Buscador de Tesis y publicaciones académicas

What is the role of the high spin forms of the S2 and S3 states in water binding to the Mn4Ca cluster of Photosystem II?

Justin JOYCE · Rebeca GOMEZ CASTILLO · Maria CHRYSINA · Vinod PAIDI · y 1 más

Photosystem II of natural photosynthesis utilises the energy of sunlight to drive the four-electron oxidation of water to dioxygen at the oxygen-evolving complex (OEC). This harbours a Mn4CaO5 cluster that cycles through five oxidation states Si (i = 0–4). The critical S2→S3 transition, the last step before O2 formatio...

One-shot learning for the complex dynamical behaviors of weakly nonlinear forced oscillators

Teng Ma · Luca Rosafalco · Wei Cui · Lin Zhao · y 1 más

Extrapolative prediction of complex nonlinear dynamics remains a central challenge in engineering. This study proposes a one-shot learning method to identify global frequency-response curves from a single excitation time history by learning governing equations. We introduce MEv-SINDy (Multi-frequency Evolutionary Spars...

Influence of the magnetic anisotropy in the X-ray magnetochiral dichroism

Andrei ROGALEV · Mauro PERFETTI · Gemma Kate GRANSBURY

This proposal aims at studying the effect of single-ion magnetic anisotropy on X-ray magnetochiral dichroism (XMχD). The effect is closely related to the linear magneto-electric effect and described by orbital and spin toroidal current (anapole moments) in the absorbing atom that has no inversion symmetry. XMχD was suc...

Systemic safety analysis of complex socio-technical events: Insights from applying causal analysis based on systems theory and functional resonance analysis method

Edoardo Losi · Gulsum Kubra Kaya · Fanny Camelia · Mikela Chatzimichailidou · y 3 más

Orientation behavior of biocomposite samples under uniaxial strain.

Lorenzo METILLI · Narayanan THEYENCHERI · Samuel MANDIN · Frederic PIGNON · y 2 más

The orientational ordering of several biocomposite samples under uniaxial strain will be probed by SAXS.

ITABAG: 3D structures of macromolecules related to human health

Filippo VASCON · Igor MELNIKOV · Laura CENDRON · Massimo DEGANO

The ITABAG includes structural biologists from Universities, the National Research Council and Hospital research centres in Italy. The laboratories take advantage of single crystal and small angle X-ray diffraction methods to study the structure-function relationships in various macromolecules. A unifying factor for th...

Long-time stability and convergence analysis of an IMEX BDF3 scheme for the 2-D incompressible Navier-Stokes equation

Kelong Cheng · Jingwei Sun · Hong Zhang

High-order time-stepping schemes are crucial for simulating incompressible fluid flows due to their ability to capture complex turbulent behavior and unsteady motion. In this work, we propose a third-order accurate numerical scheme for the two-dimensional incompressible Navier-Stokes equation. Spatial and temporal disc...

Stochastic dual dynamic programming approach for cash-flow inventory problems with overdraft

Zhen Chen · Thomas W. Archibald

We examine a multi-product cash-flow inventory problem that accounts for lead times and uncertain demand. Our analysis includes a specific type of financing—overdrafts—where retailers facing cash constraints can leverage overdrafts to manage unexpected cash shortfalls. To address this issue, we propose a stochastic pro...

From optimizable to interactable: Mixed digital twin-empowered testing of vehicle-infrastructure cooperation systems

Jianghong Dong · Chunying Yang · Mengchi Cai · Chaoyi Chen · y 3 más

Sufficient testing under corner cases is critical for the long-term operation of vehicle-infrastructure cooperation systems (VICS). However, existing corner-case generation methods are primarily AI-driven, and VICS testing under corner cases is typically limited to simulation. In this paper, we introduce an L5 ''Intera...

Deep invertible autoencoders for dimensionality reduction of dynamical systems

Nicolò Botteghi · Silke Glas · Christoph Brune

Constructing reduced-order models (ROMs) capable of efficiently predicting the evolution of parameter-dependent high-dimensional dynamical systems is crucial in many applications in engineering and applied sciences. A popular class of projection-based ROMs projects the high-dimensional full-order model (FOM) dynamics o...