Density Sentence Examples

One half of the earth has therefore a greater density than the other.

One of the most remarkable of Airy's researches was his determination of the mean density of the earth.

The density of the population is 175 to the sq.

The density of helium has been determined by Ramsay and Travers as 1.98.

In these proportions the density of the alloy is less than the mean of its constituent metals.

The earth would intercept an amount of it proportional to the solid angle it subtends at the sun; that is to say, it would receive a deposit of meteoric matter about one-tenth of a millimetre, of density say 2, over its whole surface in the course of the year.

The passes across these ranges are comparatively low, but they are difficult because of the precipitous character of their Pacific slopes and the density of the vegetation on them.

Julius's phenomenon seems inseparable from grazing incidence, and hence any explanation it supplies depends upon his hypothetical tubular structure for layers of equal density.

The resistance of clay to percolation by water depends chiefly upon the density of the clay, while that density is rapidly reduced if the clay is permitted to absorb water.

Low density material allows greater radiation to reach the scintillation detector.

The computed density therefore does not correspond to a self-consistent atomic calculation.

Eleven out of 16 studies in postmenopausal women showed improvements in bone density with either exercise or exercise plus calcium or estrogen.

The singularity theorems imply the universe had an infinite density at some time in the past.

It is easy to calculate that this would be produced by an annual fall of matter equal to one nineteen millionth of the sun's mass, which would make an envelope eight metres thick, at the sun's mean density; this would be collected during the year from a spherical space extending beyond the orbit of Jupiter.

On the restoration of the pressure, the density will be again increased by the reduction of the water-filled interstices, and the percolation will be correspondingly checked.

Thus they not only penetrate all cavities in an exceedingly intrusive manner, but exert pressures in all directions, which, owing to the density of the asphalt, are more than 40 greater than would be produced by a corresponding depth of water.

It is obvious that the angles at the base of such a hypothetical dam must depend upon the relation between its density and that of the water.

These subjects are discussed in the articles Density; Thermometry; Calorimetry; Diffusion; Conduction Of Heat; and Condensation Of Gases.

The coma itself is very rarefied, having a density that is only about one ten thousandth of that of the Earth 's atmosphere.

Ardura 70D is a high density ripstop fabric using densely packed 70 denier yarns for strength and low weight.

This comparison verifies the steep rise of the gluon density at low x with a precision of @ 15-20 %.

Figure 2 Mean (±SD) relative change in scat density in each of the nine regions.

The density is 317 per sq.

This supposes the present density nearly uniform; if it is not uniform, any amount added to the former period is subtracted from the latter.

It can be shown, for example, that for masonry having a density of 3, water being 1, the figure of minimum section is a right-angled triangle, with the water against its vertical face; while for a greater density the water face must lean towards the water, and for a less density away from the water, so that the water may lie upon it.

As the density of the heaviest rocks is only 3, that of a masonry dam must be below 3, and in practice such works if well constructed vary from 2.2 to 2.6.

For a density of 2.5 the base would therefore be 44.7% of the height.

The late Sir Benjamin Baker, F.R.S., suggested that the stresses might be measured by experiments with elastic models, and among others, experiments were carried out by Messrs Wilson and Gore a with indiarubber models of plane sections of dams (including the foundations) who applied forces to represent the gravity and water pressures in such a manner that the virtual density of the rubber was increased many times without interfering with the proper ratio between gravity and water pressure, and by this means the strains produced were of sufficient magnitude to be easily measured.

The line of pressures as generally given for this dam with the reservoir full, on the hypothesis that the density of the masonry was a little over 2, is shown by long and short dots in fig.

Materials actu ally collected from the dam indicate that the mean density did not exceed I.

And the weight of air displaced depends upon the density of the air at the time of weighing, and therefore the barometer reading must be taken.

The retort carbon products* formed as a dense deposit on the crown of the retort by the action of the high temperature on the hydrocarbons is, however, carbon in a very pure form, and, on account of its density, is largely used for electrical purposes.

The population of Wisconsin in 1890 was 1,686,880 (exclusive of 6450 persons specially enumerated); in 1900 the total was 2,069,042 - an increase of 22.2% on the basis of the total at each enumeration; and in 1910 it reached a total of 2,333,860.2 The density of the population in 1910 was 42.2 to the square mile.

A temperature of 70, and a reversal of the current (of low density) between two cast iron electrodes every few minutes, are the best working conditions.

In 1826 and 1828, Whewell was engaged with Airy in conducting experiments in Dolcoath mine, Cornwall, in order to determine the density of the earth.

This is one of the most troublesome problems in astronomy because, owing to the ever varying density of the atmosphere, arising from differences of temperature, and owing to the impossibility of determining the temperature with entire precision at any other point than that occupied by the observer, the amount of refraction must always be more or less uncertain.

