Search results for "Principle"
showing 10 items of 1023 documents
Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments
1998
Several experimental methods feature the potential to distinguish between slow and fast contributions to the non-exponential, ensemble averaged primary response in glass-forming materials. Some of these techniques are based on the selection of subensembles using multi-dimensional nuclear magnetic resonance, optical bleaching, and non-resonant spectral hole burning. Others, such as the time-dependent solvation spectroscopy, measure microscopic responses induced by local perturbations. Using several of these methods it could be demonstrated for various glass-forming materials that the non-exponential relaxation results from a superposition of dynamically distinguishable entities. The experime…
Arabic Named Entity Recognition: A Feature-Driven Study
2009
The named entity recognition task aims at identifying and classifying named entities within an open-domain text. This task has been garnering significant attention recently as it has been shown to help improve the performance of many natural language processing applications. In this paper, we investigate the impact of using different sets of features in three discriminative machine learning frameworks, namely, support vector machines, maximum entropy and conditional random fields for the task of named entity recognition. Our language of interest is Arabic. We explore lexical, contextual and morphological features and nine data-sets of different genres and annotations. We measure the impact …
Exact Mechanical Hierarchy of Non-Linear Fractional-Order Hereditariness
2020
Non-local time evolution of material stress/strain is often referred to as material hereditariness. In this paper, the widely used non-linear approach to single integral time non-local mechanics named quasi-linear approach is proposed in the context of fractional differential calculus. The non-linear model of the springpot is defined in terms of a single integral with separable kernel endowed with a non-linear transform of the state variable that allows for the use of Boltzmann superposition. The model represents a self-similar hierarchy that allows for a time-invariance as the result of the application of the conservation laws at any resolution scale. It is shown that the non-linear spring…
Geographic Distribution and Niche Divergence of Two Stinkbugs,Parastrachia japonensisandParastrachia nagaensis
2014
Parastrachiidae is a small stinkbug family containing only one genus and two species, Parastrachia japonensis (Scott) (Hemiptera: Heteroptera: Pentatomoidea) and Parastrachia nagaensis Distant. The geographic distribution of the genus has been poorly studied. Niche conservatism refers to that idea that closely related species are more ecologically similar than would be expected, whereas niche divergence predicts they occupy distinct niche spaces. The existence of only two species within one genus suggests niche conservatism or differentiation might exist among them. Herein, the distribution of the genus was mapped, potential distributions were predicted using ecological niche modeling, and …
W sprawie zgodności z Konstytucją RP powoływania sędziów – członków Krajowej Rady Sądownictwa przez Sejm
2022
Przedmiotem niniejszego tekstu jest ustalenie, czy art. 9a ustawy o Krajowej Radzie Sądownictwa jest zgodny z Konstytucją RP. W celu udzielenia odpowiedzi na to pytanie przeanalizowano relacje, jakie powinny panować pomiędzy poszczególnymi władzami w systemie opartym o zasadę podziału władz. Następnie rozwiano wątpliwości co do tego, czy KRS jest organem występującym w pionie władzy sądowniczej. Ostatecznie stwierdzono, że w RP Sejm nie powinien mieć innych kompetencji kreacyjnych wobec organów władzy sądowniczej, niż tylko te, które wyraźnie przewiduje Konstytucja RP. W przeciwnym razie izba postawiona jest w pozycji nieuzasadnionej supremacji względem judykatywy, a władza sądownicza nie d…
Fractional visco-elastic Euler–Bernoulli beam
2013
Abstract Aim of this paper is the response evaluation of fractional visco-elastic Euler–Bernoulli beam under quasi-static and dynamic loads. Starting from the local fractional visco-elastic relationship between axial stress and axial strain, it is shown that bending moment, curvature, shear, and the gradient of curvature involve fractional operators. Solution of particular example problems are studied in detail providing a correct position of mechanical boundary conditions. Moreover, it is shown that, for homogeneous beam both correspondence principles also hold in the case of Euler–Bernoulli beam with fractional constitutive law. Virtual work principle is also derived and applied to some c…
Liberate the form. White concrete in the work of Álvaro Siza
2022
The study of the extensive work of Álvaro Siza Vieira allows relating the progressive linguistic innovation and the spatial experimentation of his architecture with the use of different constructive techniques and technologies. Assuming the white colour as the guiding thread of the discourse, the professional trajectory of Siza is traversed from its initial link with the Portuguese architectural tradition of the early twentieth century, until the current adoption of the constructive principles of the exposed concrete. The contribution puts in perspective some recent works of the Portuguese master, ordering and analyzing the projects with the aim of elucidating the underlying architectural p…
Oneri di sbilanciamento (diritto dell'energia)
2018
The article aims to explore to what extent consumers protection, as principle constitutionally guaranteed by art.38 of EU’s Charter of Fundamental Rights, should affect the rules governing the electricity dispatching service and the balancing system. On a market such as the electricity market, where demand is inflexible and the product concerned cannot be stored, electricity dispatching service is designed to ensure that, within the national transmission system, the supply of electricity matches demand, thereby guaranteeing security and continuity in the energy supply. Transparent market-based mechanisms for the supply and purchase of electricity needs to be combined with balancing measures…
IL CONTRATTO: I REQUISITI E LA FORMAZIONE , in Manuale del diritto privato a cura di S.Mazzamuto Terza edizione
2019
Una esposizione ragionata dei principi e regole che delineano la disciplina generale del contratto, aggiornata alla luce delle "contaminazioni" determinate dall'innesto del diritto di fonte europea.
A Parametric Dirichlet Problem for Systems of Quasilinear Elliptic Equations With Gradient Dependence
2016
The aim of this article is to study the Dirichlet boundary value problem for systems of equations involving the (pi, qi) -Laplacian operators and parameters μi≥0 (i = 1,2) in the principal part. Another main point is that the nonlinearities in the reaction terms are allowed to depend on both the solution and its gradient. We prove results ensuring existence, uniqueness, and asymptotic behavior with respect to the parameters.