Introduction to Porous Permeable

Therefore, it is important to study the creation of new porous permeable cermet materials (PPCMs) with partial or complete addition of the metal and metal oxide powders.

The purpose of this study was to investigate acid-mix corrosion of porous permeable catalysts in exhaust scrubbers.

We propose a mathematical model of production of multilayer filtering porous permeable materials (PPM) with variable porosity by the method of dry radial-isostatic pressing of ShKh15 steel powder together with a pore-forming material.

Highly porous permeable nickel materials with a hierarchical structure were consolidated by powder metallurgy methods in sintering-dissolution and sintering-evaporation processes from nickel nanopowder and micropowders of two different types of space holders – water-soluble sodium chloride NaCl and thermally unstable ammonium bicarbonate NH4HCO3, respectively.

The silica aerogel layer introduces a highly nanoporous permeable layer to reduce the intensity of the Scholte wave at the CMUT-fluid interface.

This research is helpful to improve the mechanical and percolation properties of recycled concrete bricks and promote the application of porous permeable material.

The aim of this paper is to develop a novel numerical modeling optimization technique and implement it with the boundary element method (BEM) based on convolution quadrature method for studying optimization of anisotropic viscoelastic porous permeable structures.

Into the study, 87 patients (87 eyes) were included with eyelid and conjunctiva benign tumors after cryosurgical treatment of atheroma, cyst, papilloma, nevus, granuloma, xanthelasma using an autonomous cryoapplicator of porous permeable titanium nickelide.

The authors has conducted experiments on estimation of electrokinetic parameters of porous permeable rocks using sandstone samples have been conducted in the regimes of stationary single-phase flow of an aqueous electrolyte solution and stationary two-phase flow of a water/kerosene mixture in a 50:50 ratio.

A macroporous permeable ceramics of cordierite composition with the use of mineral natural raw materials was obtained by the ceramic method.

Filtration of fine aerosols with model filters formed from composite fibers coated with porous permeable shells (layers) of a discrete structure consisting of finer parallel fibers has been considered.

Nanostructured island coatings composed of the low-temperature alumina modification were synthesized on the surface of macropores of hierarchically porous permeable monolithic nickel.

Porous permeable materials, which have open pores and channels, are in huge demand for municipal construction because of their many special properties, such as water permeability and sound absorption.

The possibilities of obtaining porous permeable cermet SHS-materials with catalytic properties are studied.

In this paper, the characteristics of the vortex shedding and noise of the blunt trailing edge with different porous permeable segment are studied by numerical simulation.

The aim of the work is to study the dependence of the noise reduction on the characteristics of porous permeable materials (PPM) obtained by vibration molding from metal powders.

The main purpose of this paper is to propose a novel efficient design optimization technique based on the operational quadrature boundary element method (OQBEM) for a simulation study on the material distribution and influence of rotation on the optimal design of rotating anisotropic viscoelastic porous permeable structures.

To enhance the performance of PVDF electret filters, a ‘multi-layering’ approach was proposed for the first time on electret nanofiber filter whereby the total charged fibers were distributed in thinner stack-up layers, with each layer being isolated by a porous permeable substrate, to reduce the electrostatic interference among fibers of adjacent layers.

The possibilities of obtaining porous permeable cermet SHS-materials with catalytic properties are studied.

Charge composition for the production of porous permeable metal-ceramic materials based on metal oxides with the addition of ground bastnaesite is proposed.

The deposition of submicron aerosol particles in model fibrous filters consisting of composite fibers coated with coaxial porous permeable shells composed of thin whiskers directed perpendicularly to the fiber surface has been considered.