How To Use Porosity In A Sentence
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The tip has a microporosity of less than or equal to 0.22 microns.
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The space between these anterior and posterior openings makes a large chamber, divided by a vertical wall into halves, each of which is still further separated into three irregular cavities by three bones, called spongy, from the porosity and delicacy of their texture.
Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics
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The origin of the difference between the two species may be related to the fine structure of the roots, namely the porosity of Casparian bands.
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The relationship between bulk modulus, macro-compressibility and porosity is also given.
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Compaction in sands proceeds by eliminating porosity by mechanical and chemical processes, and then by pressure dissolution.
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The quantitative relation between dynamic nominal fragment size and porosity is developed by employing the energy description of dynamic fragmentation.
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Also, with lower porosity the speed and erosiveness of the wind as it passes around the ends of windbreaks will be increased, and these areas should be protected, for example, with perennial crops or stone mulch.
5. How plants live and grow
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The minimal value of porosity is around 5 % though throat radius method and porosity - water saturation method.
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Porosity is defined as the ratio of the volume of pores, or void space, in a porous material to the bulk volume of the material, which includes both solids and voids.
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In the high - porosity laminae, individual silicified microbes remain clearly visible and their general morphology and size readily apparent.
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Typically, firebrick has a more yellowish colour and is more ceramic in appearance with little or no porosity to the brick.
Care and maintenance of the fireplace
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The lab's micro-photographs indicate the writing was done stroke by stroke to keep the ink from pooling due to skin porosity.
THE HUNDREDTH MAN
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An amendent should decrease bulk density, increase toltal porosity , and incr ease water and air content.
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We suggest that this process is the dominant mechanism of deep slab hydration, although it may be locally aided by the enhancement in porosity due to prefailure dilatancy
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Moreover, M. alternifolia developed aerenchyma and adventitious roots during inundation, with root porosity in the flooded seedlings much higher than that of the control.
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Hot isostatic pressing of aluminum castings reduces porosity and can thus decrease the scatter in mechanical properties.
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So that, it is necessary to adopt very sinterable UO2 powder and suitable pelleting and sintering conditions to minimize open porosity and small porosity.
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So that, it is necessary to adopt very sinterable UO2 powder and suitable pelleting and sintering conditions to minimize open porosity and small porosity.
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To eventually translocate, cells must navigate the meshwork, the porosity of which can be smaller than the largest cell dimensions.
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Comparison of the thickness of lithostratigraphic units between sites appeared problematic because of the apparent diachronism of the lithostratigraphic boundaries and of the lateral changes of porosity.
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The lightest portion, whose bubbles are of the greatest tenuity, which is white on account of its finer porosity, rises to the surface, where the caudal filaments sweep it up and gather it into the snowy ribbon which runs along the summit of the nest.
Social Life in the Insect World
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The results indicate that the casting defects are mainly shrinkage porosity and cracks caused by solidification shrink, which mainly presents in the hot spot between the spoke and the rim.
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Higher porosity and pore size result in greater bone ingrowth but diminish mechanical properties.
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The higher the modified microporosity, the higher the loss in the crystallisation test; this indicates that it is the proportion of micropores present and not their absolute volume which is the controlling factor.
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The origination and location of shrinkage porosity(hole)in the rudder horn was described by simulating the filling process of large pelagic cast-steel rudder horn using a CAE software.
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Zero porosity ripstop, used to repair holes in high-performance ram air sport parachuting canopies, isn't Gore-Tex, but it'll certainly get you through the season.
I just got a US Military ECWS sleeping bag system and i know for sure it saved my life this past weekend in the snow, it wasn't
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Shrinkage cavity and shrinkage porosity were eliminated by adding iron chill on the valve body which make progressive solidification, together with atmospheric feeder which feed the casting.
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Porosity : The condition of hair that makes it absorb moisture easily.
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The factors that affect the porosity in transversally cast ingot are related, porosity is very detrimental to the mechanical properties and surface quality of sheet.
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However, the overall mean coordination number is essentially a constant and independent of porosity or volume fraction for the binary packing under gravity.
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Other authors have disputed that there is a systematic correlation between porosity and permeability in dolostones, or that these two petrophysical parameters are enhanced in dolostones relative to limestones.
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In numerical calculations, the effects of rainfall pattern, effective porosity, coefficient of permeability and shape of slope layer to the decline of subsurface flow are examined.
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Soil bulk density, non-capillary porosity decreased in large degree, and capillary porosity, capillary moisture capacity increased in different degree of different rehabilitated forest.
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When welding copper alloys containing these elements, porosity can be minimized by higher weld speeds and a filler metal low in these elements.
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Bourgeon, location distribution and growth of porosity anodic oxide film affected by the formed air bubble were brought forward.
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The proprietary process can be precisely controlled to impart varying degrees of microporosity.
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It soon became apparent, however, that the biocompatible material with strength, density, and porosity properties similar to natural bone may have other applications.
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There is a certain functional relation between seismic interval velocity and formation porosity asas residual porosity.
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Changes in the petrophysical characteristics therefore are not caused by compositional variations, but are believed to result from internal matrix strain (density increase, porosity reduction).
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This alteration can cause significant changes in porosity and permeability.
