In order to mitigate the potential issue of abrupt water inrush in coal mining operations, elastic-plastic mechanics theory was employed simplify barrier floor strata into a thin rectangular plate. Subsequently, fluid-solid coupling damage model designed through utilization COMSOL Multiphysics software investigate coupled seepage and effects rock mass an equivalent continuous medium. The result...

An analytical model for creating flat Chladni figures is presented. The equation of a standing wave in the simplest boundary conditions and Fourier transform are used. Top view images shown at different frequencies. practical significance results obtained further development field based on waves physical nature has been determined.

In this paper, we have investigated the effect of a single Grain Boundary (GB) on the performance of decananometer-scale Thin Film Transistors (TFTs) by using the calibrated energy balance transport model and a continuous trap state distribution at the GB. We have found that the GB potential barrier suppresses the subthreshold slope and leakage current in devices, where the DIBL effect and punc...

The paper considers the visco-elastic response of ice cover in a channel under an external load moving with constant speed along center line. has rectangular cross-section finite depth and width. fluid is inviscid incompressible its motion potential. covered by thin sheet frozen to walls. thickness varies linearly symmetrically across channel, being lowest at highest Ice deflections strains are...

This paper discusses the properties of flexural waves governed by the biharmonic operator, and propagating in a thin plate pinned at doubly periodic sets of points. The emphases are on the design of dispersion surfaces having the Dirac cone topology, and on the related topic of trapped modes in plates for a finite set (cluster) of pinned points. The Dirac cone topologies we exhibit have at leas...

The use of the generalized Snell's law opens wide possibilities for the manipulation of transmitted and reflected wavefronts. However, known structures designed to shape reflection wavefronts suffer from significant parasitic reflections in undesired directions. We explore the limitations of the existing solutions for the design of passive planar reflectors and demonstrate that strongly nonloca...

In this paper, deformations of a laminated composite plate due to mechanical loads are presented. Third order shear deformation theory of plates, which is categorized in equivalent single layer theories, is used to derive linear dynamic equations of a rectangular multi-layered composite plate. Moreover, derivation of equations for FEM and numerical solutions for displacements and stress distrib...

In today’s world the demand for freshwater, to meet needs of human activities is growing exponentially. As a result, manufacturers are continuing make progress in design and production efficient desalination cooling units optimize reduce overall cost production. this work, we study numerical evaporation thin liquid film dripping by gravity with constant feed rates closed rectangular cavity form...

Bayesian MAP (maximum a posteriori) methods for SPECT reconstruction can both stabilize reconstructions and lead to better bias and variance relative to ML methods. In previous work [1], a nonquadratic prior (the weak plate) that imposed piecewise smoothness on the first derivative of the solution led to much improved bias/variance behavior relative to results obtained using a more conventional...