Search
Now showing items 31-40 of 311
THz Fingerprints of Cement-Based Materials
(MDPI, 2020-09-21)
To find materials with an appropriate response to THz radiation is key for the incoming THz technology revolution. Unfortunately, this region of the electromagnetic spectra remains largely unexplored in most materials. The ...
Speed-up and slow-down of a quantum particle
(Nature Research, 2022)
[EN] We study non-relativistic propagation of Gaussian wave packets in one-dimensional Eckart potential, a barrier, or a well. In the picture used, the transmitted wave packet results from interference between the copies ...
Ultrafast entanglement switching and singlet-triplet transitions control via structured terahertz pulses
(IOP, 2022)
[EN] Terahertz (THz) vector beams with spatially textured polarization are proposed to steer the spin and spatial distributions of two interacting electrons in a quantum dot. We study theoretically the spatiotemporal ...
Composites poliméricos conductores y piezoresistivos integrados mediante procesos de fabricación avanzada.
(2021-06-15)
El objetivo principal de la Tesis es la obtención de la piezorresistividad en piezas de base polimérica impresa 3D mediante la fusión de filamento o tecnología de impresión 3D (Fused Deposition Modelling ¿ FDM). El logro ...
Tunnelling times, larmor clock, and the elephant in the room
(Nature Research, 2021-05-11)
[EN] A controversy surrounding the “tunnelling time problem” stems from the seeming inability of
quantum mechanics to provide, in the usual way, a definition of the duration a particle is supposed
to spend in a given ...
Unveiling Five Naked Structures of Tartaric Acid
(Wiley, 2021-08-02)
The unbiased, naked structures of tartaric acid, one of the most important organic compounds existing in nature and a candidate to be present in the interstellar medium, has been revealed in this work for the first time. ...
Analysis of Local and Global Aromaticity in Si3C5 and Si4C8 Clusters. Aromatic Species Containing Planar Tetracoordinate Carbon
(MDPI, 2021-09-25)
The minimum energy structures of the Si3C5 and Si4C8 clusters are planar and contain planar tetracoordinate carbons (ptCs). These species have been classified, qualitatively, as global (π) and local (σ) aromatics according ...
Shape of Testosterone
(American Chemical Society, 2021-07-29)
We have successfully characterized the structure of testosterone, one of the essential steroids, through high-resolution rotational spectroscopy. A single conformer has been detected, and a total of 404 transitions have ...
A comprehensive review of C-S-H empirical and computational models, their applications, and practical aspects
(Elsevier, 2022-06)
[EN] The C-S-H gel is an elusive material. Its variable composition and disordered nature complicate a complete characterization of its atomic structure, and the elaboration of models is key to understanding it. This work ...
Aurrerapenak MALDI-Imaging Masa-Espektrometria teknikan: ehunen lipidoak karakterizatzen
(2019-05-21)
a imagen por espectrometría de masas es u na técnica analítica que permite obtener la distribución espacial de diferentes analitos en superficies. El objetivo de IMS en bioquímica es la de detectar los constituyentes ...