Search results for "BAND"
showing 10 items of 2610 documents
Largescale available bandwidth measurements: Shortcomings of current techniques
2009
available bandwidth
Gamma Oscillations in the Temporal Pole Reflect the Contribution of Approach and Avoidance Motivational Systems to the Processing of Fear and Anger W…
2022
Prior reports suggest that affective effects in visual word processing cannot be fully explained by a dimensional perspective of emotions based on valence and arousal. In the current study, we focused on the contribution of approach and avoidance motivational systems that are related to different action components to the processing of emotional words. To this aim, we compared frontal alpha asymmetries and brain oscillations elicited by anger words associated with approach (fighting) motivational tendencies, and fear words that may trigger either avoidance (escaping), approach (fighting) or no (freezing) action tendencies. The participants’ task was to make decisions about approaching or dis…
Doping induced stable room temperature dual emission from gadolinium doped vacancy ordered double halide perovskite, Gd:Cs2SnCl6
2022
The recent advancement in bandgap engineering through controlled doping has widen the prospectof vacancy ordered double halide perovskites (VO DHPs) by conferring them with designableoptoelectronic properties. Here, we report synthesis of Gd doped Cs2SnCl6 via a simplesolvothermal method. Gd3+ ions doping lowers the band gap from 3.8 eV to 2.8 eV and facilitatesstable room temperature dual PL emission centered at 440 nm and 610 nm. The macroscopicemission process is well supported by the confocal PL emission studies on isolated crystallites.Both the pristine (Cs2SnCl6) and Gd:Cs2SnCl6 exhibit crystalline cubic structure with Fm3m spacegroup. Rietveld refinement correlates well with the cubi…
Characterization and Investigation of NLO Properties of some Selected Electrodeposited Polythiophenes
2009
In this work we study the electronic properties of ClO− doped polythiophenes and discuss the nonlinear optical properties of these organic 4 compounds galvanostatically electrodeposited on ITO glasses. The investigation on the electronic properties (band gap, flat band potential) was performed by means of a non-destructive optical technique, photocurrent spectroscopy (PCS). The investigation on the nonlinear optical response was carried out by means of second and third harmonic generation (SHG and THG) measurements. In particular, the effect of the oxidation state of the polymeric films was studied by comparing the NLO response of oxidized and reduced polythiophenes. Reduced poly- meric films …
Ferromagnetic ordering in GdPdCd
2010
Abstract GdPdCd was obtained in pure form via reaction of the elements in a sealed tantalum tube in a high-frequency furnace. The structure was investigated by X-ray diffraction on both powders and single crystals: ZrNiAl type, P 6 2m , a=758.2(1), c=391.78(7) pm, wR2=0.0410 for 358 F2 values and 14 variables. Striking structural motifs of GdPdCd are two types of palladium-centered tricapped trigonal prisms [Pd1Cd3Gd6] and [Pd2Cd6Gd3]. Together the palladium and cadmium atoms build a three-dimensional network in which the gadolinium atoms fill distorted pentagonal channels. Susceptibility measurements reveal Curie–Weiss behaviour with an effective magnetic moment of 8.2(1) μB/Gd. GdPdCd ord…
Density-functional tight-binding modeling of electromechanics of phosphorene
2018
Single-layer black phosphorus or phosphorene is a two-dimensional material made from a puckered honeycomb structure. It is a semiconductor with a tunable band gap and both its mechanical and electronic properties are highly asymmetric because of the puckering. Recently there has been numerous computational studies and some experimental works trying to bring deeper understanding about this relatively new 2D material. In this study we simulate phosphorene using computationally low-cost density functional tight-binding (DFTB) method to see how stretching, shearing and bending affect its electronic properties. The band structure analysis shows that there is a relation between shearing and bendi…
Very high rotational frequencies and band termination in 73Br
2000
Rotational bands in 73Br have been investigated up to spins of 65/2 using the EUROBALL III spectrometer. One of the negative-parity bands displays the highest rotational frequency 1.85 MeV reported to date in nuclei with mass number greater than 25. At high frequencies, the experimental dynamic moment of inertia for all bands decrease to very low values, indicating a loss of collectivity. The bands are described in the configuration-dependent cranked Nilsson-Strutinsky model. The calculations indicate that one of the negative-parity bands is observed up to its terminating single-particle state at spin 63/2. This result establishes the first band termination case in the A = 70 mass region.
PROPAGAZIONE DELLA FRATTURA IN COMPONENTI SOLLECITATI DA PROCESSI ALEATORI A BANDA LARGA
2011
In this paper a method for estimating the crack propagation in components subjected to wide band random processes of loading is presented. The analysis has been carried out considering uniaxial stresses and stationary and gaussian processes. The method uses as input one parameter of the power spectral density (PSD) of the stress process, its variance and 2 parameters of the material and eliminate the need of the integration of the equation of Paris in time domain. The method has been developed by carrying out a significant amount of numerical simulations in which about a thousand different PSDs of different shapes and spectral parameters have been considered.
Música y educación : revista internacional de pedagogía musical
2012
Este estudio trata de sacar a la luz las nuevas creaciones en el único género musical compuesto ex profeso para banda: la Música de Moros y Cristianos, música incidental para la Fiesta y el desfile que se materializa en sus tres modalidades de marchas moras, marchas cristianas y pasodobles. A pesar del corpus musical que aumenta cada día, no hay que olvidar que la Música Festera ha dejado de vivir su periodo clásico dorado para adoptar un estilo más vanguardista y contemporáneo. Analizaremos las últimas tendencias en la creación musical desarrolladas en este género para terminar preguntándonos si es lícito traspasar su funcionalidad con este tipo de innovaciones.
« Traduction verte »: le langage des tranchées et l’argot dans le roman graphique
2021
The translation of slang is a thorny issue for any translator. First, we define the object of study, the classic slang and the language of the trenches, to clarify the choice that pushes the authors of comics and graphic novels to privilege this language. We then discuss, on the one hand, the difficulties of translating this lexicon into Italian and, on the other hand, the possible translational strategies to be able to align, as faithfully as possible, with the style of the original text without transforming it; to do this, we have taken into consideration Tardi and Verney’s graphic novel Putain de guerre, Seif Eddine Nechi’s comic De plomb et de sang and Bagères and François’s graphic nov…