Results 51 to 60 of about 985,022 (264)

Estratégias PWM Para Máquina de Indução Hexafásica

Eletrônica de Potência, 2005
Este artigo investiga o desempenho do acionamento da máquina de indução hexafásica (MIH) utilizando um inversor de seis braços. Três técnicas de modulação PWM vetorial para gerar os sinais de comando de um inversor de seis braços são apresentadas e os ...
Clayton R. da Silva, Maurício B.R. Corrêa, Cursino B. Jacobina, Edison R.C. da Silva   +3 more
doaj   +1 more source

Physics-informed neural networks for high-speed flows

Computer Methods in Applied Mechanics and Engineering, 2020
In this work we investigate the possibility of using physics-informed neural networks (PINNs) to approximate the Euler equations that model high-speed aerodynamic flows. In particular, we solve both the forward and inverse problems in one-dimensional and
Zhiping Mao, Ameya Dilip Jagtap, G. Karniadakis   +2 more
semanticscholar   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source

Projeto E Desenvolvimento De Um Sistema Inversor Para Fontes De Energia Renovável Com Conectividade À Rede Elétrica

Eletrônica de Potência, 2007
Este trabalho apresenta um inversor com potência nominal de 1kW, desenvolvido para aplicação em fontes de energia renovável. O equipamento pode operar em dois modos: autônomo ou conectado à rede elétrica com controle do fluxo de potência.
Ruben Barros Godoy, Helder Zandonad Maia, Faete Jacques Teixeira Filho, Luigi Galotto Júnior, João Onofre Pereira Pinto, Gilberto Shimada Tatibana   +5 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Análise de um inversor trifásico a quatro chaves

Eletrônica de Potência, 1997
Neste trabalho é estudado o inversor trifásico a quatro chaves (FSTPI) com ênfase na modulação por largura de pulsos (PWM) com implementação digital. Técnicas de modulação PWM com abordagens vetorial e escalar são aplicadas à estrutura e estabelecida a ...
Cursino B. Jacobina, Edison R. C. da Silva, Antonio M. N. Lima, Ricardo L. A. Ribeiro   +3 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Algunas consideraciones sobre el marco jurídico de protección del inversor en derecho español

Via Inveniendi Et Iudicandi, 2016
La protección del inversor y la eficiencia de los mercados de valores son dos principios de política legislativa básicos dentro del Derecho del Mercado de Valores, tal y como se refleja en el artículo 13 de la Ley del Mercado de Valores de 1988.
Maria Valmaña Ochaita
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source