نتایج جستجو برای: size separation
تعداد نتایج: 669985 فیلتر نتایج به سال:
This paper introduces a variable step-size adaptive algorithm for blind source separation. From frequency characteristics of mixed input signals, we need to adjust the convergence speed regularly in each frequency bin. This algorithm varies a step-size according to the magnitude of input at each frequency bin. This guarantee of the regular convergence in each frequency bin would become more eff...
The generation of single-stranded DNA (ssDNA) from double-stranded PCR products is an essential step in the selection of aptamers by systematic evolution of ligands by exponential enrichment (SELEX). Magnetic separation with streptavidin-coated beads is always the most commonly used method. Recently, two size separation methods derived from unequal primers with chemical or structural modificati...
The performance of an optimized tree-type cylindrical-shaped nanoporous fltering membrane proposed in the former study is analytically investigated for varying operational parameter values. Across the membrane thickness, this membrane has two-leveled tree-structured pores including one trunk pore and the multiple branch pores. The physical properties of the surfaces of ...
Abstract Liposomes are used widely as drug delivery systems in different forms including nanosuspensions, osmotic pumps, infusion pumps and IV injections. Some of these systems (e.g. infusion or osmotic pumps) might stay stagnant for a long time during or before administration, and therefore, might face phase separation. In spite of these, there is no data available about the behavior of lipos...
Abstract Liposomes are used widely as drug delivery systems in different forms including nanosuspensions, osmotic pumps, infusion pumps and IV injections. Some of these systems (e.g. infusion or osmotic pumps) might stay stagnant for a long time during or before administration, and therefore, might face phase separation. In spite of these, there is no data available about the behavior of lipos...
در این مطالعه روشی ساده و قابل اعتماد برای جداسازی و پیش تغلیظ مقادیر کم اورانیم )vi( ه وسیله استخراج فاز جامد توسعه داده شده است.برای این منظور ستونی از آلومینای اصلاح شده با سدیم دودسیل سولفات )sds( و 8-هیدروکسی کینولین (اکسین) برای استخراج اورانیم )vi( از نمونه های آبی استفاده شد. شرایط تجربی برای جذب موثر اورانیم بهینه شدند.
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