نتایج جستجو برای: viscose
تعداد نتایج: 517 فیلتر نتایج به سال:
Duschl et al. (2000) have shown that the standard model for geometrically thin accretion disks (α-disks) leads to inconsistency if self-gravity play a role. This problem arise from parametrization of viscosity in terms of local sound velocity and vertical disks scale hight. The β-viscosity prescription was introduced by Duschl et al. (2000), which has been derived from rotating shear flow exper...
This article presents an overview of our recent progress on the development of chelating materials. Carboxymethylated pentaethylenehexamine (CM-PEHA) and polyethyleneimine (CM-PEI) as chelating ligands show excellent performance for the solid-phase extraction of trace elements. Chelating resins immobilizing these ligands can be readily prepared by immobilizing PEHA and PEI on methacrylate resin...
In this article our latest advances in the development of efficient barrier systems against microand nano-particulate materials are presented. Nanofibrous polyamide 6 (PA6) mats were fabricated by electrospinning onto a nonwoven viscose substrate. The influence of electrospinning parameters including solution concentration, viscosity, and conductivity, were studied for the production of nonwove...
Objective: The goal of the present study was to evaluate spasticity variations by increase the velocity of motion and MAS value in the elbow flexor and extensor muscles at extension and flexion of CVA patients elbow joint according to the biomechanical indices. Materials & Methods: Fifteen adult patients with a history of stroke and upper-extremity spasticity volunteered to participate in th...
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