901 research outputs found
Deterministic KPZ-type equations with nonlocal âgradient termsâ
The main goal of this paper is to prove existence and non-existence results for deterministic KardarâParisiâZhang type equations involving non-local âgradient termsâ. More precisely, let Ω â RN, Nâ„ 2 , be a bounded domain with boundary âΩ of class C2. For sâ (0 , 1) , we consider problems of the form {(-Î)su=ÎŒ(x)|D(u)|q+λf(x),inΩ,u=0,inRN\Ω,(KPZ)where q> 1 and λ> 0 are real parameters, f belongs to a suitable Lebesgue space, ÎŒâ Lâ(Ω) and D represents a nonlocal âgradient termâ. Depending on the size of λ> 0 , we derive existence and non-existence results. In particular, we solve several open problems posed in [Abdellaoui in Nonlinearity 31(4): 1260-1298 (2018), Section 6] and [Abdellaoui in Proc Roy Soc Edinburgh Sect A 150(5): 2682-2718 (2020), Section 7]. © 2022, Fondazione Annali di Matematica Pura ed Applicata and Springer-Verlag GmbH Germany, part of Springer Nature
Transport Ă©lectronique dans lâalliage liquide binaire OrâArgent
Electronic transport in liquid binary alloys Gold-SilverThe electrical resistivity of the liquid alloy Gold-Silver was measured on the totality of the diagram of phase since the melting point until 1150°C. Our measurements, made in a quartz cell equipped with tungsten electrodes, were compared with those obtained by Roll and Motz using a technique without electrodes. The technique that we used does not reproduce the anomalies observed by Roll and Motz in the curves of resistivity and its temperature coefficient as function of the concentration. The confrontation of our experimental results with the theory was made by using two types of dephasing as well as the pseudopotential suggested by Idress et al. and used by Alam and Tomak
The effect of the natural raw barite and the dolomite material on borate glass formation
No Abstract
The use of reproductive vigor descriptors in studying genetic variability in nine Tunisian faba bean (Vicia faba L.) populations
A collection of nine Tunisian faba bean (Vicia faba) populations belonging to three botanical classes (Var. minor, var. equina and var. major) was evaluated using twenty seven agro-morphological traits. Analysis of variance, correlation coefficients and principal components analysis (PCA) were performed based on MVSP 3.13 program. Significant differences between populations were noted for most agromorphological traits in four main groups. The first group, positively correlated to the two axes, isrepresented by âBachaarâ belonging to V. faba. var. minor, the second group, including V. faba. var. minor population (âMassriâ and âBadĂŻâ), is positively correlated to the PC1 and negatively correlated to the PC2 while the third group, is composed of two V. faba var. major (âMaltiâ and âBatataâ) and were positively and negatively correlated to the PC2 and PC1, respectively. Finally, the fourth group negatively correlated to the two axes, gathers the remaining population (âChahbiâ, âChemlaliâ, âAguadulceâ and âSuper Aguadulceâ). The dendrogram based on Nei's genetic distance of the 9 populations using UPGMA method, show some genetic drift between populations.Key words: Faba bean, agromorphological traits, principal components analysis, UPGMA method
European training partnership for an inclusive society
The paper presents an European project aiming to consolidate the partners capacity of involving themselves actively in transitional partnership in order to promote the social inclusion of young instituonalized people in re-education centres by (i) increasing the institutional capacity of concurring at the reformation and the efficiency of the education and lifelong learning system in the detention and re-education centres for underage people and by (ii) professional and individual developing of the participants which can lead to local assumption of the reform
A new configuration of patch antenna array for rectenna array applications
The performance and advantages of microstrip patch antennas made them a field of interest for wireless power transmission applications, especially for rectenna systems where the choice of the antenna is a crucial step. In this paper, a 5.8 GHz circularly polarized patch antenna has been designed and fabricated, then mounted by using 4 elements to achieve an antenna array to enhance the captured power to be converted by the rectifier circuit. The antenna array is well matched at 5.8 GHz in terms of reflection coefficient and has a directivity of 11dB and a gain of 6 dB. Results have been confirmed by fabrication
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