1,583 research outputs found
Chaotic asymptotic behaviour of the solutions of the Lighthill Whitham Richards equation
[EN] The phenomenon of chaos has been exhibited in mathematical nonlinear models that describe traffic flows, see, for instance (Li and Gao in Modern Phys Lett B 18(26-27):1395-1402, 2004; Li in Phys. D Nonlinear Phenom 207(1-2):41-51, 2005). At microscopic level, Devaney chaos and distributional chaos have been exhibited for some car-following models, such as the quick-thinking-driver model and the forward and backward control model (Barrachina et al. in 2015; Conejero et al. in Semigroup Forum, 2015). We present here the existence of chaos for the macroscopic model given by the Lighthill Whitham Richards equation.The authors are supported by MEC Project MTM2013-47093-P. The second and third authors are supported by GVA, Project PROMETEOII/2013/013Conejero, JA.; MartĂnez JimĂ©nez, F.; Peris Manguillot, A.; RĂłdenas EscribĂĄ, FDA. (2016). Chaotic asymptotic behaviour of the solutions of the Lighthill Whitham Richards equation. 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Tensor products of recurrent hypercyclic semigroups
We study tensor products of strongly continuous semigroups on Banach spaces
that satisfy the hypercyclicity criterion, the recurrent hypercyclicity
criterion or are chaotic.Comment: 6 pages. Final version to appear in J. Math. Anal. App
Vector Meson Dominance as a first step in a systematic approximation: the pion vector form factor
Pade Approximants can be used to go beyond Vector Meson Dominance in a
systematic approximation. We illustrate this fact with the case of the pion
vector form factor and extract values for the first two coefficients of its
Taylor expansion. Pade Approximants are shown to be a useful and simple tool
for incorporating high-energy information, allowing an improved determination
of these Taylor coefficients.Comment: 13 pages, 7 figure
Lightweight Mutual Authentication Protocol for Low Cost RFID Tags
Radio Frequency Identification (RFID) technology one of the most promising
technologies in the field of ubiquitous computing. Indeed, RFID technology may
well replace barcode technology. Although it offers many advantages over other
identification systems, there are also associated security risks that are not
easy to be addressed. When designing a real lightweight authentication protocol
for low cost RFID tags, a number of challenges arise due to the extremely
limited computational, storage and communication abilities of Low-cost RFID
tags. This paper proposes a real mutual authentication protocol for low cost
RFID tags. The proposed protocol prevents passive attacks as active attacks are
discounted when designing a protocol to meet the requirements of low cost RFID
tags. However the implementation of the protocol meets the limited abilities of
low cost RFID tags.Comment: 11 Pages, IJNS
Mixing unilateral weighted backward shifts on barrelled topological sequence spaces
Extending previous results of Grosse-Erdmann and Peris we obtain a
characterization of mixing unilateral weighted backward shifts on barrelled
topological sequence spaces in which the canonical unit vectors
form a basis
[Reseña]. Escåmez, J. y Peris-Cancio, J. A. (2021). La Universidad del siglo XXI y la sostenibilidad social. Tirant lo Blanch-Universidad Católica de Valencia San Vicente Mårtir
Los profesores Juan EscĂĄmez y JosĂ© Alfredo Peris, junto con un grupo de colaboradores âInmaculada LĂłpez-FrancĂ©s, Emilia Oliver y Juan Isidro EscĂĄmezâ, se han unido para escribir un libro valiente y provocador. La obra se divide en 10 capĂtulos que afrontan diferentes problemĂĄticas basadas en una idea comĂșn: la Universidad y su necesaria influencia en la sostenibilidad social.EducaciĂł
BiometrĂa del Estornino Negro (Sturnus unicolor Temm,) en el centro-oeste de la PenĂnsula IbĂ©rica
Management of diversity in master classroom: an increasing challenge for science education in valencian universities
ComunicaciĂł presentada a INTED2018, 12th International Technology, Education and Development Conference. (March 5-7, 2018, Valencia, Spain).Currently, many foreign students study a Master degree at the Valencian Universities. We can find students, which have immigrated to Spain in the recent years, and then have partially or fully follow the Spanish curricula (High School and/or Grade), and others which have come specifically to study the Master, attracted by the reputation of the Universities and the job and way-of-life offered by the country, and then have achieved their Grade in their countries. This has increased the diversity of the students in the classrooms, related to the ethnic origin, mother language, study practices, background and integration in the society. The present work gives an overview on how students and teacher manage the heterogeneity and diversity in a Master classroom related to chemistry. The term âdiversityâ is first detailed prior to discussing explicit studies. Different aspects of diversity are stated. The personal experience of the foreign students to adapt to the Spanish courses and environment was investigated. The actions taken by the lecturer to take advantage of diversity and minimize its negative effects were examined. A comparison between the academic results obtained by international and national students is given. Finally, the attention will be focused on language, study practices and background, since these dimensions are frequently discussed in the Valencian context. The implications and opportunities that offer diversity for national but also for international science research are presented
«La llibertat no és elegir entre dos o més models preexistents, sino fer advenir el que encara no és». Conversa amb Fina Birulés
En el nĂșmero 58 de la revista L'Espill trobarĂ s un dossier monogrĂ fic sobre "Un tombant social: la precaritzaciĂł de les capes mitjanes", amb contribucions de Sandra Obiol, Antonio Santos, Esteban HernĂĄndez, Rafael CastellĂł, Francisco J. Goerlich, David Muñoz, Mariano Urraco i Arnaldo Bagnasco. A mĂ©s, articles de Rob Riemen, Richard Wolin, Simona Ć krabec, Zira Box, Neville Alexander, Sherry Simon i Manuel Peris, aixĂ com documents de Walter Benjamin, un full de dietari de Jaume Subirana i converses amb Fina BirulĂ©s i Luka Lisjak
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