The spider genus Enna O. Pickard-Cambridge, 1897 comprises 38 species, distributed from Mexico to Southern Brazil, and is the most diverse genus of Trechaleidae (Platnick, 2013). Enna was revised by Silva et al. (2008) and 13 further species were described by Silva & Lise (2009a, 2009b), Carico & Silva (2010), Silva & Lise (2011) and Silva et al. (2012). Silva & Lise (2010) and Silva et al. (20...

this study was conducted in split plot design based on a randomized complete block design in naghadeh region, urmia, iran in 2009-10. two sowing patterns including a1) single row planting with 50 cm between-row spacing, and a2) two rows planting on the hill with 40 cm distance and 50 cm between-row spacing (40×50) were allocated to main plots and four furrow compactions including b1) control, b...

Within image analysis the distance transform has many applications. The distance transform measures the distance of each object point from the nearest boundary. For ease of computation, a commonly used approximate algorithm is the chamfer distance transform. This paper presents an efficient linear-time algorithm for calculating the true Euclidean distance-squared of each point from the nearest ...

An experimental study was performed to investigate the effects of arrangement fan-shaped film cooling holes and density ratio (DR) on heat transfer coefficient augmentation. Both single- multi-row were considered. For holes, measured at DRs 1 2, both staggered inline arrangements single-row DR = 1.0, 1.5, 2.0, 2.5 M 1.0 2.0 conditions tested. The mainstream velocity 20 m/s, turbulence intensity...

One of the graph theoretic approaches of channel assignment for cellular networks is routing a pair of nodes arranged in a single-row axis called single-row routing problem. The network with nodes representing caller and receiver is to be transformed into a single-row network efficiently is proposed. The connected graph derived from the base network is presented using incidence matrix. The rows...

The spatial and temporal dynamics of Meloidogyne incognita, relative to soybean shoot and root growth in field microplots, were determined at 11 sampling dates during a growing season. The population dynamics of M. incognita on soybean were dependent on initial population (Pi), soil moisture, and root spatial distribution. Final egg and juvenile population densities were greatest in plots with ...

QFN packages have become mainstream designs for mobile applications. As more applications adopt the QFN style packages, I/O count requirements are increasing. The typical method for increasing pin count in a QFN package is to increase the body size to accommodate the additional lead fingers. This is undesirable though, as mobile device users are pushing for smaller package sizes. By using a dua...

We derive asymptotic expressions for the average distance distributions in ensembles of irregular low-density paritycheck (LDPC) codes. The ensembles are defined by matrices with given profiles of column and row sums.

Many pattern recognition tasks can modeled as proximity searching. From nearest neighbor classification to multimedia databases the common task is to quickly find all the elements close to a given query. This task can be accomplished very easily by sequentially examining all the elements in the collection, but turns to be impractical in two situations: when the distance used to compare elements...