Authors:Ekhlas H. Karam, Noor S. Abdul-Jaleel, and Basma J. Salah
systems [ 1 ]. Higher order systems can be found in multifarious industries such as oil, cement, chemical, pharmaceutical, aircraft system, atomic nuclear plant, flexible robot manipulator [ 3 ], quadrotor with a variable degree of freedom (DOF) [ 4
Authors:Aqsa Yousaf, Tahira Shehzadi, Aqeel Farooq, and Komal Ilyas
is that a good and accurate prediction can lead to the flourishing of the pharmaceutical industry as a compound can be created globally. Moreover, lives can be saved from the created drug compound accordingly.
Late diffusion or selective diffusion through polymeric membranes has various applications in separation processes, environmental protection, pharmaceutics for drug delivery systems, etc. The aim of this work is to present the results of some ions diffusion through poly(vinyl alcohol) [PVA] hydrogel membranes, obtained by freeze-thaw technique. The diffusion of potentially toxic ions -Pb(II)- and of alkaline ions like Na+ and K+ is tested using conductometry, flame photometry and atomic absorption spectrometry. The membrane permitivitty is calculated for every ionic species and the opportunity is studied to use these membranes in environmental protection, for waste water purification. The modifications of the PVA structure have been made by mixing the PVA solution with some natural products (beta-cyclodextrine or chitosan) or by compounding PVA hydrogel with Cu2+.
Authors:Michal Marton, Ján Ilavský, and Danka Barloková
1 Introduction The term micro-pollutants can refer to a variety of substances and molecules. It usually includes chemicals from industries, pharmaceuticals and personal care products, pesticides, hormones, endocrine disruptors, fragrances and drugs