Sfoglia Area Scienze chimiche, fisiche, matematiche per Titolo
Items 66-85 di 272
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Dissipation, mixing and two level system in quantum field theory
(Universita degli studi di Salerno, 2012-04-30)In this dissertation we discuss several aspects of a two level system (qubit) in the context of quantum mechanics and quantum field theory. The presence of geometrical phases in the evolution of a qubit state is shown. We ... -
DIST-M: script collaborativi computer-based per mediare l'argomentazione in matematica
(Universita degli studi di Salerno, 2017-05-05)Questa tesi è parte di una ricerca che mira a comprendere se sia possibile utilizzare, nell'ambito dell'educazione matematica, una piattaforma di e-learning per realizzare un insegnamento basato sulla mediazione e ... -
Dynamical control of engineered stimuli-responsive materials: synthesis and optimization of active micro-vesicles
(Universita degli studi di Salerno, 2020-02-14)The aim of this PhD project is the combination of a pH clock reaction (the enzymatic urea-urease reaction) with pH-responsive materials to generate a chemo-mechanical coupling. A clock reaction is characterized by a ... -
Effect of thermo wood modification and polyoxometalates catalysts on yield and extractives composition
(Universita degli studi di Salerno, 2019-02-06)The aims of this work were to investigate the impact of the heat treatment on the chemical composition (holocellulose, lignin and extractives) of different wood species, to characterise and quantify wood extractives and ... -
Efficient distributed load balancing for parallel algorithms
(Universita degli studi di Salerno, 2011-04-29)With the advent of massive parallel processing technology, exploiting the power offered by hundreds, or even thousands of processors is all but a trivial task. Computing by using multi-processor, multi-core or many-core ... -
Electical properties of pure and Co-substituted ZnO thin films investigated by UV-assisted SPM experiments
(Universita degli studi di Salerno, 2018-06-28)ZnO is an intrinsic n-type, wide band-gap (3.4 eV at 0 K), semiconductor which has been attracted the interest of the scientific community for several decades. More recently, ZnO has caught a renewed interest due to the ... -
Electric transport properties of S/F hybrids: weak and inhomogenous ferromagnet
(Universita degli studi di Salerno, 2012-03-30)Superconductivity (S) and ferromagnetism (F) are competing phases whose coexistence is unlikely to occur. Exceptions require a non−uniform profile both for the pairing and the magnetization, as in the case of the FFLO ... -
Electrical and thermal transport properties of superconducting materials relevant for applications
(Universita degli studi di Salerno, 2018-07-06)Superconducting materials are used in several applications among which the large-scale ones take advantage of the high energy transport capabilities of superconductors due to the low losses in electrical conduction. From ... -
Electron-electron and electron-phonon interactions in strongly correlated systems
(Universita degli studi di Salerno, 2013-04-29)In this work we investigate some aspects of the physics of strongly correlated systems by taking into account both electron-electron and electron-phonon interactions as basic mechanisms for reproducing electronic ... -
Elliptic Operators with Unbounded Coefficients
(Universita degli studi di Salerno, 2017-04-28)Aim of this manuscript is to give generation results and some Hardy inequalities concerning elliptic operators with unbounded coefficients of the form Au = div(aDu) + F ·Du + V u where V is a real valued function, a(x) = ... -
Enantioselective construction of new heterocyclic scaffolds via organocatalyzed cascade reactions
(Universita degli studi di Salerno, 2019-02-04)Chirality plays a vital role in human daily life. After the famous but tragic case regarding the Thalidomide, Food and Drug Administration (FDA) gave a guide in relation to the submission of new drug applications... [edited ... -
Environmental and catalytic applications of alkaline oxides
(Universita degli studi di Salerno, 2015-04-20)Alkaline oxides are widely used in industrial processes involving removal of gaseous compounds as unwanted by-products such as CO2, hydrogen sulphide and nitric oxides. Traditional processes generally involve Ca-based ... -
Enzymatic synthesis of macrolactones
(Universita degli studi di Salerno, 2011-02-24)Macrolactones are a large and structurally diverse class of compounds. Natural products having a macrolactone structure have been isolated from many natural sources such as plants, insects, marine organism and bacteria. ... -
Estimates for the transition kernel for elliptic operators with unbounded coefficients
(Universita degli studi di Salerno, 2023-02-09)This manuscript is devoted to the study of the qualitative behaviour of the solutions of evolution equations arising from elliptic and parabolic problems on unbounded domains with unbounded coefficients. In particular, ... -
Event triggering and deep learning for particle identification in KM3NeT
(Universita degli studi di Salerno, 2018-04-11)Neutrino astronomy experiments like KM3NeT allow to survey the Universe leveraging the properties of neutrinos of being electrically neutral and weakly interacting particles, making them a suitable messenger. Observing ... -
Exact solutions in general relativity and alternative theories of gravity: mathematical and physical properties
(Universita degli studi di Salerno, 2011-06-06)In this thesis, we discuss several subjects connected with the framework of GR, in order to characterize astrophysical compact objects. The main purpose is to provide simple models describing gravitational fields generated ... -
Exploring the transport properties of quantum systems on different lenght scales
(Universita degli studi di Salerno, 2021-11-10)In this thesis, after introducing some theoretical aspects of Mott insulators, pure single crystals of the Mott insulator Ca2RuO4 was investigated from an experimental point of view. The surprisingly low current density ... -
Fabrication of graphene based devices and study of their electrical and optical properties
(Universita degli studi di Salerno, 2013-05-13)This work is dedicated to investigate the unique and excellent electrical and optical properties of graphene, through the fabrication and experimental study of several graphene based devices. Particular attention is paid ... -
Flavor mixing in quantum field theory and quantum information
(Universita degli studi di Salerno, 2011-05-10)After reviewing the formalism for describing flavor mixing, both in Quantum Mechanics and Quantum Field Theory, some consequences along three different directions are studied. First, it is proposed that flavor mixing can ... -
Fluorescence-based sensors for the detection of biologically and environmentally relevant molecules
(Universita degli studi di Salerno, 2016-03-15)Hydrogen sulfide (H2S) has been known for long time as a toxic molecule in biological systems. More recent studies have shown that mammals can produce H2S in a controlled fashion, suggesting that it’s important in maintaining ...