Search results for "Online"
showing 10 items of 4526 documents
Il legislatore tedesco approfitta di una più ampia riforma per disciplinare le perquisizioni online
2019
Nel contesto di un articolato intervento normativo, il legislatore tedesco ha introdotto all’interno del codice di rito la disciplina della Online-Durchsuchung, istituto paragonabile alle perquisizioni online. La fattispecie – di difficile inquadramento, soprattutto per la sua possibile sovrapposizione con le intercettazioni di comunicazioni, tramite trojan – era già stata oggetto di interessanti scelte sistematiche sia legislative, sia giurisprudenziali. Sulla scia di alcune pronunce della Corte costituzionale federale, le “nuove” norme aprono interrogativi rilevanti anche sul piano comparatistico. In the context of a broad reform, the German Legislator has regulated, whithin the Criminal …
Perceptions of convenience, risk and enjoyment in online shopping
2015
As online shopping is getting more common all the time and competition over customers increases, companies should draw attention to the customer perception of online shopping. Therefore, the present study aims to describe and understand the customer online shopping perception in every stage of the online shopping process. Online shopping has been studied earlier from the viewpoints of the ease of use and the usefulness but as the quickness and easiness of shopping have been found to be factors that motivate customers to use online stores, the customer perception of the convenience of online shop use will be investigated in the present study. In addition to the convenience, the risk and the …
Robust Control of Nonlinear Systems: An Unknown Input Observer Based Approach
2023
Questa tesi propone un controllore robusto per sistemi non lineari tramite l'utilizzo di un osservatore ad ingressi sconosciuti. Attraverso un'opportuna riformulazione dinamica del modello, un generico sistema non lineare viene descritto come la somma di due funzioni, la prima lineare e nota e la seconda altamente non lineare e sconosciuta, derivante dalla conoscenza imperfetta del modello dinamico, dei parametri, o di eventuali disturbi esogeni agenti sul sistema etc., modellabili come perturbazioni (disturbi) della funzione lineare. Questa semplificazione consente una vantaggiosa descrizione dinamica del sistema in forma matriciale. Le informazioni necessarie sono stimate attraverso l'uti…
Mathematical modelling of an elongated magnetic droplet in a rotating magnetic field
2012
Dynamics of an elongated droplet under the action of a rotating magnetic field is considered by mathematical modelling. The actual shape of a droplet is obtained by solving the initial-boundary value problem of a nonlinear singularly perturbed partial differential equation (PDE). For the discretization in space the finite difference scheme (FDS) is applied. Time evolution of numerical solutions is obtained with MATLAB by solving a large system of ordinary differential equations (ODE).
Spherical nonlinear correlations for global invariant three-dimensional object recognition
2007
We define a nonlinear filtering based on correlations on unit spheres to obtain both rotation- and scale-invariant three-dimensional (3D) object detection. Tridimensionality is expressed in terms of range images. The phase Fourier transform (PhFT) of a range image provides information about the orientations of the 3D object surfaces. When the object is sequentially rotated, the amplitudes of the different PhFTs form a unit radius sphere. On the other hand, a scale change is equivalent to a multiplication of the amplitude of the PhFT by a constant factor. The effect of both rotation and scale changes for 3D objects means a change in the intensity of the unit radius sphere. We define a 3D fil…
A combined approach of SGBEM and conic quadratic optimization for limit analysis
2011
The static approach to evaluate the limit multiplier directly was rephrased using the Symmetric Galerkin Boundary Element Method (SGBEM) for multidomain type problems [1,2]. The present formulation couples SGBEM multidomain procedure with nonlinear optimization techniques, making use of the self-equilibrium stress equation [3-5]. This equation connects the stresses at the Gauss points of each substructure (bem-e) to plastic strains through a self-stress matrix computed in all the bem-elements of the discretized system. The analysis was performed by means of a conic quadratic optimization problem, in terms of discrete variables, and implemented using Karnak.sGbem code [6] coupled with MathLa…
"Table 3" of "Comprehensive measurements of $t$-channel single top-quark production cross sections at $\sqrt{s} = 7$ TeV with the ATLAS detector"
2014
The cross sections for top-quark and top-antiquark production in the t-channel, together with the cross-section ratio.
Hidden attractors in dynamical models of phase-locked loop circuits : limitations of simulation in MATLAB and SPICE
2017
During recent years it has been shown that hidden oscillations, whose basin of attraction does not overlap with small neighborhoods of equilibria, may significantly complicate simulation of dynamical models, lead to unreliable results and wrong conclusions, and cause serious damage in drilling systems, aircrafts control systems, electromechanical systems, and other applications. This article provides a survey of various phase-locked loop based circuits (used in satellite navigation systems, optical, and digital communication), where such difficulties take place in MATLAB and SPICE. Considered examples can be used for testing other phase-locked loop based circuits and simulation tools, and m…
Enhancing Digital Skills of Early Childhood Teachers Through Online Science, Technology, Engineering, Art, Math Training Programs in Estonia
2022
Teacher professional development programs, including mid- and long-term Science, Technology, Engineering, Art, Math (STEAM) courses, have recently moved from in person learning at university premises to an online environment. Whether it is a temporary change in learning methods caused by the COVID-19 restrictions or whether it will become a new normal is currently under discussion in many teacher training institutions around the world. The aim of this study was to design and implement time- and money-saving synchronous online teacher training format for conducting co-design courses for early childhood teachers in the theme of STEAM integrated learning activities. Based on Tallinn University…
Info-communicationnal approach of medical cannabis self-medication : analysis of figures mobilized in knowledge legitimation within a community dedic…
2022
This thesis proposes an infocommunicational approach to self-medication with medical cannabis. We question the logic of knowledge legitimization in a context where the coercive power of the French state is exercised. We seek to understand how the use of cannabis is determined in a radically constrained legislative framework, for users in a recreational or self-medication approach, but also for doctors and patients in a medical approach. To do this, we analyze the processes of knowledge legitimization that allow the development of practical know-how allowing individuals to consume cannabis in a self-medication approach within clandestine health communities of practice, supported by participa…