| http://www.w3.org/ns/prov#value | - For example, in the specific context of construction maintenance, data from radar or acoustic energy reflections can be gathered from buildings, bridges, airfields, dams or other large constructions, and the described methods may be advantageously applied for detecting cracks or other flaws. [0067] Numerous variations and modifications will become apparent to those skilled in the art once the abov
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