Results 21 to 30 of about 3,825 (195)

Conformal and empirical transformation between the PL-ETRF89 and PL-ETRF2000 reference frames using the new adjustment of the former Polish I class triangulation network [PDF]

open access: yesGeodesy and Cartography, 2021
The European reference frame ETRF2000 was introduced on the territory of Poland on 1 July 2013, named PL-ETRF2000, as a result of the appropriate measurement campaign 2008-2011.
Roman Kadaj
doaj   +1 more source

The Effect of Suvorexant on Fear Extinction Recall: A Double-Blind Randomised Controlled Pilot Trial in Healthy Individuals. [PDF]

open access: yesJ Sleep Res
ABSTRACT Post‐traumatic stress disorder (PTSD) is a highly debilitating condition that develops after trauma exposure. Dysregulation in extinction memory consolidation (i.e., the ability to remember that trauma‐related stimuli no longer signal danger) is proposed to underlie PTSD development. Disruptions in rapid eye movement (REM) sleep are thought to
Schenker MT   +10 more
europepmc   +2 more sources

Deformation analysis based on GNSS measurements in Tashkent region [PDF]

open access: yesE3S Web of Conferences, 2021
This paper presents the results of the GNSS geodetic network deformation analysis in the Tashkent region, as an example of an urban area, where obtaining reliable information for assessing hazard risk is of great importance.
Fazilova Dilbarkhon Sh.   +1 more
doaj   +1 more source

DEVELOPMENT OF A TIME-DEPENDENT 3-PARAMETER HELMERT DATUM TRANSFORMATION MODEL: A CASE STUDY FOR MALAYSIA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
This paper aims to develop a time-dependent 3-parameter Helmert datum transformation model for Malaysia as a proposed solution to the current non-geocentric issue of the Geocentric Datum of Malaysia 2000 (GDM2000).
J. Gill   +4 more
doaj   +1 more source

TRANSFORMATION METHODS FOR USING COMBINATION OF REMOTELY SENSED DATA AND CADASTRAL MAPS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In order to examine using cadastral maps as base maps for aerial orthophotos, two different 2D transformation methods were applied between various coordinate systems. Study area was chosen from Kagithane district in Istanbul.
Ş. Ö. Dönmez, A. Tunc
doaj   +1 more source

Significance of application of the nine parametric coordinate transformation where local state network is not enough reliable [PDF]

open access: yesTehnika, 2016
The most commonly used method for establishing the mathematical basis of surveying and spatial data collection is the method of Global Navigation Satellite Positioning System (GNSS).
Ristić Kornelija T.   +2 more
doaj   +1 more source

Transformation parameters between UCS-2000 and WGS-84

open access: yesGeodesy and Cartography, 2018
According to the Order of the Ministry of Agrarian Policy of Ukraine, published in 2016, about the procedure for using the national coordinate system UCS-2000, this was the first time officially presented parameters of the Helmert transformation from the
Elena Novikova   +4 more
doaj   +1 more source

Estimating integrated water vapor trends from VLBI, GPS,and numerical weather models: sensitivity totropospheric parameterization [PDF]

open access: yes, 2018
©2018. American Geophysical UnionIn this study, we estimate integrated water vapor (IWV) trends from very long baseline interferometry (VLBI) and global navigation satellite systems (GNSS) data analysis, as well as from numerical weather models (NWMs ...
Balidakis, Kyriakos   +6 more
core   +1 more source

On the extension of Helmert transform [PDF]

open access: yesAdvances in Astronomy and Space Physics, 2014
The article deals with the method of comparison of the coordinate systems used by two quite different scientific disciplines: stellar astronomy and the geodesy. Geodesic Helmert transform is analysed along with a series of stellar astronomy kinematic models: Kovalsky-Airy, Lindbladt-Oort and Ogorodnikov-Milne.
openaire   +2 more sources

Least Squares Collocation Alternative to Helmert’s Transformation with Hausbrandt’s Post – Transformation Correction [PDF]

open access: yesReports on Geodesy and Geoinformatics, 2015
Abstract The paper presents a least squares collocation - based alternative to Helmert’s transformation with Hausbrandt’s post – transformation correction. The least squares collocation is used as an exact predictor i.e. it honors the data, thus the problem of zero residuals on transformation control points is overcome and zero ...
Ligas Marcin, Banasik Piotr
openaire   +2 more sources

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