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https://purl.org/pe-repo/ocde/ford#2.02.04 6 Pandemics 4 COVID-19 2 Computational modeling 2 Mathematical models 2 Probabilistic logic 2 Solid modeling 2 más ...
Mostrando 1 - 16 Resultados de 16 Para Buscar 'parallel generation electrical*', tiempo de consulta: 1.37s Limitar resultados
1
artículo
This paper presents the automated parallel noncontact manipulation of glass beads ranging from 30 up to 300 μm in size under water. Non-contact micromanipulation is performed by generating controllable laser-induced thermocapillary flows that are capable of dragging the beads. Automated manipulation process is achieved with visual servoing in order to accurately manipulate the beads in a parallel and high-speed manner. Image correlation allowed to detect the bead positions and to provide these positions to a mirror scanner that addressed the IR laser beam at a certain position from the bead. By scanning the laser beam from one bead to another, automated parallel manipulation of beads at speeds in the range of mm·s-1 was demonstrated.
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artículo
Apparition of abnormal vasculature is common at the first phases of tumor growth. It is known as angiogenesis having the whole process various phases. This is also seen as a random migration of cells that require the flux of blood in order to accomplish the consolidation of tumor. This paper provides a hybrid approach by the which it is assumd that sprouting angiogenesis has a well-defined part that would have to be described by classical electrodynamics. A closed-form model that allows to perform computational simulations is presented. In this manner, while the electrically charged compounds such as ions (cations and anions) are described by Coulomb forces, nano particles can be well described by the diffusion equation. According to the model nanoparticles would interact to ions by generating an electric work to cancel cell-ion interactions at the tubular formation of angiogenesis. With...
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artículo
This paper present a model of software engineering to estimate the social distancing with realistic inputs. This might be incorporated in a smart-phone application in order to get an exact estimate of the values of social distancing in times of global pandemic. Attention is paid on the measurement of outdoor scenarios where wind velocity would play an important role to move the aerosols at distances beyond the known social distances. Thus, the dehydration time emerges also as a predictor of risk to get the infection of virus. The proposed software has capabilities to yield numeric values of risk in terms of probabilities. It is expected that once the associated computational program is running then the permanent assessment of potential scenarios would give concrete values of social distancing. In this manner one expects that these values are uploaded at an Internet network.
4
artículo
The abundance of dipoles of glucose in the blood stream would give rise to a pushing out of albumin proteins giving origin to the formation of a biolelectric circuit inside renal glomerulus. In the periods of large amounts of glucose and albumin in blood, kidneys might not be able to filter proteins initializing the interaction protein-protein at the renal glomerulus. From this nephrine and albumin interaction can be seen as a capacitor because the anionic and cationic functions of proteins. This paper have paid attention to the physics of renal glomerulus when it is electrically involved due to the presence of albumin that surpasses the different layers of renal glomeulus becoming a strong indicator of the kidney disease.
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artículo
At the end of first quarter of 2020 it was seen in most countries statistics the beginning of an imminent second wave of pandemic. On January of 2021 it was seen in the data a rapid growth of new infections. In this paper, a geometry-based scheme is presented. In concrete the rectangle and trapezoid shapes are analyzed. From this, a relation between both geometries is extracted in terms of polynomial functions. The resulting characterization of a pandemic in terms of geometric variables is presented. Thus the present model is confronted with official data of USA and India. From the results of this paper, it is strongly believed that entropy might be behind of a global pandemic dynamics.
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artículo
In this paper a mathematical model that focuses at the very beginning of pandemic at Europe is presented. In essence it is assumed that once the virus arrived to Italy then the geographical propagation was done through probabilistic rules among then to Spain. Because of this the model of propagation of Feynman in conjunction to Wiener schemes have been used to model the displacement of virus from Wuhan to Milan as well from Milan to Spain, as seen at the end of 2019 triggering the beginning of European pandemic at January of 2020. As seen at official data Italy and Spain have presented same statistics at the first months of local pandemic. From the usage of the proposed formalism, it is found that the country data are following Gaussian-like distributions due to the space-time propagation of virus.
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artículo
The world is currently experiencing a major pandemic with the SARS-CoV-2 virus in which many patients who suffer and have suffered from this disease are more likely to suffer from hypertension. For this purpose, we have carried out a review of the scientific literature, from which we have collected 105 articles obtained from the following databases: ProQuest, Dialnet, ScienceDirect, Scopus, IEEE Xplore. Subsequently, based on the inclusion and exclusion criteria, 68 articles were systematized, detailing that Machine Learning helps us in the detection and prediction of hypertension in patients with coronavirus, Likewise, the predictive models that allow better detection of hypertension in patients with Covid 19 are “Neural Networks”, “Cox Risk Model”, “Random Forest” and “XGBoost”, detailing the countries and technologies used.
