Search results for "RICH"

An Innovative Power Line Communication solution For Medium Voltage Smart Grids Applications

2018

This paper summarizes the authors research activity concerning the design, modeling and experimental characterization of a new coupling system for medium voltage (MV) narrow band power line communications (NB-PLC). The proposed solution has been patented by authors and it exploits the capacitive divider of voltage detecting systems (VDSs) normally used to reveal the mains voltage presence, thus avoiding the use of dedicated MV couplers. In the following, the modeling of the VDS capacitive divider is presented and the interface card design is described, based on simulation of the whole PLC transmission channel. Laboratory tests are also presented. Finally, the results are shown of an on-fiel…

Harmonic sources detection in power systems via nonactive power measurements according to IEEE Std. 1459-2010: theoretical approach and experimental …

2010

In this paper an enhanced decision-making strategy is presented for the detection of harmonic sources in power systems able to detect also which is the prevailing nature of the disturbance (nonlinearity or unbalance). It makes use of some simple indices, which are evaluated by means of the measurements of some nonactive power quantities, proposed by the authors and derived from the approach of the IEEE Std. 1459-2010. The decision-making rules for the proposed strategy are presented and discussed by means of simulation and experimental tests. The results obtained are presented, showing the effectiveness of the proposed strategy for the detection of the dominant harmonic source upstream or d…

A Line Impedance Calculator Based on a G3 PLC Modem Platform

2022

Power line communication (PLC) is one of the most today used technologies for both automatic meter reading and many other smart grid applications. In this framework, a characterization of the electrical network in the PLC frequency range is needed in terms of impedance measurement and received signal level. This can allow choosing the most suitable and less noisy frequency ranges for PLC transmission. Usually, these characterization measurements are performed with dedicated instrumentation and in the absence of mains voltage. This article wants to propose an alternative solution, which allows these kinds of measurements to be performed using electronic boards currently used as on-field appl…

Uncertainty evaluation in load flow analysis: real MV distribution networks case studies

2018

This work investigates the measurement uncertainty impact on load flow analysis in medium voltage (MV) distribution networks. The considered algorithm is a simplified load flow algorithm (LFA), developed by authors, which is based on the load power measurements at each secondary substation and one voltage measurement at the slack bus (i.e. the voltage at the MV bus bars of the primary substation). In the viewpoint of a real implementation, to reduce monitoring system costs, the LFA makes use of low voltage (LV) load power measurements for all the substations except those of MV users, where MV transducers are usually already installed. The uncertainties on LFA input quantities (load powers a…

Elämisen taidetta pragmatistisesta näkökulmasta : tutkielma esteettisen elämän kehollisuudesta

2017

Tutkielmani aiheena on elämisen taide (art of living), jota tarkastelen pragmatistisen filosofian näkökulmasta. Richard Shusterman (1949–) on tutkielmani kannalta tärkein ajattelija. Shustermanon amerikkalainen uuspragmatisti, joka on tutkinut erityisesti estetiikkaa. John Dewey (1859–1952) on ollut Shustermanille tärkeä vaikuttaja. Shusterman ajattelussaan jatkaa Deweyn aloittamaa esteettisen kokemuksen merkityksen korostamista. Shusterman esittää, että estetiikan vapauttaminen taiteen määrittelemisen tehtävästä on pragmatistisen estetiikan keskeinen tavoite. Kokemusta korostettaessa on mahdollista ymmärtää taiteellisen ja muun toiminnan väliset rajat vapaammin. Tutkielmassani osoitan, ett…

Analisi logico-giuridica della sentenza n. 4755, resa dalla Corte Suprema di Cassazione il 25 luglio 1986, come esempio di ragionamento per analogia

2008

Psychopathology and female detention at the “Pagliarelli” jail of Palermo: preliminary results

2018

Most of the studies carried out on prisoners have considered male samples or they investigated specific psychiatric disorders. The present study aims to estimate the presence of current and lifetime psychiatric disorders among female inmates. Secondary aims are to evaluate the correlation between a current psychiatric disorder and other variables, and the association with a psycho-pharmacotherapy and a request for a clinical psychological interview. The study included 25 women with a final sentence at the “Casa Circondariale Pagliarelli” from October 2016 to July 2017. The Mini International Neuropsychiatric Interview (MINI) was used to assess the presence of any current or lifetime psychia…

The Occurrence of Diseases and Related Factors in a Center for Asylum Seekers in Italy

2016

Italy is the main recipient of asylum seekers in the European region, and Sicily is their first point of arrival. This geographical position creates a large job for Health Authorities to identify and deal with the health of immigrants. This study evaluates the prevalence of disease among asylum seekers, assessing which are associated factors.A cross-sectional study was conducted to analyse demographic and clinical data in an Acceptance Centres for Asylum Seekers from February 2012 to May 2013. All variables that were found to be significant on unvariable analysis for the most frequent pathologies were included in a multivariable logistic regression model.Post-traumatic stress disorders with…

Quote rosa e parità tra i sessi: la storia di un lungo cammino

2017

Art. 48 of the Italian Constitution grants right to vote to men and women without any difference, according to art. 3.1, which enshrines the principle of equality and the prohibition of discrimination based on “sex, race, language, religion, political opinion, personal and social conditions”. The right to be elected is established by art. 56.3 Cost. for the Camera dei Deputati and by art. 58.1 Cost. for the Senato della Repubblica, without any reference to the sex of the candidates. In Italy, the right to vote was established early, on occasion of the vote for the institutional referendum of the 2nd June 1946; differently, the right to be elected has been the result of a long and hard-fough…

Maintenance of genetic diversity in cyclic populations—a longitudinal analysis in Myodes glareolus

2012

Conspicuous cyclic changes in population density characterize many populations of small northern rodents. The extreme crashes in individual number are expected to reduce the amount of genetic variation within a population during the crash phases of the population cycle. By long-term monitoring of a bank vole (Myodes glareolus) population, we show that despite the substantial and repetitive crashes in the population size, high heterozygosity is maintained throughout the population cycle. The striking population density fluctuation in fact only slightly reduced the allelic richness of the population during the crash phases. Effective population sizes of vole populations remained also relative…