Not the slightest change in the direction of such a star when in this position has ever been detected, and it is certain that if any occurs it can be but a minute fraction of a second of arc. As an atmosphere equal to ours in density would produce a deviation of an important fraction of a degree, it may be said that the moon can have no atmosphere exceeding in density the b b l o o that of the earth.

As seen from the above table the density of the population is unequal in the various crown lands.

In the bestwatered districts agriculture is naturally of the greatest importance, except where the density of the forest renders the work of clearing too arduous.

Ice forms over fresh water if the temperature of the air has been for a sufficient time at or below the freezing-point; but not until the whole mass of water has been cooled down to its point of maximum density, so that the subsequent cooling of the surface can give rise to no convection currents, is freezing possible.

If unit mass of a solution contain m grammes of an active substance and if o be the density and p be the rotary power of the solution, the specific rotary power is defined by p/m8, and the molecular rotary power is obtained from this by multiplying by the hundredth part of the molecular mass.

Fresnel obtained his formulae by assuming that the optical difference of media is due to a change in the effective density of the ether, the elasticity being the same - an assumption inconsistent with his theory of double refraction - and was led to the result that the vibrations are perpendicular to the plane of polarization.

Franz Neumann and James MacCullagh, starting from the opposite assumption of constant density and different elasticities, arrived at the same formulae for the intensities of the reflected light polarized in the principal azimuths, but in this case the vibrations must be regarded as parallel to the plane of polarization.

At 300 metres its density is 1.253.

The play of brilliant colours and of ever-changing contrasts of light and shade on those rugged mountain-sides and on the surface of the sea itself might have been expected to appeal to the most prosaic. The surface of the sea is generally smooth (seldom, however, absolutely inert as the pilgrims represented it), but is frequently raised by the north winds into waves, which, owing to the weight and density of the water, are often of great force.

At the beginning of 1905, the state contained 181,roo people, giving a density of 6.9 persons per square mile.

The density of population for the whole government is estimated as 3.7 or 4 per sq.

The density of population being calculated at about 2.7 to 3 per sq.

This principle is capable of very wide extension, the blast furnace being mainly limited in height by the strength the column of materials or "burden" has to resist crushing, under the weight due to the head adopted, and the power of the blowing engine to supply blast of sufficient density to overcome the resistance of the closely packed materials to the free passage of the spent gases.

When melted the products separate on the bed (which is made of closely packed sand or other infusible substances), according to their density; the lighter earthy matters forming an upper layer of slag are drawn out by the slag hole K at the flue end into an iron wagon or bogie, while the metal subsides to the bottom of the bed, and at the termination of the operation is run out by the tap hole L into moulds or granulated into water.

At that time the maximum potential development considered feasible for the island was a low density business park.

Her team recently announced it had created the highest density electronically addressable memory reported to date, a 64-bit memory using molecules as switches.

About 60 million cubic meters of dome and crater wall traveled to the south as a debris avalanche and pyroclastic density currents.

These values depend on the density of protons and neutrons, which are collectively called baryons.

With the density of baryonic matter known, the total density can be determined from measuring the baryon fraction.

The living quarters must always be kept dry as it is said that wet bedding can affect density on feet.

In winter wheat, crop density is an important factor in limiting seed production by red dead-nettle through the effect on weed biomass.

The U.S. paper industry has managed to come up with a truly bizarre way of specifying the density of paper.

The lower density of ice is caused by its structure, a hydrogen bonded tetrahedral network similar to that of diamond.

The power density at the core of a fast breeder reactor is more than four times higher than that in a thermal reactor.

Density was rather low to meet my expectations, except for a great abundance of Flavescent and Brown-breasted bulbuls soon considered common.

To be an efficient fat burner you need to increase your muscle density.

Calculates the relaxing density contribution to the derivative of the energy wrt Cartesian coordinates.

The density, about 0.2 grams per cubic centimeter, means it is a gas giant like Jupiter.

The solubilized mixture was then resolved by sucrose density gradient centrifugation.

After density gradient centrifugation, virus particles were detected in the density zone of 1.34 g/ml.

Monocytes and lymphocytes may also be obtained fresh from human blood using density centrifugation to isolate distinct cell types according to their different densities.

The beams are then decked in 12mm (15mm on 900mm deep bays) high density chipboard panels.

A temporary fall in high and rise in low density lipoprotein cholesterol was observed in the study population.

Salinity is therefore a major factor in the density driven global scale thermohaline circulation.

Difference electron density for a molecule of AMPPNP is observed in the kinase active site cleft.

Weed population density may be markedly reduced using crop rotation but there has been little experimentation.

This increases its density, so it sinks and flows back south in a deep current.

At the active electrode there is a high current density due to the small area of the electrode.

The RNHRD uses the Hologic Acclaim bone densitometer, which allows bone density to be assessed in a few minutes.

