Dynamic Estimation
Mostrando 1-12 de 121 artigos, teses e dissertações.
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1. Adaptive Filtration of Parameters of the UAV Movement Based on the TDOA-Measurement Sensor Networks
ABSTRACT: In modern conditions unmanned aerial vehicles (UAVs) generate new classes of threats, including their use for terrorist purposes. A feature of modern UAVs is the ability to perform sudden maneuvers and to keep the same position in the point in space. For the description of the UAV movement with various types of maneuver it is used a rectangular coo
J. Aerosp. Technol. Manag.. Publicado em: 26/08/2019
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2. Hydrostatic Equilibrium between Soil Samples and Pressure Plates Used in Soil Water Retention Determination: Consequences of a Questionable Assumption
ABSTRACT Soil water retention is among the soil hydraulic properties most routinely measured in studies of soil physics and related areas. This property is used in dynamic simulations of vadose zone processes such as soil water availability, surface boundary processes of evaporation and infiltration, and the fate of soil pollutants. The most common measureme
Rev. Bras. Ciênc. Solo. Publicado em: 29/07/2019
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3. Integrated Guidance and Control of Multiple Interceptor Missiles Based on Improved Distributed Cooperative Control Strategy
ABSTRACT In this study, an improved cooperative integrated guidance and control (IGC) design method is proposed based on distributed networks to address the guidance and control problem of multiple interceptor missiles. An IGC model for a leading interceptor is constructed based on the relative kinematic relations between missiles and a target and the kinema
J. Aerosp. Technol. Manag.. Publicado em: 02/05/2019
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4. Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate
Resumo O comportamento elástico do concreto é estimado a partir de sua resistência a compressão ou determinado por ensaios estáticos ou dinâmicos. Como a maioria das normas não consideram o teor de umidade interna do concreto e desconsideram o uso de agregados reciclados ao propor equações para a estimativa do módulo de elasticidade, é frequente s
Ambient. constr.. Publicado em: 2019-04
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5. Characterization of a pediatric rotary blood pump
Abstract Introduction A ventricular assist device (VAD) is an electromechanical pump used to treat heart failures. For designing the physiological control system for a VAD, one needs a mathematical model and its related parameters. This paper presents a characterization procedure for determining the model parameter values of the electrical, mechanical, and
Res. Biomed. Eng.. Publicado em: 29/11/2018
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6. Modeling of stem form and volume through machine learning
Abstract Taper functions and volume equations are essential for estimation of the individual volume, which have consolidated theory. On the other hand, mathematical innovation is dynamic, and may improve the forestry modeling. The objective was analyzing the accuracy of machine learning (ML) techniques in relation to a volumetric model and a taper function f
An. Acad. Bras. Ciênc.. Publicado em: 18/10/2018
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7. HPLC method development and validation for the estimation of Axitinib in rabbit plasma
ABSTRACT A rapid, sensitive, and accurate high performance liquid chromatography for the determination of Axitinib (AN) in rabbit plasma is developed using crizotinibe as an internal standard (IS). Axitinib is a tyrosine kinase inhibitor, used in the treatment of advanced kidney cancer, which works by slowing or stopping the growth of cancer cells. The chrom
Braz. J. Pharm. Sci.. Publicado em: 26/10/2017
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8. TOPOGRAPHIC ASPECTS IN THE SPATIAL AND TEMPORAL DYNAMIC OF NET RADIATION
ABSTRACT: The measurements obtained by remote sensing are influenced by issues related to relief. Based on that, this paper aims to analyze the spatial and temporal dynamics of the net radiation (Rn), considering the influence of topographic parameters on it, in Edgárdia Experimental Farm (FEE). It was used the methodology based on the SEBAL algorithm (Surf
Eng. Agríc.. Publicado em: 2017-09
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9. Neurocognitive aspects of body size estimation - A study of contemporary dancers
Abstract Dancers use multiple forms of body language when performing their functions in the contemporary dance scene. Some neurocognitive aspects are involved in dance, and we highlight the aspect of body image, in particular, the dimensional aspect of the body perception. The aim of this study is to analyze the perceptual aspect of body image (body size est
Motriz: rev. educ. fis.. Publicado em: 2017-03
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10. Estimation Uncertainties in the Optical Signal-to-Noise Ratio Network Optimization
In this work, we investigate the effects of estimation uncertainties in the optimization of the optical signal-to-noise ratio (OSNR) at the wavelength division multiplexing (WDM) optical networks. The OSNR optimization increases the network throughput and energy efficiency and it enables to minimize the number of retransmissions by higher layers. The OSNR op
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2016-03
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11. Comparison of the Incident Solar Energy and Battery Storage in a 3U CubeSat Satellite for Different Orientation Scenarios
ABSTRACT In CubeSats, because the size is limited, the estimation of the incident solar energy according to the orbital parameters and satellite attitude is more critical for the design process of the electrical power system. This estimation is helpful either for sizing of the power sources and energy storage or for defining the operation modes of the CubeSa
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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12. HYDRODYNAMICS OF PLATE COLUMN FOR ENZYMATIC REACTIONS OF OIL
Abstract This work describes the hydrodynamics of a plate column of 5 cm inner diameter and 2.75 m height, operated in a semi-batch manner using an oil-water system especially important for enzymatic catalyzed reactions. The parameters such as dispersed phase superficial velocity, plate orifice size, number of nozzles, nozzle size and plate spacing, affectin
Braz. J. Chem. Eng.. Publicado em: 2015-12