Results 71 to 80 of about 2,389 (219)
Genome‐Wide by Lifetime Environment Interaction Studies of Brain Imaging Phenotypes
This study explores genome‐wide by lifetime environment interactions on brain imaging phenotypes. Gene‐environment interactions explain more phenotypic variance than main effects, pinpoint regulatory variants, and reveal exposure‐specific biological pathways.
Sijia Wang +51 more
wiley +1 more source
How Close are the Edges of a Closed Fracture? [PDF]
A laboratory experiment is peresented where the theory of amplitude reflection tuning in thin beds is tested.
Calzoni, Corrado, Sambuelli., L.
core
Abstract The radar surface echo can be separated into coherent and incoherent components by statistical approaches, and the coherent component can be described by a backscattering model related to the RMS height. According to backscattering models for fractal surfaces, the coherent power in decibels decreases with RMS height on a scale independent of ...
Tiansheng Hong +9 more
wiley +1 more source
GPR applications in mapping the subsurface root system of street trees with road safety-critical implications [PDF]
Street trees are an essential element of urban life. They contribute to the social, economic and environmental development of the community and they form an integral landscaping, cultural and functional element of the infrastructure asset.
Alani, Amir +3 more
core +1 more source
Abstract The East Antarctic Ice Sheet (EAIS) formed circa 34 million years ago and now contains an ice volume equivalent to ∼52 m of global sea‐level rise. Although the EAIS is approximately in balance today, there is substantial uncertainty regarding the sensitivity of sectors underlain by low‐lying bed topography to future climate and ocean warming ...
Guy J. G. Paxman +5 more
wiley +1 more source
Application of radar techniques to the verification of design plans and the detection of defects in concrete bridges [PDF]
Non-destructive tests (NDT) are an essential tool used in special inspections to gather detailed information about the condition of a bridge. The inspection of bridge decks is a critical task, and, currently, can be successfully carried out using a ...
Cruz, Paulo J. S. +4 more
core +1 more source
Detection and characterisation of heterogeneities in the WISDOM/ExoMars 2022 radargrams. [PDF]
 Introduction The principal objective of Rosalind Franklin, the ExoMars Rover, is to look for evidence of past or present life on Mars. Such evidence would most likely remain in the subsurface, where organic molecules are protected from all kind of threats they could meet at the surface.
de Lamberterie, François-Wandrille +4 more
openaire +2 more sources
ABSTRACT Saruq al‐Hadid, located at the edge of the Rub Al‐Khali desert near Dubai's southern border with Abu Dhabi, is among the region's richest archaeological sites. Renowned for its historical role in metallurgy, trade and human habitation, the site was occupied from the Umm an‐Nar period through the post–Iron Age. Despite its significance, much of
Moamen Ali +9 more
wiley +1 more source
Radio tomography and borehole radar delineation of the McConnell nickel sulfide deposit, Sudbury, Ontario, Canada [PDF]
In an effort to reduce costs and increase revenues at mines, there is a strong incentive to develop high-resolution techniques both for near-mine exploration and for delineation of known orebodies To investigate the potential of high-frequency EM ...
Calvert, Andrew J. +4 more
core +1 more source
Template-matching based detection of hyperbolas in ground-penetrating radargrams for buried utilities [PDF]
Ground-penetrating radar (GPR) is a mature geophysical technique that is used to map utility pipelines buried within 1.5 m of the ground surface in the urban landscape. In this work, the template-matching algorithm has been originally applied to the detection and localization of pipe signatures in two perpendicular antenna polarizations. The processing
Sagnard, Florence, Tarel, Jean Philippe
openaire +2 more sources

