نتایج جستجو برای: high flux dialyzer
تعداد نتایج: 2123502 فیلتر نتایج به سال:
BACKGROUND Membranes fabricated from nominally similar polymers may be markedly different in chemical composition, morphology and geometry. To examine the relative importance of these factors to dialyzer performance, the removal of small and large uraemic toxins was determined for dialyzers containing 'polysulfone' membranes of different composition and morphology, with and without fibre undula...
background: miniature neutron sources with high neutron flux have abundant applications in medicine, industry and researches. the most important general characteristic of miniature neutron sources is their diameter which is 3mm in average. in this research, we have surveyed and designed an am-be miniature neutron source fabrication. materials and methods: this investigation resulted in creation...
the suitability of three vapor deposition techniques for pore size modification was evaluated using polycarbonate track etched membranes as model supports. a feature scale model was employed to predict the pore geometry after modification and the resulting pure water flux. physical vapor deposition (pvd) and pulsed plasma-enhanced chemical vapor deposition (pecvd), naturally, form asymmetric na...
When blood comes in contact with dialyzer membranes, the interfacial bioactivation reactions occurring at blood/membrane boundaries affect gross mechanisms related to thrombogenicity. In presence of biocompatible polymers, adhesion and subsequent interactions platelets, as well other serum components (e.g., proteins), are altered delay thrombus formation.
BACKGROUND AN69 dialyzer, a plate type dialyzer with a polyacrylonitrile membrane (PAN membrane) is reported to reduce symptoms in hemodialysis (HD) patients with complications such as poor nutritional status and peripheral arterial disease (PAD). Yet very few studies have investigated the long-term use of the PAN membrane or compared the solute-removal properties of the PAN membrane with those...
M any in the nephrology community were surprised when the Hemodialysis (HEMO) Study, completed in 2002, supported the null hypothesis for each intervention, suggesting ceiling effects for both the dose of dialysis and membrane permeability (1). Neither increases in the dose (expressed as the product of dialyzer urea clearance and dialysis time factored for patient size) nor an improvement in di...
The suitability of three vapor deposition techniques for pore size modification was evaluated using polycarbonate track etched membranes as model supports. A feature scale model was employed to predict the pore geometry after modification and the resulting pure water flux. Physical vapor deposition (PVD) and pulsed plasma-enhanced chemical vapor deposition (PECVD), naturally, form asymmetric na...
Introduction: The power transmission lines are the emission source of extremely low frequency (ELF) electromagnetic fields that are considered to have an adverse impact on human health. Therefore the aim of this study was to evaluate the amount of magnetic flux with extremely low frequencies (ELF) around high voltage power transmission lines in the western areas of Tehran in 2012. Material a...
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