Results 11 to 20 of about 701,217 (307)
Investigating Orbital Configurations for a LEO Satellite Telephony Constellation over the Territory of Iran [PDF]
علوم، فناوری و کاربردهای فضایی, 2022 In this paper, we investigate the orbital characteristics of a constellation consisting of 24 LEO satellites. All the configurations are based on the Walker Delta model, which include single- regulated (one constellation) and double- regulated ...
Mohammad Haji Jafari, Sahar Aminabadi
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Ciencias Sociales y Educación, 2017 The main objective of this paper is to analyse how the characteristics of professors affect students’ academic performance. To do so, we analyse a sample of recollected data from 3219 students and twelve professors from the Universitat Autònoma de ...
Carmen-Pilar Martí-Ballester
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Variability of transient elastography-based spleen stiffness performed at 100 Hz
European Radiology Experimental, 2023 Background Spleen stiffness measurement (SSM) performed by transient elastography at 100 Hz is a novel technology for the evaluation of portal hypertension in advanced chronic liver disease, but technical aspects are lacking.
Angelo Armandi +12 more
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Robust Bearing-Only Localization Using Total Least Absolute Residuals Optimization
Complexity, 2020 Robust techniques critically improve bearing-only target localization when the relevant measurements are being corrupted by impulsive noise. Resistance to isolated gross errors refers to the conventional least absolute residual (LAR) method, and its ...
Ji-An Luo +2 more
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Optimal Lp-Metric for Minimizing Powered Deviations in Regression [PDF]
, 2007 Minimizations by least squares or by least absolute deviations are well known criteria in regression modeling. In this work the criterion of generalized mean by powered deviations is suggested.
Lipovetsky, Stan
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Croatian Operational Research Review, 2014 Motivated by the method for color image segmentation based on intensity and hue clustering proposed in [26] we give some theoretical explanations for this method that directly follows from the natural connection between the maximum likelihood approach ...
Petar Taler, Kristian Sabo
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A Monte Carlo Comparison of Regression Estimators When the Error Distribution is Long-Tailed Symmetric [PDF]
, 2009 The performances of the ordinary least squares (OLS), modified maximum likelihood (MML), least absolute deviations (LAD), Winsorized least squares (WIN), trimmed least squares (TLS), Theil’s (Theil) and weighted Theil’s (Weighted Theil) estimators are ...
Mutan, Oya Can, Şenoğlu, Birdal
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Fast charging load guidance strategy based on adjustable charging service fee
IET Generation, Transmission & Distribution, 2022 Aiming at solving the problem of the deterioration of the voltage quality of the distribution network caused by the fast charging load of large‐scale electric vehicles, a fast charging load guidance strategy based on adjustable tiered charging service ...
Meixia Zhang +3 more
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Functional Equations for Calculating the Properties of Low-GWP R1234ze(E) Refrigerant
Energies, 2020 Legal requirements for the use of refrigerants increasingly restrict the use of high-global warming potential (GWP) refrigerants. As a result, there is a growing interest in natural refrigerants and in those belonging to the hydrofluoroolefins (HFO ...
Piotr Życzkowski +4 more
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Assimilation of Multi-Source Precipitation Data over Southeast China Using a Nonparametric Framework
Remote Sensing, 2021 The accuracy of the rain distribution could be enhanced by assimilating the remotely sensed and gauge-based precipitation data. In this study, a new nonparametric general regression (NGR) framework was proposed to assimilate satellite- and gauge-based ...
Yuanyuan Zhou +4 more
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