Results 21 to 30 of about 4,324,061 (331)

Mathematical modelling of space charge breakdown in membrane systems taking into account the non-catalytic dissociation/ recombination reaction of water molecules [PDF]

open access: yesE3S Web of Conferences, 2020
In electromembrane systems, a theoretical study of salt ion transfer usually uses mathematical models of salt ion transfer in the depleted diffusion layer of ion-exchange membranes.
Gudza V   +3 more
doaj   +1 more source

De Novo Ion-Exchange Membranes Based on Nanofibers

open access: yesMembranes, 2021
The unique functions of nanofibers (NFs) are based on their nanoscale cross-section, high specific surface area, and high molecular orientation, and/or their confined polymer chains inside the fibers.
Shaoling Zhang   +2 more
doaj   +1 more source

Protein Purification: Ion Exchange

open access: yesBioTechniques, 2010
This month's question from the Molecular Biology Forums (online at molecularbiology.forums.biotechniques.com) comes from the “Protein Methods” section. Entries have been edited for concision and clarity.
Kristie Nybo
doaj   +1 more source

History, Introduction, and Kinetics of Ion Exchange Materials

open access: yesJournal of Chemistry, 2013
During the last few decades, ion exchange materials have evolved from laboratory tool to industrial products with significant technical and commercial impact.
Sanjeev Kumar, Sapna Jain
doaj   +1 more source

The enhanced catalytic activity of Cu/SAPO-34 by ion exchange method for selective catalytic reduction of nitric oxide

open access: yesMaterials Research Express, 2021
The Cu/SAPO-34 catalysts were prepared via the ion exchange process for achieving improved catalytic activity. Effects of various parameters including copper ions sources, copper ions loadings and ion exchange temperature on catalyst performance of the ...
Dapeng Wang, Zhaokun Li, Chengwen Song
doaj   +1 more source

Charge-exchange collisions between ultracold fermionic lithium atoms and calcium ions [PDF]

open access: yesPhysical Review A 91, 032709 (2015), 2014
Charge exchange collisions between ultracold fermionic 6Li atoms and 40Ca+ ions are observed in the mK temperature range. The reaction product of the charge exchange collision is identified via mass spectrometry during which the motion of the ions is excited parametrically.
arxiv   +1 more source

Study of the Electrical Conductivity of Ion-Exchange Resins and Membranes in Equilibrium Solutions of Inorganic Electrolytes

open access: yesMembranes, 2022
The study of the electrical conductivity of ion-exchange membranes in equilibrium electrolyte solutions is of great importance for the theory of membrane processes, in particular for practical electrodialysis.
Oleksandr Petrov   +6 more
doaj   +1 more source

Removal of Heavy Metal Particles by LTJ, ANA, SVR, BEC and MER zeolites particles: A Molecular Dynamics Simulation Study [PDF]

open access: yesJournal of Particle Science and Technology, 2015
In present study, molecular dynamics simulation of Cadmium (II), Lead (II) and Copper (II) removal from aqueous electrolyte solutions using the ion-exchange process with the zeolite particles was done.
Mohsen Mehdipour Ghazi   +2 more
doaj   +1 more source

Amberlite IRC-718 ion chelating resin extraction of hazardous metal Cr (VI) from aqueous solutions: equilibrium and theoretical modeling

open access: yesWater Science and Technology, 2021
Under varied conditions, the IRC 718 ion-exchange resin is used to extract chromium (VI) ions from aqueous solutions. On chromium (VI) removal effectiveness, the effects of adsorption dosage, contact time, beginning metal concentration, and pH were ...
Abdelhamid Addala   +4 more
doaj   +1 more source

Rapid Exchange Cooling with Trapped Ions [PDF]

open access: yes, 2023
The trapped-ion quantum charge-coupled device (QCCD) architecture is a leading candidate for advanced quantum information processing. In current QCCD implementations, imperfect ion transport and anomalous heating can excite ion motion during a calculation. To counteract this, intermediate cooling is necessary to maintain high-fidelity gate performance.
arxiv   +1 more source

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