fold and thrust belt in Canada, the Laramide block uplifts in the USA, and the Sierra Madre Oriental fold and thrust belt in Mexico. The leading model for driving Laramide orogenesis in the USA is flat-slab subduction, whereby stress coupling of a subhorizontal oceanic slab t...

Figure 3. Coronal (top) and axial (bottom) views from a 3D acquisiton slightly above the heart. Images have 2x2x3 mm resolution. The coronal image shows the 4cm, TB=10 slab profile in vivo. The contrast is consistent across the slab, indicating a flat slab profile. The black level is 0 for these images. Introduction: Balanced steady-state free precession (SSFP) imaging (TrueFISP, FIESTA, balanc...

This study presents a detailed comparative analysis of flat slab structures with and without shear walls to evaluate their seismic performance, structural behavior, overall efficiency. Flat are widely used in modern construction due simplified formwork enhanced architectural flexibility. However, performance has been subject concern, especially regions prone activity. research involved numerica...

Abstract This report examines the behavior of a reinforced concrete slab, part an experimental structure, under loads derived from casting formwork system subsequent plate and laid mix in slab above it. The deflections individual stages were measured with help dial gauges. full strength deformation characteristics concretes used construction researched. at all loading was studied, including eac...