Results 11 to 20 of about 14,167,410 (315)

A Locally Finite Model for Gravity [PDF]

open access: yesFoundations of Physics, 2008
Matter interacting classically with gravity in 3+1 dimensions usually gives rise to a continuum of degrees of freedom, so that, in any attempt to quantize the theory, ultraviolet divergences are nearly inevitable. Here, we investigate matter of a form that only displays a finite number of degrees of freedom in compact sections of space-time.
't Hooft, G.   +3 more
openaire   +8 more sources

A new high-precision gravity solid tidal model for Precision Gravity Measurement Facility

open access: yesGeodesy and Geodynamics, 2020
It is significant for establishing gravity datum to construct precise gravity solid tidal model. A simple method with relatively low performance is to interpolate tidal parameters from the global gravity solid tide models.
Chuang Xu   +3 more
doaj   +1 more source

Standard model with gravity couplings [PDF]

open access: yesPhysical Review D, 1996
Extended, and replaced with LaTex file.
Chang, Lay Nam, Soo, Chopin
openaire   +3 more sources

Refinement of a gravimetric geoid model for Japan using GOCE and an updated regional gravity field model

open access: yesEarth, Planets and Space, 2020
We developed a refined gravimetric geoid model for Japan on a 1 × 1.5 arc-minute (2 km) grid from a GOCE-based satellite-only global geopotential model and a regional gravity field model updated in this study.
Koji Matsuo, Yuki Kuroishi
doaj   +1 more source

Monthly gravity field solution from GRACE range measurements using modified short arc approach

open access: yesGeodesy and Geodynamics, 2015
In this paper we present a series of monthly gravity field solutions from Gravity Recovery and Climate Experiment (GRACE) range measurements using modified short arc approach, in which the ambiguity of range measurements is eliminated via differentiating
Yunzhong Shen, Qiujie Chen, Houze Xu
doaj   +1 more source

(2+1) gravity for higher genus in the polygon model [PDF]

open access: yes, 2004
We construct explicitly a (12g − 12)-dimensional space P of unconstrained and independent initial data for ’t Hooft’s polygon model of (2+1) gravity for vacuum spacetimes with compact genus-g spacelike slices, for any g ≥ 2.
Kádár, Zoltán   +5 more
core   +2 more sources

A Hydro-Dynamical Model for Gravity [PDF]

open access: yesINCAS Bulletin, 2016
hydro-dynamical model for gravity by using an analogy with the attraction of spherical sources in incompressible fluids is proposed. Information regarding a photon-like particle called graviton is taken using an author’s previous paper [6]. The substance
Corneliu BERBENTE
doaj   +1 more source

Instability in the Magnetized Accretion Disks with Outflows in the Presence of Self-Gravity [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2022
We study the stability of a model of magnetized accretion disk, in whichoutflows play a significant role in driving the inflow, and magnetic field is generated bya dynamo operating in the disk.
Sekine Karimzadeh   +2 more
doaj   +1 more source

Application of Radial Basis Functions for Height Datum Unification

open access: yesGeosciences, 2018
Local gravity field modelling demands high-quality gravity data as well as an appropriate mathematical model. Particularly in coastal areas, there may be different types of gravity observations available, for instance, terrestrial, aerial, marine gravity,
Ismael Foroughi   +3 more
doaj   +1 more source

An iterative Wiener filtering method based on the gravity gradient invariants

open access: yesGeodesy and Geodynamics, 2015
How to deal with colored noises of GOCE (Gravity field and steady – state Ocean Circulation Explorer) satellite has been the key to data processing. This paper focused on colored noises of GOCE gradient data and the frequency spectrum analysis. According
Rui Zhou, Xiaoping Wu
doaj   +1 more source

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