نتایج جستجو برای: column experiment
تعداد نتایج: 520563 فیلتر نتایج به سال:
this thesis attempts to measure learning styles, self efficacy and intrinsic motivation as predictors of iranian ielts reading comprehension. in order to address this issue, a quantitative study was conducted on some randomly selected intact students at ferdowsi university. these two groups were assigned as they were undergraduate (ba=91) and graduate (ma =74) students; they were all aged betwe...
An introductory normal phase column chromatography experiment is described and evaluated for second year undergraduate chemistry laboratory class. The involves a nucleophilic substitution yielding crude mixture of reactant one product, both which are brightly colored contrasting, creating clearly visual separation when purified using chromatography. A student survey was conducted showed that 75...
background: cytoadherence of plasmodium falciparum - infected red blood cells to endothelial cells is an important mechanism for parasite survival and a major trigger for diseases pathology. here, we describe a new adhesion assay in which different cell types (cho, cho/cd36 and cho/icam-1) are attached to cytodex beads in a mini-column format to measure the relative sizes of various binding s...
The activity of photosynthesizing sulfur bacteria in a continuous culture was studied. The bacteria were isolated from the natural environment with the use of the Winogradski column. Isolated bacteria were cultured in synthetic medium and in the effluent from the column containig HS-. Sulphides, the main product of reduction of sulfates in phosphogypsum, were used by green sulfur bacteria in th...
Background and objectives: Perchloroethylene (PCE) is categorized as contaminant of concern because of its adverse health effects and persistence in drinking water resources. Permeable reactive barrier with zero valent iron (ZVI-PRB) is a passive zone in which chlorinated ethenes are degraded in situ through the chemical reduction mechanism. The objective of the present investigation was optimi...
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