Using UV-VIS spectrophotometric method, the formation constant for interaction of Fe2+(aq) ion with L-Alaninewas experimentally studied at pH = 4.1 ± 0.01 (50mM of potassium hydrogen phthalate buffer), ionic strengthof 0.1M potassium nitrate and at 5 different temperatures 15,20, 25,30 and 35 T. The optical absorption spectraof mixtures containing considered cation and L-Alanine were analyzed b...

Cyclo(L-Lac-L-Val-D-Pro-D-Val)3 (PV-Lac) a structural analogue of the ion-carrier valinomycin, increases the cation permeability of lipid bilayer membranes by forming a 1:1 ion-carrier complex. The selectively sequence for PV-Lac is identical to that of valinomycin; i.e., Rb+ greater than K+ greater than Cs+ greater than or equal to NH+4 greater than Na+ greater than Li+. The steady-state zero-...

[1] This study quantifies the influence of ionization production mechanisms on ion escape and transport through near-Mars space. The Mars Test Particle simulation calculates the detailed ion velocity space distribution through a background magnetic and electric field model at specific locations. The main objective of this work is to extensively probe the sources of O ion escape relative to the ...

this paper is mainly focusing on the determination of mean molal activity coefficient of hcl in aqueous acidic medium. the present investigations have been carried out to determine the activity coefficients of hydrochloric acid in 2-propanol water mixture solutions under various conditions to study the ion solvent interactions in different temperatures. the standard molar potential em0 of the c...

The mechanism of polymerization of methacrylonitrile initiated by triethylphosphine in dimethylformamide and tetrahydrofuran was investigated. The elemental analysis has shown that phosphorus is chemically bound to the polymeric molecules. Analysis by NMR spectroscopy, as well as conductivity measurements, prove that the zwitter-ion structure is formed in the initiation process Monomer addition...

A general formula is derived for the potential energy of an ion in an ionic solution using all assumptions of the Debye-Hiickel theory except the assumption of constant permittivity. For the solvent the spatial correlation of polarization fluctuations is taken into account. The potential energy of an ion in it's ionic atmosphere is calculated for different models of the spatial correlation of p...

Lithium-ion (Li-ion) batteries play a substantial role in portable consumer electronics, electric vehicles and large power energy storage systems. For Li-ion batteries, developing an optimal charging algorithm that simultaneously takes rises time temperature into account is essential. In this paper, model predictive control-based proposed. This study uses the Thevenin equivalent circuit battery...

<span lang="EN-US">This paper proposes the design and simulation of a constant current/constant voltage (CC/CV) multi-power source lithium-ion (Li-ion) battery charging system based on Buck typology. The aim this new that uses converter with multiple numbers sources, is to provide sufficient energy for charging, an analog switch select active has priority guarantee continuity without inte...

Some CLC proteins function as passive Cl(-) ion channels whereas others are secondary active chloride/proton antiporters. Voltage-dependent gating of the model Torpedo channel ClC-0 is modulated by intracellular and extracellular pH, possibly reflecting a mechanistic relationship with the chloride/proton coupling of CLC antiporters. We used inside-out patch clamp measurements and mutagenesis to...

We report theoretical and experimental results on the radiation pattern of the ion acoustic waves below the ion cyclotron frequency from a small probe in a streaming magnetoplasma. In the fluid approximation with cold ions the ion acoustic resonance cones are found to be drastically changed. Experimental ray velocities and constant phase surfaces are in good agreement with the theoretical results.