نتایج جستجو برای: membrane potential

تعداد نتایج: 1399807  

A.H. Galama H.V.M. Hamelers J.W. Post P.M. Biesheuvel, V.V. Nikonenko

A difference in salt concentration in two solutions separated by a membrane leads to an electrical potential difference across the membrane, also without applied current. A literature study is presented on proposed theories for the origin of this membrane potential (ϕm). The most well-known theoretical description is Teorell-Meyer-Sievers (TMS) theory, which we analyze and extend. Experimental ...

Journal: :Analytical Biochemistry 2018

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1391

abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...

Journal: :journal of chemical and petroleum engineering 2015
babak mokhtarani hossein khormaei mohammad hasan amini hamid reza mortaheb

liquid membrane processes have attracted many interests in recent years for removal of heavy metals such as cadmium from industrial wastewaters. in this study, a modified hybrid liquid membrane system is introduced. the setup is worked by applying the water-insoluble dioctyl phthalate as the organic solvent. n-octanol and tetra butyl ammonium bromide are added to the organic phase to increase t...

Membrane filtration, especially based on the size exclusion phenomenon, has long been established due to its abilities to addressing the growing demands of the clean water of the world’s population. However, widespread applications of the membranes face several challenges including chemical vulnerability, thermal deterioration, and biological degradation of the membranes that transpire while re...

Babak Mokhtarani, Hamid Reza Mortaheb Hossein Khormaei, Mohammad Hasan Amini

Liquid membrane processes have attracted many interests in recent years for removal of heavy metals such as cadmium from industrial wastewaters. In this study, a modified hybrid liquid membrane system is introduced. The setup is worked by applying the water-insoluble dioctyl phthalate as the organic solvent. N-octanol and tetra butyl ammonium bromide are added to the organic phase to increase t...

Babak Mokhtarani Hamid Reza Mortaheb Hossein Khormaei Mohammad Hasan Amini

Liquid membrane processes have attracted many interests in recent years for removal of heavy metals such as cadmium from industrial wastewaters. In this study, a modified hybrid liquid membrane system is introduced. The setup is worked by applying the water-insoluble dioctyl phthalate as the organic solvent. N-octanol and tetra butyl ammonium bromide are added to the organic phase to increase t...

Journal: :iranian journal of allergy, asthma and immunology 0
changbiao chen department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030 and department of respiratory, hannan district people's hospital of wuhan, wuhan 430030, china. ran wang department of respiratory, the first affiliated hospital of anhui medical university, hefei 230001, china. sijing zhou department of occupational medicine, third people's hospital of hefei, hefei 230001, china. jianping zhao department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030, china. yongjian xu department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030, china.

bronchial asthma is the common chronic inflammatory disease and is characterized by chronic airway inflammation, airway remodeling, and airway hyperreactivity (ahr). aim of this study was to investigate the effects of mitochondrial atp-sensitive potassium channels (mitokatp) on the proliferation and secretion of human airway smooth muscle cells (hasmcs). hasmcs were treated with the serum from ...

Journal: :journal of membrane science and research 0
a.h. galama wetsus, european centre of excellence for sustainable water technology, oostergoweg 9, 8911 ma leeuwarden, the netherlands j.w. post wetsus, european centre of excellence for sustainable water technology, oostergoweg 9, 8911 ma leeuwarden, the netherlands h.v.m. hamelers wetsus, european centre of excellence for sustainable water technology, oostergoweg 9, 8911 ma leeuwarden, the netherlands v.v. nikonenko membrane institute, kuban state university, 149 stavropolskaya str., 350040 krasnodar, russia p.m. biesheuvel wetsus, european centre of excellence for sustainable water technology, oostergoweg 9, 8911 ma leeuwarden, the netherlands

a difference in salt concentration in two solutions separated by a membrane leads to an electrical potential difference across the membrane, also without applied current. a literature study is presented on proposed theories for the origin of this membrane potential (ϕm). the most well-known theoretical description is teorell-meyer-sievers (tms) theory, which we analyze and extend. experimental ...

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