Pea Forage Yield Forage yields of peas increased significantly with increased sowing density in all but the late pea harvest in 1999.

The current record for areal density for a commercially released drive is 133 gigabits per square inch, according to Toshiba.

The low energy density feeds require a large volume plant to process them.

Factors to be considered when selecting an appropriate scanner include optical resolution, optical density, bit depth and scanning time.

M Magnetic flux density A measure of the magnetic effect induced in a medium by an external field.

The bone mineral density changes were compared with a control group of 15 untreated women.

There were no significant differences in cortical volumetric bone mineral density (vBMD) at the radius or tibia diaphysis between the groups.

Drought is also thought to be a factor causing dieback in hedgerow trees, which are not included in the UK crown density survey.

For London, dwelling density rose from 48 new dwellings per hectare in 1993 to 56 in 2000.

The paper discusses the possibility that horizontal advection combined with horizontal gradients in the plasma density can contribute to the radar echoes.

They discussed traffic density with ATC, and eventually declared an emergency in order to get priority for landing.

For damped exponentials, the ordering is by energy spectral density at the peak frequency.

Matched to the tissue matrix The density of the tissue matrix in the skin has implications for dermal fillers.

A superior mattress with firm, high density hollow fiber polyester filling, to maintain high performance.

For the most popular artifacts such as ceramic color standards and neutral density filters, streamlined procedures give a fast turn-around.

The distributions of the flux, area, peak flux density and lifetimes of the concentrations are determined.

The company can also mold polyurethane foam to any density.

Further, bone mineral density of the proximal femur, lateral spine, and distal forearm was studied after eight years.

A universe with nonzero size and finite energy density appears from a quantum fuzz.

The density of ice is about 0.92 g cm and that of water is about 1.00 g cm at 0.

For this shot, weve used a neutral density grad, a filter which is darker at the top than the bottom.

There are no published EMs of material banding in sucrose density gradients.

For the most part, the density looks great.

The density of tubers was greatest in the parietal lobes, and tubers were more frequent in the cingulate gyrus than expected.

Na + and ca 2+ ions can destroy the low density structuring in a cooperative manner.

A new method of monitoring the ionosphere based on radio tomography can be used to create two-dimensional images of electron density.

The best balls were made from African ivory which was considered to be of more even density than Indian ivory.

A high density of enclosed hollows with some dry valleys constitute the surface karst.

Define omega matter and omega lambda, to be the density and lambda, divided by the critical value.

Similar trends were seen with respect to low density lipoprotein.

There was no change in levels of high density lipoprotein (HDL ), the ' good ' cholesterol.

The values represent the approximate logarithm of the flux density.

We first estimate the far infrared luminosity density for the luminosity density for the luminosity function derived from IRAS 60 µm data.

Where necessary, treatments that include mammograms, cervical smears, hormone tests, bone density scans, are available.

Generally there is no point providing a solvent mask, since the solvent density generally does not provide a match to atomic features.

Bosnia's population density in 1998 was 66 persons per sq km (170 per sq mi ).

A high density store for positive microfilm is built.

Osteoporosis affects not just the bone mineral density, but also the internal microstructure of bone.

By using a triple density midsole, which they call " progressive posting.

Difference density maps were used to locate the ordered solvent molecules, which were included in the refinement.

Case 8 Cerebral embolus from atrial myxoma Findings Subtle reduced density in the left basal ganglia on CT.

Several works have obtained successful results achieved by combining occultation and ground GPS data to estimate the local three-dimensional structure of ionospheric electron density.

The book covers complex ideas, and the amount and density of information could seem off-putting to the busy practitioner.

Identification of altered gene expression in polymyositis using Affymetrix high density oligonucleotide arrays.

Define omega matter and omega matter and omega lambda, to be the density and lambda, divided by the critical value.

These density waves are twisted by the elliptical orbits into spiral arms.

For a given bone mineral density, the risk of fracture in steroid-induced osteoporosis is twice as high as in post-menopausal osteoporosis.

Dual density carbon outsole provide durability and a lightweight cushioned ride.

There's no frame and no special system for stabilizing the load, just dual density padding with mesh on the outside.

In the dense center of the cluster, the star density can increase from 100 to 1000 per cubic parsec.

We are investigating the determination of the uncertainty of the proton parton density functions.

The second, based on Basell's Lupotech T technology, will produce low density pe.

The density of states at the surface is calculated within the GW approximation of many-body perturbation theory.

To return to the pie chart analogy, you would not draw a pie chart of population density but one of total population.

For a long time it was regarded simplest and esthetically most pleasing to postulate that our universe is now of exactly critical density.

In short Regular Pegasus wearers might find the second density a little obtrusive at first, as the ride doesn't feel quite as plush.

Target materials are low and linear low density polyethylene, but the new masterbatches can also be used with HDPE and PP.

