نتایج جستجو برای: separation and normalization
تعداد نتایج: 16845851 فیلتر نتایج به سال:
Background and objectives: Chromatography fingerprinting is considered as a comprehensive method for quality control, diagnosis and the nature of herbal drugs, and it is important to classify the different samples of medicinal plants and determine the chemical species present in them. Methods: In this research, a new strategy based on the combination of multiva...
We show that the entire cyclic cohomology of Banach algebras defined by Connes has the simplicial normalization property. A key tool in the proof is the notion and properties of supertraces on the Cuntz algebra QA. As an example of further applications of this technique we give a proof of the homotopy invariance of entire cyclic cohomology.
This work was aimed to evaluate and compare the performances of the solvents D2EHPA (Di-(2-ethylhexyl) phosphoric acid), Cyanex 272 (bis (2,4,4-trimethylpentyl) phosphinic acid), and a mixture system of D2EHPA and Cyanex272 in the separation of some rare earth elements (REEs) including lanthanum, gadolinium, neodymium, and dyspersym from a nitric acid solution. The results obtained showed that ...
A general version of the fundamental theorem for System F is presented which can be instantiated to obtain proofs of weak βand βη-normalization and normalization by evaluation.
This field study was conducted on 60 women who working in related centers of Universities of Medical Sciences in Tehran. Data gathering tool was maternal separation anxiety questionnaire that designated by Hock & et al. (1982). Findings revealed that majority of the research units (71.7%), have high degree of maternal separation anxiety. Mean degree of maternal separation anxiety was (21.22±3....
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