Search results for "Fluids"

Synchronizing Two Superconducting Qubits through a Dissipating Resonator

2021

A system consisting of two qubits and a resonator is considered in the presence of different sources of noise, bringing to light the possibility of making the two qubits evolve in a synchronized way. A direct qubit–qubit interaction turns out to be a crucial ingredient, as well as the dissipation processes involving the resonator. The detrimental role of the local dephasing of the qubits is also taken into account.

Supercritical Antisolvent Extraction of Bioactive Compounds from Mango by-Products

2013

Spherically symmetric inhomogeneous cosmological models

2014

Tube transport of water vapor with condensation and desorption

2013

Attenuation and delay of active tracers in tube transport is an important current problem, but its full explanation is still lacking. To this end a model is introduced, where part of a tracer undergoes condensation and evaporation, treated as a diffusion-type process, in addition to Taylor dispersion. Condensation of water was verified by high-speed imaging, and the model solution fitted the breakthrough curves of laboratory measurements with pulses of water vapor of varying relative humidity. The model provides a transfer function whose performance was verified against field measurements. peerReviewed

Saliva in Food … How does it drive sensory perception?

2014

Saliva is a highly complex body fluid composed of many proteins, peptides, small organic molecules and ions. Saliva is produced and secreted by major and minor salivary glands to protect the mouth and to participate to the digestion. Generally distinction is made between resting saliva that is a result of autonomic stimulation, and stimulated saliva that is produced during chewing and taste stimulation. The link between saliva and sensory perception can be thus regarded through two main angles: the role of resting saliva as a background taste and the mechanistic role of saliva during eating. Indeed resting saliva (and its components) is continuously bathing our oral cavity and as such stimu…

Flavour & saliva interaction – a brief overview

2015

Saliva is a highly complex body fluid composed of many proteins, peptides, small organic molecules and ions. Saliva is secreted at rest and during eating by major and minor salivary glands. Resting saliva is continuously bathing our oral cavity and as such stimulates our taste receptors playing thus a role in taste sensitivity against some active taste substances. Beside, during eating, foods are chewed and a significant level of stimulated saliva is rapidly incorporated in the bolus. This in-mouth phenomena impact on flavor release and thus perception through saliva-food physical interactions but also through the action of biological compounds (enzymes mainly) against the food matrix. Sali…

Indistinguishability of Elementary Systems as a Resource for Quantum Information Processing.

2017

Typical elements of quantum networks are made by identical systems, which are the basic particles constituting a resource for quantum information processing. Whether the indistinguishability due to particle identity is an exploitable quantum resource remains an open issue. Here we study independently prepared identical particles showing that, when they spatially overlap, an operational entanglement exists which can be made manifest by means of separated localized measurements. We prove this entanglement is physical in that it can be directly exploited to activate quantum information protocols, such as teleportation. These results establish that particle indistinguishability is a utilizable …

Hydrogeochemical multi-component approach to assess fluids upwelling and mixing in shallow carbonate-evaporitic aquifers (Contursi area, southern Ape…

2023

With the aim of deepening our understanding of deep-seated fluids upwelling and mixing in large regional aquifers, we performed a hydrogeochemical study of twenty-two springs in the Contursi area (upper Sele river valley, southern Apennines) by means of the measurements of chemical-physical parameters, major ions, trace elements, and stable and radioactive isotopes. Besides, we realized two updated geo-structural cross-sections in order to reconstruct the groundwater flowpath in the study area. The hydrogeochemical composition, as well as the water temperature allow to identify-three main groups of groundwater: Cold and Low salinity Groundwater (CLGW), Intermediate Salinity Groundwater (ISG…

Assessment of the importance of neutron multiplication for tritium production

2016

Abstract One of the major requirements for a fusion power plant in the future is tritium self-sufficiency. For this reason the scientific community has dedicated a lot of effort to research activity on reactor tritium breeding blankets. In the framework of the international project DEMO, many concepts of breeding blanket have been taken into account and some of them will be tested in the experimental reactor ITER by means of appropriate test blanket modules (TBMs). All the breeding blanket concepts rely on the adoption of binary systems composed of a material acting as neutronic multiplier and another as a breeder. This paper addresses a neutronic feature of these kinds of systems. In parti…

Erosion, screening, and migration of tungsten in the JET divertor

2019

The erosion of tungsten (W), induced by the bombardment of plasma and impurity particles, determines the lifetime of plasma-facing components as well as impacting on plasma performance by the influx of W into the confined region. The screening of W by the divertor and the transport of W in the plasma determines largely the W content in the plasma core, but the W source strength itself has a vital impact on this process. The JET tokamak experiment provides access to a large set of W erosion-determining parameters and permits a detailed description of the W source in the divertor closest to the ITER one: (i) effective sputtering yields and fluxes as function of impact energy of intrinsic (Be,…