Porosity is directly influenced by the packing of even-sized spherical grains, rearranged from loosely packed to tightest packed in sandstones.

Porosity is important, but, alone, it does not determine a rock's ability of being an aquifer.

Porosity is derived from the ratio of count rates at these two detectors rather than from count rates at a single detector.

Porosity, often not visible without the use of advanced nondestructive testing methods, is a serious concern because it can potentially weaken the weld.

Porosity ( n ) is a directly measurable aquifer property ; it is a fraction between 0 and 1 indicating the amount of pore space between unconsolidated soil particles or within a fractured rock.

This is calculated using the volumetric equation-GRV x N / G x Porosity x Sh x FVF

Porosity is the proportion of fluid-filled space found within the rock.

Porosity,, is the ratio of volume of voids to the total volume, and is related to the void ratio:

Porosity is defined as the fraction of void within the pSi layer and can be determined easily by weight measurement.

Porosity logs measure the fraction or percentage of pore volume in a volume of rock.

; Porosity: Ratio of the volume of voids ( containing air, water, or other fluids ) in a soil to the total volume of the soil.

Porosity can be reduced by adding fluorite and other fluxes.

Porosity of wood can vary greatly, even within the same piece of wood.

* Porosity in geology and hydrology.

Porosity usually decreases during diagenesis, except in rare cases such as dissolution of minerals and dolomitization.

* Porosity.

Porosity does not directly affect the distribution of hydraulic head in an aquifer, but it has a very strong effect on the migration of dissolved contaminants, since it affects groundwater flow velocities through an inversely proportional relationship.

* Porosity of hair can affect the final shade.

Porosity and brittleness were the primary problems and the solutions that developed included the use of hydrogen, argon, and helium as welding atmospheres.

`` My doctors assure me that this increased percentage of risk is not great ''.

The objective should be to provide a method of getting into print a higher percentage than is now possible of the relevant information in the possession of reporters and editors.

If the resulting difference for the particular State is less or more than these extremes, the State's allotment percentage must be raised or lowered to the appropriate extreme.

Regardless of its unadjusted allotment, each State is guaranteed by law a minimum allotment each year equal to the allotment which it received in fiscal year 1954 -- increased by a uniform percentage of 5.4865771 which brings total 1954 allotments to all States up to $23,000,000.

The percentage of Federal participation in such costs for any State is referred to in the law as that State's `` Federal share ''.

For purposes of this explanation, this percentage is referred to as the State's `` unadjusted Federal share ''.

Competitors came to receive higher percentage of General Motors business in later years, but it is `` likely '' that this trend stemmed `` at least in part '' from the needs of General Motors outstripping Du Pont's capacity.

For this reason, the more uncertain skywave service was denominated `` secondary '' in our rules, as compared to the steadier, more reliable groundwave `` primary service '', and, for both skywave service and skywave interference, signal strength is expressed in terms of percentage of time a particular signal-intensity level is exceeded -- 50 percent of the time for skywave service, 10 percent of the time for skywave interference.

-- The crystallization of copolymers comprising Af units interspersed with a minor percentage of Af is limited by the inability of the crystal lattice characteristic of the former to accommodate the bulky side group of the latter.

The percentage of Jewish girls who attend college is almost as high as that of boys.

One of the reasons for the high percentage of Jewish teen-agers in college is that a great many urban Jews are enabled to attend local colleges at modest cost.

It is interesting that, although the percentage of married students is not appreciably higher at Brooklyn than elsewhere -- about 30 per cent of the women and 25 per cent of the men in the graduating class -- the anxiety of the unmarried has puffed up the estimate.

It should be admitted, too, that there is a good percentage of lapsed or nonchurchgoing Catholics ( one paper writes 50 per cent ).

The temptation is to say that, as the percentage of church members mounted, the degree of discipline exercised by the churches lessened and the trend was towards conformity to the general level.

Being a dimensionless fraction, it may also be expressed as a percentage, and is measured on a scale from zero for no reflecting power of a perfectly black surface, to 1 for perfect reflection of a white surface.

Related to this is lexicostatistics, which attempts to determine the degree of relation between a set of languages by comparing the percentage of basic vocabulary ( words like " I ", " you ", " heart ", " stone ", " two ", " be ", " and ") they share in common.

The publisher of a work might receive a percentage calculated on a wholesale or a specific price and or a fixed amount on each book that is sold.

The novel is believed to be based on the cholera epidemic that killed a large percentage of Oran's population in 1849 following French colonization, but the novel is placed in the 1940s.

Because the percentage of each constituent can be varied, with any mixture the entire range of possible variations is called a system.

Spalding's. 796 career winning percentage ( from an era when teams played about once or twice a week ) is the highest ever achieved by a baseball pitcher.

When the volume of an alcoholic drink is shown in centilitres, determining the number of units in a drink is as simple as < var > volume </ var > × < var > percentage </ var > ( converted into a fraction of 1 ).

In accordance with legislation passed at the last session of Congress, each Representative is authorized to deliver to the Post Office in bulk newsletters, speeches and other literature to be dropped in every letter box in his district.

These cases in which light is already visible at the other end of the tunnel are ones which over the next few years will absorb the bulk of our capital assistance.

The fact that sticks out in this voluminous record is that the bulk of Du Pont's production has always supplied the largest part of the requirements of the one customer in the automobile industry connected to Du Pont by a stock interest.

The use of bulk handling is continuously growing.

Because agricultural activities are seasonal and the areas of production and harvest of many foods are widely scattered geographically, and because of the high cost of transporting bulk food items any substantial distance to a central processing location, the use of large central processing stations, where low-cost radiation facilities approaching the megawatt range might be utilized, is inherently impracticable.

Local libraries find, too, that the new plan saves tax dollars because books can be bought through the system, and since the system buys in bulk it is able to obtain larger discounts than would be available to an individual library.

Library use is multiplying daily, and the bulk of the newcomers are those maligned Americans, the teen-agers.

Most apparent is their sheer bulk ; complexes averaged more than 200 rooms each, and some enclosed up to 700 rooms.

Economic activity is strongly linked to the United States, with which American Samoa conducts the great bulk of its foreign trade.

where is the acoustic pressure and is the acoustic fluid velocity vector, is the vector of spatial coordinates, is the time, is the static mass density of the medium and is the bulk modulus of the medium.

where is the shear viscosity and is the bulk viscosity.

The Theban army under Pelopidas is said to have been dismayed by an eclipse ( on July 13, 364, see 4th century BC eclipses ), and Pelopidas, leaving the bulk of his army behind, entered Thessaly at the head of three hundred volunteer horsemen and some mercenaries.

29 .</ ref > This tendency to identify one specific underlying reality made up of a material thing constitutes the bulk of the contributions for which Anaximenes is most famed.

The bulk of the transport is carried in the middle two fronts.

The bulk of Grothendieck's published work is collected in the monumental, and yet incomplete, Éléments de géométrie algébrique ( EGA ) and Séminaire de géométrie algébrique ( SGA ).

Cohesive fracture is obtained if a crack propagates in the bulk polymer which constitutes the adhesive.

The bulk of the documents relate to the running of a large, private estate is named after Heroninos because he was phrontistes ( Koine Greek: manager ) of the estate which had a complex and standarised system of accounting which was followed by all its local farm managers.

The least expensive bulk cistern is a fenced pond or pool at ground level.

Such data is critical in determining the effeto of alloy constituents in a bulk material, identification of solid-state reaction features, such as solid phase precipitates.