aperiodic system
61Duty cycle — In engineering, the duty cycle of a machine or system is the time that it spends in an active state as a fraction of the total time under consideration.[1] The term is often used pertaining to electrical devices, e.g., switching power supplies. A …
62Polyomino — The 18 one sided pentominoes, including 6 mirrored pairs …
63Mihajlo Idvorski Pupin — Born October 4, 1858 …
64List of abstract algebra topics — Abstract algebra is the subject area of mathematics that studies algebraic structures, such as groups, rings, fields, modules, vector spaces, and algebras. The phrase abstract algebra was coined at the turn of the 20th century to distinguish this …
65GNU Screen — Infobox Software name = GNU Screen caption = GNU Screen with split screen developer = GNU Project released = ? frequently updated = yes programming language = C operating system = Unix like language = ? genre = Command line interface license =… …
66Machine that always halts — In computability theory, a machine that always halts also called a decider (Sipser, 1996) or a total Turing machine (Kozen, 1997) is a Turing machine that halts for every input. Because it always halts, the machine is able to decide whether a… …
67Maragheh — Maraga redirects here. For the village in Azerbaijan, see Maraga, Azerbaijan. For the administrative subdivision, see Maragheh County. Maragheh مراغه   city   …
68Teselación de Penrose — Una teselación de Penrose Una Teselación de Penrose o suelo de baldosas de Penrose es una teselación no periódica generada por un conjunto aperiódico de baldosas prototipo nombradas en honor a Roger Penrose, quien investigó esos conjuntos en la… …
69biopolymer — A naturally occurring compound that is a polymer containing identical or similar subunits. aperiodic b. a b. consisting of nonidentical subunits present in a nonperiodic sequence. periodic b. a b. in which there are identical, repeating subunits …
70Crystallographic image processing — (CIP) is a set of methods for determining the atomic structure of crystalline matter from high resolution electron microscopy (HREM) images obtained in a transmission electron microscope (TEM). The term was created in the research group of Sven… …
