Search results for "CIRCUIT"

Equivalent Circuit Modelling of Ferrite Inductors Losses

2018

The modelling of the magnetic losses in the core of ferrite inductors for power conversion circuits has been considered in this paper. On the basis of the Revised Generalized Steinmetz Model (RGSE) an equivalent circuital modelling has been obtained. The losses are modelled as an equivalent resistance connected in parallel to the inductor. The model has been tested under periodic triangular current waveforms.

A Theory of electrical circuits with resistively coupled distributed structures : Delay time predicting

1988

This paper deals with qualitative properties ( existence, uniqueness, and especially, stability) and numerical solution of a circuit consisting of a resistive multiport with r-c-g "exactly modeled" distributed elements connected to its terminals. This kind of results are useful, for instance, when we study the effect of interconnections on the speed of transient process from an integrated structure. A formula to evaluate the delay time as a global parameter of the circuit is given and verified by numerical calculus. peerReviewed

Introduction. Penser les infrastructures des mondes automobiles : autodromes et circuits

2022

Circuits et courses automobiles dans la France du Nord : « le territoire du vide » ? (XIXe-XXIe siècle)

2022

L’histoire des circuits automobiles dans le Nord de la France s’apparente à ce jour à un « territoire du vide ». Une historiographie peu conséquente, des corpus archivistiques incertains, une distribution « historique » des pratiques et du spectacle sportif régional qui repose encore largement sur les « sports de base » et les sports collectifs, rendent ces « mondes automobiles » peu visibles. Il s’agira ici, à partir d’une approche spatiale, d’en retracer la genèse et d’inscrire leur développement ainsi que leurs usages dans une temporalité étirée (XIXe-XXIe siècles).

Selective Disintegration–Milling to Obtain Metal-Rich Particle Fractions from E-Waste

2022

This research was supported by ERDF project no. 1.1.1.1/20/A/139 “Development of sustainable recycling technology of electronic scrap for precious and non-ferrous metals extraction”. The project was co-financed by REACT-EU funding to mitigate the effects of the pandemic crisis. The article was published with the financial support from the Riga Technical University Research Support Fund. This research was also supported by the Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Program H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2. The authors w…

Effects of different circuit training protocols on body mass, fat mass and blood parameters among overweight adults

2015

The benefits of regular exercise are known for a long time, but the mechanisms underlying the exercise mode recommendations for specific chronic cardiovascular diseases remains unclear. The aim of this study was to evaluate and compare the effects of different circuit training protocols in sedentary overweight adults.

Dysfunction of the mesolimbic circuit to food odors in women with anorexia and bulimia nervosa: A fMRI study

2019

Brain reward dysfunction in eating disorders has been widely reported. However, whether the neural correlates of hedonic and motivational experiences related to food cues are differentially affected in anorexia nervosa of restrictive type (ANr), bulimia nervosa (BN), and healthy control (HC) participants remains unknown. Here, 39 women (14 ANr, 13 BN, and 12 HC) underwent fMRI while smelling food or non-food odors in hunger and satiety states during liking and wanting tasks. ANr and BN patients reported less desire to eat odor-cued food and odor-cued high energy-density food (EDF), respectively. ANr patients exhibited lower ventral tegmental area (VTA) activation than BN patients to food od…

Demo 19. Funcionamiento de un timbre

2013

Objetivo: Entender el funcionamiento de un timbre.

An Energy-Autonomous Wireless Sensor with Simultaneous Energy Harvesting and Ambient Light Sensing

2021

Wireless sensor nodes (WSNs) are generally powered by batteries, which results in a substantial limitation to the places where the nodes can be installed, to the maximum number of deployable devices, and to the node lifetime. To meet the demand for Internet-of-Things (IoT) applications that require a large number of maintenance-free, low cost, wireless sensor nodes, this paper proposes a wireless sensor platform with a single photovoltaic transducer that performs the dual role of harvesting energy and sensing ambient light. This dual use allows even smaller and cheaper nodes that do not require any form of supporting external power, with a reduced component count. The device implements off-…

A magnetostrictive generator for sensors network

2017

In this paper we present a vibration harvesting electric power generator based on magnetostrictive effect for sensors network in hazardous area and we validate it experimentally. The generator has been designed by using Dynamic Preisach hysteresis Model (DPM). DPM is a development of classical Preisach Model which is able to include dynamical features in the mathematical model of hysteresis. We measure the output power capability of the generator and we estimate its power density generation capability.