1,124 research outputs found
BOOK REVIEW: The European Fortune of the Roman Veronica in the Middle Ages, edited by Amanda Murphy, Herbert L. Kessler, Marco Petoletti, Eamon Duffy & Guido Milanese, with the collaboration of Veronika Tvrzniková, Brno, Masaryk University (Turnhout, Brepols, 2017)
An Ignominious Burial: The Treatment of the Body of Jesus of Nazareth
akzeptierte Manuskriptversio
A Cure for Rabies or a Remedy for Concupiscence? A Baptism of the Elchasaites
akzeptierte Manuskriptversio
Application and comparison of three tomographic techniques for detection of decay in trees
This paper reports application of electric, ultrasonic, and georadar tomography for detection of decay in trees and their comparison with the traditional penetrometer. Their feasibility in arboriculture is also evaluated, critically considering some "open problems." The experiments were carried out in an urban environment on two plane (Platanus hybrida Brot.) trees. Both trees, after felling, showed extensive white rot in the central cylinder. The electric tomography revealed low resistivity zones roughly centered in the trunk. A comparison with the successively cut sections showed a fine correspondence to decayed areas and a strong correspondence between high moisture zones and low resistivity zones. Ultrasonic tomography demonstrated to be a very effective tool for the detection of internal decay, accurately locating the position of the anomalies and estimating their size, shape, and characteristic in terms of mechanical properties. With the georadar technique, the high contrast of electromagnetic impedance measured between the inner decayed section and the outside sound section allowed the detection of the interface between the sound and decayed section of the tree, using radar acquisition in reflection modality. The penetrometer profiles detected the low-resistance areas inside the two trunk
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