Results 181 to 190 of about 709,447 (218)

Perturbations in the Anomalistic Period of Artificial Satellites Caused by the Direct Solar Radiation Pressure Centre for Astronomy and Space Sciences, Satellite Tracking Station No. 1132

Astronomische Nachrichten, 1979
AbstractApproximate formulae for the evaluation of the influence of direct solar radiation pressure (neglecting the POYNTING‐ROBERTSON effect) on the anomalistic period of artificial satellites with quasi‐circular and completely illuminated orbits are derived.
Vasile Mioc, Eugen Radu
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The History of Perturbation Theory from Astronomy to Quantum Mechanics

, 1998
Abstract The goals of this chapter on perturbation theory are to introduce the concept of perturbation theory, to present the genesis of perturbation theory as a mathematical technique to solve complex problems in mechanics, mainly celestial mechanics, and to present a historical review of the application of the theory to quantum ...
Barry R. Masters
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Black hole perturbation theory and gravitational self-force

, 2021
Much of the success of gravitational-wave astronomy rests on perturbation theory. Historically, perturbative analysis of gravitational-wave sources has largely focused on post-Newtonian theory.
A. Pound, B. Wardell
semanticscholar   +1 more source

Gravitational Perturbation Influence on High Altitude Satellite for different Inclination

NeuroQuantology, 2022
Satellites have become such a vital part of our daily lives that we take for granted many of their functions, such as global positioning system (GPS) navigation and images of weather systems collected from orbit.
Mustafa Najat Kareem, W. Zaki
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Rotational g factors and Lorentz forces of molecules and solids from density functional perturbation theory

Physical review B, 2021
Asier Zabalo, Cyrus E. Dreyer, 3 and Massimiliano Stengel 4 Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York, 11794-3800 ...
Asier Zabalo, C. Dreyer, M. Stengel
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New parameterizations of generalized Chaplygin gas model constrained at background and perturbation levels

Journal of astrophysics and astronomy, 2021
We study the main cosmological properties of the generalized Chaplygin gas (GCG) dark energy model at the background and perturbation levels. By using the latest cosmological data in both the background and perturbation levels, we implement a joint ...
S. F. Salahedin, M. Malekjani, K. Y. Roobiat, R. Pazhouhesh   +3 more
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Offsetting and blending with perturbation functions

Symposium on Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments (WILGA), 2018
Transformations of geometric objects are described for offsetting. This paper presents the real-time synthesis of highquality images – a method of defining free forms without approximating them with polygons or patches, issues of using perturbation ...
S. Vyatkin, O. Romanyuk, S. Pavlov, A. Kotyra, A. Mussabekova   +4 more
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Flow Visualization for Complex Fluid Flows via a Structure-Enhanced Motion Estimator

IEEE transactions on circuits and systems for video technology (Print)
Flow visualization through motion estimation using time-sequenced images plays a significant role in analyzing and understanding complex flow phenomena, and it is widely used in meteorology, oceanography, medicine, astronomy, experimental fluid mechanics,
Jun Chen, He Wang, Zhifeng Hao, Zemin Cai, Ling Mei, Tianshu Liu   +5 more
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Interpreting the detection of anomalies in SDSS spectra

Astronomy & Astrophysics
The increasing use of machine-learning methods in astronomy introduces important questions about interpretability. The complexity and nonlinear nature of machine-learning methods means that it can be challenging to understand their decision-making ...
Edgar Ortiz Manrique, M. Boquien
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Perturbation (astronomy)

, 2015
Duncombe, Raynor L., Murray, Carl D.
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