Results 11 to 20 of about 227,472 (209)
Inefficiency in packing squares with unit squares
Journal of Combinatorial Theory, Series A, 1978 AbstractIt is shown that, in packing a square of side n + 12 with unit squares, the wasted space always has area ⪢ n12. This answers a question of Erdös and Graham.
K. F. Roth, Robert C. Vaughan
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Rigorous packing of unit squares into a circle. [PDF]
J Glob Optim, 2019 This paper considers the task of finding the smallest circle into which one can pack a fixed number of non-overlapping unit squares that are free to rotate.
Montanher T +4 more
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Estimation of transmission line parameters by using two least‐squares methods
IET Generation, Transmission & Distribution, 2021 This work proposes two new approaches based on the ordinary least‐squares method and the total least‐squares method to estimate the parameters of a balanced three‐phase transmission line using voltage and current measurements from phasor measurement unit.
Felipe P. Albuquerque +4 more
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Parameters Estimation for the Unit log-log Distribution
Cumhuriyet Science Journal, 2023 In this paper, point estimation problem of two unknown parameters of the unit log-log distribution is examined. For point estimation, six methods of estimate such as maximum likelihood, maximum product spacing, Anderson-Darling, least squares, weighted ...
Yener Ünal +3 more
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Properties of the total least squares estimation
Geodesy and Geodynamics, 2012 Through theoretical derivation, some properties of the total least squares estimation are found. The total least squares estimation is the linear transformation of the least squares estimation, and the total least squares estimation is unbiased.
Wang Leyang
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Ciência Rural, 2022 : This study verified whether sample size would affect the precision of the analysis of variance in experiments with cauliflower seedlings. An experiment was carried out where the number of leaves and shoot, root and total length were measured.
Karina Chertok Bittencourt +4 more
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Packing 10 or 11 Unit Squares in a Square [PDF]
The Electronic Journal of Combinatorics, 2003 Let $s(n)$ be the side of the smallest square into which it is possible pack $n$ unit squares. We show that $s(10)=3+\sqrt{1\over 2}\approx3.707$ and that $s(11)\geq2+2\sqrt{4\over 5}\approx3.789$. We also show that an optimal packing of $11$ unit squares with orientations limited to $0$ degrees or $45$ degrees has side $2+2\sqrt{8\over 9}\approx3 ...
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Ural Mathematical Journal, 2016 The Hitting Set Problem (HSP) is the well known extremal problem adopting research interest in the fields of combinatorial optimization, computational geometry, and statistical learning theory for decades.
Daniel M. Khachay, Michael Yu. Khachay
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Measurement + Control, 2020 Solar-powered unmanned aerial vehicles usually fly at high altitudes, and they are mainly powered by the photocells covering the body of unmanned aerial vehicles.
Hongmei Zhang +3 more
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Fault Diagnosis Method Based on Dynamic Axis Nucleation KPLS for Pumping Unit
IEEE Access, 2019 Fault diagnosis of pumping unit system has long been a challenging issue owing to the system that exhibits nonlinearity, coupled parameters and time-varying in the production process.
Wei Zhou +4 more
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