in order to study the effect of irrigation on fatty acid composition, oil and protein content of sunflower cultivars included azargol, allstar, alison and euroflor, an experiment was conducted at experimental field of the agricultural faculty of bu-ali sina university in 2007. treatments were arranged on split plot based on randomized complete block with three replications. the irrigation treat...

Abstract We present an adaptive grid refinement algorithm to solve probabilistic optimization problems with infinitely many random constraints. Using a bilevel approach, we iteratively aggregate inequalities that provide most information not in geometric but sense. This conceptual idea, for which convergence proof is provided, then adapted implementable algorithm. The efficiency of our approach...

The construction of hole filling (or hole segmentation) method for 3D volumetric images is a new challenging issue in computer science. It needs a geometrical approach since from a topological point of view 3D holes (tunnels) are not well-delimited subsets of three dimensional space. In this paper, the authors propose an original, efficient, flexible algorithm of hole filling for volumetric obj...

Abstract: In this study an algorithm for mold-filling simulation with consideration of surface tension has been developed based on a SOLA VOF scheme. As the governing equations, the Navier-Stokes equations for incompressible and laminar flows were used. We proposed a way of considering surface tension in mold-filling simulation. The proposed scheme for surface tension was based on the conti...

In this paper, power allocation is distributed within each Base Station. Two cases are considered: CSIT, and iterative water filling. In both cases, a distributed convergence criterion for power control is determined and included within iterative power allocation. In the past margin Adaptive (MA) problem in MIMO OFDMA multi-cell networks. The CSIT is avoiding the margin adaptive and are consequ...

Orthogonal-frequency-division multiplexing (OFDM) transforms a frequency-selective multiple-input multipleoutput (MIMO) fading channel into a MIMO-OFDM channel that has a well-defined outage capacity. According to Shannon theory, a transmitter with channel knowledge can achieve this capacity by a combination of eigenbeamforming and water-filling; the eigenbeamforming transforms the MIMO-OFDM ch...

We analyze the capacity of single-input-multi-output (SIMO) acoustic channels with long propagation delays and longterm frequency-dependent properties that are found in acoustic channels. The focus of this paper is on the effects of feedback delay on the achievable rate of the acoustic channel. Four power allocation policies are analyzed within a framework of orthogonal frequency division multi...

For the wireless communication systems coupled with multiple transmit receive antennas and orthogonal frequency-division multiplexing (OFDM), data sub-streams can be directed along orthogonal modes of channels, when spatial channel information is known at transmitters. These eigenmodes are generally obtained by the singular value decomposition (SVD) of spatial channel fading matrix at every car...

We use the tensor product theory to formulate a closed-form algorithm for converting Hilbert space-filling curve indices of individual points. A twodimensional Hilbert space-filling curve is specified as a permutation which rearranges two-dimensional 2n×2n data elements stored in the row-major order as in C language or the column-major order as in FORTRAN language to the order of traversing a t...