soil erosion is undoubtedly one of the most important problems in natural areas and has a devastating impact on grassland ecosystems. the present study was conducted to assess the ability of rangeland hydrology and erosion model for estimating sediment yield on rangeland’s hill slopes in dry regions at shahid noori paired watershed of kakhk. rhem is a mathematical, distribution and physical mod...

The German cockroach, Blattella germanica, is one of the most common pest species, and is a carrier of many pathogen and allergen factors in humans. Thus, regarding public health, the control of this insect is quite important. Dietary use of hormone analogues, especially juvenoids which disrupt reproductive organ development, is a relatively new method to control cockroaches. In this study, the...

since the waste of agricultural and horticultural products is high, appropriate methods should be used to produce products with high quality and shelf life for export. in iran a great part of fruits and vegetables are dried conventionally and farmer use so2 gas for preservation and color stability of dried apricots ,but this gas is allergic and carcinogenic and effort to find suitable substitut...

0377-2217/$ see front matter 2012 Elsevier B.V. A http://dx.doi.org/10.1016/j.ejor.2012.03.043 ⇑ Corresponding author. Tel.: +1 613 533 6982. E-mail addresses: [email protected] (C. C [email protected] (J.-Y. Yu), [email protected] (H. Noori). 1 Tel.: +1 508 831 5467. 2 Tel.: +886 2 33661041. 3 Tel.: +1 519 884 0710x2571. Sustainable product design has been considered as one of the most impor...

I n the present study Iran's rice imports trend is forecasted, using artificial neural networks and econometric methods, during 2009 to 2013, and their results are compared. The results showed that feet forward neural network leading with less forecast error and had better performance in comparison to econometric techniques and also, other methods of neural networks, such as Recurrent networks ...

Estimation of runoff volume and sediment load is a problem that directly affects the performance of dams due to the reduction in the storage capacity of their reservoirs and their effect on dam efficiency and operation schedule. The simulation models can be considered for evaluation of sediment potential if the continuous field measurements are not available. Soil and Water Assessment Tool (SWA...

in this study, eleven cultivars of apricot including two early ripening (noori pishras and pishras tabasi) varieties, four mid ripening cultivars namely (shahroudi, lasjrdy, ghazi gahani and bagheri) and five late ripening cultivars i.e. (shahroudi51, shahroudi48, shahroudi29, shahroudi21 and ketabi) that had a better yield and horticultural characteristics were screened to wilsonomyces carpoph...

apricot (prunus armeniaca), palys an important role in fruit production industry in iran. irregular set of fruit, caused by either sterility of flower organs or incompatibility has been the main problem in apricot production over the years. in this study, it has been attempted to determine these phenomena for four apricot cvs. namely ‘shahroodi’, ‘nasiri’, ‘jahangiri’ and ‘noori’ through the me...