Autor: Abbasi, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Histopathological changes and oxidative damage in hepatic tissue of rats experimentally infected with Babesia bigemina
Autorzy:: Esmaeilnejad, B.
Tavassoli, M.
Samiei, A.
Abbasi, A.
Shafipour, A.
Esmaeilnejad, N.
Powiązania:: https://bibliotekanauki.pl/articles/2087681.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: liver
oxidative damage
rats
antioxidants
Babesia bigemina
Źródło:: Polish Journal of Veterinary Sciences; 2018, 21, 3; 517-524
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Frequency Selection Based Separation of Speech Signals with Reduced Computational Time Using Sparse NMF
Autorzy:: Varshney, Y. V.
Abbasi, Z. A.
Abidi, M. R.
Farooq, O.
Powiązania:: https://bibliotekanauki.pl/articles/176829.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: sparse NMF
non-negative matrix factorisation
mixed speech recognition
machine learning
Opis:: Application of wavelet decomposition is described to speed up the mixed speech signal separation with the help of non-negative matrix factorisation (NMF). It is assumed that the basis vectors of training data of individual speakers had been recorded. In this paper, the spectrogram magnitude of a mixed signal has been factorised with the help of NMF with consideration of sparseness of speech signals. The high frequency components of signal contain very small amount of signal energy. By rejecting the high frequency components, the size of input signal is reduced, which reduces the computational time of matrix factorisation. The signal of lower energy has been separated by using wavelet decomposition. The present work is done for wideband microphone speech signal and standard audio signal from digital video equipment. This shows an improvement in the separation capability using the proposed model as compared with an existing one in terms of correlation between separated and original signals. Obtained signal to distortion ratio (SDR) and signal to interference ratio (SIR) are also larger as compare of the existing model. The proposed model also shows a reduction in computational time, which results in faster operation.
Źródło:: Archives of Acoustics; 2017, 42, 2; 287-295
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Induced systemic resistance to wheat take-all disease by probiotic bacteria
Autorzy:: Jasem, A.M.
Sharifi, R.
Abbasi, S.
Powiązania:: https://bibliotekanauki.pl/articles/65078.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: plant disease
soil-borne disease
Gaeumannomyces tritici
wheat yield
induced systemic resistance
probiotic bacteria
methyl jasmonate
methyl salicylate
rhizobacteria
Opis:: In this study, the effect of six commercial biocontrol strains, Bacillus pumilus INR7, B. megaterium P2, B. subtilis GB03, B. subtilis S, B. subtilis AS and B. subtilis BS and four indigenous strains Achromobacter sp. B124, Pseudomonas geniculate B19, Serratia marcescens B29 and B. simplex B21 and two plant defense inducers, methyl salicylate (Me-SA) and methyl jasmonate (Me-JA) were assessed on suppression of wheat take-all disease. Treatments were applied either as soil drench or sprayed on shoots. In the soil drench method, the highest disease suppression was achieved in treatment with strains INR7, GB03, B19 and AS along with two chemical inducers. Bacillus subtilis S, as the worst treatment, suppressed take-all severity up to 56%. Both chemical inducers and bacterial strains AS and P2 exhibited the highest effect on suppression of take-all disease in the shoot spray method. Bacillus subtilis S suppressed the disease severity up to 49% and was again the worst strain. The efficacy of strains GB03 and B19 decreased significantly in the shoot spray method compared to the soil drench application method. Our results showed that most treatments had the same effect on take-all disease when they were applied as soil drench or sprayed on aerial parts. This means that induction of plant defense was the main mechanism in suppressing take-all disease by the given rhizobacteria. It also revealed that plant growth was reduced when it was treated with chemical inducers. In contrast, rhizobacteria not only suppressed the disease, but also increased plant growth.
Źródło:: Journal of Plant Protection Research; 2018, 58, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of inclined magnetic field and Joule heating in mixed convective peristaltic transport of non-Newtonian fluids
Autorzy:: Abbasi, F. M.
Hayat, T.
Alsaedi, A.
Powiązania:: https://bibliotekanauki.pl/articles/200788.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: mixed convection
eyring-prandtl fluid
sutterby fluid
inclined magnetic field
konwekcja mieszana
płyn eyringa-prandtla
płyn sutterby
pole magnetyczne
Opis:: This article describes the influence of an inclined magnetic field on the mixed convective peristaltic transport of fluid in an inclined channel. Two types of non-Newtonian fluids are considered. The problem formulation is presented for the Eyring-Prandtl and Sutterby fluids. Viscous dissipation and Joule heating in the heat transfer process are retained. The presence of a heat source in the energy equation is ensured. The resulting problems are solved by the perturbation method. The plots for different parameters of interest are given and discussed. Numerical values of a heat transfer rate are given and analyzed.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 2; 501-514
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Mechanical and Microstructural Response of Near Beta Ti Alloys to Hot Tensile Testing
Autorzy:: Abbasi, S. M.
Momeni, A.
Daraee, M.
Akhondzadeh, A.
Mirsaeed, S. G.
Powiązania:: https://bibliotekanauki.pl/articles/351391.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: thermomechanical processing
hot deformation
dynamic softening
yield-point phenomena
hot ductility
Opis:: Hot tensile tests were carried out on Timetal-125 and Timetal-LCB near beta Ti alloys at temperatures in range of 600-1000°C and constant strain rate of 0.1 s^-1. At temperatures below 700-800°C, the homogenuous and total strains for Timetal-LCB were greater than those for Timetal-125. In contrast, at temperatures over 800°C, Timetal-125 showed better hot ductility. The yield point phenomena was observed in Timetal-LCB at all temperatures. Unlikely, for Timetal-125, it was observed only at temperatures over 800°C. The weaker yield point phenomena in Timetal-125 could be attributed to the negative effect of Al on the diffusion of V. At all temperatures Timetal-LCB exhibited higher strength than Timetal-125. It was found that there should be a direct relationship between the extent of yield point phenomena and strength and dynamic softening through hot tensile testing. It was observed that at temperatures beyond 800°C (beta phase field in both alloys) dynamic recrystallization can progress more in Timetal-125 than in Timetal-LCB. These results were in good agreement with the better hot ductility of Timetal-125 at high temperatures. At low temperatures, i.e. below 700-800°C, partial dynamic recrystallization occurs in beta and dynamic globularization in alpha phase. These processes progress more in Timetal-LCB than in Timetal-125.
Źródło:: Archives of Metallurgy and Materials; 2017, 62, 2A; 815-823
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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