Search results for "REEs"
showing 10 items of 921 documents
Groups with few p′-character degrees
2020
Low-temperature specific heat of orientational glasses
1992
This review summarizes specific heat data measured at low temperatures (T<1 K) on orientational glasses. Three species of mixed molecular crystals exhibiting orientational disorder are considered, namely (KBr)1−x (KCN) x , (NaCN)1−x (KCN) x (Rb)1−x (NH4) x H2PO4. For intermediate concentrations of the anisotropic components, glass-like excitations have been observed. It is demonstrated that with respect to thermal properties, orientational disorder leads to the same “universal” behaviours than for structural disorder, i.e. a specific heat which varies below 1 K and for times 10−4 s–10 s as:C p(T,t)∞T 1×ln(t). The variation of the glass-like anomaly with compositional disorder is also discus…
A Methodology for Protection of Trees Against Lightning Strikes as a Measure to Prevent Fires and Loss of Human Life
2021
Some regions may be characterized by a very low annual lightning ground flash density, and yet lightning strikes seem to have been in those areas the cause of widespread wildfires in forested areas. Due to global climate change, these occurrences seem to be an increasing threat. In this paper, the authors discuss the withstand capability of trees against lightning and introduce the criteria for the deployment of tree lightning protection systems (TLPS) to protect forested areas, where deemed necessary by the tree risk assessment. This work analytically identifies the critical trunk radius of the tree below which the tree may explode in the case of a lightning strike and ignite the surroundi…
On-line quizzes to evaluate comprehension and integration skills
2016
[EN] This work demonstrates the use of a 2.0 tool, namely, Socrative, to evaluate one of the cross-curricular competences indicated by the Universitat Politècnica de València, specifically, comprehension and integration. It has been applied to the courses in different areas: sciences, engineering and languages. As part of its implementation, activities were proposed that could be done at the beginning, during or at the end of the class to, on the one hand, help students acquire the knowledge associated with the course(s), and on the other, gather evidence that demonstrates acquisition of said competence. The results show a high level of satisfaction by the students with the use of the Socra…
A strong electroweak phase transition from the inflaton field
2016
We study a singlet scalar extension of the Standard Model. The singlet scalar is coupled non-minimally to gravity and assumed to drive inflation, and also couple sufficiently strongly with the SM Higgs field in order to provide for a strong first order electroweak phase transition. Requiring the model to describe inflation successfully, be compatible with the LHC data, and yield a strong first order electroweak phase transition, we identify the regions of the parameter space where the model is viable. We also include a singlet fermion with scalar coupling to the singlet scalar to probe the sensitivity of the constraints on additional degrees of freedom and their couplings in the singlet sec…
KERNEL ESTIMATION OF THE TRANSITION DENSITY IN BIFURCATING MARKOV CHAINS
2023
We study the kernel estimator of the transition density of bifurcating Markov chains. Under some ergodic and regularity properties, we prove that this estimator is consistent and asymptotically normal. Next, in the numerical studies, we propose two data-driven methods to choose the bandwidth parameters. These methods are based on the so-called two bandwidths approach.
The trees in the middle of Paradise (Gn 2:9) during the Great Lent: Orthodox hymnography as biblical interpretation
2022
The article examines the interpretation of the Scripture in Byzantine hymnography during the Great Lent. Some notable recent contributions focus on Andrew of Crete’s and Romanos the Melodist’s compositions, illustrating the hymnographic way of understanding the Scriptures. The author of this study presents a selection of stanzas from hymns of the Triodion that refer to the trees of Paradise. Hymnography perceives the trees in Genesis 2–3 in direct connection with the cross. Only rarely is the tree of life a metaphor for Jesus, as the shadow of the tree of the cross is seldom a metaphor for protection. Another interesting aspect in relation to hymnography is the fact that it represents a typ…
El mito de la princesa: Blancanieves y la Bella Durmiente según Elfriede Jelinek
2011
Reescribir y reinterpretar cuentos tradicionales forma parte ya de una tradición literaria a la que no pocos autores se han sumado. El presente artículo ofrecerá un análisis de uno de estos intentos, llevado a cabo por la escritora austriaca Elfriede Jelinek. La autora ganadora del Premio Nobel de Literatura en 2004 publicó un año antes Dramas de princesas. La muerte y la doncella I-V, un conjunto de cinco obras concebidas como entreactos de otros espectáculos teatrales. De entre los modelos que la autora toma como referencia, los cuentos de hadas suponen el punto de partida para dos de los dramas, La muerte y la doncella I (Blancanieves) y La Muerte y la doncella II (La Bella Durmiente). E…
Operations Management GADE Decision Trees Technique Lesson 4
2023
El document forma part dels materials docents programats mitjançant l'ajut del Servei de Política Lingüística de la Universitat de València. A refresher on the use of decision trees in Operations Management
New degrees of freedom for differential forms on cubical meshes
2022
We consider new degrees of freedom for higher order differential forms on cubical meshes. The approach is inspired by the idea of Rapetti and Bossavit to define higher order Whitney forms and their degrees of freedom using small simplices. We show that higher order differential forms on cubical meshes can be defined analogously using small cubes and prove that these small cubes yield unisolvent degrees of freedom. Significantly, this approach is compatible with discrete exterior calculus and expands the framework to cover higher order methods on cubical meshes, complementing the earlier strategy based on simplices.