A reflexed ring of hardened tissue, known as the peristome, surrounds the entrance to the pitcher (only the aerial pitchers of N. inermis lack a peristome).
They're not likely hardened criminals with smuggling rings.
Later, armourers used punches of hardened iron to cut rings from sheets: this reduced the labour involved and, hence, the cost.
ST. LOUIS — Even for the hardest of ring-hardened wrestling fans on hand here for the $2 beers and homegrown grappling action, Gary Jackson's recent Saturday night victory was a particular outrage.
And the wear rate in a block on ring test against hardened steel was reduced by a factor of five.
The workability properties (i.e. slump flow, T50 cm slump flow time, V-funnel flow time, and J-ring flow) and hardened properties (i.e. compressive strength and ultrasonic pulse velocity) of SCC were determined, and a blocking assessment was performed.
The traditional Easter bread ring has two unpeeled hardened eggs inside the dough.
That means stronger sea walls, natural barriers, hardened power grids, hardened water systems, hardened fuel supplies".
We systematically investigated the fresh and hardened properties including unit weight, slump flow diameter, slump flow time, J-ring flow, V-funnel flow time, L-box, ultrasonic pulse velocity (UPV), and compressive strength.
More radiation-hardened silicon pixel sensors of configuration n+/n/p+ with single-sided multi-guard ring structures have been developed and tested under the radiation environment expected at LHC.
