Results 11 to 20 of about 11,759,117 (298)
Analytical, circle-to-circle low-thrust transfer trajectories with plane change [PDF]
, 2013 Orbit averaging techniques are used to develop analytical approximations of circle-to-circle low-thrust trajectory transfers with plane-change about the Sun.
Macdonald, Malcolm
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Circle Detection Method Based on Edge Point Verification Applied to Complex Background Image [PDF]
Jisuanji gongcheng, 2018 Traditional circle detection method has several limitations in complex background,such as low accuracy,high error detection rate,high leak identification rate and low reliability.To solve these problems,a circle detection method which can be applied to ...
LI Jun,CHENG Jian
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Sign-Periodicity of Traces of Singular Moduli
Mathematics, 2013 Zagier proved that the generating functions of traces of singular values of Jm(z) are weight 3/2 weakly holomorphic modular forms. In this paper we prove that there is the sign-periodicity of traces of singular values of Jm(z).
Subong Lim, Dohoon Choi, Byungchan Kim
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Satellite Pose Estimation via Only a Single Spatial Circle
Information, 2022 To estimate the pose of satellites in space, the docking ring component has strong rigid body characteristics and can provide a fixed circular feature, which is an important object. However, due to the need for additional constraints to estimate a single
Wei Zhang, Pingguo Xiao, Junlin Li
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Intrinsic circle domains [PDF]
, 2014 Using quasiconformal mappings, we prove that any Riemann surface of finite connectivity and finite genus is conformally equivalent to an intrinsic circle domain U in a compact Riemann surface S. This means that each connected component B of S\U is either
Crane, Edward T
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Quantitative relations between short intervals and exceptional sets of cubic Waring-Goldbach problem
Open Mathematics, 2017 In this paper, we are able to prove that almost all integers n satisfying some necessary congruence conditions are the sum of j almost equal prime cubes with j = 7, 8, i.e., N=p13+…+pj3$\begin{array}{} N=p_1^3+ \ldots +p_j^3 \end{array} $ with |pi−(N ...
Feng Zhao
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Improved hysteresis circle current control method for active power filter
Gong-kuang zidonghua, 2014 Hysteresis circle current control method with variable circle width of shunt active power filter not only ensures tracking accuracy of reference current, but controls switching frequency of inverter effectively through adjusting hysteresis circle width ...
YANG Lingxiao, HE Zhiwei
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An Anti-Noise Fast Circle Detection Method Using Five-Quadrant Segmentation
Sensors, 2023 Extracting circle information from images has always been a basic problem in computer vision. Common circle detection algorithms have some defects, such as poor noise resistance and slow computation speed.
Yun Ou +4 more
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On pairs of equations in unlike powers of primes and powers of 2
Open Mathematics, 2017 In this paper, we obtained that when k = 455, every pair of large even integers satisfying some necessary conditions can be represented in the form of a pair of unlike powers of primes and k powers of 2.
Hu Liqun, Yang Li
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Phase space methods for particles on a circle [PDF]
Journal of Mathematical Physics, 2003 The phase space S×Z for a particle on a circle is considered. Displacement operators in this phase space are introduced and their properties are studied. Wigner and Weyl functions in this context are also considered and their physical interpretation and properties are discussed.
Zhang, S., Vourdas, A.
openaire +3 more sources