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tesis de grado
El presente trabajo propone establecer si es viable invertir en la creación de una empresa para la comercialización de paneles solares en la provincia de Barranca, departamento de Lima. El calentamiento global y la reducción de Co2 han impulsado a emprender negocios afines a la generación de energía eléctrica a través de métodos no tradicionales. La transición de energías fósiles a energías renovables son cada vez más competitivas; en 10 años se pronostica que todos los coches nuevos serán eléctricos y ejemplo de ello de ello son las empresas como Tesla Motors que ya cuenta con una red de súper cargadores eléctricos instalados en el mundo. Perú depende de los recursos hídricos en la producción de energía eléctrica, por lo que se ha visto en la necesidad de materializar proyectos a costos elevados y con resultados a largo plazo, con el fin de eliminar definitivament...
9
tesis doctoral
La presente Tesis de Investigación Doctoral hace un análisis sistemático, sistémico y armónico del registro del potencial evocado hasta llegar a la codificación de esta señal bioeléctrica para su uso como registro individual específico mediante código de barras. El código nervioso de una señal sensorial, cuyos detalles falta descifrar, está conformado por un conjunto de señales eléctricas que procesan las redes neurales del sistema sensorial, los núcleos subcorticales y la corteza cerebral, el cual es posible analizar y decodificar. Las señales nerviosas sensoriales representan por sí solas el medio exterior, pero sus procesos esenciales son decodificados en la corteza cerebral, donde se activa la información psíquica correspondiente, el decodificar las señales neuronales y su significado. Estas señales se procesan en redes simétricas interconectadas en tiempo real...
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artículo
Recurrent flooding in the mining works, deficiencies in the operation of pumps, unforeseen stoppages, and lack of water availability in the processes, affect the operations in the subway mine. The traditional solution adopted is to wait for maintenance times for its post evacuation, generating stoppages, consumption of water from the wells and inefficiency in the daily water demand. Therefore, this article presents a new approach that will expand the traditional methods by introducing a prediction model using probabilistic methods. This approach will allow the design of an optimal water distribution system, the efficient control in the maintenance and covering of the recirculated water demand inside the mine. Variables describing problems related to pump flow, pressure zoning and the type of pump distribution, either in series or in parallel in the pumping system, will be determined. Als...
11
tesis de grado
Actuators are devices that provides a controlled change in a physical system. They can operate manually, electrically, or by various fluids. Among them, pneumatics actuators have advantages of working with compressible fluids that provides safety and efficient limitations. These are very critical parameters for soft robotics. Rigid actuators are not suitable to substitute muscle functions, hence flexible actuators are appealing. Yet the process to fabricate soft actuators have long iteration until the final product is manufactured and is difficult to design and control due to their natural flexible behavior. 3D printing could be a possible solution. Researchers are exploring feasible solutions with 3D printing material. However, since it’s a new area of research, there is not a large and deep characterization of these materials. This study will focus on the simulation of a hyperelastic...
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tesis de grado
En el presente trabajo se expone el planificación y principio del proyecto “Mega Mercado Municipal de Sullana”, ubicado Sullana, Piura. Este proyecto parte con el estudio y análisis de la problemática de la zona, la cual se basa principalmente, en la necesidad de los comerciantes de tener un lugar de calidad para poder ofrecer sus productos a los consumidores. Para el desarrollo del proyecto se realizo varias visitas de campo para analizar los posibles usuarios y/o beneficiarios para saber sus necesidades y funciones a realizar en el proyecto, ademas de zonas y sub zonas a desarrollar en el proyecto; posteriormente procesaremos la información obtenida mediante cuadros y estadisticas y datos reales sobre los números de puestos comerciales formales y el número de comerciantes informales de cada zona y subzona a la que pertenecen cada uno, tratando de cumplir con la demanda requer...
13
tesis de grado
Universidad Nacional Agraria La Molina. Facultad de Ingeniería Agrícola. Departamento Académico de Recursos Hídricos
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tesis de grado
Universidad Nacional Agraria La Molina. Facultad de Ingeniería Agrícola. Departamento Académico de Recursos Hídricos
15
tesis de grado
The present research consists of the mechanical and electronic design of a hand prosthesis that is composed of a parallel robot platform to perform the movement of the wrist, on this platform 3 universal joints will be mounted that will be connected to the base of 3 linear actuators that represent a prismatic joint for the extension and flexion movement of which will be cont rolled by an Arduino Mega type board. The design of the prosthesis consists of a base that represents the palm of the hand joined to the proximal phalanx, which will be attached to the medial phalanx and finally attached to the distal phalanx assembled by means of mechanical couplings that will represent the fingers of a human hand, the mechanism for its movement will be through the medial internal link and proximal internal link to the interior of each finger interconnecting each phalanx and finally connec ted to th...