Search results for " Multilevel."
showing 4 items of 64 documents
Impact Evaluation of Innovative Selective Harmonic Mitigation Algorithm for Cascaded H-Bridge Inverter on IPMSM Drive Application
2021
This paper presents a detailed analysis of the use of a novel Harmonic Mitigation algorithm for Cascaded H-Bridge Multilevel Inverter in electrical drives for the transportation field. For this purpose, an enhanced mathematical model of Interior Permanent Magnet Synchronous Motor (IPMSM), that takes into account simultaneously saturation, cross-coupling, spatial harmonics, and iron loss effects, has been used. In detail, this model allows estimating accurately the efficiency and the torque ripple of the IPMSM, crucial parameters for transportation applications. Moreover, two traditional pulse width modulation strategies, Sinusoidal Phase-Shifted and Switching Frequency Optimal Phase-Shifted…
Prosociality and life satisfaction: A daily-diary investigation among Spanish university students
2018
Abstract With a diary study, we tested the positive effect of prosociality on life satisfaction. Fifty-six Spanish undergraduate students (45 females; Mage = 21.08 years) rated their life satisfaction, prosociality, self-esteem, and physical appearance for 5 consecutive days. Multilevel results indicated that within-individual positive deviations in prosociality (i.e., behaving more prosocial than usual) were uniquely and significantly associated with higher life satisfaction on that specific day. Students' self-esteem, physical appearance, and positive daily events were also predictive of life satisfaction. Exploratory analyses revealed that the positive effect of prosociality on life sati…
Immigrati e diritti sociali
2016
Il saggio analizza in chiave critica i problemi più attuali della protezione socia¬le degli immigrati. Dopo avere ricostruito il quadro normativo attualmente vigente, l’A. esamina le pronunce giurisprudenziali più significative in materia di parità di trattamento e divieto di discriminazione, valutandone l’impatto con riferimento ai diversi status di immigrato. L’ultima parte è dedicata alla questione della condizionalità delle prestazioni di assistenza sociale a causa dei vincoli di bilancio imposti agli Stati dalla nuova governance europea. The paper proposes a critical view of the most actual problems concerning social protection of migrant people. On the one hand, it presents the in for…
Is Autonomy Always Beneficial for Work Engagement? A Six-year Four-Wave Follow-Up Study.
2021
Work engagement is expected to result from job resources such as autonomy. However, previous results have yielded that the autonomy–work engagement relationship is not always particularly strong. Whereas previous longitudinal studies have examined this relationship as an average at a specific point in time, this study examined whether this relationship is different within individuals from one time to another over the years. Furthermore, experiences of work engagement are expected to affect how employees benefit from autonomy, but no studies have so far investigated whether the initial level of work engagement affects the autonomy–work engagement relationship. This study aimed to first ident…