نتایج جستجو برای: extensive variety of alteration
تعداد نتایج: 21171214 فیلتر نتایج به سال:
In these notes we give a brief introduction to Kolmogorov complexity. The notes are based on the two talks given at KAM Spring School, Borová Lada, 2006.
Understanding the climatic characteristics of a region plays a key role in sustainable development. The Esfahan province is extensive this factor has caused it variety climates. The regionalization climate of Esfahan has conducts with new methods of regionalization such as factor analysis and cluster analysis. The 25 variables have been selected from 12 stations for this purpose. The investigat...
Introduction: Although some CR chondrites are recognized to be among the most pristine meteorites [1], other members of this group are heavily hydrated [e.g. 2]. However, no evidence of thermal metamorphism has been documented for this group. Antarctic fall GRA 06100, initially classified as a CR2 chondrite have not been previously studied. We use optical microscopy, SEM, and focused beam EPMA ...
The chemical forms of phosphorus (P) in sediments are routinely measured in studies of P in modern and ancient marine environments. However, samples for such analyses are often exposed to atmospheric oxygen during storage and handling. Recent work suggests that long-term exposure of pyrite-bearing sediments can lead to a decline in apatite P and an increase in ferric Fe-bound P. Here, we report...
The volcanic rocks of Silurian in Khosh yeylagh are located in eastern Alborz structural zone, east of Golestan Province. This volcanic mass is significantly affected by hydrothermal alteration. Propylitic alteration is the most dominant alteration in this area. Based on field observation and X-Ray diffraction studies, four alteration zones of chlorite, epidote, albite and hematite are recogni...
any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...
in the past 40 years there has been drastic increase in the prevalence of obesity worldwide (1). This rapid increase in the prevalence of obesity is not a matter of physiologic or metabolic alteration within people. Thousands of scientific papers are published each year indicating that pharmaceutical companies are working to find possible money making antiobesity agents. Increasing in the preva...
Aluminophosphate-5 (AlPO4-5) nano-pore zeolite was synthesized. The effect of alteration in precursor gel preparation on the morphology of zeolite was studied. The effect of variety of synthesis conditions on the purity, crystal and pore size, and crystallinity of AlPO4-5 zeolite been studied. A hydrothermal synthesis has been used to produce nano-pore Aluminophosphate-5 c...
Aluminophosphate-5 (AlPO4-5) nano-pore zeolite was synthesized. The effect of alteration in precursor gel preparation on the morphology of zeolite was studied. The effect of variety of synthesis conditions on the purity, crystal and pore size, and crystallinity of AlPO4-5 zeolite been studied. A hydrothermal synthesis has been used to produce nano-pore Aluminophosphate-5 c...
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