3,364 research outputs found
Detection of Non-Technical Losses in Smart Distribution Networks: a Review
With the advent of smart grids, distribution utilities have
initiated a large deployment of smart meters on the premises of the
consumers. The enormous amount of data obtained from the consumers
and communicated to the utility give new perspectives and possibilities
for various analytics-based applications. In this paper the current
smart metering-based energy-theft detection schemes are reviewed and
discussed according to two main distinctive categories: A) system statebased,
and B) arti cial intelligence-based.Comisión Europea FP7-PEOPLE-2013-IT
Projective Market Model Approach to AHP Decision-Making
In this paper we describe market in projective geometry language and give
definition of a matrix of market rate, which is related to the matrix rate of
return and the matrix of judgements in the Analytic Hierarchy Process (AHP). We
use these observations to extend the AHP model to projective geometry formalism
and generalise it to intransitive case. We give financial interpretations of
such generalised model and propose its simplification. The unification of the
AHP model and projective aspect of portfolio theory suggests a wide spectrum of
new applications such extended model.Comment: APFA 6 - Applications of Physics in Financial Analysis 6th
International Conference, 4-7 July 2007, Lisbon, Portuga
Comparison of methods for H*(10) calculation from measured LaBr3(Ce) detector spectra
The Universitat Politecnica de Catalunya (UPC) and the Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) have evaluated methods based on stripping, conversion coefficients and Maximum Likelihood Estimation using Expectation Maximization (ML-EM) in calculating the H*(10) rates from photon pulse-height spectra acquired with a spectrometric LaBr3(Ce)(1.5¿ × 1.5¿) detector. There is a good agreement between results of the different H*(10) rate calculation methods using the spectra measured at the UPC secondary standard calibration laboratory in Barcelona. From the outdoor study at ESMERALDA station in Madrid, it can be concluded that the analysed methods provide results quite similar to those obtained with the reference RSS ionization chamber. In addition, the spectrometric detectors can also facilitate radionuclide identification.Postprint (author's final draft
Traducció i immigració : la figura de l'intèrpret als serveis públics de Catalunya
La manca de definició i de delimitació del camp d'acció de la figura del traductor-intèrpret als serveis públics en el context català està estretament lligada a la manca de formació especialitzada, així com a l'absència d'uns criteris que en regulin l'exercici. Des de les universitats, i concretament des dels centres d'ensenyament de la traducció i de la interpretació, ja s'ha començat a fer evident la urgència de donar resposta a aquesta necessitat, però en els plans d'estudis actuals la presència de continguts vinculats amb la traducció i la interpretació als serveis públics és encara molt exigua. En aquest article ens proposem dos objectius: d'una banda, oferir un estat de la qüestió sobre la mediació, la traducció i la interpretació als serveis públics a Catalunya, tant des de la perspectiva professional com des de la recerca aplicada, i de l'altra, definir el perfil del traductor i intèrpret als serveis públics catalans a través dels resultats d'un estudi empíric entorn d'aquest perfil emergent.In the context of Catalan public services, what constitutes the figure of translator and interpreter lacks a clear definition. This situation is directly linked to the lack of specialized training, as well as the absence of regulations governing this profession. Universities, and more specifically translation and interpreting training departments, have already made it clear that responding to these needs is a matter of some urgency. However, the offer of courses on translating and interpreting in the public services within current degree programs is still quite meager. Our objectives in this article are twofold. First, to offer a review of the present situation regarding translation and interpreting in public services in Catalonia, both from the professional perspective as well as from applied research. Second, to define the translator and interpreter profile in the Catalan public services using the results obtained from an empirical study on this emerging professional profile
Automated repair of process models with non-local constraints using state-based region theory
State-of-the-art process discovery methods construct free-choice process models from event logs. Consequently, the constructed models do not take into account indirect dependencies between events. Whenever the input behaviour is not free-choice, these methods fail to provide a precise model. In this paper, we propose a novel approach for enhancing free-choice process models by adding non-free-choice constructs discovered a-posteriori via region-based techniques. This allows us to benefit from the performance of existing process discovery methods and the accuracy of the employed fundamental synthesis techniques. We prove that the proposed approach preserves fitness with respect to the event log while improving the precision when indirect dependencies exist. The approach has been implemented and tested on both synthetic and real-life datasets. The results show its effectiveness in repairing models discovered from event logs.This work was partly supported by the Australian Research Council Discovery Project DP180102839.
This work was supported by MINECO and FEDER funds under grant TIN2017-86727-C2-1-R.Peer ReviewedPostprint (author's final draft
Multiwavelength study of the starburst galaxy NGC7714. I: Ultraviolet-Optical spectroscopy
We have studied the physical conditions in the central 300 pc of the
proto-typical starburst galaxy NGC 7714. Our analysis is based on ultraviolet
spectroscopy with the HST+GHRS and ground-based optical observations.The data
are interpreted using evolutionary models optimized for young starburst
regions. The massive stellar population is derived in a self-consistent way
using the continuum and stellar absorption lines in the ultraviolet and the
nebular emission line optical spectrum.
The central starburst has an age of about 4.5 Myr, with little evidence for
an age spread. Wolf-Rayet features at the ultraviolet indicates a stellar
population of 2000 Wolf-Rayet stars. The overall properties of the newly
formed stars are quite similar to those derived, e.g., in 30 Doradus. A
standard Salpeter IMF is consistent with all observational constraints. We find
evidence for spatial structure within the central 300 pc sampled. Therefore it
is unlikely that the nucleus of NGC 7714 hosts a single star cluster exceeding
the properties of other known clusters. Contrary to previous suggestions, we
find no evidence for a nuclear supernova rate that would significantly exceed
the total disk-integrated rate. About one supernova event per century is
predicted.Comment: 19 pages, 9 figures in a tar file. Accepted for publication in ApJ,
1999, March, issue 51
Hospital territorial integration in the National Recovery and Resilience Plan era: if not now, when?
Integrating hospital and territorial services is essential, particularly for elderly patients, as they are at risk of yearly hospitalizations for multimorbidity, frailty, and complex diagnostic procedures. The emergency room organization aims to focus mainly on acute time-dependent diseases and cannot meet the needs of older patients. The authors present the preliminary results of an integration protocol between the hospital’s services and those of the territorial elderly home care unit in Avellino, Italy
Habilidades directivas y gestión educativa en la Red 05 UGEL 02, Independencia-2018
La presente investigación titulada: “Habilidades directivas y gestión educativa en
la Red 05 UGEL 02, Independencia-2018” tuvo como objetivo general determinar
la relación de las “Habilidades directivas y gestión educativa en la Red 05 UGEL
02, Independencia-2018”.
El enfoque de estudio fue cuantitativo, tipo de investigación fue básica, de
diseño no experimental transversal, sus variables fueron habilidades directivas
conformada por habilidades básicas, técnicas y humanas de 21 ítems con escala
de respuesta politómica, y gestión educativa, conformada por las dimensiones
institucional, administrativa, pedagógica y comunitaria de 40 ítems con escala de
respuesta politómica, su población fue de 119 docentes, su muestra fue censal.
La técnica empleada para recolección de información fue encuesta, y los
instrumentos fueron cuestionarios, que fueron debidamente validados a través de
juicios de expertos y determinado su confiabilidad a través del estadístico de
fiabilidad (Alfa de Cronbach).
Su conclusión general determina que existen relación positiva media
(Rho=0.712) y significativa (p valor= 0.000 menor que 0.05) entre las habilidades
directivas con la gestión educativa en la Red 05 UGEL 02, Independencia-2018. y
significativa
- …