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porous

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porous
porous, a. (ˈpɔərəs) [= F. poreux (14th c. in Hatz.-Darm.), It., Sp. poroso, ad. L. type *porōs-us (in mod.L.), f. porus pore n.1: see -ous.] Full of or abounding in pores; having minute interstices through which water, air, light, etc. may pass. porous plaster, a plaster having numerous small holes... Oxford English Dictionary
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Porous carbon
Elaborate efforts have been made for studying compressive brittleness of porous carbon materials. On the contrary, less effort has been made to study the stretchability of porous carbons. wikipedia.org
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porous
porous/ˈpɔ:rəs; `pɔrəs/ adj1 allowing liquid or air to pass through, esp slowly 能使液体或气体（尤指缓慢地）穿透的; 能渗透的 He added sand to the soil to make it more porous. 他往土里搀沙子以提高渗水性能. In hot weather clothes made of a porous material like cotton are best. 热天穿棉布之类有渗透性的材料做的衣服最为适宜. Cf 参看 permeable (permeate).2 contai... 牛津英汉双解词典
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Porous glass
A further special advantage of porous glasses compared to other porous materials, is that they can be made not only as powder or granulate, but also as For commercially available porous glasses, the terms porous VYCOR-Glass (PVG) and Controlled Pore Glass (CPG) are used. wikipedia.org
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Porous silicon
Drying of porous silicon Porous silicon is systematically prone to presence of cracks when the water is evaporated. Key characteristics of porous silicon Highly controllable properties Porous silicon studies conducted in 1995 showed that the behaviour of porous silicon wikipedia.org
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porous sets: why measure zero? We call a measurable set $E\subset\mathbb R^N$ porous if every ball $B_r(x)$ contains a smaller ball $B_{cr}(y)$ for some $c\in(0,1)$ such that $$ B_{cr}(y)\subset B_r(x)\setminus E. $$ ...
I assume that $c$ is fixed (otherwise, a fat Cantor set should provide a counter-example). You can prove it quickly with the Lebesgue density theorem. Assume that $E$ has non-zero measure. By this theorem, Lebesgue-almost every point in $E$ is a density point, so there exists $x \in E$ such that : $...
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Porous set
subset of X is called σ-porous if it is a countable union of porous subsets of X. Properties Any porous set is nowhere dense. Hence, all σ-porous sets are meagre sets (or of the first category). wikipedia.org
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Why are porous medium equations posed on connected domains? Shouldn't it be done on a domain with holes (or pores)? The porous medium equation is supposed to model gas flow through porous media (i.e. some object with ...
In the case of a porous medium, although the actual physical object has a very complicated structure with small holes, you consider a model of the medium
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Porous medium equation
Gas flow The porous medium equation name originates from its use in describing the flow of an ideal gas in a homogeneous porous medium. See also Diffusion equation Porous medium References External links The Porous Medium Equation: Mathematical theory Partial differential equations wikipedia.org
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Please explain how to protect and seal porous cement based grout to prevent staining and discolouration
many grouts are porous and therefore easily absorb grease dirt and limescale spilled wine soft drinks or anything greasy on floor grouting will result
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Porex Porous Plastics | Sintered PTFE | Porous Polymer fiber ...
Porex Corporation, a business of Filtration Group, is a global leader in developing a broad portfolio of porous polymer solutions that turn into high-value functional components in our customers' end products. As part of Filtration Group, we work with our customers to make the world safer, healthier & more productive.
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Does every bounded Jordan measurable set have porous boundary? Let $A\subset \mathbb{R}^n$ be a bounded Jordan measurable set. I wonder if its boundary $\partial A$ is necessarily porous. I know that $\partial A$ ha...
On the other hand, if $c_j\to 0$, then $K$ is not porous in $\mathbb{R}$: the gaps become relatively small on smaller scales.
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Porous body and method for producing same - Google Patents
A porous body containing an oxide semiconductor is disclosed which enables to cause a more efficient photocatalytic reaction or photoelectrode reaction. The porous body has a network skeleton, and (1) the skeleton is composed of an inner portion and a surface portion; (2) the inner portion is substantially composed of a carbon material; and (3) a part or the entire of the surface portion is ...
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Synthesis and characterisation of porous and non-porous ... - ScienceDirect
The influence of polymers (Table 2) on the size and size distribution of the colloidal particles was investigated in the next step.Two different types of polymers, diblock-copolymers Lutensol (RO(CH 2 CH 2 O) x H) and triblock-copolymers Pluronic (PEO n -PPO m -PEOn), were used for steric stabilisation. The polymers could stabilise the primary particles in different ways: The hydrophilic ...
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Mechanical Activation Reinforced Porous Calcium Phosphate Cement
Lopez-Heredia et al. found that milling modified the morphology, crystallographic property, specific surface area and particle size of the initial calcium phosphate cement (CPC) powder, which ...
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