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Mostrando ítems 4111-4120 de 9601
“Diseño De Un Sistema Computarizado Inteligente Para La Detección Sísmica Y Alerta Temprana Con Comunicación Ethernet Y Tecnología Móvil”
(Universidad De Guayaquil.Facultad De Ciencias Matemáticas Y Físicas.Carrera De Ingeniería En Networking Y Telecomunicaciones, 2017-12-14)
Los movimientos sísmicos son fenómenos naturales que ocurren con frecuencia en el mundo y son imposible de predecir, por lo tanto, el estar preparados resulta vital, ya que es difícil que durante un sismo se puedan tomar ...
Cellular and molecular changes associated with somatic embryogenesis induction in Agave tequilana
(2012)
In spite of the importance of somatic embryogenesis for basic research in plant embryology as well as for crop improvement and plant propagation, it is still unclear which mechanisms and cell signals are involved in acquiring ...
Sistema embebido para medir distancias entre objetos.
(2014-12-09)
El propósito de esta tesina es presentar el desarrollo alcanzado con la integración de un micro controlador de 8 bits, basado en el conjunto de instrucciones MCS-51™, con un par de sensores de distancia.
El primer sensor ...
Intrahippocampal Inoculation of Aβ1–42 Peptide in Rat as a Model of Alzheimer’s Disease Identified MicroRNA-146a-5p as Blood Marker with Anti-Inflammatory Function in Astrocyte Cells
(MDPI, 2023)
Circulating microRNAs (miRNAs) have aroused a lot of interest as reliable blood diagnostic biomarkers of Alzheimer's disease (AD). Here, we investigated the panel of expressed blood miRNAs in response to aggregated ...
Análisis teórico para el Diseño de un fotodetector no lineal ultra-rápido en la banda c de telecomunicaciones ópticas hecho a partir de una guía de onda de múltiples pozos cuánticos
(2019-09-04)
Este trabajo pretende obtener por medio de estudios teóricos y computacionales las características optimas para una guía de onda (WaveGuide o WG) rectangular basada en semiconductores que conforman múltiples pozos cuánticos ...
Reduced complexity MLSD receivers for nonlinear optical channels
(Institute of Electrical and Electronics Engineers, 2014-02)
We present a novel maximum likelihood sequence detection (MLSD) receiver structure for nonlinear channels. This scheme is derived by treating the NLC as a multiple input/multiple output system. Then, orthogonal signal ...
Determination of anaerobic threshold through heart rate and near infrared spectroscopy in elderly healthy men
(Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia, 2013-10-01)
BACKGROUND:Aging leads to low functional capacity and this can be reversed by safe and adequate exercise prescription. OBJECTIVE:The aim of this study was to identify the anaerobic threshold (AT) obtained from the V-slope ...
Aplicação da função densidade de probabilidade beta no diagnóstico de defeitos de montagem em redutores de engrenagens
(Universidade Estadual Paulista (Unesp), 2004-02-20)
Este trabalho explana detalhadamente uma técnica de monitoramento baseada na função densidade de probabilidade Beta que analisa o engrenamento, dente a dente, onde a detecção da anomalia é feita através de um parâmetro ...
Carbon Nanotubes Paste Electrodes as new Detectors for Capillary Electrophoresis
(Elsevier Science, 2005-07)
Carbon nanotubes paste electrodes (CNTPE) prepared with short (1–5 μm length) and long carbon nanotubes (5–20 μm length) of 20–50 nm diameter have demonstrated to be highly useful as detectors in flow injection analysis ...
Effects of hyperbaric oxygen treatment on auditory hair cells after acute noise damage
(SPRINGER, 2011)
Acute acoustic trauma (AAT) is a sudden sensorineural hearing loss caused by exposure of the hearing organ to acoustic overstimulation, typically an intense sound impulse, hyperbaric oxygen therapy (HOT), which favors ...