Iván Alonso

• PhD
• Profesor Titular Laboral at University of the Balearic Islands

The University of the Balearic Islands has committed to reducing carbon emissions by 50% by 2030 and achieving net-zero emissions by 2050 through the United Nations' Race to Zero campaign. The UIB has developed a comprehensive strategy to enhance energy efficiency, electrify demand, and deploy 7.1 MWp photovoltaic installations covering 113% of the...

This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves....

This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer (AI) prototypes and their potential for detecting ultralight dark matter and gravitational waves....

We summarise the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportunities offered by their deployment in space, and the developments needed before cold atoms could be operated in space. The cold atom technologies discussed include atomic...

RESUMEN El hidrógeno es un elemento esencial en la transición energética de la Unión Europea, donde las estimaciones indican que podría llegar a cubrir el 24% de la demanda final de energía de la UE para 2050. En una economía electrificada y basada en la generación renovable, el hidrógeno verde tiene el potencial de convertirse en una tecnología de...

We summarize the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportunities offered by their deployment in space, and the developments needed before cold atoms could be operated in space. The cold atom technologies discussed include atomic...

A new design for the use of photovoltaic and thermal (PV/T) technology with thermal storage is reported in this work. In the new design, a phase change material (PCM) tank is added to the backside of the photovoltaic panel. The advantages of this design are the storage of thermal energy and the efficiency improvement of the photovoltaic (PV) panel...

Atom laser and matter wave spectroscopy

Densities, ρ, and speeds of sound, u, of 2-heptanone + aniline + N-methylaniline or + pyridine systems have been measured at (293.15, 298.15 and 303.15) K and atmospheric pressure using a vibrating tube densimeter and sound analyzer. The ρ and u values were used to calculate excess molar volumes, V E, and the excess functions at 298.15 K for the sp...

Molar excess enthalpies, HmE, measured by means of a Tian-Calvet microcalorimeter, for the ternary system {1-propanol + N,N,N-triethylamine (TEA) + 2-butanone} at T = 298.15 K are reported. Values of HmE for the constituent binaries are available in the literature. The data are interpreted in terms of different interactional contributions to HmE. T...

A vibrating tube densimeter and sound analyzer Anton Paar model DSA-5000 has been used for the measurement of densities, ρ, and speeds of sound, c, of N-methylphenylamine (N-methylaniline) + heptane, or + cyclohexane, or + toluene mixtures at (293.15 to 303.15) K and atmospheric pressure. From these data, we have obtained excess molar volumes, VmE,...

Excess molar enthalpies, H-m(E), at 298.15 K and atmospheric pressure, have been measured, over the entire mole fraction range, by means of a Tian-Calvet microcalorimeter, for the systems: dipropylamine (DPA), or dibutylamine (DBA) + 2-propanone, + 2-butanone, + 2-pentanone, or + 2-heptanone. These data, together with those available in the literat...

Molar excess enthalpies, View the MathML sourceHmE, at 298.15 K and 0.1 MPa have been measured using a Tian–Calvet microcalorimeter for N ,N ,N -triethylamine (TEA) + 2-alkanone mixtures. These data have been used to determine ΔH N-CO, the enthalpy of the amine-ketone interaction, which is practically independent of the ketone size. This allows exp...

Liquid + liquid equilibrium (LLE) temperatures have been determined for the N-methylaniline + tetradecane, or +hexadecane systems by the method of the critical opalescence using a laser scattering technique. The coexistence curves have an upper critical solution temperature (UCST) and, due to size effects, are skewed towards high mole fractions of...

Linear alkanone or cyclohexanone + aromatic hydrocarbon mixtures have been studied using DISQUAC and the Kirkwood–Buff formalism. The aromatic compounds considered are: benzene, toluene, 1,4-dimethylbenzene, 1,2,4-trimethylbenzene and ethylbenzene. Vapour–liquid equilibria (VLE), molar excess Gibbs energies, GmE, molar excess enthalpies, HmE, and i...

Densities, ρ, and speeds of sound, u, of {2-heptanone+dipropylamine (DPA), +dibutylamine (DBA), or +triethylamine (TEA)} systems have been measured at (293.15, 298.15, and 303.15)K and atmospheric pressure using a vibrating tube densimeter and sound analyzer Anton Paar model DSA-5000. The ρ and u values were used to calculate excess molar volumes,...

Molar excess enthalpies, HmE, at 298.15 K and atmospheric pressure have been determined over the entire mole fraction range, using a Tian-Calvet microcalorimeter, for the systems: propanone, 2-butanone, 2-pentanone, or 2-heptanone + aniline or + N-methylaniline. The negative HmE values obtained for all of the mixtures reveal that interactions betwe...

Densities, ρ, and speeds of sound, u, of 2-pentanone+aniline, +N-methylaniline, or +pyridine systems have been measured at (293.15, 298.15 and 303.15) K and atmospheric pressure using a vibrating tube densimeter and sound analyzer Anton Paar model DSA-5000. The ρ and u values were used to calculate excess molar volumes, VmE, and the excess function...

The Flory model has been applied to linear or cyclic ether+benzene, or +toluene mixtures. In addition, the relative variation of the molar excess enthalpy, HmE, along homologous series of the considered systems, has been discussed taking into account the contributions to HmE from the ether–ether, aromatic–aromatic and ether–aromatic interactions. I...

Densities, ρ, and speeds of sound, u, of 2-butanone +dipropylamine, +dibutylamine or +triethylamine systems have been measured at (293.15, 298.15 and 303.15K) and atmospheric pressure using a vibrating-tube densimeter and sound analyser Anton Paar model DSA-5000. The ρ and u values were used to calculate excess molar volumes, VE, at the three tempe...

Densities, ρ, and speeds of sound, u, of 2-butanone + aniline, + N-methylaniline, or + pyridine systems have been measured at (293.15, 298.15, and 303.15) K and atmospheric pressure using a vibrating-tube densimeter and sound analyzer (Anton Paar model DSA-5000). The ρ and u values were used to calculate excess molar volumes, VE, and the excess fun...

Densities, ρ, and speeds of sound, u, of 2-propanone + dipropylamine, + dibutylamine or + triethylamine systems have been measured at (293.15, 298.15 and 303.15) K and atmospheric pressure using a vibrating tube densimeter and sound analyser Anton Paar model DSA-5000. The ρ and u values were used to calculate excess molar volumes, VE, and the exces...

Densities, ρ, and speeds of sound, u, of 2-propanone + aniline, + N-methylaniline, or + pyridine systems have been measured at (293.15, 298.15, and 303.15) K and atmospheric pressure using a vibrating tube densimeter and sound analyzer (Anton Paar model DSA-5000). The ρ and u values were used to calculate excess molar volumes, VE, and the excess fu...

The coexistence curves of the liquid−liquid equilibria (LLE) for (ε-caprolactam + heptane), (ε-caprolactam + octane), (ε-caprolactam + nonane), (ε-caprolactam + decane), and (ε-caprolactam + 2,2,4-trimethylpentane) have been determined by critical opalescence with a laser scattering technique. All the curves show an upper critical solution temperat...