Search results for "Teoria"
showing 10 items of 2647 documents
Capacity Analysis in Downlink WCDMA Systems Using Soft Handover Techniques With SIR-Based Power Control and Site Selection Diversity Transmission
2006
This work analyzes the downlink performance of a WCDMA system with site selection diversity transmission power control (SSDT) during soft handover mode. Signal to interference ratio (SIR) power control techniques are modeled and used in the simulations of this analysis. The study is focused on finding the optimum soft handover margin in terms of maximum system capacity under energy-per-bit to noise spectral density ratio (Eb/N0) quality requirements. The results of this analysis show an increase in user capacity of about 15 -20 % for optimum soft handover margins of 5 – 5.5 dB. Nevertheless, the resources required (number of scrambling codes) by base station increase faster than the number …
Particle distribution in dilute solid liquid unbaffled tanks via a novel laser sheet and image analysis based technique
2013
The availability of experimental information on particle distribution inside stirred tanks is a topic of great importance for many industrial applications such as catalysis and polymerization. The measurement of solid particle distribution is not simple and the development of suitable measuring techniques is still an open problem in chemical engineering research. In this work, a non-intrusive optical technique for measuring particle concentration fields in solid–liquid systems is discussed. The “Laser Sheet Image Analysis” (LSIA) technique described here makes use of a laser sheet, a digital camera for image acquisition and a suitable procedure for post-processing. It is able to provide sol…
Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment
2013
NEXT-100 experiment aims at searching the neutrinoless double-beta decay of the Xe-136 isotope using a TPC filled with a 100 kg of high-pressure gaseous xenon, with 90% isotopic enrichment. The experiment will take place at the Laboratorio Subterraneo de Canfranc (LSC), Spain. NEXT-100 uses electroluminescence (EL) technology for energy measurement with a resolution better than 1% FWHM. The gaseous xenon in the TPC additionally allows the tracks of the two beta particles to be recorded, which are expected to have a length of up to 30 cm at 10 bar pressure. The ability to record the topological signature of the beta beta 0 nu events provides a powerful background rejection factor for the bet…
Description and commissioning of NEXT-MM prototype: first results from operation in a Xenon-Trimethylamine gas mixture
2014
[EN] A technical description of NEXT-MM and its commissioning and first performance is reported. Having an active volume of ∼35 cm drift × 28 cm diameter, it constitutes the largest Micromegas-read TPC operated in Xenon ever constructed, made by a sectorial arrangement of the 4 largest single wafers manufactured with the Microbulk technique to date. It is equipped with a suitably pixelized readout and with a sufficiently large sensitive volume (∼23 l) so as to contain long (∼20 cm) electron tracks. First results obtained at 1 bar for Xenon and Trymethylamine (Xe-(2%)TMA) mixture are presented. The TPC can accurately reconstruct extended background tracks. An encouraging fu…
Pricing of Digital Innovations as an Entrepreneurial Process
2019
How do entrepreneurs set a price for digital innovations they develop and market? This is an important question in current information society where digitalization is making established pricing models outdated. In this study, we focus on this issue by examining what kinds of activities and resources entrepreneurs possess when pricing digital innovations. Based on five case studies, including 37 interviews with key decision makers involved in the pricing process, we found that pricing of digital innovations can be conceptualized as an entrepreneurial process in which the pricing capabilities are developed based on the resources at hand. In this view, the pricing model is adjusted through neg…
Due usi italiani di "enunciazione"
2015
This article examines two uses of the word enunciation in some recent contributions of the italian semiotics: a) “enunciation” as activation of open semantic potentials (VIOLI 2003) ; b) “enunciation” as modulation of local encyclopedic sections (PAOLUCCI 2010). Thanks to the theoretical resources of two fundamental research programs as Benveniste’s linguistics (LEB) and Culioli’s theory of predicative and enunciative operations (TOPE), we try to demonstrate that these uses are variants of the same general idea, i.e. “actualization” of encyclopedic virtualities. In the last section of the paper, we formulate some questions that remain open in the context of this investigation.
Seconda persona
2020
The text aims at analyzing the theoretical nexus between Lacanian Psychoanalysis and Theories of Enunciation.
Pour se faire langage. Lexique élémentaire de la Théorie des opérations prédicatives et énonciatives d’Antoine Culioli. Préface de Dominique Ducard
2020
The text aims at introducing the basic ideas underlying to the so-called Theory of Enunciative Operations of Antoine Culioli.
Antoine Culioli. L'arco e la freccia. Scritti scelti. Con il saggio di Francesco La Mantia Sul lessico della linguistica di Culioli. Prefazione di Tu…
2014
The text aims at explaining the pivotal point of the Theory of Enunciative Operations of Antoine Culioli