Our products are made in Britain of mild steel coated in black high density polyethylene to withstand the toughest weather.

The recycled plastic is made from a range of waste plastics, its main constituents being low and high density polyolefins.

Low density polythene is used for things like plastic bags.

The whole of the rest of Lapland is very sparsely populated with a density of only slightly over two persons per sq km.

It also showed some very high density objects, including a possible potsherd.

Any density gradients result in net negative pressure gradients which act on positive matter to produce negative buoyancy forces.

It is a suggestive coincidence that the space density of bright optical quasars also reached a peak sometime around z = 2-3.

The density measurements gave no ground for reliance on an unusual isotopic ratio.

The massive high density polyethylene container is durable, impact resistant, ultraviolet stabilized and corrosion free.

This comparison verifies the steep rise of the gluon density at low x with a precision of @ 15-20% .

Despite the population density, Central Java is predominately rural with an agricultural-based economy.

Use Ampère's law to calculate the flux density inside a long solenoid.

In Figure 5, the energy period lies in the middle of the power spectral density.

Knots of higher density cause the regions behind them to be protected from direct starlight hence building up extended shadow zones.

Others have steeper outer density profiles, show sharp breaks in their density profiles, or have significant substructure.

Methodologies are all too often subsumed into the density of the doctoral dissertation, rarely to see the light of the wider academic day.

There is a small soft tissue density closely applied to the upper mediastinum on the right, in the superior sulcus.

Density of newly synthesized plasma membrane proteins in intracellular membranes.

The result is far better than we can get with equivalent density on our digital synthesizer here at Stanford.

Greater character density allows better data throughput than ASCII for the same baud rate.

The density of the reflections can be adjusted by increasing the transparency of the Rays layer.

Collectively the combination of disordered eating, menstrual irregularities and reduced bone density has become known as the female athlete triad (6 ).

In hypertensive patients eprosartan does not affect fasting triglycerides, total cholesterol, or LDL (low density lipoprotein) cholesterol levels.

Manufactured from heavy duty high density ultraviolet resistant plastic Features easy carry handles and antiperch domes.

Constructed with an innovative blend of resin and high density rigid urethane, these trays are approximately 40% lighter than stone trays.

The outer layer is then backed up with a high density urethane foam to add stiffness and impact resistance.

The variation of water vapor density with altitude suggests the water vapor density with altitude suggests the water vapor may come from a localized source comparable to a geothermal hot spot.

This allows a much higher density of traps, much more action, and still feels vast in practice.

The density relieving spheres within CMM dramatically damp vibration, offering a pure, soft feel.

The two materials investigated were a carbon black filled high density polyethylene (HDPE) and a filled ethylene vinyl acetate (EVA ).

The island also supports a high density of breeding waders, with 67 pairs being recorded in 1987.

Watt density is the total wattage of the heater divided by the heated surface area of the heater.

The slower propagation of light in gas or water than in air or vacuum may be attributed to a greater density, or to a less rigidity, in the former case; or we may adopt the more complicated supposition that both these quantities vary, subject only to the condition which restricts the ratio of velocities to equality with the known refractive index.

As Lord Kelvin has shown (Baltimore Lectures, p. 304, 1904) (16) may also be obtained by the consideration of the mean density of the altered medium.

The charge on the earth itself has its surface density given by v = - (I/47r) X125 volts per metre, =0.000331 in electrostatic units.

The density of population is 85.38 per sq.

The accepted atomic weight is accordingly double the density, i.e.

The Hrault average density of population in France is about 190 Ille-et-Vil to the square mile, the tendency being for the large Indre towns to increase at the expense of the small towns Indre-et-I as well as the rural communities.

The average density increased from 257.21 per sq.

The outer layers are denser than the inner, the density decreasing more or less uniformly from the outside layers to the centre of hilum.

But under the influence of the rotation the parts of greater density tend to recede further from the axis than the parts of less density.

It exhibits in a marked degree the density ol species which, as already pointed out, is explicable by the arrest 01 further southern expansion.

Love has shown that the great features of the relief of the lithosphere may be expressed by spherical harmonics of the first, second and third degrees, and their formation related to gravitational action in a sphere of unequal density.'

The maximum density of population which a given region can support is very difficult to determine; it depends partly on the race and standard of culture of the people, partly on the nature and origin of the resources on which they depend, partly on the artificial burdens imposed and very largely on the climate.

There is, however, a tendency for people to remain rooted to the 2 See maps of density of population in Bartholomew's great largescale atlases, Atlas of Scotland and Atlas of England.

It is also a fact that with each recurring decade these general expenses (also called indirect, undistributed or fixed charges) have an increased importance as compared with the particular (direct, distributed or operating) expense attaching naturally to the particular portions of the traffic. For with increased density of population it becomes profitable to make improvements on the original location, even though this may involve increased charges for interest and for some parts of its maintenance, for the sake of securing that economy of operation, through larger train-loads, which such an improved location makes possible.

