The Acquisition of Semantic Relationships between words

The study of semantic relationships has revealed a close connection between these relationships and the morphological characteristics of a language. Morphology, as a subfield of linguistics, investigates the internal structure and formation of words. By delving into the relationship between semantic relationships and language morphology, we can gain deeper insights into how the underlying structure of words contributes to the interpretation and comprehension of language. This paper explores the dynamic interplay between semantic relationships and the morphological aspects of different languages, by examining the intricate relationship between language morphology and semantic relationships, valuable insights can be gained regarding how the structure of words influences language comprehension.Comment: 3 page

Design of a switch-mode power supply with soft switching and analog control

International audienceIn high-power applications to meet high-efficiency and green standards. Some power-supply designers have found it easier to use a D/DC, full-bridge converter. This is because this kind of converter can obtain zero-voltage switching on the primary side of the converter reducing switching losses, and EMI and increasing overall efficiency. The purpose of this paper is the design of a switch mode power supply for industrial applications (vehicle battery charger, power supply for a helicopter…,). This Full Bridge DC/DC converter controlled by an analog control. This shows several advantages as simple implementation, compactness with satisfactory performance. The simulation results obtained are compared with a Full Bridge Converter controlled by UCC28950 which is a digital Texas Instruments component. The designed power supply operates with an efficiency of more than 90%

Electrical and thermal modeling and aging study of a C2M0025120D silicon carbide-based power MOSFET transistor

International audienceIn most papers studies about MOSFETs aging are treated from a materiel point of view, in this paper we consider the electrical aspects that contribute to such degradation. Two important degradation mechanisms are proposed related to the transistor bias and the increase of its temperature. This study consists to push the studied transistor to operate in an aging mode by imposing particular bias conditions and excessive junction temperature. Based on some electrical quantities, such as drain leakage current and on the junction temperature, the behavior of the transistor is deduced when operating in aging mode. The simulation results obtained show that during these particular operations, the junction temperature increases, which may destroy the transistor

Towards a Smart Grid Communication

AbstractSmart grids are one of the technological answers to the ‘3 x 20’ objective of the 2020 climate and energy package of the European Union: 20% renewable energies, saving energy and reducing emissions green house gas. The effective insertion of the production of renewables of intermittent nature (wind and) photovoltaic) and new uses of electricity (heat pumps, electric vehicles...) in the electric system requires the design of equipment “smart’, thanks to the new technologies of information and communication. [1,2, 5)].A major challenge is to be able to use five key technology area :Integrated Communications, sensing and measuring,advanced components, advanced control methods, improved Interfaces and decision support in an industrial context demanding in terms of quality, safety, security and cost.This paves the way for researchers to propose relevant and sustainable solutions.This paper tries to focuss on the importance of Information and Communication Technology (ICT), which ensures a two way communications with a collection of secure and reliable data from sensors and meters located throughout the grid and transmitted directly to the grid operator's control room

PATH TRACKING FOR THE CONVOY OF AUTONOMOUS VEHICLES BASED ON A NON-LINEAR PREDICTIVE CONTROL

International audienceIn this paper, a nonlinear predictive control of a platoon of several vehicles is proposed by using non-linear robotic form model of the vehicles. The model used represents the longitudinal, lateral and yaw movement for each vehicle in the fleet. this control approach allows controlling the fleet, uses the available information, ensures a safe distance between vehicles to avoid collisions and follows the path of the leader. The robustness of the control will be studied in order to assess the different errors occurring in the estimated parameters values

Photovoltaic: Perovskite fever: Is Perovskite the future of solar cells?

Perovskites, this somewhat "barbaric" term derived from the name of a 19th century Russian mineralogist, Lev Perovski, is not yet known to the public. But in labs around the world researchers are feverishly active around this family of crystals that promise to revolutionize the conversion of solar energy into electricity.Originally the perovskite is a crystal composed of calcium, titanium and oxygen. However, the term is now used to refer to other chemical compounds with identical structures. About ten years ago these materials, then used to make certain electronic components, suddenly emerged as potential candidates for the replacement of expensive silicon cells in solar panels. The hope was mainly based on the cost of perovskite cells, which are significantly lower than those made with silicon crystals and which currently equip most photovoltaic installations  </p