microbial calcium carbonate, by bridging sand particles, can play an important role in sand dune stability. a study was carried out on the cementation of sand grains and infilling of pore spaces by caco3. two bacterial species (sporosarcina pasteurii and sporosarcina ureae), three reactant concentrations (0.5, 1 and 1.5m), and six reaction times (12, 24, 48, 96, 192 and 288 hours) were tested i...

abstract in order to assess the availability of phosphorous (p), different methods have been proposed in the last decades. the results of these methods in soils with various ph, calcium carbonate, organic matter, al and fe oxides and hydroxides and other properties especially in iranian soils can not be used. in addition, knowledge about transformation of p forms is necessary for perception of ...

PurposeIn modern radiotherapy techniques, to ensure an accurate beam modeling process, dosimeters with high accuracy and spatial resolution are required. Therefore, this work aims propose a simple, robust, small-scale fiber-integrated X-ray inorganic detector investigate the dosimetric characteristics used in radiotherapy.MethodsThe is based on red-emitting silver-activated zinc-cadmium sulfide...