The density of population in 1900 was 33.5 per sq.

His terminology was vague and provoked caustic criticism from Berzelius; he assumed that all molecules contained two atoms, and consequently the atomic weights deduced from vapour density determinations of sulphur, mercury, arsenic, and phosphorus were quite different from those established by gravimetric and other methods.

It is only by paying great attention to the current density that good results are obtained, since metals other than that sought for may be deposited.

The connexion between the density and chemical composition of solids has not been investigated with the same completeness as in the case of gases and liquids.

The pioneer work in this field, now frequently denominated " spectro-chemistry," was done by Sir Isaac Newton, who, from theoretical considerations based on his corpuscular theory of light, determined the function (n 2 - 1), where n is the refractive index, to be the expression for the refractive power; dividing this expression by the density (d), he obtained (n 2 - i)/d, which he named the " absolute refractive power."

Making this substitution, and dividing by d, the density of the substance, we obtain a/d = (N 2 - I)/(N2+2)d.

The actual values of the topic parameters can then readily be expressed in terms of the elements of the crystals (the axial ratios and angles), the density, and the molecular weight (see Groth, Physikalische Krystallographie, or Chemical Crystallography).

Change of temperature usually suffices to determine this, though in certain cases a variation in pressure is necessary; for instance, sodium magnesium uranyl acetate, NaMg(UO 2) 3 (C 2 H 3 O 2) 9.9H 2 O shows no change in density unless the observations are conducted under a considerable pressure.

Bartholomew of Edinburgh; (2) political maps, showing political boundaries; (3) ethnological maps, illustrating the distribution of the varieties of man, the density of population, &c.; (4) travel maps, showing roads or railways and ocean-routes (as is done by Philips' " Marine Atlas "), or designed for the special use of cyclists or aviators; (5) statistical maps, illustrating commerce and industries; (6) historical maps; (7) maps specially designed for educational purposes.

Lord Rayleigh in 1894 found that the density of atmospheric nitrogen was about 2% higher than that of chemically prepared nitrogen, a discovery which led to the isolation of the rare gases of the atmosphere (see Argon).

It bias the greatest density of population of any of .the Alpine provinces.

With liquid of density p, this gives rise to a kinetic reaction to acceleration dU/dt, given by 7rp b 2 a 2 b l b d J = a 2 +b2 M' dU, if M' denotes the mass of liquid displaced by unit length of the cylinder r =b.

Rutile assumes tetragonal forms isomorphous with cassiterite, SnO 2 (and also zircon, ZrSiO 4); anatase is also tetragonal, and brookite or thorhombic. Rutile is the most stable and anatase the least, a character reflected in the decrease in density from rutile (4.2) and brookite (4.0) to anatase (3.9).

From these and other considerations it is obvious that (I) the electrolyte must be such as will freely dissolve the metal to be refined; (2) the electrolyte must be able to dissolve the major portion of the anode, otherwise the mass of insoluble matter on the outer layer will prevent access of electrolyte to the core, which will thus escape refining; (3) the electrolyte should, if possible, be incapable of dissolving metals more electro-negative than that to be refined; (4) the proportion of soluble electro-positive impurities must not be excessive, or these substances will accumulate too rapidly in the solution and necessitate its frequent purification; (5) the current density must be so adjusted to the strength of the solution and to other conditions that no relatively electro-positive metal is deposited, and that the cathode deposit is physically suitable for subsequent treatment; (6) the current density should be as high as is consistent with the production of a pure and sound deposit, without undue expense of voltage, so that the operation may be rapid and the "turnover" large; (7) the electrolyte should be as good a conductor of electricity as possible, and should not, ordinarily, be altered chemically by exposure to air; and (8) the use of porous partitions should be avoided, as they increase the resistance and usually require frequent renewal.

Coulomb proved the proportionality of electric surface force to density, but the above numerical relation E= 42ra was first established by Poisson.

Hence if we remove the charge -q at B and distribute electricity over the surface PO with a surface density a, according to the Coulomb-Poisson law, a = qAO/21rAP3, the field of force to the left of PD will fulfil the required boundary conditions, and hence will be the law of distribution of the induced electricity in the case of the actual plate.

Therefore, whatever may be the distribution of electric force produced by the charges inside taken alone, it can be exactly imitated for all space outside the metal surface if we suppose the inside charge removed and a distribution of electricity of the same sign made over the metal surface such that its density follows the law Q = - (1 /47r)dU/dn (27), where dUldn is the electric force at that point on the closed equipotential surface considered, due to the original charge alone.

The brewer has gone a step further in simplifying his expressions by multiplying the density by 1000, and speaking of the difference between the density so expressed and 1000 as "degrees of gravity" (see Beer).

