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The axis is measured on an imaginary semicircle with a horizontal baseline that starts with zero degrees in the 3 o ' clock ( or east ) direction, and increases to 180 degrees in a counter-clockwise direction.
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axis and is
Down through the axis of the bridge there is a long diminishing vista like a visual echo of piers and arches, while the vaults fronting upstream and down frame the sunset and sunrise, the mountains and river pools.
It's not a science as involved as determining what makes the earth rotate on its axis or building a rocket or putting a satellite into orbit but it is, nevertheless, a science.
The direction of the tension of minimum pressure is, of course, given by the direction of the major axis of the ellipsoids.
Mason and Taylor both show that the major axis of the ellipsoids is at 45-degrees at low rates of shear and that it approaches the direction of shear with increased rates of shear.
If A is the major axis of an ellipsoid and B and C are the other two axes, the radius of curvature in the ab plane at the end of the axis Af, and the difference in pressure along the A and B axes is Af.
If it is assumed that the formula given by Lodge of cosec Af applies, the pressure difference along the major axes can be calculated from the angle of inclination of the major axis, and from this the interfacial tension can be calculated.
The Af layers are stacked normal to the ( 111 ) axis with the lower oxygens of one layer directly above the upper oxygens of the neighboring lower layer, in such a manner that the repeat is every three layers.
The restrained gyro-stabilized platform with reasonable response characteristics operates with an approximate equation of motion, neglecting transient effects, as follows: Af where U is a torque applied about the output axis of the controlling gyro.
This is normally termed the gyro input axis, 90-degrees away from the gyro output or **yj axis.
Thus if the gyro and platform-controller combination maintains the platform with zero angular deviation about the **yf axis, the system can be rotated with an angular velocity Af if a torque is supplied to the gyro output axis Aj.
As the accelerometer output is decreasing, the torque applied to the gyro output axis decreases and, therefore, the rate decreases.
A mirror is mounted on each accelerometer so that the plane of the mirror is perpendicular to the sensitive axis of the unit.
For the case of a purely inertial autonavigator consisting of three restrained gyros, a coordinate system is used where the sensitive axis of the X accelerometer is parallel to the east-west direction at the base point, and the Y accelerometer sensitive axis is parallel to the north-south direction at the base point.
The platform is leveled and properly headed, so that the X-gyro input axis is parallel to the east-west direction and the Y-gyro input axis is parallel to the north-south direction.
axis and measured
His application of reference lines, a diameter and a tangent is essentially no different than our modern use of a coordinate frame, where the distances measured along the diameter from the point of tangency are the abscissas, and the segments parallel to the tangent and intercepted between the axis and the curve are the ordinates.
Both authors used a single axis in their treatments and have a variable length measured in reference to this axis.
In polar coordinates, with the origin at the center of the ellipse and with the angular coordinate measured from the major axis, the ellipse's equation is
If instead we use polar coordinates with the origin at one focus, with the angular coordinate still measured from the major axis, the ellipse's equation is
It is the distance from a focus of the ellipse to the ellipse itself, measured along a line perpendicular to the major axis.
Here, x is the angle that a line connecting the origin with a point on the unit circle makes with the positive real axis, measured counter clockwise and in radians.
is the argument of z — i. e., the angle between the x axis and the vector z measured counterclockwise and in radians — which is defined up to addition of 2π.
Whatever axis their spins are measured along, they are always found to be opposite.
The space-time coordinates of an event, as measured by each observer in their inertial reference frame ( in standard configuration ) are shown in the speech bubbles .< p > Top: frame F ' moves at velocity v along the x-axis of frame F .< p > Bottom: frame F moves at velocity − v along the x '- axis of frame F '.
where l is the semilatus rectum: the distance from the focus to the parabola itself, measured along a line perpendicular to the axis of symmetry.
In many contexts, a positive angular coordinate means that the angle θ is measured counterclockwise from the axis.
Fold axis plunge is measured in dip and dip direction ( strictly, plunge and azimuth of plunge ).
