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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 ?
In these cases, Class 2 annular ring allowance is a lower performance risk than other options.
In this paper, we propose a new dual-band annular ring slot antenna.
The annular nail has a high initial peak; however, the load generally decays quickly due to the annular rings "coring" the wood.
Tables 1 and 2 compare the experimental results reported in [11] and [17] respectively for circular disk and annular ring microstrip antenna with the numerical method presented in this paper.
If the design requirement is for Class 3, additional pad diameter is required because of the annular ring requirement for Class 3 being 0.
Arrays of both rectangular and annular ring slots with corporate feed networks were built and tested successfully at 3 GHz.
Highly sheared, hotter, less viscous material flows in an annular ring along the channel walls surrounding low-shear, cooler, more viscous laminates flowing in the center of the channel.
Take off the kickboards under the kitchen units and fix the plywood in place using three-quarter inch annular ring shank nails.
A range of standard fittings is available and the conduit itself has an annular ring design to give flexibility and stop fluid spiralling down its length.
is an implantable annular ring that is part flexible and part semi-rigid.
Annular ring, plating to target land separation, target land penetration and voiding in plated and copper-filled structures are just some of the examples where the revision addresses microvia structures.
In [4], a stacked annular ring coupled to a shorted circular patch was presented which offered a large impedance bandwidth and low cross-polarization levels.
In this design, four L-probes are placed under the radiating patch to excite the annular ring and transform the input impedance.
To achieve the band-notched characteristics, a partial annular slot is embedded at the lower portion of the annular ring shaped radiating patch.
One of the scientists suggested designing a better coffee cup by using: A series of annular ring baffles arranged around the inner wall of the container to achieve sloshing suppression.