نتایج جستجو برای: finite history
تعداد نتایج: 606534 فیلتر نتایج به سال:
This paper identifies rare climate challenges in the long-term history of seven areas, three in the subpolar North Atlantic Islands and four in the arid-to-semiarid deserts of the US Southwest. For each case, the vulnerability to food shortage before the climate challenge is quantified based on eight variables encompassing both environmental and social domains. These data are used to evaluate t...
Abstract In the history of secret sharing schemes many constructions are based on geometric objects. this paper we investigate generalizations threshold and related finite structures. particular, analyse compartmented hierarchical schemes, deduce some more general results, especially bounds for special arcs novel conjunctive 2-level 3-level schemes.
This paper describes an approach to predict the acoustic nearand farfields with minimal computational requirements. The near field flow time dependent pressure history in the flow is predicted from computational fluid dynamics either using readily available finite difference codes or using in house finite element research code based on Gradient Adaptive Transfinite Elements. This pressure histo...
The relative importance of contemporary and historical processes is central for understanding biodiversity patterns. While several studies show that past conditions can partly explain the current biodiversity patterns, the role of history remains elusive. We reconstructed palaeo-drainage basins under lower sea level conditions (Last Glacial Maximum) to test whether the historical connectivity b...
The word automaton (plural: automata) was originally used to refer to devices like clocks and watches, as well as mechanical marvels built to resemble moving humans and animals, whose internal mechanisms are hidden and which thus appear to operate spontaneously. In theoretical computer science, the finite automaton is among the simplest models of computation: A device that can be in one of fini...
history - narrative interaction is one of the most important issues have being discussed in critical philosophy of history. a historian normally compiles the historical events, as the essential parts of history recording, and imports them besides some connectors through a narrative structure. the existing relation between such a narrative and the reality is of considerable concerns which are e...
Nuclear Medicine was established in Myanmar in 1963 by Dr Soe Myint and International Atomic Energy expert Dr R. Hochel at Yangon General Hospital. Nuclear medicine diagnostic and therapeutic services started with Probe Scintillation Detector Systems and rectilinear scanner. In the early stage, many Nuclear Medicine specialists from the International Atomic Energy Agency (IAEA) spent some time ...
the textit{commutativity degree}, $pr(g)$, of a finite group $g$ (i.e. the probability that two (randomly chosen) elements of $g$ commute with respect to its operation)) has been studied well by many authors. it is well-known that the best upper bound for $pr(g)$ is $frac{5}{8}$ for a finite non--abelian group $g$. in this paper, we will define the same concept for a finite non--abelian textit{...
run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...
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