Results 21 to 30 of about 327,072 (350)
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
Reexamination of the mandibular and dental morphology of the Early Jurassic mammaliaform Hadrocodium wui [PDF]
Acta Palaeontologica Polonica, 2022 CT visualization of the mandible and dentition of Hadrocodium wui, a stem mammaliaform from the Lower Jurassic Lower Lufeng Formation of Yunnan, China has revealed new features not accessible by previous microscopic study of the fossil.
ZHE-XI LUO +4 more
doaj +1 more source
Review of high-speed imaging with lab-based x-ray computed tomography
Measurement science and technology, 2021 X-ray computed tomography (CT) is frequently used for non-destructive testing with many applications in a wide range of scientific research areas. The difference in imaging speeds between synchrotron and lab-based scanning has reduced as the capabilities
E. A. Zwanenburg +2 more
semanticscholar +1 more source
Convolutional Neural Network Based Metal Artifact Reduction in X-Ray Computed Tomography [PDF]
IEEE Transactions on Medical Imaging, 2017 In the presence of metal implants, metal artifacts are introduced to x-ray computed tomography CT images. Although a large number of metal artifact reduction (MAR) methods have been proposed in the past decades, MAR is still one of the major problems in ...
Yanbo Zhang, Hengyong Yu
semanticscholar +1 more source
npj Breast Cancer, 2021 Conventional CT scanners use energy-integrating detectors (EIDs). Photon-counting detector (PCD) computed tomography (CT) utilizes a CT detector technology based on smaller detector pixels capable of counting single photons and in addition discriminating
E. Wehrse +9 more
doaj +1 more source
ROOT PHENOTYPING FROM X-RAY COMPUTED TOMOGRAPHY: SKELETON EXTRACTION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Breakthrough imaging technologies are a potential solution to the plant phenotyping bottleneck in marker-assisted breeding and genetic mapping. X-Ray CT (computed tomography) technology is able to acquire the digital twin of root system architecture (RSA)
M. Herrero-Huerta +5 more
doaj +1 more source
X‐ray Stain Localization with Near‐Field Ptychographic Computed Tomography
Advanced Science, 2022 Although X‐ray contrast agents offer specific characteristics in terms of targeting and attenuation, their accumulation in the tissue on a cellular level is usually not known and difficult to access, as it requires high resolution and sensitivity.
Kirsten Taphorn +9 more
doaj +1 more source
Plant Phenomics, 2020 The traits of rice panicles play important roles in yield assessment, variety classification, rice breeding, and cultivation management. Most traditional grain phenotyping methods require threshing and thus are time-consuming and labor-intensive ...
Weijuan Hu +7 more
semanticscholar +1 more source
A Dilatometric Study of Graphite Electrodes during Cycling with X-ray Computed Tomography
Journal of the Electrochemical Society, 2020 Graphite is the most commonly used anode material in commercial lithium-ion batteries (LiBs). Understanding the mechanisms driving the dimensional changes of graphite can pave the way to methods for inhibiting degradation pathways and possibly predict ...
H. Michael +7 more
semanticscholar +1 more source
Algorithms for joint activity–attenuation estimation from positron emission tomography scatter
EJNMMI Physics, 2019 Background Attenuation correction in positron emission tomography remains challenging in the absence of measured transmission data. Scattered emission data may contribute missing information, but quantitative scatter-to-attenuation (S2A) reconstruction ...
Yannick Berker +2 more
doaj +1 more source