This is continued until the particle freely swims, and then the density of the mixture is determined by the ordinary methods (see Mineralogy).

The electrolyte commonly contains about a lb of copper sulphate and a lb of strong sulphuric acid per gallon, and is worked with a current density of about ro amperes per sq.

Recent pendulum observations have shown that it is incorrect to assume a uniform density of 2.6 in the elevated part of the earth's crust, that on the contrary there are great local differences in density, the most important being a confirmation of Airy's discovery that there is a marked deficiency of mass under high mountains and a marked excess under the bed of the ocean.

If we assign to a column of water at the equator the density S-7-= 1.02 2 at the surface and 1.028 at l000 fathoms, or an average of 1.025, and to a column of water at the polar circle a mean density of i 028, there would result a difference of level equal to (1.028 - 1.025) X moo = 3 fathoms in a distance from the equator to the polar circle of some 4600 m.

Administratively the territory is divided into the following three districts, showing a density of population of about 316 to the sq.

Ingalls, U.S.A., for approximating to a high angle trajectory in a single arc, which assumes that the mean density of the air may be taken as the density at two-thirds of the estimated height of the vertex; the rule is founded on the fact that in an unresisted parabolic trajectory the average height of the shot is two-thirds the height of the vertex, as illustrated in a jet of water, or in a stream of bullets from a Maxim gun.

Its vapour density agrees with the molecular formula C302, and this formula is also confirmed by exploding the gas with oxygen and measuring the amount of carbon dioxide produced (see Ketenes).

There appears, however, to be some objection to the use of iridio-platinum for weights, as, owing to its great density (Δ=21.57), the slightest abrasion will make an appreciable difference in a weight; sometimes, therefore, quartz or rock-crystal is used; but to this also there is some objection, as owing to its low density (Δ=2.65) there is a large exposed surface of the mass.

Neglecting the very small buoyancy of the vapour, the hydrostatic pressure P at the foot of the column of solution is h g p where h is the height of the column and p the mean density of the solution.

The current density is about 700 amperes per sq.

Further, he showed that the spectrum of a dense ignited gas resembles that of an incandescent liquid or solid, and he traced a gradual change in the spectrum of an incandescent gas under increasing pressure, the sharp lines observable when it is extremely attenuated broadening out to nebulous bands as the pressure rises, till they merge in the continuous spectrum as the gas approaches a density comparable with that of the liquid state.

The current from a Wilde's dynamo was passed, apparently with a current density of 5 or 6 amperes per sq.

The yak of Thibet cannot long survive in the plains ofIndia, or even on the hills below a certain altitude; and that this is due to climate, and not to the increased density of the atmosphere, is shown by the fact that the same animal appears to thrive well in Europe, and even breeds there readily.

But whether the assumption of uniform density be physically correct is a very different question, and Poisson rendered good service to science in showing how to carry on the investigation on the hypothesis that the density very near the surface is different from that in the interior of the fluid.

We may, therefore, write for the pressure at a height y p= - pgy, T A b e ?; y t L - == --ti where p is the density of the liquid, or if there are two fluids the excess of the density of the lower fluid over that of the upper one.

For the sections of masonry dams actually used in practice, if designed on the condition that the centre of all vertical pressures when the reservoir is full shall be, as hereafter provided, at two-thirds the width of the base from the inner toe, the least sectional area for a density of 2 also has a vertical water face.

If now we assume the water to have a depth d above the base, the total water pressure represented by the triangle kbh will have its centre at d/3 from the base, and by the parallelogram of forces, assuming the density of the masonry to be 2.5, we find that the centre of pressure upon the base bc is shifted from the centre of the base to a point i nearer to the outer toe c, and adopting our assumption of uniformly varying intensity of stress, the rectangular diagram of pressures will thus be distorted from the figure bfgc to the figure of equal area bjlc, having its centre o vertically under the point at which the resultant of all the forces cuts the base bc. For any lower level the same treatment may, step by step, be adopted, until the maximum intensity of pressure cl exceeds the assumed permissible maximum, or the centre of pressure reaches an assigned distance from the outer toe c, when the base must be widened until the maximum intensity of pressure or the centre of pressure, as the case may be, is brought within the prescribed limit.

Its density is 20+ times that of earth being a slow smoldering brown dwarf star.

Use Ampère 's law to calculate the flux density inside a long solenoid.

Reducing stocking density in summer months is unlikely to offer any welfare benefits.

We would normally expect stomatal density to be related to the climate in which the plant is adapted to grow.

Density stratification of the water column is well developed over much of the area in the summer.

When these adults were supplemented with magnesium for two years, their bone mineral density increased significantly.

Line transect methods are used to estimate fecal pellet density, which in turn leads to deer density.

