Results 81 to 90 of about 3,466,070 (286)

Retificador Trifásico Híbrido Operando Com Controledigital e Modulação por Histerese

Eletrônica de Potência, 2008
Neste artigo uma modulação por histerese digital é proposta e analisada usando dispositivo FPGA (Field Programmable Gate Array) e linguagem VHDL (Hardware Description Language), aplicada em um retificador trifásico híbrido composto por retificadores ...
Jurandir de O. Soares, Carlos A. Canesin, Luiz C. de Freitas, Flávio A. S. Gonçalves   +3 more
doaj   +1 more source

Digital Automatic Control System with PID Controller

Elektronika ir Elektrotechnika, 2011
The design process of digital automatic control system with PID controller is considered. The solution of problems related with implementation of PID control algorithm into general purpose 8-bit microcontroller is discussed. Simulation results demonstrating performance of system are presented. Ill. 4, bibl. 6, tabl.
Petrovas, Andrius, Lisauskas, Saulius, Rinkevičienė, Roma   +2 more
openaire   +2 more sources

Economic Liberty, Price Control, and Environmental Harm [PDF]

, 2018
One core question in contemporary political economy is whether economic liberties should be constitutionally protected as basic rights. In this article I do not provide a positive argument for the view that economic liberties are basic rights.
Martins, Rafael
core  

A new method to control the invasive sun corals (Tubastraea spp.): Underwater compressed‐air blasting

Ecological Solutions and Evidence, Volume 7, Issue 2, April–June 2026.
Underwater compressed‐air blasting is a novel method developed to control invasive sun corals (Tubastraea spp.). The technique removes coral soft tissue without fragmenting colonies, reducing the risk of regeneration and accidental spread. This approach offers a safer and practical tool for managing invasive corals in natural reefs and biofouling ...
Gustavo H. Piazzaroli, Fábio H. C. Sanches, Sérgio A. Coelho‐Souza, María Soledad López, Fabio S. Motta, Guilherme H. Pereira‐Filho   +5 more
wiley   +1 more source

Controle Digital Simplificado para um Condicionador Unificado de Qualidade de Energia

Eletrônica de Potência, 2011
Este artigo propõe um sistema de controle digital simplificado para um condicionador unificado de qualidade de energia (UPQC). O UPQC é composto por um filtro ativo paralelo (FAP), empregado para o condicionamento da corrente drenada da rede, e por um ...
Josué Dias, Tiago D. C. Busarello, Leandro Michels, Cassiano Rech, Marcello Mezaroba   +4 more
doaj   +1 more source

In Vitro Antimicrobial Activity and In Vivo Intestinal Barrier Regulation by Commiphora leptophloeos Bark Extract in 5‐Fluorouracil–Induced Mucositis

Chemistry &Biodiversity, Volume 23, Issue 4, April 2026.
ABSTRACT This study evaluated the phytochemical composition, antimicrobial activity, and in vivo protective effects of the hydroethanolic extract from Commiphora leptophloeos stem bark (HECL) against 5‐fluorouracil (5‐FU)‐induced intestinal mucositis. Despite the extensive traditional use of C.
Stphannie Jamyla de Araújo Barbosa, Renato Dantas‐Medeiros, Susana Barbosa Ribeiro, Amanda Silveira da Silva, Lucas Vinicius Souza de Carvalho, Rafaela Torres Dantas da Silva, Gerlane Coelho Bernardo Guerra, Raimundo Fernandes de Araújo Júnior, Nizyara Costa da Silva, Raphael Victor Silva Andrade, Gabrielle Marques de Paiva, Silvana Maria Zucolotto, Rafaela Alcindo Silva de Sousa Fé, Maria Laura de Souza Lima, Raphaël Grougnet, Sergio Ortiz, Ana Caroline Zanatta, Aurigena Antunes de Araújo   +17 more
wiley   +1 more source

Local climate and genetic influence on intraspecific variation in torpor physiology of a cave‐roosting bat

Functional Ecology, Volume 40, Issue 4, Page 857-867, April 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Many small endotherms employ torpor as a survival strategy to reduce energy expenditure during periods with low food availability and cold temperatures. The expression and physiology of torpor can vary substantially within species because of phenotypic plasticity and ...
Nicholas C. Wu, Tomás Villada‐Cadavid, Christopher Turbill   +2 more
wiley   +1 more source

Abuso digital nas relações amorosas: um estudo das representações sociais com universitários brasileiros

Ciencias Psicológicas, 2020
O presente estudo objetivou apreender as representações sociais (RS) de universitários brasileiros acerca do abuso digital nos relacionamentos amorosos (ADRA).
Jaqueline Gomes Cavalcanti , Maria da Penha de Lima Coutinho , Adriele Vieira de Lima Pinto   +2 more
doaj  

Sedimentary geology of the Middle Carboniferous of the Donbas region (Dniepr-Donets basin, Ukraine) [PDF]

, 2015
Peer reviewedPublisher ...
Abels, Hemmo A., Boekhout, Flora, Bosch, Wolter, Geluk, Mark, Hamers, Maartje, Kitchka, Alexander, Stephenson, Randell A., van der Meer, Douwe G., van Hinsbergen, Douwe J.J.   +8 more
core   +2 more sources

Breaking Barriers in High‐Order Spectral Methods: The Intrinsic Matrix Approach

International Journal for Numerical Methods in Engineering, Volume 127, Issue 5, 15 March 2026.
ABSTRACT This paper introduces a unified framework in Hilbert spaces for applying high‐order differential operators in bounded domains using Chebyshev, Legendre, and Fourier spectral methods. By exploiting the banded structure of differentiation matrices and embedding boundary conditions directly into the operator through a scaling law relating ...
Osvaldo Guimarães, José R. C. Piqueira
wiley   +1 more source