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Mostrando publicaciones 44-63 de 5295
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A mathematical model and simulation scenarios for T and B cells immune response to severe acute respiratory syndrome-coronavirus-2
(2023)Severe acute respiratory syndrome coronavirus is a type 2 highly contagious, and transmissible among humans; the natural human immune response to severe acute respiratory syndrome-coronavirus-2 combines cell-mediated ...
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A mesoscale modeling analysis of green roof impact in the thermal field in the mediterranean Chilean urban areas
(2023)In the smart cities context, using green roofs can contribute to making cities more resilient, mitigating effects in the urban thermal field, such as urban heat island. In addition, mesoscale models of weather forecasting ...
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A method to construct fruit maturity color scales based on support machines for regression: Application to olives and grape seeds
(2015)Color scales are a powerful tool used in agriculture for estimate maturity of fruits. Fruit maturity is an important parameter to determine the harvest time. Typically, to obtain the maturity grade, a human expert visually ...
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A method to estimate grape phenolic maturity based on seed images
(2014)The timing of the grape harvest has a strong impact on wine quality. A recent line of studies proposes visual seed inspection by a trained expert to determine Phenolic Maturity. In this paper a method is presented to ...
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A model based on clusters of similar color and NIR to estimate oil content of single olives
(2021)Lipid extraction using the traditional, destructive Soxhlet method is not able to measure oil content (OC) on a single olive. As the color and near infrared spectrum are key parameters to build an oil estimation model (EM), ...
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A model for incompressible fluids using finite element methods for the Brinkman problem
(2020)The partial differential equations for fluid flow dynamics based on the Brinkman equations, written in terms of velocity-vorticity and pressure in three dimensions, are essential for predicting climate, ocean currents, ...
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A multi-channel speech enhancement method based on subband affine projection algorithm in combination with proposed circular nested microphone array
(2021)In this paper, a novel multi-channel speech enhancement system is introduced based on a proposed circular nested microphone array (C-NMA) in combination with subband affine projection algorithm (SB-APA). The multi-channel ...
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A multi-directional gradient with bi-geometric calculus to detect contours in images with multiplicative noise
(2018)In this paper a new operator is presented for the detection of contours in images with multiplicative noise, by using the operations introduced in the bi-geometric calculus, since recent results in the literature show that ...
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A multilayer shallow water model for polydisperse reactive sedimentation
(2024)A three-dimensional model of polydisperse reactive sedimentation is developed by means of a multilayer shallow water approach. The model consists of a variety of solid particles of different sizes and densities, and ...
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A new approach to the concept of linearity. Some elements for a multiplicative linear algebra
(2020)An arithmetic based on the multiplication is the base of the Bigeometric (and Multiplicative) Calculus, a type of non-Newtonian Calculus which has had uses in the digital processing of images. In this work, we present the ...
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A new class of differential equations with impulses at instants dependent on preceding pulses. Applications to management of renewable resources
(2012)In this paper, a new type of mathematical model to represent certain processes with impulsive dynamic behavior is introduced. The main assumption is that the next impulse time is determined by three fundamental elements: ...
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A new COVID-19 detection method based on CSK/QAM visible light communication and machine learning
(2023)This article proposes a novel method for detecting coronavirus disease 2019 (COVID-19) in an underground channel using visible light communication (VLC) and machine learning (ML). We present mathematical models of COVID-19 ...
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A new descriptor for person identity verification based on handwritten strokes off-line analysis
(2017)A new descriptor for the verification of people’s identity through the analysis of handwritten text is presented. The proposed descriptor corresponds to a representation of the pattern of writing pressure computed from the ...
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A new fast training algorithm for autoencoder neural networks based on extreme learning machine
(2022)Autoencoders are neural networks that are characterized by having the same inputs and outputs. This kind of Neural Networks aim to estimate a nonlinear transformation whose parameters allow to represent the input patterns ...
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A new genosensor for meningococcal meningitis diagnosis using biological samples
(2018)In this work, a new electrochemical biosensor for DNA detection of bacterial meningitis is proposed. The system is based on specific DNA fragments from the Neisseria meningitidis genome as a probe incorporated on graphite ...
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A new genus and species of leaf miner (Lepidoptera, Gracillariidae) for Chile associated to the native tree Lithraea caustica
(2013)A new genus and species of leaf miner (Lepidoptera, Gracillariidae) for Chile associated to the native tree Lithraea caustica. We propose the new genus and species of Gracillariidae (Lepidoptera) Hualpenia lithraeophaga ...
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A new Internet of things hybrid VLC/RF System for m-Health in an underground mining industry
(2024)This paper proposes a new system based on the Industrial Internet of Things (IIoT) for the monitoring of Mobile Health (m-Health) of workers in the underground mining industry. The proposed architecture uses a hybrid ...
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A new locality and the first record of juvenile specimens of the Sashed Catfish, Galeichthys peruvianus Lütken, 1874 (Pisces, Siluriformes, Ariidae), in northern Chile
(2021)We report the observation of two juvenile specimens of Sashed Catfish, Galeichthys peruvianus Lütken, 1874, south of Arica, Chile, which expands the current known distributional range of the species, by adding a previously ...
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A new method for evaluating knowledge, beliefs, and neuromyths about the mind and brain among italian teachers
(2020)Teachers often face situations that require them to apply knowledge about the mind and brain to education. Past studies have indicated that even if teachers show interest in cognitive neuroscience, they show high rates of ...
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A new pachyrukhine (Notoungulata: Typotheria) from the late Early Miocene of south-central Chile
(2024)Here, we studied several Pachyrukhinae (Mammalia: Notoungulata: Typotheria: Hegetotheriidae) fossils recovered from the late Early Miocene (Santacrucian SALMA) beds of the Cura-Mallín Formation at the Laguna del Laja (Biobío ...