نتایج جستجو برای: soil micromorphological features
تعداد نتایج: 700709 فیلتر نتایج به سال:
Digital image processing (DIP) of bacterial smears is a new method of analysing the composition of the gut microbial flora. This method provides the opportunity to compare and evaluate differences in the complex highly concentrated anaerobic fraction of gut microbial flora, based on micromorphological differences. There is ample evidence that this fraction can be characterized as related or unr...
Micromorphological studies were carried out on the surfaces of the ZnS single crystals grown by chemical vapour transport (CVT). Different micromorphological patterns such as layers, steps, kinks, stripes and pits were observed using Scanning Electron Microscope. Formation of these patterns was correlated to the growth of crystals under theoretically predicted optimum and nonoptimum conditions.
In vivo reflectance confocal microscopy (RCM) is a modern, non-invasive imaging technique, which allows for real-time examination of the upper layers of the skin at a resolution similar to that of classic microscopy. In addition, it has the advantage of real-time evaluation of blood flow and dynamic monitoring of cutaneous changes while preserving tissue integrity. The present study reported on...
Micromorphological investigation of soils is a powerful tool for studying the transformation under influence various weathering mechanisms. In Arctic region, seasonal freezing/thawing processes, cryohydration leading type weathering. Soils different-aged islands Lena River Delta were investigated. Thin sections analyzed using polarizing microscope Leica DM750P (Leica Camera AG, Wetzlar, Germany...
BACKGROUND AND AIMS The importance of superficial root mats inside the forest floor for the nutrition of Amazonian rain forests has been extensively investigated. The present study was aimed at assessing the function of a root mat adherent to decomposing organic material observed in Eucalyptus plantations. METHODS The development of the root mat was studied through micromorphological observat...
Studies on the soils of western Golestan province show that regardless of increased rain and presence of clay minerals with high cation exchange capacity, potassium extractable with ammonium acetate is low. In order to find the reason for this low amount of available K, clay minerals and micromorphology of the soil porosity were studied. Twenty disturbed and undisturbed samples from each horizo...
in this study, we focused on detailed studies on micromorphological and mineralogical properties of three types of peat and swamp, to compare these different ecological area together. to achieve this goal, samples from a highland peat swamp (ghaleh-ghafeh ps), a peat swamp forest (suteh psf) and a costal swamp (galougah cs) in golestan province, north of iran have been considered. these studies...
The family Dermateaceae belongs to the Helotiales order, class Leotiomycetes, and consists of 14 genera. In this study, we introduce new genus Pseudoxenochalara gen. nov. family, which is supported by morphological observations multilocus phylogenetic analysis. Partial sequences loci encoding ?-tubulin (BenA), ribosomal polymerase II second largest subunit (RPB2), 28S rDNA (LSU) internal transc...
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