annulus

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  • noun

Synonyms for annulus

a toroidal shape

(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar

References in periodicals archive ?
Usually, there is an annular ring requirement or a spec that at least demands tangency.
In addition, the desired annular ring, or hole-to-pad misalignment, is input into the application.
The minimum outerlayer annular ring that a fabricator can produce is a function of the material movement due to multilayer lamination effects, variability in the photoimaging process due to environmental changes and laser-drilling variation and tolerances.
These calculations apply to determining via diameter in relation to annular ring size; another is setting correct via spacing and consistently maintaining that spacing for good signal integrity.
Annular ring and wrap plating seem to be the primary drivers to calling out Class 2 when Class 3 was originally desired.
The impact results in targetoid erythema (central area of normal skin with a surrounding erythematous annular ring) that may become purpuric (paintball trauma may present immediately with purpuric lesions).
You could try cleaning the boards with white spirit and steel wool but I would line the floor with hardboard (not to be confused with MDF) and fix with annular ring nails, spaced the width of your hand apart.
Use annular ring nails to fix to the floor with the nails spaced at about the width of your hand.
RSW antennas that belong to a class of patch radiators are designed with shorted annular ring (SAR) or inverted shorted annular ring (ISAR) patches.
Yang, "Integrated compact circular polarization annular ring slot antenna design for RFID reader," Progress In Electromagnetics Research Letters, Vol.
If the fabricator can build 3 mil lines and spaces, the result will be enough room for a 0.06mm (5 mil) via, including annular ring. That's not much space.
Annular ring slot antennas are widely used as the installation to an aircraft since they have the advantages of simple structure, low profile, and omni-directional azimuth radiation pattern.
This study examines the withdrawal load and energy capacity of three types of nail fasteners that are commonly used to attach sheathing to framing members: 8d common, annular ring shank, and helical shank.