Results 31 to 40 of about 4,829 (259)

Determination of the local geoid model in Duhok Region, University of Duhok Campus as a Case study

Ain Shams Engineering Journal, 2021
The height obtained through the GNSS method is the ellipsoidal height and to have an efficient application in surveying it has to be converted into orthometric height.
Farsat Heeto Abdulrahman
doaj   +1 more source

Proposed Methodology for Accuracy Improvement of LOD1 3D Building Models Created Based on Stereo Pléiades Satellite Imagery

Remote Sensing, 2022
Three-dimensional city models play an important role for a large number of applications in urban environments, and thus it is of high interest to create them automatically, accurately and in a cost-effective manner.
Ana-Ioana Breaban, Valeria-Ersilia Oniga, Constantin Chirila, Ana-Maria Loghin, Norbert Pfeifer, Mihaela Macovei, Alina-Mihaela Nicuta Precul   +6 more
doaj   +1 more source

Gravimetric Model of Quasigeoid in the Area of Slovakia [PDF]

Acta Montanistica Slovaca, 2005
The gravimetric model of quasigeoid in the area of Slovakia was determined by using the revised and homogenised gravity mapping data in the scale of 1:25 000 from the area of Slovakia, and by using the mean Bouguer gravity anomalies with the resolution ...
Juraj Papčo, Juraj Janák, Marcel Mojzeš   +2 more
doaj  

Technologies for calculating geodetic coordinates applying h­geometry functions

Geodesy and Cartography, 2012
The paper proposes replacing sin and cos functions of classical geometry with sph and cph functions used in h­geometry for calculating geodetic coordinates.
Donaldas Zanevičius, Faustas Keršys
doaj   +1 more source

Application of GAPS Software for Kinematic Positioning [PDF]

Problemy Mechatroniki, 2016
The paper presents the results on determination of aircraft’s position in kinematic mode in GPS system. The dual-frequency code and phase observations from Topcon TPS Hiper receiver were used for computations.
Kamil KRASUSKI
doaj   +1 more source

Modelling Orthometric Heights from a Combination of Ellipsoidal Heights and Gravimetric Geoid Model in Rivers State, Nigeria

International Journal of Geosciences, 2020
Many applications in geodesy, hydrography and engineering require geoid-related heights. Spirit leveling which is the traditional means of obtaining geoid- or mean sea level-related heights is slow, time-consuming and costly. Global Navigation Satellite Systems (GNSS) offer faster and relatively cheaper way of obtaining geoid-related heights when ...
Kurotamuno P. Jackson, Elochukwu C. Moka
openaire   +2 more sources

Integration of UAV-derived digital elevation model and GNSS for orthometric height determination in urban mapping

Nova Geodesia
Accurate orthometric height information is critical for a variety of urban geospatial applications, including cadastral mapping, infrastructure development, and flood risk assessment.
Ibrahim O. RAUFU, Herbert TATA, Emmanuel B. ADEWOLE   +2 more
doaj   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

Advanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov, Roberta Gabrieli, Avzal Akbarov, Nigora Nigmatova, Bekhzod Khabilov, Alessandro Schiavi, Martin Schwentenwein, Enrica Verné, Francesco Baino   +8 more
wiley   +1 more source

A 3D Biofabricated Disease Model Mimicking the Brain Extracellular Matrix Suitable to Characterize Intrinsic Neuronal Network Alterations in the Presence of a Breast Tumor Disseminated to the Brain

Advanced Functional Materials, EarlyView.
A 3D disease model is developed using customized hyaluronic‐acid‐based hydrogels supplemented with extracellular matrix (ECM) proteins resembling brain ECM properties. Neurons, astrocytes, and tumor cells are used to mimic the native brain surrounding.
Esra Türker, Mateo S. Andrade Mier, Jessica Faber, Mike Friedrich, Zan Lamberger, Jeannette Weigelt, Christian Stigloher, Nicoletta Murenu, Natascha Schaefer, Jörg Tessmar, Gregor Lang, Silvia Budday, Katrin G. Heinze, Antje Appelt‐Menzel, Pamela L. Strissel, Reiner Strick, Carmen Villmann   +16 more
wiley   +1 more source