Results 1 to 10 of about 521,065 (182)

Transformaciones de Datum.

open access: yesUniciencia, 2004
Con el uso generalizado de las técnicas satelitales aplicadas en topografía y geodesia, se ha generado la necesidad de transformar entre marcos coordenados de referencia globales y locales.
Manuel Ramírez, Juan G. Serpas
doaj   +3 more sources

RESEARCH IMPLEMENTATION OF BEIDOU DATA FAST PROCESSING OF LARGE-SCALE GNSS REFERENCE STATION NETWORK [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
GNSS reference station network is the core infrastructure for the establishment ,maintenance, renewal and service of national geodetic reference framework. At present ,nearly 3000 reference stations have been constructed in the national resources system ,
Q. Zhang   +7 more
doaj   +1 more source

COORDINATE TRANSFORMATION FROM KARBALA 1979 AND WORLD GEODETIC SYSTEM 1984 TO IRAQI GEOSPATIAL REFERENCE SYSTEM [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2022
Nowadays, the transformation between coordinate systems is the major interested problems especially in Iraq. There are many coordinate systems used to produce maps and documentations due to different datums and spheroids.
Ruba Y. Hussain
doaj   +1 more source

Need for pan-India compatibility of geospatial databases in terms of map projections and parameters

open access: yesGeocarto International, 2023
The present study is taken up to record variations in the extent of area of two polygons—(i) a ground measured area of a university campus, (ii) enclosing the Ganga basin—and to examine the changes in both shape and area of another (iii) polygon covering
Mallikarjun Mishra   +2 more
doaj   +1 more source

The height datum/geodetic datum problem [PDF]

open access: yesGeophysical Journal International, 2002
The height datum problem is present in the geodetic literature since the times of Pizzetti, when it was realized that as only differences of the gravity potential can be derived from measurements, there was still one global parameter to be settled in order to determine a global model.
F. Sansò, G. Venuti
openaire   +2 more sources

Quantum harmonic oscillator with superoscillating initial datum [PDF]

open access: yes, 2014
In this paper we study the evolution of superoscillating initial data for the quantum driven harmonic oscillator. Our main result shows that superoscillations are amplified by the harmonic potential and that the analytic solution develops a singularity ...
Aharonov Y.   +7 more
core   +3 more sources

3D Reconstruction via Depth and Normal Priors Guided 3D Gaussian Splatting [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This paper introduces a novel 3D reconstruction method that leverages depth and normal priors within a 3D Gaussian splatting framework. The approach aims to address the limitations of traditional 3D reconstruction methods, which often involve complex ...
J. Jiang, Q. Wang, L. Zhang
doaj   +1 more source

Corruption: The hidden perpetrator of under-development and vulnerability to natural hazards and disasters

open access: yesJàmbá, 2011
My lecture is based upon a fully referenced paper but it is not an academic paper that contains evidence from which it draws conclusions. It’s in the nature of corruption that there is little evidence and there are no text-books, no journals devoted to ...
James Lewis
doaj   +1 more source

THE IMPLEMENTATION OF MODERN GEOCENTRIC DATUM: A REVIEW [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
A dynamic datum denotes a coordinate datum in real-time linked with the International Terrestrial Reference Frame (ITRF) in order to provide a dynamic ITRF-like datum to the users.
N. M. Yazid   +4 more
doaj   +1 more source

Fr\'echet differentiability of mild solutions to SPDEs with respect to the initial datum [PDF]

open access: yes, 2019
We establish n-th order Fr\'echet differentiability with respect to the initial datum of mild solutions to a class of jump-diffusions in Hilbert spaces. In particular, the coefficients are Lipschitz continuous, but their derivatives of order higher than ...
Marinelli, Carlo, Scarpa, Luca
core   +3 more sources

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