Radiative-transfer physically-based studies have previously demonstrated the relationship between leaf water content and leaf-level reflectance in the near-infrared spectral region. The successful scaling up of such methods to the canopy level requires modeling the effect of canopy structure and viewing geometry on reflectance bands and optical indices used for estimation of water content, such...

In this paper, after collecting the rock samples from eight mines and one high way slope, the tests for determination of dry density, Uniaxial Compressive Strength, tensile Strength (Brazilian Test), elastic modulus, Schmidt hammer rebound number have been done on samples. In addition, in order to calculating the mean size of rock grains, quartz content, hardness and abrasivity, a thin sections...

in this study the effects of source limitation on grain yield of twelve barley cultivars (‘aras’,‘jonub’,‘reihan’,‘zarjou’,‘sararoud’,‘sahra’,‘fajr30’,‘karoun’,‘gorgan’,‘makouei ’and ‘nosrat(’ under post anthesis water deficiency were studied. source limitation treatments were included that control, removing of awn, leaves below flag leaf, flag leaf and spike photosynthesis. all source limitati...

Background: For planning in health,preventing and representing valuable dentistry services, we need to identify and evaluate the information on the status of individuals' dental hygiene and health. In this examination, evaluating dental health which is one of hygienic main and key problems has been conducted according to world's standards in correction center of Tehran province in 2008.. Metho...

a survey was carried out in five provinces of iran (kerman, sistan and baluchestan, hormozgan, khorasan and yazd) for the presence of alfalfa mosaic virus (amv) sero-types in alfalfa during 2002 to 2003. the number of samples collected was 250, represent-ing the diversity and geographical distribution of amv in these areas. diagnosis was car-ried out using polyclonal (pabs) and monoclonal (mabs...