Results 11 to 20 of about 1,447,843 (300)
Symmetries of the Hamilton-Jacobi equation [PDF]
Компьютерные исследования и моделирование, 2012 The notion of symmetry transformations of the Hamilton-Jacobi equation. For the group of symmetries is shown how to be associated with the Hamiltonian function coefficients of the infinitesimal operator of the group.
Gennadii Nikolaevich Yakovenko
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Remark on approximation in the calculation of the primordial spectrum generated during inflation [PDF]
, 2000 We re-examine approximations in the analytical calculation of the primordial spectrum of cosmological perturbation produced during inflation. Taking two inflation models (chaotic inflation and natural inflation) as examples, we numerically verify the ...
Huang, D. H., Lin, W. B., Zhang, X. M.
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St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020 In this paper proposes a concept for independent calculation of parameters of elements in fiber-optic interferometric schemes with time-division multiplexing (TDM).
Kostromitin Aleksey +3 more
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Riccati transfer equations for fluid structure interaction in liquid-filled piping systems
Heliyon, 2023 In this paper, based on the Riccati transfer matrix method (RTMM), the Riccati fluid structure interaction transfer equations (FSIRTE) are established to improve the numerical stability of the classical fluid structure interaction transfer matrix method (
Li Tang +3 more
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CALCULATION OF PARAMETERS BOTTOMHOLE FORMATION ZONE AT THE ZONAL INHOMOGENEITIES
Вестник Северо-Кавказского федерального университета, 2022 Expressions are obtained for calculating the parameters of the bottomhole formation zone at the zonal heterogeneity. The examples of calculation for a specific well Kasimovsky UGSF. Recommendations are given of supervising the correct calculation.
Tatyana A. Gunkina +3 more
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METHOD FOR THE CONTROL VERIFICATION OF DIGITAL INFORMATION, REPRESENTED IN A RESIDUE NUMBER SYSTEM
Сучасні інформаційні системи, 2020 The subject of the research in the article is the control methods for the data presented in the residue number system. The object of research is the process of monitoring data presented in the residue number system.
Victor Krasnobayev +2 more
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Theoretical Determination of Losses in Involute Gearing
Наука и техника, 2005 The paper proposes a calculation method for determination of losses in involute gearing designed with combined parameters or standard methods. Calculation examples are given in the paper.
A. S. Marchook
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A new approximation scheme in quantum mechanics [PDF]
, 1997 An approximation method which combines the perturbation theory with the variational calculation is constructed for quantum mechanical problems. Using the anharmonic oscillator and the He atom as examples, we show that the present method provides an ...
Chul Koo Kim +10 more
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Journal of Marine Science and Engineering, 2022 Sudden natural disasters have the characteristics of complexity, unpredictability and frequency. To better manage and analyze sudden natural disasters promptly with the help of historical natural disaster cases, this study adopts the method of fused case
Cheng Cheng +3 more
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Cosmic Superstring Scattering in Backgrounds [PDF]
, 2006 We generalize the calculation of cosmic superstring reconnection probability to non-trivial backgrounds. This is done by modeling cosmic strings as wound tachyon modes in the 0B theory, and the spacetime effective action is then used to couple this to ...
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