Human Occupation of the North American Colorado Plateau ∼37,000 Years Ago
Frontiers in Ecology and Evolution, 2022 Calibrating human population dispersals across Earth’s surface is fundamental to assessing rates and timing of anthropogenic impacts and distinguishing ecological phenomena influenced by humans from those that were not.
Timothy B. Rowe +9 more
doaj +1 more source
Multi-frame DVC for temporal image sequences
Frontiers in Materials, 2022 Digital volume correlation (DVC) is a 3D image-based technique for displacement and strain computation. Traditionally, both (digital image correlation) DIC and DVC are methods based on two individual time frames; the estimation of the displacement and ...
Zaira Manigrasso +12 more
doaj +1 more source
Ultra-high speed X-ray imaging of dynamic fracturing in cementitious materials under impact [PDF]
EPJ Web of Conferences, 2021 In this work the dynamic fracturing of an ultra-high strength cementitious material is probed with in-situ ultra-high speed X-ray phase-contrast diagnostics to investigate the phenomenology of dynamic fracture.
Lukić Bratislav +9 more
doaj +1 more source
Tunable X-ray dark-field imaging for sub-resolution feature size quantification in porous media
Scientific Reports, 2021 X-ray computed micro-tomography typically involves a trade-off between sample size and resolution, complicating the study at a micrometer scale of representative volumes of materials with broad feature size distributions (e.g. natural stones). X-ray dark-
Benjamin K. Blykers +8 more
doaj +1 more source
Multiscale correlative tomography: an investigation of creep cavitation in 316 stainless steel [PDF]
, 2017 Creep cavitation in an ex-service nuclear steam header Type 316 stainless steel sample is investigated through a multiscale tomography workflow spanning eight orders of magnitude, combining X-ray computed tomography (CT), plasma focused ion beam (FIB ...
A Delobbe +31 more
core +2 more sources
A CASE STUDY OF COPPER-ARSENIC EWER FROM THE EGYPTIAN MUSEUM IN CAIRO, EGYPT [PDF]
Journal of the General Union of Arab Archaeologists, 2018 (En) This paper presents an analytical study and treatment of an Arsenical Copper ewer from old kingdom stored in the Egyptian Museum in Cairo. Examination and analysis were carried out by using optical microscopy (OM), metallographic microscopy and ...
Abeer Ibrahim, Manal Maher
doaj +1 more source
Deep Radiomic Analysis for Predicting Coronavirus Disease 2019 in Computerized Tomography and X-ray Images [PDF]
IEEE Trans Neural Netw Learn Syst. 2022 Jan;33(1):3-11, 2022 This paper proposes to encode the distribution of features learned from a convolutional neural network using a Gaussian Mixture Model. These parametric features, called GMM-CNN, are derived from chest computed tomography and X-ray scans of patients with Coronavirus Disease 2019. We use the proposed GMM-CNN features as input to a robust classifier based
arxiv +1 more source
Characteristic of x-ray tomography performance using CdTe timepix detector [PDF]
, 2017 X-ray Computed Tomography (CT) is a non-destructive technique for visualizing interior features within solid objects, and for obtaining digital information on their 3-D geometries and properties.
Maneuski, D., O'Shea, V., Zain, R.M.
core +1 more source
COMPLEMENTARITY BETWEEN IN SITU STUDIES AND PHOTOGRAMMETRY: METHODOLOGICAL FEEDBACK FROM A ROMAN SHIPWRECK IN CAESAREA, ISRAEL [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 As a quick and effective way to archive the different stages of an excavation - notably to prepare the post-excavation phase and to document the production methods – photogrammetry has become an indispensable tool.
B. Derenne +3 more
doaj +1 more source
Moisture Dynamics of Wood-Based Panels and Wood Fibre Insulation Materials
Frontiers in Plant Science, 2022 Moisture performance is an important factor determining the resistance of wood-based building materials against fungal decay. Understanding how material porosity and chemistry affect moisture performance is necessary for their efficient use, as well as ...
Liselotte De Ligne +11 more
doaj +1 more source