Results 71 to 80 of about 159,843 (190)
Impingement of Water Droplets on an Ellipsoid with Fineness Ratio 5 in Axisymmetric Flow [PDF]
The presence of radomes and instruments that are sensitive to water films or ice formations in the nose section of all-weather aircraft and missiles necessitates a knowledge of the droplet impingement characteristics of bodies of revolution.
Brun, Rinaldo J. +2 more
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Вестник Дагестанского государственного технического университета: Технические науки, 2019 Objectives The purpose of the study is to obtain an expression for determining the coordinates of the earthquake focus using the ellipsoid method, as well as testing the possibility of using the method using the figures of the second order of the ...
T. G. Aslanov, U. A. Musaeva
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Novel Calibration Algorithm for a Three-Axis Strapdown Magnetometer
Sensors, 2014 A complete error calibration model with 12 independent parameters is established by analyzing the three-axis magnetometer error mechanism. The said model conforms to an ellipsoid restriction, the parameters of the ellipsoid equation are estimated, and ...
Yan Xia Liu +3 more
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Известия высших учебных заведений России: Радиоэлектроника, 2016 The estimations of the bound of the quality factor for electrically small antennas inscribed in a cylinder and the triaxial ellipsoid are obtained. For antennas whose shape is far from spherical, the above estimation allows to refine the Chu-McLean limit.
S. V. Ballandovich +3 more
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Ellipsoidal set-membership estimation of systems with logarithmic quantized control input
AutomatikaFor networked control systems with logarithmic quantization, the state estimation is important. Different from the traditional state estimation methods where the uncertainties are assumed to have known probability distributions, the set-membership ...
Mingming Ji, Zhixiong Zhang
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Standard deviations of coordinates due transformation between ellipsoids [PDF]
Podzemni Radovi, 2017 Transformation between ellipsoids also called datum transformation implies coordinate conversion from one ellipsoid to another ellipsoid, most frequently to be done by Helmert seven-parameter transformation.
Ganić Aleksandar +2 more
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Science and Engineering of Composite Materials, 2018 In order to calculate the effective permittivity of a mixture with multilayer ellipsoids, this paper presents a self-consistent approximation (SCA) on the basis of the Bruggeman’s analytical model.
Yuan Liming +3 more
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Automated composite ellipsoid modelling for high frequency GTD analysis [PDF]
The preliminary results of a scheme currently being developed to fit a composite ellipsoid to the fuselage of a helicopter in the vicinity of the antenna location are discussed under the assumption that the antenna is mounted on the fuselage.
Klevenow, F. T. +3 more
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Erratum: Structure model index does not measure rods and plates in trabecular bone
Frontiers in Endocrinology, 2015 Science eProduction Office
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The Influence of Orbital Element Error on Satellite Coverage Calculation
International Journal of Aerospace Engineering, 2018 This paper studies the influence of orbital element error on coverage calculation of a satellite. In order to present the influence, an analysis method based on the position uncertainty of the satellite shown by an error ellipsoid is proposed.
Guangming Dai +5 more
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