Results 11 to 20 of about 410 (242)

Fabricação de sensores com rede de Bragg em fibra ótica: análise experimental e aplicações no ensino [PDF]

Revista Brasileira de Ensino de Física
Resumo Este estudo investiga a influência do tipo de fibra ótica (G652 e GF1) e do processo de hidrogenação (presente ou não) na qualidade de sensores óticos baseados em redes de Bragg (FBG).
Gustavo Macioski, Marcelo Henrique Farias de Medeiros   +1 more
doaj   +1 more source

Rede de sensores móveis

, 2008
Tese de mestrado integrado. Engenharia Electrotécnica e de Computadores - Major Automação. Faculdade de Engenharia.
openaire   +3 more sources

ANÁLISIS DE LOS SECRETOS COMPARTIDOS PARA LA AUTENTICACIÓN DE NODOS EN LAS WIRELESS SENSOR NETWORKS MEDIANTE EL ALGORITMO DE SHAMIR

Ciencia e Ingeniería Neogranadina, 2008
Una nueva generación de redes está naciendo a partir de la evolución de dispositivos móviles de comunicación y de la convergencia de las diferentes tecnologías de redes en Internet.
Miguel Alfredo Acedo Arias, María Aurora Molina Vilchis, Ramón Silva Ortigoza, Magdalena Marciano Melchor, Edgar Alfredo Portilla Flores   +4 more
doaj   +3 more sources

Monitoreo en línea de transformadores de potencia. Una revisión crítica de sensores de temperatura, humedad del aceite y gases disueltos

Tecnología en Marcha, 2021
Los transformadores de potencia son uno de los activos más importantes que conforman las redes eléctricas. Cuando uno de estos activos presenta una falla repentina que involucra la suspensión del suministro de electricidad a los centros de consumo, puede
Santiago Salamanca, Alexander Céspedes, Guillermo Aponte   +2 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Redes inalámbricas de sensores para detección temprana de incendios forestales

Revista Científica Ciencia y Tecnología, 2018
En el presente trabajo se implementa un sistema de detección de incendios forestales denominado Forest Fire System, en el que se aplica redes de sensores inalámbricos (WSN).
Byron Oviedo, Emilio Zhuma Mera, Ángel Torres Quijije, María Vicuña Gaibor, Cinthia Solís López   +4 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source