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In this paper we briefly analyze the mechanism of engendering pores in powder metal material(PM), and study the influence of welding speed and active gas for welding porosity defect.
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This was closed with a stopper composed of several layers of cork with the grain running crossways to reduce porosity.
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During the activation process, they used steam to bombard the charred material to induce porosity.
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Porosity and elasticity of the support — the composition of the clay, glass, or metal used in enameling — was an important consideration in choosing the coloring materials for ceramic bodies, as they too reacted to temperature changes during firing.
The Creation of Color in Eighteenth-Century Europe
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Soil aeration, porosity and water-holding capacity have been affected due to the reduced organic matter.
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Additions of oxygen, carbon dioxide, or nitrogen to argon gas will usually cause porosity or erosion of the electrode.
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Initial porosity in well-sorted sand also is dependent on grain angularity, the porosity increasing with increase in angularity.
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In this paper we briefly analyze the mechanism of engendering pores in powder metal material(PM), and study the influence of welding speed and active gas for welding porosity defect.
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Soil structure, or the size and arrangement of particles, determines the porosity of the soil.
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However, the petrophysical analysis shows similar porosity changes approaching a shear zone, suggesting that this is characteristic of the Boom clay, and not a peculiarity of the Kruibeke Fault Zone or methodological bias.
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Commonly the dolomite crytals form a framework with evenly distributed porosity.
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The results indicate that the casting defects are mainly shrinkage porosity and cracks caused by solidification shrink, which mainly presents in the hot spot between the spoke and the rim.
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Pore-filling cementation is also common during the diagenesis of chalks, resulting in rapid porosity loss.
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Frost fracture, therefore, predominantly affects cortical surfaces, where high porosity allows for absorption of more moisture, producing microcracks, spalling, and frost-potlidding when frozen.
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Simulation indicates that effective control of porosity in the jigger can be achieved via this system.
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In the footwall, there is density increase and porosity reduction of the argillaceous matrix approaching the fault.
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The tip has a microporosity of less than or equal to 0.22 microns.
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However, the overall mean coordination number is essentially a constant and independent of porosity or volume fraction for the binary packing under gravity.
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Genera from western biomes are present in the Fort Atkinson fauna in northeastern Illinois, indicating some porosity in the biomic barrier separating it from the Maquoketa Biome.
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Experimental determination of the permeability in the lacunar-canalicular porosity of bone.
SpaceRef Top Stories
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One striking finding was that 41 percent of the adults had a pathological condition called porotic hyperostosis, an abnormal porosity or sponginess of the bones—especially those of the skull—which is typical of anemic malaria sufferers.
The Goddess and the Bull
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However, hydrogen has almost no solubility in solid aluminum and it has been determined to be the primary cause of porosity in aluminum welds.
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Acid and Basic Resistance, porosity permeability of the pot without water seepage.
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When Alan Rusbridger talked in January's Cudlipp lecture about a new era of mutualisation, he referred to the increasing porosity of the line between journalists and readers.
Open door
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Dental fluorosis has been described as a subsurface enamel hypomineralization, with porosity of the tooth positively correlated with the degree of fluorosis. 22 It is characterized by diffuse opacities and under-mineralized enamel.
Signs of the Times
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The resulting microporosity does not significantly reduce the mechanical integrity of the foamed material.
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All kinds of casting pig equipment surface should be smooth, do not allow to have porosity, sand, osteoporosis, etc.
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- Add flocculant (magnesium sulfate, calcium chloride), but only if the ware has too low a porosity.
11. Glaze problems
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In some cases the secondary pore space created by feldspar dissolution may be infilled by clay reaction products, or the secondary pore space may be a net contribution to total rock porosity.
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A semiquantitative prediction model of shrinkage porosity for titanium alloy castings has been established.
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Experiments show that the accurate equation can express the relationship of porosity and bulk modulus of porous medium well.
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The tight grain packing and typical absence of cement in the ejecta show that porosity loss has gone to completion and hence the volume reduction will be equivalent to or exceed the initial porosity.
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The shrinkage cavity, depression, shrinkage porosity, scab and swell defects often took place with the heavy plate castings produced by adopting traditional foundry method.
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There are also very strong positive relations with effective porosity, microporosity, and total porosity.
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The wood of Mimosa teniflora presents porous distributed in uniform diffuse porosity; axial parenchyma paratracheal vasicentric, confluent vasicentric, aliform and confluent aliform; and very short fibers with thick walls.
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Our approach was to describe diffusion in the cell-substratum gap by lumping porosity and tortuosity as an ‘effective diffusion co-efficient.’
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The calibration ratio of CNLT5420 compensate neutron logging tool is the key parameter to determine the validity of porosity value.
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This is sprayed on to hair before perming and combed through to regulate hair's porosity and ensure an even finish.
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Aim To study the secondary porosity in the clastic rock storage of Ordos Basin.
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This is consistent with low-porosity sedimentary serpentine.
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The permeability of the rocks in the reservoir is mainly determined by the porosity and grain size of sands present.
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Formation mechanism of microporosity is the results of interaction between thermodynamics and solidification mechanism.
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There is a certain functional relation between seismic interval velocity and formation porosity asas residual porosity.
