Therefore, in a solid wire, most of the cross sectional area of the wire is not used to conduct the current, which is in a narrow annulus on the surface.

2D measurement of the diameter ( d ) of the aortic annulus allows calculation of the flow CSA ( cross-sectional area ) which is then multiplied by the vti of the Doppler flow profile across the aortic valve to determine the flow volume or SV.

The area of an annulus is the difference in the areas of the larger circle of radius and the smaller one of radius:

The area can also be obtained via calculus by dividing the annulus up into an infinite number of annuli of infinitesimal width and area ( ) and then integrating from ρ

The area of an annulus segment of angle, with measured in radians, is given by:

Some chaps that know an area well can make their way by landmarks, a tree here, a wash here, a boulder there.

During nighttime hours, because of the intense skywave propagation then prevailing, no large number of stations can be permitted to operate on one of these channels, if the wide area service for which these frequencies are assigned is to be rendered satisfactorily by the dominant stations which must be relied upon to render it.

As you can see, in this Push-Pull Super Set the entire chest-back-shoulder area is vigorously exercised in alternate sectors by alternate exercises so the complete torso remains pumped-up all the time!!

Sometimes it is necessary to roughly calculate the square inch area of the opening but the calculation can usually be made with sufficient accuracy that it won't affect the final computation.

The units can be installed in basement, attic, crawlspace, or in a closet located in the living area.

In a long, rambling ranch, two such units can be installed, one serving the living area, the other the sleeping zone.

A visit to the site by a group of several persons can usually bring out new ideas or verify opinions most helpful to the planning study of any recreation area.

Other natural features which can be of high interest are the forests, canyons, mountains, deserts, seacoast, beaches, sand dunes, waterfalls, springs, etcetera with which the area is blessed.

Each area has its own historical interests with which much can be done.

Those which tell a story of the earth's formation in each area can add geological interest to the recreation sites.

Look at the physical features of the land to determine how desirable it is for use, what can be done to correct the faults, and what it will cost to make the area meet your needs in comparison to other sites.

-- The size of the area alone can be a determining factor.

Long observation has taught Mason that most landscape can be reduced to three essential planes: a foreground in sharp focus -- either a light area with dark accents or a dark one with lights ; ;

From these dosage isopleths it can be seen that an area of over 34,000 square miles was covered.

As can be seen from Figure 2, an extensive area was covered by this aerosol.

As can be seen from these dosage isopleths, approximately 100 square miles was covered within the area sampled.

One can take a vase of about 800 B.C. and, without any knowledge of its place of origin, venture to assign it to a specific area ; ;

Since effective area coverage appears fairly remote, the requirement can be borne in mind while considering the elements: air, surface, sub-surface, fixed installations, mines, and intelligence.

Merchant has found that the same basic relationships which describe the geometry and force systems in the case of the cutting mechanism can also be applied to the discontinuous chip formation provided the proper values of instantaneous shear angle and instantaneous chip thickness or cross-sectional area are used.

Hemmed in on the job and unable to assert himself, he uses the sex act so he can be supreme in at least one area.

Hurricane Carla damaged 70% of the marinas in the Galveston-Port Aransas area but fuel service is back to normal, and explorers can roam as far west as Port Isabel on the Mexican border.

An applet can also be a text area only, providing, for instance, a cross platform command-line interface to some remote system.

If needed, an applet can leave the dedicated area and run as a separate window.

The area of a shape can be measured by comparing the shape to squares of a fixed size.

Using these formulas, the area of any polygon can be found by dividing the polygon into triangles.

The student of ideas and their place in history will always be concerned with the patterns of transition, which are at the same time patterns of transformation, whereby ideas pass from one area of activity to another.

After scouring around a bit in the open area, I came across what proved to be tar-soaked logs which crackled and burned brightly, giving off vast rolls of smoke into the ashen sky.

I suppose the day will inevitably come when the area will be encrusted with developments, but at present it is deserted and seductive.

Easily the best known of these three novels is The Space Merchants, a good example of a science-fiction dystopia which extrapolates much more than the impact of science on human life, though its most important warning is in this area, namely as to the use to which discoveries in the behavioral sciences may be put.

Politics, economics, sociology -- the entire area of life that lies `` between '' -- literature and what Krim calls experience -- urgently needed to be dug into.

if it had never printed a word of literature its contribution to the politico-sociological area would still be historic.

Then a full-time planning office will be established in Rome to work with a five-member Georgia Tech research staff for development of an area planning and industrial development program.

Such support should not be difficult to come by if all the plans to be presented by the NCTA are as attractive as this outline of express buses coming into the downtown area.

The wartime protocol of September 12, 1944, designated a special `` Greater Berlin '' area, comprising the entire city, to be under joint occupation.

Top scientists have warned that an area hit by an atomic missile of massive power would be engulfed in a suffocating fire storm which would persist for a long time.

The scientists have also warned that no life above ground or underground, sheltered or unsheltered could be expected to survive in an area at least 50 miles in diameter.

The shutter aperture may be made larger or smaller by changing the foil area and adjusting the electrical energy input to the foil.

The objective is to achieve sufficient effectiveness of control on all of the area now under treatment plus the additional acres so that after the initial period only maintenance control will be needed.

An aircraft with a load of small nuclear weapons could very conceivably be given a mission to suppress all trains operating within a specified geographic area of Russia -- provided that we had used some of our ICBMs to degrade Russia's air defenses before our bombers got there.

The volume of the cylinder opening in the head gasket must be computed by multiplying its area in square inches by the gasket's thickness in thousandths of an inch.

Another thing that must be taken into consideration is the volume of the area between the top of the piston and the top of the cylinder block when the piston is in top dead center position.

Inspect the site in the field during the time of the year when the area will be most heavily used for recreation.

A restricted frontage may be too crowded an area for public use.