Collectively the combination of disordered eating, menstrual irregularities and reduced bone density has become known as the female athlete triad (6).

Net residential density is measured as the number of dwelling units per hectare of land developed specifically for housing and directly associated uses.

In this case, Wachs chose to use titanium compounds to tailor the electron density of clusters of vanadium oxide on a silica support.

The variation of water vapor density with altitude suggests the water vapor may come from a localized source comparable to a geothermal hot spot.

The two materials investigated were a carbon black filled high density polyethylene (HDPE) and a filled ethylene vinyl acetate (EVA).

Also the phase difference between the same two wavelet coefficients gives the phase of the cross-spectral density between these signals.

In winter wheat, increasing crop density will reduce seed production due to the effect on weed growth.

The most common method of measuring bone density involves a simple test called dual energy x-ray absorptiometry (DXA).

Cheaper pool tables are made with Slatron synthetic plastics layered onto particle board, and Permaslate, a honeycombed plastic set between two plastic sheets of plastic and medium density fiberboard (MDF) commonly used in construction.

The higher the density the higher quality the rug is.

In this case, the higher the number is, the better the quality is (density in down is a good thing and will provide the best insulation).

Many people say that the most essential aspect of the golf club is the shaft, because it can vary in length and density, which can greatly affect your game.

Generally, the higher the density of the foam topper, the more support it will provide.

For most individuals, the density of the foam should be at least 4 pounds, which means that a cubic foot (a 12 x 12 x 12 square) of foam will weigh four pounds.

Less expensive toppers may come in a density of as low as one to two pounds.

Not only will a higher density mattress provide you with more support, but it is also likely to hold up better under wear-and-tear.

These chemicals give the memory foam the variances in its density properties.

For the higher density, the foam relies on the heat from your body to mold around you.

A lower density memory foam mattress or pillow uses your body or head's weight to fit the shape of each respective form.

Memory foam consists of polyurethane and chemicals that increase its density.

Memory foam with a high density reacts to the heat of the body, allowing it to mold to your specific space.

Inside the mattress are two foam structures of different density.

Then it is time to choose a mattress, such as the Fabulous Futon mattress, which is an excellent basic handmade futon mattress with two layers of high density foam and four batts of cotton/poly filling.

Place a piece of plywood or medium density fiberboard (MDF) on top of the bed frame, making sure it's straight.

The amount of energy that is transferred to the blades depends on both the density of the air and the speed of the wind.

Garlic is thought to reduce blood levels of low density lipoproteins (LDLs), which are considered to be the "bad" type of cholesterol.

Consider the use of filters for dramatic effect, such as neutral density filters or a polarizer.

If this is your goal keep in mind that the density of the cake matters a lot especially if it needs to hold weight.

Postmenopausal female smokers have a significantly lower bone density than their non-smoking counterparts.

Most dog cages fall into two categories, wire, and high density plastic.

Although nearly any type of dog crates are better than no crates at all, high density plastic carriers provide the most protection for travelling dogs, and are the number one choice of most dog show exhibitors because of their versatility.

The Vari-Kennel is actually a two piece, high density copolymer plastic shell that bolts together.

These products are completely open to wind, sun and rain, and with typical wire spacing running 1-1 1/2 inches apart, do not offer the same security as high density plastic dog cages.

Orthopedic dog beds make use of a high density orthopedic foam to provide excellent cushioned support for dogs with joint pain.

These dog beds are constructed from high density foam that doesn't pack down with repeated use the way fiber filled beds do.

I prefer to use high density plastic crates to protect my dogs when we're on the go.

These carriers come in sizes to fit nearly any size pet and are made from high density plastics that hold up well to impacts.

They're made from high density rubber that stands up to moderate and heavy chewers.

The plants differ in habit, some being nearly prostrate, and others erect or drooping, though the largest are not much over 2 feet high; their fruits also vary in density and texture.

However, high density planting is preferred by some gardeners because smaller trees are desirable in smaller spaces.

The shape of the body, the density of the wood, the pickups and the wiring all figure in to the sound that the guitar produces.

It is easy to work with, and less likely to split or check when compared to other woods, and it also has a low density and is less prone to shrinkage.

Green tea is naturally full of antioxidants, and some of the most promising research suggests that it can help control blood sugar, boost immune function, maintain bone density and heart health, burn fat, and lower cognitive impairment.

The term denotes access, but not how much nor the density of that space.

It does not specify if that means a density of 10 cows per acre or 100 or more.

These stylish designs are made of high density polyethylene and have 30-inch wide seats and a weight capacity of 800 pounds.

In a very large eruption, volcanic ash, especially when it is accompanied by rocks, can have the weight and density of hailstones.

However, less visible light may get through and a lower optical density than glass.

Since it's imperative that you get the right optical density and filter for the task in order to protect your eyes, don't be afraid to ask questions before making a purchase.

