Finite automata are considered in this paper a s instruments for classifying finite tapes. Each onetape automaton defines a set of tapes, a two-tape automaton defines a set of pairs of tapes, et cetera. The structure of the defined sets is studied. Various generalizations of the notion of an automaton are introduced and their relation to the classical automata is determined. Some decision probl...

Three replications of a double-blind experiment tested subliminal audiotape products that were claimed to improve memory or to increase selfesteem. Conditions of use adhered to manufacturers' recommendations, and subjects ( N = 237) were limited to persons who desired the effects offered by the tapes. Actual content and labeled content of tapes were independently varied, so that some subjects w...

The present work deals with the theoretical study on heat transfer characteristics and the performance of a cylindrical parabolic solar water heater with twisted tape inserted inside the absorber tube. The absorber tube equipped with twisted tape with six different twist ratios 5, 6, 7, 8, 9 and 10. The theoretical work is conducted in a turbulent flow regime and considering water as a working ...

We describe a multimedia, WWW-based oral history collection constructed from off-the-shelf or publicly available software. The source materials for the collection include audio tapes of interviews and summary transcripts of each interview, as well as photographs illustrating episodes mentioned in the tapes. Sections of the transcripts are manually matched to associated segments of the tapes, an...

Five crystal structures of hydrogen-bonded complexes (N-(p-iodophenyl)-M-(p-cyanophenyl)melamine.barbital, N,M-diphenylmelamine.S,5-dimethylbarbituric acid, 2-amino-4( (m-bromophenyl)amino)-6-chloro-1,3,5-triazine.barbital, melamine.5,5-dibromobarbituric a id, and melamine.barbituric acid) are presented. These particular components represent perturbations on the molecules that were previously u...

The critical currents and self-field ac losses of YBa2Cu3Oy coated conductors and (Bi, Pb)2Sr2Ca2Cu3Ox tapes were measured at several temperatures between 45 K and the respective critical temperature. The temperature dependence of ac losses was measured at 50 Hz using the lock-in method for a transport current. The frequency dependence of ac loss was measured at 55 K for transport current frequ...

Numerical simulations and experiments are carried out in this paper to research about characteristics of heat transfer, frictional resistance comprehensive performance turbulent water flow (3000 < Re 10,000) a circular tube with twisted tape inserts. A new type is proposed it shows excellent on transfer enhancement. Effects three parameters including twist ratio (p/w=3, 4, 5), geometrical struc...

This article presents the results of an analysis heat enhancement intensification using twisted tapes in linear absorbers for low-concentration parabolic trough collectors, a technology frequently considered as supplementary energy source industrial production. contribution proposes segmented application different to intensify absorption. A 33.7 mm tubular absorber placed collector focal point ...