Results 21 to 30 of about 647,114 (308)

Analysis of Geometric Characteristics of Cracks and Delamination in Aerated Concrete Products Using Convolutional Neural Networks

open access: yesBuildings, 2023
Currently, artificial intelligence (AI) technologies are becoming a strategic vector for the development of companies in the construction sector. The introduction of “smart solutions” at all stages of the life cycle of building materials, products and ...
Irina Razveeva   +7 more
doaj   +1 more source

ANALYSIS OF STRESS STATE IN UPPER LAYER OF ROAD CONCRETE PAVEMENT WITH TEMPERATURE ACTION

open access: yesНаука и техника, 2017
While being operated auto-road pavements are subjected to intensive mechanical impacts, ultraviolet ray irradiation, freeze-thaw temperatures, freezing and thawing, drying and moistening.
M. K. Pshembaev   +2 more
doaj   +1 more source

GIS and BIM as Integrated Digital Environments for Modeling and Monitoring of Historic Buildings

open access: yesApplied Sciences, 2020
Multidisciplinary data integration within an information system is considered a key point for rehabilitation projects. Information regarding the state of preservation and/or decision making, for sustainable restoration is prerequisite.
Elisavet Tsilimantou   +4 more
doaj   +1 more source

Electrical impedance spectroscopy-based nondestructive testing for imaging defects in concrete structures

open access: yes, 2014
An electrical impedance spectroscopy-based nondestructive testing (NDT) method is proposed to image both cracks and reinforcing bars in concrete structures.
Ammari, Habib   +3 more
core   +2 more sources

Role of hydrogen in hydrogen-induced layer exfoliation of germanium [PDF]

open access: yes, 2007
The role of hydrogen in the exfoliation of Ge is studied using cross-sectional transmission electron microscopy, atomic force microscopy, and multiple-internal transmission mode Fourier-transform infrared absorption spectroscopy and compared with the ...
Atwater, Harry A.   +4 more
core   +1 more source

Crack Analysis in the Sae 1117 Steel Shafts for Inclusion and Heat Treatment Combination Effect

open access: yesEuropean Mechanical Science, 2018
Surface hardening in steels isa process in which a chemical composition is changed by thermo-chemicalprocesses in a determined region and, accordingly, some micro-structure ischanged.
Taner Kavas   +4 more
doaj   +1 more source

Reconstruction of Crack Cluster in the Rectangular Domain by Ultrasonic Waves [PDF]

open access: yes, 2010
In the present article we study the reconstruction problem for clusters of linear cracks inside a rectangular domain. The parameters to be reconstructed are the number of cracks and the size and slope of each defect. The scanning is performed by a single
BRIGANTE, MICHELE, M. A. Sumbatyan
core   +1 more source

Numerical Modeling of Cracked Arch Dams. Effect of Open Joints during the Construction Phase

open access: yesInfrastructures
Running a numerical model for a cracked arch dam that takes into account all the particularities of the materials and dam with a high level of detail has a great computational cost involved. For this reason, it is usual to simplify such a model in search
André Conde   +2 more
doaj   +1 more source

Estimates of fluid pressure and tectonic stress in hydrothermal/volcanic areas:a methodological approach

open access: yesAnnals of Geophysics, 2005
An analytical approach to estimate the relative contribution of the fluid pressure and tectonic stress in hydrothermal/ volcanic areas is proposed assuming a Coulomb criterion of failure.
G. Vilardo, G. Ventura
doaj   +1 more source

Cracks Cleave Crystals

open access: yes, 2003
The problem of finding what direction cracks should move is not completely solved. A commonly accepted way to predict crack directions is by computing the density of elastic potential energy stored well away from the crack tip, and finding a direction of
Broberg K. B.   +6 more
core   +2 more sources

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