The composites made by mixing cork granules and cement have low thermal conductivity, low density and good energy absorption.

Hydrometer - This device measures the density of the wine.

This is because the density of the population cannot sustain the density of cell phone towers needed to provide reliable service over such a widespread area.

However, the iPhone 4 has a higher pixel density, offering a better resolution in a smaller space.

The iPhone 4 also has higher pixel density than you can detect with the human eye, which improves the quality of the photos you take with the VGA camera.

It's not enough to simply have a large display on a smartphone; having a higher pixel density results in crisper images and easier-to-read text.

While the HTC Droid X and Droid X both have large 4.3-inch displays, the Apple iPhone 4 has a better pixel density on its "retina" display (326 pixels per inch vs. 217 pixels per inch).

The doctor will usually order blood tests, an electrocardiogram, urinalysis, and bone densitometry (bone density test) in order to exclude other diseases and to assess the patient's nutritional status.

X rays or a CT scan can determine bone density and reveal gastrointestinal disturbances, as well as heart and lung damage.

The greater the density of the material that the x rays pass through, the more rays are absorbed.

Heavy metals are chemical elements that have a specific gravity (a measure of density) at least five times that of water.

Heavy metal-One of 23 chemical elements that has a specific gravity (a measure of density) at least five times that of water.

This type of injury occurs because the brain is of a different density than the skull and can be injured when delicate brain tissues hit against the rough, jagged inner surface of the skull.

Dairy products were associated with higher bone mineral density in the spine, while calcium supplements had no such benefit.

Neutral density filters may also be held over the eye to aid in the diagnosis.

Osteopetrosis is usually diagnosed when x rays reveal abnormalities or increases in bone density.

Individuals with this condition show diminished bone density (bone mass/bone width).

Most of these products claim to either halt hair loss and speed growth, increase hair density, or all of the above.

Because of its unique properties and density, the cream stays in place well and is not runny or thin, making it convenient for users who need to take more time for a clean shave.

Normally, volumizing hair products coat the hair shaft to increase cuticle density which, in time, can result in lusterless heavy hair and product build-up.

Hair density, color, texture, skin color, and area to be treated can all affect the cost of laser hair removal.

Grow out your layers and aim for this length if you want to see some major changes in the density of your hair.

Vitamin E - maintains integrity of cell membranes throughout the body and protects fats in low density lipoproteins from oxidation.

Vitamin D helps your body to absorb calcium, which in turns helps to improve bone density and keep your skeletal system strong.

Contrary to popular belief, it isn't just women that can experience loss of bone density.

Utilize that density by submitting your requests to forums.

All gemstones aren't the same density as diamonds.

The lack of nutrients makes you vulnerable to other conditions such as loss of bone density and anemia.

You may want to consider a bread recipe with a high density in order to take advantage of all those yummy chicken or turkey drippings.

Watch for shadows that appear to have a different color or density from the shadows surrounding them.

Part of Clennell's presentation included the suggestion that eruptions of these methane hydrates could actually reduce the density of ocean water enough to sink entire ships.

The large volume of methane at the surface of the ocean would lower the density of ocean water.

As the lower density water pulls the ship down, ocean water would fill the ship and eventually pull it down to the bottom of the ocean.

A high density polyurethane pivot point allows for 360-degree movement while the air-cushioned heel allows for maximum shock absorption and comfort.

Piercing the rook can be quite painful due to the density of the cartilage.

A keyword density of approximately 3% for the main term is good enough to improve search engine rankings without reaching the limit for what would be considered spam, and doesn't seem overly repetitious to the reader.

The colors, grain, density, and other properties of these woods vary, but the cleaning methods for each one are very similar.

Strengthened bone density, lowering the risk of osteoporosis, stress fractures, or easy bone damage.

Excessive consumption of ACV has been known to have a negative affect on potassium and bone density levels.

Or perhaps you've scene people emerged into a large tank to determine their body density.

Total cholesterol is made up of both HDL (high-density lipoproteins) and LDL (low density lipoproteins).

Broth-based soups have a lower energy density and are low in calories, filling and able to be consumed in greater volume than other foods.

Long-term use of vinegar may lower bone density.

Studies have found a link between the use of vinegar and lower bone density.

Interestingly, drinking more milk is not a good answer to the problem, as the animal proteins in dairy products actually balance the calcium needed for protein metabolism, resulting in no net increase in bone mineral density.

Increased muscle mass and/or density - Depending on your goals, exercise and lifting weights will help you to increase your muscle mass or improve the density of your muscles.

By increasing bone mineral density, you can prevent post-menopausal bone loss.

You will not only build muscles, but you will also improve your bone density.

The pulling action of your muscles will strengthen your bones and increase their density.

When you engage in strength training, the act of moving your bones through muscle action increases its density.