Cuprous oxide (Cu2O) nanocubes were synthesized by reducing Cu(OH)2 in the presence of sodium citrate at room temperature. The samples were characterized in detail by field-emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray powder diffraction, and N2 absorption (BET specific surface area). The equations for acquiring ...

Surfactant-dye interactions are very important in chemical and dyeing processes. The dyes interact strongly with surfactant and show new spectrophotometric properties, so the UV-vis absorption spectrophotometric method has been used to study this process and extract some thermodynamic parameters. In this work, the association equilibrium between ionic dyes and ionic surfactant were studied by a...

The large amounts of data from molecular biology and neuroscience have lead to a renewed interest in the inverse Ising problem: how to reconstruct parameters of the Ising model (couplings between spins and external fields) from a number of spin configurations sampled from the Boltzmann measure. To invert the relationship between model parameters and observables (magnetizations and correlations)...

A physical inversion scheme has been developed dealing with cloudy as well as cloud-free radiance observed with ultraspectral infrared sounders to simultaneously retrieve surface, atmospheric thermodynamic, and cloud microphysical parameters. A fast radiative transfer model, which applies to the clouded atmosphere, is used for atmospheric profile and cloud parameter retrieval. A one-dimensional...

Thermodynamic parameters of configurons – elementary excitations resulting from broken bonds in amorphous materials – are found from viscosity-temperature relationships. Glass-liquid transition phenomena and most popular models are described along with the configuron model of glass transition. The symmetry breaking, which occurs as a change of Hausdorff dimension of bonds, is examined at glass-...

The aim of this paper is to outline new possibilities of more detailed thermodynamic analysis of helix coil transition parameters, particularly with respect to their splitting into energy and entropy terms. Because of difficulties with the ternary systems, water—organic solvent polypeptide, or, two organic solvents polypeptide, caused particularly by the phenomenon of specilic sorption of one s...

First and second partial derivatives of some thermodynamically defined rocket performance parameters are presented. Theae derivatives are useful for the extrapolation and interpolation of thermodynamic performance calculations for changes in combustion pressure, combustion enthalpy, pressure ratio, and area ratio. The accuracy of the extrapolation or interpolation is indicated for a typical pro...

The corrosion inhibition and adsorption (CIA) performance of the aqueous extracts of Aaronsohnia pubescens aerial parts (Odorized aqueous extract (OE) and Deodorized aqueous extract (DE)) on the corrosion mild steel (MS) in 1M hydrochloric acid were evaluated. It is based on the weight loss (WL) analysis, kinetic and thermodynamic parameters, and electrochemical methods both stationary (Potenti...

We show that intensive thermodynamic parameters associated to additive conserved quantities can be naturally defined from a statistical approach in far-from-equilibrium steady-state systems, under few assumptions, and without any detailed balance requirement. It may apply, e.g., to dissipative systems such as granular gases where volume or mass is still conserved or to systems with periodic bou...

Thermodynamics of 22 oligonucleotides with internal single G.A mismatches dissolved in 1 M NaCl were determined from absorbance versus temperature melting curves. These data, combined with five literature sequences, were used to derive nearest-neighbor thermodynamic parameters for seven linearly independent trimer sequences with internal G.A mismatches and Watson-Crick flanking base pairs. The ...