Results 41 to 50 of about 880,855 (298)

Tantalum Alloy Welding: Does the Thermal Cycle Influence the Microstructure?

open access: yesApplied Sciences, 2022
The aim of the present work is to verify the microstructural behavior of a B 521 tantalum alloy UNS Grade R05200 after welding, in relation to the welding thermal cycle.
Antonio Bernardo Sánchez   +6 more
doaj   +1 more source

THE EFFECT OF PANSHARPENING ALGORITHMS ON THE RESULTING ORTHOIMAGERY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
This paper evaluates the geometric effects of pansharpening algorithms on automatically generated DSMs and thus on the resulting orthoimagery through a quantitative assessment of the accuracy on the end products. The main motivation was based on the fact
P. Agrafiotis   +2 more
doaj   +1 more source

Multivariate Analysis to Relate CTOD Values with Material Properties in Steel Welded Joints for the Offshore Wind Power Industry

open access: yesEnergies, 2019
The increasingly mechanical requirements of offshore structures have established the relevance of fracture mechanics-based quality control in welded joints.
Álvaro Presno Vélez   +3 more
doaj   +1 more source

Conversion of units of length from the Czech state standard to the geodetic baseline Javoriv

open access: yesActa Polytechnica, 2022
Modern society cannot do without high quality geospatial data. This need constantly strengthens with the growth of the information society and the emerging cyber society.
Jiří Lechner   +2 more
doaj   +1 more source

Statistical Topography of Glassy Interfaces [PDF]

open access: yes, 1997
Statistical topography of two-dimensional interfaces in the presence of quenched disorder is studied utilizing combinatorial optimization algorithms. Finite-size scaling is used to measure geometrical exponents associated with contour loops and fully ...
A. A. Middleton   +23 more
core   +3 more sources

Results of GPS reprocessing campaign (1996-2011) provided by Geodetic observatory Pecný

open access: yesGeoinformatics FCE CTU, 2012
The paper presents the GOP first reprocessing results, which officially contributed to the EPN-repro1 project. It also describes the 15-year GOP cumulative solution providing station coordinates, velocities and their discontinuities over the period of ...
Jan Douša, Pavel Václavovic
doaj   +1 more source

Notes on the Topography of Eresos [PDF]

open access: yes, 1994
This paper is a tripartite study of the topography of the polis of Eresos in southwest Lesbos, addressing three specific problems. The first part provides a topographical discussion of the previously ignored chora of the Archaic polis, considering the ...
Schaus, Gerald, Spencer, Nigel
core   +2 more sources

Spatial Estimation of Sub-Hour Global Horizontal Irradiance Based on Official Observations and Remote Sensors

open access: yesSensors, 2014
This study was motivated by the need to improve densification of Global Horizontal Irradiance (GHI) observations, increasing the number of surface weather stations that observe it, using sensors with a sub-hour periodicity and examining the methods of ...
Federico-Vladimir Gutierrez-Corea   +3 more
doaj   +1 more source

New Adaptable All-in-One Strategy for Estimating Advanced Tropospheric Parameters and Using Real-Time Orbits and Clocks

open access: yesRemote Sensing, 2018
We developed a new strategy for a synchronous generation of real-time (RT) and near real-time (NRT) tropospheric products. It exploits the precise point positioning method with Kalman filtering and backward smoothing, both supported by real-time orbit ...
Jan Douša   +3 more
doaj   +1 more source

Topographically forced long waves on a sheared coastal current. Part 2. Finite amplitude waves [PDF]

open access: yes, 1997
This paper analyses the finite-amplitude flow of a constant-vorticity current past coastal topography in the long-wave limit. A forced finite-amplitude long-wave equation is derived to describe the evolution of the vorticity interface.
Clarke, SR, Johnson, ER
core   +1 more source

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