Results 21 to 30 of about 15,120 (245)
Electrostatic interaction between Interball-2 and the ambient plasma. 2. Influence on the low energy ion measurements with Hyperboloid [PDF]
Annales Geophysicae, 2002 The measurement of the thermal ion distributions in space is always strongly influenced by the ion motion through the complex 3D electrostatic potential structure built around a charged spacecraft.
M. Hamelin +8 more
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Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023 The problem of object guidance to the target point using two time difference of arrival (TDoA) measurements obtained from three navigation positions is considered.
V. V. Legkostup
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SSRN Electronic Journal, 2022 This paper investigates a relativistic model of the Universe in which the geometry describes a 4D version of the 2-sheeted hyperboloid that is isotropic, homogeneous in space at a given time and inhomogeneous in time. The internal Schwarzschild metric is used for this model, which is justified by the fact that spherically-symmetric empty spaces in the ...
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Using the Theory of Functional Connections to Solve Boundary Value Geodesic Problems
Mathematical and Computational Applications, 2022 This study provides a least-squares-based numerical approach to estimate the boundary value geodesic trajectory and associated parametric velocity on curved surfaces.
Daniele Mortari
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Anti-de Sitter boundary in Poincare coordinates [PDF]
, 2007 We study the space-time boundary of a Poincare patch of Anti-de Sitter (AdS) space. We map the Poincare AdS boundary to the global coordinate chart and show why this boundary is not equivalent to the global AdS boundary.
C. A. Ballón Bayona +19 more
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Вестник Дагестанского государственного технического университета: Технические науки, 2018 . Objectives This work is a continuation of a series of articles devoted to an analysis of the effect of the utilised second-order surface types on the accuracy of determining earthquake epicentre and hypocentre coordinates. Methods In order to find the
Gaidarbek K. Aslanov +3 more
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Sampling Theorem and Discrete Fourier Transform on the Hyperboloid [PDF]
, 2010 Using Coherent-State (CS) techniques, we prove a sampling theorem for holomorphic functions on the hyperboloid (or its stereographic projection onto the open unit disk $\mathbb D_1$), seen as a homogeneous space of the pseudo-unitary group SU(1,1).
Calixto, Manuel +2 more
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Design and Performance Evaluation of Asymmetric Hyperboloid Linear Ion Trap [PDF]
Zhipu Xuebao, 2021 Hyperbolic electrode linear ion trap is a good choice as the mass analyzer of miniaturized ion trap mass spectrometer for the reason that it has a compact size and excellent performance. However, ions are ejected from both opposite directions along the x-
WU Hui +5 more
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Superintegrability on the two-dimensional hyperboloid [PDF]
Journal of Mathematical Physics, 1997 In this work we examine the basis functions for classical and quantum mechanical systems on the two-dimensional hyperboloid that admit separation of variables in at least two coordinate systems. We present all of these cases from a unified point of view. In particular, all of the special functions that arise via variable separation have their essential
Kalnins, E. G. +2 more
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Geometric and Kinematic Analysis of Deployable Doubly Ruled Hyperboloids
Megaron, 2017 This paper aims to develop deployable doubly ruled hyperboloid surfaces that can be used in architectural applications. First, the study systematically analyzes the geometric principles of hyperboloids generated by the ruled surface generation method and
Feray Maden, Koray Korkmaz
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