نتایج جستجو برای: wet chemistry method
تعداد نتایج: 1753672 فیلتر نتایج به سال:
[1] To analyze and interpret the chemical record, the 2007 Phoenix Mars Lander includes four wet chemistry cells. These Wet Chemistry Laboratories (WCLs), part of the Microscopy, Electrochemistry, and Conductivity Analyzer (MECA) package, each consist of a lower ‘‘beaker’’ containing sensors designed to analyze the chemical properties of the regolith and an upper ‘‘actuator assembly’’ for addin...
Introduction: The initial in-situ chemical analysis of the four soil samples delivered to the Wet Chemistry Laboratory (WCL) provided concentrations of the soluble ionic species in the soil along with the pH and conductivity. Even though at first the results appeared to present a simple picture of the soluble soil chemistry , it has become clearly evident that the analyses were complicated by a...
The effect of post-treatment upon the H₂O adsorption performance of biomass-based carbons was studied under post-combustion CO₂ capture conditions. Oxygen surface functionalities were partially replaced through heat treatment, acid washing, and wet impregnation with amines. The surface chemistry of the final carbon is strongly affected by the type of post-treatment: acid treatment introduces a ...
sol–gel chemistry is an efficient tool to control the morphology and reactivity of solids. drying is the crucial step due to the capillary forces exerted during the classic ambient drying process, which induces the collapse of the wet gel porosity. the use of n, n-dimethylformamide (dmf), a newly found dcca were found to be effective in the sol–gel synthesis of crack-free silica gel monolith fr...
Abstract Background: Wet cupping is a traditional method of treatmentwhose actual mechanism and impact is not completely known yet in spite of its effect on the prevention and treatment of diseases. This research was conducted on Mice (BALB/C) in Hamedan’s University of Bu-Ali Sina on 2012 to determine the effect of one and two instances of wet cupping on hematology parameters. Materials and me...
Abstract. A new model system for mapping and forecasting nitrogen deposition to the Baltic Sea has been developed. The system is based on the Lagrangian variable scale transport-chemistry model ACDEP (Atmospheric Chemistry and Deposition model), and aims at delivering deposition estimates to be used as input to marine ecosystem models. The system is tested by comparison of model results to meas...
Using furosemide (FU) as a model drug, we examined the wet granulation method as a way to improve the taste masking and physical characteristics of orally disintegrating tablets (ODTs). In the wet granulation method, yogurt powder (YO) was used as a corrective and maltitol (MA) was used as a binding agent. The taste masked FU tablets were prepared using the direct compression method. Microcryst...
This project was concerned with using self-assembly methods of chemistry and biology to fabricate large structures such as telescope mirrors in space or on the moon or Mars. Both biological and non-biological self assembly methods were considered, as well as methods for coating the resulting structures with silver for the purpose of making mirrors. For biological self-assembly we explored metho...
Experimental data on precipitation chemistry were collected at a semi-arid savanna in Senegal (Dahra) 2013, 2014 and 2017. The chemical composition of was analyzed for inorganic organic ions, using ionic chromatography. pH values range from 4.50 to 8.50 with 89% the samples having basic pH. controlled by four source contributions: marine, terrigenous, biogenic, acids emissions vegetation. terri...
Litterfall has a large influence on carbon and nutrient cycling of ecosystems, particularly in light-limited forested streams, as most nutrients return the form litter. Although recent evidence points to prevalence seasonal litterfall species-rich evergreen tropical riparian forests, there is limited understanding how plant diversity intersects with stream ecosystem functions. To explore this q...
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