Št. zadetkov: 14
Doktorska disertacija
Oznake:
quantum mechanics;quantum computation;electrons;quantum dots;quantum rings;spin-orbit coupling;Rashba coupling;qubits;qubit transformations;
Spin-charge states in the presence of spin-orbit coupling
Leto:
2016
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
gorivne celice;Ostwaldovo zorenje;modeliranje;staranje platine;fuel cells;Ostwald ripening;modeling;theory;platinum degradation;
The limited durability of hydrogen fuel cells is one of the main obstacles in their wider adoption as a clean alternative technology for small scale electricity production. The Ostwald ripening of catalyst material is recognized as one of the main unavoidable degradation processes deteriorating the ...
Leto:
2019
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
kvantna mehanika;kubitne transformacije;kvantni obroči;Rashbova sklopitev;periodični potencial;quantum mechanics;qubit transformations;quantum rings;Rashba coupling;periodic potential;
A spin-qubit transformation protocol is proposed for an electron in a mesoscopic quantum ring with tunable Rashba interaction controlled by the external electric field. The dynamics of an electron driven around the ring by a series of Landau–Zenner-like transitions between a finite number of local v ...
Leto:
2020
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
fuel cells;membrane;degradation;hydrogen peroxide;modelling;
Degradation of electrode-membrane assembly of the low-temperature hydrogen fuel cells represents one of the main obstacles in wider adoption of these clean and efficient electrochemical sources of electrical energy. Chemical degradation of proton exchange membrane is initiated by hydrogen peroxide f ...
Leto:
2023
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
aglomeracija;katalitična plast;degradacija;gorivne celice;visokotemperaturne;modeliranje;Ostwaldovo zorenje;podprti katalizator;agglomeration;catalyst layer;degradation;fuel cells;high temperature;modeling;Ostwald ripening;supported catalyst;
The degradation of the catalyst layer represents one of the main limiting factors in a wider adoption of fuel cells. The identification of the contributions of different mechanisms of catalyst degradation, namely the Ostwald ripening and particle agglomeration, is an important step in the developmen ...
Leto:
2020
Vir:
Fakulteta za strojništvo (UL FS)
Objavljeni znanstveni prispevek na konferenci
Oznake:
fuel cells;proton exchange membrane;modelling;electrochemical impedance spectroscopy;parametrisation in time and frequency domain;diagnostic and control applications;
Successful parametrization and re-parametrization of the models used in PEMFC observer applications is instrumental to assure ideal control of the system. To increase ease of parametrisation and accuracy of parameter determination, this paper presents framework of twin analytical ansatzes for modell ...
Leto:
2020
Vir:
Fakulteta za strojništvo (UL FS)
Objavljeni znanstveni prispevek na konferenci
Oznake:
gorivne celice;protonska izmenjevalna membrana;visoko temperaturna PEM gorivna celica;modeliranje;napovedovanje;degradacija platine;fuel cells;high temperature;proton exchange membrane;modelling;predictive;platinum degradation;
High temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) are a promising and emerging technology that allow for highly efficient low emission small scale electricity and heat generation. Simultaneous reduction of production costs and prolongation of the service life is considered as a si ...
Leto:
2019
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
fuel cells;proton-exchange membrane;high temperature;modeling;platinum degradation;
High temperature proton exchange membrane fuel cells (HT-PEMFCs) are a promising and emerging technology, which enable highly efficient, low-emission, small-scale electricity and heat generation. The simultaneous reduction in production costs and prolongation of service life are considered as major ...
Leto:
2020
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
fuel cells;PEMFC;modelling;educational approach;scale-bridging;
The use of hydrogen fuel cells as a mobile source of electricity could prove key to the future decarbonisation of heavy-duty road and marine transportation. Due to the complex interplay of various physicochemical processes in fuel cells, further development of these devices will depend on concerted ...
Leto:
2023
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
fuel cells;electrochemical impedance spectroscopy;analytical solution;parametrisation;realtime capable;modelling;
Electrochemical impedance spectroscopy (EIS) is a very powerful tool for the diagnosis and characterisation of fuell cells (FC). However, there is still a lack of physico-chemically consistent models that include parameters with a clear physical meaning and can be related to intrinsic parameters of ...
Leto:
2023
Vir:
Fakulteta za strojništvo (UL FS)