'planar' is a correct word in written English.
You can use it to describe a flat surface, such as a plane or a geographic region. For example, "The state of California is mostly a planar region, with mountains found only along the coastal areas."
Since their inception, integrated circuits have had a two-dimensional planar structure, with a metal gate mounted across a flat conducting channel of silicon.
Dr Yabe's trick is to use relatively small Fresnel lenses transparent and relatively thin planar lenses made up of concentric rings of prisms.
Again, nobody relishes the prospect of making the radical move away from planar to vertical transistors.
Indeed, quantum and thermodynamic effects that occur at such microscopic dimensions have loomed large for several years.Until now, integrated circuits have used a two-dimensional (planar) structure, with a metal gate mounted across a flat, conductive channel of silicon.
The corresponding mathematical question, framed in 1852, became the celebrated "four-colour map problem": Is it possible to construct a planar map for which five colours are necessary?
These three pairs, and the corresponding bonds, adopt a planar triangular arrangement, and the H−C−H and H−C=C angles are predicted to be close to 120°, as is found experimentally.
These features make it possible to apply controlled humidity, heat, and gentle pressure to perform a variety of treatments, including tear realignment and repair, reduction of planar deformations, and the introduction of consolidating adhesives to reattach cleaving paint.
The planar waves, which occur along a single plane and are similar to a sinusoid (S-shaped) wave form, tend to be asymmetrical; there is a gradual increase in amplitude (peak of the wave) as the wave passes to the tip of the flagellum.
Although symmetrical planar waves have been observed, they apparently are abnormal, because the locomotion they produce is erratic.
This graph is non-planar, meaning that it cannot be drawn without at least two of the arcs crossing.
For example, using non-convex regions (e.g., "blobs" instead of circles) leads to a similar problem, only that non-planar graphs are involved instead of Helly's Theorem.
