A study of the hydrogen line profiles indicates that a measurement of these profiles can be used to calculate a temperature for the arc plasma that is reliable to about Af percent.

The transducer itself moves the beam in a sector scan, just like a radar antenna, while the entire transducer structure is moved over a 90-degree arc in front of the eye to `` look into '' all corners.

The maximum angular diameter of any planetary disk as observed from the earth is about 1 minute of arc.

In free-burning electric arcs, for instance, approximately 90% of the total arc power is transferred to the anode giving rise to local heat fluxes in excess of Af as measured by the authors -- the exact value depending on the arc atmosphere.

The pressure gradient producing the jet is due to the nature of the magnetic field in the arc ( rapid decrease of current density from cathode to the anode ).

The purpose of the present study is to study the thermal conditions and to establish an energy balance for a transpiration cooled anode as well as the effect of blowing on the arc voltage.

But Af is just the curve Af translated without rotation through a small arc, for Af is always obtained by rotating C through exactly 90-degrees.

Like the earlier catalogs of Hipparchus and Ptolemy, Ulugh Beg's catalogue is estimated to have been precise to within approximately 20 minutes of arc.

This measure is the ratio of the length of a circular arc by its radius.

In the case of an angle ( figure ), the arc is centered at the vertex and delimited by the sides.

In the case of a rotation, the arc is centered at the center of the rotation and delimited by any point and its image by the rotation.

* Absalom is the name of a character in Eiichiro Oda's manga One Piece during the Thriller Bark arc.

A minute of arc, arcminute, or minute arc ( MOA ), is a unit of angular measurement equal to one sixtieth () of one degree (), or () radians.

In turn, a second of arc or arcsecond is one sixtieth () of one minute of arc.

Since one degree is defined as one three hundred and sixtieth () of a rotation, one minute of arc is of a rotation.

The use of deuterium HCL is preferable compared to an arc lamp due to the better fit of the image of the former lamp with that of the analyte HCL.

For the simple case where the direction of the light beam along the line SE is perpendicular to the motion of the observer then only light emitted at an angle equal to the arc cosine of the ratio of the observer's speed to the speed of light will reach the telescope.

From the northern hemisphere, an easy way to find Arcturus is to follow the arc of the handle of the Big Dipper.

Wing-beat frequency normally increases as size decreases, but as the bee's wing beat covers such a small arc, it flaps approximately 230 times per second, faster than a fruitfly ( 200 times per second ) which is 80 times smaller.

Gas injection through a porous anode ( transpiration cooling ) not only feeds back the energy transferred to the anode by the above mentioned processes, but also modifies the conditions in the arc itself.

The required distance ρ ( s ) at arc length s is defined in terms of the rate of rotation of the tangent to the curve, which in turn is determined by the path itself.

Even a vacuum can suffer a sort of breakdown, but in this case the breakdown or vacuum arc involves charges ejected from the surface of metal electrodes rather than produced by the vacuum itself.

Carving is based on the shape of the ski itself ; when the ski is rotated onto its edge, the pattern cut into its side causes it to bend into an arc.

The ABA distinguished itself from its older counterpart with a more wide-open, flashy style of offensive play, as well as differences in rules-a 30-second shot clock ( as opposed to the NBA's 24-second clock, though the ABA did switch to the 24 second shot clock for the 1975-76 season ) and use of a three-point field goal arc.

Penfield found another arc on the peninsula itself, the ends of which pointed northward.

When the graph is already acyclic, its smallest feedback vertex sets and feedback arc sets are empty, and its condensation is the graph itself.

Gatewood claimed that such companions would usually appear more than 0. 8 arc second from the M dwarf itself.

The turret traversed by hydraulic motor or by hand through 360 degrees ; the gun itself could be elevated through an arc from-15 to + 20 degrees.

The entirety of the song references Frieza and his character's arc, with the single itself rising as high as number two on the Oricon music chart.

At a few kilohertz, the welding rod will glow red hot as current flows through the greatly increased A. C. resistance resulting from the skin effect, with relatively little power remaining for the arc itself.

The third series juxtaposes the more personal story arc of the search for Greg with a wider narrative of society appearing to establish itself again with federated communities, market bartering and rudimentary railway travel, based on utilising the steam locomotives preserved on heritage railways.

The reasons for this surrender form part of the arc of the show, and the events of the war itself are depicted in the Babylon 5: In the Beginning TV movie.

Angle AOB forms a central angle of circle OA central angle is an angle whose vertex is the center of a circle, and whose sides pass through a pair of points on the circle, thereby subtending an arc between those two points whose angle is ( by definition ) equal to the central angle itself.

Proposition 30 describes the construction of a curve of double curvature called by Pappus the helix on a sphere ; it is described by a point moving uniformly along the arc of a great circle, which itself turns about its diameter uniformly, the point describing a quadrant and the great circle a complete revolution in the same time.

The story arc always starts out typically, but soon develops a dark tone, usually involving gruesome events and often character death, before typically resolving itself at the end of the month.

However, it states that about part way through the first major story arc, the series began to improve and set itself apart from other manga series.

The town is situated on a hill at the end of a natural land formation that resembles an arc ; the temple itself is built on Swami Rock, historically referred to as Kona-ma-malai, a cliff on the peninsula that drops 400 feet ( 120 metres ) directly into the sea.

Rather than moving the tube itself, electron-beam focal point ( and hence the X-ray source point ) is swept electronically along a tungsten anode in the tube, tracing a large circular arc on its inner surface.

This episode, written as a stand-alone as per the network's request, also sets up a critical plot-thread for the season arc that " will begin to reveal itself toward the end of the season ," Whedon says.

With the decline of the arc of history represented by the 1960s and 1970s, the station turned against itself.

The pilot arc will maintain itself until it is brought into proximity of the workpiece where it ignites the main plasma cutting arc.