Results 1 to 10 of about 1,033,209 (296)

Nonperturbative Model Of Liouville Gravity [PDF]

Journal of Geometry and Physics, 1994
We obtain nonperturbative results in the framework of continuous Liouville theory. In particular, we express the specific heat ${\cal Z}$ of pure gravity in terms of an expansion of integrals on moduli spaces of punctured Riemann spheres.
Balazs, Berlin, Bonelli, Bonelli, Bonora, Bonora, Bonora, Brézin, Buser, David, Deligne, Di Francesco, Dijkgraaf, Distler, Douglas, Duistermaat, Duistermaat, Friedan, Fulton, Ghandour, Ginsbarg, Ginsparg, González-Diéz, González-Diéz, González-Diéz, Griffiths, Gross, Gross, Gutzwiller, Horne, Igusa, Imayoshi, Jaffe, Knizhnik, Knudsen, Knudsen, Knudsen, Kontsevich, Levin, Li, Manin, Marco Matone, Martinec, Matone, Matone, Matone, Matone, McKean, Morozov, Morozov, Mumford, Picken, Polyakov, Schlichenmaier, Sen, Smit, Takhtajan, Takhtajan, Witten, Witten, Wolpert, Wolpert, Zograf, Zograf, Zograf, Zograf, Álvarez-Gaumé   +66 more
core   +4 more sources

Solvable model for quantum gravity [PDF]

Classical and Quantum Gravity, 2013
We study a type of geometric theory with a non-dynamical one-form field. Its dynamical variables are an $su(2)$ gauge field and a triad of $su(2)$ valued one-forms.
Gegenberg, Jack, Husain, Viqar
core   +2 more sources

Improving Resistance of Gravity Dam to Seismic Wave by Using Stepped Base [PDF]

E3S Web of Conferences, 2021
This study analyzes the possible modes of the seismic wave for concrete gravity dams and the damage occurring in the body where two gravity dam sections are taken as a case study.
Jabbar Asmaa Abdul, Irzooki Raad H., Al-Obaidi Ahmed A. H.   +2 more
doaj   +1 more source

Refining Altimeter-Derived Gravity Anomaly Model from Shipborne Gravity by Multi-Layer Perceptron Neural Network: A Case in the South China Sea

Remote Sensing, 2021
Shipborne gravity can be used to refine altimeter-derived gravity whose accuracy is low in shallow waters and areas with complex submarine topography. As altimeter-derived gravity only within a small radius around the shipborne data can be corrected by ...
Chengcheng Zhu, Jinyun Guo, Jiajia Yuan, Xin Jin, Jinyao Gao, Chengming Li   +5 more
doaj   +1 more source

Improved gravity model under policy control in regional logistics

Measurement + Control, 2021
Regional logistics has become an important direction of logistics development. The rationality of regional logistics network layout will affect the regional development. And the measurement and calculation of node gravity is an important aspect affecting
Hongchun Wang, Mengyao Li
doaj   +1 more source

An Accurate Gravity Disturbance Compensation Method Based on Spherical Harmonic Model and Multi-Sensor Fusion [PDF]

Hangkong bingqi, 2023
With the improvement of the accuracy requirements of high-precision long endurance inertial navigation system, the gravity disturbance has become the main error source of inertial navigation system.Is the key factor to improve the navigation accuracy ...
Liu Yuxin, Wang Xinlong, Wang Xun, Gao Wenning, Hu Xiaodong
doaj   +1 more source

Quantum gravity inspired nonlocal gravity model [PDF]

Physical Review D, 2017
We consider a nonlocal gravity model motivated by nonperturbative Quantum Gravity studies. This model, if correct, suggests the existence of strong IR relevant effects which can lead to an interesting late time cosmology. We implement the IR modification directly in the effective action.
Amendola, Luca, Burzilla, Nicolo, Nersisyan, Henrik   +2 more
openaire   +2 more sources

Bathymetric Prediction from Multi-source Satellite Altimetry Gravity Data [PDF]

Journal of Geodesy and Geoinformation Science, 2019
According to the “theoretical admittance " and the "observation admittance" of the actual data, the theoretical value of effective elastic thickness in the study area was 10km.
Diao FAN,Shanshan LI,Shuyu MENG,Chi ZHANG,Jinkai FENG,Yan HUANG,Jiawei DU,Zhibin XING
doaj   +1 more source

Gravity disturbance compensation for dual-axis rotary modulation inertial navigation system

Frontiers in Marine Science, 2023
Gravity disturbance compensation is an important technique for improving the positioning accuracy of high-precision inertial navigation systems (INS).
Panpan Zhang, Panpan Zhang, Lin Wu, Lifeng Bao, Bo Wang, Hui Liu, Qianqian Li, Yong Wang   +7 more
doaj   +1 more source

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

Geodesy 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, Rongrui Xu, Wenrui Zeng, Jianguo Yan   +3 more
doaj   +1 more source