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Mostrando ítems 11-20 de 2254
Critical evaluation of direct and iterative methods for solving Ax=b systems in power flow calculations and contingency analysis
(Ieee-inst Electrical Electronics Engineers IncNew YorkEUA, 1999)
Rapid determination of zinc in foods by flow injection analysis with flame AAS using gradient calibration method
(2004-09-01)
A calibration method was developed using flow injection analysis (FI) with a Gradient Calibration Method (GCM). The method allows the rapid determination of zinc In foods (approximately 30 min) after treatment with ...
Use of diffusive gradients in thin films and tangential flow ultrafiltration for fractionation of Al(III) and Cu(II) in organic-rich river waters
(Elsevier B.V., 2007-08-15)
Diffusive gradients in thin films (DGT) and tangential-flow ultrafiltration (TF-UF) were combined for fractionation of Al and Cu in river water containing high content of dissolved organic carbon. A procedure based on ...
Use of diffusive gradients in thin films and tangential flow ultrafiltration for fractionation of Al(III) and Cu(II) in organic-rich river waters
(Elsevier B.V., 2007-08-15)
Diffusive gradients in thin films (DGT) and tangential-flow ultrafiltration (TF-UF) were combined for fractionation of Al and Cu in river water containing high content of dissolved organic carbon. A procedure based on ...
Flowrate independent 3D printed microfluidic concentration gradient generator
(Elsevier Science SA, 2020-02)
Christmas tree like microfluidic concentration gradient generators (MCGG) and other geometries as well, rely on molecular diffusion to achieve concentration gradients. This condition limits the flowrate in the case of ...