There exist rigid complete BAs, also rigid interval algebras and rigid tree algebras.
Although the administration of the ISA demands rigid time intervals (e.g. 5 min) between measurements, these fluctuate slightly depending upon the availability of the participant to reply to the verbal prompt, and the ability of the experimenter to administer timely cues.
From this point of view, problem (1.1) can model a beam or a bridge of length (L+r_{1}+r_{2}) which is totally rigid in two extremal intervals.
By far the commonest covering throughout history is the trussed roof, constructed upon a frame composed of triangular sections spaced crosswise at intervals and made rigid in length by beams.
The swept surface is described by a map from a real interval to both rigid body deformations and 2D curves.
In real world application, the preference goal for each objective function is an interval bound not a rigid value so that the problem becomes a fuzzy goal optimization problem.
A calibration target was constructed using a rigid translucent sheet material, on which a rectangular grid with known intervals was printed.
The numerical integration of the rotational motion equations of the rigid Earth is carried out over a 200 year time interval from January 1, 2000.
This interval widely includes the Reynolds number range in which rigid wire-coil inserts present better performance as passive enhancement technique for tubular heat exchanger applications Re = [200 2000].
As deduced from the reference, the frequency intervals between neighboring rotational levels are fitted to a non-rigid rotor model, thus the rotational constants are precisely obtained.
