Results 21 to 30 of about 556,505 (312)

On the fractional p-Laplacian equations with weight and general datum [PDF]

open access: yes, 2016
The aim of this paper is to study the following problem: { ( - Δ ) p , β s ⁢ u = f ⁢ ( x , u ) in ⁢ Ω , u = 0 in ⁢ ℝ N ∖ Ω , \left\{\begin{aligned} \displaystyle(-\Delta)^{s}_{p,\beta}u&\displaystyle=f(x% ,u)&&\displaystyle\phantom{}\text{in }\Omega ...
B. Abdellaoui, Ahmed Attar, R. Bentifour
semanticscholar   +1 more source

Application of 3D scanning technology in Royal Malaysian Air Force Industrial Revolution 4.0‐based aircraft maintenance

open access: yesIET Networks, EarlyView., 2022
Abstract 3D scanning is rapidly becoming a key maintenance tool. Aerospace was a pioneer in adopting 3D scanning technology because aircraft manufacture and maintenance require precision. Monitoring deterioration, removing components for maintenance, and verifying covert operations are not practical or helpful without technology.
T. Nanthakumaran Thulasy   +4 more
wiley   +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

Estimation of Geopotential Value W0 for the Geoid and Local Vertical Datum Parameters

open access: yesRemote Sensing, 2023
Unification of the global vertical datum has been a key problem to be solved for geodesy over a long period, and the main challenge for unifying the global vertical datum system is to determine the geopotential value W0 of the geoid and to calculate the ...
Xinyu Liu   +4 more
doaj   +1 more source

A contrastive learning foundation model based on perfectly aligned sample pairs for remote sensing images

open access: yesGeo-spatial Information Science
Self-supervised learning (SSL) facilitates the pre-training of foundation models without reliance on costly labeled data. Among SSL methods, contrastive learning (CL) excels at extracting robust semantic representations, even in the presence of complex ...
Hengtong Shen   +4 more
doaj   +1 more source

Social impacts of corruption upon community resilience and poverty

open access: yesJàmbá, 2017
Corruption at all levels of all societies is a behavioural consequence of power and greed. With no rulebook, corruption is covert, opportunistic, repetitive and powerful, reliant upon dominance, fear and unspoken codes: a significant component of the ...
James Lewis
doaj   +1 more source

Heat-flow monotonicity of Strichartz norms [PDF]

open access: yes, 2008
Most notably we prove that for $d=1,2$ the classical Strichartz norm $$\|e^{i s\Delta}f\|_{L^{2+4/d}_{s,x}(\mathbb{R}\times\mathbb{R}^d)}$$ associated to the free Schr\"{o}dinger equation is nondecreasing as the initial datum $f$ evolves under a certain ...
Bennett, Jonathan   +3 more
core   +2 more sources

TOWARDS THE IMPLEMENTATION OF SEMI-DYNAMIC DATUM FOR MALAYSIA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
A semi-dynamic datum provides positions with respect to time while taking into account the secular and non-secular deformations, making it the best approach to adapt with the dynamic processes of the earth. Malaysia, as yet, employs a static datum, i.e.,
N. S. Shariff   +3 more
doaj   +1 more source

Geologic quadrangle map no. 47 [PDF]

open access: yes, 1978
Process Steps: 1. Either: a) a Portable Document Format (PDF) version of the map provided the Bureau of Economic Geology, University of Texas at Austin was converted from pdf to Tagged Image File Format (TIFF) or b) a paper map was scanned and saved in ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
core   +1 more source

Performance of Multi-Antenna GNSS Buoy and Co-Located Mooring Array Deployed Around Qianliyan Islet for Altimetry Satellite Calibration

open access: yesRemote Sensing
To evaluate the prospects of multi-antenna GNSS buoy and mooring array in ocean altimetry satellite calibration, experiments are conducted in the ocean around Qianliyan islet in China’s Yellow Sea.
Bin Guan   +11 more
doaj   +1 more source

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