نتایج جستجو برای: soil mineralogy
تعداد نتایج: 184575 فیلتر نتایج به سال:
Most of the approaches to solve the unmixing problem are based on the Linear Mixing Model (LMM) which is questionable. Therefore, nonlinear spectral model is generally used to study the effects of multiple scattering in the complex surfaces. In this paper, we have demonstrated the application of Radiative Transform Equation (RTE) based Hapke multi scattering model. The Hapke model based non-lin...
One of the potential environmental effects of the recent rapid increase in the global agricultural area cultivated with transgenic crops is a change in soil microbially mediated processes and functions. Among the many essential functions of soil biota are soil organic matter decomposition, nutrient mineralization and immobilization, oxidation-reduction reactions, biological N fixation, and solu...
II. Polarizing light microscope and geological samples III. Refractive index and its measurement IV. Optical classes-indicatrix theory V. Relationship of optical properties to crystal chemistry VI. Advanced methods in optical mineralogy GLOSSARY anisotropic mineral: A mineral with more than one principal refractive index. birefringence: The mathematical difference between the largest and smalle...
Mineralogy, zinc kinetic adsorption and sequential extraction of contaminated soil in Manaus, Amazon
Cropland soils are key systems in global carbon budgets due to their high carbon-sequestration potential. It is widely accepted that clays one of the soil components have a significant effect on stabilisation organic (SOC), owing its surface interactions with molecules. However, identification direct effects SOC stabilization complicated, mainly difficulty accurately characterizing mineralogy c...
INTRODUCTION The precise trigger of podoconiosis - endemic non-filarial elephantiasis of the lower legs - is unknown. Epidemiological and ecological studies have linked the disease with barefoot exposure to red clay soils of volcanic origin. Histopathology investigations have demonstrated that silicon, aluminium, magnesium and iron are present in the lower limb lymph node macrophages of both pa...
A multi-user integrated suite of instruments designed to optimize the search for evidence of life on Mars is described. The package includes: -Surface inspection and surface environment analysis to identify the potential Mars landing sites, to inspect the surface geology and mineralogy, to search for visible surficial microbial macrofossils, to study the surface radiation budget and surface oxi...
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