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Abstract one of the most important purposes of studying Persian painting is to discover the mysteries of these traces and proving their relation with other Iranian and traditional art literature and with a special point of view showing their connection with the layout and grammar design in the past time. The growing of this art isn’t separated from the life of the adherents. And it’s to be effective on producing all traces of Persian painting, and always have related to the rich contents of Iranian literature; and to make available space for growing and raising the culture of this country. Traveilling through this way has created a wonderful force on personality of the painters, so that connected their mind with the principle source, away from the world powers. For studying and analyzing the structure of the two masterpieces of Persian painting of manuscript books (Shahnameh - Baysonquri and Haft Orang - Jami), the article is trying to point out and explain about the grammar design of these paintings and the way that these scientific method can be used in the new graphic arts

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A 12-week feeding trial was carried out in 500 L fiberglass tanks  to evaluate the effect of dietary choline at 0, 2, 4, and 8 g kg ^-1 levels on growth rate, body composition and total liver lipid of juvenile Acipenser baerii (37.67±0.67 g). A semi purified basal diet was formulated using vitamin free casein and wheat gluten as a protein source, a mixture of animal and plant oils as a lipid source and dextrin as a carbohydrate source. Four isonitrogenous (40% protein) and isoenergetic (18 MJ kg^-1) diets were prepared and fed to the fish three times daily to apparent satiation. Weight gain, feed conversion ratio (FCR), specific growth rate (SGR) and protein efficiency ratio (PER) were significantly affected by dietary choline (p<0.05). The best growth performance was observed in fish fed diets containing 2 and 8 g kg ^-1 choline (p<0.05). Fish fed with 2 and 4 g kg ^-1 choline showed higher lipid content compared with the control diet (p<0.05), but not significantly different in body protein (p>0.05). Total lipid of liver and plasma, plasma cholesterol, triglyceride and phospholipids levels showed an increasing trend with increasing levels of dietary choline, but not significantly different among treatments (p>0.05). Based on the results, we recommend adding a 1.5 gkg^-1 choline to commercial diet of juvenile Acipenser baerii.

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Yellow rust of wheat caused by Puccinia striiformis f. sp. tritici is one of the most important wheat diseases that threaten its production. Host resistance is the most economical and healthiest method of yellow rust management. In this study, slow rusting resistance parameters including infection coefficient, disease severity as well as reaction type were recorded for 48 rain-fed wheat genotypes along with sensitive control in 6 rain-fed environments. The field experiment was done for two consecutive years in three distinct geographical regions including Ardebil, Zarghan, and Mashhad. The additional screening test was established in greenhouse conditions. Results showed genetic variability among studied germplasms in resistance against yellow rust. In this research, G1, G04, G05, G06, G20, G21, G32, G33, G39, and G45 out of the studied genotypes had resistant and stable reactions across years and locations. Ward clustering algorithm produced three heterotic groups which can be utilized in yellow rust breeding programs through parental selection for the construction of a yellow rust mapping population. Differential genotypes testing resulted in “6E142A +, Yr27”, “38E158A +, YR27” and “134E150A +, YR27” isolates which belonged to Ardebil, Mashhad as well as Zarghan regions respectively. The resistance reaction in the seedling stage varied from that found in the field state which indicated the existence of adult plant resistance genes in their genome.

 

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Dragon’s head Lallemantia iberica, currently is grown as an oilseed crop in dry areas of Iran. In 2019, symptoms including seedling damping-off, yellows, and wilt were observed on the plants in a commercial field in Maragheh province, Iran. Based on the morphological and molecular characters, the fungus isolated from symptomatic plants was identified as Fusarium acuminatum. The pathogenicity of the fungus was confirmed through inoculation of the host plant. Subsequently, Koch’s postulates were fulfilled by re-isolation of the same fungus from the inoculated symptomatic plants. This is the first report of Fusarium wilt disease occurring in Dragon’s head in Iran and worldwide.


 

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The intermetallic compound of gamma titanium aluminide is a kind of recently developed material which has outstanding potential for utilization in high temperature structural applications due to higher ratios of strength to density and also elasticity modulus to density. In this study with considering two dielectric fluids of kerosene and de-ionized water, the effects of the most important input parameters of electrical discharge machining including pulse current and pulse on time on the output characteristics of material removal rate, tool wear ratio, some surface integrity criteria such as surface roughness and cracks, are investigated. The results indicate that, rough machining of titanium aluminide in contrary to finishing of this material, is performed efficiently. As the result of more thermal conductivity coefficient of water comparing with kerosene, the energy dissipation or loss and also plasma channel radius expansion in water is noticeably more than kerosene. This issue leads to more concentration and higher rates of thermal energy on the machined surface in the case of kerosene. Consequently, the density of surface cracks, surface roughness and intensity of surface topography alterations for the machined surface in kerosene is more than the samples which are machined in de-ionized water, but in contrary, the material removal rate with kerosene is much more than MRR in de-ionized water and also the tool wear ratio during machining process by means of kerosene is significantly less than the de-ionized water.

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In this study, bacterial cellulose based antioxidant films containing 5%wt of rosemary essential oil (REO) were prepared. The effect of lamination (production of multilayer film) and beta-cyclodextrin (β-CD) (as complex agent) on the physicochemical, antioxidant and release properties of the active films was studied. X-ray diffraction analysis revealed that the REO was able to decrease the crystallinity of bacterial cellulose film. Results of physical tests revealed that the addition of 5% REO caused to increase of water vapor permeability and decrease of mechanical stiffness and using of β-CD and lamination diminished these negative effects of REO and effect of lamination was more than β-CD. REO had a significant effect on color properties and caused to increase b values and decrease L values. REO loaded film had good antioxidant activity (68.7%) but this property decreased after lamination and β-CD complexion.  The β-CD and lamination decreased the migration rate of REO from matrix of bacterial cellulose films and the effect of lamination was more than β-CD.

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Microencapsulation is a common method to improve the viability of probiotic bacteria against environmental stresses. In this research, by using double emulsion with Persian gum, emulsion stability, physicochemical properties, microcoating efficiency and microcoating viability were investigated during storage and in a simulated gastrointestinal conditions of the digestive system. Encapsulation of Lactobacillus acidophilus in double emulsion (W/O/W) with Persian gum improved the survival under storage conditions at 4 °C for 28 days, and only 0.58 log decreased and free bacteria after passage 7 days reached zero. The microcoating efficiency was 88% and the emulsion stability was between 85% and 95.43%. The optical microscope image showed a distinct double emulsion. In the simulating conditions of the stomach, the number of bacteria decreased by 1.97 log for the micro-coated treatment and by 3.9 log for the treatment containing free bacteria, and in the simulating conditions of the intestine, it decreased by 0.45 log for the micro-coated treatment and for the treatment containing free bacteria. 1.3 decreased. The particle size was (525 nm), zeta potential (-44.68 mv) and dispersion index (0.33). The results showed that the use of Persian gum double emulsion improves the survival of Lactobacillus acidophilus against storage conditions and the simulated environment of the digestive system.