Complex permittivity of a number of liquids and binary mixtures has been studied by measurement using the waveguide techniques at the X and Ku band. Particular pieces of WR90 and WR62 waveguides were designed for the measurement of liquid materials. The custom designed TRL calibration kits are applied for calibration of the waveguide system. The measured results of complex permittivity of liqui...

Based on biologically inspired algorithms, a thermodynamic model to describe the vapor-liquid equilibrium of binary complex mixtures containing supercritical fluids and ionic liquids, is presented. The Peng-Robinson equation of state with the Wong-Sandler mixing rules are used to evaluate the fugacity coefficient on the systems. Then, a hybrid particle swarm-ant colony optimization was used to ...

Porous carbon materials with high specific surface areas and superhydrophobicity have attracted much research interest due to their potential application in the areas of water filtration, water/oil separation, and oil-spill cleanup. Most reported superhydrophobic porous carbon materials are fabricated by complex processes involving the use of catalysts and high temperatures but with low through...

Peculiarities in the physical properties of hydroxylic compounds result essentially from the molecular ordering due to hydrogen bond formation. In case of diols, which are among the most self-associated liquids, the structure of the intermolecular entities depends mainly on the mutual position of OH groups within the hydrocarbon chain of the molecule. Diols are widely used in industry, mainly b...

Epoxy resin is a versatile high-performance thermosetting material with attractive properties for many engineering applications. However, epoxy resins may come into contact various chemical liquid environments while in service which can degrade their mechanical and deteriorate performance. Water diffusion well-studied; however, little research has been reported on the mechanisms of other liquid...

An exploratory study of the synthesis of vanadium (oxy)fluorides (VOFs) using ionic liquids (ILs) and deep eutectic mixtures (DESs) as a solvent yielded 10 different materials. The previously reported chain type: (NH(4))(2)VF(5) (1), (NH(4))(2)VOF(4) (2), NH(4)VO(3) (3) and (H(2)NH(2)(CH(2))(2)NH(2))VF(5) (9) have been successfully produced for the first time using ILs as the reaction media. Th...

In this study we investigated the chemical-physical properties of mixtures containing the protic ionic liquid (PIL) N-butyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide (PYRH4TFSI), propylene carbonate (PC) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in view of their use as electrolytes for lithium-ion batteries (LIBs). We showed that these electrolytic solutions might display c...

six species of sargassum c. agardh (sargassaceae) with compressed primary branches, including: s. binderi sonder, s. aquifolium (turner)c. agardh, s. oligocystum montagne, s. swartzii (turner)c. agardh, s. crassifolium j. agardh and s. cristaefolium c. a. agardh, were identified in the persian gulf and oman sea coasts, among which s. binderi is reported as newly recorded species in iran for the...

Basic equilibrium properties of lattice Boltzmann (LB) fluid mixtures (coexistence curve, surface tension, interfacial profile, correlation length) are calculated to characterize the critical phenomena occurring in these model liquids and to establish a reduced variable description allowing a comparison with real fluid mixtures. We observe mean-field critical exponents and amplitudes so that th...

A thermodynamic modeling for the vapor–liquid equilibrium of binary systems of supercritical fluids and ionic liquids is presented. The van der Waals mixing rules and a cubic equation of state are used to evaluate the fugacity coefficient on the systems. Then, a particle swarm algorithm was used to minimize the difference between calculated and experimental bubble pressure, and calculate the in...