‎In this paper first we define the morphism between geometric spaces in two different types‎. ‎We construct two categories of $uu$ and $l$ from geometric spaces then investigate some properties of the two categories‎, ‎for instance $uu$ is topological‎. ‎The relation between hypergroups and geometric spaces is studied‎. ‎By constructing the category $qh$ of $H_{v}$-groups we answer the question...

statement of problem: digital subtraction radiography (dsr) needs reproducible alignment between the x-ray source, the object, and the film for obtaining identical projections of the same anatomic region. purpose: the aim of this study was to evaluate the effect of bite registrations (placed on individual bite blocks) on the reproducibility of parallel periapical radiographs, obtained every 2 m...

geometric morphometric method was used to examine body shape variations among all the seven valid species of the genus alburnus in iran. in total 409 specimens of a. chalcoides, a. filippii, a. atropatenae, a. caeruleus, a. mossulensis, a. hohenackeri and a. zagrosensis were collected from babolrud, baleqlu-chai, miriseh, sarabeleh, gamasiyab, mahabad-chai rivers and the gandoman lagoon, respec...

landmark based geometric morphometrics and comparison of meristic characters was used to understand potential differences between populations of waspi in mashkil and mokran basins. 97 specimens of waspies were caught (64 from mashkil river and 33 from sarbaz river). 14 landmarks were digitized on pictures taken from left side of specimens and meristic characters were counted. data were analyzed...

In this paper we study two basic optimality criteria used in the theory of zero-sum semi-Markov games. According to the first one, the average reward for player 1 is the lim sup of the expected total rewards over a finite number of jumps divided by the expected cumulative time of these jumps. According to the second definition, the average reward (for player 1) is the lim sup of the expected to...

We present a theoretical foundation and a methodology for automatically assigning supply voltages to approximate ripple carry adders in which accuracy is traded for energy consumption. The error minimization problem for a fixed energy budget is formulated as a binned geometric program. We first use geometric programming to minimize the average error of the adder and compute the supply voltages ...

This report explains what it means to characterize the performance of a computer, and which methods are appropriate and inappropriate for the task. The most widely used metric is the performance on the SPEC benchmark suite of programs; currently, the results of running the SPEC benchmark suite are compiled into a single number using the geometric mean. The primary reason for using the geometric...

FPGA routing resources typically consist of segments of various lengths. Due to the segmented routing architectures, the traditional measure of wiring cost (wirelength, delay, congestion, etc) based on geometric distance and/or channel density is no longer accurate for FPGAs. Researchers have shown that the number of segments, instead of geometric (Manhattan) distance, traveled by a net is the ...