This paper has been attempted to compare the effect of market sale and contract strategies on yield, using a 90 survey data from tomato farmers in Khorasan-Razavi province, Iran on 2007 and applying the game theory approach. The results showed that the effect of no-contract strategy with tomato processing factories is more than contracted strategy on tomato yield in farm level. With respect to ...

This Article is brought to you for free and open access by the Electrical & Computer Engineering at ODU Digital Commons. It has been accepted for inclusion in Electrical & Computer Engineering Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Mohades, S.; Laroussi, M.; Sears, J.; Barekzi, ...

In the present paper we consider a class of exact solutions of the Schröedinger equation with the Razavi potential. By means of this we obtain some wave functions and mass spectra of relativistic scalar field model with spontaneously broken symmetry about static kink solution. Also an appearance in the theory of bosons, which have two different spins, will be shown. Herewith the breaking of sym...

In this article the potential of Radial Basis Function Neural Network (RBFNN) technique has evaluated as an alternative method for the prediction of tractor repair and maintenance costs. The study was conducted using empirical data on 60 two-wheel drive tractors from Astan Ghodse Razavi agro-industry in Iran. In this paper, the performance of Basic Back-propagation (BB) training algorithm was a...

We have described a new case of accidental intestinal myiasis that had occurred due to Eristalis tenax in Iran. A 4-year-old girl living in rural area near Bajestan city located in the south of Khorasan Razavi province visited the hospital lab with complaints of one live larva in feces and did not have other symptoms, except anal itching. This case had a history of consuming subterranean villag...

abstract according to official statistics, domestic production of edible oils provides only less than 10 percent of the country's consumption needs, and therefore every year a significant amount of crude and prepared edible oils and fats is imported to the country spending a considerable amount of foreign exchange. over the past years rapeseed, as a new product, has been implemented by a limite...

during 2010–2011, a faunistic study of the family syrphidae was carried out in torbat heydarie, roshtkhar and khaf (razavi khorasan province), northeastern iran. among the collected specimens, we found two species, paragus gussakovskii bańkowska and platycheirus immarginatus zetterstedt which are new records for the fauna of iran.

during a study on fauna of the frit flies (diptera: chloropidae) in khorasan razavi province (iran) in 2014 and 2015, nine species of six genera were collected and identified. platycephala rugosa (nartshuk, 1964) is recorded for the first time for iranian fauna. geographical distribution and biological notes are provided.

a survey was carried out to investigate the frequency of hard tick species (acari: ixodidae) on sheep in khorasan razvi province. a total of 812 ticks were collected from the sheep of different areas of khorsan razavi province five species were identified as follow: rhipicephalus turanicus (59.23%), hyalomma.marginatum turanicum (25.73%), hyalomma excavatum (14.8%), hyalomma anatolicum (8.3...