In this paper, a new type of prefabricated concrete structure system is put forward, and bi-directional multi-ribbed floor forward in combination with system.Finite element analysis carried out on the floor, its mechanical properties are analyzed, compared test hysteresis curve, rationality correctness finite obtained.

Abstract The repeated slab approach has become a de facto standard to accurately describe surface properties of materials by density functional theory calculations with periodic boundary conditions. For exhibiting spontaneous polarization, we show that the conventional scheme passivation pseudo hydrogen is unable realize charge-neutral surface. presence net charge induces via Gauss’s law macros...

The peaked profile of perpendicular/parallel plasma rotation velocity at internal transport barrier (ITB) is modelled by a Gaussian distribution. Its stabilizing or destabilizing effects on the sheared slab 4, instability arc analyzed, in the finite and weak magnetic shear regions in detail. It is found that the peaked profile of a counter-toroidal rotation at ITB contributes to the formation a...

We present a direct, room-temperature near-field optical study of light confinement by a subwavelength defect microcavity in a photonic crystal slab containing quantum-well sources. The observations are compared with three-dimensional finite-difference time-domain calculations, and excellent agreement is found. Moreover, we use a subwavelength cavity to study the influence of a near-field probe...

We propose a high-Q photonic crystal cavity formed by introducing random disorder to the central region of an otherwise defect-free photonic crystal slab (PhC). Three-dimensional finite-difference time-domain simulations determine the frequency, quality factor, Q, and modal volume, V, of the localized modes formed by the disorder. Relatively large Purcell factors of 500–800 are calculated for t...

• A finite element model of composite cellular beams with PCHCS was developed. parametric study carried out by geometrical non-linear analyses. Symmetric and asymmetric section were considered. The predominant failure mode the web post buckling. strength not limited only beam. This paper aims to predict ultimate behavior steel–concrete using precast hollow core slabs. is developed analysis. out...

Given a set of points in a Hilbert space that can be separated from the origin. The slab support vector machine (slab SVM) is an optimization problem that aims at finding a slab (two parallel hyperplanes whose distance—the slab width—is essentially fixed) that encloses the points and is maximally separated from the origin. Extreme cases of the slab SVM include the smallest enclosing ball proble...

[1] We analyze nonlinear properties of microstructured materials with the negative refractive index, the so-called left-handed metamaterials. We demonstrate that the hysteresis-type dependence of the magnetic permeability on the field intensity allows changing the material properties from left to right handed and back. Using the finite difference time domain simulations, we study the wave refle...

Abstract Rectangular columns used in flat-slab structures run the risk of punching shear damage due to stress concentrations, especially when bending moments and vertical forces act together at connections. Using finite element analysis method, existing experiments are numerically simulated using 3D modeling software ABAQUS, describe cracking behavior concrete damaged plasticity model. The accu...