Jawad A. K. Hasan

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The ability of brassinosteroids, such as 24-epibrassinolide (EBL) to increase the resistance of oilseed rape plants (Brassica napus L.) to salt stress (175 mM NaCl) was investigated along with the possible mechanisms of their protective action. Seedlings were grown for three weeks on the Hoagland-Snyder medium under controlled conditions. The experimental(More)
Survival and growth of tiger shrimp (Penaeus monodon) at three salinity levels, 5, 10 and 15 g/L were investigated in potassium deficient natural inland saline water (PD-ISW) and potassium supplemented inland saline water (PS-ISW). Shrimps reared in PS-ISW survived well, whereas total mortality occurred in PD-ISW. The survival at 45 and 60 days at the(More)
The derivation and implementation of many algorithms in sig-nal/image processing and control involve some form of polynomial root-finding and/or matrix eigendecomposition. In this paper, higher order fixed point functions in rational and/or radical forms are developed. This set of iterations can be considered as extensions of known methods such as Newton's,(More)
In thas paper, we have developed an appronch for fzp-proximating the signal and noise suhspnws which avoid the costly eigendecomposataon or SVD. Th~sc subspac~s were approximated using ratzonal and power-lake methods applied to the sample covariance matrix. It 2s shown that MUSIC nnrl Minirnulrr Norm frequency es-timators can he derived using these(More)
Fast algorithms based on the matrix sign function are developed to estimate the signal and noise subspaces of the sample correlation matrices. These subspaces are then utilized to develop high resolution methods such as MUSIC and ESPRIT for sinusoidal frequency and direction of arrival DOA problems. The main feature of these algorithms is that they generate(More)
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