Results 51 to 60 of about 1,033,793 (200)
Introduction to Gravity Models of Migration & Trade
The Programming Historian, 2019 This lesson introduces gravity models as a means for determining the probable distribution of entities across space in historical datasets. It does so through a case study of historical migration patterns.
Adam Crymble
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Correlation between the Bouguer gravity anomaly and the TAIGER tomography of the Taiwan region
Terrestrial, Atmospheric and Oceanic Sciences, 2018 The Bouguer gravity anomaly derived from observed gravity data and calculated from a 3-D P-wave velocity model were used to investigate the compatibility between the two to understand the crust structure of the Taiwan region.
Yu-Tsung Lo +2 more
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Weak gravity in DGP braneworld model [PDF]
, 2003 We analyze the weak gravity in the braneworld model proposed by Dvali-Gabadadze-Porrati, in which the unperturbed background spacetime is given by five dimensional Minkowski bulk with a brane which has the induced Einstein Hilbert term.
A. Higuchi +30 more
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THE GRAVITY MODEL OF TRADE: A THEORETICAL PERSPECTIVE
Review of Innovation and Competitiveness, 2019 Purpose. The purpose of this study is to trace the theoretical developments of the gravity model of trade. The key question is: what are the dominant features of the development of the gravity trade model? Methodology.
Saleh Shahriar +3 more
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Terrestrial, Atmospheric and Oceanic Sciences, 2022 The Tatun Volcanic Group (TVG) is an active volcanic system that poses potential volcanic hazards to northern Taiwan. Groundwater migration can be sensitive to volcanic activities and can induce temporal gravity changes.
Tzuyi Lien +5 more
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Holographic Chern-Simons Theories
, 2014 Chern-Simons theories in three dimensions are topological field theories that may have a holographic interpretation for suitable chosen gauge groups and boundary conditions on the fields.
Afshar, H. +5 more
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Mehmet Akif Ersoy Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi, 2022 Yer çekimi modeli ülkeler arasındaki ticaretin açıklanmasında yaygın olarak kullanılan bir yöntemdir. Bu çalışmada Türkiye ile OECD ülkeleri arasındaki ticaret ilişkisi mekânsal yer çekimi modeli kullanılarak incelenmiştir.
Sinem Güler Kangallı Uyar +1 more
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Modeling repulsive gravity with creation [PDF]
Journal of Astrophysics and Astronomy, 2007 There is a growing interest in the cosmologists for theories with negative energy scalar fields and creation, in order to model a repulsive gravity. The classical steady state cosmology proposed by Bondi, Gold and Hoyle in 1948, was the first such theory which used a negative kinetic energy creation field to invoke creation of matter. We emphasize that
Vishwakarma, R. G., Narlikar, J. V.
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Holographic Dark Energy from Fluid/Gravity Duality Constraint by Cosmological Observations
, 2018 In this paper, we obtain a holographic model of dark energy using the fluid/gravity duality. This model will be dual to a higher dimensional Schwarzschild black hole, and we would use fluid/gravity duality to relate to the parameters of this black hole ...
Abreu, Everton M. C. +3 more
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Lanczos–Lovelock models of gravity [PDF]
Physics Reports, 2013 Lanczos-Lovelock models of gravity represent a natural and elegant generalization of Einstein's theory of gravity to higher dimensions. They are characterized by the fact that the field equations only contain up to second derivatives of the metric even though the action functional can be a quadratic or higher degree polynomial in the curvature tensor ...
Padmanabhan, T., Kothawala, D.
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