The beam width can be measured in units of length at a particular plane perpendicular to the beam axis, but it can also refer to the angular width, which is the angle subtended by the beam at the source.
For example, those used in the Gravity Probe B experiment measured changes in gyroscope spin axis orientation to better than 0. 5 milliarcseconds ( 1. 4 degrees ) over a one-year period.
Sidereal time is a measure of the position of the Earth in its rotation around its axis, or time measured by the apparent diurnal motion of the vernal equinox, which is very close to, but not identical to, the motion of stars.
He developed a system of latitude and longitude and measured the tilt of the Earth's axis.
* W is the width of the target measured along the axis of motion.
A two axis magnetic search coil antenna measured AC magnetic fields.
* Cylindrical coordinate system represents a point in three-space using two perpendicular axes ; distance is measured along one axis, while the other axis formes the reference line for a polar coordinate representation of the remaining two components.
* Argument of periapsis defines the orientation of the ellipse ( in which direction it is flattened compared to a circle ) in the orbital plane, as an angle measured from the ascending node to the semimajor axis.
When the sun has covered exactly 15 degrees ( 1 / 24 of a circle, both angles being measured in a plane perpendicular to the earth's axis ), local apparent time is 13: 00 exactly ; after 15 more degrees it will be 14: 00 exactly.
The system consists of three independent dimensions which can be represented cylindrically in three dimensions as an irregular color solid: hue, measured by degrees around horizontal circles ; chroma, measured radially outward from the neutral ( gray ) vertical axis ; and value, measured vertically from 0 ( black ) to 10 ( white ).
axis and on
Before the accelerometers are mounted on the platform, the direction of their sensitive axis must be accurately determined.
In Fig. 7-4, the input axis of the three-axis platform is shown at some point on the earth.
Conventional oil and gas fields are found throughout the province on an axis running from the northwest to the southeast.
The city centre is laid out on two perpendicular axes: a water axis stretching along Lake Burley Griffin, and a ceremonial land axis stretching from Parliament House on Capital Hill north-eastward along ANZAC Parade to the Australian War Memorial at the foot of Mount Ainslie.
The main symmetrical axis of the city is along ANZAC Parade and roughly on the line between Mount Ainslie and Bimberi Peak.
Once on course towards the Moon, the crew put the spacecraft into a rotisserie " barbecue " mode in which the craft rotated along its long axis three times per hour to ensure even heat distribution about the spacecraft from the Sun.
The Arc de Triomphe is the linchpin of the historic axis ( Axe historique ) – a sequence of monuments and grand thoroughfares on a route which goes from the courtyard of the Louvre, to the Grande Arche de la Défense.
In a final twist, Bradley later went on to discover the existence of the nutation of the Earth's axis – the effect that he had originally considered to be the cause of aberration.
Two astigmatic image surfaces correspond to one object plane ; and these are in contact at the axis point ; on the one lie the focal lines of the first kind, on the other those of the second.
The course of the rays in the meridional section is no longer symmetrical to the principal ray of the pencil ; and on an intercepting plane there appears, instead of a luminous point, a patch of light, not symmetrical about a point, and often exhibiting a resemblance to a comet having its tail directed towards or away from the axis.
This bond lies outside the main C — C axis, with half of the bond on one side and half on the other.
Cup-type anemometer with vertical axis, a sensor on a remote meteorological station deployed on Skagit Bay, Washington ( state ) | Washington July – August, 2009.
An aerovane combines a propeller and a tail on the same axis to obtain accurate and precise wind speed and direction measurements from the same instrument.
Bridges can also be classified by their lineage, which is shown as the vertical axis on the diagram.
It maps positions on the axis,, in the s-plane to the unit circle,, in the z-plane.
Furthermore, some tramways have steeper gradients and vertical, as well as horizontal, curves, which means tram bogies often need to pivot on the horizontal axis, as well.
Both J < sub > α </ sub >( x ) and Y < sub > α </ sub >( x ) are holomorphic functions of x on the complex plane cut along the negative real axis.
0.147 seconds.